vertex arrays renamed to varray_ and exposed to rest of engine
[divverent/darkplaces.git] / cl_main.c
1 /*
2 Copyright (C) 1996-1997 Id Software, Inc.
3
4 This program is free software; you can redistribute it and/or
5 modify it under the terms of the GNU General Public License
6 as published by the Free Software Foundation; either version 2
7 of the License, or (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
12
13 See the GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
18
19 */
20 // cl_main.c  -- client main loop
21
22 #include "quakedef.h"
23 #include "cl_collision.h"
24 #include "cl_video.h"
25
26 // we need to declare some mouse variables here, because the menu system
27 // references them even when on a unix system.
28
29 // these two are not intended to be set directly
30 cvar_t cl_name = {CVAR_SAVE, "_cl_name", "player"};
31 cvar_t cl_color = {CVAR_SAVE, "_cl_color", "0"};
32 cvar_t cl_pmodel = {CVAR_SAVE, "_cl_pmodel", "0"};
33
34 cvar_t cl_shownet = {0, "cl_shownet","0"};
35 cvar_t cl_nolerp = {0, "cl_nolerp", "0"};
36
37 cvar_t cl_itembobheight = {0, "cl_itembobheight", "8"};
38 cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5"};
39
40 cvar_t lookspring = {CVAR_SAVE, "lookspring","0"};
41 cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0"};
42 cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3", 1, 30};
43
44 cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022"};
45 cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022"};
46 cvar_t m_forward = {CVAR_SAVE, "m_forward","1"};
47 cvar_t m_side = {CVAR_SAVE, "m_side","0.8"};
48
49 cvar_t freelook = {CVAR_SAVE, "freelook", "1"};
50
51 cvar_t r_draweffects = {0, "r_draweffects", "1"};
52
53 cvar_t cl_explosions = {CVAR_SAVE, "cl_explosions", "1"};
54 cvar_t cl_stainmaps = {CVAR_SAVE, "cl_stainmaps", "1"};
55
56 mempool_t *cl_scores_mempool;
57 mempool_t *cl_refdef_mempool;
58 mempool_t *cl_entities_mempool;
59
60 client_static_t cls;
61 client_state_t  cl;
62
63 int cl_max_entities;
64 int cl_max_static_entities;
65 int cl_max_temp_entities;
66 int cl_max_effects;
67 int cl_max_beams;
68 int cl_max_dlights;
69 int cl_max_lightstyle;
70 int cl_max_brushmodel_entities;
71
72 entity_t *cl_entities;
73 qbyte *cl_entities_active;
74 entity_t *cl_static_entities;
75 entity_t *cl_temp_entities;
76 cl_effect_t *cl_effects;
77 beam_t *cl_beams;
78 dlight_t *cl_dlights;
79 lightstyle_t *cl_lightstyle;
80 entity_render_t **cl_brushmodel_entities;
81
82 int cl_num_entities;
83 int cl_num_static_entities;
84 int cl_num_temp_entities;
85 int cl_num_brushmodel_entities;
86
87 /*
88 =====================
89 CL_ClearState
90
91 =====================
92 */
93 void CL_ClearState (void)
94 {
95         int i;
96
97         if (!sv.active)
98                 Host_ClearMemory ();
99
100         Mem_EmptyPool(cl_scores_mempool);
101         Mem_EmptyPool(cl_entities_mempool);
102
103 // wipe the entire cl structure
104         memset (&cl, 0, sizeof(cl));
105
106         SZ_Clear (&cls.message);
107
108         cl_num_entities = 0;
109         cl_num_static_entities = 0;
110         cl_num_temp_entities = 0;
111         cl_num_brushmodel_entities = 0;
112
113         // tweak these if the game runs out
114         cl_max_entities = MAX_EDICTS;
115         cl_max_static_entities = 256;
116         cl_max_temp_entities = 512;
117         cl_max_effects = 256;
118         cl_max_beams = 24;
119         cl_max_dlights = MAX_DLIGHTS;
120         cl_max_lightstyle = MAX_LIGHTSTYLES;
121         cl_max_brushmodel_entities = MAX_EDICTS;
122
123         cl_entities = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(entity_t));
124         cl_entities_active = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(qbyte));
125         cl_static_entities = Mem_Alloc(cl_entities_mempool, cl_max_static_entities * sizeof(entity_t));
126         cl_temp_entities = Mem_Alloc(cl_entities_mempool, cl_max_temp_entities * sizeof(entity_t));
127         cl_effects = Mem_Alloc(cl_entities_mempool, cl_max_effects * sizeof(cl_effect_t));
128         cl_beams = Mem_Alloc(cl_entities_mempool, cl_max_beams * sizeof(beam_t));
129         cl_dlights = Mem_Alloc(cl_entities_mempool, cl_max_dlights * sizeof(dlight_t));
130         cl_lightstyle = Mem_Alloc(cl_entities_mempool, cl_max_lightstyle * sizeof(lightstyle_t));
131         cl_brushmodel_entities = Mem_Alloc(cl_entities_mempool, cl_max_brushmodel_entities * sizeof(entity_render_t *));
132
133         CL_Screen_NewMap();
134
135         CL_Particles_Clear();
136
137         // LordHavoc: have to set up the baseline info for alpha and other stuff
138         for (i = 0;i < cl_max_entities;i++)
139         {
140                 ClearStateToDefault(&cl_entities[i].state_baseline);
141                 ClearStateToDefault(&cl_entities[i].state_previous);
142                 ClearStateToDefault(&cl_entities[i].state_current);
143         }
144
145         CL_CGVM_Clear();
146 }
147
148 /*
149 =====================
150 CL_Disconnect
151
152 Sends a disconnect message to the server
153 This is also called on Host_Error, so it shouldn't cause any errors
154 =====================
155 */
156 void CL_Disconnect (void)
157 {
158         if (cls.state == ca_dedicated)
159                 return;
160
161 // stop sounds (especially looping!)
162         S_StopAllSounds (true);
163
164         // clear contents blends
165         cl.cshifts[0].percent = 0;
166         cl.cshifts[1].percent = 0;
167         cl.cshifts[2].percent = 0;
168         cl.cshifts[3].percent = 0;
169
170         cl.worldmodel = NULL;
171
172         if (cls.demoplayback)
173                 CL_StopPlayback ();
174         else if (cls.state == ca_connected)
175         {
176                 if (cls.demorecording)
177                         CL_Stop_f ();
178
179                 Con_DPrintf ("Sending clc_disconnect\n");
180                 SZ_Clear (&cls.message);
181                 MSG_WriteByte (&cls.message, clc_disconnect);
182                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
183                 SZ_Clear (&cls.message);
184                 NET_Close (cls.netcon);
185                 cls.state = ca_disconnected; // prevent this code from executing again during Host_ShutdownServer
186                 // if running a local server, shut it down
187                 if (sv.active)
188                         Host_ShutdownServer(false);
189         }
190         cls.state = ca_disconnected;
191
192         cls.demoplayback = cls.timedemo = false;
193         cls.signon = 0;
194 }
195
196 void CL_Disconnect_f (void)
197 {
198         CL_Disconnect ();
199         if (sv.active)
200                 Host_ShutdownServer (false);
201 }
202
203
204
205
206 /*
207 =====================
208 CL_EstablishConnection
209
210 Host should be either "local" or a net address to be passed on
211 =====================
212 */
213 void CL_EstablishConnection (char *host)
214 {
215         if (cls.state == ca_dedicated)
216                 return;
217
218         if (cls.demoplayback)
219                 return;
220
221         CL_Disconnect ();
222
223         cls.netcon = NET_Connect (host);
224         if (!cls.netcon)
225                 Host_Error ("CL_Connect: connect failed\n");
226         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
227
228         cls.demonum = -1;                       // not in the demo loop now
229         cls.state = ca_connected;
230         cls.signon = 0;                         // need all the signon messages before playing
231
232         CL_ClearState ();
233 }
234
235 /*
236 ==============
237 CL_PrintEntities_f
238 ==============
239 */
240 static void CL_PrintEntities_f (void)
241 {
242         entity_t *ent;
243         int i, j;
244         char name[32];
245
246         for (i = 0, ent = cl_entities;i < cl_num_entities;i++, ent++)
247         {
248                 if (!ent->state_current.active)
249                         continue;
250
251                 if (ent->render.model)
252                         strncpy(name, ent->render.model->name, 25);
253                 else
254                         strcpy(name, "--no model--");
255                 name[25] = 0;
256                 for (j = strlen(name);j < 25;j++)
257                         name[j] = ' ';
258                 Con_Printf ("%3i: %s:%04i (%5i %5i %5i) [%3i %3i %3i] %4.2f %5.3f\n", i, name, ent->render.frame, (int) ent->render.origin[0], (int) ent->render.origin[1], (int) ent->render.origin[2], (int) ent->render.angles[0] % 360, (int) ent->render.angles[1] % 360, (int) ent->render.angles[2] % 360, ent->render.scale, ent->render.alpha);
259         }
260 }
261
262 static const vec3_t nomodelmins = {-16, -16, -16};
263 static const vec3_t nomodelmaxs = {16, 16, 16};
264 void CL_BoundingBoxForEntity(entity_render_t *ent)
265 {
266         if (ent->model)
267         {
268                 if (ent->angles[0] || ent->angles[2])
269                 {
270                         // pitch or roll
271                         VectorAdd(ent->origin, ent->model->rotatedmins, ent->mins);
272                         VectorAdd(ent->origin, ent->model->rotatedmaxs, ent->maxs);
273                 }
274                 else if (ent->angles[1])
275                 {
276                         // yaw
277                         VectorAdd(ent->origin, ent->model->yawmins, ent->mins);
278                         VectorAdd(ent->origin, ent->model->yawmaxs, ent->maxs);
279                 }
280                 else
281                 {
282                         VectorAdd(ent->origin, ent->model->normalmins, ent->mins);
283                         VectorAdd(ent->origin, ent->model->normalmaxs, ent->maxs);
284                 }
285         }
286         else
287         {
288                 VectorAdd(ent->origin, nomodelmins, ent->mins);
289                 VectorAdd(ent->origin, nomodelmaxs, ent->maxs);
290         }
291 }
292
293 void CL_LerpUpdate(entity_t *e)
294 {
295         entity_persistent_t *p;
296         entity_render_t *r;
297         p = &e->persistent;
298         r = &e->render;
299
300         if (p->modelindex != e->state_current.modelindex)
301         {
302                 // reset all interpolation information
303                 p->modelindex = e->state_current.modelindex;
304                 p->frame1 = p->frame2 = e->state_current.frame;
305                 p->frame1time = p->frame2time = cl.time;
306                 p->framelerp = 1;
307         }
308         else if (p->frame2 != e->state_current.frame)
309         {
310                 // transition to new frame
311                 p->frame1 = p->frame2;
312                 p->frame1time = p->frame2time;
313                 p->frame2 = e->state_current.frame;
314                 p->frame2time = cl.time;
315                 p->framelerp = 0;
316         }
317         else
318         {
319                 // update transition
320                 p->framelerp = (cl.time - p->frame2time) * 10;
321                 p->framelerp = bound(0, p->framelerp, 1);
322         }
323
324         r->model = cl.model_precache[e->state_current.modelindex];
325         Mod_CheckLoaded(r->model);
326         r->frame = e->state_current.frame;
327         r->frame1 = p->frame1;
328         r->frame2 = p->frame2;
329         r->framelerp = p->framelerp;
330         r->frame1time = p->frame1time;
331         r->frame2time = p->frame2time;
332 }
333
334 /*
335 ===============
336 CL_LerpPoint
337
338 Determines the fraction between the last two messages that the objects
339 should be put at.
340 ===============
341 */
342 static float CL_LerpPoint (void)
343 {
344         float f;
345
346         // dropped packet, or start of demo
347         if (cl.mtime[1] < cl.mtime[0] - 0.1)
348                 cl.mtime[1] = cl.mtime[0] - 0.1;
349
350         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
351
352         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
353         f = cl.mtime[0] - cl.mtime[1];
354         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
355         {
356                 cl.time = cl.mtime[0];
357                 return 1;
358         }
359
360         f = (cl.time - cl.mtime[1]) / f;
361         return bound(0, f, 1);
362 }
363
364 static void CL_RelinkStaticEntities(void)
365 {
366         int i;
367         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
368         {
369                 Mod_CheckLoaded(cl_static_entities[i].render.model);
370                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
371         }
372 }
373
374 /*
375 ===============
376 CL_RelinkEntities
377 ===============
378 */
379 static void CL_RelinkNetworkEntities()
380 {
381         entity_t *ent;
382         int i, effects, temp;
383         float d, bobjrotate, bobjoffset, lerp;
384         vec3_t oldorg, neworg, delta, dlightcolor, v, v2, mins, maxs;
385
386         bobjrotate = ANGLEMOD(100*cl.time);
387         if (cl_itembobheight.value)
388                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
389         else
390                 bobjoffset = 0;
391
392         // start on the entity after the world
393         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
394         {
395                 // if the object isn't active in the current network frame, skip it
396                 if (!cl_entities_active[i])
397                         continue;
398                 if (!ent->state_current.active)
399                 {
400                         cl_entities_active[i] = false;
401                         continue;
402                 }
403
404                 VectorCopy(ent->persistent.trail_origin, oldorg);
405
406                 if (!ent->state_previous.active)
407                 {
408                         // only one state available
409                         VectorCopy (ent->persistent.neworigin, neworg);
410                         VectorCopy (ent->persistent.newangles, ent->render.angles);
411                         VectorCopy (neworg, oldorg);
412                 }
413                 else
414                 {
415                         // if the delta is large, assume a teleport and don't lerp
416                         VectorSubtract(ent->persistent.neworigin, ent->persistent.oldorigin, delta);
417                         if (ent->persistent.lerpdeltatime > 0)
418                         {
419                                 lerp = (cl.time - ent->persistent.lerpstarttime) / ent->persistent.lerpdeltatime;
420                                 if (lerp < 1)
421                                 {
422                                         // interpolate the origin and angles
423                                         VectorMA(ent->persistent.oldorigin, lerp, delta, neworg);
424                                         VectorSubtract(ent->persistent.newangles, ent->persistent.oldangles, delta);
425                                         if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
426                                         if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
427                                         if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
428                                         VectorMA(ent->persistent.oldangles, lerp, delta, ent->render.angles);
429                                 }
430                                 else
431                                 {
432                                         // no interpolation
433                                         VectorCopy (ent->persistent.neworigin, neworg);
434                                         VectorCopy (ent->persistent.newangles, ent->render.angles);
435                                 }
436                         }
437                         else
438                         {
439                                 // no interpolation
440                                 VectorCopy (ent->persistent.neworigin, neworg);
441                                 VectorCopy (ent->persistent.newangles, ent->render.angles);
442                         }
443                 }
444
445                 VectorCopy (neworg, ent->persistent.trail_origin);
446                 // persistent.modelindex will be updated by CL_LerpUpdate
447                 if (ent->state_current.modelindex != ent->persistent.modelindex)
448                         VectorCopy(neworg, oldorg);
449
450                 VectorCopy (neworg, ent->render.origin);
451                 ent->render.flags = ent->state_current.flags;
452                 ent->render.effects = effects = ent->state_current.effects;
453                 if (ent->state_current.flags & RENDER_COLORMAPPED)
454                         ent->render.colormap = ent->state_current.colormap;
455                 else if (cl.scores == NULL || !ent->state_current.colormap)
456                         ent->render.colormap = -1; // no special coloring
457                 else
458                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
459                 ent->render.skinnum = ent->state_current.skin;
460                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
461                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
462
463                 // update interpolation info
464                 CL_LerpUpdate(ent);
465
466                 // handle effects now...
467                 dlightcolor[0] = 0;
468                 dlightcolor[1] = 0;
469                 dlightcolor[2] = 0;
470
471                 // LordHavoc: if the entity has no effects, don't check each
472                 if (effects)
473                 {
474                         if (effects & EF_BRIGHTFIELD)
475                                 CL_EntityParticles (ent);
476                         if (effects & EF_MUZZLEFLASH)
477                                 ent->persistent.muzzleflash = 100.0f;
478                         if (effects & EF_DIMLIGHT)
479                         {
480                                 dlightcolor[0] += 200.0f;
481                                 dlightcolor[1] += 200.0f;
482                                 dlightcolor[2] += 200.0f;
483                         }
484                         if (effects & EF_BRIGHTLIGHT)
485                         {
486                                 dlightcolor[0] += 400.0f;
487                                 dlightcolor[1] += 400.0f;
488                                 dlightcolor[2] += 400.0f;
489                         }
490                         // LordHavoc: added EF_RED and EF_BLUE
491                         if (effects & EF_RED) // red
492                         {
493                                 dlightcolor[0] += 200.0f;
494                                 dlightcolor[1] +=  20.0f;
495                                 dlightcolor[2] +=  20.0f;
496                         }
497                         if (effects & EF_BLUE) // blue
498                         {
499                                 dlightcolor[0] +=  20.0f;
500                                 dlightcolor[1] +=  20.0f;
501                                 dlightcolor[2] += 200.0f;
502                         }
503                         if (effects & EF_FLAME)
504                         {
505                                 if (ent->render.model)
506                                 {
507                                         mins[0] = neworg[0] - 16.0f;
508                                         mins[1] = neworg[1] - 16.0f;
509                                         mins[2] = neworg[2] - 16.0f;
510                                         maxs[0] = neworg[0] + 16.0f;
511                                         maxs[1] = neworg[1] + 16.0f;
512                                         maxs[2] = neworg[2] + 16.0f;
513                                         // how many flames to make
514                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
515                                         CL_FlameCube(mins, maxs, temp);
516                                 }
517                                 d = lhrandom(200, 250);
518                                 dlightcolor[0] += d * 1.0f;
519                                 dlightcolor[1] += d * 0.7f;
520                                 dlightcolor[2] += d * 0.3f;
521                         }
522                         if (effects & EF_STARDUST)
523                         {
524                                 if (ent->render.model)
525                                 {
526                                         mins[0] = neworg[0] - 16.0f;
527                                         mins[1] = neworg[1] - 16.0f;
528                                         mins[2] = neworg[2] - 16.0f;
529                                         maxs[0] = neworg[0] + 16.0f;
530                                         maxs[1] = neworg[1] + 16.0f;
531                                         maxs[2] = neworg[2] + 16.0f;
532                                         // how many particles to make
533                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
534                                         CL_Stardust(mins, maxs, temp);
535                                 }
536                                 d = 100;
537                                 dlightcolor[0] += d * 1.0f;
538                                 dlightcolor[1] += d * 0.7f;
539                                 dlightcolor[2] += d * 0.3f;
540                         }
541                 }
542
543                 if (ent->persistent.muzzleflash > 0)
544                 {
545                         AngleVectors (ent->render.angles, v, NULL, NULL);
546
547                         v2[0] = v[0] * 18 + neworg[0];
548                         v2[1] = v[1] * 18 + neworg[1];
549                         v2[2] = v[2] * 18 + neworg[2] + 16;
550                         CL_TraceLine(neworg, v2, v, NULL, 0, true);
551
552                         CL_AllocDlight (NULL, v, ent->persistent.muzzleflash, 1, 1, 1, 0, 0);
553                         ent->persistent.muzzleflash -= cl.frametime * 1000;
554                 }
555
556                 // LordHavoc: if the model has no flags, don't check each
557                 if (ent->render.model && ent->render.model->flags)
558                 {
559                         if (ent->render.model->flags & EF_ROTATE)
560                         {
561                                 ent->render.angles[1] = bobjrotate;
562                                 ent->render.origin[2] += bobjoffset;
563                         }
564                         // only do trails if present in the previous frame as well
565                         if (ent->state_previous.active)
566                         {
567                                 if (ent->render.model->flags & EF_GIB)
568                                         CL_RocketTrail (oldorg, neworg, 2, ent);
569                                 else if (ent->render.model->flags & EF_ZOMGIB)
570                                         CL_RocketTrail (oldorg, neworg, 4, ent);
571                                 else if (ent->render.model->flags & EF_TRACER)
572                                 {
573                                         CL_RocketTrail (oldorg, neworg, 3, ent);
574                                         dlightcolor[0] += 0x10;
575                                         dlightcolor[1] += 0x40;
576                                         dlightcolor[2] += 0x10;
577                                 }
578                                 else if (ent->render.model->flags & EF_TRACER2)
579                                 {
580                                         CL_RocketTrail (oldorg, neworg, 5, ent);
581                                         dlightcolor[0] += 0x50;
582                                         dlightcolor[1] += 0x30;
583                                         dlightcolor[2] += 0x10;
584                                 }
585                                 else if (ent->render.model->flags & EF_ROCKET)
586                                 {
587                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
588                                         dlightcolor[0] += 200.0f;
589                                         dlightcolor[1] += 160.0f;
590                                         dlightcolor[2] +=  80.0f;
591                                 }
592                                 else if (ent->render.model->flags & EF_GRENADE)
593                                 {
594                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility (cigar smoke)
595                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
596                                         else
597                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
598                                 }
599                                 else if (ent->render.model->flags & EF_TRACER3)
600                                 {
601                                         CL_RocketTrail (oldorg, neworg, 6, ent);
602                                         dlightcolor[0] += 0x50;
603                                         dlightcolor[1] += 0x20;
604                                         dlightcolor[2] += 0x40;
605                                 }
606                         }
607                 }
608                 // LordHavoc: customizable glow
609                 if (ent->state_current.glowsize)
610                 {
611                         // * 4 for the expansion from 0-255 to 0-1023 range,
612                         // / 255 to scale down byte colors
613                         VectorMA(dlightcolor, ent->state_current.glowsize * (4.0f / 255.0f), (qbyte *)&d_8to24table[ent->state_current.glowcolor], dlightcolor);
614                 }
615                 // LordHavoc: customizable trail
616                 if (ent->render.flags & RENDER_GLOWTRAIL)
617                         CL_RocketTrail2 (oldorg, neworg, ent->state_current.glowcolor, ent);
618
619                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
620                 {
621                         VectorCopy(neworg, v);
622                         // hack to make glowing player light shine on their gun
623                         if (i == cl.viewentity && !chase_active.integer)
624                                 v[2] += 30;
625                         CL_AllocDlight (NULL, v, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
626                 }
627
628                 if (chase_active.integer)
629                 {
630                         if (ent->render.flags & RENDER_VIEWMODEL)
631                                 continue;
632                 }
633                 else
634                 {
635                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
636                                 continue;
637                 }
638
639                 // don't show entities with no modelindex (note: this still shows
640                 // entities which have a modelindex that resolved to a NULL model)
641                 if (!ent->state_current.modelindex)
642                         continue;
643                 if (effects & EF_NODRAW)
644                         continue;
645
646                 CL_BoundingBoxForEntity(&ent->render);
647                 if (ent->render.model && ent->render.model->name[0] == '*' && ent->render.model->type == mod_brush)
648                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
649
650                 if (r_refdef.numentities < r_refdef.maxentities)
651                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
652
653                 if (cl_num_entities < i + 1)
654                         cl_num_entities = i + 1;
655         }
656 }
657
658 void CL_LerpPlayer(float frac)
659 {
660         int i;
661         float d;
662
663         if (cl.entitydatabase.numframes && cl.viewentity == cl.playerentity)
664         {
665                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
666                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
667                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
668         }
669         else
670                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
671
672         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
673
674         for (i = 0;i < 3;i++)
675                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
676
677         if (cls.demoplayback)
678         {
679                 // interpolate the angles
680                 for (i = 0;i < 3;i++)
681                 {
682                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
683                         if (d > 180)
684                                 d -= 360;
685                         else if (d < -180)
686                                 d += 360;
687                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
688                 }
689         }
690 }
691
692 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
693 {
694         int i;
695         cl_effect_t *e;
696         if (!modelindex) // sanity check
697                 return;
698         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
699         {
700                 if (e->active)
701                         continue;
702                 e->active = true;
703                 VectorCopy(org, e->origin);
704                 e->modelindex = modelindex;
705                 e->starttime = cl.time;
706                 e->startframe = startframe;
707                 e->endframe = startframe + framecount;
708                 e->framerate = framerate;
709
710                 e->frame = 0;
711                 e->frame1time = cl.time;
712                 e->frame2time = cl.time;
713                 break;
714         }
715 }
716
717 static void CL_RelinkEffects()
718 {
719         int i, intframe;
720         cl_effect_t *e;
721         entity_t *ent;
722         float frame;
723
724         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
725         {
726                 if (e->active)
727                 {
728                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
729                         intframe = frame;
730                         if (intframe < 0 || intframe >= e->endframe)
731                         {
732                                 e->active = false;
733                                 memset(e, 0, sizeof(*e));
734                                 continue;
735                         }
736
737                         if (intframe != e->frame)
738                         {
739                                 e->frame = intframe;
740                                 e->frame1time = e->frame2time;
741                                 e->frame2time = cl.time;
742                         }
743
744                         // if we're drawing effects, get a new temp entity
745                         // (NewTempEntity adds it to the render entities list for us)
746                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
747                         {
748                                 // interpolation stuff
749                                 ent->render.frame1 = intframe;
750                                 ent->render.frame2 = intframe + 1;
751                                 if (ent->render.frame2 >= e->endframe)
752                                         ent->render.frame2 = -1; // disappear
753                                 ent->render.framelerp = frame - intframe;
754                                 ent->render.frame1time = e->frame1time;
755                                 ent->render.frame2time = e->frame2time;
756
757                                 // normal stuff
758                                 VectorCopy(e->origin, ent->render.origin);
759                                 ent->render.model = cl.model_precache[e->modelindex];
760                                 ent->render.frame = ent->render.frame2;
761                                 ent->render.colormap = -1; // no special coloring
762                                 ent->render.scale = 1;
763                                 ent->render.alpha = 1;
764
765                                 CL_BoundingBoxForEntity(&ent->render);
766                         }
767                 }
768         }
769 }
770
771 void CL_RelinkWorld (void)
772 {
773         if (cl_num_entities < 1)
774                 cl_num_entities = 1;
775         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &cl_entities[0].render;
776         CL_BoundingBoxForEntity(&cl_entities[0].render);
777 }
778
779 void CL_RelinkEntities (void)
780 {
781         float frac;
782
783         // fraction from previous network update to current
784         frac = CL_LerpPoint();
785
786         CL_ClearTempEntities();
787         CL_DecayLights();
788         CL_RelinkWorld();
789         CL_RelinkBeams();
790         CL_RelinkStaticEntities();
791         CL_RelinkNetworkEntities();
792         CL_RelinkEffects();
793         CL_MoveParticles();
794
795         CL_LerpPlayer(frac);
796 }
797
798
799 /*
800 ===============
801 CL_ReadFromServer
802
803 Read all incoming data from the server
804 ===============
805 */
806 int CL_ReadFromServer (void)
807 {
808         int ret, netshown;
809
810         cl.oldtime = cl.time;
811         cl.time += cl.frametime;
812
813         netshown = false;
814         do
815         {
816                 ret = CL_GetMessage ();
817                 if (ret == -1)
818                         Host_Error ("CL_ReadFromServer: lost server connection");
819                 if (!ret)
820                         break;
821
822                 cl.last_received_message = realtime;
823
824                 if (cl_shownet.integer)
825                         netshown = true;
826
827                 CL_ParseServerMessage ();
828         }
829         while (ret && cls.state == ca_connected);
830
831         if (netshown)
832                 Con_Printf ("\n");
833
834         r_refdef.numentities = 0;
835         cl_num_entities = 0;
836         cl_num_brushmodel_entities = 0;
837
838         if (cls.state == ca_connected && cls.signon == SIGNONS)
839         {
840                 CL_RelinkEntities ();
841
842                 // run cgame code (which can add more entities)
843                 CL_CGVM_Frame();
844         }
845
846 //
847 // bring the links up to date
848 //
849         return 0;
850 }
851
852 /*
853 =================
854 CL_SendCmd
855 =================
856 */
857 void CL_SendCmd (void)
858 {
859         usercmd_t               cmd;
860
861         if (cls.state != ca_connected)
862                 return;
863
864         if (cls.signon == SIGNONS)
865         {
866         // get basic movement from keyboard
867                 CL_BaseMove (&cmd);
868
869                 IN_PreMove(); // OS independent code
870
871         // allow mice or other external controllers to add to the move
872                 IN_Move (&cmd);
873
874                 IN_PostMove(); // OS independent code
875
876         // send the unreliable message
877                 CL_SendMove (&cmd);
878         }
879 #ifndef NOROUTINGFIX
880         else if (cls.signon == 0 && !cls.demoplayback)
881         {
882                 // LordHavoc: fix for NAT routing of netquake:
883                 // bounce back a clc_nop message to the newly allocated server port,
884                 // to establish a routing connection for incoming frames,
885                 // the server waits for this before sending anything
886                 if (realtime > cl.sendnoptime)
887                 {
888                         cl.sendnoptime = realtime + 3;
889                         Con_DPrintf("sending clc_nop to get server's attention\n");
890                         {
891                                 sizebuf_t buf;
892                                 qbyte data[128];
893                                 buf.maxsize = 128;
894                                 buf.cursize = 0;
895                                 buf.data = data;
896                                 MSG_WriteByte(&buf, clc_nop);
897                                 if (NET_SendUnreliableMessage (cls.netcon, &buf) == -1)
898                                 {
899                                         Con_Printf ("CL_SendCmd: lost server connection\n");
900                                         CL_Disconnect ();
901                                 }
902                         }
903                 }
904         }
905 #endif
906
907         if (cls.demoplayback)
908         {
909                 SZ_Clear (&cls.message);
910                 return;
911         }
912
913 // send the reliable message
914         if (!cls.message.cursize)
915                 return;         // no message at all
916
917         if (!NET_CanSendMessage (cls.netcon))
918         {
919                 Con_DPrintf ("CL_WriteToServer: can't send\n");
920                 if (developer.integer)
921                         SZ_HexDumpToConsole(&cls.message);
922                 return;
923         }
924
925         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
926                 Host_Error ("CL_WriteToServer: lost server connection");
927
928         SZ_Clear (&cls.message);
929 }
930
931 // LordHavoc: pausedemo command
932 static void CL_PauseDemo_f (void)
933 {
934         cls.demopaused = !cls.demopaused;
935         if (cls.demopaused)
936                 Con_Printf("Demo paused\n");
937         else
938                 Con_Printf("Demo unpaused\n");
939 }
940
941 /*
942 ======================
943 CL_PModel_f
944 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
945 ======================
946 */
947 static void CL_PModel_f (void)
948 {
949         int i;
950         eval_t *val;
951
952         if (Cmd_Argc () == 1)
953         {
954                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
955                 return;
956         }
957         i = atoi(Cmd_Argv(1));
958
959         if (cmd_source == src_command)
960         {
961                 if (cl_pmodel.integer == i)
962                         return;
963                 Cvar_SetValue ("_cl_pmodel", i);
964                 if (cls.state == ca_connected)
965                         Cmd_ForwardToServer ();
966                 return;
967         }
968
969         host_client->pmodel = i;
970         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
971                 val->_float = i;
972 }
973
974 /*
975 ======================
976 CL_Fog_f
977 ======================
978 */
979 static void CL_Fog_f (void)
980 {
981         if (Cmd_Argc () == 1)
982         {
983                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
984                 return;
985         }
986         fog_density = atof(Cmd_Argv(1));
987         fog_red = atof(Cmd_Argv(2));
988         fog_green = atof(Cmd_Argv(3));
989         fog_blue = atof(Cmd_Argv(4));
990 }
991
992 /*
993 =================
994 CL_Init
995 =================
996 */
997 void CL_Init (void)
998 {
999         cl_scores_mempool = Mem_AllocPool("client player info");
1000         cl_entities_mempool = Mem_AllocPool("client entities");
1001         cl_refdef_mempool = Mem_AllocPool("refdef");
1002
1003         memset(&r_refdef, 0, sizeof(r_refdef));
1004         // max entities sent to renderer per frame
1005         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1006         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1007         // 256k drawqueue buffer
1008         r_refdef.maxdrawqueuesize = 256 * 1024;
1009         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1010
1011         SZ_Alloc (&cls.message, 1024, "cls.message");
1012
1013         CL_InitInput ();
1014         CL_InitTEnts ();
1015
1016 //
1017 // register our commands
1018 //
1019         Cvar_RegisterVariable (&cl_name);
1020         Cvar_RegisterVariable (&cl_color);
1021         if (gamemode == GAME_NEHAHRA)
1022                 Cvar_RegisterVariable (&cl_pmodel);
1023         Cvar_RegisterVariable (&cl_upspeed);
1024         Cvar_RegisterVariable (&cl_forwardspeed);
1025         Cvar_RegisterVariable (&cl_backspeed);
1026         Cvar_RegisterVariable (&cl_sidespeed);
1027         Cvar_RegisterVariable (&cl_movespeedkey);
1028         Cvar_RegisterVariable (&cl_yawspeed);
1029         Cvar_RegisterVariable (&cl_pitchspeed);
1030         Cvar_RegisterVariable (&cl_anglespeedkey);
1031         Cvar_RegisterVariable (&cl_shownet);
1032         Cvar_RegisterVariable (&cl_nolerp);
1033         Cvar_RegisterVariable (&lookspring);
1034         Cvar_RegisterVariable (&lookstrafe);
1035         Cvar_RegisterVariable (&sensitivity);
1036         Cvar_RegisterVariable (&freelook);
1037
1038         Cvar_RegisterVariable (&m_pitch);
1039         Cvar_RegisterVariable (&m_yaw);
1040         Cvar_RegisterVariable (&m_forward);
1041         Cvar_RegisterVariable (&m_side);
1042
1043         Cvar_RegisterVariable (&cl_itembobspeed);
1044         Cvar_RegisterVariable (&cl_itembobheight);
1045
1046         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1047         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
1048         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1049         Cmd_AddCommand ("record", CL_Record_f);
1050         Cmd_AddCommand ("stop", CL_Stop_f);
1051         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1052         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1053
1054         Cmd_AddCommand ("fog", CL_Fog_f);
1055
1056         // LordHavoc: added pausedemo
1057         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1058         if (gamemode == GAME_NEHAHRA)
1059                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1060
1061         Cvar_RegisterVariable(&r_draweffects);
1062         Cvar_RegisterVariable(&cl_explosions);
1063         Cvar_RegisterVariable(&cl_stainmaps);
1064
1065         CL_Parse_Init();
1066         CL_Particles_Init();
1067         CL_Screen_Init();
1068         CL_CGVM_Init();
1069
1070         CL_Video_Init();
1071 }
1072