MSG_Read functions are never used inside if's anymore (this fixes some problems with...
[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
24 // we need to declare some mouse variables here, because the menu system
25 // references them even when on a unix system.
26
27 // these two are not intended to be set directly
28 cvar_t cl_name = {CVAR_SAVE, "_cl_name", "player"};
29 cvar_t cl_color = {CVAR_SAVE, "_cl_color", "0"};
30 cvar_t cl_pmodel = {CVAR_SAVE, "_cl_pmodel", "0"};
31
32 cvar_t cl_shownet = {0, "cl_shownet","0"};
33 cvar_t cl_nolerp = {0, "cl_nolerp", "0"};
34
35 cvar_t cl_itembobheight = {0, "cl_itembobheight", "8"};
36 cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5"};
37
38 cvar_t lookspring = {CVAR_SAVE, "lookspring","0"};
39 cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0"};
40 cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3", 1, 30};
41
42 cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022"};
43 cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022"};
44 cvar_t m_forward = {CVAR_SAVE, "m_forward","1"};
45 cvar_t m_side = {CVAR_SAVE, "m_side","0.8"};
46
47 cvar_t freelook = {CVAR_SAVE, "freelook", "1"};
48
49 cvar_t cl_draweffects = {0, "cl_draweffects", "1"};
50
51 mempool_t *cl_scores_mempool;
52 mempool_t *cl_refdef_mempool;
53
54 client_static_t cls;
55 client_state_t  cl;
56 // FIXME: put these on hunk?
57 entity_t                cl_entities[MAX_EDICTS];
58 entity_t                cl_static_entities[MAX_STATIC_ENTITIES];
59 lightstyle_t    cl_lightstyle[MAX_LIGHTSTYLES];
60
61 typedef struct effect_s
62 {
63         int active;
64         vec3_t origin;
65         float starttime;
66         float framerate;
67         int modelindex;
68         int startframe;
69         int endframe;
70         // these are for interpolation
71         int frame;
72         double frame1time;
73         double frame2time;
74 }
75 cl_effect_t;
76
77 #define MAX_EFFECTS 256
78
79 static cl_effect_t cl_effect[MAX_EFFECTS];
80
81
82 /*
83 =====================
84 CL_ClearState
85
86 =====================
87 */
88 void CL_ClearState (void)
89 {
90         int                     i;
91
92         if (!sv.active)
93                 Host_ClearMemory ();
94
95         Mem_EmptyPool(cl_scores_mempool);
96
97 // wipe the entire cl structure
98         memset (&cl, 0, sizeof(cl));
99
100         SZ_Clear (&cls.message);
101
102 // clear other arrays
103         memset(cl_entities, 0, sizeof(cl_entities));
104         memset(cl_lightstyle, 0, sizeof(cl_lightstyle));
105         memset(cl_temp_entities, 0, sizeof(cl_temp_entities));
106         memset(cl_beams, 0, sizeof(cl_beams));
107         memset(cl_dlights, 0, sizeof(cl_dlights));
108         memset(cl_effect, 0, sizeof(cl_effect));
109         CL_Screen_NewMap();
110         CL_Particles_Clear();
111         // LordHavoc: have to set up the baseline info for alpha and other stuff
112         for (i = 0;i < MAX_EDICTS;i++)
113         {
114                 ClearStateToDefault(&cl_entities[i].state_baseline);
115                 ClearStateToDefault(&cl_entities[i].state_previous);
116                 ClearStateToDefault(&cl_entities[i].state_current);
117         }
118
119         CL_CGVM_Clear();
120 }
121
122 void CL_LerpUpdate(entity_t *e)
123 {
124         entity_persistent_t *p;
125         entity_render_t *r;
126         p = &e->persistent;
127         r = &e->render;
128
129         if (p->modelindex != e->state_current.modelindex)
130         {
131                 // reset all interpolation information
132                 p->modelindex = e->state_current.modelindex;
133                 p->frame1 = p->frame2 = e->state_current.frame;
134                 p->frame1time = p->frame2time = cl.time;
135                 p->framelerp = 1;
136         }
137         else if (p->frame2 != e->state_current.frame)
138         {
139                 // transition to new frame
140                 p->frame1 = p->frame2;
141                 p->frame1time = p->frame2time;
142                 p->frame2 = e->state_current.frame;
143                 p->frame2time = cl.time;
144                 p->framelerp = 0;
145         }
146         else
147         {
148                 // update transition
149                 p->framelerp = (cl.time - p->frame2time) * 10;
150                 p->framelerp = bound(0, p->framelerp, 1);
151         }
152
153         r->model = cl.model_precache[e->state_current.modelindex];
154         Mod_CheckLoaded(r->model);
155         r->frame = e->state_current.frame;
156         r->frame1 = p->frame1;
157         r->frame2 = p->frame2;
158         r->framelerp = p->framelerp;
159         r->frame1time = p->frame1time;
160         r->frame2time = p->frame2time;
161 }
162
163 /*
164 =====================
165 CL_Disconnect
166
167 Sends a disconnect message to the server
168 This is also called on Host_Error, so it shouldn't cause any errors
169 =====================
170 */
171 void CL_Disconnect (void)
172 {
173         if (cls.state == ca_dedicated)
174                 return;
175
176 // stop sounds (especially looping!)
177         S_StopAllSounds (true);
178
179         // clear contents blends
180         cl.cshifts[0].percent = 0;
181         cl.cshifts[1].percent = 0;
182         cl.cshifts[2].percent = 0;
183         cl.cshifts[3].percent = 0;
184
185         cl.worldmodel = NULL;
186
187         if (cls.demoplayback)
188                 CL_StopPlayback ();
189         else if (cls.state == ca_connected)
190         {
191                 if (cls.demorecording)
192                         CL_Stop_f ();
193
194                 Con_DPrintf ("Sending clc_disconnect\n");
195                 SZ_Clear (&cls.message);
196                 MSG_WriteByte (&cls.message, clc_disconnect);
197                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
198                 SZ_Clear (&cls.message);
199                 NET_Close (cls.netcon);
200                 cls.state = ca_disconnected; // prevent this code from executing again during Host_ShutdownServer
201                 // if running a local server, shut it down
202                 if (sv.active)
203                         Host_ShutdownServer(false);
204         }
205         cls.state = ca_disconnected;
206
207         cls.demoplayback = cls.timedemo = false;
208         cls.signon = 0;
209 }
210
211 void CL_Disconnect_f (void)
212 {
213         CL_Disconnect ();
214         if (sv.active)
215                 Host_ShutdownServer (false);
216 }
217
218
219
220
221 /*
222 =====================
223 CL_EstablishConnection
224
225 Host should be either "local" or a net address to be passed on
226 =====================
227 */
228 void CL_EstablishConnection (char *host)
229 {
230         if (cls.state == ca_dedicated)
231                 return;
232
233         if (cls.demoplayback)
234                 return;
235
236         CL_Disconnect ();
237
238         cls.netcon = NET_Connect (host);
239         if (!cls.netcon)
240                 Host_Error ("CL_Connect: connect failed\n");
241         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
242
243         cls.demonum = -1;                       // not in the demo loop now
244         cls.state = ca_connected;
245         cls.signon = 0;                         // need all the signon messages before playing
246
247         CL_ClearState ();
248 }
249
250 /*
251 ==============
252 CL_PrintEntities_f
253 ==============
254 */
255 static void CL_PrintEntities_f (void)
256 {
257         entity_t        *ent;
258         int                     i, j;
259         char            name[32];
260
261         for (i = 0, ent = cl_entities;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
262         {
263                 if (!ent->state_current.active)
264                         continue;
265                 if (!ent->render.model)
266                         continue;
267
268                 Con_Printf ("%3i:", i);
269                 if (!ent->render.model)
270                 {
271                         Con_Printf ("EMPTY\n");
272                         continue;
273                 }
274                 strncpy(name, ent->render.model->name, 25);
275                 name[25] = 0;
276                 for (j = strlen(name);j < 25;j++)
277                         name[j] = ' ';
278                 Con_Printf ("%s:%04i (%5i %5i %5i) [%3i %3i %3i] %4.2f %5.3f\n", 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);
279         }
280 }
281
282
283 /*
284 ===============
285 CL_LerpPoint
286
287 Determines the fraction between the last two messages that the objects
288 should be put at.
289 ===============
290 */
291 static float CL_LerpPoint (void)
292 {
293         float   f;
294
295         // dropped packet, or start of demo
296         if (cl.mtime[1] < cl.mtime[0] - 0.1)
297                 cl.mtime[1] = cl.mtime[0] - 0.1;
298
299         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
300
301         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
302         f = cl.mtime[0] - cl.mtime[1];
303         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
304         {
305                 cl.time = cl.mtime[0];
306                 return 1;
307         }
308
309         f = (cl.time - cl.mtime[1]) / f;
310         return bound(0, f, 1);
311 }
312
313 static void CL_RelinkStaticEntities(void)
314 {
315         int i;
316         for (i = 0;i < cl.num_statics && r_refdef.numentities < MAX_VISEDICTS;i++)
317         {
318                 Mod_CheckLoaded(cl_static_entities[i].render.model);
319                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
320         }
321 }
322
323 /*
324 ===============
325 CL_RelinkEntities
326 ===============
327 */
328 static void CL_RelinkNetworkEntities()
329 {
330         entity_t        *ent;
331         int                     i, glowcolor, effects;
332         float           f, d, bobjrotate, bobjoffset, dlightradius, glowsize, lerp;
333         vec3_t          oldorg, neworg, delta, dlightcolor;
334
335         bobjrotate = ANGLEMOD(100*cl.time);
336         if (cl_itembobheight.value)
337                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
338         else
339                 bobjoffset = 0;
340
341 // start on the entity after the world
342         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS /*cl.num_entities*/;i++, ent++)
343         {
344                 // if the object wasn't included in the latest packet, remove it
345                 if (!ent->state_current.active)
346                         continue;
347
348                 VectorCopy(ent->persistent.trail_origin, oldorg);
349
350                 if (!ent->state_previous.active)
351                 {
352                         // only one state available
353                         lerp = 1;
354                         VectorCopy (ent->state_current.origin, oldorg); // skip trails
355                         VectorCopy (ent->state_current.origin, neworg);
356                         VectorCopy (ent->state_current.angles, ent->render.angles);
357
358                         /*
359                         // monster interpolation
360                         ent->persistent.steplerptime = 0;
361                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
362                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
363                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
364                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
365                         */
366                 }
367                 /*
368                 else if ((ent->state_current.flags & ent->state_previous.flags) & ENTFLAG_STEP)
369                 {
370                         if (ent->state_current.origin[0] != ent->persistent.steporigin[0]
371                          || ent->state_current.origin[1] != ent->persistent.steporigin[1]
372                          || ent->state_current.origin[2] != ent->persistent.steporigin[2]
373                          || ent->state_current.angles[0] != ent->persistent.stepangles[0]
374                          || ent->state_current.angles[1] != ent->persistent.stepangles[1]
375                          || ent->state_current.angles[2] != ent->persistent.stepangles[2])
376                         {
377                                 // update lerp positions
378                                 ent->clientpersistent.steplerptime = sv.time;
379                                 VectorCopy(ent->steporigin, ent->stepoldorigin);
380                                 VectorCopy(ent->stepangles, ent->stepoldangles);
381                                 VectorCopy(ent->v.origin, ent->steporigin);
382                                 VectorCopy(ent->v.angles, ent->stepangles);
383                         }
384                         lerp = (cl.time - ent->persistent.steplerptime) * 10.0;
385                         if (lerp < 1)
386                         {
387                                 // origin
388                                 VectorSubtract(ent->persistent.steporigin, ent->persistent.stepoldorigin, delta);
389                                 VectorMA(ent->persistent.stepoldorigin, lerp, delta, neworg);
390
391                                 // angles
392                                 VectorSubtract(ent->persistent.stepangles, ent->persistent.stepoldangles, delta);
393                                 // choose shortest rotate (to avoid 'spin around' situations)
394                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
395                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
396                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
397                                 VectorMA(ent->stepoldangles, lerp, delta, ent->render.angles);
398                         }
399                         else
400                         {
401                                 VectorCopy(ent->persistent.steporigin, neworg);
402                                 VectorCopy(ent->persistent.stepangles, ent->render.angles);
403                         }
404                 }
405                 */
406                 else
407                 {
408                         /*
409                         // monster interpolation
410                         ent->persistent.steplerptime = 0;
411                         VectorCopy(ent->state_current.origin, ent->persistent.stepoldorigin);
412                         VectorCopy(ent->state_current.angles, ent->persistent.stepoldangles);
413                         VectorCopy(ent->state_current.origin, ent->persistent.steporigin);
414                         VectorCopy(ent->state_current.angles, ent->persistent.stepangles);
415                         */
416
417                         // if the delta is large, assume a teleport and don't lerp
418                         VectorSubtract(ent->state_current.origin, ent->state_previous.origin, delta);
419                         // LordHavoc: increased tolerance from 100 to 200, and now to 1000
420                         if ((sv.active && svs.maxclients == 1 && !(ent->state_current.flags & RENDER_STEP)) || cls.timedemo || DotProduct(delta, delta) > 1000*1000 || cl_nolerp.integer)
421                                 lerp = 1;
422                         else
423                         {
424                                 f = ent->state_current.time - ent->state_previous.time;
425                                 if (f > 0)
426                                         lerp = (cl.time - ent->state_previous.time) / f;
427                                 else
428                                         lerp = 1;
429                         }
430                         if (lerp >= 1)
431                         {
432                                 // no interpolation
433                                 VectorCopy (ent->state_current.origin, neworg);
434                                 VectorCopy (ent->state_current.angles, ent->render.angles);
435                         }
436                         else
437                         {
438                                 // interpolate the origin and angles
439                                 VectorMA(ent->state_previous.origin, lerp, delta, neworg);
440                                 VectorSubtract(ent->state_current.angles, ent->state_previous.angles, delta);
441                                 if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
442                                 if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
443                                 if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
444                                 VectorMA(ent->state_previous.angles, lerp, delta, ent->render.angles);
445                         }
446                 }
447
448                 VectorCopy (neworg, ent->persistent.trail_origin);
449                 // persistent.modelindex will be updated by CL_LerpUpdate
450                 if (ent->state_current.modelindex != ent->persistent.modelindex)
451                         VectorCopy(neworg, oldorg);
452
453                 VectorCopy (neworg, ent->render.origin);
454                 ent->render.flags = ent->state_current.flags;
455                 ent->render.effects = effects = ent->state_current.effects;
456                 if (cl.scores == NULL || !ent->state_current.colormap)
457                         ent->render.colormap = -1; // no special coloring
458                 else
459                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
460                 ent->render.skinnum = ent->state_current.skin;
461                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
462                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
463
464                 // update interpolation info
465                 CL_LerpUpdate(ent);
466
467                 // handle effects now...
468                 dlightradius = 0;
469                 dlightcolor[0] = 0;
470                 dlightcolor[1] = 0;
471                 dlightcolor[2] = 0;
472
473                 // LordHavoc: if the entity has no effects, don't check each
474                 if (effects)
475                 {
476                         if (effects & EF_BRIGHTFIELD)
477                                 CL_EntityParticles (ent);
478                         if (effects & EF_MUZZLEFLASH)
479                         {
480                                 vec3_t v, v2;
481
482                                 AngleVectors (ent->render.angles, v, NULL, NULL);
483
484                                 v2[0] = v[0] * 18 + neworg[0];
485                                 v2[1] = v[1] * 18 + neworg[1];
486                                 v2[2] = v[2] * 18 + neworg[2] + 16;
487                                 TraceLine(neworg, v2, v, NULL, 0, true);
488
489                                 CL_AllocDlight (NULL, v, 100, 1, 1, 1, 0, 0);
490                         }
491                         if (effects & EF_DIMLIGHT)
492                         {
493                                 dlightcolor[0] += 200.0f;
494                                 dlightcolor[1] += 200.0f;
495                                 dlightcolor[2] += 200.0f;
496                         }
497                         if (effects & EF_BRIGHTLIGHT)
498                         {
499                                 dlightcolor[0] += 400.0f;
500                                 dlightcolor[1] += 400.0f;
501                                 dlightcolor[2] += 400.0f;
502                         }
503                         // LordHavoc: added EF_RED and EF_BLUE
504                         if (effects & EF_RED) // red
505                         {
506                                 dlightcolor[0] += 200.0f;
507                                 dlightcolor[1] +=  20.0f;
508                                 dlightcolor[2] +=  20.0f;
509                         }
510                         if (effects & EF_BLUE) // blue
511                         {
512                                 dlightcolor[0] +=  20.0f;
513                                 dlightcolor[1] +=  20.0f;
514                                 dlightcolor[2] += 200.0f;
515                         }
516                         if (effects & EF_FLAME)
517                         {
518                                 if (ent->render.model)
519                                 {
520                                         vec3_t mins, maxs;
521                                         int temp;
522                                         /*
523                                         if (ent->render.angles[0] || ent->render.angles[2])
524                                         {
525                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmins, mins);
526                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmaxs, maxs);
527                                         }
528                                         else if (ent->render.angles[1])
529                                         {
530                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmins, mins);
531                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmaxs, maxs);
532                                         }
533                                         else
534                                         {
535                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmins, mins);
536                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmaxs, maxs);
537                                         }
538                                         */
539                                         mins[0] = neworg[0] - 16.0f;
540                                         mins[1] = neworg[1] - 16.0f;
541                                         mins[2] = neworg[2] - 16.0f;
542                                         maxs[0] = neworg[0] + 16.0f;
543                                         maxs[1] = neworg[1] + 16.0f;
544                                         maxs[2] = neworg[2] + 16.0f;
545                                         // how many flames to make
546                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
547                                         CL_FlameCube(mins, maxs, temp);
548                                 }
549                                 d = lhrandom(200, 250);
550                                 dlightcolor[0] += d * 1.0f;
551                                 dlightcolor[1] += d * 0.7f;
552                                 dlightcolor[2] += d * 0.3f;
553                         }
554                         if (effects & EF_STARDUST)
555                         {
556                                 if (ent->render.model)
557                                 {
558                                         vec3_t mins, maxs;
559                                         int temp;
560                                         /*
561                                         if (ent->render.angles[0] || ent->render.angles[2])
562                                         {
563                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmins, mins);
564                                                 VectorMA(neworg, 0.25f, ent->render.model->rotatedmaxs, maxs);
565                                         }
566                                         else if (ent->render.angles[1])
567                                         {
568                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmins, mins);
569                                                 VectorMA(neworg, 0.25f, ent->render.model->yawmaxs, maxs);
570                                         }
571                                         else
572                                         {
573                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmins, mins);
574                                                 VectorMA(neworg, 0.25f, ent->render.model->normalmaxs, maxs);
575                                         }
576                                         */
577                                         mins[0] = neworg[0] - 16.0f;
578                                         mins[1] = neworg[1] - 16.0f;
579                                         mins[2] = neworg[2] - 16.0f;
580                                         maxs[0] = neworg[0] + 16.0f;
581                                         maxs[1] = neworg[1] + 16.0f;
582                                         maxs[2] = neworg[2] + 16.0f;
583                                         // how many particles to make
584                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
585                                         CL_Stardust(mins, maxs, temp);
586                                 }
587                                 d = 100;
588                                 dlightcolor[0] += d * 1.0f;
589                                 dlightcolor[1] += d * 0.7f;
590                                 dlightcolor[2] += d * 0.3f;
591                         }
592                 }
593
594                 // LordHavoc: if the model has no flags, don't check each
595                 if (ent->render.model && ent->render.model->flags)
596                 {
597                         if (ent->render.model->flags & EF_ROTATE)
598                         {
599                                 ent->render.angles[1] = bobjrotate;
600                                 ent->render.origin[2] += bobjoffset;
601                         }
602                         // only do trails if present in the previous frame as well
603                         if (ent->state_previous.active)
604                         {
605                                 if (ent->render.model->flags & EF_GIB)
606                                         CL_RocketTrail (oldorg, neworg, 2, ent);
607                                 else if (ent->render.model->flags & EF_ZOMGIB)
608                                         CL_RocketTrail (oldorg, neworg, 4, ent);
609                                 else if (ent->render.model->flags & EF_TRACER)
610                                         CL_RocketTrail (oldorg, neworg, 3, ent);
611                                 else if (ent->render.model->flags & EF_TRACER2)
612                                         CL_RocketTrail (oldorg, neworg, 5, ent);
613                                 else if (ent->render.model->flags & EF_ROCKET)
614                                 {
615                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
616                                         dlightcolor[0] += 200.0f;
617                                         dlightcolor[1] += 160.0f;
618                                         dlightcolor[2] +=  80.0f;
619                                 }
620                                 else if (ent->render.model->flags & EF_GRENADE)
621                                 {
622                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility
623                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
624                                         else
625                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
626                                 }
627                                 else if (ent->render.model->flags & EF_TRACER3)
628                                         CL_RocketTrail (oldorg, neworg, 6, ent);
629                         }
630                 }
631                 // LordHavoc: customizable glow
632                 glowsize = ent->state_current.glowsize; // FIXME: interpolate?
633                 glowcolor = ent->state_current.glowcolor;
634                 if (glowsize)
635                 {
636                         qbyte *tempcolor = (qbyte *)&d_8to24table[glowcolor];
637                         // * 4 for the expansion from 0-255 to 0-1023 range,
638                         // / 255 to scale down byte colors
639                         glowsize *= (4.0f / 255.0f);
640                         VectorMA(dlightcolor, glowsize, tempcolor, dlightcolor);
641                 }
642                 // LordHavoc: customizable trail
643                 if (ent->render.flags & RENDER_GLOWTRAIL)
644                         CL_RocketTrail2 (oldorg, neworg, glowcolor, ent);
645
646                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
647                 {
648                         vec3_t vec;
649                         VectorCopy(neworg, vec);
650                         // hack to make glowing player light shine on their gun
651                         if (i == cl.viewentity && !chase_active.integer)
652                                 vec[2] += 30;
653                         CL_AllocDlight (/*&ent->render*/ NULL, vec, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
654                 }
655
656                 if (chase_active.integer)
657                 {
658                         if (ent->render.flags & RENDER_VIEWMODEL)
659                                 continue;
660                 }
661                 else
662                 {
663                         if (i == cl.viewentity || (ent->render.flags & RENDER_EXTERIORMODEL))
664                                 continue;
665                 }
666
667                 if (ent->render.model == NULL)
668                         continue;
669                 if (effects & EF_NODRAW)
670                         continue;
671                 if (r_refdef.numentities < MAX_VISEDICTS)
672                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
673         }
674 }
675
676 void CL_LerpPlayer(float frac)
677 {
678         int i;
679         float d;
680
681         if (cl.entitydatabase.numframes)
682         {
683                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
684                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
685                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
686         }
687         else
688                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
689
690         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
691
692         for (i = 0;i < 3;i++)
693                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
694
695         if (cls.demoplayback)
696         {
697                 // interpolate the angles
698                 for (i = 0;i < 3;i++)
699                 {
700                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
701                         if (d > 180)
702                                 d -= 360;
703                         else if (d < -180)
704                                 d += 360;
705                         cl.viewangles[i] = cl.mviewangles[1][i] + frac*d;
706                 }
707         }
708 }
709
710 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
711 {
712         int i;
713         cl_effect_t *e;
714         if (!modelindex) // sanity check
715                 return;
716         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
717         {
718                 if (e->active)
719                         continue;
720                 e->active = true;
721                 VectorCopy(org, e->origin);
722                 e->modelindex = modelindex;
723                 e->starttime = cl.time;
724                 e->startframe = startframe;
725                 e->endframe = startframe + framecount;
726                 e->framerate = framerate;
727
728                 e->frame = 0;
729                 e->frame1time = cl.time;
730                 e->frame2time = cl.time;
731                 break;
732         }
733 }
734
735 static void CL_RelinkEffects()
736 {
737         int i, intframe;
738         cl_effect_t *e;
739         entity_t *vis;
740         float frame;
741
742         for (i = 0, e = cl_effect;i < MAX_EFFECTS;i++, e++)
743         {
744                 if (e->active)
745                 {
746                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
747                         intframe = frame;
748                         if (intframe < 0 || intframe >= e->endframe)
749                         {
750                                 e->active = false;
751                                 memset(e, 0, sizeof(*e));
752                                 continue;
753                         }
754
755                         if (intframe != e->frame)
756                         {
757                                 e->frame = intframe;
758                                 e->frame1time = e->frame2time;
759                                 e->frame2time = cl.time;
760                         }
761
762                         if ((vis = CL_NewTempEntity()))
763                         {
764                                 // interpolation stuff
765                                 vis->render.frame1 = intframe;
766                                 vis->render.frame2 = intframe + 1;
767                                 if (vis->render.frame2 >= e->endframe)
768                                         vis->render.frame2 = -1; // disappear
769                                 vis->render.framelerp = frame - intframe;
770                                 vis->render.frame1time = e->frame1time;
771                                 vis->render.frame2time = e->frame2time;
772
773                                 // normal stuff
774                                 VectorCopy(e->origin, vis->render.origin);
775                                 vis->render.model = cl.model_precache[e->modelindex];
776                                 vis->render.frame = vis->render.frame2;
777                                 vis->render.colormap = -1; // no special coloring
778                                 vis->render.scale = 1;
779                                 vis->render.alpha = 1;
780                         }
781                 }
782         }
783 }
784
785 void CL_RelinkEntities (void)
786 {
787         float frac;
788
789         // fraction from previous network update to current
790         frac = CL_LerpPoint ();
791
792         CL_DecayLights ();
793         CL_RelinkStaticEntities();
794         CL_RelinkNetworkEntities();
795         TraceLine_ScanForBModels();
796         CL_RelinkEffects();
797         CL_MoveParticles();
798         CL_UpdateTEnts();
799
800         CL_LerpPlayer(frac);
801 }
802
803
804 /*
805 ===============
806 CL_ReadFromServer
807
808 Read all incoming data from the server
809 ===============
810 */
811 int CL_ReadFromServer (void)
812 {
813         int ret, netshown;
814
815         cl.oldtime = cl.time;
816         cl.time += cl.frametime;
817
818         netshown = false;
819         do
820         {
821                 ret = CL_GetMessage ();
822                 if (ret == -1)
823                         Host_Error ("CL_ReadFromServer: lost server connection");
824                 if (!ret)
825                         break;
826
827                 cl.last_received_message = realtime;
828
829                 if (cl_shownet.integer)
830                         netshown = true;
831
832                 CL_ParseServerMessage ();
833         }
834         while (ret && cls.state == ca_connected);
835
836         if (netshown)
837                 Con_Printf ("\n");
838
839         r_refdef.numentities = 0;
840         if (cls.state == ca_connected && cl.worldmodel)
841         {
842                 CL_RelinkEntities ();
843
844                 // run cgame code (which can add more entities)
845                 CL_CGVM_Frame();
846         }
847
848 //
849 // bring the links up to date
850 //
851         return 0;
852 }
853
854 /*
855 =================
856 CL_SendCmd
857 =================
858 */
859 void CL_SendCmd (void)
860 {
861         usercmd_t               cmd;
862
863         if (cls.state != ca_connected)
864                 return;
865
866         if (cls.signon == SIGNONS)
867         {
868         // get basic movement from keyboard
869                 CL_BaseMove (&cmd);
870
871                 IN_PreMove(); // OS independent code
872
873         // allow mice or other external controllers to add to the move
874                 IN_Move (&cmd);
875
876                 IN_PostMove(); // OS independent code
877
878         // send the unreliable message
879                 CL_SendMove (&cmd);
880         }
881
882         if (cls.demoplayback)
883         {
884                 SZ_Clear (&cls.message);
885                 return;
886         }
887
888 // send the reliable message
889         if (!cls.message.cursize)
890                 return;         // no message at all
891
892         if (!NET_CanSendMessage (cls.netcon))
893         {
894                 Con_DPrintf ("CL_WriteToServer: can't send\n");
895                 return;
896         }
897
898         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
899                 Host_Error ("CL_WriteToServer: lost server connection");
900
901         SZ_Clear (&cls.message);
902 }
903
904 // LordHavoc: pausedemo command
905 static void CL_PauseDemo_f (void)
906 {
907         cls.demopaused = !cls.demopaused;
908         if (cls.demopaused)
909                 Con_Printf("Demo paused\n");
910         else
911                 Con_Printf("Demo unpaused\n");
912 }
913
914 /*
915 ======================
916 CL_PModel_f
917 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
918 ======================
919 */
920 static void CL_PModel_f (void)
921 {
922         int i;
923         eval_t *val;
924
925         if (Cmd_Argc () == 1)
926         {
927                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
928                 return;
929         }
930         i = atoi(Cmd_Argv(1));
931
932         if (cmd_source == src_command)
933         {
934                 if (cl_pmodel.integer == i)
935                         return;
936                 Cvar_SetValue ("_cl_pmodel", i);
937                 if (cls.state == ca_connected)
938                         Cmd_ForwardToServer ();
939                 return;
940         }
941
942         host_client->pmodel = i;
943         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
944                 val->_float = i;
945 }
946
947 /*
948 ======================
949 CL_Fog_f
950 ======================
951 */
952 static void CL_Fog_f (void)
953 {
954         if (Cmd_Argc () == 1)
955         {
956                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
957                 return;
958         }
959         fog_density = atof(Cmd_Argv(1));
960         fog_red = atof(Cmd_Argv(2));
961         fog_green = atof(Cmd_Argv(3));
962         fog_blue = atof(Cmd_Argv(4));
963 }
964
965 /*
966 =================
967 CL_Init
968 =================
969 */
970 void CL_Init (void)
971 {
972         cl_scores_mempool = Mem_AllocPool("client player info");
973
974         cl_refdef_mempool = Mem_AllocPool("refdef");
975         memset(&r_refdef, 0, sizeof(r_refdef));
976         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * MAX_VISEDICTS);
977
978         SZ_Alloc (&cls.message, 1024, "cls.message");
979
980         CL_InitInput ();
981         CL_InitTEnts ();
982
983 //
984 // register our commands
985 //
986         Cvar_RegisterVariable (&cl_name);
987         Cvar_RegisterVariable (&cl_color);
988         if (gamemode == GAME_NEHAHRA)
989                 Cvar_RegisterVariable (&cl_pmodel);
990         Cvar_RegisterVariable (&cl_upspeed);
991         Cvar_RegisterVariable (&cl_forwardspeed);
992         Cvar_RegisterVariable (&cl_backspeed);
993         Cvar_RegisterVariable (&cl_sidespeed);
994         Cvar_RegisterVariable (&cl_movespeedkey);
995         Cvar_RegisterVariable (&cl_yawspeed);
996         Cvar_RegisterVariable (&cl_pitchspeed);
997         Cvar_RegisterVariable (&cl_anglespeedkey);
998         Cvar_RegisterVariable (&cl_shownet);
999         Cvar_RegisterVariable (&cl_nolerp);
1000         Cvar_RegisterVariable (&lookspring);
1001         Cvar_RegisterVariable (&lookstrafe);
1002         Cvar_RegisterVariable (&sensitivity);
1003         Cvar_RegisterVariable (&freelook);
1004
1005         Cvar_RegisterVariable (&m_pitch);
1006         Cvar_RegisterVariable (&m_yaw);
1007         Cvar_RegisterVariable (&m_forward);
1008         Cvar_RegisterVariable (&m_side);
1009
1010         Cvar_RegisterVariable (&cl_itembobspeed);
1011         Cvar_RegisterVariable (&cl_itembobheight);
1012
1013         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1014         Cmd_AddCommand ("bitprofile", CL_BitProfile_f);
1015         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1016         Cmd_AddCommand ("record", CL_Record_f);
1017         Cmd_AddCommand ("stop", CL_Stop_f);
1018         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1019         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1020
1021         Cmd_AddCommand ("fog", CL_Fog_f);
1022
1023         // LordHavoc: added pausedemo
1024         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1025         if (gamemode == GAME_NEHAHRA)
1026                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1027
1028         Cvar_RegisterVariable(&cl_draweffects);
1029
1030         CL_Parse_Init();
1031         CL_Particles_Init();
1032         CL_Screen_Init();
1033         CL_CGVM_Init();
1034 }