added view_angles field in csqc, no longer sets pmove_org or pmove_vel
[divverent/darkplaces.git] / csprogs.c
1 #include "quakedef.h"
2 #include "progsvm.h"
3 #include "clprogdefs.h"
4 #include "csprogs.h"
5 #include "cl_collision.h"
6
7 //============================================================================
8 // Client prog handling
9 //[515]: omg !!! optimize it ! a lot of hacks here and there also :P
10
11 #define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
12 #define CSQC_BEGIN              csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
13 #define CSQC_END                prog=csqc_tmpprog;
14 static prvm_prog_t *csqc_tmpprog;
15
16 //[515]: these are required funcs
17 static char *cl_required_func[] =
18 {
19         "CSQC_Init",
20         "CSQC_InputEvent",
21         "CSQC_UpdateView",
22         "CSQC_ConsoleCommand",
23 };
24
25 static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);
26
27 void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
28 void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
29 {
30         char errorstring[4096];
31         va_list argptr;
32
33         va_start (argptr, format);
34         dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
35         va_end (argptr);
36 //      Con_Printf( "CL_VM_Error: %s\n", errorstring );
37
38         PRVM_Crash();
39         cl.csqc_loaded = false;
40
41         Cvar_SetValueQuick(&csqc_progcrc, -1);
42         Cvar_SetValueQuick(&csqc_progsize, -1);
43
44 //      Host_AbortCurrentFrame();       //[515]: hmmm... if server says it needs csqc then client MUST disconnect
45         Host_Error(va("CL_VM_Error: %s", errorstring));
46 }
47
48 //[515]: set globals before calling R_UpdateView, WEIRD CRAP
49 static void CSQC_SetGlobals (void)
50 {
51         prvm_eval_t *val;
52         CSQC_BEGIN
53                 prog->globals.client->time = cl.time;
54                 prog->globals.client->frametime = max(0, cl.time - cl.oldtime);
55                 prog->globals.client->servercommandframe = cls.servermovesequence;
56                 prog->globals.client->clientcommandframe = cl.movecmd[0].sequence;
57                 VectorCopy(cl.viewangles, prog->globals.client->input_angles);
58                 VectorCopy(cl.viewangles, cl.csqc_angles);
59                 prog->globals.client->input_buttons = cl.movecmd[0].buttons;
60                 VectorSet(prog->globals.client->input_movevalues, cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
61                 //VectorCopy(cl.movement_origin, cl.csqc_origin);
62                 Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, cl.csqc_origin);
63                 if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.view_angles)))
64                         VectorCopy(cl.viewangles, val->vector);
65                 prog->globals.client->maxclients = cl.maxclients;
66         CSQC_END
67 }
68
69 void CSQC_Predraw (prvm_edict_t *ed)
70 {
71         int b;
72         if(!ed->fields.client->predraw)
73                 return;
74         b = prog->globals.client->self;
75         prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
76         PRVM_ExecuteProgram(ed->fields.client->predraw, "CSQC_Predraw: NULL function\n");
77         prog->globals.client->self = b;
78 }
79
80 void CSQC_Think (prvm_edict_t *ed)
81 {
82         int b;
83         if(ed->fields.client->think)
84         if(ed->fields.client->nextthink && ed->fields.client->nextthink <= prog->globals.client->time)
85         {
86                 ed->fields.client->nextthink = 0;
87                 b = prog->globals.client->self;
88                 prog->globals.client->self = PRVM_EDICT_TO_PROG(ed);
89                 PRVM_ExecuteProgram(ed->fields.client->think, "CSQC_Think: NULL function\n");
90                 prog->globals.client->self = b;
91         }
92 }
93
94 extern cvar_t cl_noplayershadow;
95 qboolean CSQC_AddRenderEdict(prvm_edict_t *ed)
96 {
97         int renderflags;
98         float scale;
99         prvm_eval_t *val;
100         entity_t *e;
101         model_t *model;
102         matrix4x4_t tagmatrix, matrix2;
103
104         model = CL_GetModelFromEdict(ed);
105         if (!model)
106                 return false;
107
108         e = CL_NewTempEntity();
109         if (!e)
110                 return false;
111
112         e->render.model = model;
113         e->render.colormap = (int)ed->fields.client->colormap;
114         e->render.skinnum = (int)ed->fields.client->skin;
115         e->render.effects |= e->render.model->effects;
116         scale = 1;
117         renderflags = 0;
118         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.renderflags)) && val->_float)     renderflags = (int)val->_float;
119         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.alpha)) && val->_float)           e->render.alpha = val->_float;
120         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.scale)) && val->_float)           e->render.scale = scale = val->_float;
121         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.colormod)) && VectorLength2(val->vector)) VectorCopy(val->vector, e->render.colormod);
122         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.effects)) && val->_float) e->render.effects |= (int)val->_float;
123         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_entity)) && val->edict)
124         {
125                 int tagentity;
126                 int tagindex = 0;
127                 tagentity = val->edict;
128                 if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.tag_index)) && val->_float)
129                         tagindex = (int)val->_float;
130                 // FIXME: calculate tag matrix
131                 Matrix4x4_CreateIdentity(&tagmatrix);
132         }
133         else
134                 Matrix4x4_CreateIdentity(&tagmatrix);
135
136         if (renderflags & RF_USEAXIS)
137         {
138                 vec3_t left;
139                 VectorNegate(prog->globals.client->v_right, left);
140                 Matrix4x4_FromVectors(&matrix2, prog->globals.client->v_forward, left, prog->globals.client->v_up, ed->fields.client->origin);
141                 Matrix4x4_Scale(&matrix2, scale, 1);
142         }
143         else
144         {
145                 vec3_t angles;
146                 VectorCopy(ed->fields.client->angles, angles);
147                 // if model is alias, reverse pitch direction
148                 if (e->render.model->type == mod_alias)
149                         angles[0] = -angles[0];
150
151                 // set up the render matrix
152                 Matrix4x4_CreateFromQuakeEntity(&matrix2, ed->fields.client->origin[0], ed->fields.client->origin[1], ed->fields.client->origin[2], angles[0], angles[1], angles[2], scale);
153         }
154
155         // set up the animation data
156         // self.frame is the interpolation target (new frame)
157         // self.frame1time is the animation base time for the interpolation target
158         // self.frame2 is the interpolation start (previous frame)
159         // self.frame2time is the animation base time for the interpolation start
160         e->render.frame1 = e->render.frame2 = ed->fields.client->frame;
161         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) e->render.frame2 = val->_float;
162         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) e->render.frame2time = val->_float;
163         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) e->render.frame1time = val->_float;
164         if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) e->render.framelerp = val->_float;
165
166         // concat the matrices to make the entity relative to its tag
167         Matrix4x4_Concat(&e->render.matrix, &tagmatrix, &matrix2);
168         // make the other useful stuff
169         CL_UpdateRenderEntity(&e->render);
170
171         if(renderflags)
172         {
173                 if(renderflags & RF_VIEWMODEL)  e->render.flags |= RENDER_VIEWMODEL;
174                 if(renderflags & RF_EXTERNALMODEL)e->render.flags |= RENDER_EXTERIORMODEL;
175                 if(renderflags & RF_DEPTHHACK)  e->render.effects |= EF_NODEPTHTEST;
176                 if(renderflags & RF_ADDITIVE)           e->render.effects |= EF_ADDITIVE;
177         }
178
179         if ((e->render.colormap > 0 && e->render.colormap <= cl.maxclients) || e->render.colormap >= 1024)
180         {
181                 int cb;
182                 unsigned char *cbcolor;
183                 int palcol;
184                 if (e->render.colormap >= 1024)
185                         palcol = (unsigned char)(e->render.colormap-1024);
186                 else
187                         palcol = cl.scores[e->render.colormap-1].colors;
188
189                 cb = (palcol & 0xF) << 4;cb += (cb >= 128 && cb < 224) ? 4 : 12;
190                 cbcolor = (unsigned char *) (&palette_complete[cb]);
191                 e->render.colormap_pantscolor[0] = cbcolor[0] * (1.0f / 255.0f);
192                 e->render.colormap_pantscolor[1] = cbcolor[1] * (1.0f / 255.0f);
193                 e->render.colormap_pantscolor[2] = cbcolor[2] * (1.0f / 255.0f);
194                 cb = (palcol & 0xF0);cb += (cb >= 128 && cb < 224) ? 4 : 12;
195                 cbcolor = (unsigned char *) (&palette_complete[cb]);
196                 e->render.colormap_shirtcolor[0] = cbcolor[0] * (1.0f / 255.0f);
197                 e->render.colormap_shirtcolor[1] = cbcolor[1] * (1.0f / 255.0f);
198                 e->render.colormap_shirtcolor[2] = cbcolor[2] * (1.0f / 255.0f);
199         }
200
201         // either fullbright or lit
202         if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
203                 e->render.flags |= RENDER_LIGHT;
204         // hide player shadow during intermission or nehahra movie
205         if (!(e->render.effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
206          &&  (e->render.alpha >= 1)
207          && !(e->render.flags & RENDER_VIEWMODEL)
208          && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
209                 e->render.flags |= RENDER_SHADOW;
210         if (e->render.flags & RENDER_VIEWMODEL)
211                 e->render.flags |= RENDER_NOSELFSHADOW;
212
213         return true;
214 }
215
216 qboolean CL_VM_InputEvent (qboolean pressed, int key)
217 {
218         qboolean r;
219         if(!cl.csqc_loaded)
220                 return false;
221         CSQC_BEGIN
222                 if (!prog->funcoffsets.CSQC_InputEvent)
223                         r = false;
224                 else
225                 {
226                         prog->globals.client->time = cl.time;
227                         PRVM_G_FLOAT(OFS_PARM0) = pressed;
228                         PRVM_G_FLOAT(OFS_PARM1) = key;
229                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_InputEvent, "QC function CSQC_InputEvent is missing");
230                         r = CSQC_RETURNVAL;
231                 }
232         CSQC_END
233         return r;
234 }
235
236 qboolean CL_VM_UpdateView (void)
237 {
238 //      vec3_t oldangles;
239         if(!cl.csqc_loaded)
240                 return false;
241         CSQC_BEGIN
242                 //VectorCopy(cl.viewangles, oldangles);
243                 prog->globals.client->time = cl.time;
244                 CSQC_SetGlobals();
245                 // clear renderable entity and light lists to prevent crashes if the
246                 // CSQC_UpdateView function does not call R_ClearScene as it should
247                 r_refdef.numentities = 0;
248                 r_refdef.numlights = 0;
249                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_UpdateView, "QC function CSQC_UpdateView is missing");
250                 //VectorCopy(oldangles, cl.viewangles);
251         CSQC_END
252         return true;
253 }
254
255 extern sizebuf_t vm_tempstringsbuf;
256 qboolean CL_VM_ConsoleCommand (const char *cmd)
257 {
258         int restorevm_tempstringsbuf_cursize;
259         qboolean r;
260         if(!cl.csqc_loaded || !prog->funcoffsets.CSQC_ConsoleCommand)
261                 return false;
262         CSQC_BEGIN
263                 prog->globals.client->time = cl.time;
264                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
265                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
266                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_ConsoleCommand, "QC function CSQC_ConsoleCommand is missing");
267                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
268                 r = CSQC_RETURNVAL;
269         CSQC_END
270         return r;
271 }
272
273 qboolean CL_VM_Parse_TempEntity (void)
274 {
275         int                     t;
276         qboolean        r = false;
277         if(!cl.csqc_loaded)
278                 return false;
279         CSQC_BEGIN
280         if(prog->funcoffsets.CSQC_Parse_TempEntity)
281         {
282                 t = msg_readcount;
283                 prog->globals.client->time = cl.time;
284                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_TempEntity, "QC function CSQC_Parse_TempEntity is missing");
285                 r = CSQC_RETURNVAL;
286                 if(!r)
287                 {
288                         msg_readcount = t;
289                         msg_badread = false;
290                 }
291         }
292         CSQC_END
293         return r;
294 }
295
296 void CL_VM_Parse_StuffCmd (const char *msg)
297 {
298         int restorevm_tempstringsbuf_cursize;
299         if(msg[0] == 'c')
300         if(msg[1] == 's')
301         if(msg[2] == 'q')
302         if(msg[3] == 'c')
303         {
304                 // if this is setting a csqc variable, deprotect csqc_progcrc
305                 // temporarily so that it can be set by the cvar command,
306                 // and then reprotect it afterwards
307                 int crcflags = csqc_progcrc.flags;
308                 int sizeflags = csqc_progcrc.flags;
309                 csqc_progcrc.flags &= ~CVAR_READONLY;
310                 csqc_progsize.flags &= ~CVAR_READONLY;
311                 Cmd_ExecuteString (msg, src_command);
312                 csqc_progcrc.flags = crcflags;
313                 csqc_progsize.flags = sizeflags;
314                 return;
315         }
316         if(!cl.csqc_loaded)
317         {
318                 Cbuf_AddText(msg);
319                 return;
320         }
321         CSQC_BEGIN
322         if(prog->funcoffsets.CSQC_Parse_StuffCmd)
323         {
324                 prog->globals.client->time = cl.time;
325                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
326                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
327                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_StuffCmd, "QC function CSQC_Parse_StuffCmd is missing");
328                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
329         }
330         else
331                 Cbuf_AddText(msg);
332         CSQC_END
333 }
334
335 static void CL_VM_Parse_Print (const char *msg)
336 {
337         int restorevm_tempstringsbuf_cursize;
338         prog->globals.client->time = cl.time;
339         restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
340         PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
341         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_Print, "QC function CSQC_Parse_Print is missing");
342         vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
343 }
344
345 void CSQC_AddPrintText (const char *msg)
346 {
347         size_t i;
348         if(!cl.csqc_loaded)
349         {
350                 Con_Print(msg);
351                 return;
352         }
353         CSQC_BEGIN
354         if(prog->funcoffsets.CSQC_Parse_Print)
355         {
356                 // FIXME: is this bugged?
357                 i = strlen(msg)-1;
358                 if(msg[i] != '\n' && msg[i] != '\r')
359                 {
360                         if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
361                         {
362                                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
363                                 cl.csqc_printtextbuf[0] = 0;
364                         }
365                         else
366                                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
367                         return;
368                 }
369                 strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
370                 CL_VM_Parse_Print(cl.csqc_printtextbuf);
371                 cl.csqc_printtextbuf[0] = 0;
372         }
373         else
374                 Con_Print(msg);
375         CSQC_END
376 }
377
378 void CL_VM_Parse_CenterPrint (const char *msg)
379 {
380         int restorevm_tempstringsbuf_cursize;
381         if(!cl.csqc_loaded)
382         {
383                 SCR_CenterPrint((char*)msg);
384                 return;
385         }
386         CSQC_BEGIN
387         if(prog->funcoffsets.CSQC_Parse_CenterPrint)
388         {
389                 prog->globals.client->time = cl.time;
390                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
391                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
392                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Parse_CenterPrint, "QC function CSQC_Parse_CenterPrint is missing");
393                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
394         }
395         else
396                 SCR_CenterPrint((char*)msg);
397         CSQC_END
398 }
399
400 float CL_VM_Event (float event)         //[515]: needed ? I'd say "YES", but don't know for what :D
401 {
402         float r = 0;
403         if(!cl.csqc_loaded)
404                 return 0;
405         CSQC_BEGIN
406         if(prog->funcoffsets.CSQC_Event)
407         {
408                 prog->globals.client->time = cl.time;
409                 PRVM_G_FLOAT(OFS_PARM0) = event;
410                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Event, "QC function CSQC_Event is missing");
411                 r = CSQC_RETURNVAL;
412         }
413         CSQC_END
414         return r;
415 }
416
417 void CSQC_ReadEntities (void)
418 {
419         unsigned short entnum, oldself, realentnum;
420         if(!cl.csqc_loaded)
421         {
422                 Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
423                 return;
424         }
425
426         CSQC_BEGIN
427                 prog->globals.client->time = cl.time;
428                 oldself = prog->globals.client->self;
429                 while(1)
430                 {
431                         entnum = MSG_ReadShort();
432                         if(!entnum || msg_badread)
433                                 return;
434                         realentnum = entnum & 0x7FFF;
435                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum];
436                         if(entnum & 0x8000)
437                         {
438                                 if(prog->globals.client->self)
439                                 {
440                                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Remove, "QC function CSQC_Ent_Remove is missing");
441                                         cl.csqc_server2csqcentitynumber[realentnum] = 0;
442                                 }
443                                 else
444                                         Con_Printf("Smth bad happens in csqc...\n");    //[515]: never happens ?
445                         }
446                         else
447                         {
448                                 if(!prog->globals.client->self)
449                                 {
450                                         prvm_edict_t    *ed;
451                                         ed = PRVM_ED_Alloc();
452                                         ed->fields.client->entnum = realentnum;
453                                         prog->globals.client->self = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
454                                         PRVM_G_FLOAT(OFS_PARM0) = 1;
455                                 }
456                                 else
457                                         PRVM_G_FLOAT(OFS_PARM0) = 0;
458                                 PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Ent_Update, "QC function CSQC_Ent_Update is missing");
459                         }
460                 }
461                 prog->globals.client->self = oldself;
462         CSQC_END
463 }
464
465 void CL_VM_CB_BeginIncreaseEdicts(void)
466 {
467         int i;
468         prvm_edict_t *ent;
469
470         // links don't survive the transition, so unlink everything
471         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
472         {
473                 if (!ent->priv.server->free)
474                         World_UnlinkEdict(prog->edicts + i);
475                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
476         }
477         World_Clear(&cl.world);
478 }
479
480 void CL_VM_CB_EndIncreaseEdicts(void)
481 {
482         int i;
483         prvm_edict_t *ent;
484
485         // link every entity except world
486         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
487                 if (!ent->priv.server->free)
488                         CL_LinkEdict(ent);
489 }
490
491 void CL_VM_CB_InitEdict(prvm_edict_t *e)
492 {
493         e->priv.server->move = false; // don't move on first frame
494 }
495
496 void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
497 {
498         World_UnlinkEdict(ed);
499         memset(ed->fields.client, 0, sizeof(*ed->fields.client));
500 }
501
502 void CL_VM_CB_CountEdicts(void)
503 {
504         int             i;
505         prvm_edict_t    *ent;
506         int             active = 0, models = 0, solid = 0;
507
508         for (i=0 ; i<prog->num_edicts ; i++)
509         {
510                 ent = PRVM_EDICT_NUM(i);
511                 if (ent->priv.server->free)
512                         continue;
513                 active++;
514                 if (ent->fields.client->solid)
515                         solid++;
516                 if (ent->fields.client->model)
517                         models++;
518         }
519
520         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
521         Con_Printf("active    :%3i\n", active);
522         Con_Printf("view      :%3i\n", models);
523         Con_Printf("touch     :%3i\n", solid);
524 }
525
526 qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
527 {
528         return true;
529 }
530
531 void Cmd_ClearCsqcFuncs (void);
532
533 void CL_VM_Init (void)
534 {
535         unsigned char *csprogsdata;
536         fs_offset_t csprogsdatasize;
537         int csprogsdatacrc, requiredcrc;
538         int requiredsize;
539
540         // reset csqc_progcrc after reading it, so that changing servers doesn't
541         // expect csqc on the next server
542         requiredcrc = csqc_progcrc.integer;
543         requiredsize = csqc_progsize.integer;
544         Cvar_SetValueQuick(&csqc_progcrc, -1);
545         Cvar_SetValueQuick(&csqc_progsize, -1);
546
547         // if the server is not requesting a csprogs, then we're done here
548         if (requiredcrc < 0)
549                 return;
550
551         // see if the requested csprogs.dat file matches the requested crc
552         csprogsdatacrc = -1;
553         csprogsdata = FS_LoadFile(va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc), tempmempool, true, &csprogsdatasize);
554         if (!csprogsdata)
555                 csprogsdata = FS_LoadFile(csqc_progname.string, tempmempool, true, &csprogsdatasize);
556         if (csprogsdata)
557         {
558                 csprogsdatacrc = CRC_Block(csprogsdata, csprogsdatasize);
559                 Mem_Free(csprogsdata);
560                 if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
561                 {
562                         if (cls.demoplayback)
563                         {
564                                 Con_Printf("^1Warning: Your %s is not the same version as the demo was recorded with (CRC/size are %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
565                                 return;
566                         }
567                         else
568                         {
569                                 Con_Printf("^1Your %s is not the same version as the server (CRC is %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
570                                 CL_Disconnect();
571                                 return;
572                         }
573                 }
574         }
575         else
576         {
577                 if (requiredcrc >= 0)
578                 {
579                         if (cls.demoplayback)
580                                 Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
581                         else
582                                 Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
583                         CL_Disconnect();
584                 }
585                 return;
586         }
587
588         PRVM_Begin;
589         PRVM_InitProg(PRVM_CLIENTPROG);
590
591         // allocate the mempools
592         prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
593         prog->headercrc = CL_PROGHEADER_CRC;
594         prog->edictprivate_size = 0; // no private struct used
595         prog->name = CL_NAME;
596         prog->num_edicts = 1;
597         prog->max_edicts = 512;
598         prog->limit_edicts = CL_MAX_EDICTS;
599         prog->reserved_edicts = 0;
600         prog->edictprivate_size = sizeof(edict_engineprivate_t);
601         prog->extensionstring = vm_sv_extensions;
602         prog->builtins = vm_cl_builtins;
603         prog->numbuiltins = vm_cl_numbuiltins;
604         prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
605         prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
606         prog->init_edict = CL_VM_CB_InitEdict;
607         prog->free_edict = CL_VM_CB_FreeEdict;
608         prog->count_edicts = CL_VM_CB_CountEdicts;
609         prog->load_edict = CL_VM_CB_LoadEdict;
610         prog->init_cmd = VM_CL_Cmd_Init;
611         prog->reset_cmd = VM_CL_Cmd_Reset;
612         prog->error_cmd = CL_VM_Error;
613
614         PRVM_LoadProgs(csqc_progname.string, cl_numrequiredfunc, cl_required_func, 0, NULL, 0, NULL);
615
616         if (!prog->loaded)
617         {
618                 CL_VM_Error("CSQC ^2failed to load\n");
619                 if(!sv.active)
620                         CL_Disconnect();
621                 return;
622         }
623
624         Con_Printf("CSQC ^5loaded (crc=%i, size=%i)\n", csprogsdatacrc, (int)csprogsdatasize);
625
626         // check if OP_STATE animation is possible in this dat file
627         if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
628                 prog->flag |= PRVM_OP_STATE;
629
630         // set time
631         prog->globals.client->time = cl.time;
632
633         prog->globals.client->mapname = PRVM_SetEngineString(cl.worldmodel->name);
634         prog->globals.client->player_localentnum = cl.playerentity;
635
636         // call the prog init
637         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Init, "QC function CSQC_Init is missing");
638
639         PRVM_End;
640         cl.csqc_loaded = true;
641
642         cl.csqc_vidvars.drawcrosshair = false;
643         cl.csqc_vidvars.drawenginesbar = false;
644 }
645
646 void CL_VM_ShutDown (void)
647 {
648         Cmd_ClearCsqcFuncs();
649         Cvar_SetValueQuick(&csqc_progcrc, -1);
650         Cvar_SetValueQuick(&csqc_progsize, -1);
651         if(!cl.csqc_loaded)
652                 return;
653         CSQC_BEGIN
654                 prog->globals.client->time = cl.time;
655                 if (prog->funcoffsets.CSQC_Shutdown)
656                         PRVM_ExecuteProgram(prog->funcoffsets.CSQC_Shutdown, "QC function CSQC_Shutdown is missing");
657                 PRVM_ResetProg();
658         CSQC_END
659         Con_Print("CSQC ^1unloaded\n");
660         cl.csqc_loaded = false;
661 }