3a238c3ffa40d5340b244fc704f74d949c2fc2d4
[xonotic/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 void CL_ClearTempEntities (void)
365 {
366         cl_num_temp_entities = 0;
367 }
368
369 entity_t *CL_NewTempEntity (void)
370 {
371         entity_t *ent;
372
373         if (r_refdef.numentities >= r_refdef.maxentities)
374                 return NULL;
375         if (cl_num_temp_entities >= cl_max_temp_entities)
376                 return NULL;
377         ent = &cl_temp_entities[cl_num_temp_entities++];
378         memset (ent, 0, sizeof(*ent));
379         r_refdef.entities[r_refdef.numentities++] = &ent->render;
380
381         ent->render.colormap = -1; // no special coloring
382         ent->render.scale = 1;
383         ent->render.alpha = 1;
384         return ent;
385 }
386
387 void CL_AllocDlight (entity_render_t *ent, vec3_t org, float radius, float red, float green, float blue, float decay, float lifetime)
388 {
389         int i;
390         dlight_t *dl;
391
392         /*
393 // first look for an exact key match
394         if (ent)
395         {
396                 dl = cl_dlights;
397                 for (i = 0;i < MAX_DLIGHTS;i++, dl++)
398                         if (dl->ent == ent)
399                                 goto dlightsetup;
400         }
401         */
402
403 // then look for anything else
404         dl = cl_dlights;
405         for (i = 0;i < MAX_DLIGHTS;i++, dl++)
406                 if (!dl->radius)
407                         goto dlightsetup;
408
409         // unable to find one
410         return;
411
412 dlightsetup:
413         //Con_Printf("dlight %i : %f %f %f : %f %f %f\n", i, org[0], org[1], org[2], red * radius, green * radius, blue * radius);
414         memset (dl, 0, sizeof(*dl));
415         dl->ent = ent;
416         VectorCopy(org, dl->origin);
417         dl->radius = radius;
418         dl->color[0] = red;
419         dl->color[1] = green;
420         dl->color[2] = blue;
421         dl->decay = decay;
422         if (lifetime)
423                 dl->die = cl.time + lifetime;
424         else
425                 dl->die = 0;
426 }
427
428 void CL_DecayLights (void)
429 {
430         int i;
431         dlight_t *dl;
432         float time;
433
434         time = cl.time - cl.oldtime;
435
436         dl = cl_dlights;
437         for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
438         {
439                 if (!dl->radius)
440                         continue;
441                 if (dl->die < cl.time)
442                 {
443                         dl->radius = 0;
444                         continue;
445                 }
446
447                 dl->radius -= time*dl->decay;
448                 if (dl->radius < 0)
449                         dl->radius = 0;
450         }
451 }
452
453 void CL_RelinkWorld (void)
454 {
455         if (cl_num_entities < 1)
456                 cl_num_entities = 1;
457         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &cl_entities[0].render;
458         CL_BoundingBoxForEntity(&cl_entities[0].render);
459 }
460
461 static void CL_RelinkStaticEntities(void)
462 {
463         int i;
464         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
465         {
466                 Mod_CheckLoaded(cl_static_entities[i].render.model);
467                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
468         }
469 }
470
471 /*
472 ===============
473 CL_RelinkEntities
474 ===============
475 */
476 static void CL_RelinkNetworkEntities(void)
477 {
478         entity_t *ent;
479         int i, effects, temp;
480         float d, bobjrotate, bobjoffset, lerp;
481         vec3_t oldorg, neworg, delta, dlightcolor, v, v2, mins, maxs;
482
483         bobjrotate = ANGLEMOD(100*cl.time);
484         if (cl_itembobheight.value)
485                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
486         else
487                 bobjoffset = 0;
488
489         // start on the entity after the world
490         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
491         {
492                 // if the object isn't active in the current network frame, skip it
493                 if (!cl_entities_active[i])
494                         continue;
495                 if (!ent->state_current.active)
496                 {
497                         cl_entities_active[i] = false;
498                         continue;
499                 }
500
501                 VectorCopy(ent->persistent.trail_origin, oldorg);
502
503                 if (!ent->state_previous.active)
504                 {
505                         // only one state available
506                         VectorCopy (ent->persistent.neworigin, neworg);
507                         VectorCopy (ent->persistent.newangles, ent->render.angles);
508                         VectorCopy (neworg, oldorg);
509                 }
510                 else
511                 {
512                         // if the delta is large, assume a teleport and don't lerp
513                         VectorSubtract(ent->persistent.neworigin, ent->persistent.oldorigin, delta);
514                         if (ent->persistent.lerpdeltatime > 0)
515                         {
516                                 lerp = (cl.time - ent->persistent.lerpstarttime) / ent->persistent.lerpdeltatime;
517                                 if (lerp < 1)
518                                 {
519                                         // interpolate the origin and angles
520                                         VectorMA(ent->persistent.oldorigin, lerp, delta, neworg);
521                                         VectorSubtract(ent->persistent.newangles, ent->persistent.oldangles, delta);
522                                         if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
523                                         if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
524                                         if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
525                                         VectorMA(ent->persistent.oldangles, lerp, delta, ent->render.angles);
526                                 }
527                                 else
528                                 {
529                                         // no interpolation
530                                         VectorCopy (ent->persistent.neworigin, neworg);
531                                         VectorCopy (ent->persistent.newangles, ent->render.angles);
532                                 }
533                         }
534                         else
535                         {
536                                 // no interpolation
537                                 VectorCopy (ent->persistent.neworigin, neworg);
538                                 VectorCopy (ent->persistent.newangles, ent->render.angles);
539                         }
540                 }
541
542                 VectorCopy (neworg, ent->persistent.trail_origin);
543                 // persistent.modelindex will be updated by CL_LerpUpdate
544                 if (ent->state_current.modelindex != ent->persistent.modelindex)
545                         VectorCopy(neworg, oldorg);
546
547                 VectorCopy (neworg, ent->render.origin);
548                 ent->render.flags = ent->state_current.flags;
549                 if (i == cl.viewentity)
550                         ent->render.flags |= RENDER_EXTERIORMODEL;
551                 ent->render.effects = effects = ent->state_current.effects;
552                 if (ent->state_current.flags & RENDER_COLORMAPPED)
553                         ent->render.colormap = ent->state_current.colormap;
554                 else if (cl.scores == NULL || !ent->state_current.colormap)
555                         ent->render.colormap = -1; // no special coloring
556                 else
557                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
558                 ent->render.skinnum = ent->state_current.skin;
559                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
560                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
561
562                 // update interpolation info
563                 CL_LerpUpdate(ent);
564
565                 // handle effects now...
566                 dlightcolor[0] = 0;
567                 dlightcolor[1] = 0;
568                 dlightcolor[2] = 0;
569
570                 // LordHavoc: if the entity has no effects, don't check each
571                 if (effects)
572                 {
573                         if (effects & EF_BRIGHTFIELD)
574                                 CL_EntityParticles (ent);
575                         if (effects & EF_MUZZLEFLASH)
576                                 ent->persistent.muzzleflash = 100.0f;
577                         if (effects & EF_DIMLIGHT)
578                         {
579                                 dlightcolor[0] += 200.0f;
580                                 dlightcolor[1] += 200.0f;
581                                 dlightcolor[2] += 200.0f;
582                         }
583                         if (effects & EF_BRIGHTLIGHT)
584                         {
585                                 dlightcolor[0] += 400.0f;
586                                 dlightcolor[1] += 400.0f;
587                                 dlightcolor[2] += 400.0f;
588                         }
589                         // LordHavoc: added EF_RED and EF_BLUE
590                         if (effects & EF_RED) // red
591                         {
592                                 dlightcolor[0] += 200.0f;
593                                 dlightcolor[1] +=  20.0f;
594                                 dlightcolor[2] +=  20.0f;
595                         }
596                         if (effects & EF_BLUE) // blue
597                         {
598                                 dlightcolor[0] +=  20.0f;
599                                 dlightcolor[1] +=  20.0f;
600                                 dlightcolor[2] += 200.0f;
601                         }
602                         if (effects & EF_FLAME)
603                         {
604                                 if (ent->render.model)
605                                 {
606                                         mins[0] = neworg[0] - 16.0f;
607                                         mins[1] = neworg[1] - 16.0f;
608                                         mins[2] = neworg[2] - 16.0f;
609                                         maxs[0] = neworg[0] + 16.0f;
610                                         maxs[1] = neworg[1] + 16.0f;
611                                         maxs[2] = neworg[2] + 16.0f;
612                                         // how many flames to make
613                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
614                                         CL_FlameCube(mins, maxs, temp);
615                                 }
616                                 d = lhrandom(200, 250);
617                                 dlightcolor[0] += d * 1.0f;
618                                 dlightcolor[1] += d * 0.7f;
619                                 dlightcolor[2] += d * 0.3f;
620                         }
621                         if (effects & EF_STARDUST)
622                         {
623                                 if (ent->render.model)
624                                 {
625                                         mins[0] = neworg[0] - 16.0f;
626                                         mins[1] = neworg[1] - 16.0f;
627                                         mins[2] = neworg[2] - 16.0f;
628                                         maxs[0] = neworg[0] + 16.0f;
629                                         maxs[1] = neworg[1] + 16.0f;
630                                         maxs[2] = neworg[2] + 16.0f;
631                                         // how many particles to make
632                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
633                                         CL_Stardust(mins, maxs, temp);
634                                 }
635                                 d = 100;
636                                 dlightcolor[0] += d * 1.0f;
637                                 dlightcolor[1] += d * 0.7f;
638                                 dlightcolor[2] += d * 0.3f;
639                         }
640                 }
641
642                 if (ent->persistent.muzzleflash > 0)
643                 {
644                         AngleVectors (ent->render.angles, v, NULL, NULL);
645
646                         v2[0] = v[0] * 18 + neworg[0];
647                         v2[1] = v[1] * 18 + neworg[1];
648                         v2[2] = v[2] * 18 + neworg[2] + 16;
649                         CL_TraceLine(neworg, v2, v, NULL, 0, true, NULL);
650
651                         CL_AllocDlight (NULL, v, ent->persistent.muzzleflash, 1, 1, 1, 0, 0);
652                         ent->persistent.muzzleflash -= cl.frametime * 1000;
653                 }
654
655                 // LordHavoc: if the model has no flags, don't check each
656                 if (ent->render.model && ent->render.model->flags)
657                 {
658                         if (ent->render.model->flags & EF_ROTATE)
659                         {
660                                 ent->render.angles[1] = bobjrotate;
661                                 ent->render.origin[2] += bobjoffset;
662                         }
663                         // only do trails if present in the previous frame as well
664                         if (ent->state_previous.active)
665                         {
666                                 if (ent->render.model->flags & EF_GIB)
667                                         CL_RocketTrail (oldorg, neworg, 2, ent);
668                                 else if (ent->render.model->flags & EF_ZOMGIB)
669                                         CL_RocketTrail (oldorg, neworg, 4, ent);
670                                 else if (ent->render.model->flags & EF_TRACER)
671                                 {
672                                         CL_RocketTrail (oldorg, neworg, 3, ent);
673                                         dlightcolor[0] += 0x10;
674                                         dlightcolor[1] += 0x40;
675                                         dlightcolor[2] += 0x10;
676                                 }
677                                 else if (ent->render.model->flags & EF_TRACER2)
678                                 {
679                                         CL_RocketTrail (oldorg, neworg, 5, ent);
680                                         dlightcolor[0] += 0x50;
681                                         dlightcolor[1] += 0x30;
682                                         dlightcolor[2] += 0x10;
683                                 }
684                                 else if (ent->render.model->flags & EF_ROCKET)
685                                 {
686                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
687                                         dlightcolor[0] += 200.0f;
688                                         dlightcolor[1] += 160.0f;
689                                         dlightcolor[2] +=  80.0f;
690                                 }
691                                 else if (ent->render.model->flags & EF_GRENADE)
692                                 {
693                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility (cigar smoke)
694                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
695                                         else
696                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
697                                 }
698                                 else if (ent->render.model->flags & EF_TRACER3)
699                                 {
700                                         CL_RocketTrail (oldorg, neworg, 6, ent);
701                                         dlightcolor[0] += 0x50;
702                                         dlightcolor[1] += 0x20;
703                                         dlightcolor[2] += 0x40;
704                                 }
705                         }
706                 }
707                 // LordHavoc: customizable glow
708                 if (ent->state_current.glowsize)
709                 {
710                         // * 4 for the expansion from 0-255 to 0-1023 range,
711                         // / 255 to scale down byte colors
712                         VectorMA(dlightcolor, ent->state_current.glowsize * (4.0f / 255.0f), (qbyte *)&palette_complete[ent->state_current.glowcolor], dlightcolor);
713                 }
714                 // LordHavoc: customizable trail
715                 if (ent->render.flags & RENDER_GLOWTRAIL)
716                         CL_RocketTrail2 (oldorg, neworg, ent->state_current.glowcolor, ent);
717
718                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
719                 {
720                         VectorCopy(neworg, v);
721                         // hack to make glowing player light shine on their gun
722                         if (i == cl.viewentity/* && !chase_active.integer*/)
723                                 v[2] += 30;
724                         CL_AllocDlight (&ent->render, v, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
725                 }
726
727                 if (chase_active.integer && (ent->render.flags & RENDER_VIEWMODEL))
728                         continue;
729
730                 // don't show entities with no modelindex (note: this still shows
731                 // entities which have a modelindex that resolved to a NULL model)
732                 if (!ent->state_current.modelindex)
733                         continue;
734                 if (effects & EF_NODRAW)
735                         continue;
736
737                 CL_BoundingBoxForEntity(&ent->render);
738                 if (ent->render.model && ent->render.model->name[0] == '*' && ent->render.model->type == mod_brush)
739                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
740
741                 if (r_refdef.numentities < r_refdef.maxentities)
742                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
743
744                 if (cl_num_entities < i + 1)
745                         cl_num_entities = i + 1;
746         }
747 }
748
749 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
750 {
751         int i;
752         cl_effect_t *e;
753         if (!modelindex) // sanity check
754                 return;
755         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
756         {
757                 if (e->active)
758                         continue;
759                 e->active = true;
760                 VectorCopy(org, e->origin);
761                 e->modelindex = modelindex;
762                 e->starttime = cl.time;
763                 e->startframe = startframe;
764                 e->endframe = startframe + framecount;
765                 e->framerate = framerate;
766
767                 e->frame = 0;
768                 e->frame1time = cl.time;
769                 e->frame2time = cl.time;
770                 break;
771         }
772 }
773
774 static void CL_RelinkEffects(void)
775 {
776         int i, intframe;
777         cl_effect_t *e;
778         entity_t *ent;
779         float frame;
780
781         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
782         {
783                 if (e->active)
784                 {
785                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
786                         intframe = frame;
787                         if (intframe < 0 || intframe >= e->endframe)
788                         {
789                                 e->active = false;
790                                 memset(e, 0, sizeof(*e));
791                                 continue;
792                         }
793
794                         if (intframe != e->frame)
795                         {
796                                 e->frame = intframe;
797                                 e->frame1time = e->frame2time;
798                                 e->frame2time = cl.time;
799                         }
800
801                         // if we're drawing effects, get a new temp entity
802                         // (NewTempEntity adds it to the render entities list for us)
803                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
804                         {
805                                 // interpolation stuff
806                                 ent->render.frame1 = intframe;
807                                 ent->render.frame2 = intframe + 1;
808                                 if (ent->render.frame2 >= e->endframe)
809                                         ent->render.frame2 = -1; // disappear
810                                 ent->render.framelerp = frame - intframe;
811                                 ent->render.frame1time = e->frame1time;
812                                 ent->render.frame2time = e->frame2time;
813
814                                 // normal stuff
815                                 VectorCopy(e->origin, ent->render.origin);
816                                 ent->render.model = cl.model_precache[e->modelindex];
817                                 ent->render.frame = ent->render.frame2;
818                                 ent->render.colormap = -1; // no special coloring
819                                 ent->render.scale = 1;
820                                 ent->render.alpha = 1;
821
822                                 CL_BoundingBoxForEntity(&ent->render);
823                         }
824                 }
825         }
826 }
827
828 void CL_RelinkBeams (void)
829 {
830         int i;
831         beam_t *b;
832         vec3_t dist, org;
833         float d;
834         entity_t *ent;
835         float yaw, pitch;
836         float forward;
837
838         for (i = 0, b = cl_beams;i < cl_max_beams;i++, b++)
839         {
840                 if (!b->model || b->endtime < cl.time)
841                         continue;
842
843                 // if coming from the player, update the start position
844                 //if (b->entity == cl.viewentity)
845                 //      VectorCopy (cl_entities[cl.viewentity].render.origin, b->start);
846                 if (b->entity && cl_entities[b->entity].state_current.active)
847                 {
848                         VectorCopy (cl_entities[b->entity].render.origin, b->start);
849                         b->start[2] += 16;
850                 }
851
852                 // calculate pitch and yaw
853                 VectorSubtract (b->end, b->start, dist);
854
855                 if (dist[1] == 0 && dist[0] == 0)
856                 {
857                         yaw = 0;
858                         if (dist[2] > 0)
859                                 pitch = 90;
860                         else
861                                 pitch = 270;
862                 }
863                 else
864                 {
865                         yaw = (int) (atan2(dist[1], dist[0]) * 180 / M_PI);
866                         if (yaw < 0)
867                                 yaw += 360;
868
869                         forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
870                         pitch = (int) (atan2(dist[2], forward) * 180 / M_PI);
871                         if (pitch < 0)
872                                 pitch += 360;
873                 }
874
875                 // add new entities for the lightning
876                 VectorCopy (b->start, org);
877                 d = VectorNormalizeLength(dist);
878                 while (d > 0)
879                 {
880                         ent = CL_NewTempEntity ();
881                         if (!ent)
882                                 return;
883                         VectorCopy (org, ent->render.origin);
884                         ent->render.model = b->model;
885                         ent->render.effects = EF_FULLBRIGHT;
886                         ent->render.angles[0] = pitch;
887                         ent->render.angles[1] = yaw;
888                         ent->render.angles[2] = rand()%360;
889                         CL_BoundingBoxForEntity(&ent->render);
890                         VectorMA(org, 30, dist, org);
891                         d -= 30;
892                 }
893         }
894 }
895
896 void CL_LerpPlayer(float frac)
897 {
898         int i;
899         float d;
900
901         if (cl.entitydatabase.numframes && cl.viewentity == cl.playerentity)
902         {
903                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
904                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
905                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
906         }
907         else
908                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
909
910         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
911
912         for (i = 0;i < 3;i++)
913                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
914
915         if (cls.demoplayback)
916         {
917                 // interpolate the angles
918                 for (i = 0;i < 3;i++)
919                 {
920                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
921                         if (d > 180)
922                                 d -= 360;
923                         else if (d < -180)
924                                 d += 360;
925                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
926                 }
927         }
928 }
929
930 void CL_RelinkEntities (void)
931 {
932         float frac;
933
934         // fraction from previous network update to current
935         frac = CL_LerpPoint();
936
937         CL_ClearTempEntities();
938         CL_DecayLights();
939         CL_RelinkWorld();
940         CL_RelinkStaticEntities();
941         CL_RelinkNetworkEntities();
942         CL_RelinkEffects();
943         CL_RelinkBeams();
944         CL_MoveParticles();
945
946         CL_LerpPlayer(frac);
947 }
948
949
950 /*
951 ===============
952 CL_ReadFromServer
953
954 Read all incoming data from the server
955 ===============
956 */
957 int CL_ReadFromServer (void)
958 {
959         int ret, netshown;
960
961         cl.oldtime = cl.time;
962         cl.time += cl.frametime;
963
964         netshown = false;
965         do
966         {
967                 ret = CL_GetMessage ();
968                 if (ret == -1)
969                         Host_Error ("CL_ReadFromServer: lost server connection");
970                 if (!ret)
971                         break;
972
973                 cl.last_received_message = realtime;
974
975                 if (cl_shownet.integer)
976                         netshown = true;
977
978                 CL_ParseServerMessage ();
979         }
980         while (ret && cls.state == ca_connected);
981
982         if (netshown)
983                 Con_Printf ("\n");
984
985         r_refdef.numentities = 0;
986         cl_num_entities = 0;
987         cl_num_brushmodel_entities = 0;
988
989         if (cls.state == ca_connected && cls.signon == SIGNONS)
990         {
991                 CL_RelinkEntities ();
992
993                 // run cgame code (which can add more entities)
994                 CL_CGVM_Frame();
995         }
996
997 //
998 // bring the links up to date
999 //
1000         return 0;
1001 }
1002
1003 /*
1004 =================
1005 CL_SendCmd
1006 =================
1007 */
1008 void CL_SendCmd (void)
1009 {
1010         usercmd_t               cmd;
1011
1012         if (cls.state != ca_connected)
1013                 return;
1014
1015         if (cls.signon == SIGNONS)
1016         {
1017         // get basic movement from keyboard
1018                 CL_BaseMove (&cmd);
1019
1020                 IN_PreMove(); // OS independent code
1021
1022         // allow mice or other external controllers to add to the move
1023                 IN_Move (&cmd);
1024
1025                 IN_PostMove(); // OS independent code
1026
1027         // send the unreliable message
1028                 CL_SendMove (&cmd);
1029         }
1030 #ifndef NOROUTINGFIX
1031         else if (cls.signon == 0 && !cls.demoplayback)
1032         {
1033                 // LordHavoc: fix for NAT routing of netquake:
1034                 // bounce back a clc_nop message to the newly allocated server port,
1035                 // to establish a routing connection for incoming frames,
1036                 // the server waits for this before sending anything
1037                 if (realtime > cl.sendnoptime)
1038                 {
1039                         cl.sendnoptime = realtime + 3;
1040                         Con_DPrintf("sending clc_nop to get server's attention\n");
1041                         {
1042                                 sizebuf_t buf;
1043                                 qbyte data[128];
1044                                 buf.maxsize = 128;
1045                                 buf.cursize = 0;
1046                                 buf.data = data;
1047                                 MSG_WriteByte(&buf, clc_nop);
1048                                 if (NET_SendUnreliableMessage (cls.netcon, &buf) == -1)
1049                                 {
1050                                         Con_Printf ("CL_SendCmd: lost server connection\n");
1051                                         CL_Disconnect ();
1052                                 }
1053                         }
1054                 }
1055         }
1056 #endif
1057
1058         if (cls.demoplayback)
1059         {
1060                 SZ_Clear (&cls.message);
1061                 return;
1062         }
1063
1064 // send the reliable message
1065         if (!cls.message.cursize)
1066                 return;         // no message at all
1067
1068         if (!NET_CanSendMessage (cls.netcon))
1069         {
1070                 Con_DPrintf ("CL_WriteToServer: can't send\n");
1071                 if (developer.integer)
1072                         SZ_HexDumpToConsole(&cls.message);
1073                 return;
1074         }
1075
1076         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
1077                 Host_Error ("CL_WriteToServer: lost server connection");
1078
1079         SZ_Clear (&cls.message);
1080 }
1081
1082 // LordHavoc: pausedemo command
1083 static void CL_PauseDemo_f (void)
1084 {
1085         cls.demopaused = !cls.demopaused;
1086         if (cls.demopaused)
1087                 Con_Printf("Demo paused\n");
1088         else
1089                 Con_Printf("Demo unpaused\n");
1090 }
1091
1092 /*
1093 ======================
1094 CL_PModel_f
1095 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
1096 ======================
1097 */
1098 static void CL_PModel_f (void)
1099 {
1100         int i;
1101         eval_t *val;
1102
1103         if (Cmd_Argc () == 1)
1104         {
1105                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
1106                 return;
1107         }
1108         i = atoi(Cmd_Argv(1));
1109
1110         if (cmd_source == src_command)
1111         {
1112                 if (cl_pmodel.integer == i)
1113                         return;
1114                 Cvar_SetValue ("_cl_pmodel", i);
1115                 if (cls.state == ca_connected)
1116                         Cmd_ForwardToServer ();
1117                 return;
1118         }
1119
1120         host_client->pmodel = i;
1121         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
1122                 val->_float = i;
1123 }
1124
1125 /*
1126 ======================
1127 CL_Fog_f
1128 ======================
1129 */
1130 static void CL_Fog_f (void)
1131 {
1132         if (Cmd_Argc () == 1)
1133         {
1134                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
1135                 return;
1136         }
1137         fog_density = atof(Cmd_Argv(1));
1138         fog_red = atof(Cmd_Argv(2));
1139         fog_green = atof(Cmd_Argv(3));
1140         fog_blue = atof(Cmd_Argv(4));
1141 }
1142
1143 /*
1144 =================
1145 CL_Init
1146 =================
1147 */
1148 void CL_Init (void)
1149 {
1150         cl_scores_mempool = Mem_AllocPool("client player info");
1151         cl_entities_mempool = Mem_AllocPool("client entities");
1152         cl_refdef_mempool = Mem_AllocPool("refdef");
1153
1154         memset(&r_refdef, 0, sizeof(r_refdef));
1155         // max entities sent to renderer per frame
1156         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1157         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1158         // 256k drawqueue buffer
1159         r_refdef.maxdrawqueuesize = 256 * 1024;
1160         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1161
1162         SZ_Alloc (&cls.message, 1024, "cls.message");
1163
1164         CL_InitInput ();
1165         CL_InitTEnts ();
1166
1167 //
1168 // register our commands
1169 //
1170         Cvar_RegisterVariable (&cl_name);
1171         Cvar_RegisterVariable (&cl_color);
1172         if (gamemode == GAME_NEHAHRA)
1173                 Cvar_RegisterVariable (&cl_pmodel);
1174         Cvar_RegisterVariable (&cl_upspeed);
1175         Cvar_RegisterVariable (&cl_forwardspeed);
1176         Cvar_RegisterVariable (&cl_backspeed);
1177         Cvar_RegisterVariable (&cl_sidespeed);
1178         Cvar_RegisterVariable (&cl_movespeedkey);
1179         Cvar_RegisterVariable (&cl_yawspeed);
1180         Cvar_RegisterVariable (&cl_pitchspeed);
1181         Cvar_RegisterVariable (&cl_anglespeedkey);
1182         Cvar_RegisterVariable (&cl_shownet);
1183         Cvar_RegisterVariable (&cl_nolerp);
1184         Cvar_RegisterVariable (&lookspring);
1185         Cvar_RegisterVariable (&lookstrafe);
1186         Cvar_RegisterVariable (&sensitivity);
1187         Cvar_RegisterVariable (&freelook);
1188
1189         Cvar_RegisterVariable (&m_pitch);
1190         Cvar_RegisterVariable (&m_yaw);
1191         Cvar_RegisterVariable (&m_forward);
1192         Cvar_RegisterVariable (&m_side);
1193
1194         Cvar_RegisterVariable (&cl_itembobspeed);
1195         Cvar_RegisterVariable (&cl_itembobheight);
1196
1197         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1198         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1199         Cmd_AddCommand ("record", CL_Record_f);
1200         Cmd_AddCommand ("stop", CL_Stop_f);
1201         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1202         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1203
1204         Cmd_AddCommand ("fog", CL_Fog_f);
1205
1206         // LordHavoc: added pausedemo
1207         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1208         if (gamemode == GAME_NEHAHRA)
1209                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1210
1211         Cvar_RegisterVariable(&r_draweffects);
1212         Cvar_RegisterVariable(&cl_explosions);
1213         Cvar_RegisterVariable(&cl_stainmaps);
1214
1215         CL_Parse_Init();
1216         CL_Particles_Init();
1217         CL_Screen_Init();
1218         CL_CGVM_Init();
1219
1220         CL_Video_Init();
1221 }
1222