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 cvar_t cl_beams_polygons = {CVAR_SAVE, "cl_beams_polygons", "1"};
  57 cvar_t cl_beams_relative = {CVAR_SAVE, "cl_beams_relative", "1"};
  58
  59 cvar_t cl_noplayershadow = {CVAR_SAVE, "cl_noplayershadow", "0"};
  60
  61 mempool_t *cl_scores_mempool;
  62 mempool_t *cl_refdef_mempool;
  63 mempool_t *cl_entities_mempool;
  64
  65 client_static_t cls;
  66 client_state_t  cl;
  67
  68 int cl_max_entities;
  69 int cl_max_static_entities;
  70 int cl_max_temp_entities;
  71 int cl_max_effects;
  72 int cl_max_beams;
  73 int cl_max_dlights;
  74 int cl_max_lightstyle;
  75 int cl_max_brushmodel_entities;
  76
  77 entity_t *cl_entities;
  78 qbyte *cl_entities_active;
  79 entity_t *cl_static_entities;
  80 entity_t *cl_temp_entities;
  81 cl_effect_t *cl_effects;
  82 beam_t *cl_beams;
  83 dlight_t *cl_dlights;
  84 lightstyle_t *cl_lightstyle;
  85 entity_render_t **cl_brushmodel_entities;
  86
  87 int cl_num_entities;
  88 int cl_num_static_entities;
  89 int cl_num_temp_entities;
  90 int cl_num_brushmodel_entities;
  91
  92 /*
  93 =====================
  94 CL_ClearState
  95
  96 =====================
  97 */
  98 void CL_ClearState (void)
  99 {
 100         int i;
 101
 102         if (!sv.active)
 103                 Host_ClearMemory ();
 104
 105         Mem_EmptyPool(cl_scores_mempool);
 106         Mem_EmptyPool(cl_entities_mempool);
 107
 108 // wipe the entire cl structure
 109         memset (&cl, 0, sizeof(cl));
 110
 111         SZ_Clear (&cls.message);
 112
 113         cl_num_entities = 0;
 114         cl_num_static_entities = 0;
 115         cl_num_temp_entities = 0;
 116         cl_num_brushmodel_entities = 0;
 117
 118         // tweak these if the game runs out
 119         cl_max_entities = MAX_EDICTS;
 120         cl_max_static_entities = 256;
 121         cl_max_temp_entities = 512;
 122         cl_max_effects = 256;
 123         cl_max_beams = 24;
 124         cl_max_dlights = MAX_DLIGHTS;
 125         cl_max_lightstyle = MAX_LIGHTSTYLES;
 126         cl_max_brushmodel_entities = MAX_EDICTS;
 127
 128         cl_entities = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(entity_t));
 129         cl_entities_active = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(qbyte));
 130         cl_static_entities = Mem_Alloc(cl_entities_mempool, cl_max_static_entities * sizeof(entity_t));
 131         cl_temp_entities = Mem_Alloc(cl_entities_mempool, cl_max_temp_entities * sizeof(entity_t));
 132         cl_effects = Mem_Alloc(cl_entities_mempool, cl_max_effects * sizeof(cl_effect_t));
 133         cl_beams = Mem_Alloc(cl_entities_mempool, cl_max_beams * sizeof(beam_t));
 134         cl_dlights = Mem_Alloc(cl_entities_mempool, cl_max_dlights * sizeof(dlight_t));
 135         cl_lightstyle = Mem_Alloc(cl_entities_mempool, cl_max_lightstyle * sizeof(lightstyle_t));
 136         cl_brushmodel_entities = Mem_Alloc(cl_entities_mempool, cl_max_brushmodel_entities * sizeof(entity_render_t *));
 137
 138         CL_Screen_NewMap();
 139
 140         CL_Particles_Clear();
 141
 142         // LordHavoc: have to set up the baseline info for alpha and other stuff
 143         for (i = 0;i < cl_max_entities;i++)
 144         {
 145                 ClearStateToDefault(&cl_entities[i].state_baseline);
 146                 ClearStateToDefault(&cl_entities[i].state_previous);
 147                 ClearStateToDefault(&cl_entities[i].state_current);
 148         }
 149
 150         CL_CGVM_Clear();
 151 }
 152
 153 /*
 154 =====================
 155 CL_Disconnect
 156
 157 Sends a disconnect message to the server
 158 This is also called on Host_Error, so it shouldn't cause any errors
 159 =====================
 160 */
 161 void CL_Disconnect (void)
 162 {
 163         if (cls.state == ca_dedicated)
 164                 return;
 165
 166 // stop sounds (especially looping!)
 167         S_StopAllSounds (true);
 168
 169         // clear contents blends
 170         cl.cshifts[0].percent = 0;
 171         cl.cshifts[1].percent = 0;
 172         cl.cshifts[2].percent = 0;
 173         cl.cshifts[3].percent = 0;
 174
 175         cl.worldmodel = NULL;
 176
 177         if (cls.demoplayback)
 178                 CL_StopPlayback ();
 179         else if (cls.state == ca_connected)
 180         {
 181                 if (cls.demorecording)
 182                         CL_Stop_f ();
 183
 184                 Con_DPrintf ("Sending clc_disconnect\n");
 185                 SZ_Clear (&cls.message);
 186                 MSG_WriteByte (&cls.message, clc_disconnect);
 187                 NET_SendUnreliableMessage (cls.netcon, &cls.message);
 188                 SZ_Clear (&cls.message);
 189                 NET_Close (cls.netcon);
 190                 cls.state = ca_disconnected; // prevent this code from executing again during Host_ShutdownServer
 191                 // if running a local server, shut it down
 192                 if (sv.active)
 193                         Host_ShutdownServer(false);
 194         }
 195         cls.state = ca_disconnected;
 196
 197         cls.demoplayback = cls.timedemo = false;
 198         cls.signon = 0;
 199 }
 200
 201 void CL_Disconnect_f (void)
 202 {
 203         CL_Disconnect ();
 204         if (sv.active)
 205                 Host_ShutdownServer (false);
 206 }
 207
 208
 209
 210
 211 /*
 212 =====================
 213 CL_EstablishConnection
 214
 215 Host should be either "local" or a net address to be passed on
 216 =====================
 217 */
 218 void CL_EstablishConnection (char *host)
 219 {
 220         if (cls.state == ca_dedicated)
 221                 return;
 222
 223         if (cls.demoplayback)
 224                 return;
 225
 226         CL_Disconnect ();
 227
 228         cls.netcon = NET_Connect (host);
 229         if (!cls.netcon)
 230                 Host_Error ("CL_Connect: connect failed\n");
 231         Con_DPrintf ("CL_EstablishConnection: connected to %s\n", host);
 232
 233         cls.demonum = -1;                       // not in the demo loop now
 234         cls.state = ca_connected;
 235         cls.signon = 0;                         // need all the signon messages before playing
 236
 237         CL_ClearState ();
 238 }
 239
 240 /*
 241 ==============
 242 CL_PrintEntities_f
 243 ==============
 244 */
 245 static void CL_PrintEntities_f (void)
 246 {
 247         entity_t *ent;
 248         int i, j;
 249         char name[32];
 250
 251         for (i = 0, ent = cl_entities;i < cl_num_entities;i++, ent++)
 252         {
 253                 if (!ent->state_current.active)
 254                         continue;
 255
 256                 if (ent->render.model)
 257                         strncpy(name, ent->render.model->name, 25);
 258                 else
 259                         strcpy(name, "--no model--");
 260                 name[25] = 0;
 261                 for (j = strlen(name);j < 25;j++)
 262                         name[j] = ' ';
 263                 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);
 264         }
 265 }
 266
 267 //static const vec3_t nomodelmins = {-16, -16, -16};
 268 //static const vec3_t nomodelmaxs = {16, 16, 16};
 269 void CL_BoundingBoxForEntity(entity_render_t *ent)
 270 {
 271         if (ent->model)
 272         {
 273                 //if (ent->angles[0] || ent->angles[2])
 274                 if (ent->matrix.m[2][0] != 0 || ent->matrix.m[2][1] != 0)
 275                 {
 276                         // pitch or roll
 277                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->rotatedmins[0];
 278                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->rotatedmins[1];
 279                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->rotatedmins[2];
 280                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->rotatedmaxs[0];
 281                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->rotatedmaxs[1];
 282                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->rotatedmaxs[2];
 283                         //VectorAdd(ent->origin, ent->model->rotatedmins, ent->mins);
 284                         //VectorAdd(ent->origin, ent->model->rotatedmaxs, ent->maxs);
 285                 }
 286                 //else if (ent->angles[1])
 287                 else if (ent->matrix.m[0][1] != 0 || ent->matrix.m[1][0] != 0)
 288                 {
 289                         // yaw
 290                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->yawmins[0];
 291                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->yawmins[1];
 292                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->yawmins[2];
 293                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->yawmaxs[0];
 294                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->yawmaxs[1];
 295                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->yawmaxs[2];
 296                         //VectorAdd(ent->origin, ent->model->yawmins, ent->mins);
 297                         //VectorAdd(ent->origin, ent->model->yawmaxs, ent->maxs);
 298                 }
 299                 else
 300                 {
 301                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->normalmins[0];
 302                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->normalmins[1];
 303                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->normalmins[2];
 304                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->normalmaxs[0];
 305                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->normalmaxs[1];
 306                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->normalmaxs[2];
 307                         //VectorAdd(ent->origin, ent->model->normalmins, ent->mins);
 308                         //VectorAdd(ent->origin, ent->model->normalmaxs, ent->maxs);
 309                 }
 310         }
 311         else
 312         {
 313                 ent->mins[0] = ent->matrix.m[0][3] - 16;
 314                 ent->mins[1] = ent->matrix.m[1][3] - 16;
 315                 ent->mins[2] = ent->matrix.m[2][3] - 16;
 316                 ent->maxs[0] = ent->matrix.m[0][3] + 16;
 317                 ent->maxs[1] = ent->matrix.m[1][3] + 16;
 318                 ent->maxs[2] = ent->matrix.m[2][3] + 16;
 319                 //VectorAdd(ent->origin, nomodelmins, ent->mins);
 320                 //VectorAdd(ent->origin, nomodelmaxs, ent->maxs);
 321         }
 322 }
 323
 324 void CL_LerpUpdate(entity_t *e)
 325 {
 326         entity_persistent_t *p;
 327         entity_render_t *r;
 328         p = &e->persistent;
 329         r = &e->render;
 330
 331         if (p->modelindex != e->state_current.modelindex)
 332         {
 333                 // reset all interpolation information
 334                 p->modelindex = e->state_current.modelindex;
 335                 p->frame1 = p->frame2 = e->state_current.frame;
 336                 p->frame1time = p->frame2time = cl.time;
 337                 p->framelerp = 1;
 338         }
 339         else if (p->frame2 != e->state_current.frame)
 340         {
 341                 // transition to new frame
 342                 p->frame1 = p->frame2;
 343                 p->frame1time = p->frame2time;
 344                 p->frame2 = e->state_current.frame;
 345                 p->frame2time = cl.time;
 346                 p->framelerp = 0;
 347         }
 348         else
 349         {
 350                 // update transition
 351                 p->framelerp = (cl.time - p->frame2time) * 10;
 352                 p->framelerp = bound(0, p->framelerp, 1);
 353         }
 354
 355         r->model = cl.model_precache[e->state_current.modelindex];
 356         Mod_CheckLoaded(r->model);
 357         r->frame = e->state_current.frame;
 358         r->frame1 = p->frame1;
 359         r->frame2 = p->frame2;
 360         r->framelerp = p->framelerp;
 361         r->frame1time = p->frame1time;
 362         r->frame2time = p->frame2time;
 363 }
 364
 365 /*
 366 ===============
 367 CL_LerpPoint
 368
 369 Determines the fraction between the last two messages that the objects
 370 should be put at.
 371 ===============
 372 */
 373 static float CL_LerpPoint (void)
 374 {
 375         float f;
 376
 377         // dropped packet, or start of demo
 378         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 379                 cl.mtime[1] = cl.mtime[0] - 0.1;
 380
 381         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 382
 383         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 384         f = cl.mtime[0] - cl.mtime[1];
 385         if (!f || cl_nolerp.integer || cls.timedemo || (sv.active && svs.maxclients == 1))
 386         {
 387                 cl.time = cl.mtime[0];
 388                 return 1;
 389         }
 390
 391         f = (cl.time - cl.mtime[1]) / f;
 392         return bound(0, f, 1);
 393 }
 394
 395 void CL_ClearTempEntities (void)
 396 {
 397         cl_num_temp_entities = 0;
 398 }
 399
 400 entity_t *CL_NewTempEntity (void)
 401 {
 402         entity_t *ent;
 403
 404         if (r_refdef.numentities >= r_refdef.maxentities)
 405                 return NULL;
 406         if (cl_num_temp_entities >= cl_max_temp_entities)
 407                 return NULL;
 408         ent = &cl_temp_entities[cl_num_temp_entities++];
 409         memset (ent, 0, sizeof(*ent));
 410         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 411
 412         ent->render.colormap = -1; // no special coloring
 413         ent->render.scale = 1;
 414         ent->render.alpha = 1;
 415         return ent;
 416 }
 417
 418 void CL_AllocDlight (entity_render_t *ent, vec3_t org, float radius, float red, float green, float blue, float decay, float lifetime)
 419 {
 420         int i;
 421         dlight_t *dl;
 422
 423         /*
 424 // first look for an exact key match
 425         if (ent)
 426         {
 427                 dl = cl_dlights;
 428                 for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 429                         if (dl->ent == ent)
 430                                 goto dlightsetup;
 431         }
 432         */
 433
 434 // then look for anything else
 435         dl = cl_dlights;
 436         for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 437                 if (!dl->radius)
 438                         goto dlightsetup;
 439
 440         // unable to find one
 441         return;
 442
 443 dlightsetup:
 444         //Con_Printf("dlight %i : %f %f %f : %f %f %f\n", i, org[0], org[1], org[2], red * radius, green * radius, blue * radius);
 445         memset (dl, 0, sizeof(*dl));
 446         dl->ent = ent;
 447         VectorCopy(org, dl->origin);
 448         dl->radius = radius;
 449         dl->color[0] = red;
 450         dl->color[1] = green;
 451         dl->color[2] = blue;
 452         dl->decay = decay;
 453         if (lifetime)
 454                 dl->die = cl.time + lifetime;
 455         else
 456                 dl->die = 0;
 457 }
 458
 459 void CL_DecayLights (void)
 460 {
 461         int i;
 462         dlight_t *dl;
 463         float time;
 464
 465         time = cl.time - cl.oldtime;
 466
 467         dl = cl_dlights;
 468         for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
 469         {
 470                 if (!dl->radius)
 471                         continue;
 472                 if (dl->die < cl.time)
 473                 {
 474                         dl->radius = 0;
 475                         continue;
 476                 }
 477
 478                 dl->radius -= time*dl->decay;
 479                 if (dl->radius < 0)
 480                         dl->radius = 0;
 481         }
 482 }
 483
 484 void CL_RelinkWorld (void)
 485 {
 486         entity_t *ent = &cl_entities[0];
 487         if (cl_num_entities < 1)
 488                 cl_num_entities = 1;
 489         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 490         Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, ent->render.origin[0], ent->render.origin[1], ent->render.origin[2], ent->render.angles[0], ent->render.angles[1], ent->render.angles[2], ent->render.scale);
 491         Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
 492         CL_BoundingBoxForEntity(&ent->render);
 493 }
 494
 495 static void CL_RelinkStaticEntities(void)
 496 {
 497         int i;
 498         for (i = 0;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++)
 499         {
 500                 Mod_CheckLoaded(cl_static_entities[i].render.model);
 501                 r_refdef.entities[r_refdef.numentities++] = &cl_static_entities[i].render;
 502         }
 503 }
 504
 505 /*
 506 ===============
 507 CL_RelinkEntities
 508 ===============
 509 */
 510 extern qboolean Nehahrademcompatibility;
 511 #define MAXVIEWMODELS 32
 512 entity_t *viewmodels[MAXVIEWMODELS];
 513 int numviewmodels;
 514 static void CL_RelinkNetworkEntities(void)
 515 {
 516         entity_t *ent;
 517         int i, effects, temp;
 518         float d, bobjrotate, bobjoffset, lerp;
 519         vec3_t oldorg, neworg, delta, dlightcolor, v, v2, mins, maxs;
 520
 521         numviewmodels = 0;
 522
 523         bobjrotate = ANGLEMOD(100*cl.time);
 524         if (cl_itembobheight.value)
 525                 bobjoffset = (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 526         else
 527                 bobjoffset = 0;
 528
 529         // start on the entity after the world
 530         for (i = 1, ent = cl_entities + 1;i < MAX_EDICTS;i++, ent++)
 531         {
 532                 // if the object isn't active in the current network frame, skip it
 533                 if (!cl_entities_active[i])
 534                         continue;
 535                 if (!ent->state_current.active)
 536                 {
 537                         cl_entities_active[i] = false;
 538                         continue;
 539                 }
 540
 541                 VectorCopy(ent->persistent.trail_origin, oldorg);
 542
 543                 if (!ent->state_previous.active)
 544                 {
 545                         // only one state available
 546                         VectorCopy (ent->persistent.neworigin, neworg);
 547                         VectorCopy (ent->persistent.newangles, ent->render.angles);
 548                         VectorCopy (neworg, oldorg);
 549                 }
 550                 else
 551                 {
 552                         // if the delta is large, assume a teleport and don't lerp
 553                         VectorSubtract(ent->persistent.neworigin, ent->persistent.oldorigin, delta);
 554                         if (ent->persistent.lerpdeltatime > 0)
 555                         {
 556                                 lerp = (cl.time - ent->persistent.lerpstarttime) / ent->persistent.lerpdeltatime;
 557                                 if (lerp < 1)
 558                                 {
 559                                         // interpolate the origin and angles
 560                                         VectorMA(ent->persistent.oldorigin, lerp, delta, neworg);
 561                                         VectorSubtract(ent->persistent.newangles, ent->persistent.oldangles, delta);
 562                                         if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 563                                         if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 564                                         if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 565                                         VectorMA(ent->persistent.oldangles, lerp, delta, ent->render.angles);
 566                                 }
 567                                 else
 568                                 {
 569                                         // no interpolation
 570                                         VectorCopy (ent->persistent.neworigin, neworg);
 571                                         VectorCopy (ent->persistent.newangles, ent->render.angles);
 572                                 }
 573                         }
 574                         else
 575                         {
 576                                 // no interpolation
 577                                 VectorCopy (ent->persistent.neworigin, neworg);
 578                                 VectorCopy (ent->persistent.newangles, ent->render.angles);
 579                         }
 580                 }
 581
 582                 if (!ent->render.model || ent->render.model->type != mod_brush)
 583                         ent->render.angles[0] = -ent->render.angles[0];
 584
 585                 VectorCopy (neworg, ent->persistent.trail_origin);
 586                 // persistent.modelindex will be updated by CL_LerpUpdate
 587                 if (ent->state_current.modelindex != ent->persistent.modelindex || !ent->state_previous.active)
 588                         VectorCopy(neworg, oldorg);
 589
 590                 VectorCopy (neworg, ent->render.origin);
 591                 ent->render.flags = ent->state_current.flags;
 592                 if (i == cl.viewentity)
 593                         ent->render.flags |= RENDER_EXTERIORMODEL;
 594                 ent->render.effects = effects = ent->state_current.effects;
 595                 if (ent->state_current.flags & RENDER_COLORMAPPED)
 596                         ent->render.colormap = ent->state_current.colormap;
 597                 else if (cl.scores == NULL || !ent->state_current.colormap)
 598                         ent->render.colormap = -1; // no special coloring
 599                 else
 600                         ent->render.colormap = cl.scores[ent->state_current.colormap - 1].colors; // color it
 601                 ent->render.skinnum = ent->state_current.skin;
 602                 ent->render.alpha = ent->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 603                 ent->render.scale = ent->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 604
 605                 if (ent->render.model && ent->render.model->flags & EF_ROTATE)
 606                 {
 607                         ent->render.angles[1] = bobjrotate;
 608                         ent->render.origin[2] += bobjoffset;
 609                 }
 610
 611                 Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, ent->render.origin[0], ent->render.origin[1], ent->render.origin[2], ent->render.angles[0], ent->render.angles[1], ent->render.angles[2], ent->render.scale);
 612
 613                 // update interpolation info
 614                 CL_LerpUpdate(ent);
 615
 616                 // handle effects now...
 617                 dlightcolor[0] = 0;
 618                 dlightcolor[1] = 0;
 619                 dlightcolor[2] = 0;
 620
 621                 // LordHavoc: if the entity has no effects, don't check each
 622                 if (effects)
 623                 {
 624                         if (effects & EF_BRIGHTFIELD)
 625                         {
 626                                 if (gamemode == GAME_NEXIUZ)
 627                                 {
 628                                         dlightcolor[0] += 100.0f;
 629                                         dlightcolor[1] += 200.0f;
 630                                         dlightcolor[2] += 400.0f;
 631                                         // don't do trail if we have no previous location
 632                                         if (ent->state_previous.active)
 633                                                 CL_RocketTrail (oldorg, neworg, 8, ent);
 634                                 }
 635                                 else
 636                                         CL_EntityParticles (ent);
 637                         }
 638                         if (effects & EF_MUZZLEFLASH)
 639                                 ent->persistent.muzzleflash = 100.0f;
 640                         if (effects & EF_DIMLIGHT)
 641                         {
 642                                 dlightcolor[0] += 200.0f;
 643                                 dlightcolor[1] += 200.0f;
 644                                 dlightcolor[2] += 200.0f;
 645                         }
 646                         if (effects & EF_BRIGHTLIGHT)
 647                         {
 648                                 dlightcolor[0] += 400.0f;
 649                                 dlightcolor[1] += 400.0f;
 650                                 dlightcolor[2] += 400.0f;
 651                         }
 652                         // LordHavoc: added EF_RED and EF_BLUE
 653                         if (effects & EF_RED) // red
 654                         {
 655                                 dlightcolor[0] += 200.0f;
 656                                 dlightcolor[1] +=  20.0f;
 657                                 dlightcolor[2] +=  20.0f;
 658                         }
 659                         if (effects & EF_BLUE) // blue
 660                         {
 661                                 dlightcolor[0] +=  20.0f;
 662                                 dlightcolor[1] +=  20.0f;
 663                                 dlightcolor[2] += 200.0f;
 664                         }
 665                         if (effects & EF_FLAME)
 666                         {
 667                                 if (ent->render.model)
 668                                 {
 669                                         mins[0] = neworg[0] - 16.0f;
 670                                         mins[1] = neworg[1] - 16.0f;
 671                                         mins[2] = neworg[2] - 16.0f;
 672                                         maxs[0] = neworg[0] + 16.0f;
 673                                         maxs[1] = neworg[1] + 16.0f;
 674                                         maxs[2] = neworg[2] + 16.0f;
 675                                         // how many flames to make
 676                                         temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 677                                         CL_FlameCube(mins, maxs, temp);
 678                                 }
 679                                 d = lhrandom(200, 250);
 680                                 dlightcolor[0] += d * 1.0f;
 681                                 dlightcolor[1] += d * 0.7f;
 682                                 dlightcolor[2] += d * 0.3f;
 683                         }
 684                         if (effects & EF_STARDUST)
 685                         {
 686                                 if (ent->render.model)
 687                                 {
 688                                         mins[0] = neworg[0] - 16.0f;
 689                                         mins[1] = neworg[1] - 16.0f;
 690                                         mins[2] = neworg[2] - 16.0f;
 691                                         maxs[0] = neworg[0] + 16.0f;
 692                                         maxs[1] = neworg[1] + 16.0f;
 693                                         maxs[2] = neworg[2] + 16.0f;
 694                                         // how many particles to make
 695                                         temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 696                                         CL_Stardust(mins, maxs, temp);
 697                                 }
 698                                 d = 100;
 699                                 dlightcolor[0] += d * 1.0f;
 700                                 dlightcolor[1] += d * 0.7f;
 701                                 dlightcolor[2] += d * 0.3f;
 702                         }
 703                 }
 704
 705                 if (ent->persistent.muzzleflash > 0)
 706                 {
 707                         v2[0] = ent->render.matrix.m[0][0] * 18 + neworg[0];
 708                         v2[1] = ent->render.matrix.m[0][1] * 18 + neworg[1];
 709                         v2[2] = ent->render.matrix.m[0][2] * 18 + neworg[2] + 16;
 710                         CL_TraceLine(neworg, v2, v, NULL, 0, true, NULL);
 711
 712                         CL_AllocDlight (NULL, v, ent->persistent.muzzleflash, 1, 1, 1, 0, 0);
 713                         ent->persistent.muzzleflash -= cl.frametime * 1000;
 714                 }
 715
 716                 // LordHavoc: if the model has no flags, don't check each
 717                 if (ent->render.model && ent->render.model->flags)
 718                 {
 719                         // note: EF_ROTATE handled above, above matrix calculation
 720                         // only do trails if present in the previous frame as well
 721                         if (ent->state_previous.active)
 722                         {
 723                                 if (ent->render.model->flags & EF_GIB)
 724                                         CL_RocketTrail (oldorg, neworg, 2, ent);
 725                                 else if (ent->render.model->flags & EF_ZOMGIB)
 726                                         CL_RocketTrail (oldorg, neworg, 4, ent);
 727                                 else if (ent->render.model->flags & EF_TRACER)
 728                                 {
 729                                         CL_RocketTrail (oldorg, neworg, 3, ent);
 730                                         dlightcolor[0] += 0x10;
 731                                         dlightcolor[1] += 0x40;
 732                                         dlightcolor[2] += 0x10;
 733                                 }
 734                                 else if (ent->render.model->flags & EF_TRACER2)
 735                                 {
 736                                         CL_RocketTrail (oldorg, neworg, 5, ent);
 737                                         dlightcolor[0] += 0x50;
 738                                         dlightcolor[1] += 0x30;
 739                                         dlightcolor[2] += 0x10;
 740                                 }
 741                                 else if (ent->render.model->flags & EF_ROCKET)
 742                                 {
 743                                         CL_RocketTrail (oldorg, ent->render.origin, 0, ent);
 744                                         dlightcolor[0] += 200.0f;
 745                                         dlightcolor[1] += 160.0f;
 746                                         dlightcolor[2] +=  80.0f;
 747                                 }
 748                                 else if (ent->render.model->flags & EF_GRENADE)
 749                                 {
 750                                         if (ent->render.alpha == -1) // LordHavoc: Nehahra dem compatibility (cigar smoke)
 751                                                 CL_RocketTrail (oldorg, neworg, 7, ent);
 752                                         else
 753                                                 CL_RocketTrail (oldorg, neworg, 1, ent);
 754                                 }
 755                                 else if (ent->render.model->flags & EF_TRACER3)
 756                                 {
 757                                         CL_RocketTrail (oldorg, neworg, 6, ent);
 758                                         dlightcolor[0] += 0x50;
 759                                         dlightcolor[1] += 0x20;
 760                                         dlightcolor[2] += 0x40;
 761                                 }
 762                         }
 763                 }
 764                 // LordHavoc: customizable glow
 765                 if (ent->state_current.glowsize)
 766                 {
 767                         // * 4 for the expansion from 0-255 to 0-1023 range,
 768                         // / 255 to scale down byte colors
 769                         VectorMA(dlightcolor, ent->state_current.glowsize * (4.0f / 255.0f), (qbyte *)&palette_complete[ent->state_current.glowcolor], dlightcolor);
 770                 }
 771                 // LordHavoc: customizable trail
 772                 if (ent->render.flags & RENDER_GLOWTRAIL)
 773                         CL_RocketTrail2 (oldorg, neworg, ent->state_current.glowcolor, ent);
 774
 775                 if (dlightcolor[0] || dlightcolor[1] || dlightcolor[2])
 776                 {
 777                         VectorCopy(neworg, v);
 778                         // hack to make glowing player light shine on their gun
 779                         if (i == cl.viewentity/* && !chase_active.integer*/)
 780                                 v[2] += 30;
 781                         CL_AllocDlight (&ent->render, v, 1, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0);
 782                 }
 783
 784                 if (chase_active.integer && (ent->render.flags & RENDER_VIEWMODEL))
 785                         continue;
 786
 787                 // don't show entities with no modelindex (note: this still shows
 788                 // entities which have a modelindex that resolved to a NULL model)
 789                 if (!ent->state_current.modelindex)
 790                         continue;
 791                 if (effects & EF_NODRAW)
 792                         continue;
 793
 794                 // store a list of view-relative entities for later adjustment in view code
 795                 if (ent->render.flags & RENDER_VIEWMODEL)
 796                 {
 797                         if (numviewmodels < MAXVIEWMODELS)
 798                                 viewmodels[numviewmodels++] = ent;
 799                         continue;
 800                 }
 801
 802                 Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
 803
 804                 CL_BoundingBoxForEntity(&ent->render);
 805                 if (ent->render.model && ent->render.model->name[0] == '*' && ent->render.model->type == mod_brush)
 806                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 807
 808                 // note: the cl.viewentity and intermission check is to hide player
 809                 // shadow during intermission and during the Nehahra movie and
 810                 // Nehahra cinematics
 811                 if (!(ent->state_current.effects & EF_NOSHADOW)
 812                  && !(ent->state_current.effects & EF_ADDITIVE)
 813                  && (ent->state_current.alpha == 255)
 814                  && !(ent->render.flags & RENDER_VIEWMODEL)
 815                  && (i != cl.viewentity || (!cl.intermission && !Nehahrademcompatibility && !cl_noplayershadow.integer)))
 816                         ent->render.flags |= RENDER_SHADOW;
 817
 818                 if (r_refdef.numentities < r_refdef.maxentities)
 819                         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 820
 821                 if (cl_num_entities < i + 1)
 822                         cl_num_entities = i + 1;
 823         }
 824 }
 825
 826 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 827 {
 828         int i;
 829         cl_effect_t *e;
 830         if (!modelindex) // sanity check
 831                 return;
 832         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 833         {
 834                 if (e->active)
 835                         continue;
 836                 e->active = true;
 837                 VectorCopy(org, e->origin);
 838                 e->modelindex = modelindex;
 839                 e->starttime = cl.time;
 840                 e->startframe = startframe;
 841                 e->endframe = startframe + framecount;
 842                 e->framerate = framerate;
 843
 844                 e->frame = 0;
 845                 e->frame1time = cl.time;
 846                 e->frame2time = cl.time;
 847                 break;
 848         }
 849 }
 850
 851 static void CL_RelinkEffects(void)
 852 {
 853         int i, intframe;
 854         cl_effect_t *e;
 855         entity_t *ent;
 856         float frame;
 857
 858         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 859         {
 860                 if (e->active)
 861                 {
 862                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 863                         intframe = frame;
 864                         if (intframe < 0 || intframe >= e->endframe)
 865                         {
 866                                 e->active = false;
 867                                 memset(e, 0, sizeof(*e));
 868                                 continue;
 869                         }
 870
 871                         if (intframe != e->frame)
 872                         {
 873                                 e->frame = intframe;
 874                                 e->frame1time = e->frame2time;
 875                                 e->frame2time = cl.time;
 876                         }
 877
 878                         // if we're drawing effects, get a new temp entity
 879                         // (NewTempEntity adds it to the render entities list for us)
 880                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
 881                         {
 882                                 // interpolation stuff
 883                                 ent->render.frame1 = intframe;
 884                                 ent->render.frame2 = intframe + 1;
 885                                 if (ent->render.frame2 >= e->endframe)
 886                                         ent->render.frame2 = -1; // disappear
 887                                 ent->render.framelerp = frame - intframe;
 888                                 ent->render.frame1time = e->frame1time;
 889                                 ent->render.frame2time = e->frame2time;
 890
 891                                 // normal stuff
 892                                 //VectorCopy(e->origin, ent->render.origin);
 893                                 ent->render.model = cl.model_precache[e->modelindex];
 894                                 ent->render.frame = ent->render.frame2;
 895                                 ent->render.colormap = -1; // no special coloring
 896                                 //ent->render.scale = 1;
 897                                 ent->render.alpha = 1;
 898
 899                                 Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, e->origin[0], e->origin[1], e->origin[2], 0, 0, 0, 1);
 900                                 Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
 901                                 CL_BoundingBoxForEntity(&ent->render);
 902                         }
 903                 }
 904         }
 905 }
 906
 907 void CL_RelinkBeams (void)
 908 {
 909         int i;
 910         beam_t *b;
 911         vec3_t dist, org;
 912         float d;
 913         entity_t *ent;
 914         float yaw, pitch;
 915         float forward;
 916
 917         for (i = 0, b = cl_beams;i < cl_max_beams;i++, b++)
 918         {
 919                 if (!b->model || b->endtime < cl.time)
 920                         continue;
 921
 922                 // if coming from the player, update the start position
 923                 //if (b->entity == cl.viewentity)
 924                 //      VectorCopy (cl_entities[cl.viewentity].render.origin, b->start);
 925                 if (cl_beams_relative.integer && b->entity && cl_entities[b->entity].state_current.active && b->relativestartvalid)
 926                 {
 927                         entity_state_t *p = &cl_entities[b->entity].state_previous;
 928                         //entity_state_t *c = &cl_entities[b->entity].state_current;
 929                         entity_render_t *r = &cl_entities[b->entity].render;
 930                         matrix4x4_t matrix, imatrix;
 931                         if (b->relativestartvalid == 2)
 932                         {
 933                                 // not really valid yet, we need to get the orientation now
 934                                 // (ParseBeam flagged this because it is received before
 935                                 //  entities are received, by now they have been received)
 936                                 // note: because players create lightning in their think
 937                                 // function (which occurs before movement), they actually
 938                                 // have some lag in it's location, so compare to the
 939                                 // previous player state, not the latest
 940                                 if (b->entity == cl.viewentity)
 941                                         Matrix4x4_CreateFromQuakeEntity(&matrix, cl.viewentoriginold[0], cl.viewentoriginold[1], cl.viewentoriginold[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
 942                                 else
 943                                         Matrix4x4_CreateFromQuakeEntity(&matrix, p->origin[0], p->origin[1], p->origin[2] + 16, p->angles[0], p->angles[1], p->angles[2], 1);
 944                                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
 945                                 Matrix4x4_Transform(&imatrix, b->start, b->relativestart);
 946                                 Matrix4x4_Transform(&imatrix, b->end, b->relativeend);
 947                                 b->relativestartvalid = 1;
 948                         }
 949                         else
 950                         {
 951                                 if (b->entity == cl.viewentity)
 952                                         Matrix4x4_CreateFromQuakeEntity(&matrix, cl.viewentorigin[0], cl.viewentorigin[1], cl.viewentorigin[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
 953                                 else
 954                                         Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, r->angles[0], r->angles[1], r->angles[2], 1);
 955                                 Matrix4x4_Transform(&matrix, b->relativestart, b->start);
 956                                 Matrix4x4_Transform(&matrix, b->relativeend, b->end);
 957                         }
 958                 }
 959
 960                 if (b->lightning && cl_beams_polygons.integer)
 961                         continue;
 962
 963                 // calculate pitch and yaw
 964                 VectorSubtract (b->end, b->start, dist);
 965
 966                 if (dist[1] == 0 && dist[0] == 0)
 967                 {
 968                         yaw = 0;
 969                         if (dist[2] > 0)
 970                                 pitch = 90;
 971                         else
 972                                 pitch = 270;
 973                 }
 974                 else
 975                 {
 976                         yaw = (int) (atan2(dist[1], dist[0]) * 180 / M_PI);
 977                         if (yaw < 0)
 978                                 yaw += 360;
 979
 980                         forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
 981                         pitch = (int) (atan2(dist[2], forward) * 180 / M_PI);
 982                         if (pitch < 0)
 983                                 pitch += 360;
 984                 }
 985
 986                 // add new entities for the lightning
 987                 VectorCopy (b->start, org);
 988                 d = VectorNormalizeLength(dist);
 989                 while (d > 0)
 990                 {
 991                         ent = CL_NewTempEntity ();
 992                         if (!ent)
 993                                 return;
 994                         //VectorCopy (org, ent->render.origin);
 995                         ent->render.model = b->model;
 996                         ent->render.effects = EF_FULLBRIGHT;
 997                         //ent->render.angles[0] = pitch;
 998                         //ent->render.angles[1] = yaw;
 999                         //ent->render.angles[2] = rand()%360;
1000                         Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, org[0], org[1], org[2], pitch, yaw, lhrandom(0, 360), 1);
1001                         Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
1002                         CL_BoundingBoxForEntity(&ent->render);
1003                         VectorMA(org, 30, dist, org);
1004                         d -= 30;
1005                 }
1006         }
1007 }
1008
1009 cvar_t r_lightningbeam_thickness = {CVAR_SAVE, "r_lightningbeam_thickness", "4"};
1010 cvar_t r_lightningbeam_scroll = {CVAR_SAVE, "r_lightningbeam_scroll", "5"};
1011 cvar_t r_lightningbeam_repeatdistance = {CVAR_SAVE, "r_lightningbeam_repeatdistance", "1024"};
1012 cvar_t r_lightningbeam_color_red = {CVAR_SAVE, "r_lightningbeam_color_red", "1"};
1013 cvar_t r_lightningbeam_color_green = {CVAR_SAVE, "r_lightningbeam_color_green", "1"};
1014 cvar_t r_lightningbeam_color_blue = {CVAR_SAVE, "r_lightningbeam_color_blue", "1"};
1015
1016 rtexture_t *r_lightningbeamtexture;
1017 rtexturepool_t *r_lightningbeamtexturepool;
1018
1019 int r_lightningbeamelements[18] = {0, 1, 2, 0, 2, 3, 4, 5, 6, 4, 6, 7, 8, 9, 10, 8, 10, 11};
1020
1021 void r_lightningbeams_start(void)
1022 {
1023         float r, g, b, intensity, fx, width, center;
1024         int x, y;
1025         qbyte *data, *noise1, *noise2;
1026         data = Mem_Alloc(tempmempool, 32 * 512 * 4);
1027         noise1 = Mem_Alloc(tempmempool, 512 * 512);
1028         noise2 = Mem_Alloc(tempmempool, 512 * 512);
1029         fractalnoise(noise1, 512, 8);
1030         fractalnoise(noise2, 512, 16);
1031
1032         for (y = 0;y < 512;y++)
1033         {
1034                 width = noise1[y * 512] * (1.0f / 256.0f) * 3.0f + 3.0f;
1035                 center = (noise1[y * 512 + 64] / 256.0f) * (32.0f - (width + 1.0f) * 2.0f) + (width + 1.0f);
1036                 for (x = 0;x < 32;x++, fx++)
1037                 {
1038                         fx = (x - center) / width;
1039                         intensity = (1.0f - fx * fx) * (noise2[y*512+x] * (1.0f / 256.0f) * 0.33f + 0.66f);
1040                         intensity = bound(0, intensity, 1);
1041                         r = intensity * 2.0f - 1.0f;
1042                         g = intensity * 3.0f - 1.0f;
1043                         b = intensity * 3.0f;
1044                         data[(y * 32 + x) * 4 + 0] = (qbyte)(bound(0, r, 1) * 255.0f);
1045                         data[(y * 32 + x) * 4 + 1] = (qbyte)(bound(0, g, 1) * 255.0f);
1046                         data[(y * 32 + x) * 4 + 2] = (qbyte)(bound(0, b, 1) * 255.0f);
1047                         data[(y * 32 + x) * 4 + 3] = (qbyte)255;
1048                 }
1049         }
1050
1051         r_lightningbeamtexturepool = R_AllocTexturePool();
1052         r_lightningbeamtexture = R_LoadTexture2D(r_lightningbeamtexturepool, "lightningbeam", 32, 512, data, TEXTYPE_RGBA, TEXF_PRECACHE, NULL);
1053         Mem_Free(noise1);
1054         Mem_Free(noise2);
1055         Mem_Free(data);
1056 }
1057
1058 void r_lightningbeams_shutdown(void)
1059 {
1060         r_lightningbeamtexture = NULL;
1061         R_FreeTexturePool(&r_lightningbeamtexturepool);
1062 }
1063
1064 void r_lightningbeams_newmap(void)
1065 {
1066 }
1067
1068 void R_LightningBeams_Init(void)
1069 {
1070         Cvar_RegisterVariable(&r_lightningbeam_thickness);
1071         Cvar_RegisterVariable(&r_lightningbeam_scroll);
1072         Cvar_RegisterVariable(&r_lightningbeam_repeatdistance);
1073         Cvar_RegisterVariable(&r_lightningbeam_color_red);
1074         Cvar_RegisterVariable(&r_lightningbeam_color_green);
1075         Cvar_RegisterVariable(&r_lightningbeam_color_blue);
1076         R_RegisterModule("R_LightningBeams", r_lightningbeams_start, r_lightningbeams_shutdown, r_lightningbeams_newmap);
1077 }
1078
1079 void R_CalcLightningBeamPolygonVertices(float *v, float *tc, const float *start, const float *end, const float *offset, float t1, float t2)
1080 {
1081         // near right corner
1082         VectorAdd     (start, offset, (v +  0));tc[ 0] = 0;tc[ 1] = t1;
1083         // near left corner
1084         VectorSubtract(start, offset, (v +  4));tc[ 4] = 1;tc[ 5] = t1;
1085         // far left corner
1086         VectorSubtract(end  , offset, (v +  8));tc[ 8] = 1;tc[ 9] = t2;
1087         // far right corner
1088         VectorAdd     (end  , offset, (v + 12));tc[12] = 0;tc[13] = t2;
1089 }
1090
1091 void R_FogLightningBeamColors(const float *v, float *c, int numverts, float r, float g, float b, float a)
1092 {
1093         int i;
1094         vec3_t fogvec;
1095         float ifog;
1096         for (i = 0;i < numverts;i++, v += 4, c += 4)
1097         {
1098                 VectorSubtract(v, r_origin, fogvec);
1099                 ifog = 1 - exp(fogdensity/DotProduct(fogvec,fogvec));
1100                 c[0] = r * ifog;
1101                 c[1] = g * ifog;
1102                 c[2] = b * ifog;
1103                 c[3] = a;
1104         }
1105 }
1106
1107 float beamrepeatscale;
1108
1109 void R_DrawLightningBeamCallback(const void *calldata1, int calldata2)
1110 {
1111         const beam_t *b = calldata1;
1112         rmeshstate_t m;
1113         vec3_t beamdir, right, up, offset;
1114         float length, t1, t2;
1115         memset(&m, 0, sizeof(m));
1116         m.blendfunc1 = GL_SRC_ALPHA;
1117         m.blendfunc2 = GL_ONE;
1118         m.tex[0] = R_GetTexture(r_lightningbeamtexture);
1119         R_Mesh_State(&m);
1120         R_Mesh_Matrix(&r_identitymatrix);
1121
1122         // calculate beam direction (beamdir) vector and beam length
1123         // get difference vector
1124         VectorSubtract(b->end, b->start, beamdir);
1125         // find length of difference vector
1126         length = sqrt(DotProduct(beamdir, beamdir));
1127         // calculate scale to make beamdir a unit vector (normalized)
1128         t1 = 1.0f / length;
1129         // scale beamdir so it is now normalized
1130         VectorScale(beamdir, t1, beamdir);
1131
1132         // calculate up vector such that it points toward viewer, and rotates around the beamdir
1133         // get direction from start of beam to viewer
1134         VectorSubtract(r_origin, b->start, up);
1135         // remove the portion of the vector that moves along the beam
1136         // (this leaves only a vector pointing directly away from the beam)
1137         t1 = -DotProduct(up, beamdir);
1138         VectorMA(up, t1, beamdir, up);
1139         // now we have a vector pointing away from the beam, now we need to normalize it
1140         VectorNormalizeFast(up);
1141         // generate right vector from forward and up, the result is already normalized
1142         // (CrossProduct returns a vector of multiplied length of the two inputs)
1143         CrossProduct(beamdir, up, right);
1144
1145         // calculate T coordinate scrolling (start and end texcoord along the beam)
1146         t1 = cl.time * -r_lightningbeam_scroll.value + beamrepeatscale * DotProduct(b->start, beamdir);
1147         t1 = t1 - (int) t1;
1148         t2 = t1 + beamrepeatscale * length;
1149
1150         // the beam is 3 polygons in this configuration:
1151         //  *   2
1152         //   * *
1153         // 1******
1154         //   * *
1155         //  *   3
1156         // they are showing different portions of the beam texture, creating an
1157         // illusion of a beam that appears to curl around in 3D space
1158         // (and realize that the whole polygon assembly orients itself to face
1159         //  the viewer)
1160
1161         // polygon 1, verts 0-3
1162         VectorScale(right, r_lightningbeam_thickness.value, offset);
1163         R_CalcLightningBeamPolygonVertices(varray_vertex, varray_texcoord[0], b->start, b->end, offset, t1, t2);
1164
1165         // polygon 2, verts 4-7
1166         VectorAdd(right, up, offset);
1167         VectorScale(offset, r_lightningbeam_thickness.value * 0.70710681f, offset);
1168         R_CalcLightningBeamPolygonVertices(varray_vertex + 16, varray_texcoord[0] + 16, b->start, b->end, offset, t1 + 0.33, t2 + 0.33);
1169
1170         // polygon 3, verts 8-11
1171         VectorSubtract(right, up, offset);
1172         VectorScale(offset, r_lightningbeam_thickness.value * 0.70710681f, offset);
1173         R_CalcLightningBeamPolygonVertices(varray_vertex + 32, varray_texcoord[0] + 32, b->start, b->end, offset, t1 + 0.66, t2 + 0.66);
1174
1175         if (fogenabled)
1176         {
1177                 // per vertex colors if fog is used
1178                 GL_UseColorArray();
1179                 R_FogLightningBeamColors(varray_vertex, varray_color, 12, r_lightningbeam_color_red.value, r_lightningbeam_color_green.value, r_lightningbeam_color_blue.value, 1);
1180         }
1181         else
1182         {
1183                 // solid color if fog is not used
1184                 GL_Color(r_lightningbeam_color_red.value, r_lightningbeam_color_green.value, r_lightningbeam_color_blue.value, 1);
1185         }
1186
1187         // draw the 3 polygons as one batch of 6 triangles using the 12 vertices
1188         R_Mesh_Draw(12, 6, r_lightningbeamelements);
1189 }
1190
1191 void R_DrawLightningBeams (void)
1192 {
1193         int i;
1194         beam_t *b;
1195         vec3_t org;
1196
1197         if (!cl_beams_polygons.integer)
1198                 return;
1199
1200         beamrepeatscale = 1.0f / r_lightningbeam_repeatdistance.value;
1201         for (i = 0, b = cl_beams;i < cl_max_beams;i++, b++)
1202         {
1203                 if (b->model && b->endtime >= cl.time && b->lightning)
1204                 {
1205                         VectorAdd(b->start, b->end, org);
1206                         VectorScale(org, 0.5f, org);
1207                         R_MeshQueue_AddTransparent(org, R_DrawLightningBeamCallback, b, 0);
1208                 }
1209         }
1210 }
1211
1212
1213 void CL_LerpPlayer(float frac)
1214 {
1215         int i;
1216         float d;
1217
1218         if (cl.entitydatabase.numframes && cl.viewentity == cl.playerentity)
1219         {
1220                 cl.viewentorigin[0] = cl.viewentoriginold[0] + frac * (cl.viewentoriginnew[0] - cl.viewentoriginold[0]);
1221                 cl.viewentorigin[1] = cl.viewentoriginold[1] + frac * (cl.viewentoriginnew[1] - cl.viewentoriginold[1]);
1222                 cl.viewentorigin[2] = cl.viewentoriginold[2] + frac * (cl.viewentoriginnew[2] - cl.viewentoriginold[2]);
1223         }
1224         else
1225         {
1226                 VectorCopy (cl_entities[cl.viewentity].state_previous.origin, cl.viewentoriginold);
1227                 VectorCopy (cl_entities[cl.viewentity].state_current.origin, cl.viewentoriginnew);
1228                 VectorCopy (cl_entities[cl.viewentity].render.origin, cl.viewentorigin);
1229         }
1230
1231         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
1232
1233         for (i = 0;i < 3;i++)
1234                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
1235
1236         if (cls.demoplayback)
1237         {
1238                 // interpolate the angles
1239                 for (i = 0;i < 3;i++)
1240                 {
1241                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
1242                         if (d > 180)
1243                                 d -= 360;
1244                         else if (d < -180)
1245                                 d += 360;
1246                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
1247                 }
1248         }
1249 }
1250
1251 void CL_RelinkEntities (void)
1252 {
1253         float frac;
1254
1255         // fraction from previous network update to current
1256         frac = CL_LerpPoint();
1257
1258         CL_ClearTempEntities();
1259         CL_DecayLights();
1260         CL_RelinkWorld();
1261         CL_RelinkStaticEntities();
1262         CL_RelinkNetworkEntities();
1263         CL_RelinkEffects();
1264         CL_MoveParticles();
1265
1266         CL_LerpPlayer(frac);
1267
1268         CL_RelinkBeams();
1269 }
1270
1271
1272 /*
1273 ===============
1274 CL_ReadFromServer
1275
1276 Read all incoming data from the server
1277 ===============
1278 */
1279 int CL_ReadFromServer (void)
1280 {
1281         int ret, netshown;
1282
1283         cl.oldtime = cl.time;
1284         cl.time += cl.frametime;
1285
1286         netshown = false;
1287         do
1288         {
1289                 ret = CL_GetMessage ();
1290                 if (ret == -1)
1291                         Host_Error ("CL_ReadFromServer: lost server connection");
1292                 if (!ret)
1293                         break;
1294
1295                 cl.last_received_message = realtime;
1296
1297                 if (cl_shownet.integer)
1298                         netshown = true;
1299
1300                 CL_ParseServerMessage ();
1301         }
1302         while (ret && cls.state == ca_connected);
1303
1304         if (netshown)
1305                 Con_Printf ("\n");
1306
1307         r_refdef.numentities = 0;
1308         cl_num_entities = 0;
1309         cl_num_brushmodel_entities = 0;
1310
1311         if (cls.state == ca_connected && cls.signon == SIGNONS)
1312         {
1313                 CL_RelinkEntities ();
1314
1315                 // run cgame code (which can add more entities)
1316                 CL_CGVM_Frame();
1317         }
1318
1319 //
1320 // bring the links up to date
1321 //
1322         return 0;
1323 }
1324
1325 /*
1326 =================
1327 CL_SendCmd
1328 =================
1329 */
1330 void CL_SendCmd (void)
1331 {
1332         usercmd_t               cmd;
1333
1334         if (cls.state != ca_connected)
1335                 return;
1336
1337         if (cls.signon == SIGNONS)
1338         {
1339         // get basic movement from keyboard
1340                 CL_BaseMove (&cmd);
1341
1342                 IN_PreMove(); // OS independent code
1343
1344         // allow mice or other external controllers to add to the move
1345                 IN_Move (&cmd);
1346
1347                 IN_PostMove(); // OS independent code
1348
1349         // send the unreliable message
1350                 CL_SendMove (&cmd);
1351         }
1352 #ifndef NOROUTINGFIX
1353         else if (cls.signon == 0 && !cls.demoplayback)
1354         {
1355                 // LordHavoc: fix for NAT routing of netquake:
1356                 // bounce back a clc_nop message to the newly allocated server port,
1357                 // to establish a routing connection for incoming frames,
1358                 // the server waits for this before sending anything
1359                 if (realtime > cl.sendnoptime)
1360                 {
1361                         cl.sendnoptime = realtime + 3;
1362                         Con_DPrintf("sending clc_nop to get server's attention\n");
1363                         {
1364                                 sizebuf_t buf;
1365                                 qbyte data[128];
1366                                 buf.maxsize = 128;
1367                                 buf.cursize = 0;
1368                                 buf.data = data;
1369                                 MSG_WriteByte(&buf, clc_nop);
1370                                 if (NET_SendUnreliableMessage (cls.netcon, &buf) == -1)
1371                                 {
1372                                         Con_Printf ("CL_SendCmd: lost server connection\n");
1373                                         CL_Disconnect ();
1374                                 }
1375                         }
1376                 }
1377         }
1378 #endif
1379
1380         if (cls.demoplayback)
1381         {
1382                 SZ_Clear (&cls.message);
1383                 return;
1384         }
1385
1386 // send the reliable message
1387         if (!cls.message.cursize)
1388                 return;         // no message at all
1389
1390         if (!NET_CanSendMessage (cls.netcon))
1391         {
1392                 Con_DPrintf ("CL_WriteToServer: can't send\n");
1393                 if (developer.integer)
1394                         SZ_HexDumpToConsole(&cls.message);
1395                 return;
1396         }
1397
1398         if (NET_SendMessage (cls.netcon, &cls.message) == -1)
1399                 Host_Error ("CL_WriteToServer: lost server connection");
1400
1401         SZ_Clear (&cls.message);
1402 }
1403
1404 // LordHavoc: pausedemo command
1405 static void CL_PauseDemo_f (void)
1406 {
1407         cls.demopaused = !cls.demopaused;
1408         if (cls.demopaused)
1409                 Con_Printf("Demo paused\n");
1410         else
1411                 Con_Printf("Demo unpaused\n");
1412 }
1413
1414 /*
1415 ======================
1416 CL_PModel_f
1417 LordHavoc: Intended for Nehahra, I personally think this is dumb, but Mindcrime won't listen.
1418 ======================
1419 */
1420 static void CL_PModel_f (void)
1421 {
1422         int i;
1423         eval_t *val;
1424
1425         if (Cmd_Argc () == 1)
1426         {
1427                 Con_Printf ("\"pmodel\" is \"%s\"\n", cl_pmodel.string);
1428                 return;
1429         }
1430         i = atoi(Cmd_Argv(1));
1431
1432         if (cmd_source == src_command)
1433         {
1434                 if (cl_pmodel.integer == i)
1435                         return;
1436                 Cvar_SetValue ("_cl_pmodel", i);
1437                 if (cls.state == ca_connected)
1438                         Cmd_ForwardToServer ();
1439                 return;
1440         }
1441
1442         host_client->pmodel = i;
1443         if ((val = GETEDICTFIELDVALUE(host_client->edict, eval_pmodel)))
1444                 val->_float = i;
1445 }
1446
1447 /*
1448 ======================
1449 CL_Fog_f
1450 ======================
1451 */
1452 static void CL_Fog_f (void)
1453 {
1454         if (Cmd_Argc () == 1)
1455         {
1456                 Con_Printf ("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
1457                 return;
1458         }
1459         fog_density = atof(Cmd_Argv(1));
1460         fog_red = atof(Cmd_Argv(2));
1461         fog_green = atof(Cmd_Argv(3));
1462         fog_blue = atof(Cmd_Argv(4));
1463 }
1464
1465 /*
1466 =================
1467 CL_Init
1468 =================
1469 */
1470 void CL_Init (void)
1471 {
1472         cl_scores_mempool = Mem_AllocPool("client player info");
1473         cl_entities_mempool = Mem_AllocPool("client entities");
1474         cl_refdef_mempool = Mem_AllocPool("refdef");
1475
1476         memset(&r_refdef, 0, sizeof(r_refdef));
1477         // max entities sent to renderer per frame
1478         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1479         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1480         // 256k drawqueue buffer
1481         r_refdef.maxdrawqueuesize = 256 * 1024;
1482         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1483
1484         SZ_Alloc (&cls.message, 1024, "cls.message");
1485
1486         CL_InitInput ();
1487         CL_InitTEnts ();
1488
1489 //
1490 // register our commands
1491 //
1492         Cvar_RegisterVariable (&cl_name);
1493         Cvar_RegisterVariable (&cl_color);
1494         if (gamemode == GAME_NEHAHRA)
1495                 Cvar_RegisterVariable (&cl_pmodel);
1496         Cvar_RegisterVariable (&cl_upspeed);
1497         Cvar_RegisterVariable (&cl_forwardspeed);
1498         Cvar_RegisterVariable (&cl_backspeed);
1499         Cvar_RegisterVariable (&cl_sidespeed);
1500         Cvar_RegisterVariable (&cl_movespeedkey);
1501         Cvar_RegisterVariable (&cl_yawspeed);
1502         Cvar_RegisterVariable (&cl_pitchspeed);
1503         Cvar_RegisterVariable (&cl_anglespeedkey);
1504         Cvar_RegisterVariable (&cl_shownet);
1505         Cvar_RegisterVariable (&cl_nolerp);
1506         Cvar_RegisterVariable (&lookspring);
1507         Cvar_RegisterVariable (&lookstrafe);
1508         Cvar_RegisterVariable (&sensitivity);
1509         Cvar_RegisterVariable (&freelook);
1510
1511         Cvar_RegisterVariable (&m_pitch);
1512         Cvar_RegisterVariable (&m_yaw);
1513         Cvar_RegisterVariable (&m_forward);
1514         Cvar_RegisterVariable (&m_side);
1515
1516         Cvar_RegisterVariable (&cl_itembobspeed);
1517         Cvar_RegisterVariable (&cl_itembobheight);
1518
1519         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1520         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1521         Cmd_AddCommand ("record", CL_Record_f);
1522         Cmd_AddCommand ("stop", CL_Stop_f);
1523         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1524         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1525
1526         Cmd_AddCommand ("fog", CL_Fog_f);
1527
1528         // LordHavoc: added pausedemo
1529         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1530         if (gamemode == GAME_NEHAHRA)
1531                 Cmd_AddCommand ("pmodel", CL_PModel_f);
1532
1533         Cvar_RegisterVariable(&r_draweffects);
1534         Cvar_RegisterVariable(&cl_explosions);
1535         Cvar_RegisterVariable(&cl_stainmaps);
1536         Cvar_RegisterVariable(&cl_beams_polygons);
1537         Cvar_RegisterVariable(&cl_beams_relative);
1538         Cvar_RegisterVariable(&cl_noplayershadow);
1539
1540         R_LightningBeams_Init();
1541
1542         CL_Parse_Init();
1543         CL_Particles_Init();
1544         CL_Screen_Init();
1545         CL_CGVM_Init();
1546
1547         CL_Video_Init();
1548 }
1549