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[divverent/darkplaces.git] / prvm_cmds.c
1 // AK
2 // Basically every vm builtin cmd should be in here.
3 // All 3 builtin and extension lists can be found here
4 // cause large (I think they will) parts are from pr_cmds the same copyright like in pr_cmds
5 // also applies here
6
7 #include "quakedef.h"
8
9 #include "prvm_cmds.h"
10 #include "libcurl.h"
11 #include <time.h>
12
13 #include "ft2.h"
14
15 extern cvar_t prvm_backtraceforwarnings;
16
17 // LordHavoc: changed this to NOT use a return statement, so that it can be used in functions that must return a value
18 void VM_Warning(const char *fmt, ...)
19 {
20         va_list argptr;
21         char msg[MAX_INPUTLINE];
22         static double recursive = -1;
23
24         va_start(argptr,fmt);
25         dpvsnprintf(msg,sizeof(msg),fmt,argptr);
26         va_end(argptr);
27
28         Con_Print(msg);
29
30         // TODO: either add a cvar/cmd to control the state dumping or replace some of the calls with Con_Printf [9/13/2006 Black]
31         if(prvm_backtraceforwarnings.integer && recursive != realtime) // NOTE: this compares to the time, just in case if PRVM_PrintState causes a Host_Error and keeps recursive set
32         {
33                 recursive = realtime;
34                 PRVM_PrintState();
35                 recursive = -1;
36         }
37 }
38
39
40 //============================================================================
41 // Common
42
43 // TODO DONE: move vm_files and vm_fssearchlist to prvm_prog_t struct
44 // TODO: move vm_files and vm_fssearchlist back [9/13/2006 Black]
45 // TODO: (move vm_files and vm_fssearchlist to prvm_prog_t struct again) [2007-01-23 LordHavoc]
46 // TODO: will this war ever end? [2007-01-23 LordHavoc]
47
48 void VM_CheckEmptyString (const char *s)
49 {
50         if (ISWHITESPACE(s[0]))
51                 PRVM_ERROR ("%s: Bad string", PRVM_NAME);
52 }
53
54 void VM_GenerateFrameGroupBlend(framegroupblend_t *framegroupblend, const prvm_edict_t *ed)
55 {
56         prvm_eval_t *val;
57         // self.frame is the interpolation target (new frame)
58         // self.frame1time is the animation base time for the interpolation target
59         // self.frame2 is the interpolation start (previous frame)
60         // self.frame2time is the animation base time for the interpolation start
61         // self.lerpfrac is the interpolation strength for self.frame2
62         // self.lerpfrac3 is the interpolation strength for self.frame3
63         // self.lerpfrac4 is the interpolation strength for self.frame4
64         // pitch angle on a player model where the animator set up 5 sets of
65         // animations and the csqc simply lerps between sets)
66         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame))) framegroupblend[0].frame = (int) val->_float;
67         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) framegroupblend[1].frame = (int) val->_float;
68         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3))) framegroupblend[2].frame = (int) val->_float;
69         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4))) framegroupblend[3].frame = (int) val->_float;
70         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) framegroupblend[0].start = val->_float;
71         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) framegroupblend[1].start = val->_float;
72         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3time))) framegroupblend[2].start = val->_float;
73         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4time))) framegroupblend[3].start = val->_float;
74         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) framegroupblend[1].lerp = val->_float;
75         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac3))) framegroupblend[2].lerp = val->_float;
76         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac4))) framegroupblend[3].lerp = val->_float;
77         // assume that the (missing) lerpfrac1 is whatever remains after lerpfrac2+lerpfrac3+lerpfrac4 are summed
78         framegroupblend[0].lerp = 1 - framegroupblend[1].lerp - framegroupblend[2].lerp - framegroupblend[3].lerp;
79 }
80
81 // LordHavoc: quite tempting to break apart this function to reuse the
82 //            duplicated code, but I suspect it is better for performance
83 //            this way
84 void VM_FrameBlendFromFrameGroupBlend(frameblend_t *frameblend, const framegroupblend_t *framegroupblend, const dp_model_t *model)
85 {
86         int sub2, numframes, f, i, k;
87         int isfirstframegroup = true;
88         int nolerp;
89         double sublerp, lerp, d;
90         const animscene_t *scene;
91         const framegroupblend_t *g;
92         frameblend_t *blend = frameblend;
93
94         memset(blend, 0, MAX_FRAMEBLENDS * sizeof(*blend));
95
96         if (!model || !model->surfmesh.isanimated)
97         {
98                 blend[0].lerp = 1;
99                 return;
100         }
101
102         nolerp = (model->type == mod_sprite) ? !r_lerpsprites.integer : !r_lerpmodels.integer;
103         numframes = model->numframes;
104         for (k = 0, g = framegroupblend;k < MAX_FRAMEGROUPBLENDS;k++, g++)
105         {
106                 f = g->frame;
107                 if ((unsigned int)f >= (unsigned int)numframes)
108                 {
109                         Con_DPrintf("VM_FrameBlendFromFrameGroupBlend: no such frame %d in model %s\n", f, model->name);
110                         f = 0;
111                 }
112                 d = lerp = g->lerp;
113                 if (lerp <= 0)
114                         continue;
115                 if (nolerp)
116                 {
117                         if (isfirstframegroup)
118                         {
119                                 d = lerp = 1;
120                                 isfirstframegroup = false;
121                         }
122                         else
123                                 continue;
124                 }
125                 if (model->animscenes)
126                 {
127                         scene = model->animscenes + f;
128                         f = scene->firstframe;
129                         if (scene->framecount > 1)
130                         {
131                                 // this code path is only used on .zym models and torches
132                                 sublerp = scene->framerate * (cl.time - g->start);
133                                 f = (int) floor(sublerp);
134                                 sublerp -= f;
135                                 sub2 = f + 1;
136                                 if (sublerp < (1.0 / 65536.0f))
137                                         sublerp = 0;
138                                 if (sublerp > (65535.0f / 65536.0f))
139                                         sublerp = 1;
140                                 if (nolerp)
141                                         sublerp = 0;
142                                 if (scene->loop)
143                                 {
144                                         f = (f % scene->framecount);
145                                         sub2 = (sub2 % scene->framecount);
146                                 }
147                                 f = bound(0, f, (scene->framecount - 1)) + scene->firstframe;
148                                 sub2 = bound(0, sub2, (scene->framecount - 1)) + scene->firstframe;
149                                 d = sublerp * lerp;
150                                 // two framelerps produced from one animation
151                                 if (d > 0)
152                                 {
153                                         for (i = 0;i < MAX_FRAMEBLENDS;i++)
154                                         {
155                                                 if (blend[i].lerp <= 0 || blend[i].subframe == sub2)
156                                                 {
157                                                         blend[i].subframe = sub2;
158                                                         blend[i].lerp += d;
159                                                         break;
160                                                 }
161                                         }
162                                 }
163                                 d = (1 - sublerp) * lerp;
164                         }
165                 }
166                 if (d > 0)
167                 {
168                         for (i = 0;i < MAX_FRAMEBLENDS;i++)
169                         {
170                                 if (blend[i].lerp <= 0 || blend[i].subframe == f)
171                                 {
172                                         blend[i].subframe = f;
173                                         blend[i].lerp += d;
174                                         break;
175                                 }
176                         }
177                 }
178         }
179 }
180
181 void VM_UpdateEdictSkeleton(prvm_edict_t *ed, const dp_model_t *edmodel, const frameblend_t *frameblend)
182 {
183         if (ed->priv.server->skeleton.model != edmodel)
184         {
185                 VM_RemoveEdictSkeleton(ed);
186                 ed->priv.server->skeleton.model = edmodel;
187         }
188         if (!ed->priv.server->skeleton.relativetransforms && ed->priv.server->skeleton.model && ed->priv.server->skeleton.model->num_bones)
189                 ed->priv.server->skeleton.relativetransforms = Mem_Alloc(prog->progs_mempool, ed->priv.server->skeleton.model->num_bones * sizeof(matrix4x4_t));
190         if (ed->priv.server->skeleton.relativetransforms)
191         {
192                 int skeletonindex = 0;
193                 skeleton_t *skeleton;
194                 prvm_eval_t *val;
195                 if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.skeletonindex))) skeletonindex = (int)val->_float;
196                 if (skeletonindex > 0 && skeletonindex < MAX_EDICTS && (skeleton = prog->skeletons[skeletonindex]) && skeleton->model->num_bones == ed->priv.server->skeleton.model->num_bones)
197                 {
198                         // custom skeleton controlled by the game (FTE_CSQC_SKELETONOBJECTS)
199                         memcpy(ed->priv.server->skeleton.relativetransforms, skeleton->relativetransforms, ed->priv.server->skeleton.model->num_bones * sizeof(matrix4x4_t));
200                 }
201                 else
202                 {
203                         // generated skeleton from frame animation
204                         int blendindex;
205                         int bonenum;
206                         int numbones = ed->priv.server->skeleton.model->num_bones;
207                         const float *poses = ed->priv.server->skeleton.model->data_poses;
208                         const float *framebones;
209                         float lerp;
210                         matrix4x4_t *relativetransforms = ed->priv.server->skeleton.relativetransforms;
211                         matrix4x4_t matrix;
212                         memset(relativetransforms, 0, numbones * sizeof(matrix4x4_t));
213                         for (blendindex = 0;blendindex < MAX_FRAMEBLENDS && frameblend[blendindex].lerp > 0;blendindex++)
214                         {
215                                 lerp = frameblend[blendindex].lerp;
216                                 framebones = poses + 12 * frameblend[blendindex].subframe * numbones;
217                                 for (bonenum = 0;bonenum < numbones;bonenum++)
218                                 {
219                                         Matrix4x4_FromArray12FloatD3D(&matrix, framebones + 12 * bonenum);
220                                         Matrix4x4_Accumulate(&ed->priv.server->skeleton.relativetransforms[bonenum], &matrix, lerp);
221                                 }
222                         }
223                 }
224         }
225 }
226
227 void VM_RemoveEdictSkeleton(prvm_edict_t *ed)
228 {
229         if (ed->priv.server->skeleton.relativetransforms)
230                 Mem_Free(ed->priv.server->skeleton.relativetransforms);
231         memset(&ed->priv.server->skeleton, 0, sizeof(ed->priv.server->skeleton));
232 }
233
234
235
236
237 //============================================================================
238 //BUILT-IN FUNCTIONS
239
240 void VM_VarString(int first, char *out, int outlength)
241 {
242         int i;
243         const char *s;
244         char *outend;
245
246         outend = out + outlength - 1;
247         for (i = first;i < prog->argc && out < outend;i++)
248         {
249                 s = PRVM_G_STRING((OFS_PARM0+i*3));
250                 while (out < outend && *s)
251                         *out++ = *s++;
252         }
253         *out++ = 0;
254 }
255
256 /*
257 =================
258 VM_checkextension
259
260 returns true if the extension is supported by the server
261
262 checkextension(extensionname)
263 =================
264 */
265
266 // kind of helper function
267 static qboolean checkextension(const char *name)
268 {
269         int len;
270         char *e, *start;
271         len = (int)strlen(name);
272
273         for (e = prog->extensionstring;*e;e++)
274         {
275                 while (*e == ' ')
276                         e++;
277                 if (!*e)
278                         break;
279                 start = e;
280                 while (*e && *e != ' ')
281                         e++;
282                 if ((e - start) == len && !strncasecmp(start, name, len))
283                         return true;
284         }
285         return false;
286 }
287
288 void VM_checkextension (void)
289 {
290         VM_SAFEPARMCOUNT(1,VM_checkextension);
291
292         PRVM_G_FLOAT(OFS_RETURN) = checkextension(PRVM_G_STRING(OFS_PARM0));
293 }
294
295 /*
296 =================
297 VM_error
298
299 This is a TERMINAL error, which will kill off the entire prog.
300 Dumps self.
301
302 error(value)
303 =================
304 */
305 void VM_error (void)
306 {
307         prvm_edict_t    *ed;
308         char string[VM_STRINGTEMP_LENGTH];
309
310         VM_VarString(0, string, sizeof(string));
311         Con_Printf("======%s ERROR in %s:\n%s\n", PRVM_NAME, PRVM_GetString(prog->xfunction->s_name), string);
312         if (prog->globaloffsets.self >= 0)
313         {
314                 ed = PRVM_PROG_TO_EDICT(PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict);
315                 PRVM_ED_Print(ed, NULL);
316         }
317
318         PRVM_ERROR ("%s: Program error in function %s:\n%s\nTip: read above for entity information\n", PRVM_NAME, PRVM_GetString(prog->xfunction->s_name), string);
319 }
320
321 /*
322 =================
323 VM_objerror
324
325 Dumps out self, then an error message.  The program is aborted and self is
326 removed, but the level can continue.
327
328 objerror(value)
329 =================
330 */
331 void VM_objerror (void)
332 {
333         prvm_edict_t    *ed;
334         char string[VM_STRINGTEMP_LENGTH];
335
336         VM_VarString(0, string, sizeof(string));
337         Con_Printf("======OBJECT ERROR======\n"); // , PRVM_NAME, PRVM_GetString(prog->xfunction->s_name), string); // or include them? FIXME
338         if (prog->globaloffsets.self >= 0)
339         {
340                 ed = PRVM_PROG_TO_EDICT(PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict);
341                 PRVM_ED_Print(ed, NULL);
342
343                 PRVM_ED_Free (ed);
344         }
345         else
346                 // objerror has to display the object fields -> else call
347                 PRVM_ERROR ("VM_objecterror: self not defined !");
348         Con_Printf("%s OBJECT ERROR in %s:\n%s\nTip: read above for entity information\n", PRVM_NAME, PRVM_GetString(prog->xfunction->s_name), string);
349 }
350
351 /*
352 =================
353 VM_print
354
355 print to console
356
357 print(...[string])
358 =================
359 */
360 void VM_print (void)
361 {
362         char string[VM_STRINGTEMP_LENGTH];
363
364         VM_VarString(0, string, sizeof(string));
365         Con_Print(string);
366 }
367
368 /*
369 =================
370 VM_bprint
371
372 broadcast print to everyone on server
373
374 bprint(...[string])
375 =================
376 */
377 void VM_bprint (void)
378 {
379         char string[VM_STRINGTEMP_LENGTH];
380
381         if(!sv.active)
382         {
383                 VM_Warning("VM_bprint: game is not server(%s) !\n", PRVM_NAME);
384                 return;
385         }
386
387         VM_VarString(0, string, sizeof(string));
388         SV_BroadcastPrint(string);
389 }
390
391 /*
392 =================
393 VM_sprint (menu & client but only if server.active == true)
394
395 single print to a specific client
396
397 sprint(float clientnum,...[string])
398 =================
399 */
400 void VM_sprint (void)
401 {
402         client_t        *client;
403         int                     clientnum;
404         char string[VM_STRINGTEMP_LENGTH];
405
406         VM_SAFEPARMCOUNTRANGE(1, 8, VM_sprint);
407
408         //find client for this entity
409         clientnum = (int)PRVM_G_FLOAT(OFS_PARM0);
410         if (!sv.active  || clientnum < 0 || clientnum >= svs.maxclients || !svs.clients[clientnum].active)
411         {
412                 VM_Warning("VM_sprint: %s: invalid client or server is not active !\n", PRVM_NAME);
413                 return;
414         }
415
416         client = svs.clients + clientnum;
417         if (!client->netconnection)
418                 return;
419
420         VM_VarString(1, string, sizeof(string));
421         MSG_WriteChar(&client->netconnection->message,svc_print);
422         MSG_WriteString(&client->netconnection->message, string);
423 }
424
425 /*
426 =================
427 VM_centerprint
428
429 single print to the screen
430
431 centerprint(value)
432 =================
433 */
434 void VM_centerprint (void)
435 {
436         char string[VM_STRINGTEMP_LENGTH];
437
438         VM_SAFEPARMCOUNTRANGE(1, 8, VM_centerprint);
439         VM_VarString(0, string, sizeof(string));
440         SCR_CenterPrint(string);
441 }
442
443 /*
444 =================
445 VM_normalize
446
447 vector normalize(vector)
448 =================
449 */
450 void VM_normalize (void)
451 {
452         float   *value1;
453         vec3_t  newvalue;
454         double  f;
455
456         VM_SAFEPARMCOUNT(1,VM_normalize);
457
458         value1 = PRVM_G_VECTOR(OFS_PARM0);
459
460         f = VectorLength2(value1);
461         if (f)
462         {
463                 f = 1.0 / sqrt(f);
464                 VectorScale(value1, f, newvalue);
465         }
466         else
467                 VectorClear(newvalue);
468
469         VectorCopy (newvalue, PRVM_G_VECTOR(OFS_RETURN));
470 }
471
472 /*
473 =================
474 VM_vlen
475
476 scalar vlen(vector)
477 =================
478 */
479 void VM_vlen (void)
480 {
481         VM_SAFEPARMCOUNT(1,VM_vlen);
482         PRVM_G_FLOAT(OFS_RETURN) = VectorLength(PRVM_G_VECTOR(OFS_PARM0));
483 }
484
485 /*
486 =================
487 VM_vectoyaw
488
489 float vectoyaw(vector)
490 =================
491 */
492 void VM_vectoyaw (void)
493 {
494         float   *value1;
495         float   yaw;
496
497         VM_SAFEPARMCOUNT(1,VM_vectoyaw);
498
499         value1 = PRVM_G_VECTOR(OFS_PARM0);
500
501         if (value1[1] == 0 && value1[0] == 0)
502                 yaw = 0;
503         else
504         {
505                 yaw = (int) (atan2(value1[1], value1[0]) * 180 / M_PI);
506                 if (yaw < 0)
507                         yaw += 360;
508         }
509
510         PRVM_G_FLOAT(OFS_RETURN) = yaw;
511 }
512
513
514 /*
515 =================
516 VM_vectoangles
517
518 vector vectoangles(vector[, vector])
519 =================
520 */
521 void VM_vectoangles (void)
522 {
523         VM_SAFEPARMCOUNTRANGE(1, 2,VM_vectoangles);
524
525         AnglesFromVectors(PRVM_G_VECTOR(OFS_RETURN), PRVM_G_VECTOR(OFS_PARM0), prog->argc >= 2 ? PRVM_G_VECTOR(OFS_PARM1) : NULL, true);
526 }
527
528 /*
529 =================
530 VM_random
531
532 Returns a number from 0<= num < 1
533
534 float random()
535 =================
536 */
537 void VM_random (void)
538 {
539         VM_SAFEPARMCOUNT(0,VM_random);
540
541         PRVM_G_FLOAT(OFS_RETURN) = lhrandom(0, 1);
542 }
543
544 /*
545 =========
546 VM_localsound
547
548 localsound(string sample)
549 =========
550 */
551 void VM_localsound(void)
552 {
553         const char *s;
554
555         VM_SAFEPARMCOUNT(1,VM_localsound);
556
557         s = PRVM_G_STRING(OFS_PARM0);
558
559         if(!S_LocalSound (s))
560         {
561                 PRVM_G_FLOAT(OFS_RETURN) = -4;
562                 VM_Warning("VM_localsound: Failed to play %s for %s !\n", s, PRVM_NAME);
563                 return;
564         }
565
566         PRVM_G_FLOAT(OFS_RETURN) = 1;
567 }
568
569 /*
570 =================
571 VM_break
572
573 break()
574 =================
575 */
576 void VM_break (void)
577 {
578         PRVM_ERROR ("%s: break statement", PRVM_NAME);
579 }
580
581 //============================================================================
582
583 /*
584 =================
585 VM_localcmd
586
587 Sends text over to the client's execution buffer
588
589 [localcmd (string, ...) or]
590 cmd (string, ...)
591 =================
592 */
593 void VM_localcmd (void)
594 {
595         char string[VM_STRINGTEMP_LENGTH];
596         VM_SAFEPARMCOUNTRANGE(1, 8, VM_localcmd);
597         VM_VarString(0, string, sizeof(string));
598         Cbuf_AddText(string);
599 }
600
601 static qboolean PRVM_Cvar_ReadOk(const char *string)
602 {
603         cvar_t *cvar;
604         cvar = Cvar_FindVar(string);
605         return ((cvar) && ((cvar->flags & CVAR_PRIVATE) == 0));
606 }
607
608 /*
609 =================
610 VM_cvar
611
612 float cvar (string)
613 =================
614 */
615 void VM_cvar (void)
616 {
617         char string[VM_STRINGTEMP_LENGTH];
618         VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar);
619         VM_VarString(0, string, sizeof(string));
620         VM_CheckEmptyString(string);
621         PRVM_G_FLOAT(OFS_RETURN) = PRVM_Cvar_ReadOk(string) ? Cvar_VariableValue(string) : 0;
622 }
623
624 /*
625 =================
626 VM_cvar
627
628 float cvar_type (string)
629 float CVAR_TYPEFLAG_EXISTS = 1;
630 float CVAR_TYPEFLAG_SAVED = 2;
631 float CVAR_TYPEFLAG_PRIVATE = 4;
632 float CVAR_TYPEFLAG_ENGINE = 8;
633 float CVAR_TYPEFLAG_HASDESCRIPTION = 16;
634 float CVAR_TYPEFLAG_READONLY = 32;
635 =================
636 */
637 void VM_cvar_type (void)
638 {
639         char string[VM_STRINGTEMP_LENGTH];
640         cvar_t *cvar;
641         int ret;
642
643         VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar);
644         VM_VarString(0, string, sizeof(string));
645         VM_CheckEmptyString(string);
646         cvar = Cvar_FindVar(string);
647
648
649         if(!cvar)
650         {
651                 PRVM_G_FLOAT(OFS_RETURN) = 0;
652                 return; // CVAR_TYPE_NONE
653         }
654
655         ret = 1; // CVAR_EXISTS
656         if(cvar->flags & CVAR_SAVE)
657                 ret |= 2; // CVAR_TYPE_SAVED
658         if(cvar->flags & CVAR_PRIVATE)
659                 ret |= 4; // CVAR_TYPE_PRIVATE
660         if(!(cvar->flags & CVAR_ALLOCATED))
661                 ret |= 8; // CVAR_TYPE_ENGINE
662         if(cvar->description != cvar_dummy_description)
663                 ret |= 16; // CVAR_TYPE_HASDESCRIPTION
664         if(cvar->flags & CVAR_READONLY)
665                 ret |= 32; // CVAR_TYPE_READONLY
666         
667         PRVM_G_FLOAT(OFS_RETURN) = ret;
668 }
669
670 /*
671 =================
672 VM_cvar_string
673
674 const string    VM_cvar_string (string, ...)
675 =================
676 */
677 void VM_cvar_string(void)
678 {
679         char string[VM_STRINGTEMP_LENGTH];
680         VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar_string);
681         VM_VarString(0, string, sizeof(string));
682         VM_CheckEmptyString(string);
683         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(PRVM_Cvar_ReadOk(string) ? Cvar_VariableString(string) : "");
684 }
685
686
687 /*
688 ========================
689 VM_cvar_defstring
690
691 const string    VM_cvar_defstring (string, ...)
692 ========================
693 */
694 void VM_cvar_defstring (void)
695 {
696         char string[VM_STRINGTEMP_LENGTH];
697         VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar_defstring);
698         VM_VarString(0, string, sizeof(string));
699         VM_CheckEmptyString(string);
700         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(Cvar_VariableDefString(string));
701 }
702
703 /*
704 ========================
705 VM_cvar_defstring
706
707 const string    VM_cvar_description (string, ...)
708 ========================
709 */
710 void VM_cvar_description (void)
711 {
712         char string[VM_STRINGTEMP_LENGTH];
713         VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar_description);
714         VM_VarString(0, string, sizeof(string));
715         VM_CheckEmptyString(string);
716         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(Cvar_VariableDescription(string));
717 }
718 /*
719 =================
720 VM_cvar_set
721
722 void cvar_set (string,string, ...)
723 =================
724 */
725 void VM_cvar_set (void)
726 {
727         const char *name;
728         char string[VM_STRINGTEMP_LENGTH];
729         VM_SAFEPARMCOUNTRANGE(2,8,VM_cvar_set);
730         VM_VarString(1, string, sizeof(string));
731         name = PRVM_G_STRING(OFS_PARM0);
732         VM_CheckEmptyString(name);
733         Cvar_Set(name, string);
734 }
735
736 /*
737 =========
738 VM_dprint
739
740 dprint(...[string])
741 =========
742 */
743 void VM_dprint (void)
744 {
745         char string[VM_STRINGTEMP_LENGTH];
746         VM_SAFEPARMCOUNTRANGE(1, 8, VM_dprint);
747         if (developer.integer)
748         {
749                 VM_VarString(0, string, sizeof(string));
750 #if 1
751                 Con_Printf("%s", string);
752 #else
753                 Con_Printf("%s: %s", PRVM_NAME, string);
754 #endif
755         }
756 }
757
758 /*
759 =========
760 VM_ftos
761
762 string  ftos(float)
763 =========
764 */
765
766 void VM_ftos (void)
767 {
768         float v;
769         char s[128];
770
771         VM_SAFEPARMCOUNT(1, VM_ftos);
772
773         v = PRVM_G_FLOAT(OFS_PARM0);
774
775         if ((float)((int)v) == v)
776                 dpsnprintf(s, sizeof(s), "%i", (int)v);
777         else
778                 dpsnprintf(s, sizeof(s), "%f", v);
779         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(s);
780 }
781
782 /*
783 =========
784 VM_fabs
785
786 float   fabs(float)
787 =========
788 */
789
790 void VM_fabs (void)
791 {
792         float   v;
793
794         VM_SAFEPARMCOUNT(1,VM_fabs);
795
796         v = PRVM_G_FLOAT(OFS_PARM0);
797         PRVM_G_FLOAT(OFS_RETURN) = fabs(v);
798 }
799
800 /*
801 =========
802 VM_vtos
803
804 string  vtos(vector)
805 =========
806 */
807
808 void VM_vtos (void)
809 {
810         char s[512];
811
812         VM_SAFEPARMCOUNT(1,VM_vtos);
813
814         dpsnprintf (s, sizeof(s), "'%5.1f %5.1f %5.1f'", PRVM_G_VECTOR(OFS_PARM0)[0], PRVM_G_VECTOR(OFS_PARM0)[1], PRVM_G_VECTOR(OFS_PARM0)[2]);
815         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(s);
816 }
817
818 /*
819 =========
820 VM_etos
821
822 string  etos(entity)
823 =========
824 */
825
826 void VM_etos (void)
827 {
828         char s[128];
829
830         VM_SAFEPARMCOUNT(1, VM_etos);
831
832         dpsnprintf (s, sizeof(s), "entity %i", PRVM_G_EDICTNUM(OFS_PARM0));
833         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(s);
834 }
835
836 /*
837 =========
838 VM_stof
839
840 float stof(...[string])
841 =========
842 */
843 void VM_stof(void)
844 {
845         char string[VM_STRINGTEMP_LENGTH];
846         VM_SAFEPARMCOUNTRANGE(1, 8, VM_stof);
847         VM_VarString(0, string, sizeof(string));
848         PRVM_G_FLOAT(OFS_RETURN) = atof(string);
849 }
850
851 /*
852 ========================
853 VM_itof
854
855 float itof(intt ent)
856 ========================
857 */
858 void VM_itof(void)
859 {
860         VM_SAFEPARMCOUNT(1, VM_itof);
861         PRVM_G_FLOAT(OFS_RETURN) = PRVM_G_INT(OFS_PARM0);
862 }
863
864 /*
865 ========================
866 VM_ftoe
867
868 entity ftoe(float num)
869 ========================
870 */
871 void VM_ftoe(void)
872 {
873         int ent;
874         VM_SAFEPARMCOUNT(1, VM_ftoe);
875
876         ent = (int)PRVM_G_FLOAT(OFS_PARM0);
877         if (ent < 0 || ent >= MAX_EDICTS || PRVM_PROG_TO_EDICT(ent)->priv.required->free)
878                 ent = 0; // return world instead of a free or invalid entity
879
880         PRVM_G_INT(OFS_RETURN) = ent;
881 }
882
883 /*
884 ========================
885 VM_etof
886
887 float etof(entity ent)
888 ========================
889 */
890 void VM_etof(void)
891 {
892         VM_SAFEPARMCOUNT(1, VM_etof);
893         PRVM_G_FLOAT(OFS_RETURN) = PRVM_G_EDICTNUM(OFS_PARM0);
894 }
895
896 /*
897 =========
898 VM_strftime
899
900 string strftime(float uselocaltime, string[, string ...])
901 =========
902 */
903 void VM_strftime(void)
904 {
905         time_t t;
906 #if _MSC_VER >= 1400
907         struct tm tm;
908         int tmresult;
909 #else
910         struct tm *tm;
911 #endif
912         char fmt[VM_STRINGTEMP_LENGTH];
913         char result[VM_STRINGTEMP_LENGTH];
914         VM_SAFEPARMCOUNTRANGE(2, 8, VM_strftime);
915         VM_VarString(1, fmt, sizeof(fmt));
916         t = time(NULL);
917 #if _MSC_VER >= 1400
918         if (PRVM_G_FLOAT(OFS_PARM0))
919                 tmresult = localtime_s(&tm, &t);
920         else
921                 tmresult = gmtime_s(&tm, &t);
922         if (!tmresult)
923 #else
924         if (PRVM_G_FLOAT(OFS_PARM0))
925                 tm = localtime(&t);
926         else
927                 tm = gmtime(&t);
928         if (!tm)
929 #endif
930         {
931                 PRVM_G_INT(OFS_RETURN) = 0;
932                 return;
933         }
934 #if _MSC_VER >= 1400
935         strftime(result, sizeof(result), fmt, &tm);
936 #else
937         strftime(result, sizeof(result), fmt, tm);
938 #endif
939         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(result);
940 }
941
942 /*
943 =========
944 VM_spawn
945
946 entity spawn()
947 =========
948 */
949
950 void VM_spawn (void)
951 {
952         prvm_edict_t    *ed;
953         VM_SAFEPARMCOUNT(0, VM_spawn);
954         prog->xfunction->builtinsprofile += 20;
955         ed = PRVM_ED_Alloc();
956         VM_RETURN_EDICT(ed);
957 }
958
959 /*
960 =========
961 VM_remove
962
963 remove(entity e)
964 =========
965 */
966
967 void VM_remove (void)
968 {
969         prvm_edict_t    *ed;
970         prog->xfunction->builtinsprofile += 20;
971
972         VM_SAFEPARMCOUNT(1, VM_remove);
973
974         ed = PRVM_G_EDICT(OFS_PARM0);
975         if( PRVM_NUM_FOR_EDICT(ed) <= prog->reserved_edicts )
976         {
977                 if (developer.integer >= 1)
978                         VM_Warning( "VM_remove: tried to remove the null entity or a reserved entity!\n" );
979         }
980         else if( ed->priv.required->free )
981         {
982                 if (developer.integer >= 1)
983                         VM_Warning( "VM_remove: tried to remove an already freed entity!\n" );
984         }
985         else
986                 PRVM_ED_Free (ed);
987 }
988
989 /*
990 =========
991 VM_find
992
993 entity  find(entity start, .string field, string match)
994 =========
995 */
996
997 void VM_find (void)
998 {
999         int             e;
1000         int             f;
1001         const char      *s, *t;
1002         prvm_edict_t    *ed;
1003
1004         VM_SAFEPARMCOUNT(3,VM_find);
1005
1006         e = PRVM_G_EDICTNUM(OFS_PARM0);
1007         f = PRVM_G_INT(OFS_PARM1);
1008         s = PRVM_G_STRING(OFS_PARM2);
1009
1010         // LordHavoc: apparently BloodMage does a find(world, weaponmodel, "") and
1011         // expects it to find all the monsters, so we must be careful to support
1012         // searching for ""
1013
1014         for (e++ ; e < prog->num_edicts ; e++)
1015         {
1016                 prog->xfunction->builtinsprofile++;
1017                 ed = PRVM_EDICT_NUM(e);
1018                 if (ed->priv.required->free)
1019                         continue;
1020                 t = PRVM_E_STRING(ed,f);
1021                 if (!t)
1022                         t = "";
1023                 if (!strcmp(t,s))
1024                 {
1025                         VM_RETURN_EDICT(ed);
1026                         return;
1027                 }
1028         }
1029
1030         VM_RETURN_EDICT(prog->edicts);
1031 }
1032
1033 /*
1034 =========
1035 VM_findfloat
1036
1037   entity        findfloat(entity start, .float field, float match)
1038   entity        findentity(entity start, .entity field, entity match)
1039 =========
1040 */
1041 // LordHavoc: added this for searching float, int, and entity reference fields
1042 void VM_findfloat (void)
1043 {
1044         int             e;
1045         int             f;
1046         float   s;
1047         prvm_edict_t    *ed;
1048
1049         VM_SAFEPARMCOUNT(3,VM_findfloat);
1050
1051         e = PRVM_G_EDICTNUM(OFS_PARM0);
1052         f = PRVM_G_INT(OFS_PARM1);
1053         s = PRVM_G_FLOAT(OFS_PARM2);
1054
1055         for (e++ ; e < prog->num_edicts ; e++)
1056         {
1057                 prog->xfunction->builtinsprofile++;
1058                 ed = PRVM_EDICT_NUM(e);
1059                 if (ed->priv.required->free)
1060                         continue;
1061                 if (PRVM_E_FLOAT(ed,f) == s)
1062                 {
1063                         VM_RETURN_EDICT(ed);
1064                         return;
1065                 }
1066         }
1067
1068         VM_RETURN_EDICT(prog->edicts);
1069 }
1070
1071 /*
1072 =========
1073 VM_findchain
1074
1075 entity  findchain(.string field, string match)
1076 =========
1077 */
1078 // chained search for strings in entity fields
1079 // entity(.string field, string match) findchain = #402;
1080 void VM_findchain (void)
1081 {
1082         int             i;
1083         int             f;
1084         const char      *s, *t;
1085         prvm_edict_t    *ent, *chain;
1086         int chainfield;
1087
1088         VM_SAFEPARMCOUNTRANGE(2,3,VM_findchain);
1089
1090         if(prog->argc == 3)
1091                 chainfield = PRVM_G_INT(OFS_PARM2);
1092         else
1093                 chainfield = prog->fieldoffsets.chain;
1094         if (chainfield < 0)
1095                 PRVM_ERROR("VM_findchain: %s doesnt have the specified chain field !", PRVM_NAME);
1096
1097         chain = prog->edicts;
1098
1099         f = PRVM_G_INT(OFS_PARM0);
1100         s = PRVM_G_STRING(OFS_PARM1);
1101
1102         // LordHavoc: apparently BloodMage does a find(world, weaponmodel, "") and
1103         // expects it to find all the monsters, so we must be careful to support
1104         // searching for ""
1105
1106         ent = PRVM_NEXT_EDICT(prog->edicts);
1107         for (i = 1;i < prog->num_edicts;i++, ent = PRVM_NEXT_EDICT(ent))
1108         {
1109                 prog->xfunction->builtinsprofile++;
1110                 if (ent->priv.required->free)
1111                         continue;
1112                 t = PRVM_E_STRING(ent,f);
1113                 if (!t)
1114                         t = "";
1115                 if (strcmp(t,s))
1116                         continue;
1117
1118                 PRVM_EDICTFIELDVALUE(ent,chainfield)->edict = PRVM_NUM_FOR_EDICT(chain);
1119                 chain = ent;
1120         }
1121
1122         VM_RETURN_EDICT(chain);
1123 }
1124
1125 /*
1126 =========
1127 VM_findchainfloat
1128
1129 entity  findchainfloat(.string field, float match)
1130 entity  findchainentity(.string field, entity match)
1131 =========
1132 */
1133 // LordHavoc: chained search for float, int, and entity reference fields
1134 // entity(.string field, float match) findchainfloat = #403;
1135 void VM_findchainfloat (void)
1136 {
1137         int             i;
1138         int             f;
1139         float   s;
1140         prvm_edict_t    *ent, *chain;
1141         int chainfield;
1142
1143         VM_SAFEPARMCOUNTRANGE(2, 3, VM_findchainfloat);
1144
1145         if(prog->argc == 3)
1146                 chainfield = PRVM_G_INT(OFS_PARM2);
1147         else
1148                 chainfield = prog->fieldoffsets.chain;
1149         if (chainfield < 0)
1150                 PRVM_ERROR("VM_findchain: %s doesnt have the specified chain field !", PRVM_NAME);
1151
1152         chain = (prvm_edict_t *)prog->edicts;
1153
1154         f = PRVM_G_INT(OFS_PARM0);
1155         s = PRVM_G_FLOAT(OFS_PARM1);
1156
1157         ent = PRVM_NEXT_EDICT(prog->edicts);
1158         for (i = 1;i < prog->num_edicts;i++, ent = PRVM_NEXT_EDICT(ent))
1159         {
1160                 prog->xfunction->builtinsprofile++;
1161                 if (ent->priv.required->free)
1162                         continue;
1163                 if (PRVM_E_FLOAT(ent,f) != s)
1164                         continue;
1165
1166                 PRVM_EDICTFIELDVALUE(ent,chainfield)->edict = PRVM_EDICT_TO_PROG(chain);
1167                 chain = ent;
1168         }
1169
1170         VM_RETURN_EDICT(chain);
1171 }
1172
1173 /*
1174 ========================
1175 VM_findflags
1176
1177 entity  findflags(entity start, .float field, float match)
1178 ========================
1179 */
1180 // LordHavoc: search for flags in float fields
1181 void VM_findflags (void)
1182 {
1183         int             e;
1184         int             f;
1185         int             s;
1186         prvm_edict_t    *ed;
1187
1188         VM_SAFEPARMCOUNT(3, VM_findflags);
1189
1190
1191         e = PRVM_G_EDICTNUM(OFS_PARM0);
1192         f = PRVM_G_INT(OFS_PARM1);
1193         s = (int)PRVM_G_FLOAT(OFS_PARM2);
1194
1195         for (e++ ; e < prog->num_edicts ; e++)
1196         {
1197                 prog->xfunction->builtinsprofile++;
1198                 ed = PRVM_EDICT_NUM(e);
1199                 if (ed->priv.required->free)
1200                         continue;
1201                 if (!PRVM_E_FLOAT(ed,f))
1202                         continue;
1203                 if ((int)PRVM_E_FLOAT(ed,f) & s)
1204                 {
1205                         VM_RETURN_EDICT(ed);
1206                         return;
1207                 }
1208         }
1209
1210         VM_RETURN_EDICT(prog->edicts);
1211 }
1212
1213 /*
1214 ========================
1215 VM_findchainflags
1216
1217 entity  findchainflags(.float field, float match)
1218 ========================
1219 */
1220 // LordHavoc: chained search for flags in float fields
1221 void VM_findchainflags (void)
1222 {
1223         int             i;
1224         int             f;
1225         int             s;
1226         prvm_edict_t    *ent, *chain;
1227         int chainfield;
1228
1229         VM_SAFEPARMCOUNTRANGE(2, 3, VM_findchainflags);
1230
1231         if(prog->argc == 3)
1232                 chainfield = PRVM_G_INT(OFS_PARM2);
1233         else
1234                 chainfield = prog->fieldoffsets.chain;
1235         if (chainfield < 0)
1236                 PRVM_ERROR("VM_findchain: %s doesnt have the specified chain field !", PRVM_NAME);
1237
1238         chain = (prvm_edict_t *)prog->edicts;
1239
1240         f = PRVM_G_INT(OFS_PARM0);
1241         s = (int)PRVM_G_FLOAT(OFS_PARM1);
1242
1243         ent = PRVM_NEXT_EDICT(prog->edicts);
1244         for (i = 1;i < prog->num_edicts;i++, ent = PRVM_NEXT_EDICT(ent))
1245         {
1246                 prog->xfunction->builtinsprofile++;
1247                 if (ent->priv.required->free)
1248                         continue;
1249                 if (!PRVM_E_FLOAT(ent,f))
1250                         continue;
1251                 if (!((int)PRVM_E_FLOAT(ent,f) & s))
1252                         continue;
1253
1254                 PRVM_EDICTFIELDVALUE(ent,chainfield)->edict = PRVM_EDICT_TO_PROG(chain);
1255                 chain = ent;
1256         }
1257
1258         VM_RETURN_EDICT(chain);
1259 }
1260
1261 /*
1262 =========
1263 VM_precache_sound
1264
1265 string  precache_sound (string sample)
1266 =========
1267 */
1268 void VM_precache_sound (void)
1269 {
1270         const char *s;
1271
1272         VM_SAFEPARMCOUNT(1, VM_precache_sound);
1273
1274         s = PRVM_G_STRING(OFS_PARM0);
1275         PRVM_G_INT(OFS_RETURN) = PRVM_G_INT(OFS_PARM0);
1276         //VM_CheckEmptyString(s);
1277
1278         if(snd_initialized.integer && !S_PrecacheSound(s, true, true))
1279         {
1280                 VM_Warning("VM_precache_sound: Failed to load %s for %s\n", s, PRVM_NAME);
1281                 return;
1282         }
1283 }
1284
1285 /*
1286 =================
1287 VM_precache_file
1288
1289 returns the same string as output
1290
1291 does nothing, only used by qcc to build .pak archives
1292 =================
1293 */
1294 void VM_precache_file (void)
1295 {
1296         VM_SAFEPARMCOUNT(1,VM_precache_file);
1297         // precache_file is only used to copy files with qcc, it does nothing
1298         PRVM_G_INT(OFS_RETURN) = PRVM_G_INT(OFS_PARM0);
1299 }
1300
1301 /*
1302 =========
1303 VM_coredump
1304
1305 coredump()
1306 =========
1307 */
1308 void VM_coredump (void)
1309 {
1310         VM_SAFEPARMCOUNT(0,VM_coredump);
1311
1312         Cbuf_AddText("prvm_edicts ");
1313         Cbuf_AddText(PRVM_NAME);
1314         Cbuf_AddText("\n");
1315 }
1316
1317 /*
1318 =========
1319 VM_stackdump
1320
1321 stackdump()
1322 =========
1323 */
1324 void PRVM_StackTrace(void);
1325 void VM_stackdump (void)
1326 {
1327         VM_SAFEPARMCOUNT(0, VM_stackdump);
1328
1329         PRVM_StackTrace();
1330 }
1331
1332 /*
1333 =========
1334 VM_crash
1335
1336 crash()
1337 =========
1338 */
1339
1340 void VM_crash(void)
1341 {
1342         VM_SAFEPARMCOUNT(0, VM_crash);
1343
1344         PRVM_ERROR("Crash called by %s",PRVM_NAME);
1345 }
1346
1347 /*
1348 =========
1349 VM_traceon
1350
1351 traceon()
1352 =========
1353 */
1354 void VM_traceon (void)
1355 {
1356         VM_SAFEPARMCOUNT(0,VM_traceon);
1357
1358         prog->trace = true;
1359 }
1360
1361 /*
1362 =========
1363 VM_traceoff
1364
1365 traceoff()
1366 =========
1367 */
1368 void VM_traceoff (void)
1369 {
1370         VM_SAFEPARMCOUNT(0,VM_traceoff);
1371
1372         prog->trace = false;
1373 }
1374
1375 /*
1376 =========
1377 VM_eprint
1378
1379 eprint(entity e)
1380 =========
1381 */
1382 void VM_eprint (void)
1383 {
1384         VM_SAFEPARMCOUNT(1,VM_eprint);
1385
1386         PRVM_ED_PrintNum (PRVM_G_EDICTNUM(OFS_PARM0), NULL);
1387 }
1388
1389 /*
1390 =========
1391 VM_rint
1392
1393 float   rint(float)
1394 =========
1395 */
1396 void VM_rint (void)
1397 {
1398         float f;
1399         VM_SAFEPARMCOUNT(1,VM_rint);
1400
1401         f = PRVM_G_FLOAT(OFS_PARM0);
1402         if (f > 0)
1403                 PRVM_G_FLOAT(OFS_RETURN) = floor(f + 0.5);
1404         else
1405                 PRVM_G_FLOAT(OFS_RETURN) = ceil(f - 0.5);
1406 }
1407
1408 /*
1409 =========
1410 VM_floor
1411
1412 float   floor(float)
1413 =========
1414 */
1415 void VM_floor (void)
1416 {
1417         VM_SAFEPARMCOUNT(1,VM_floor);
1418
1419         PRVM_G_FLOAT(OFS_RETURN) = floor(PRVM_G_FLOAT(OFS_PARM0));
1420 }
1421
1422 /*
1423 =========
1424 VM_ceil
1425
1426 float   ceil(float)
1427 =========
1428 */
1429 void VM_ceil (void)
1430 {
1431         VM_SAFEPARMCOUNT(1,VM_ceil);
1432
1433         PRVM_G_FLOAT(OFS_RETURN) = ceil(PRVM_G_FLOAT(OFS_PARM0));
1434 }
1435
1436
1437 /*
1438 =============
1439 VM_nextent
1440
1441 entity  nextent(entity)
1442 =============
1443 */
1444 void VM_nextent (void)
1445 {
1446         int             i;
1447         prvm_edict_t    *ent;
1448
1449         VM_SAFEPARMCOUNT(1, VM_nextent);
1450
1451         i = PRVM_G_EDICTNUM(OFS_PARM0);
1452         while (1)
1453         {
1454                 prog->xfunction->builtinsprofile++;
1455                 i++;
1456                 if (i == prog->num_edicts)
1457                 {
1458                         VM_RETURN_EDICT(prog->edicts);
1459                         return;
1460                 }
1461                 ent = PRVM_EDICT_NUM(i);
1462                 if (!ent->priv.required->free)
1463                 {
1464                         VM_RETURN_EDICT(ent);
1465                         return;
1466                 }
1467         }
1468 }
1469
1470 //=============================================================================
1471
1472 /*
1473 ==============
1474 VM_changelevel
1475 server and menu
1476
1477 changelevel(string map)
1478 ==============
1479 */
1480 void VM_changelevel (void)
1481 {
1482         VM_SAFEPARMCOUNT(1, VM_changelevel);
1483
1484         if(!sv.active)
1485         {
1486                 VM_Warning("VM_changelevel: game is not server (%s)\n", PRVM_NAME);
1487                 return;
1488         }
1489
1490 // make sure we don't issue two changelevels
1491         if (svs.changelevel_issued)
1492                 return;
1493         svs.changelevel_issued = true;
1494
1495         Cbuf_AddText (va("changelevel %s\n",PRVM_G_STRING(OFS_PARM0)));
1496 }
1497
1498 /*
1499 =========
1500 VM_sin
1501
1502 float   sin(float)
1503 =========
1504 */
1505 void VM_sin (void)
1506 {
1507         VM_SAFEPARMCOUNT(1,VM_sin);
1508         PRVM_G_FLOAT(OFS_RETURN) = sin(PRVM_G_FLOAT(OFS_PARM0));
1509 }
1510
1511 /*
1512 =========
1513 VM_cos
1514 float   cos(float)
1515 =========
1516 */
1517 void VM_cos (void)
1518 {
1519         VM_SAFEPARMCOUNT(1,VM_cos);
1520         PRVM_G_FLOAT(OFS_RETURN) = cos(PRVM_G_FLOAT(OFS_PARM0));
1521 }
1522
1523 /*
1524 =========
1525 VM_sqrt
1526
1527 float   sqrt(float)
1528 =========
1529 */
1530 void VM_sqrt (void)
1531 {
1532         VM_SAFEPARMCOUNT(1,VM_sqrt);
1533         PRVM_G_FLOAT(OFS_RETURN) = sqrt(PRVM_G_FLOAT(OFS_PARM0));
1534 }
1535
1536 /*
1537 =========
1538 VM_asin
1539
1540 float   asin(float)
1541 =========
1542 */
1543 void VM_asin (void)
1544 {
1545         VM_SAFEPARMCOUNT(1,VM_asin);
1546         PRVM_G_FLOAT(OFS_RETURN) = asin(PRVM_G_FLOAT(OFS_PARM0));
1547 }
1548
1549 /*
1550 =========
1551 VM_acos
1552 float   acos(float)
1553 =========
1554 */
1555 void VM_acos (void)
1556 {
1557         VM_SAFEPARMCOUNT(1,VM_acos);
1558         PRVM_G_FLOAT(OFS_RETURN) = acos(PRVM_G_FLOAT(OFS_PARM0));
1559 }
1560
1561 /*
1562 =========
1563 VM_atan
1564 float   atan(float)
1565 =========
1566 */
1567 void VM_atan (void)
1568 {
1569         VM_SAFEPARMCOUNT(1,VM_atan);
1570         PRVM_G_FLOAT(OFS_RETURN) = atan(PRVM_G_FLOAT(OFS_PARM0));
1571 }
1572
1573 /*
1574 =========
1575 VM_atan2
1576 float   atan2(float,float)
1577 =========
1578 */
1579 void VM_atan2 (void)
1580 {
1581         VM_SAFEPARMCOUNT(2,VM_atan2);
1582         PRVM_G_FLOAT(OFS_RETURN) = atan2(PRVM_G_FLOAT(OFS_PARM0), PRVM_G_FLOAT(OFS_PARM1));
1583 }
1584
1585 /*
1586 =========
1587 VM_tan
1588 float   tan(float)
1589 =========
1590 */
1591 void VM_tan (void)
1592 {
1593         VM_SAFEPARMCOUNT(1,VM_tan);
1594         PRVM_G_FLOAT(OFS_RETURN) = tan(PRVM_G_FLOAT(OFS_PARM0));
1595 }
1596
1597 /*
1598 =================
1599 VM_randomvec
1600
1601 Returns a vector of length < 1 and > 0
1602
1603 vector randomvec()
1604 =================
1605 */
1606 void VM_randomvec (void)
1607 {
1608         vec3_t          temp;
1609         //float         length;
1610
1611         VM_SAFEPARMCOUNT(0, VM_randomvec);
1612
1613         //// WTF ??
1614         do
1615         {
1616                 temp[0] = (rand()&32767) * (2.0 / 32767.0) - 1.0;
1617                 temp[1] = (rand()&32767) * (2.0 / 32767.0) - 1.0;
1618                 temp[2] = (rand()&32767) * (2.0 / 32767.0) - 1.0;
1619         }
1620         while (DotProduct(temp, temp) >= 1);
1621         VectorCopy (temp, PRVM_G_VECTOR(OFS_RETURN));
1622
1623         /*
1624         temp[0] = (rand()&32767) * (2.0 / 32767.0) - 1.0;
1625         temp[1] = (rand()&32767) * (2.0 / 32767.0) - 1.0;
1626         temp[2] = (rand()&32767) * (2.0 / 32767.0) - 1.0;
1627         // length returned always > 0
1628         length = (rand()&32766 + 1) * (1.0 / 32767.0) / VectorLength(temp);
1629         VectorScale(temp,length, temp);*/
1630         //VectorCopy(temp, PRVM_G_VECTOR(OFS_RETURN));
1631 }
1632
1633 //=============================================================================
1634
1635 /*
1636 =========
1637 VM_registercvar
1638
1639 float   registercvar (string name, string value[, float flags])
1640 =========
1641 */
1642 void VM_registercvar (void)
1643 {
1644         const char *name, *value;
1645         int     flags;
1646
1647         VM_SAFEPARMCOUNTRANGE(2, 3, VM_registercvar);
1648
1649         name = PRVM_G_STRING(OFS_PARM0);
1650         value = PRVM_G_STRING(OFS_PARM1);
1651         flags = prog->argc >= 3 ? (int)PRVM_G_FLOAT(OFS_PARM2) : 0;
1652         PRVM_G_FLOAT(OFS_RETURN) = 0;
1653
1654         if(flags > CVAR_MAXFLAGSVAL)
1655                 return;
1656
1657 // first check to see if it has already been defined
1658         if (Cvar_FindVar (name))
1659                 return;
1660
1661 // check for overlap with a command
1662         if (Cmd_Exists (name))
1663         {
1664                 VM_Warning("VM_registercvar: %s is a command\n", name);
1665                 return;
1666         }
1667
1668         Cvar_Get(name, value, flags, NULL);
1669
1670         PRVM_G_FLOAT(OFS_RETURN) = 1; // success
1671 }
1672
1673
1674 /*
1675 =================
1676 VM_min
1677
1678 returns the minimum of two supplied floats
1679
1680 float min(float a, float b, ...[float])
1681 =================
1682 */
1683 void VM_min (void)
1684 {
1685         VM_SAFEPARMCOUNTRANGE(2, 8, VM_min);
1686         // LordHavoc: 3+ argument enhancement suggested by FrikaC
1687         if (prog->argc >= 3)
1688         {
1689                 int i;
1690                 float f = PRVM_G_FLOAT(OFS_PARM0);
1691                 for (i = 1;i < prog->argc;i++)
1692                         if (f > PRVM_G_FLOAT((OFS_PARM0+i*3)))
1693                                 f = PRVM_G_FLOAT((OFS_PARM0+i*3));
1694                 PRVM_G_FLOAT(OFS_RETURN) = f;
1695         }
1696         else
1697                 PRVM_G_FLOAT(OFS_RETURN) = min(PRVM_G_FLOAT(OFS_PARM0), PRVM_G_FLOAT(OFS_PARM1));
1698 }
1699
1700 /*
1701 =================
1702 VM_max
1703
1704 returns the maximum of two supplied floats
1705
1706 float   max(float a, float b, ...[float])
1707 =================
1708 */
1709 void VM_max (void)
1710 {
1711         VM_SAFEPARMCOUNTRANGE(2, 8, VM_max);
1712         // LordHavoc: 3+ argument enhancement suggested by FrikaC
1713         if (prog->argc >= 3)
1714         {
1715                 int i;
1716                 float f = PRVM_G_FLOAT(OFS_PARM0);
1717                 for (i = 1;i < prog->argc;i++)
1718                         if (f < PRVM_G_FLOAT((OFS_PARM0+i*3)))
1719                                 f = PRVM_G_FLOAT((OFS_PARM0+i*3));
1720                 PRVM_G_FLOAT(OFS_RETURN) = f;
1721         }
1722         else
1723                 PRVM_G_FLOAT(OFS_RETURN) = max(PRVM_G_FLOAT(OFS_PARM0), PRVM_G_FLOAT(OFS_PARM1));
1724 }
1725
1726 /*
1727 =================
1728 VM_bound
1729
1730 returns number bounded by supplied range
1731
1732 float   bound(float min, float value, float max)
1733 =================
1734 */
1735 void VM_bound (void)
1736 {
1737         VM_SAFEPARMCOUNT(3,VM_bound);
1738         PRVM_G_FLOAT(OFS_RETURN) = bound(PRVM_G_FLOAT(OFS_PARM0), PRVM_G_FLOAT(OFS_PARM1), PRVM_G_FLOAT(OFS_PARM2));
1739 }
1740
1741 /*
1742 =================
1743 VM_pow
1744
1745 returns a raised to power b
1746
1747 float   pow(float a, float b)
1748 =================
1749 */
1750 void VM_pow (void)
1751 {
1752         VM_SAFEPARMCOUNT(2,VM_pow);
1753         PRVM_G_FLOAT(OFS_RETURN) = pow(PRVM_G_FLOAT(OFS_PARM0), PRVM_G_FLOAT(OFS_PARM1));
1754 }
1755
1756 void VM_log (void)
1757 {
1758         VM_SAFEPARMCOUNT(1,VM_log);
1759         PRVM_G_FLOAT(OFS_RETURN) = log(PRVM_G_FLOAT(OFS_PARM0));
1760 }
1761
1762 void VM_Files_Init(void)
1763 {
1764         int i;
1765         for (i = 0;i < PRVM_MAX_OPENFILES;i++)
1766                 prog->openfiles[i] = NULL;
1767 }
1768
1769 void VM_Files_CloseAll(void)
1770 {
1771         int i;
1772         for (i = 0;i < PRVM_MAX_OPENFILES;i++)
1773         {
1774                 if (prog->openfiles[i])
1775                         FS_Close(prog->openfiles[i]);
1776                 prog->openfiles[i] = NULL;
1777         }
1778 }
1779
1780 static qfile_t *VM_GetFileHandle( int index )
1781 {
1782         if (index < 0 || index >= PRVM_MAX_OPENFILES)
1783         {
1784                 Con_Printf("VM_GetFileHandle: invalid file handle %i used in %s\n", index, PRVM_NAME);
1785                 return NULL;
1786         }
1787         if (prog->openfiles[index] == NULL)
1788         {
1789                 Con_Printf("VM_GetFileHandle: no such file handle %i (or file has been closed) in %s\n", index, PRVM_NAME);
1790                 return NULL;
1791         }
1792         return prog->openfiles[index];
1793 }
1794
1795 /*
1796 =========
1797 VM_fopen
1798
1799 float   fopen(string filename, float mode)
1800 =========
1801 */
1802 // float(string filename, float mode) fopen = #110;
1803 // opens a file inside quake/gamedir/data/ (mode is FILE_READ, FILE_APPEND, or FILE_WRITE),
1804 // returns fhandle >= 0 if successful, or fhandle < 0 if unable to open file for any reason
1805 void VM_fopen(void)
1806 {
1807         int filenum, mode;
1808         const char *modestring, *filename;
1809
1810         VM_SAFEPARMCOUNT(2,VM_fopen);
1811
1812         for (filenum = 0;filenum < PRVM_MAX_OPENFILES;filenum++)
1813                 if (prog->openfiles[filenum] == NULL)
1814                         break;
1815         if (filenum >= PRVM_MAX_OPENFILES)
1816         {
1817                 PRVM_G_FLOAT(OFS_RETURN) = -2;
1818                 VM_Warning("VM_fopen: %s ran out of file handles (%i)\n", PRVM_NAME, PRVM_MAX_OPENFILES);
1819                 return;
1820         }
1821         filename = PRVM_G_STRING(OFS_PARM0);
1822         mode = (int)PRVM_G_FLOAT(OFS_PARM1);
1823         switch(mode)
1824         {
1825         case 0: // FILE_READ
1826                 modestring = "rb";
1827                 prog->openfiles[filenum] = FS_OpenVirtualFile(va("data/%s", filename), false);
1828                 if (prog->openfiles[filenum] == NULL)
1829                         prog->openfiles[filenum] = FS_OpenVirtualFile(va("%s", filename), false);
1830                 break;
1831         case 1: // FILE_APPEND
1832                 modestring = "a";
1833                 prog->openfiles[filenum] = FS_OpenRealFile(va("data/%s", filename), modestring, false);
1834                 break;
1835         case 2: // FILE_WRITE
1836                 modestring = "w";
1837                 prog->openfiles[filenum] = FS_OpenRealFile(va("data/%s", filename), modestring, false);
1838                 break;
1839         default:
1840                 PRVM_G_FLOAT(OFS_RETURN) = -3;
1841                 VM_Warning("VM_fopen: %s: no such mode %i (valid: 0 = read, 1 = append, 2 = write)\n", PRVM_NAME, mode);
1842                 return;
1843         }
1844
1845         if (prog->openfiles[filenum] == NULL)
1846         {
1847                 PRVM_G_FLOAT(OFS_RETURN) = -1;
1848                 if (developer.integer >= 100)
1849                         VM_Warning("VM_fopen: %s: %s mode %s failed\n", PRVM_NAME, filename, modestring);
1850         }
1851         else
1852         {
1853                 PRVM_G_FLOAT(OFS_RETURN) = filenum;
1854                 if (developer.integer >= 100)
1855                         Con_Printf("VM_fopen: %s: %s mode %s opened as #%i\n", PRVM_NAME, filename, modestring, filenum);
1856                 prog->openfiles_origin[filenum] = PRVM_AllocationOrigin();
1857         }
1858 }
1859
1860 /*
1861 =========
1862 VM_fclose
1863
1864 fclose(float fhandle)
1865 =========
1866 */
1867 //void(float fhandle) fclose = #111; // closes a file
1868 void VM_fclose(void)
1869 {
1870         int filenum;
1871
1872         VM_SAFEPARMCOUNT(1,VM_fclose);
1873
1874         filenum = (int)PRVM_G_FLOAT(OFS_PARM0);
1875         if (filenum < 0 || filenum >= PRVM_MAX_OPENFILES)
1876         {
1877                 VM_Warning("VM_fclose: invalid file handle %i used in %s\n", filenum, PRVM_NAME);
1878                 return;
1879         }
1880         if (prog->openfiles[filenum] == NULL)
1881         {
1882                 VM_Warning("VM_fclose: no such file handle %i (or file has been closed) in %s\n", filenum, PRVM_NAME);
1883                 return;
1884         }
1885         FS_Close(prog->openfiles[filenum]);
1886         prog->openfiles[filenum] = NULL;
1887         if(prog->openfiles_origin[filenum])
1888                 PRVM_Free((char *)prog->openfiles_origin[filenum]);
1889         if (developer.integer >= 100)
1890                 Con_Printf("VM_fclose: %s: #%i closed\n", PRVM_NAME, filenum);
1891 }
1892
1893 /*
1894 =========
1895 VM_fgets
1896
1897 string  fgets(float fhandle)
1898 =========
1899 */
1900 //string(float fhandle) fgets = #112; // reads a line of text from the file and returns as a tempstring
1901 void VM_fgets(void)
1902 {
1903         int c, end;
1904         char string[VM_STRINGTEMP_LENGTH];
1905         int filenum;
1906
1907         VM_SAFEPARMCOUNT(1,VM_fgets);
1908
1909         // set the return value regardless of any possible errors
1910         PRVM_G_INT(OFS_RETURN) = OFS_NULL;
1911
1912         filenum = (int)PRVM_G_FLOAT(OFS_PARM0);
1913         if (filenum < 0 || filenum >= PRVM_MAX_OPENFILES)
1914         {
1915                 VM_Warning("VM_fgets: invalid file handle %i used in %s\n", filenum, PRVM_NAME);
1916                 return;
1917         }
1918         if (prog->openfiles[filenum] == NULL)
1919         {
1920                 VM_Warning("VM_fgets: no such file handle %i (or file has been closed) in %s\n", filenum, PRVM_NAME);
1921                 return;
1922         }
1923         end = 0;
1924         for (;;)
1925         {
1926                 c = FS_Getc(prog->openfiles[filenum]);
1927                 if (c == '\r' || c == '\n' || c < 0)
1928                         break;
1929                 if (end < VM_STRINGTEMP_LENGTH - 1)
1930                         string[end++] = c;
1931         }
1932         string[end] = 0;
1933         // remove \n following \r
1934         if (c == '\r')
1935         {
1936                 c = FS_Getc(prog->openfiles[filenum]);
1937                 if (c != '\n')
1938                         FS_UnGetc(prog->openfiles[filenum], (unsigned char)c);
1939         }
1940         if (developer.integer >= 100)
1941                 Con_Printf("fgets: %s: %s\n", PRVM_NAME, string);
1942         if (c >= 0 || end)
1943                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
1944 }
1945
1946 /*
1947 =========
1948 VM_fputs
1949
1950 fputs(float fhandle, string s)
1951 =========
1952 */
1953 //void(float fhandle, string s) fputs = #113; // writes a line of text to the end of the file
1954 void VM_fputs(void)
1955 {
1956         int stringlength;
1957         char string[VM_STRINGTEMP_LENGTH];
1958         int filenum;
1959
1960         VM_SAFEPARMCOUNT(2,VM_fputs);
1961
1962         filenum = (int)PRVM_G_FLOAT(OFS_PARM0);
1963         if (filenum < 0 || filenum >= PRVM_MAX_OPENFILES)
1964         {
1965                 VM_Warning("VM_fputs: invalid file handle %i used in %s\n", filenum, PRVM_NAME);
1966                 return;
1967         }
1968         if (prog->openfiles[filenum] == NULL)
1969         {
1970                 VM_Warning("VM_fputs: no such file handle %i (or file has been closed) in %s\n", filenum, PRVM_NAME);
1971                 return;
1972         }
1973         VM_VarString(1, string, sizeof(string));
1974         if ((stringlength = (int)strlen(string)))
1975                 FS_Write(prog->openfiles[filenum], string, stringlength);
1976         if (developer.integer >= 100)
1977                 Con_Printf("fputs: %s: %s\n", PRVM_NAME, string);
1978 }
1979
1980 /*
1981 =========
1982 VM_writetofile
1983
1984         writetofile(float fhandle, entity ent)
1985 =========
1986 */
1987 void VM_writetofile(void)
1988 {
1989         prvm_edict_t * ent;
1990         qfile_t *file;
1991
1992         VM_SAFEPARMCOUNT(2, VM_writetofile);
1993
1994         file = VM_GetFileHandle( (int)PRVM_G_FLOAT(OFS_PARM0) );
1995         if( !file )
1996         {
1997                 VM_Warning("VM_writetofile: invalid or closed file handle\n");
1998                 return;
1999         }
2000
2001         ent = PRVM_G_EDICT(OFS_PARM1);
2002         if(ent->priv.required->free)
2003         {
2004                 VM_Warning("VM_writetofile: %s: entity %i is free !\n", PRVM_NAME, PRVM_NUM_FOR_EDICT(ent));
2005                 return;
2006         }
2007
2008         PRVM_ED_Write (file, ent);
2009 }
2010
2011 // KrimZon - DP_QC_ENTITYDATA
2012 /*
2013 =========
2014 VM_numentityfields
2015
2016 float() numentityfields
2017 Return the number of entity fields - NOT offsets
2018 =========
2019 */
2020 void VM_numentityfields(void)
2021 {
2022         PRVM_G_FLOAT(OFS_RETURN) = prog->progs->numfielddefs;
2023 }
2024
2025 // KrimZon - DP_QC_ENTITYDATA
2026 /*
2027 =========
2028 VM_entityfieldname
2029
2030 string(float fieldnum) entityfieldname
2031 Return name of the specified field as a string, or empty if the field is invalid (warning)
2032 =========
2033 */
2034 void VM_entityfieldname(void)
2035 {
2036         ddef_t *d;
2037         int i = (int)PRVM_G_FLOAT(OFS_PARM0);
2038         
2039         if (i < 0 || i >= prog->progs->numfielddefs)
2040         {
2041         VM_Warning("VM_entityfieldname: %s: field index out of bounds\n", PRVM_NAME);
2042         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
2043                 return;
2044         }
2045         
2046         d = &prog->fielddefs[i];
2047         PRVM_G_INT(OFS_RETURN) = d->s_name; // presuming that s_name points to a string already
2048 }
2049
2050 // KrimZon - DP_QC_ENTITYDATA
2051 /*
2052 =========
2053 VM_entityfieldtype
2054
2055 float(float fieldnum) entityfieldtype
2056 =========
2057 */
2058 void VM_entityfieldtype(void)
2059 {
2060         ddef_t *d;
2061         int i = (int)PRVM_G_FLOAT(OFS_PARM0);
2062         
2063         if (i < 0 || i >= prog->progs->numfielddefs)
2064         {
2065                 VM_Warning("VM_entityfieldtype: %s: field index out of bounds\n", PRVM_NAME);
2066                 PRVM_G_FLOAT(OFS_RETURN) = -1.0;
2067                 return;
2068         }
2069         
2070         d = &prog->fielddefs[i];
2071         PRVM_G_FLOAT(OFS_RETURN) = (float)d->type;
2072 }
2073
2074 // KrimZon - DP_QC_ENTITYDATA
2075 /*
2076 =========
2077 VM_getentityfieldstring
2078
2079 string(float fieldnum, entity ent) getentityfieldstring
2080 =========
2081 */
2082 void VM_getentityfieldstring(void)
2083 {
2084         // put the data into a string
2085         ddef_t *d;
2086         int type, j;
2087         int *v;
2088         prvm_edict_t * ent;
2089         int i = (int)PRVM_G_FLOAT(OFS_PARM0);
2090         
2091         if (i < 0 || i >= prog->progs->numfielddefs)
2092         {
2093         VM_Warning("VM_entityfielddata: %s: field index out of bounds\n", PRVM_NAME);
2094                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
2095                 return;
2096         }
2097         
2098         d = &prog->fielddefs[i];
2099         
2100         // get the entity
2101         ent = PRVM_G_EDICT(OFS_PARM1);
2102         if(ent->priv.required->free)
2103         {
2104                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
2105                 VM_Warning("VM_entityfielddata: %s: entity %i is free !\n", PRVM_NAME, PRVM_NUM_FOR_EDICT(ent));
2106                 return;
2107         }
2108         v = (int *)((char *)ent->fields.vp + d->ofs*4);
2109         
2110         // if it's 0 or blank, return an empty string
2111         type = d->type & ~DEF_SAVEGLOBAL;
2112         for (j=0 ; j<prvm_type_size[type] ; j++)
2113                 if (v[j])
2114                         break;
2115         if (j == prvm_type_size[type])
2116         {
2117                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
2118                 return;
2119         }
2120                 
2121         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(PRVM_UglyValueString((etype_t)d->type, (prvm_eval_t *)v));
2122 }
2123
2124 // KrimZon - DP_QC_ENTITYDATA
2125 /*
2126 =========
2127 VM_putentityfieldstring
2128
2129 float(float fieldnum, entity ent, string s) putentityfieldstring
2130 =========
2131 */
2132 void VM_putentityfieldstring(void)
2133 {
2134         ddef_t *d;
2135         prvm_edict_t * ent;
2136         int i = (int)PRVM_G_FLOAT(OFS_PARM0);
2137
2138         if (i < 0 || i >= prog->progs->numfielddefs)
2139         {
2140         VM_Warning("VM_entityfielddata: %s: field index out of bounds\n", PRVM_NAME);
2141                 PRVM_G_FLOAT(OFS_RETURN) = 0.0f;
2142                 return;
2143         }
2144
2145         d = &prog->fielddefs[i];
2146
2147         // get the entity
2148         ent = PRVM_G_EDICT(OFS_PARM1);
2149         if(ent->priv.required->free)
2150         {
2151                 VM_Warning("VM_entityfielddata: %s: entity %i is free !\n", PRVM_NAME, PRVM_NUM_FOR_EDICT(ent));
2152                 PRVM_G_FLOAT(OFS_RETURN) = 0.0f;
2153                 return;
2154         }
2155
2156         // parse the string into the value
2157         PRVM_G_FLOAT(OFS_RETURN) = ( PRVM_ED_ParseEpair(ent, d, PRVM_G_STRING(OFS_PARM2), false) ) ? 1.0f : 0.0f;
2158 }
2159
2160 /*
2161 =========
2162 VM_strlen
2163
2164 float   strlen(string s)
2165 =========
2166 */
2167 //float(string s) strlen = #114; // returns how many characters are in a string
2168 void VM_strlen(void)
2169 {
2170         VM_SAFEPARMCOUNT(1,VM_strlen);
2171
2172         //PRVM_G_FLOAT(OFS_RETURN) = strlen(PRVM_G_STRING(OFS_PARM0));
2173         PRVM_G_FLOAT(OFS_RETURN) = u8_strlen(PRVM_G_STRING(OFS_PARM0));
2174 }
2175
2176 // DRESK - Decolorized String
2177 /*
2178 =========
2179 VM_strdecolorize
2180
2181 string  strdecolorize(string s)
2182 =========
2183 */
2184 // string (string s) strdecolorize = #472; // returns the passed in string with color codes stripped
2185 void VM_strdecolorize(void)
2186 {
2187         char szNewString[VM_STRINGTEMP_LENGTH];
2188         const char *szString;
2189
2190         // Prepare Strings
2191         VM_SAFEPARMCOUNT(1,VM_strdecolorize);
2192         szString = PRVM_G_STRING(OFS_PARM0);
2193         COM_StringDecolorize(szString, 0, szNewString, sizeof(szNewString), TRUE);
2194         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(szNewString);
2195 }
2196
2197 // DRESK - String Length (not counting color codes)
2198 /*
2199 =========
2200 VM_strlennocol
2201
2202 float   strlennocol(string s)
2203 =========
2204 */
2205 // float(string s) strlennocol = #471; // returns how many characters are in a string not including color codes
2206 // For example, ^2Dresk returns a length of 5
2207 void VM_strlennocol(void)
2208 {
2209         const char *szString;
2210         int nCnt;
2211
2212         VM_SAFEPARMCOUNT(1,VM_strlennocol);
2213
2214         szString = PRVM_G_STRING(OFS_PARM0);
2215
2216         //nCnt = COM_StringLengthNoColors(szString, 0, NULL);
2217         nCnt = u8_COM_StringLengthNoColors(szString, 0, NULL);
2218
2219         PRVM_G_FLOAT(OFS_RETURN) = nCnt;
2220 }
2221
2222 // DRESK - String to Uppercase and Lowercase
2223 /*
2224 =========
2225 VM_strtolower
2226
2227 string  strtolower(string s)
2228 =========
2229 */
2230 // string (string s) strtolower = #480; // returns passed in string in lowercase form
2231 void VM_strtolower(void)
2232 {
2233         char szNewString[VM_STRINGTEMP_LENGTH];
2234         const char *szString;
2235
2236         // Prepare Strings
2237         VM_SAFEPARMCOUNT(1,VM_strtolower);
2238         szString = PRVM_G_STRING(OFS_PARM0);
2239
2240         COM_ToLowerString(szString, szNewString, sizeof(szNewString) );
2241
2242         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(szNewString);
2243 }
2244
2245 /*
2246 =========
2247 VM_strtoupper
2248
2249 string  strtoupper(string s)
2250 =========
2251 */
2252 // string (string s) strtoupper = #481; // returns passed in string in uppercase form
2253 void VM_strtoupper(void)
2254 {
2255         char szNewString[VM_STRINGTEMP_LENGTH];
2256         const char *szString;
2257
2258         // Prepare Strings
2259         VM_SAFEPARMCOUNT(1,VM_strtoupper);
2260         szString = PRVM_G_STRING(OFS_PARM0);
2261
2262         COM_ToUpperString(szString, szNewString, sizeof(szNewString) );
2263
2264         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(szNewString);
2265 }
2266
2267 /*
2268 =========
2269 VM_strcat
2270
2271 string strcat(string,string,...[string])
2272 =========
2273 */
2274 //string(string s1, string s2) strcat = #115;
2275 // concatenates two strings (for example "abc", "def" would return "abcdef")
2276 // and returns as a tempstring
2277 void VM_strcat(void)
2278 {
2279         char s[VM_STRINGTEMP_LENGTH];
2280         VM_SAFEPARMCOUNTRANGE(1, 8, VM_strcat);
2281
2282         VM_VarString(0, s, sizeof(s));
2283         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(s);
2284 }
2285
2286 /*
2287 =========
2288 VM_substring
2289
2290 string  substring(string s, float start, float length)
2291 =========
2292 */
2293 // string(string s, float start, float length) substring = #116;
2294 // returns a section of a string as a tempstring
2295 void VM_substring(void)
2296 {
2297         int start, length;
2298         int u_slength = 0, u_start;
2299         size_t u_length;
2300         const char *s;
2301         char string[VM_STRINGTEMP_LENGTH];
2302
2303         VM_SAFEPARMCOUNT(3,VM_substring);
2304
2305         /*
2306         s = PRVM_G_STRING(OFS_PARM0);
2307         start = (int)PRVM_G_FLOAT(OFS_PARM1);
2308         length = (int)PRVM_G_FLOAT(OFS_PARM2);
2309         slength = strlen(s);
2310
2311         if (start < 0) // FTE_STRINGS feature
2312                 start += slength;
2313         start = bound(0, start, slength);
2314
2315         if (length < 0) // FTE_STRINGS feature
2316                 length += slength - start + 1;
2317         maxlen = min((int)sizeof(string) - 1, slength - start);
2318         length = bound(0, length, maxlen);
2319
2320         memcpy(string, s + start, length);
2321         string[length] = 0;
2322         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
2323         */
2324         
2325         s = PRVM_G_STRING(OFS_PARM0);
2326         start = (int)PRVM_G_FLOAT(OFS_PARM1);
2327         length = (int)PRVM_G_FLOAT(OFS_PARM2);
2328
2329         if (start < 0) // FTE_STRINGS feature
2330         {
2331                 u_slength = u8_strlen(s);
2332                 start += u_slength;
2333                 start = bound(0, start, u_slength);
2334         }
2335
2336         if (length < 0) // FTE_STRINGS feature
2337         {
2338                 if (!u_slength) // it's not calculated when it's not needed above
2339                         u_slength = u8_strlen(s);
2340                 length += u_slength - start + 1;
2341         }
2342                 
2343         // positive start, positive length
2344         u_start = u8_byteofs(s, start, NULL);
2345         if (u_start < 0)
2346         {
2347                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
2348                 return;
2349         }
2350         u_length = u8_bytelen(s + u_start, length);
2351         if (u_length >= sizeof(string)-1)
2352                 u_length = sizeof(string)-1;
2353         
2354         memcpy(string, s + u_start, u_length);
2355         string[u_length] = 0;
2356         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
2357 }
2358
2359 /*
2360 =========
2361 VM_strreplace
2362
2363 string(string search, string replace, string subject) strreplace = #484;
2364 =========
2365 */
2366 // replaces all occurrences of search with replace in the string subject, and returns the result
2367 void VM_strreplace(void)
2368 {
2369         int i, j, si;
2370         const char *search, *replace, *subject;
2371         char string[VM_STRINGTEMP_LENGTH];
2372         int search_len, replace_len, subject_len;
2373
2374         VM_SAFEPARMCOUNT(3,VM_strreplace);
2375
2376         search = PRVM_G_STRING(OFS_PARM0);
2377         replace = PRVM_G_STRING(OFS_PARM1);
2378         subject = PRVM_G_STRING(OFS_PARM2);
2379
2380         search_len = (int)strlen(search);
2381         replace_len = (int)strlen(replace);
2382         subject_len = (int)strlen(subject);
2383
2384         si = 0;
2385         for (i = 0; i < subject_len; i++)
2386         {
2387                 for (j = 0; j < search_len && i+j < subject_len; j++)
2388                         if (subject[i+j] != search[j])
2389                                 break;
2390                 if (j == search_len || i+j == subject_len)
2391                 {
2392                 // found it at offset 'i'
2393                         for (j = 0; j < replace_len && si < (int)sizeof(string) - 1; j++)
2394                                 string[si++] = replace[j];
2395                         i += search_len - 1;
2396                 }
2397                 else
2398                 {
2399                 // not found
2400                         if (si < (int)sizeof(string) - 1)
2401                                 string[si++] = subject[i];
2402                 }
2403         }
2404         string[si] = '\0';
2405
2406         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
2407 }
2408
2409 /*
2410 =========
2411 VM_strireplace
2412
2413 string(string search, string replace, string subject) strireplace = #485;
2414 =========
2415 */
2416 // case-insensitive version of strreplace
2417 void VM_strireplace(void)
2418 {
2419         int i, j, si;
2420         const char *search, *replace, *subject;
2421         char string[VM_STRINGTEMP_LENGTH];
2422         int search_len, replace_len, subject_len;
2423
2424         VM_SAFEPARMCOUNT(3,VM_strreplace);
2425
2426         search = PRVM_G_STRING(OFS_PARM0);
2427         replace = PRVM_G_STRING(OFS_PARM1);
2428         subject = PRVM_G_STRING(OFS_PARM2);
2429
2430         search_len = (int)strlen(search);
2431         replace_len = (int)strlen(replace);
2432         subject_len = (int)strlen(subject);
2433
2434         si = 0;
2435         for (i = 0; i < subject_len; i++)
2436         {
2437                 for (j = 0; j < search_len && i+j < subject_len; j++)
2438                         if (tolower(subject[i+j]) != tolower(search[j]))
2439                                 break;
2440                 if (j == search_len || i+j == subject_len)
2441                 {
2442                 // found it at offset 'i'
2443                         for (j = 0; j < replace_len && si < (int)sizeof(string) - 1; j++)
2444                                 string[si++] = replace[j];
2445                         i += search_len - 1;
2446                 }
2447                 else
2448                 {
2449                 // not found
2450                         if (si < (int)sizeof(string) - 1)
2451                                 string[si++] = subject[i];
2452                 }
2453         }
2454         string[si] = '\0';
2455
2456         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
2457 }
2458
2459 /*
2460 =========
2461 VM_stov
2462
2463 vector  stov(string s)
2464 =========
2465 */
2466 //vector(string s) stov = #117; // returns vector value from a string
2467 void VM_stov(void)
2468 {
2469         char string[VM_STRINGTEMP_LENGTH];
2470
2471         VM_SAFEPARMCOUNT(1,VM_stov);
2472
2473         VM_VarString(0, string, sizeof(string));
2474         Math_atov(string, PRVM_G_VECTOR(OFS_RETURN));
2475 }
2476
2477 /*
2478 =========
2479 VM_strzone
2480
2481 string  strzone(string s)
2482 =========
2483 */
2484 //string(string s, ...) strzone = #118; // makes a copy of a string into the string zone and returns it, this is often used to keep around a tempstring for longer periods of time (tempstrings are replaced often)
2485 void VM_strzone(void)
2486 {
2487         char *out;
2488         char string[VM_STRINGTEMP_LENGTH];
2489         size_t alloclen;
2490
2491         VM_SAFEPARMCOUNT(1,VM_strzone);
2492
2493         VM_VarString(0, string, sizeof(string));
2494         alloclen = strlen(string) + 1;
2495         PRVM_G_INT(OFS_RETURN) = PRVM_AllocString(alloclen, &out);
2496         memcpy(out, string, alloclen);
2497 }
2498
2499 /*
2500 =========
2501 VM_strunzone
2502
2503 strunzone(string s)
2504 =========
2505 */
2506 //void(string s) strunzone = #119; // removes a copy of a string from the string zone (you can not use that string again or it may crash!!!)
2507 void VM_strunzone(void)
2508 {
2509         VM_SAFEPARMCOUNT(1,VM_strunzone);
2510         PRVM_FreeString(PRVM_G_INT(OFS_PARM0));
2511 }
2512
2513 /*
2514 =========
2515 VM_command (used by client and menu)
2516
2517 clientcommand(float client, string s) (for client and menu)
2518 =========
2519 */
2520 //void(entity e, string s) clientcommand = #440; // executes a command string as if it came from the specified client
2521 //this function originally written by KrimZon, made shorter by LordHavoc
2522 void VM_clcommand (void)
2523 {
2524         client_t *temp_client;
2525         int i;
2526
2527         VM_SAFEPARMCOUNT(2,VM_clcommand);
2528
2529         i = (int)PRVM_G_FLOAT(OFS_PARM0);
2530         if (!sv.active  || i < 0 || i >= svs.maxclients || !svs.clients[i].active)
2531         {
2532                 VM_Warning("VM_clientcommand: %s: invalid client/server is not active !\n", PRVM_NAME);
2533                 return;
2534         }
2535
2536         temp_client = host_client;
2537         host_client = svs.clients + i;
2538         Cmd_ExecuteString (PRVM_G_STRING(OFS_PARM1), src_client);
2539         host_client = temp_client;
2540 }
2541
2542
2543 /*
2544 =========
2545 VM_tokenize
2546
2547 float tokenize(string s)
2548 =========
2549 */
2550 //float(string s) tokenize = #441; // takes apart a string into individal words (access them with argv), returns how many
2551 //this function originally written by KrimZon, made shorter by LordHavoc
2552 //20040203: rewritten by LordHavoc (no longer uses allocations)
2553 static int num_tokens = 0;
2554 static int tokens[VM_STRINGTEMP_LENGTH / 2];
2555 static int tokens_startpos[VM_STRINGTEMP_LENGTH / 2];
2556 static int tokens_endpos[VM_STRINGTEMP_LENGTH / 2];
2557 static char tokenize_string[VM_STRINGTEMP_LENGTH];
2558 void VM_tokenize (void)
2559 {
2560         const char *p;
2561
2562         VM_SAFEPARMCOUNT(1,VM_tokenize);
2563
2564         strlcpy(tokenize_string, PRVM_G_STRING(OFS_PARM0), sizeof(tokenize_string));
2565         p = tokenize_string;
2566
2567         num_tokens = 0;
2568         for(;;)
2569         {
2570                 if (num_tokens >= (int)(sizeof(tokens)/sizeof(tokens[0])))
2571                         break;
2572
2573                 // skip whitespace here to find token start pos
2574                 while(*p && ISWHITESPACE(*p))
2575                         ++p;
2576
2577                 tokens_startpos[num_tokens] = p - tokenize_string;
2578                 if(!COM_ParseToken_VM_Tokenize(&p, false))
2579                         break;
2580                 tokens_endpos[num_tokens] = p - tokenize_string;
2581                 tokens[num_tokens] = PRVM_SetTempString(com_token);
2582                 ++num_tokens;
2583         }
2584
2585         PRVM_G_FLOAT(OFS_RETURN) = num_tokens;
2586 }
2587
2588 //float(string s) tokenize = #514; // takes apart a string into individal words (access them with argv), returns how many
2589 void VM_tokenize_console (void)
2590 {
2591         const char *p;
2592
2593         VM_SAFEPARMCOUNT(1,VM_tokenize);
2594
2595         strlcpy(tokenize_string, PRVM_G_STRING(OFS_PARM0), sizeof(tokenize_string));
2596         p = tokenize_string;
2597
2598         num_tokens = 0;
2599         for(;;)
2600         {
2601                 if (num_tokens >= (int)(sizeof(tokens)/sizeof(tokens[0])))
2602                         break;
2603
2604                 // skip whitespace here to find token start pos
2605                 while(*p && ISWHITESPACE(*p))
2606                         ++p;
2607
2608                 tokens_startpos[num_tokens] = p - tokenize_string;
2609                 if(!COM_ParseToken_Console(&p))
2610                         break;
2611                 tokens_endpos[num_tokens] = p - tokenize_string;
2612                 tokens[num_tokens] = PRVM_SetTempString(com_token);
2613                 ++num_tokens;
2614         }
2615
2616         PRVM_G_FLOAT(OFS_RETURN) = num_tokens;
2617 }
2618
2619 /*
2620 =========
2621 VM_tokenizebyseparator
2622
2623 float tokenizebyseparator(string s, string separator1, ...)
2624 =========
2625 */
2626 //float(string s, string separator1, ...) tokenizebyseparator = #479; // takes apart a string into individal words (access them with argv), returns how many
2627 //this function returns the token preceding each instance of a separator (of
2628 //which there can be multiple), and the text following the last separator
2629 //useful for parsing certain kinds of data like IP addresses
2630 //example:
2631 //numnumbers = tokenizebyseparator("10.1.2.3", ".");
2632 //returns 4 and the tokens "10" "1" "2" "3".
2633 void VM_tokenizebyseparator (void)
2634 {
2635         int j, k;
2636         int numseparators;
2637         int separatorlen[7];
2638         const char *separators[7];
2639         const char *p, *p0;
2640         const char *token;
2641         char tokentext[MAX_INPUTLINE];
2642
2643         VM_SAFEPARMCOUNTRANGE(2, 8,VM_tokenizebyseparator);
2644
2645         strlcpy(tokenize_string, PRVM_G_STRING(OFS_PARM0), sizeof(tokenize_string));
2646         p = tokenize_string;
2647
2648         numseparators = 0;
2649         for (j = 1;j < prog->argc;j++)
2650         {
2651                 // skip any blank separator strings
2652                 const char *s = PRVM_G_STRING(OFS_PARM0+j*3);
2653                 if (!s[0])
2654                         continue;
2655                 separators[numseparators] = s;
2656                 separatorlen[numseparators] = strlen(s);
2657                 numseparators++;
2658         }
2659
2660         num_tokens = 0;
2661         j = 0;
2662
2663         while (num_tokens < (int)(sizeof(tokens)/sizeof(tokens[0])))
2664         {
2665                 token = tokentext + j;
2666                 tokens_startpos[num_tokens] = p - tokenize_string;
2667                 p0 = p;
2668                 while (*p)
2669                 {
2670                         for (k = 0;k < numseparators;k++)
2671                         {
2672                                 if (!strncmp(p, separators[k], separatorlen[k]))
2673                                 {
2674                                         p += separatorlen[k];
2675                                         break;
2676                                 }
2677                         }
2678                         if (k < numseparators)
2679                                 break;
2680                         if (j < (int)sizeof(tokentext)-1)
2681                                 tokentext[j++] = *p;
2682                         p++;
2683                         p0 = p;
2684                 }
2685                 tokens_endpos[num_tokens] = p0 - tokenize_string;
2686                 if (j >= (int)sizeof(tokentext))
2687                         break;
2688                 tokentext[j++] = 0;
2689                 tokens[num_tokens++] = PRVM_SetTempString(token);
2690                 if (!*p)
2691                         break;
2692         }
2693
2694         PRVM_G_FLOAT(OFS_RETURN) = num_tokens;
2695 }
2696
2697 //string(float n) argv = #442; // returns a word from the tokenized string (returns nothing for an invalid index)
2698 //this function originally written by KrimZon, made shorter by LordHavoc
2699 void VM_argv (void)
2700 {
2701         int token_num;
2702
2703         VM_SAFEPARMCOUNT(1,VM_argv);
2704
2705         token_num = (int)PRVM_G_FLOAT(OFS_PARM0);
2706
2707         if(token_num < 0)
2708                 token_num += num_tokens;
2709
2710         if (token_num >= 0 && token_num < num_tokens)
2711                 PRVM_G_INT(OFS_RETURN) = tokens[token_num];
2712         else
2713                 PRVM_G_INT(OFS_RETURN) = OFS_NULL;
2714 }
2715
2716 //float(float n) argv_start_index = #515; // returns the start index of a token
2717 void VM_argv_start_index (void)
2718 {
2719         int token_num;
2720
2721         VM_SAFEPARMCOUNT(1,VM_argv);
2722
2723         token_num = (int)PRVM_G_FLOAT(OFS_PARM0);
2724
2725         if(token_num < 0)
2726                 token_num += num_tokens;
2727
2728         if (token_num >= 0 && token_num < num_tokens)
2729                 PRVM_G_FLOAT(OFS_RETURN) = tokens_startpos[token_num];
2730         else
2731                 PRVM_G_FLOAT(OFS_RETURN) = -1;
2732 }
2733
2734 //float(float n) argv_end_index = #516; // returns the end index of a token
2735 void VM_argv_end_index (void)
2736 {
2737         int token_num;
2738
2739         VM_SAFEPARMCOUNT(1,VM_argv);
2740
2741         token_num = (int)PRVM_G_FLOAT(OFS_PARM0);
2742
2743         if(token_num < 0)
2744                 token_num += num_tokens;
2745
2746         if (token_num >= 0 && token_num < num_tokens)
2747                 PRVM_G_FLOAT(OFS_RETURN) = tokens_endpos[token_num];
2748         else
2749                 PRVM_G_FLOAT(OFS_RETURN) = -1;
2750 }
2751
2752 /*
2753 =========
2754 VM_isserver
2755
2756 float   isserver()
2757 =========
2758 */
2759 void VM_isserver(void)
2760 {
2761         VM_SAFEPARMCOUNT(0,VM_serverstate);
2762
2763         PRVM_G_FLOAT(OFS_RETURN) = sv.active && (svs.maxclients > 1 || cls.state == ca_dedicated);
2764 }
2765
2766 /*
2767 =========
2768 VM_clientcount
2769
2770 float   clientcount()
2771 =========
2772 */
2773 void VM_clientcount(void)
2774 {
2775         VM_SAFEPARMCOUNT(0,VM_clientcount);
2776
2777         PRVM_G_FLOAT(OFS_RETURN) = svs.maxclients;
2778 }
2779
2780 /*
2781 =========
2782 VM_clientstate
2783
2784 float   clientstate()
2785 =========
2786 */
2787 void VM_clientstate(void)
2788 {
2789         VM_SAFEPARMCOUNT(0,VM_clientstate);
2790
2791
2792         switch( cls.state ) {
2793                 case ca_uninitialized:
2794                 case ca_dedicated:
2795                         PRVM_G_FLOAT(OFS_RETURN) = 0;
2796                         break;
2797                 case ca_disconnected:
2798                         PRVM_G_FLOAT(OFS_RETURN) = 1;
2799                         break;
2800                 case ca_connected:
2801                         PRVM_G_FLOAT(OFS_RETURN) = 2;
2802                         break;
2803                 default:
2804                         // should never be reached!
2805                         break;
2806         }
2807 }
2808
2809 /*
2810 =========
2811 VM_getostype
2812
2813 float   getostype(void)
2814 =========
2815 */ // not used at the moment -> not included in the common list
2816 void VM_getostype(void)
2817 {
2818         VM_SAFEPARMCOUNT(0,VM_getostype);
2819
2820         /*
2821         OS_WINDOWS
2822         OS_LINUX
2823         OS_MAC - not supported
2824         */
2825
2826 #ifdef WIN32
2827         PRVM_G_FLOAT(OFS_RETURN) = 0;
2828 #elif defined(MACOSX)
2829         PRVM_G_FLOAT(OFS_RETURN) = 2;
2830 #else
2831         PRVM_G_FLOAT(OFS_RETURN) = 1;
2832 #endif
2833 }
2834
2835 /*
2836 =========
2837 VM_gettime
2838
2839 float   gettime(void)
2840 =========
2841 */
2842 extern double host_starttime;
2843 float CDAudio_GetPosition(void);
2844 void VM_gettime(void)
2845 {
2846         int timer_index;
2847
2848         VM_SAFEPARMCOUNTRANGE(0,1,VM_gettime);
2849
2850         if(prog->argc == 0)
2851         {
2852                 PRVM_G_FLOAT(OFS_RETURN) = (float) realtime;
2853         }
2854         else
2855         {
2856                 timer_index = (int) PRVM_G_FLOAT(OFS_PARM0);
2857         switch(timer_index)
2858         {
2859             case 0: // GETTIME_FRAMESTART
2860                 PRVM_G_FLOAT(OFS_RETURN) = (float) realtime;
2861                 break;
2862             case 1: // GETTIME_REALTIME
2863                 PRVM_G_FLOAT(OFS_RETURN) = (float) Sys_DoubleTime();
2864                 break;
2865             case 2: // GETTIME_HIRES
2866                 PRVM_G_FLOAT(OFS_RETURN) = (float) (Sys_DoubleTime() - realtime);
2867                 break;
2868             case 3: // GETTIME_UPTIME
2869                 PRVM_G_FLOAT(OFS_RETURN) = (float) (Sys_DoubleTime() - host_starttime);
2870                 break;
2871             case 4: // GETTIME_CDTRACK
2872                 PRVM_G_FLOAT(OFS_RETURN) = (float) CDAudio_GetPosition();
2873                 break;
2874                         default:
2875                                 VM_Warning("VM_gettime: %s: unsupported timer specified, returning realtime\n", PRVM_NAME);
2876                                 PRVM_G_FLOAT(OFS_RETURN) = (float) realtime;
2877                                 break;
2878                 }
2879         }
2880 }
2881
2882 /*
2883 =========
2884 VM_loadfromdata
2885
2886 loadfromdata(string data)
2887 =========
2888 */
2889 void VM_loadfromdata(void)
2890 {
2891         VM_SAFEPARMCOUNT(1,VM_loadentsfromfile);
2892
2893         PRVM_ED_LoadFromFile(PRVM_G_STRING(OFS_PARM0));
2894 }
2895
2896 /*
2897 ========================
2898 VM_parseentitydata
2899
2900 parseentitydata(entity ent, string data)
2901 ========================
2902 */
2903 void VM_parseentitydata(void)
2904 {
2905         prvm_edict_t *ent;
2906         const char *data;
2907
2908         VM_SAFEPARMCOUNT(2, VM_parseentitydata);
2909
2910         // get edict and test it
2911         ent = PRVM_G_EDICT(OFS_PARM0);
2912         if (ent->priv.required->free)
2913                 PRVM_ERROR ("VM_parseentitydata: %s: Can only set already spawned entities (entity %i is free)!", PRVM_NAME, PRVM_NUM_FOR_EDICT(ent));
2914
2915         data = PRVM_G_STRING(OFS_PARM1);
2916
2917         // parse the opening brace
2918         if (!COM_ParseToken_Simple(&data, false, false) || com_token[0] != '{' )
2919                 PRVM_ERROR ("VM_parseentitydata: %s: Couldn't parse entity data:\n%s", PRVM_NAME, data );
2920
2921         PRVM_ED_ParseEdict (data, ent);
2922 }
2923
2924 /*
2925 =========
2926 VM_loadfromfile
2927
2928 loadfromfile(string file)
2929 =========
2930 */
2931 void VM_loadfromfile(void)
2932 {
2933         const char *filename;
2934         char *data;
2935
2936         VM_SAFEPARMCOUNT(1,VM_loadfromfile);
2937
2938         filename = PRVM_G_STRING(OFS_PARM0);
2939         if (FS_CheckNastyPath(filename, false))
2940         {
2941                 PRVM_G_FLOAT(OFS_RETURN) = -4;
2942                 VM_Warning("VM_loadfromfile: %s dangerous or non-portable filename \"%s\" not allowed. (contains : or \\ or begins with .. or /)\n", PRVM_NAME, filename);
2943                 return;
2944         }
2945
2946         // not conform with VM_fopen
2947         data = (char *)FS_LoadFile(filename, tempmempool, false, NULL);
2948         if (data == NULL)
2949                 PRVM_G_FLOAT(OFS_RETURN) = -1;
2950
2951         PRVM_ED_LoadFromFile(data);
2952
2953         if(data)
2954                 Mem_Free(data);
2955 }
2956
2957
2958 /*
2959 =========
2960 VM_modulo
2961
2962 float   mod(float val, float m)
2963 =========
2964 */
2965 void VM_modulo(void)
2966 {
2967         int val, m;
2968         VM_SAFEPARMCOUNT(2,VM_module);
2969
2970         val = (int) PRVM_G_FLOAT(OFS_PARM0);
2971         m       = (int) PRVM_G_FLOAT(OFS_PARM1);
2972
2973         PRVM_G_FLOAT(OFS_RETURN) = (float) (val % m);
2974 }
2975
2976 void VM_Search_Init(void)
2977 {
2978         int i;
2979         for (i = 0;i < PRVM_MAX_OPENSEARCHES;i++)
2980                 prog->opensearches[i] = NULL;
2981 }
2982
2983 void VM_Search_Reset(void)
2984 {
2985         int i;
2986         // reset the fssearch list
2987         for(i = 0; i < PRVM_MAX_OPENSEARCHES; i++)
2988         {
2989                 if(prog->opensearches[i])
2990                         FS_FreeSearch(prog->opensearches[i]);
2991                 prog->opensearches[i] = NULL;
2992         }
2993 }
2994
2995 /*
2996 =========
2997 VM_search_begin
2998
2999 float search_begin(string pattern, float caseinsensitive, float quiet)
3000 =========
3001 */
3002 void VM_search_begin(void)
3003 {
3004         int handle;
3005         const char *pattern;
3006         int caseinsens, quiet;
3007
3008         VM_SAFEPARMCOUNT(3, VM_search_begin);
3009
3010         pattern = PRVM_G_STRING(OFS_PARM0);
3011
3012         VM_CheckEmptyString(pattern);
3013
3014         caseinsens = (int)PRVM_G_FLOAT(OFS_PARM1);
3015         quiet = (int)PRVM_G_FLOAT(OFS_PARM2);
3016
3017         for(handle = 0; handle < PRVM_MAX_OPENSEARCHES; handle++)
3018                 if(!prog->opensearches[handle])
3019                         break;
3020
3021         if(handle >= PRVM_MAX_OPENSEARCHES)
3022         {
3023                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3024                 VM_Warning("VM_search_begin: %s ran out of search handles (%i)\n", PRVM_NAME, PRVM_MAX_OPENSEARCHES);
3025                 return;
3026         }
3027
3028         if(!(prog->opensearches[handle] = FS_Search(pattern,caseinsens, quiet)))
3029                 PRVM_G_FLOAT(OFS_RETURN) = -1;
3030         else
3031         {
3032                 prog->opensearches_origin[handle] = PRVM_AllocationOrigin();
3033                 PRVM_G_FLOAT(OFS_RETURN) = handle;
3034         }
3035 }
3036
3037 /*
3038 =========
3039 VM_search_end
3040
3041 void    search_end(float handle)
3042 =========
3043 */
3044 void VM_search_end(void)
3045 {
3046         int handle;
3047         VM_SAFEPARMCOUNT(1, VM_search_end);
3048
3049         handle = (int)PRVM_G_FLOAT(OFS_PARM0);
3050
3051         if(handle < 0 || handle >= PRVM_MAX_OPENSEARCHES)
3052         {
3053                 VM_Warning("VM_search_end: invalid handle %i used in %s\n", handle, PRVM_NAME);
3054                 return;
3055         }
3056         if(prog->opensearches[handle] == NULL)
3057         {
3058                 VM_Warning("VM_search_end: no such handle %i in %s\n", handle, PRVM_NAME);
3059                 return;
3060         }
3061
3062         FS_FreeSearch(prog->opensearches[handle]);
3063         prog->opensearches[handle] = NULL;
3064         if(prog->opensearches_origin[handle])
3065                 PRVM_Free((char *)prog->opensearches_origin[handle]);
3066 }
3067
3068 /*
3069 =========
3070 VM_search_getsize
3071
3072 float   search_getsize(float handle)
3073 =========
3074 */
3075 void VM_search_getsize(void)
3076 {
3077         int handle;
3078         VM_SAFEPARMCOUNT(1, VM_M_search_getsize);
3079
3080         handle = (int)PRVM_G_FLOAT(OFS_PARM0);
3081
3082         if(handle < 0 || handle >= PRVM_MAX_OPENSEARCHES)
3083         {
3084                 VM_Warning("VM_search_getsize: invalid handle %i used in %s\n", handle, PRVM_NAME);
3085                 return;
3086         }
3087         if(prog->opensearches[handle] == NULL)
3088         {
3089                 VM_Warning("VM_search_getsize: no such handle %i in %s\n", handle, PRVM_NAME);
3090                 return;
3091         }
3092
3093         PRVM_G_FLOAT(OFS_RETURN) = prog->opensearches[handle]->numfilenames;
3094 }
3095
3096 /*
3097 =========
3098 VM_search_getfilename
3099
3100 string  search_getfilename(float handle, float num)
3101 =========
3102 */
3103 void VM_search_getfilename(void)
3104 {
3105         int handle, filenum;
3106         VM_SAFEPARMCOUNT(2, VM_search_getfilename);
3107
3108         handle = (int)PRVM_G_FLOAT(OFS_PARM0);
3109         filenum = (int)PRVM_G_FLOAT(OFS_PARM1);
3110
3111         if(handle < 0 || handle >= PRVM_MAX_OPENSEARCHES)
3112         {
3113                 VM_Warning("VM_search_getfilename: invalid handle %i used in %s\n", handle, PRVM_NAME);
3114                 return;
3115         }
3116         if(prog->opensearches[handle] == NULL)
3117         {
3118                 VM_Warning("VM_search_getfilename: no such handle %i in %s\n", handle, PRVM_NAME);
3119                 return;
3120         }
3121         if(filenum < 0 || filenum >= prog->opensearches[handle]->numfilenames)
3122         {
3123                 VM_Warning("VM_search_getfilename: invalid filenum %i in %s\n", filenum, PRVM_NAME);
3124                 return;
3125         }
3126
3127         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(prog->opensearches[handle]->filenames[filenum]);
3128 }
3129
3130 /*
3131 =========
3132 VM_chr
3133
3134 string  chr(float ascii)
3135 =========
3136 */
3137 void VM_chr(void)
3138 {
3139         /*
3140         char tmp[2];
3141         VM_SAFEPARMCOUNT(1, VM_chr);
3142
3143         tmp[0] = (unsigned char) PRVM_G_FLOAT(OFS_PARM0);
3144         tmp[1] = 0;
3145
3146         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(tmp);
3147         */
3148         
3149         char tmp[8];
3150         int len;
3151         VM_SAFEPARMCOUNT(1, VM_chr);
3152
3153         len = u8_fromchar((Uchar)PRVM_G_FLOAT(OFS_PARM0), tmp, sizeof(tmp));
3154         if (len < 0)
3155                 len = 0;
3156         tmp[len] = 0;
3157         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(tmp);
3158 }
3159
3160 //=============================================================================
3161 // Draw builtins (client & menu)
3162
3163 /*
3164 =========
3165 VM_iscachedpic
3166
3167 float   iscachedpic(string pic)
3168 =========
3169 */
3170 void VM_iscachedpic(void)
3171 {
3172         VM_SAFEPARMCOUNT(1,VM_iscachedpic);
3173
3174         // drawq hasnt such a function, thus always return true
3175         PRVM_G_FLOAT(OFS_RETURN) = false;
3176 }
3177
3178 /*
3179 =========
3180 VM_precache_pic
3181
3182 string  precache_pic(string pic)
3183 =========
3184 */
3185 void VM_precache_pic(void)
3186 {
3187         const char      *s;
3188
3189         VM_SAFEPARMCOUNT(1, VM_precache_pic);
3190
3191         s = PRVM_G_STRING(OFS_PARM0);
3192         PRVM_G_INT(OFS_RETURN) = PRVM_G_INT(OFS_PARM0);
3193         VM_CheckEmptyString (s);
3194
3195         // AK Draw_CachePic is supposed to always return a valid pointer
3196         if( Draw_CachePic_Flags(s, CACHEPICFLAG_NOTPERSISTENT)->tex == r_texture_notexture )
3197                 PRVM_G_INT(OFS_RETURN) = OFS_NULL;
3198 }
3199
3200 /*
3201 =========
3202 VM_freepic
3203
3204 freepic(string s)
3205 =========
3206 */
3207 void VM_freepic(void)
3208 {
3209         const char *s;
3210
3211         VM_SAFEPARMCOUNT(1,VM_freepic);
3212
3213         s = PRVM_G_STRING(OFS_PARM0);
3214         VM_CheckEmptyString (s);
3215
3216         Draw_FreePic(s);
3217 }
3218
3219 void getdrawfontscale(float *sx, float *sy)
3220 {
3221         vec3_t v;
3222         *sx = *sy = 1;
3223         if(prog->globaloffsets.drawfontscale >= 0)
3224         {
3225                 VectorCopy(PRVM_G_VECTOR(prog->globaloffsets.drawfontscale), v);
3226                 if(VectorLength2(v) > 0)
3227                 {
3228                         *sx = v[0];
3229                         *sy = v[1];
3230                 }
3231         }
3232 }
3233
3234 dp_font_t *getdrawfont(void)
3235 {
3236         if(prog->globaloffsets.drawfont >= 0)
3237         {
3238                 int f = (int) PRVM_G_FLOAT(prog->globaloffsets.drawfont);
3239                 if(f < 0 || f >= MAX_FONTS)
3240                         return FONT_DEFAULT;
3241                 return &dp_fonts[f];
3242         }
3243         else
3244                 return FONT_DEFAULT;
3245 }
3246
3247 /*
3248 =========
3249 VM_drawcharacter
3250
3251 float   drawcharacter(vector position, float character, vector scale, vector rgb, float alpha, float flag)
3252 =========
3253 */
3254 void VM_drawcharacter(void)
3255 {
3256         float *pos,*scale,*rgb;
3257         char   character;
3258         int flag;
3259         float sx, sy;
3260         VM_SAFEPARMCOUNT(6,VM_drawcharacter);
3261
3262         character = (char) PRVM_G_FLOAT(OFS_PARM1);
3263         if(character == 0)
3264         {
3265                 PRVM_G_FLOAT(OFS_RETURN) = -1;
3266                 VM_Warning("VM_drawcharacter: %s passed null character !\n",PRVM_NAME);
3267                 return;
3268         }
3269
3270         pos = PRVM_G_VECTOR(OFS_PARM0);
3271         scale = PRVM_G_VECTOR(OFS_PARM2);
3272         rgb = PRVM_G_VECTOR(OFS_PARM3);
3273         flag = (int)PRVM_G_FLOAT(OFS_PARM5);
3274
3275         if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
3276         {
3277                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3278                 VM_Warning("VM_drawcharacter: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
3279                 return;
3280         }
3281
3282         if(pos[2] || scale[2])
3283                 Con_Printf("VM_drawcharacter: z value%c from %s discarded\n",(pos[2] && scale[2]) ? 's' : 0,((pos[2] && scale[2]) ? "pos and scale" : (pos[2] ? "pos" : "scale")));
3284
3285         if(!scale[0] || !scale[1])
3286         {
3287                 PRVM_G_FLOAT(OFS_RETURN) = -3;
3288                 VM_Warning("VM_drawcharacter: scale %s is null !\n", (scale[0] == 0) ? ((scale[1] == 0) ? "x and y" : "x") : "y");
3289                 return;
3290         }
3291
3292         getdrawfontscale(&sx, &sy);
3293         DrawQ_String_Font_Scale(pos[0], pos[1], &character, 1, scale[0], scale[1], sx, sy, rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true, getdrawfont());
3294         PRVM_G_FLOAT(OFS_RETURN) = 1;
3295 }
3296
3297 /*
3298 =========
3299 VM_drawstring
3300
3301 float   drawstring(vector position, string text, vector scale, vector rgb, float alpha, float flag)
3302 =========
3303 */
3304 void VM_drawstring(void)
3305 {
3306         float *pos,*scale,*rgb;
3307         const char  *string;
3308         int flag;
3309         float sx, sy;
3310         VM_SAFEPARMCOUNT(6,VM_drawstring);
3311
3312         string = PRVM_G_STRING(OFS_PARM1);
3313         pos = PRVM_G_VECTOR(OFS_PARM0);
3314         scale = PRVM_G_VECTOR(OFS_PARM2);
3315         rgb = PRVM_G_VECTOR(OFS_PARM3);
3316         flag = (int)PRVM_G_FLOAT(OFS_PARM5);
3317
3318         if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
3319         {
3320                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3321                 VM_Warning("VM_drawstring: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
3322                 return;
3323         }
3324
3325         if(!scale[0] || !scale[1])
3326         {
3327                 PRVM_G_FLOAT(OFS_RETURN) = -3;
3328                 VM_Warning("VM_drawstring: scale %s is null !\n", (scale[0] == 0) ? ((scale[1] == 0) ? "x and y" : "x") : "y");
3329                 return;
3330         }
3331
3332         if(pos[2] || scale[2])
3333                 Con_Printf("VM_drawstring: z value%s from %s discarded\n",(pos[2] && scale[2]) ? "s" : " ",((pos[2] && scale[2]) ? "pos and scale" : (pos[2] ? "pos" : "scale")));
3334
3335         getdrawfontscale(&sx, &sy);
3336         DrawQ_String_Font_Scale(pos[0], pos[1], string, 0, scale[0], scale[1], sx, sy, rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true, getdrawfont());
3337         //Font_DrawString(pos[0], pos[1], string, 0, scale[0], scale[1], rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true);
3338         PRVM_G_FLOAT(OFS_RETURN) = 1;
3339 }
3340
3341 /*
3342 =========
3343 VM_drawcolorcodedstring
3344
3345 float   drawcolorcodedstring(vector position, string text, vector scale, float alpha, float flag)
3346 =========
3347 */
3348 void VM_drawcolorcodedstring(void)
3349 {
3350         float *pos,*scale;
3351         const char  *string;
3352         int flag,color;
3353         float sx, sy;
3354         VM_SAFEPARMCOUNT(5,VM_drawstring);
3355
3356         string = PRVM_G_STRING(OFS_PARM1);
3357         pos = PRVM_G_VECTOR(OFS_PARM0);
3358         scale = PRVM_G_VECTOR(OFS_PARM2);
3359         flag = (int)PRVM_G_FLOAT(OFS_PARM4);
3360
3361         if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
3362         {
3363                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3364                 VM_Warning("VM_drawcolorcodedstring: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
3365                 return;
3366         }
3367
3368         if(!scale[0] || !scale[1])
3369         {
3370                 PRVM_G_FLOAT(OFS_RETURN) = -3;
3371                 VM_Warning("VM_drawcolorcodedstring: scale %s is null !\n", (scale[0] == 0) ? ((scale[1] == 0) ? "x and y" : "x") : "y");
3372                 return;
3373         }
3374
3375         if(pos[2] || scale[2])
3376                 Con_Printf("VM_drawcolorcodedstring: z value%s from %s discarded\n",(pos[2] && scale[2]) ? "s" : " ",((pos[2] && scale[2]) ? "pos and scale" : (pos[2] ? "pos" : "scale")));
3377
3378         color = -1;
3379         getdrawfontscale(&sx, &sy);
3380         DrawQ_String_Font_Scale(pos[0], pos[1], string, 0, scale[0], scale[1], sx, sy, 1, 1, 1, PRVM_G_FLOAT(OFS_PARM3), flag, NULL, false, getdrawfont());
3381         PRVM_G_FLOAT(OFS_RETURN) = 1;
3382 }
3383 /*
3384 =========
3385 VM_stringwidth
3386
3387 float   stringwidth(string text, float allowColorCodes, float size)
3388 =========
3389 */
3390 void VM_stringwidth(void)
3391 {
3392         const char  *string;
3393         float *szv;
3394         float mult; // sz is intended font size so we can later add freetype support, mult is font size multiplier in pixels per character cell
3395         int colors;
3396         float sx, sy;
3397         size_t maxlen = 0;
3398         VM_SAFEPARMCOUNTRANGE(2,3,VM_drawstring);
3399
3400         getdrawfontscale(&sx, &sy);
3401         if(prog->argc == 3)
3402         {
3403                 szv = PRVM_G_VECTOR(OFS_PARM2);
3404                 mult = 1;
3405         }
3406         else
3407         {
3408                 // we want the width for 8x8 font size, divided by 8
3409                 static float defsize[] = {8, 8};
3410                 szv = defsize;
3411                 mult = 0.125;
3412                 // to make sure snapping is turned off, ALWAYS use a nontrivial scale in this case
3413                 if(sx >= 0.9 && sx <= 1.1)
3414                 {
3415                         mult *= 2;
3416                         sx /= 2;
3417                         sy /= 2;
3418                 }
3419         }
3420
3421         string = PRVM_G_STRING(OFS_PARM0);
3422         colors = (int)PRVM_G_FLOAT(OFS_PARM1);
3423
3424         PRVM_G_FLOAT(OFS_RETURN) = DrawQ_TextWidth_Font_UntilWidth_TrackColors_Size_Scale(string, szv[0], szv[1], sx, sy, &maxlen, NULL, !colors, getdrawfont(), 1000000000) * mult; // 1x1 characters, don't actually draw
3425 /*
3426         if(prog->argc == 3)
3427         {
3428                 mult = sz = PRVM_G_FLOAT(OFS_PARM2);
3429         }
3430         else
3431         {
3432                 sz = 8;
3433                 mult = 1;
3434         }
3435
3436         string = PRVM_G_STRING(OFS_PARM0);
3437         colors = (int)PRVM_G_FLOAT(OFS_PARM1);
3438
3439         PRVM_G_FLOAT(OFS_RETURN) = DrawQ_TextWidth_Font(string, 0, !colors, getdrawfont()) * mult; // 1x1 characters, don't actually draw
3440 */
3441
3442 }
3443 /*
3444 =========
3445 VM_drawpic
3446
3447 float   drawpic(vector position, string pic, vector size, vector rgb, float alpha, float flag)
3448 =========
3449 */
3450 void VM_drawpic(void)
3451 {
3452         const char *picname;
3453         float *size, *pos, *rgb;
3454         int flag;
3455
3456         VM_SAFEPARMCOUNT(6,VM_drawpic);
3457
3458         picname = PRVM_G_STRING(OFS_PARM1);
3459         VM_CheckEmptyString (picname);
3460
3461         // is pic cached ? no function yet for that
3462         if(!1)
3463         {
3464                 PRVM_G_FLOAT(OFS_RETURN) = -4;
3465                 VM_Warning("VM_drawpic: %s: %s not cached !\n", PRVM_NAME, picname);
3466                 return;
3467         }
3468
3469         pos = PRVM_G_VECTOR(OFS_PARM0);
3470         size = PRVM_G_VECTOR(OFS_PARM2);
3471         rgb = PRVM_G_VECTOR(OFS_PARM3);
3472         flag = (int) PRVM_G_FLOAT(OFS_PARM5);
3473
3474         if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
3475         {
3476                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3477                 VM_Warning("VM_drawpic: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
3478                 return;
3479         }
3480
3481         if(pos[2] || size[2])
3482                 Con_Printf("VM_drawpic: z value%s from %s discarded\n",(pos[2] && size[2]) ? "s" : " ",((pos[2] && size[2]) ? "pos and size" : (pos[2] ? "pos" : "size")));
3483
3484         DrawQ_Pic(pos[0], pos[1], Draw_CachePic (picname), size[0], size[1], rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag);
3485         PRVM_G_FLOAT(OFS_RETURN) = 1;
3486 }
3487 /*
3488 =========
3489 VM_drawrotpic
3490
3491 float   drawrotpic(vector position, string pic, vector size, vector org, float angle, vector rgb, float alpha, float flag)
3492 =========
3493 */
3494 void VM_drawrotpic(void)
3495 {
3496         const char *picname;
3497         float *size, *pos, *org, *rgb;
3498         int flag;
3499
3500         VM_SAFEPARMCOUNT(8,VM_drawrotpic);
3501
3502         picname = PRVM_G_STRING(OFS_PARM1);
3503         VM_CheckEmptyString (picname);
3504
3505         // is pic cached ? no function yet for that
3506         if(!1)
3507         {
3508                 PRVM_G_FLOAT(OFS_RETURN) = -4;
3509                 VM_Warning("VM_drawrotpic: %s: %s not cached !\n", PRVM_NAME, picname);
3510                 return;
3511         }
3512
3513         pos = PRVM_G_VECTOR(OFS_PARM0);
3514         size = PRVM_G_VECTOR(OFS_PARM2);
3515         org = PRVM_G_VECTOR(OFS_PARM3);
3516         rgb = PRVM_G_VECTOR(OFS_PARM5);
3517         flag = (int) PRVM_G_FLOAT(OFS_PARM7);
3518
3519         if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
3520         {
3521                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3522                 VM_Warning("VM_drawrotpic: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
3523                 return;
3524         }
3525
3526         if(pos[2] || size[2] || org[2])
3527                 Con_Printf("VM_drawrotpic: z value from pos/size/org discarded\n");
3528
3529         DrawQ_RotPic(pos[0], pos[1], Draw_CachePic(picname), size[0], size[1], org[0], org[1], PRVM_G_FLOAT(OFS_PARM4), rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM6), flag);
3530         PRVM_G_FLOAT(OFS_RETURN) = 1;
3531 }
3532 /*
3533 =========
3534 VM_drawsubpic
3535
3536 float   drawsubpic(vector position, vector size, string pic, vector srcPos, vector srcSize, vector rgb, float alpha, float flag)
3537
3538 =========
3539 */
3540 void VM_drawsubpic(void)
3541 {
3542         const char *picname;
3543         float *size, *pos, *rgb, *srcPos, *srcSize, alpha;
3544         int flag;
3545
3546         VM_SAFEPARMCOUNT(8,VM_drawsubpic);
3547
3548         picname = PRVM_G_STRING(OFS_PARM2);
3549         VM_CheckEmptyString (picname);
3550
3551         // is pic cached ? no function yet for that
3552         if(!1)
3553         {
3554                 PRVM_G_FLOAT(OFS_RETURN) = -4;
3555                 VM_Warning("VM_drawsubpic: %s: %s not cached !\n", PRVM_NAME, picname);
3556                 return;
3557         }
3558
3559         pos = PRVM_G_VECTOR(OFS_PARM0);
3560         size = PRVM_G_VECTOR(OFS_PARM1);
3561         srcPos = PRVM_G_VECTOR(OFS_PARM3);
3562         srcSize = PRVM_G_VECTOR(OFS_PARM4);
3563         rgb = PRVM_G_VECTOR(OFS_PARM5);
3564         alpha = PRVM_G_FLOAT(OFS_PARM6);
3565         flag = (int) PRVM_G_FLOAT(OFS_PARM7);
3566
3567         if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
3568         {
3569                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3570                 VM_Warning("VM_drawsubpic: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
3571                 return;
3572         }
3573
3574         if(pos[2] || size[2])
3575                 Con_Printf("VM_drawsubpic: z value%s from %s discarded\n",(pos[2] && size[2]) ? "s" : " ",((pos[2] && size[2]) ? "pos and size" : (pos[2] ? "pos" : "size")));
3576
3577         DrawQ_SuperPic(pos[0], pos[1], Draw_CachePic (picname),
3578                 size[0], size[1],
3579                 srcPos[0],              srcPos[1],              rgb[0], rgb[1], rgb[2], alpha,
3580                 srcPos[0] + srcSize[0], srcPos[1],              rgb[0], rgb[1], rgb[2], alpha,
3581                 srcPos[0],              srcPos[1] + srcSize[1], rgb[0], rgb[1], rgb[2], alpha,
3582                 srcPos[0] + srcSize[0], srcPos[1] + srcSize[1], rgb[0], rgb[1], rgb[2], alpha,
3583                 flag);
3584         PRVM_G_FLOAT(OFS_RETURN) = 1;
3585 }
3586
3587 /*
3588 =========
3589 VM_drawfill
3590
3591 float drawfill(vector position, vector size, vector rgb, float alpha, float flag)
3592 =========
3593 */
3594 void VM_drawfill(void)
3595 {
3596         float *size, *pos, *rgb;
3597         int flag;
3598
3599         VM_SAFEPARMCOUNT(5,VM_drawfill);
3600
3601
3602         pos = PRVM_G_VECTOR(OFS_PARM0);
3603         size = PRVM_G_VECTOR(OFS_PARM1);
3604         rgb = PRVM_G_VECTOR(OFS_PARM2);
3605         flag = (int) PRVM_G_FLOAT(OFS_PARM4);
3606
3607         if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
3608         {
3609                 PRVM_G_FLOAT(OFS_RETURN) = -2;
3610                 VM_Warning("VM_drawfill: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
3611                 return;
3612         }
3613
3614         if(pos[2] || size[2])
3615                 Con_Printf("VM_drawfill: z value%s from %s discarded\n",(pos[2] && size[2]) ? "s" : " ",((pos[2] && size[2]) ? "pos and size" : (pos[2] ? "pos" : "size")));
3616
3617         DrawQ_Fill(pos[0], pos[1], size[0], size[1], rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM3), flag);
3618         PRVM_G_FLOAT(OFS_RETURN) = 1;
3619 }
3620
3621 /*
3622 =========
3623 VM_drawsetcliparea
3624
3625 drawsetcliparea(float x, float y, float width, float height)
3626 =========
3627 */
3628 void VM_drawsetcliparea(void)
3629 {
3630         float x,y,w,h;
3631         VM_SAFEPARMCOUNT(4,VM_drawsetcliparea);
3632
3633         x = bound(0, PRVM_G_FLOAT(OFS_PARM0), vid_conwidth.integer);
3634         y = bound(0, PRVM_G_FLOAT(OFS_PARM1), vid_conheight.integer);
3635         w = bound(0, PRVM_G_FLOAT(OFS_PARM2) + PRVM_G_FLOAT(OFS_PARM0) - x, (vid_conwidth.integer  - x));
3636         h = bound(0, PRVM_G_FLOAT(OFS_PARM3) + PRVM_G_FLOAT(OFS_PARM1) - y, (vid_conheight.integer - y));
3637
3638         DrawQ_SetClipArea(x, y, w, h);
3639 }
3640
3641 /*
3642 =========
3643 VM_drawresetcliparea
3644
3645 drawresetcliparea()
3646 =========
3647 */
3648 void VM_drawresetcliparea(void)
3649 {
3650         VM_SAFEPARMCOUNT(0,VM_drawresetcliparea);
3651
3652         DrawQ_ResetClipArea();
3653 }
3654
3655 /*
3656 =========
3657 VM_getimagesize
3658
3659 vector  getimagesize(string pic)
3660 =========
3661 */
3662 void VM_getimagesize(void)
3663 {
3664         const char *p;
3665         cachepic_t *pic;
3666
3667         VM_SAFEPARMCOUNT(1,VM_getimagesize);
3668
3669         p = PRVM_G_STRING(OFS_PARM0);
3670         VM_CheckEmptyString (p);
3671
3672         pic = Draw_CachePic_Flags (p, CACHEPICFLAG_NOTPERSISTENT);
3673
3674         PRVM_G_VECTOR(OFS_RETURN)[0] = pic->width;
3675         PRVM_G_VECTOR(OFS_RETURN)[1] = pic->height;
3676         PRVM_G_VECTOR(OFS_RETURN)[2] = 0;
3677 }
3678
3679 /*
3680 =========
3681 VM_keynumtostring
3682
3683 string keynumtostring(float keynum)
3684 =========
3685 */
3686 void VM_keynumtostring (void)
3687 {
3688         VM_SAFEPARMCOUNT(1, VM_keynumtostring);
3689
3690         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(Key_KeynumToString((int)PRVM_G_FLOAT(OFS_PARM0)));
3691 }
3692
3693 /*
3694 =========
3695 VM_findkeysforcommand
3696
3697 string  findkeysforcommand(string command)
3698
3699 the returned string is an altstring
3700 =========
3701 */
3702 #define NUMKEYS 5 // TODO: merge the constant in keys.c with this one somewhen
3703
3704 void M_FindKeysForCommand(const char *command, int *keys);
3705 void VM_findkeysforcommand(void)
3706 {
3707         const char *cmd;
3708         char ret[VM_STRINGTEMP_LENGTH];
3709         int keys[NUMKEYS];
3710         int i;
3711
3712         VM_SAFEPARMCOUNT(1, VM_findkeysforcommand);
3713
3714         cmd = PRVM_G_STRING(OFS_PARM0);
3715
3716         VM_CheckEmptyString(cmd);
3717
3718         M_FindKeysForCommand(cmd, keys);
3719
3720         ret[0] = 0;
3721         for(i = 0; i < NUMKEYS; i++)
3722                 strlcat(ret, va(" \'%i\'", keys[i]), sizeof(ret));
3723
3724         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(ret);
3725 }
3726
3727 /*
3728 =========
3729 VM_stringtokeynum
3730
3731 float stringtokeynum(string key)
3732 =========
3733 */
3734 void VM_stringtokeynum (void)
3735 {
3736         VM_SAFEPARMCOUNT( 1, VM_keynumtostring );
3737
3738         PRVM_G_INT(OFS_RETURN) = Key_StringToKeynum(PRVM_G_STRING(OFS_PARM0));
3739 }
3740
3741 // CL_Video interface functions
3742
3743 /*
3744 ========================
3745 VM_cin_open
3746
3747 float cin_open(string file, string name)
3748 ========================
3749 */
3750 void VM_cin_open( void )
3751 {
3752         const char *file;
3753         const char *name;
3754
3755         VM_SAFEPARMCOUNT( 2, VM_cin_open );
3756
3757         file = PRVM_G_STRING( OFS_PARM0 );
3758         name = PRVM_G_STRING( OFS_PARM1 );
3759
3760         VM_CheckEmptyString( file );
3761     VM_CheckEmptyString( name );
3762
3763         if( CL_OpenVideo( file, name, MENUOWNER ) )
3764                 PRVM_G_FLOAT( OFS_RETURN ) = 1;
3765         else
3766                 PRVM_G_FLOAT( OFS_RETURN ) = 0;
3767 }
3768
3769 /*
3770 ========================
3771 VM_cin_close
3772
3773 void cin_close(string name)
3774 ========================
3775 */
3776 void VM_cin_close( void )
3777 {
3778         const char *name;
3779
3780         VM_SAFEPARMCOUNT( 1, VM_cin_close );
3781
3782         name = PRVM_G_STRING( OFS_PARM0 );
3783         VM_CheckEmptyString( name );
3784
3785         CL_CloseVideo( CL_GetVideoByName( name ) );
3786 }
3787
3788 /*
3789 ========================
3790 VM_cin_setstate
3791 void cin_setstate(string name, float type)
3792 ========================
3793 */
3794 void VM_cin_setstate( void )
3795 {
3796         const char *name;
3797         clvideostate_t  state;
3798         clvideo_t               *video;
3799
3800         VM_SAFEPARMCOUNT( 2, VM_cin_netstate );
3801
3802         name = PRVM_G_STRING( OFS_PARM0 );
3803         VM_CheckEmptyString( name );
3804
3805         state = (clvideostate_t)((int)PRVM_G_FLOAT( OFS_PARM1 ));
3806
3807         video = CL_GetVideoByName( name );
3808         if( video && state > CLVIDEO_UNUSED && state < CLVIDEO_STATECOUNT )
3809                 CL_SetVideoState( video, state );
3810 }
3811
3812 /*
3813 ========================
3814 VM_cin_getstate
3815
3816 float cin_getstate(string name)
3817 ========================
3818 */
3819 void VM_cin_getstate( void )
3820 {
3821         const char *name;
3822         clvideo_t               *video;
3823
3824         VM_SAFEPARMCOUNT( 1, VM_cin_getstate );
3825
3826         name = PRVM_G_STRING( OFS_PARM0 );
3827         VM_CheckEmptyString( name );
3828
3829         video = CL_GetVideoByName( name );
3830         if( video )
3831                 PRVM_G_FLOAT( OFS_RETURN ) = (int)video->state;
3832         else
3833                 PRVM_G_FLOAT( OFS_RETURN ) = 0;
3834 }
3835
3836 /*
3837 ========================
3838 VM_cin_restart
3839
3840 void cin_restart(string name)
3841 ========================
3842 */
3843 void VM_cin_restart( void )
3844 {
3845         const char *name;
3846         clvideo_t               *video;
3847
3848         VM_SAFEPARMCOUNT( 1, VM_cin_restart );
3849
3850         name = PRVM_G_STRING( OFS_PARM0 );
3851         VM_CheckEmptyString( name );
3852
3853         video = CL_GetVideoByName( name );
3854         if( video )
3855                 CL_RestartVideo( video );
3856 }
3857
3858 /*
3859 ========================
3860 VM_Gecko_Init
3861 ========================
3862 */
3863 void VM_Gecko_Init( void ) {
3864         // the prog struct is memset to 0 by Initprog? [12/6/2007 Black]
3865         // FIXME: remove the other _Init functions then, too? [12/6/2007 Black]
3866 }
3867
3868 /*
3869 ========================
3870 VM_Gecko_Destroy
3871 ========================
3872 */
3873 void VM_Gecko_Destroy( void ) {
3874         int i;
3875         for( i = 0 ; i < PRVM_MAX_GECKOINSTANCES ; i++ ) {
3876                 clgecko_t **instance = &prog->opengeckoinstances[ i ];
3877                 if( *instance ) {
3878                         CL_Gecko_DestroyBrowser( *instance );
3879                 }
3880                 *instance = NULL;
3881         }
3882 }
3883
3884 /*
3885 ========================
3886 VM_gecko_create
3887
3888 float[bool] gecko_create( string name )
3889 ========================
3890 */
3891 void VM_gecko_create( void ) {
3892         const char *name;
3893         int i;
3894         clgecko_t *instance;
3895         
3896         VM_SAFEPARMCOUNT( 1, VM_gecko_create );
3897
3898         name = PRVM_G_STRING( OFS_PARM0 );
3899         VM_CheckEmptyString( name );
3900
3901         // find an empty slot for this gecko browser..
3902         for( i = 0 ; i < PRVM_MAX_GECKOINSTANCES ; i++ ) {
3903                 if( prog->opengeckoinstances[ i ] == NULL ) {
3904                         break;
3905                 }
3906         }
3907         if( i == PRVM_MAX_GECKOINSTANCES ) {
3908                         VM_Warning("VM_gecko_create: %s ran out of gecko handles (%i)\n", PRVM_NAME, PRVM_MAX_GECKOINSTANCES);
3909                         PRVM_G_FLOAT( OFS_RETURN ) = 0;
3910                         return;
3911         }
3912
3913         instance = prog->opengeckoinstances[ i ] = CL_Gecko_CreateBrowser( name, PRVM_GetProgNr() );
3914    if( !instance ) {
3915                 // TODO: error handling [12/3/2007 Black]
3916                 PRVM_G_FLOAT( OFS_RETURN ) = 0;
3917                 return;
3918         }
3919         PRVM_G_FLOAT( OFS_RETURN ) = 1;
3920 }
3921
3922 /*
3923 ========================
3924 VM_gecko_destroy
3925
3926 void gecko_destroy( string name )
3927 ========================
3928 */
3929 void VM_gecko_destroy( void ) {
3930         const char *name;
3931         clgecko_t *instance;
3932
3933         VM_SAFEPARMCOUNT( 1, VM_gecko_destroy );
3934
3935         name = PRVM_G_STRING( OFS_PARM0 );
3936         VM_CheckEmptyString( name );
3937         instance = CL_Gecko_FindBrowser( name );
3938         if( !instance ) {
3939                 return;
3940         }
3941         CL_Gecko_DestroyBrowser( instance );
3942 }
3943
3944 /*
3945 ========================
3946 VM_gecko_navigate
3947
3948 void gecko_navigate( string name, string URI )
3949 ========================
3950 */
3951 void VM_gecko_navigate( void ) {
3952         const char *name;
3953         const char *URI;
3954         clgecko_t *instance;
3955
3956         VM_SAFEPARMCOUNT( 2, VM_gecko_navigate );
3957
3958         name = PRVM_G_STRING( OFS_PARM0 );
3959         URI = PRVM_G_STRING( OFS_PARM1 );
3960         VM_CheckEmptyString( name );
3961         VM_CheckEmptyString( URI );
3962
3963    instance = CL_Gecko_FindBrowser( name );
3964         if( !instance ) {
3965                 return;
3966         }
3967         CL_Gecko_NavigateToURI( instance, URI );
3968 }
3969
3970 /*
3971 ========================
3972 VM_gecko_keyevent
3973
3974 float[bool] gecko_keyevent( string name, float key, float eventtype ) 
3975 ========================
3976 */
3977 void VM_gecko_keyevent( void ) {
3978         const char *name;
3979         unsigned int key;
3980         clgecko_buttoneventtype_t eventtype;
3981         clgecko_t *instance;
3982
3983         VM_SAFEPARMCOUNT( 3, VM_gecko_keyevent );
3984
3985         name = PRVM_G_STRING( OFS_PARM0 );
3986         VM_CheckEmptyString( name );
3987         key = (unsigned int) PRVM_G_FLOAT( OFS_PARM1 );
3988         switch( (unsigned int) PRVM_G_FLOAT( OFS_PARM2 ) ) {
3989         case 0:
3990                 eventtype = CLG_BET_DOWN;
3991                 break;
3992         case 1:
3993                 eventtype = CLG_BET_UP;
3994                 break;
3995         case 2:
3996                 eventtype = CLG_BET_PRESS;
3997                 break;
3998         case 3:
3999                 eventtype = CLG_BET_DOUBLECLICK;
4000                 break;
4001         default:
4002                 // TODO: console printf? [12/3/2007 Black]
4003                 PRVM_G_FLOAT( OFS_RETURN ) = 0;
4004                 return;
4005         }
4006
4007         instance = CL_Gecko_FindBrowser( name );
4008         if( !instance ) {
4009                 PRVM_G_FLOAT( OFS_RETURN ) = 0;
4010                 return;
4011         }
4012
4013         PRVM_G_FLOAT( OFS_RETURN ) = (CL_Gecko_Event_Key( instance, (keynum_t) key, eventtype ) == true);
4014 }
4015
4016 /*
4017 ========================
4018 VM_gecko_movemouse
4019
4020 void gecko_mousemove( string name, float x, float y )
4021 ========================
4022 */
4023 void VM_gecko_movemouse( void ) {
4024         const char *name;
4025         float x, y;
4026         clgecko_t *instance;
4027
4028         VM_SAFEPARMCOUNT( 3, VM_gecko_movemouse );
4029
4030         name = PRVM_G_STRING( OFS_PARM0 );
4031         VM_CheckEmptyString( name );
4032         x = PRVM_G_FLOAT( OFS_PARM1 );
4033         y = PRVM_G_FLOAT( OFS_PARM2 );
4034         
4035         instance = CL_Gecko_FindBrowser( name );
4036         if( !instance ) {
4037                 return;
4038         }
4039         CL_Gecko_Event_CursorMove( instance, x, y );
4040 }
4041
4042
4043 /*
4044 ========================
4045 VM_gecko_resize
4046
4047 void gecko_resize( string name, float w, float h )
4048 ========================
4049 */
4050 void VM_gecko_resize( void ) {
4051         const char *name;
4052         float w, h;
4053         clgecko_t *instance;
4054
4055         VM_SAFEPARMCOUNT( 3, VM_gecko_movemouse );
4056
4057         name = PRVM_G_STRING( OFS_PARM0 );
4058         VM_CheckEmptyString( name );
4059         w = PRVM_G_FLOAT( OFS_PARM1 );
4060         h = PRVM_G_FLOAT( OFS_PARM2 );
4061         
4062         instance = CL_Gecko_FindBrowser( name );
4063         if( !instance ) {
4064                 return;
4065         }
4066         CL_Gecko_Resize( instance, (int) w, (int) h );
4067 }
4068
4069
4070 /*
4071 ========================
4072 VM_gecko_get_texture_extent
4073
4074 vector gecko_get_texture_extent( string name )
4075 ========================
4076 */
4077 void VM_gecko_get_texture_extent( void ) {
4078         const char *name;
4079         clgecko_t *instance;
4080
4081         VM_SAFEPARMCOUNT( 1, VM_gecko_movemouse );
4082
4083         name = PRVM_G_STRING( OFS_PARM0 );
4084         VM_CheckEmptyString( name );
4085         
4086         PRVM_G_VECTOR(OFS_RETURN)[2] = 0;
4087         instance = CL_Gecko_FindBrowser( name );
4088         if( !instance ) {
4089                 PRVM_G_VECTOR(OFS_RETURN)[0] = 0;
4090                 PRVM_G_VECTOR(OFS_RETURN)[1] = 0;
4091                 return;
4092         }
4093         CL_Gecko_GetTextureExtent( instance, 
4094                 PRVM_G_VECTOR(OFS_RETURN), PRVM_G_VECTOR(OFS_RETURN)+1 );
4095 }
4096
4097
4098
4099 /*
4100 ==============
4101 VM_makevectors
4102
4103 Writes new values for v_forward, v_up, and v_right based on angles
4104 void makevectors(vector angle)
4105 ==============
4106 */
4107 void VM_makevectors (void)
4108 {
4109         prvm_eval_t *valforward, *valright, *valup;
4110         valforward = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_forward);
4111         valright = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_right);
4112         valup = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_up);
4113         if (!valforward || !valright || !valup)
4114         {
4115                 VM_Warning("makevectors: could not find v_forward, v_right, or v_up global variables\n");
4116                 return;
4117         }
4118         VM_SAFEPARMCOUNT(1, VM_makevectors);
4119         AngleVectors (PRVM_G_VECTOR(OFS_PARM0), valforward->vector, valright->vector, valup->vector);
4120 }
4121
4122 /*
4123 ==============
4124 VM_vectorvectors
4125
4126 Writes new values for v_forward, v_up, and v_right based on the given forward vector
4127 vectorvectors(vector)
4128 ==============
4129 */
4130 void VM_vectorvectors (void)
4131 {
4132         prvm_eval_t *valforward, *valright, *valup;
4133         valforward = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_forward);
4134         valright = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_right);
4135         valup = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.v_up);
4136         if (!valforward || !valright || !valup)
4137         {
4138                 VM_Warning("vectorvectors: could not find v_forward, v_right, or v_up global variables\n");
4139                 return;
4140         }
4141         VM_SAFEPARMCOUNT(1, VM_vectorvectors);
4142         VectorNormalize2(PRVM_G_VECTOR(OFS_PARM0), valforward->vector);
4143         VectorVectors(valforward->vector, valright->vector, valup->vector);
4144 }
4145
4146 /*
4147 ========================
4148 VM_drawline
4149
4150 void drawline(float width, vector pos1, vector pos2, vector rgb, float alpha, float flags)
4151 ========================
4152 */
4153 void VM_drawline (void)
4154 {
4155         float   *c1, *c2, *rgb;
4156         float   alpha, width;
4157         unsigned char   flags;
4158
4159         VM_SAFEPARMCOUNT(6, VM_drawline);
4160         width   = PRVM_G_FLOAT(OFS_PARM0);
4161         c1              = PRVM_G_VECTOR(OFS_PARM1);
4162         c2              = PRVM_G_VECTOR(OFS_PARM2);
4163         rgb             = PRVM_G_VECTOR(OFS_PARM3);
4164         alpha   = PRVM_G_FLOAT(OFS_PARM4);
4165         flags   = (int)PRVM_G_FLOAT(OFS_PARM5);
4166         DrawQ_Line(width, c1[0], c1[1], c2[0], c2[1], rgb[0], rgb[1], rgb[2], alpha, flags);
4167 }
4168
4169 // float(float number, float quantity) bitshift (EXT_BITSHIFT)
4170 void VM_bitshift (void)
4171 {
4172         int n1, n2;
4173         VM_SAFEPARMCOUNT(2, VM_bitshift);
4174
4175         n1 = (int)fabs((float)((int)PRVM_G_FLOAT(OFS_PARM0)));
4176         n2 = (int)PRVM_G_FLOAT(OFS_PARM1);
4177         if(!n1)
4178                 PRVM_G_FLOAT(OFS_RETURN) = n1;
4179         else
4180         if(n2 < 0)
4181                 PRVM_G_FLOAT(OFS_RETURN) = (n1 >> -n2);
4182         else
4183                 PRVM_G_FLOAT(OFS_RETURN) = (n1 << n2);
4184 }
4185
4186 ////////////////////////////////////////
4187 // AltString functions
4188 ////////////////////////////////////////
4189
4190 /*
4191 ========================
4192 VM_altstr_count
4193
4194 float altstr_count(string)
4195 ========================
4196 */
4197 void VM_altstr_count( void )
4198 {
4199         const char *altstr, *pos;
4200         int     count;
4201
4202         VM_SAFEPARMCOUNT( 1, VM_altstr_count );
4203
4204         altstr = PRVM_G_STRING( OFS_PARM0 );
4205         //VM_CheckEmptyString( altstr );
4206
4207         for( count = 0, pos = altstr ; *pos ; pos++ ) {
4208                 if( *pos == '\\' ) {
4209                         if( !*++pos ) {
4210                                 break;
4211                         }
4212                 } else if( *pos == '\'' ) {
4213                         count++;
4214                 }
4215         }
4216
4217         PRVM_G_FLOAT( OFS_RETURN ) = (float) (count / 2);
4218 }
4219
4220 /*
4221 ========================
4222 VM_altstr_prepare
4223
4224 string altstr_prepare(string)
4225 ========================
4226 */
4227 void VM_altstr_prepare( void )
4228 {
4229         char *out;
4230         const char *instr, *in;
4231         int size;
4232         char outstr[VM_STRINGTEMP_LENGTH];
4233
4234         VM_SAFEPARMCOUNT( 1, VM_altstr_prepare );
4235
4236         instr = PRVM_G_STRING( OFS_PARM0 );
4237
4238         for( out = outstr, in = instr, size = sizeof(outstr) - 1 ; size && *in ; size--, in++, out++ )
4239                 if( *in == '\'' ) {
4240                         *out++ = '\\';
4241                         *out = '\'';
4242                         size--;
4243                 } else
4244                         *out = *in;
4245         *out = 0;
4246
4247         PRVM_G_INT( OFS_RETURN ) = PRVM_SetTempString( outstr );
4248 }
4249
4250 /*
4251 ========================
4252 VM_altstr_get
4253
4254 string altstr_get(string, float)
4255 ========================
4256 */
4257 void VM_altstr_get( void )
4258 {
4259         const char *altstr, *pos;
4260         char *out;
4261         int count, size;
4262         char outstr[VM_STRINGTEMP_LENGTH];
4263
4264         VM_SAFEPARMCOUNT( 2, VM_altstr_get );
4265
4266         altstr = PRVM_G_STRING( OFS_PARM0 );
4267
4268         count = (int)PRVM_G_FLOAT( OFS_PARM1 );
4269         count = count * 2 + 1;
4270
4271         for( pos = altstr ; *pos && count ; pos++ )
4272                 if( *pos == '\\' ) {
4273                         if( !*++pos )
4274                                 break;
4275                 } else if( *pos == '\'' )
4276                         count--;
4277
4278         if( !*pos ) {
4279                 PRVM_G_INT( OFS_RETURN ) = 0;
4280                 return;
4281         }
4282
4283         for( out = outstr, size = sizeof(outstr) - 1 ; size && *pos ; size--, pos++, out++ )
4284                 if( *pos == '\\' ) {
4285                         if( !*++pos )
4286                                 break;
4287                         *out = *pos;
4288                         size--;
4289                 } else if( *pos == '\'' )
4290                         break;
4291                 else
4292                         *out = *pos;
4293
4294         *out = 0;
4295         PRVM_G_INT( OFS_RETURN ) = PRVM_SetTempString( outstr );
4296 }
4297
4298 /*
4299 ========================
4300 VM_altstr_set
4301
4302 string altstr_set(string altstr, float num, string set)
4303 ========================
4304 */
4305 void VM_altstr_set( void )
4306 {
4307     int num;
4308         const char *altstr, *str;
4309         const char *in;
4310         char *out;
4311         char outstr[VM_STRINGTEMP_LENGTH];
4312
4313         VM_SAFEPARMCOUNT( 3, VM_altstr_set );
4314
4315         altstr = PRVM_G_STRING( OFS_PARM0 );
4316
4317         num = (int)PRVM_G_FLOAT( OFS_PARM1 );
4318
4319         str = PRVM_G_STRING( OFS_PARM2 );
4320
4321         out = outstr;
4322         for( num = num * 2 + 1, in = altstr; *in && num; *out++ = *in++ )
4323                 if( *in == '\\' ) {
4324                         if( !*++in ) {
4325                                 break;
4326                         }
4327                 } else if( *in == '\'' ) {
4328                         num--;
4329                 }
4330
4331         // copy set in
4332         for( ; *str; *out++ = *str++ );
4333         // now jump over the old content
4334         for( ; *in ; in++ )
4335                 if( *in == '\'' || (*in == '\\' && !*++in) )
4336                         break;
4337
4338         strlcpy(out, in, outstr + sizeof(outstr) - out);
4339         PRVM_G_INT( OFS_RETURN ) = PRVM_SetTempString( outstr );
4340 }
4341
4342 /*
4343 ========================
4344 VM_altstr_ins
4345 insert after num
4346 string  altstr_ins(string altstr, float num, string set)
4347 ========================
4348 */
4349 void VM_altstr_ins(void)
4350 {
4351         int num;
4352         const char *setstr;
4353         const char *set;
4354         const char *instr;
4355         const char *in;
4356         char *out;
4357         char outstr[VM_STRINGTEMP_LENGTH];
4358
4359         VM_SAFEPARMCOUNT(3, VM_altstr_ins);
4360
4361         in = instr = PRVM_G_STRING( OFS_PARM0 );
4362         num = (int)PRVM_G_FLOAT( OFS_PARM1 );
4363         set = setstr = PRVM_G_STRING( OFS_PARM2 );
4364
4365         out = outstr;
4366         for( num = num * 2 + 2 ; *in && num > 0 ; *out++ = *in++ )
4367                 if( *in == '\\' ) {
4368                         if( !*++in ) {
4369                                 break;
4370                         }
4371                 } else if( *in == '\'' ) {
4372                         num--;
4373                 }
4374
4375         *out++ = '\'';
4376         for( ; *set ; *out++ = *set++ );
4377         *out++ = '\'';
4378
4379         strlcpy(out, in, outstr + sizeof(outstr) - out);
4380         PRVM_G_INT( OFS_RETURN ) = PRVM_SetTempString( outstr );
4381 }
4382
4383
4384 ////////////////////////////////////////
4385 // BufString functions
4386 ////////////////////////////////////////
4387 //[515]: string buffers support
4388
4389 static size_t stringbuffers_sortlength;
4390
4391 static void BufStr_Expand(prvm_stringbuffer_t *stringbuffer, int strindex)
4392 {
4393         if (stringbuffer->max_strings <= strindex)
4394         {
4395                 char **oldstrings = stringbuffer->strings;
4396                 stringbuffer->max_strings = max(stringbuffer->max_strings * 2, 128);
4397                 while (stringbuffer->max_strings <= strindex)
4398                         stringbuffer->max_strings *= 2;
4399                 stringbuffer->strings = (char **) Mem_Alloc(prog->progs_mempool, stringbuffer->max_strings * sizeof(stringbuffer->strings[0]));
4400                 if (stringbuffer->num_strings > 0)
4401                         memcpy(stringbuffer->strings, oldstrings, stringbuffer->num_strings * sizeof(stringbuffer->strings[0]));
4402                 if (oldstrings)
4403                         Mem_Free(oldstrings);
4404         }
4405 }
4406
4407 static void BufStr_Shrink(prvm_stringbuffer_t *stringbuffer)
4408 {
4409         // reduce num_strings if there are empty string slots at the end
4410         while (stringbuffer->num_strings > 0 && stringbuffer->strings[stringbuffer->num_strings - 1] == NULL)
4411                 stringbuffer->num_strings--;
4412
4413         // if empty, free the string pointer array
4414         if (stringbuffer->num_strings == 0)
4415         {
4416                 stringbuffer->max_strings = 0;
4417                 if (stringbuffer->strings)
4418                         Mem_Free(stringbuffer->strings);
4419                 stringbuffer->strings = NULL;
4420         }
4421 }
4422
4423 static int BufStr_SortStringsUP (const void *in1, const void *in2)
4424 {
4425         const char *a, *b;
4426         a = *((const char **) in1);
4427         b = *((const char **) in2);
4428         if(!a[0])       return 1;
4429         if(!b[0])       return -1;
4430         return strncmp(a, b, stringbuffers_sortlength);
4431 }
4432
4433 static int BufStr_SortStringsDOWN (const void *in1, const void *in2)
4434 {
4435         const char *a, *b;
4436         a = *((const char **) in1);
4437         b = *((const char **) in2);
4438         if(!a[0])       return 1;
4439         if(!b[0])       return -1;
4440         return strncmp(b, a, stringbuffers_sortlength);
4441 }
4442
4443 /*
4444 ========================
4445 VM_buf_create
4446 creates new buffer, and returns it's index, returns -1 if failed
4447 float buf_create(void) = #460;
4448 ========================
4449 */
4450 void VM_buf_create (void)
4451 {
4452         prvm_stringbuffer_t *stringbuffer;
4453         int i;
4454         VM_SAFEPARMCOUNT(0, VM_buf_create);
4455         stringbuffer = (prvm_stringbuffer_t *) Mem_ExpandableArray_AllocRecord(&prog->stringbuffersarray);
4456         for (i = 0;stringbuffer != Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, i);i++);
4457         stringbuffer->origin = PRVM_AllocationOrigin();
4458         PRVM_G_FLOAT(OFS_RETURN) = i;
4459 }
4460
4461 /*
4462 ========================
4463 VM_buf_del
4464 deletes buffer and all strings in it
4465 void buf_del(float bufhandle) = #461;
4466 ========================
4467 */
4468 void VM_buf_del (void)
4469 {
4470         prvm_stringbuffer_t *stringbuffer;
4471         VM_SAFEPARMCOUNT(1, VM_buf_del);
4472         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4473         if (stringbuffer)
4474         {
4475                 int i;
4476                 for (i = 0;i < stringbuffer->num_strings;i++)
4477                         if (stringbuffer->strings[i])
4478                                 Mem_Free(stringbuffer->strings[i]);
4479                 if (stringbuffer->strings)
4480                         Mem_Free(stringbuffer->strings);
4481                 if(stringbuffer->origin)
4482                         PRVM_Free((char *)stringbuffer->origin);
4483                 Mem_ExpandableArray_FreeRecord(&prog->stringbuffersarray, stringbuffer);
4484         }
4485         else
4486         {
4487                 VM_Warning("VM_buf_del: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4488                 return;
4489         }
4490 }
4491
4492 /*
4493 ========================
4494 VM_buf_getsize
4495 how many strings are stored in buffer
4496 float buf_getsize(float bufhandle) = #462;
4497 ========================
4498 */
4499 void VM_buf_getsize (void)
4500 {
4501         prvm_stringbuffer_t *stringbuffer;
4502         VM_SAFEPARMCOUNT(1, VM_buf_getsize);
4503
4504         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4505         if(!stringbuffer)
4506         {
4507                 PRVM_G_FLOAT(OFS_RETURN) = -1;
4508                 VM_Warning("VM_buf_getsize: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4509                 return;
4510         }
4511         else
4512                 PRVM_G_FLOAT(OFS_RETURN) = stringbuffer->num_strings;
4513 }
4514
4515 /*
4516 ========================
4517 VM_buf_copy
4518 copy all content from one buffer to another, make sure it exists
4519 void buf_copy(float bufhandle_from, float bufhandle_to) = #463;
4520 ========================
4521 */
4522 void VM_buf_copy (void)
4523 {
4524         prvm_stringbuffer_t *srcstringbuffer, *dststringbuffer;
4525         int i;
4526         VM_SAFEPARMCOUNT(2, VM_buf_copy);
4527
4528         srcstringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4529         if(!srcstringbuffer)
4530         {
4531                 VM_Warning("VM_buf_copy: invalid source buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4532                 return;
4533         }
4534         i = (int)PRVM_G_FLOAT(OFS_PARM1);
4535         if(i == (int)PRVM_G_FLOAT(OFS_PARM0))
4536         {
4537                 VM_Warning("VM_buf_copy: source == destination (%i) in %s\n", i, PRVM_NAME);
4538                 return;
4539         }
4540         dststringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4541         if(!dststringbuffer)
4542         {
4543                 VM_Warning("VM_buf_copy: invalid destination buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM1), PRVM_NAME);
4544                 return;
4545         }
4546
4547         for (i = 0;i < dststringbuffer->num_strings;i++)
4548                 if (dststringbuffer->strings[i])
4549                         Mem_Free(dststringbuffer->strings[i]);
4550         if (dststringbuffer->strings)
4551                 Mem_Free(dststringbuffer->strings);
4552         *dststringbuffer = *srcstringbuffer;
4553         if (dststringbuffer->max_strings)
4554                 dststringbuffer->strings = (char **)Mem_Alloc(prog->progs_mempool, sizeof(dststringbuffer->strings[0]) * dststringbuffer->max_strings);
4555
4556         for (i = 0;i < dststringbuffer->num_strings;i++)
4557         {
4558                 if (srcstringbuffer->strings[i])
4559                 {
4560                         size_t stringlen;
4561                         stringlen = strlen(srcstringbuffer->strings[i]) + 1;
4562                         dststringbuffer->strings[i] = (char *)Mem_Alloc(prog->progs_mempool, stringlen);
4563                         memcpy(dststringbuffer->strings[i], srcstringbuffer->strings[i], stringlen);
4564                 }
4565         }
4566 }
4567
4568 /*
4569 ========================
4570 VM_buf_sort
4571 sort buffer by beginnings of strings (cmplength defaults it's length)
4572 "backward == TRUE" means that sorting goes upside-down
4573 void buf_sort(float bufhandle, float cmplength, float backward) = #464;
4574 ========================
4575 */
4576 void VM_buf_sort (void)
4577 {
4578         prvm_stringbuffer_t *stringbuffer;
4579         VM_SAFEPARMCOUNT(3, VM_buf_sort);
4580
4581         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4582         if(!stringbuffer)
4583         {
4584                 VM_Warning("VM_buf_sort: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4585                 return;
4586         }
4587         if(stringbuffer->num_strings <= 0)
4588         {
4589                 VM_Warning("VM_buf_sort: tried to sort empty buffer %i in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4590                 return;
4591         }
4592         stringbuffers_sortlength = (int)PRVM_G_FLOAT(OFS_PARM1);
4593         if(stringbuffers_sortlength <= 0)
4594                 stringbuffers_sortlength = 0x7FFFFFFF;
4595
4596         if(!PRVM_G_FLOAT(OFS_PARM2))
4597                 qsort(stringbuffer->strings, stringbuffer->num_strings, sizeof(char*), BufStr_SortStringsUP);
4598         else
4599                 qsort(stringbuffer->strings, stringbuffer->num_strings, sizeof(char*), BufStr_SortStringsDOWN);
4600
4601         BufStr_Shrink(stringbuffer);
4602 }
4603
4604 /*
4605 ========================
4606 VM_buf_implode
4607 concantenates all buffer string into one with "glue" separator and returns it as tempstring
4608 string buf_implode(float bufhandle, string glue) = #465;
4609 ========================
4610 */
4611 void VM_buf_implode (void)
4612 {
4613         prvm_stringbuffer_t *stringbuffer;
4614         char                    k[VM_STRINGTEMP_LENGTH];
4615         const char              *sep;
4616         int                             i;
4617         size_t                  l;
4618         VM_SAFEPARMCOUNT(2, VM_buf_implode);
4619
4620         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4621         PRVM_G_INT(OFS_RETURN) = OFS_NULL;
4622         if(!stringbuffer)
4623         {
4624                 VM_Warning("VM_buf_implode: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4625                 return;
4626         }
4627         if(!stringbuffer->num_strings)
4628                 return;
4629         sep = PRVM_G_STRING(OFS_PARM1);
4630         k[0] = 0;
4631         for(l = i = 0;i < stringbuffer->num_strings;i++)
4632         {
4633                 if(stringbuffer->strings[i])
4634                 {
4635                         l += (i > 0 ? strlen(sep) : 0) + strlen(stringbuffer->strings[i]);
4636                         if (l >= sizeof(k) - 1)
4637                                 break;
4638                         strlcat(k, sep, sizeof(k));
4639                         strlcat(k, stringbuffer->strings[i], sizeof(k));
4640                 }
4641         }
4642         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(k);
4643 }
4644
4645 /*
4646 ========================
4647 VM_bufstr_get
4648 get a string from buffer, returns tempstring, dont str_unzone it!
4649 string bufstr_get(float bufhandle, float string_index) = #465;
4650 ========================
4651 */
4652 void VM_bufstr_get (void)
4653 {
4654         prvm_stringbuffer_t *stringbuffer;
4655         int                             strindex;
4656         VM_SAFEPARMCOUNT(2, VM_bufstr_get);
4657
4658         PRVM_G_INT(OFS_RETURN) = OFS_NULL;
4659         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4660         if(!stringbuffer)
4661         {
4662                 VM_Warning("VM_bufstr_get: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4663                 return;
4664         }
4665         strindex = (int)PRVM_G_FLOAT(OFS_PARM1);
4666         if (strindex < 0)
4667         {
4668                 VM_Warning("VM_bufstr_get: invalid string index %i used in %s\n", strindex, PRVM_NAME);
4669                 return;
4670         }
4671         if (strindex < stringbuffer->num_strings && stringbuffer->strings[strindex])
4672                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(stringbuffer->strings[strindex]);
4673 }
4674
4675 /*
4676 ========================
4677 VM_bufstr_set
4678 copies a string into selected slot of buffer
4679 void bufstr_set(float bufhandle, float string_index, string str) = #466;
4680 ========================
4681 */
4682 void VM_bufstr_set (void)
4683 {
4684         int                             strindex;
4685         prvm_stringbuffer_t *stringbuffer;
4686         const char              *news;
4687
4688         VM_SAFEPARMCOUNT(3, VM_bufstr_set);
4689
4690         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4691         if(!stringbuffer)
4692         {
4693                 VM_Warning("VM_bufstr_set: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4694                 return;
4695         }
4696         strindex = (int)PRVM_G_FLOAT(OFS_PARM1);
4697         if(strindex < 0 || strindex >= 1000000) // huge number of strings
4698         {
4699                 VM_Warning("VM_bufstr_set: invalid string index %i used in %s\n", strindex, PRVM_NAME);
4700                 return;
4701         }
4702
4703         BufStr_Expand(stringbuffer, strindex);
4704         stringbuffer->num_strings = max(stringbuffer->num_strings, strindex + 1);
4705
4706         if(stringbuffer->strings[strindex])
4707                 Mem_Free(stringbuffer->strings[strindex]);
4708         stringbuffer->strings[strindex] = NULL;
4709
4710         news = PRVM_G_STRING(OFS_PARM2);
4711         if (news && news[0])
4712         {
4713                 size_t alloclen = strlen(news) + 1;
4714                 stringbuffer->strings[strindex] = (char *)Mem_Alloc(prog->progs_mempool, alloclen);
4715                 memcpy(stringbuffer->strings[strindex], news, alloclen);
4716         }
4717
4718         BufStr_Shrink(stringbuffer);
4719 }
4720
4721 /*
4722 ========================
4723 VM_bufstr_add
4724 adds string to buffer in first free slot and returns its index
4725 "order == TRUE" means that string will be added after last "full" slot
4726 float bufstr_add(float bufhandle, string str, float order) = #467;
4727 ========================
4728 */
4729 void VM_bufstr_add (void)
4730 {
4731         int                             order, strindex;
4732         prvm_stringbuffer_t *stringbuffer;
4733         const char              *string;
4734         size_t                  alloclen;
4735
4736         VM_SAFEPARMCOUNT(3, VM_bufstr_add);
4737
4738         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4739         PRVM_G_FLOAT(OFS_RETURN) = -1;
4740         if(!stringbuffer)
4741         {
4742                 VM_Warning("VM_bufstr_add: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4743                 return;
4744         }
4745         string = PRVM_G_STRING(OFS_PARM1);
4746         if(!string || !string[0])
4747         {
4748                 VM_Warning("VM_bufstr_add: can not add an empty string to buffer %i in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4749                 return;
4750         }
4751         order = (int)PRVM_G_FLOAT(OFS_PARM2);
4752         if(order)
4753                 strindex = stringbuffer->num_strings;
4754         else
4755                 for (strindex = 0;strindex < stringbuffer->num_strings;strindex++)
4756                         if (stringbuffer->strings[strindex] == NULL)
4757                                 break;
4758
4759         BufStr_Expand(stringbuffer, strindex);
4760
4761         stringbuffer->num_strings = max(stringbuffer->num_strings, strindex + 1);
4762         alloclen = strlen(string) + 1;
4763         stringbuffer->strings[strindex] = (char *)Mem_Alloc(prog->progs_mempool, alloclen);
4764         memcpy(stringbuffer->strings[strindex], string, alloclen);
4765
4766         PRVM_G_FLOAT(OFS_RETURN) = strindex;
4767 }
4768
4769 /*
4770 ========================
4771 VM_bufstr_free
4772 delete string from buffer
4773 void bufstr_free(float bufhandle, float string_index) = #468;
4774 ========================
4775 */
4776 void VM_bufstr_free (void)
4777 {
4778         int                             i;
4779         prvm_stringbuffer_t     *stringbuffer;
4780         VM_SAFEPARMCOUNT(2, VM_bufstr_free);
4781
4782         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4783         if(!stringbuffer)
4784         {
4785                 VM_Warning("VM_bufstr_free: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4786                 return;
4787         }
4788         i = (int)PRVM_G_FLOAT(OFS_PARM1);
4789         if(i < 0)
4790         {
4791                 VM_Warning("VM_bufstr_free: invalid string index %i used in %s\n", i, PRVM_NAME);
4792                 return;
4793         }
4794
4795         if (i < stringbuffer->num_strings)
4796         {
4797                 if(stringbuffer->strings[i])
4798                         Mem_Free(stringbuffer->strings[i]);
4799                 stringbuffer->strings[i] = NULL;
4800         }
4801
4802         BufStr_Shrink(stringbuffer);
4803 }
4804
4805
4806
4807
4808
4809
4810
4811 void VM_buf_cvarlist(void)
4812 {
4813         cvar_t *cvar;
4814         const char *partial, *antipartial;
4815         size_t len, antilen;
4816         size_t alloclen;
4817         qboolean ispattern, antiispattern;
4818         int n;
4819         prvm_stringbuffer_t     *stringbuffer;
4820         VM_SAFEPARMCOUNTRANGE(2, 3, VM_buf_cvarlist);
4821
4822         stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
4823         if(!stringbuffer)
4824         {
4825                 VM_Warning("VM_bufstr_free: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
4826                 return;
4827         }
4828
4829         partial = PRVM_G_STRING(OFS_PARM1);
4830         if(!partial)
4831                 len = 0;
4832         else
4833                 len = strlen(partial);
4834
4835         if(prog->argc == 3)
4836                 antipartial = PRVM_G_STRING(OFS_PARM2);
4837         else
4838                 antipartial = NULL;
4839         if(!antipartial)
4840                 antilen = 0;
4841         else
4842                 antilen = strlen(antipartial);
4843         
4844         for (n = 0;n < stringbuffer->num_strings;n++)
4845                 if (stringbuffer->strings[n])
4846                         Mem_Free(stringbuffer->strings[n]);
4847         if (stringbuffer->strings)
4848                 Mem_Free(stringbuffer->strings);
4849         stringbuffer->strings = NULL;
4850
4851         ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
4852         antiispattern = antipartial && (strchr(antipartial, '*') || strchr(antipartial, '?'));
4853
4854         n = 0;
4855         for(cvar = cvar_vars; cvar; cvar = cvar->next)
4856         {
4857                 if(len && (ispattern ? !matchpattern_with_separator(cvar->name, partial, false, "", false) : strncmp(partial, cvar->name, len)))
4858                         continue;
4859
4860                 if(antilen && (antiispattern ? matchpattern_with_separator(cvar->name, antipartial, false, "", false) : !strncmp(antipartial, cvar->name, antilen)))
4861                         continue;
4862
4863                 ++n;
4864         }
4865
4866         stringbuffer->max_strings = stringbuffer->num_strings = n;
4867         if (stringbuffer->max_strings)
4868                 stringbuffer->strings = (char **)Mem_Alloc(prog->progs_mempool, sizeof(stringbuffer->strings[0]) * stringbuffer->max_strings);
4869         
4870         n = 0;
4871         for(cvar = cvar_vars; cvar; cvar = cvar->next)
4872         {
4873                 if(len && (ispattern ? !matchpattern_with_separator(cvar->name, partial, false, "", false) : strncmp(partial, cvar->name, len)))
4874                         continue;
4875
4876                 if(antilen && (antiispattern ? matchpattern_with_separator(cvar->name, antipartial, false, "", false) : !strncmp(antipartial, cvar->name, antilen)))
4877                         continue;
4878
4879                 alloclen = strlen(cvar->name) + 1;
4880                 stringbuffer->strings[n] = (char *)Mem_Alloc(prog->progs_mempool, alloclen);
4881                 memcpy(stringbuffer->strings[n], cvar->name, alloclen);
4882
4883                 ++n;
4884         }
4885 }
4886
4887
4888
4889
4890 //=============
4891
4892 /*
4893 ==============
4894 VM_changeyaw
4895
4896 This was a major timewaster in progs, so it was converted to C
4897 ==============
4898 */
4899 void VM_changeyaw (void)
4900 {
4901         prvm_edict_t            *ent;
4902         float           ideal, current, move, speed;
4903
4904         // this is called (VERY HACKISHLY) by SV_MoveToGoal, so it can not use any
4905         // parameters because they are the parameters to SV_MoveToGoal, not this
4906         //VM_SAFEPARMCOUNT(0, VM_changeyaw);
4907
4908         ent = PRVM_PROG_TO_EDICT(PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict);
4909         if (ent == prog->edicts)
4910         {
4911                 VM_Warning("changeyaw: can not modify world entity\n");
4912                 return;
4913         }
4914         if (ent->priv.server->free)
4915         {
4916                 VM_Warning("changeyaw: can not modify free entity\n");
4917                 return;
4918         }
4919         if (prog->fieldoffsets.angles < 0 || prog->fieldoffsets.ideal_yaw < 0 || prog->fieldoffsets.yaw_speed < 0)
4920         {
4921                 VM_Warning("changeyaw: angles, ideal_yaw, or yaw_speed field(s) not found\n");
4922                 return;
4923         }
4924         current = ANGLEMOD(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.angles)->vector[1]);
4925         ideal = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.ideal_yaw)->_float;
4926         speed = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.yaw_speed)->_float;
4927
4928         if (current == ideal)
4929                 return;
4930         move = ideal - current;
4931         if (ideal > current)
4932         {
4933                 if (move >= 180)
4934                         move = move - 360;
4935         }
4936         else
4937         {
4938                 if (move <= -180)
4939                         move = move + 360;
4940         }
4941         if (move > 0)
4942         {
4943                 if (move > speed)
4944                         move = speed;
4945         }
4946         else
4947         {
4948                 if (move < -speed)
4949                         move = -speed;
4950         }
4951
4952         PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.angles)->vector[1] = ANGLEMOD (current + move);
4953 }
4954
4955 /*
4956 ==============
4957 VM_changepitch
4958 ==============
4959 */
4960 void VM_changepitch (void)
4961 {
4962         prvm_edict_t            *ent;
4963         float           ideal, current, move, speed;
4964
4965         VM_SAFEPARMCOUNT(1, VM_changepitch);
4966
4967         ent = PRVM_G_EDICT(OFS_PARM0);
4968         if (ent == prog->edicts)
4969         {
4970                 VM_Warning("changepitch: can not modify world entity\n");
4971                 return;
4972         }
4973         if (ent->priv.server->free)
4974         {
4975                 VM_Warning("changepitch: can not modify free entity\n");
4976                 return;
4977         }
4978         if (prog->fieldoffsets.angles < 0 || prog->fieldoffsets.idealpitch < 0 || prog->fieldoffsets.pitch_speed < 0)
4979         {
4980                 VM_Warning("changepitch: angles, idealpitch, or pitch_speed field(s) not found\n");
4981                 return;
4982         }
4983         current = ANGLEMOD(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.angles)->vector[0]);
4984         ideal = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.idealpitch)->_float;
4985         speed = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pitch_speed)->_float;
4986
4987         if (current == ideal)
4988                 return;
4989         move = ideal - current;
4990         if (ideal > current)
4991         {
4992                 if (move >= 180)
4993                         move = move - 360;
4994         }
4995         else
4996         {
4997                 if (move <= -180)
4998                         move = move + 360;
4999         }
5000         if (move > 0)
5001         {
5002                 if (move > speed)
5003                         move = speed;
5004         }
5005         else
5006         {
5007                 if (move < -speed)
5008                         move = -speed;
5009         }
5010
5011         PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.angles)->vector[0] = ANGLEMOD (current + move);
5012 }
5013
5014
5015 void VM_uncolorstring (void)
5016 {
5017         char szNewString[VM_STRINGTEMP_LENGTH];
5018         const char *szString;
5019
5020         // Prepare Strings
5021         VM_SAFEPARMCOUNT(1, VM_uncolorstring);
5022         szString = PRVM_G_STRING(OFS_PARM0);
5023         COM_StringDecolorize(szString, 0, szNewString, sizeof(szNewString), TRUE);
5024         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(szNewString);
5025         
5026 }
5027
5028 // #221 float(string str, string sub[, float startpos]) strstrofs (FTE_STRINGS)
5029 //strstr, without generating a new string. Use in conjunction with FRIK_FILE's substring for more similar strstr.
5030 void VM_strstrofs (void)
5031 {
5032         const char *instr, *match;
5033         int firstofs;
5034         VM_SAFEPARMCOUNTRANGE(2, 3, VM_strstrofs);
5035         instr = PRVM_G_STRING(OFS_PARM0);
5036         match = PRVM_G_STRING(OFS_PARM1);
5037         firstofs = (prog->argc > 2)?(int)PRVM_G_FLOAT(OFS_PARM2):0;
5038         firstofs = u8_bytelen(instr, firstofs);
5039
5040         if (firstofs && (firstofs < 0 || firstofs > (int)strlen(instr)))
5041         {
5042                 PRVM_G_FLOAT(OFS_RETURN) = -1;
5043                 return;
5044         }
5045
5046         match = strstr(instr+firstofs, match);
5047         if (!match)
5048                 PRVM_G_FLOAT(OFS_RETURN) = -1;
5049         else
5050                 PRVM_G_FLOAT(OFS_RETURN) = match - instr;
5051 }
5052
5053 //#222 string(string s, float index) str2chr (FTE_STRINGS)
5054 void VM_str2chr (void)
5055 {
5056         const char *s;
5057         Uchar ch;
5058         int index;
5059         VM_SAFEPARMCOUNT(2, VM_str2chr);
5060         s = PRVM_G_STRING(OFS_PARM0);
5061         index = u8_bytelen(s, (int)PRVM_G_FLOAT(OFS_PARM1));
5062
5063         if((unsigned)index < strlen(s))
5064         {
5065                 ch = u8_getchar(s + index, NULL);
5066                 PRVM_G_FLOAT(OFS_RETURN) = ch;
5067         }
5068         else
5069                 PRVM_G_FLOAT(OFS_RETURN) = 0;
5070 }
5071
5072 //#223 string(float c, ...) chr2str (FTE_STRINGS)
5073 void VM_chr2str (void)
5074 {
5075         /*
5076         char    t[9];
5077         int             i;
5078         VM_SAFEPARMCOUNTRANGE(0, 8, VM_chr2str);
5079         for(i = 0;i < prog->argc && i < (int)sizeof(t) - 1;i++)
5080                 t[i] = (unsigned char)PRVM_G_FLOAT(OFS_PARM0+i*3);
5081         t[i] = 0;
5082         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(t);
5083         */
5084         char t[9 * 4 + 1];
5085         int i;
5086         size_t len = 0;
5087         VM_SAFEPARMCOUNTRANGE(0, 8, VM_chr2str);
5088         for(i = 0; i < prog->argc && len < sizeof(t)-1; ++i)
5089         {
5090                 int add = u8_fromchar((Uchar)PRVM_G_FLOAT(OFS_PARM0+i*3), t + len, sizeof(t)-1);
5091                 if(add > 0)
5092                         len += add;
5093         }
5094         t[len] = 0;
5095         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(t);
5096 }
5097
5098 static int chrconv_number(int i, int base, int conv)
5099 {
5100         i -= base;
5101         switch (conv)
5102         {
5103         default:
5104         case 5:
5105         case 6:
5106         case 0:
5107                 break;
5108         case 1:
5109                 base = '0';
5110                 break;
5111         case 2:
5112                 base = '0'+128;
5113                 break;
5114         case 3:
5115                 base = '0'-30;
5116                 break;
5117         case 4:
5118                 base = '0'+128-30;
5119                 break;
5120         }
5121         return i + base;
5122 }
5123 static int chrconv_punct(int i, int base, int conv)
5124 {
5125         i -= base;
5126         switch (conv)
5127         {
5128         default:
5129         case 0:
5130                 break;
5131         case 1:
5132                 base = 0;
5133                 break;
5134         case 2:
5135                 base = 128;
5136                 break;
5137         }
5138         return i + base;
5139 }
5140
5141 static int chrchar_alpha(int i, int basec, int baset, int convc, int convt, int charnum)
5142 {
5143         //convert case and colour seperatly...
5144
5145         i -= baset + basec;
5146         switch (convt)
5147         {
5148         default:
5149         case 0:
5150                 break;
5151         case 1:
5152                 baset = 0;
5153                 break;
5154         case 2:
5155                 baset = 128;
5156                 break;
5157
5158         case 5:
5159         case 6:
5160                 baset = 128*((charnum&1) == (convt-5));
5161                 break;
5162         }
5163
5164         switch (convc)
5165         {
5166         default:
5167         case 0:
5168                 break;
5169         case 1:
5170                 basec = 'a';
5171                 break;
5172         case 2:
5173                 basec = 'A';
5174                 break;
5175         }
5176         return i + basec + baset;
5177 }
5178 // #224 string(float ccase, float calpha, float cnum, string s, ...) strconv (FTE_STRINGS)
5179 //bulk convert a string. change case or colouring.
5180 void VM_strconv (void)
5181 {
5182         int ccase, redalpha, rednum, len, i;
5183         unsigned char resbuf[VM_STRINGTEMP_LENGTH];
5184         unsigned char *result = resbuf;
5185
5186         VM_SAFEPARMCOUNTRANGE(3, 8, VM_strconv);
5187
5188         ccase = (int) PRVM_G_FLOAT(OFS_PARM0);  //0 same, 1 lower, 2 upper
5189         redalpha = (int) PRVM_G_FLOAT(OFS_PARM1);       //0 same, 1 white, 2 red,  5 alternate, 6 alternate-alternate
5190         rednum = (int) PRVM_G_FLOAT(OFS_PARM2); //0 same, 1 white, 2 red, 3 redspecial, 4 whitespecial, 5 alternate, 6 alternate-alternate
5191         VM_VarString(3, (char *) resbuf, sizeof(resbuf));
5192         len = strlen((char *) resbuf);
5193
5194         for (i = 0; i < len; i++, result++)     //should this be done backwards?
5195         {
5196                 if (*result >= '0' && *result <= '9')   //normal numbers...
5197                         *result = chrconv_number(*result, '0', rednum);
5198                 else if (*result >= '0'+128 && *result <= '9'+128)
5199                         *result = chrconv_number(*result, '0'+128, rednum);
5200                 else if (*result >= '0'+128-30 && *result <= '9'+128-30)
5201                         *result = chrconv_number(*result, '0'+128-30, rednum);
5202                 else if (*result >= '0'-30 && *result <= '9'-30)
5203                         *result = chrconv_number(*result, '0'-30, rednum);
5204
5205                 else if (*result >= 'a' && *result <= 'z')      //normal numbers...
5206                         *result = chrchar_alpha(*result, 'a', 0, ccase, redalpha, i);
5207                 else if (*result >= 'A' && *result <= 'Z')      //normal numbers...
5208                         *result = chrchar_alpha(*result, 'A', 0, ccase, redalpha, i);
5209                 else if (*result >= 'a'+128 && *result <= 'z'+128)      //normal numbers...
5210                         *result = chrchar_alpha(*result, 'a', 128, ccase, redalpha, i);
5211                 else if (*result >= 'A'+128 && *result <= 'Z'+128)      //normal numbers...
5212                         *result = chrchar_alpha(*result, 'A', 128, ccase, redalpha, i);
5213
5214                 else if ((*result & 127) < 16 || !redalpha)     //special chars..
5215                         *result = *result;
5216                 else if (*result < 128)
5217                         *result = chrconv_punct(*result, 0, redalpha);
5218                 else
5219                         *result = chrconv_punct(*result, 128, redalpha);
5220         }
5221         *result = '\0';
5222
5223         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString((char *) resbuf);
5224 }
5225
5226 // #225 string(float chars, string s, ...) strpad (FTE_STRINGS)
5227 void VM_strpad (void)
5228 {
5229         char src[VM_STRINGTEMP_LENGTH];
5230         char destbuf[VM_STRINGTEMP_LENGTH];
5231         int pad;
5232         VM_SAFEPARMCOUNTRANGE(1, 8, VM_strpad);
5233         pad = (int) PRVM_G_FLOAT(OFS_PARM0);
5234         VM_VarString(1, src, sizeof(src));
5235
5236         // note: < 0 = left padding, > 0 = right padding,
5237         // this is reverse logic of printf!
5238         dpsnprintf(destbuf, sizeof(destbuf), "%*s", -pad, src);
5239
5240         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(destbuf);
5241 }
5242
5243 // #226 string(string info, string key, string value, ...) infoadd (FTE_STRINGS)
5244 //uses qw style \key\value strings
5245 void VM_infoadd (void)
5246 {
5247         const char *info, *key;
5248         char value[VM_STRINGTEMP_LENGTH];
5249         char temp[VM_STRINGTEMP_LENGTH];
5250
5251         VM_SAFEPARMCOUNTRANGE(2, 8, VM_infoadd);
5252         info = PRVM_G_STRING(OFS_PARM0);
5253         key = PRVM_G_STRING(OFS_PARM1);
5254         VM_VarString(2, value, sizeof(value));
5255
5256         strlcpy(temp, info, VM_STRINGTEMP_LENGTH);
5257
5258         InfoString_SetValue(temp, VM_STRINGTEMP_LENGTH, key, value);
5259
5260         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(temp);
5261 }
5262
5263 // #227 string(string info, string key) infoget (FTE_STRINGS)
5264 //uses qw style \key\value strings
5265 void VM_infoget (void)
5266 {
5267         const char *info;
5268         const char *key;
5269         char value[VM_STRINGTEMP_LENGTH];
5270
5271         VM_SAFEPARMCOUNT(2, VM_infoget);
5272         info = PRVM_G_STRING(OFS_PARM0);
5273         key = PRVM_G_STRING(OFS_PARM1);
5274
5275         InfoString_GetValue(info, key, value, VM_STRINGTEMP_LENGTH);
5276
5277         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(value);
5278 }
5279
5280 //#228 float(string s1, string s2, float len) strncmp (FTE_STRINGS)
5281 // also float(string s1, string s2) strcmp (FRIK_FILE)
5282 void VM_strncmp (void)
5283 {
5284         const char *s1, *s2;
5285         VM_SAFEPARMCOUNTRANGE(2, 3, VM_strncmp);
5286         s1 = PRVM_G_STRING(OFS_PARM0);
5287         s2 = PRVM_G_STRING(OFS_PARM1);
5288         if (prog->argc > 2)
5289         {
5290                 PRVM_G_FLOAT(OFS_RETURN) = strncmp(s1, s2, (size_t)PRVM_G_FLOAT(OFS_PARM2));
5291         }
5292         else
5293         {
5294                 PRVM_G_FLOAT(OFS_RETURN) = strcmp(s1, s2);
5295         }
5296 }
5297
5298 // #229 float(string s1, string s2) strcasecmp (FTE_STRINGS)
5299 // #230 float(string s1, string s2, float len) strncasecmp (FTE_STRINGS)
5300 void VM_strncasecmp (void)
5301 {
5302         const char *s1, *s2;
5303         VM_SAFEPARMCOUNTRANGE(2, 3, VM_strncasecmp);
5304         s1 = PRVM_G_STRING(OFS_PARM0);
5305         s2 = PRVM_G_STRING(OFS_PARM1);
5306         if (prog->argc > 2)
5307         {
5308                 PRVM_G_FLOAT(OFS_RETURN) = strncasecmp(s1, s2, (size_t)PRVM_G_FLOAT(OFS_PARM2));
5309         }
5310         else
5311         {
5312                 PRVM_G_FLOAT(OFS_RETURN) = strcasecmp(s1, s2);
5313         }
5314 }
5315
5316 // #494 float(float caseinsensitive, string s, ...) crc16
5317 void VM_crc16(void)
5318 {
5319         float insensitive;
5320         static char s[VM_STRINGTEMP_LENGTH];
5321         VM_SAFEPARMCOUNTRANGE(2, 8, VM_hash);
5322         insensitive = PRVM_G_FLOAT(OFS_PARM0);
5323         VM_VarString(1, s, sizeof(s));
5324         PRVM_G_FLOAT(OFS_RETURN) = (unsigned short) ((insensitive ? CRC_Block_CaseInsensitive : CRC_Block) ((unsigned char *) s, strlen(s)));
5325 }
5326
5327 void VM_wasfreed (void)
5328 {
5329         VM_SAFEPARMCOUNT(1, VM_wasfreed);
5330         PRVM_G_FLOAT(OFS_RETURN) = PRVM_G_EDICT(OFS_PARM0)->priv.required->free;
5331 }
5332
5333 void VM_SetTraceGlobals(const trace_t *trace)
5334 {
5335         prvm_eval_t *val;
5336         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_allsolid)))
5337                 val->_float = trace->allsolid;
5338         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_startsolid)))
5339                 val->_float = trace->startsolid;
5340         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_fraction)))
5341                 val->_float = trace->fraction;
5342         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_inwater)))
5343                 val->_float = trace->inwater;
5344         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_inopen)))
5345                 val->_float = trace->inopen;
5346         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_endpos)))
5347                 VectorCopy(trace->endpos, val->vector);
5348         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_plane_normal)))
5349                 VectorCopy(trace->plane.normal, val->vector);
5350         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_plane_dist)))
5351                 val->_float = trace->plane.dist;
5352         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_ent)))
5353                 val->edict = PRVM_EDICT_TO_PROG(trace->ent ? trace->ent : prog->edicts);
5354         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dpstartcontents)))
5355                 val->_float = trace->startsupercontents;
5356         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphitcontents)))
5357                 val->_float = trace->hitsupercontents;
5358         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphitq3surfaceflags)))
5359                 val->_float = trace->hitq3surfaceflags;
5360         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphittexturename)))
5361                 val->string = trace->hittexture ? PRVM_SetTempString(trace->hittexture->name) : 0;
5362 }
5363
5364 void VM_ClearTraceGlobals(void)
5365 {
5366         // clean up all trace globals when leaving the VM (anti-triggerbot safeguard)
5367         prvm_eval_t *val;
5368         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_allsolid)))
5369                 val->_float = 0;
5370         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_startsolid)))
5371                 val->_float = 0;
5372         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_fraction)))
5373                 val->_float = 0;
5374         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_inwater)))
5375                 val->_float = 0;
5376         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_inopen)))
5377                 val->_float = 0;
5378         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_endpos)))
5379                 VectorClear(val->vector);
5380         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_plane_normal)))
5381                 VectorClear(val->vector);
5382         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_plane_dist)))
5383                 val->_float = 0;
5384         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_ent)))
5385                 val->edict = PRVM_EDICT_TO_PROG(prog->edicts);
5386         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dpstartcontents)))
5387                 val->_float = 0;
5388         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphitcontents)))
5389                 val->_float = 0;
5390         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphitq3surfaceflags)))
5391                 val->_float = 0;
5392         if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphittexturename)))
5393                 val->string = 0;
5394 }
5395
5396 //=============
5397
5398 void VM_Cmd_Init(void)
5399 {
5400         // only init the stuff for the current prog
5401         VM_Files_Init();
5402         VM_Search_Init();
5403         VM_Gecko_Init();
5404 //      VM_BufStr_Init();
5405 }
5406
5407 void VM_Cmd_Reset(void)
5408 {
5409         CL_PurgeOwner( MENUOWNER );
5410         VM_Search_Reset();
5411         VM_Files_CloseAll();
5412         VM_Gecko_Destroy();
5413 //      VM_BufStr_ShutDown();
5414 }
5415
5416 // #510 string(string input, ...) uri_escape (DP_QC_URI_ESCAPE)
5417 // does URI escaping on a string (replace evil stuff by %AB escapes)
5418 void VM_uri_escape (void)
5419 {
5420         char src[VM_STRINGTEMP_LENGTH];
5421         char dest[VM_STRINGTEMP_LENGTH];
5422         char *p, *q;
5423         static const char *hex = "0123456789ABCDEF";
5424
5425         VM_SAFEPARMCOUNTRANGE(1, 8, VM_uri_escape);
5426         VM_VarString(0, src, sizeof(src));
5427
5428         for(p = src, q = dest; *p && q < dest + sizeof(dest) - 3; ++p)
5429         {
5430                 if((*p >= 'A' && *p <= 'Z')
5431                         || (*p >= 'a' && *p <= 'z')
5432                         || (*p >= '0' && *p <= '9')
5433                         || (*p == '-')  || (*p == '_') || (*p == '.')
5434                         || (*p == '!')  || (*p == '~') || (*p == '*')
5435                         || (*p == '\'') || (*p == '(') || (*p == ')'))
5436                         *q++ = *p;
5437                 else
5438                 {
5439                         *q++ = '%';
5440                         *q++ = hex[(*(unsigned char *)p >> 4) & 0xF];
5441                         *q++ = hex[ *(unsigned char *)p       & 0xF];
5442                 }
5443         }
5444         *q++ = 0;
5445
5446         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(dest);
5447 }
5448
5449 // #510 string(string input, ...) uri_unescape (DP_QC_URI_ESCAPE)
5450 // does URI unescaping on a string (get back the evil stuff)
5451 void VM_uri_unescape (void)
5452 {
5453         char src[VM_STRINGTEMP_LENGTH];
5454         char dest[VM_STRINGTEMP_LENGTH];
5455         char *p, *q;
5456         int hi, lo;
5457
5458         VM_SAFEPARMCOUNTRANGE(1, 8, VM_uri_unescape);
5459         VM_VarString(0, src, sizeof(src));
5460
5461         for(p = src, q = dest; *p; ) // no need to check size, because unescape can't expand
5462         {
5463                 if(*p == '%')
5464                 {
5465                         if(p[1] >= '0' && p[1] <= '9')
5466                                 hi = p[1] - '0';
5467                         else if(p[1] >= 'a' && p[1] <= 'f')
5468                                 hi = p[1] - 'a' + 10;
5469                         else if(p[1] >= 'A' && p[1] <= 'F')
5470                                 hi = p[1] - 'A' + 10;
5471                         else
5472                                 goto nohex;
5473                         if(p[2] >= '0' && p[2] <= '9')
5474                                 lo = p[2] - '0';
5475                         else if(p[2] >= 'a' && p[2] <= 'f')
5476                                 lo = p[2] - 'a' + 10;
5477                         else if(p[2] >= 'A' && p[2] <= 'F')
5478                                 lo = p[2] - 'A' + 10;
5479                         else
5480                                 goto nohex;
5481                         if(hi != 0 || lo != 0) // don't unescape NUL bytes
5482                                 *q++ = (char) (hi * 0x10 + lo);
5483                         p += 3;
5484                         continue;
5485                 }
5486
5487 nohex:
5488                 // otherwise:
5489                 *q++ = *p++;
5490         }
5491         *q++ = 0;
5492
5493         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(dest);
5494 }
5495
5496 // #502 string(string filename) whichpack (DP_QC_WHICHPACK)
5497 // returns the name of the pack containing a file, or "" if it is not in any pack (but local or non-existant)
5498 void VM_whichpack (void)
5499 {
5500         const char *fn, *pack;
5501
5502         VM_SAFEPARMCOUNT(1, VM_whichpack);
5503         fn = PRVM_G_STRING(OFS_PARM0);
5504         pack = FS_WhichPack(fn);
5505
5506         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(pack ? pack : "");
5507 }
5508
5509 typedef struct
5510 {
5511         int prognr;
5512         double starttime;
5513         float id;
5514         char buffer[MAX_INPUTLINE];
5515 }
5516 uri_to_prog_t;
5517
5518 static void uri_to_string_callback(int status, size_t length_received, unsigned char *buffer, void *cbdata)
5519 {
5520         uri_to_prog_t *handle = (uri_to_prog_t *) cbdata;
5521
5522         if(!PRVM_ProgLoaded(handle->prognr))
5523         {
5524                 // curl reply came too late... so just drop it
5525                 Z_Free(handle);
5526                 return;
5527         }
5528                 
5529         PRVM_SetProg(handle->prognr);
5530         PRVM_Begin;
5531                 if((prog->starttime == handle->starttime) && (prog->funcoffsets.URI_Get_Callback))
5532                 {
5533                         if(length_received >= sizeof(handle->buffer))
5534                                 length_received = sizeof(handle->buffer) - 1;
5535                         handle->buffer[length_received] = 0;
5536                 
5537                         PRVM_G_FLOAT(OFS_PARM0) = handle->id;
5538                         PRVM_G_FLOAT(OFS_PARM1) = status;
5539                         PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(handle->buffer);
5540                         PRVM_ExecuteProgram(prog->funcoffsets.URI_Get_Callback, "QC function URI_Get_Callback is missing");
5541                 }
5542         PRVM_End;
5543         
5544         Z_Free(handle);
5545 }
5546
5547 // uri_get() gets content from an URL and calls a callback "uri_get_callback" with it set as string; an unique ID of the transfer is returned
5548 // returns 1 on success, and then calls the callback with the ID, 0 or the HTTP status code, and the received data in a string
5549 void VM_uri_get (void)
5550 {
5551         const char *url;
5552         float id;
5553         qboolean ret;
5554         uri_to_prog_t *handle;
5555
5556         if(!prog->funcoffsets.URI_Get_Callback)
5557                 PRVM_ERROR("uri_get called by %s without URI_Get_Callback defined", PRVM_NAME);
5558
5559         VM_SAFEPARMCOUNT(2, VM_uri_get);
5560
5561         url = PRVM_G_STRING(OFS_PARM0);
5562         id = PRVM_G_FLOAT(OFS_PARM1);
5563         handle = (uri_to_prog_t *) Z_Malloc(sizeof(*handle)); // this can't be the prog's mem pool, as curl may call the callback later!
5564
5565         handle->prognr = PRVM_GetProgNr();
5566         handle->starttime = prog->starttime;
5567         handle->id = id;
5568         ret = Curl_Begin_ToMemory(url, (unsigned char *) handle->buffer, sizeof(handle->buffer), uri_to_string_callback, handle);
5569         if(ret)
5570         {
5571                 PRVM_G_INT(OFS_RETURN) = 1;
5572         }
5573         else
5574         {
5575                 Z_Free(handle);
5576                 PRVM_G_INT(OFS_RETURN) = 0;
5577         }
5578 }
5579
5580 void VM_netaddress_resolve (void)
5581 {
5582         const char *ip;
5583         char normalized[128];
5584         int port;
5585         lhnetaddress_t addr;
5586
5587         VM_SAFEPARMCOUNTRANGE(1, 2, VM_netaddress_resolve);
5588
5589         ip = PRVM_G_STRING(OFS_PARM0);
5590         port = 0;
5591         if(prog->argc > 1)
5592                 port = (int) PRVM_G_FLOAT(OFS_PARM1);
5593
5594         if(LHNETADDRESS_FromString(&addr, ip, port) && LHNETADDRESS_ToString(&addr, normalized, sizeof(normalized), prog->argc > 1))
5595                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(normalized);
5596         else
5597                 PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
5598 }
5599
5600 //string(void) getextresponse = #624; // returns the next extResponse packet that was sent to this client
5601 void VM_CL_getextresponse (void)
5602 {
5603         VM_SAFEPARMCOUNT(0,VM_argv);
5604
5605         if (cl_net_extresponse_count <= 0)
5606                 PRVM_G_INT(OFS_RETURN) = OFS_NULL;
5607         else
5608         {
5609                 int first;
5610                 --cl_net_extresponse_count;
5611                 first = (cl_net_extresponse_last + NET_EXTRESPONSE_MAX - cl_net_extresponse_count) % NET_EXTRESPONSE_MAX;
5612                 PRVM_G_INT(OFS_RETURN) = PRVM_SetEngineString(cl_net_extresponse[first]);
5613         }
5614 }
5615
5616 void VM_SV_getextresponse (void)
5617 {
5618         VM_SAFEPARMCOUNT(0,VM_argv);
5619
5620         if (sv_net_extresponse_count <= 0)
5621                 PRVM_G_INT(OFS_RETURN) = OFS_NULL;
5622         else
5623         {
5624                 int first;
5625                 --sv_net_extresponse_count;
5626                 first = (sv_net_extresponse_last + NET_EXTRESPONSE_MAX - sv_net_extresponse_count) % NET_EXTRESPONSE_MAX;
5627                 PRVM_G_INT(OFS_RETURN) = PRVM_SetEngineString(sv_net_extresponse[first]);
5628         }
5629 }
5630
5631 /*
5632 =========
5633 VM_M_callfunction
5634
5635         callfunction(...,string function_name)
5636 Extension: pass
5637 =========
5638 */
5639 mfunction_t *PRVM_ED_FindFunction (const char *name);
5640 void VM_callfunction(void)
5641 {
5642         mfunction_t *func;
5643         const char *s;
5644
5645         VM_SAFEPARMCOUNTRANGE(1, 8, VM_callfunction);
5646
5647         s = PRVM_G_STRING(OFS_PARM0+(prog->argc - 1)*3);
5648
5649         VM_CheckEmptyString(s);
5650
5651         func = PRVM_ED_FindFunction(s);
5652
5653         if(!func)
5654                 PRVM_ERROR("VM_callfunciton: function %s not found !", s);
5655         else if (func->first_statement < 0)
5656         {
5657                 // negative statements are built in functions
5658                 int builtinnumber = -func->first_statement;
5659                 prog->xfunction->builtinsprofile++;
5660                 if (builtinnumber < prog->numbuiltins && prog->builtins[builtinnumber])
5661                         prog->builtins[builtinnumber]();
5662                 else
5663                         PRVM_ERROR("No such builtin #%i in %s; most likely cause: outdated engine build. Try updating!", builtinnumber, PRVM_NAME);
5664         }
5665         else if(func - prog->functions > 0)
5666         {
5667                 prog->argc--;
5668                 PRVM_ExecuteProgram(func - prog->functions,"");
5669                 prog->argc++;
5670         }
5671 }
5672
5673 /*
5674 =========
5675 VM_isfunction
5676
5677 float   isfunction(string function_name)
5678 =========
5679 */
5680 mfunction_t *PRVM_ED_FindFunction (const char *name);
5681 void VM_isfunction(void)
5682 {
5683         mfunction_t *func;
5684         const char *s;
5685
5686         VM_SAFEPARMCOUNT(1, VM_isfunction);
5687
5688         s = PRVM_G_STRING(OFS_PARM0);
5689
5690         VM_CheckEmptyString(s);
5691
5692         func = PRVM_ED_FindFunction(s);
5693
5694         if(!func)
5695                 PRVM_G_FLOAT(OFS_RETURN) = false;
5696         else
5697                 PRVM_G_FLOAT(OFS_RETURN) = true;
5698 }
5699
5700 /*
5701 =========
5702 VM_sprintf
5703
5704 string sprintf(string format, ...)
5705 =========
5706 */
5707
5708 void VM_sprintf(void)
5709 {
5710         const char *s, *s0;
5711         char outbuf[MAX_INPUTLINE];
5712         char *o = outbuf, *end = outbuf + sizeof(outbuf), *err;
5713         int argpos = 1;
5714         int width, precision, thisarg, flags;
5715         char formatbuf[16];
5716         char *f;
5717         qboolean isfloat;
5718 #define PRINTF_ALTERNATE 1
5719 #define PRINTF_ZEROPAD 2
5720 #define PRINTF_LEFT 4
5721 #define PRINTF_SPACEPOSITIVE 8
5722 #define PRINTF_SIGNPOSITIVE 16
5723
5724         formatbuf[0] = '%';
5725
5726         s = PRVM_G_STRING(OFS_PARM0);
5727
5728 #define GETARG_FLOAT(a) (((a)>=1 && (a)<prog->argc) ? (PRVM_G_FLOAT(OFS_PARM0 + 3 * (a))) : 0)
5729 #define GETARG_INT(a) (((a)>=1 && (a)<prog->argc) ? (PRVM_G_INT(OFS_PARM0 + 3 * (a))) : 0)
5730 #define GETARG_STRING(a) (((a)>=1 && (a)<prog->argc) ? (PRVM_G_STRING(OFS_PARM0 + 3 * (a))) : "")
5731
5732         for(;;)
5733         {
5734                 s0 = s;
5735                 switch(*s)
5736                 {
5737                         case 0:
5738                                 goto finished;
5739                                 break;
5740                         case '%':
5741                                 ++s;
5742
5743                                 if(*s == '%')
5744                                         goto verbatim;
5745
5746                                 // complete directive format:
5747                                 // %3$*1$.*2$ld
5748                                 
5749                                 width = -1;
5750                                 precision = -1;
5751                                 thisarg = -1;
5752                                 flags = 0;
5753
5754                                 // is number following?
5755                                 if(*s >= '0' && *s <= '9')
5756                                 {
5757                                         width = strtol(s, &err, 10);
5758                                         if(!err)
5759                                         {
5760                                                 VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
5761                                                 goto finished;
5762                                         }
5763                                         if(*err == '$')
5764                                         {
5765                                                 thisarg = width;
5766                                                 width = -1;
5767                                                 s = err + 1;
5768                                         }
5769                                         else
5770                                         {
5771                                                 if(*s == '0')
5772                                                 {
5773                                                         flags |= PRINTF_ZEROPAD;
5774                                                         if(width == 0)
5775                                                                 width = -1; // it was just a flag
5776                                                 }
5777                                                 s = err;
5778                                         }
5779                                 }
5780
5781                                 if(width < 0)
5782                                 {
5783                                         for(;;)
5784                                         {
5785                                                 switch(*s)
5786                                                 {
5787                                                         case '#': flags |= PRINTF_ALTERNATE; break;
5788                                                         case '0': flags |= PRINTF_ZEROPAD; break;
5789                                                         case '-': flags |= PRINTF_LEFT; break;
5790                                                         case ' ': flags |= PRINTF_SPACEPOSITIVE; break;
5791                                                         case '+': flags |= PRINTF_SIGNPOSITIVE; break;
5792                                                         default:
5793                                                                 goto noflags;
5794                                                 }
5795                                                 ++s;
5796                                         }
5797 noflags:
5798                                         if(*s == '*')
5799                                         {
5800                                                 ++s;
5801                                                 if(*s >= '0' && *s <= '9')
5802                                                 {
5803                                                         width = strtol(s, &err, 10);
5804                                                         if(!err || *err != '$')
5805                                                         {
5806                                                                 VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
5807                                                                 goto finished;
5808                                                         }
5809                                                         s = err + 1;
5810                                                 }
5811                                                 else
5812                                                         width = argpos++;
5813                                                 width = GETARG_FLOAT(width);
5814                                         }
5815                                         else if(*s >= '0' && *s <= '9')
5816                                         {
5817                                                 width = strtol(s, &err, 10);
5818                                                 if(!err)
5819                                                 {
5820                                                         VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
5821                                                         goto finished;
5822                                                 }
5823                                                 s = err;
5824                                         }
5825                                         if(width < 0)
5826                                         {
5827                                                 flags |= PRINTF_LEFT;
5828                                                 width = -width;
5829                                         }
5830                                 }
5831
5832                                 if(*s == '.')
5833                                 {
5834                                         ++s;
5835                                         if(*s == '*')
5836                                         {
5837                                                 ++s;
5838                                                 if(*s >= '0' && *s <= '9')
5839                                                 {
5840                                                         precision = strtol(s, &err, 10);
5841                                                         if(!err || *err != '$')
5842                                                         {
5843                                                                 VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
5844                                                                 goto finished;
5845                                                         }
5846                                                         s = err + 1;
5847                                                 }
5848                                                 else
5849                                                         precision = argpos++;
5850                                                 precision = GETARG_FLOAT(precision);
5851                                         }
5852                                         else if(*s >= '0' && *s <= '9')
5853                                         {
5854                                                 precision = strtol(s, &err, 10);
5855                                                 if(!err)
5856                                                 {
5857                                                         VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
5858                                                         goto finished;
5859                                                 }
5860                                                 s = err;
5861                                         }
5862                                         else
5863                                         {
5864                                                 VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
5865                                                 goto finished;
5866                                         }
5867                                 }
5868
5869                                 isfloat = true;
5870                                 for(;;)
5871                                 {
5872                                         switch(*s)
5873                                         {
5874                                                 case 'h': isfloat = true; break;
5875                                                 case 'l': isfloat = false; break;
5876                                                 case 'L': isfloat = false; break;
5877                                                 case 'j': break;
5878                                                 case 'z': break;
5879                                                 case 't': break;
5880                                                 default:
5881                                                         goto nolength;
5882                                         }
5883                                         ++s;
5884                                 }
5885 nolength:
5886
5887                                 if(thisarg < 0)
5888                                         thisarg = argpos++;
5889
5890                                 if(o < end - 1)
5891                                 {
5892                                         f = &formatbuf[1];
5893                                         if(*s != 's' && *s != 'c')
5894                                                 if(flags & PRINTF_ALTERNATE) *f++ = '#';
5895                                         if(flags & PRINTF_ZEROPAD) *f++ = '0';
5896                                         if(flags & PRINTF_LEFT) *f++ = '-';
5897                                         if(flags & PRINTF_SPACEPOSITIVE) *f++ = ' ';
5898                                         if(flags & PRINTF_SIGNPOSITIVE) *f++ = '+';
5899                                         *f++ = '*';
5900                                         *f++ = '.';
5901                                         *f++ = '*';
5902                                         *f++ = *s;
5903                                         *f++ = 0;
5904
5905                                         if(width < 0)
5906                                                 width = 0;
5907
5908                                         switch(*s)
5909                                         {
5910                                                 case 'd': case 'i':
5911                                                         o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (int) GETARG_FLOAT(thisarg) : (int) GETARG_INT(thisarg)));
5912                                                         break;
5913                                                 case 'o': case 'u': case 'x': case 'X':
5914                                                         o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (unsigned int) GETARG_FLOAT(thisarg) : (unsigned int) GETARG_INT(thisarg)));
5915                                                         break;
5916                                                 case 'e': case 'E': case 'f': case 'F': case 'g': case 'G':
5917                                                         if(precision < 0)
5918                                                                 precision = 6;
5919                                                         o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (double) GETARG_FLOAT(thisarg) : (double) GETARG_INT(thisarg)));
5920                                                         break;
5921                                                 case 'c':
5922                                                         if(precision < 0)
5923                                                                 precision = end - o - 1;
5924                                                         if(flags & PRINTF_ALTERNATE)
5925                                                                 o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (unsigned int) GETARG_FLOAT(thisarg) : (unsigned int) GETARG_INT(thisarg)));
5926                                                         else
5927                                                         {
5928                                                                 unsigned int c = (isfloat ? (unsigned int) GETARG_FLOAT(thisarg) : (unsigned int) GETARG_INT(thisarg));
5929                                                                 const char *buf = u8_encodech(c, NULL);
5930                                                                 if(!buf)
5931                                                                         buf = "";
5932                                                                 o += u8_strpad(o, end - o, buf, (flags & PRINTF_LEFT) != 0, width, precision);
5933                                                         }
5934                                                         break;
5935                                                 case 's':
5936                                                         if(precision < 0)
5937                                                                 precision = end - o - 1;
5938                                                         if(flags & PRINTF_ALTERNATE)
5939                                                                 o += dpsnprintf(o, end - o, formatbuf, width, precision, GETARG_STRING(thisarg));
5940                                                         else
5941                                                                 o += u8_strpad(o, end - o, GETARG_STRING(thisarg), (flags & PRINTF_LEFT) != 0, width, precision);
5942                                                         break;
5943                                                 default:
5944                                                         VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
5945                                                         goto finished;
5946                                         }
5947                                 }
5948                                 ++s;
5949                                 break;
5950                         default:
5951 verbatim:
5952                                 if(o < end - 1)
5953                                         *o++ = *s++;
5954                                 break;
5955                 }
5956         }
5957 finished:
5958         *o = 0;
5959         PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(outbuf);
5960 }