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 #include "image.h"
  26
  27 // we need to declare some mouse variables here, because the menu system
  28 // references them even when on a unix system.
  29
  30 cvar_t cl_shownet = {0, "cl_shownet","0"};
  31 cvar_t cl_nolerp = {0, "cl_nolerp", "0"};
  32
  33 cvar_t cl_itembobheight = {0, "cl_itembobheight", "8"};
  34 cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5"};
  35
  36 cvar_t lookspring = {CVAR_SAVE, "lookspring","0"};
  37 cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0"};
  38 cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3", 1, 30};
  39
  40 cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022"};
  41 cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022"};
  42 cvar_t m_forward = {CVAR_SAVE, "m_forward","1"};
  43 cvar_t m_side = {CVAR_SAVE, "m_side","0.8"};
  44
  45 cvar_t freelook = {CVAR_SAVE, "freelook", "1"};
  46
  47 cvar_t r_draweffects = {0, "r_draweffects", "1"};
  48
  49 cvar_t cl_explosions_alpha_start = {CVAR_SAVE, "cl_explosions_alpha_start", "1.5"};
  50 cvar_t cl_explosions_alpha_end = {CVAR_SAVE, "cl_explosions_alpha_end", "0"};
  51 cvar_t cl_explosions_size_start = {CVAR_SAVE, "cl_explosions_size_start", "16"};
  52 cvar_t cl_explosions_size_end = {CVAR_SAVE, "cl_explosions_size_end", "128"};
  53 cvar_t cl_explosions_lifetime = {CVAR_SAVE, "cl_explosions_lifetime", "0.5"};
  54
  55 cvar_t cl_stainmaps = {CVAR_SAVE, "cl_stainmaps", "1"};
  56 cvar_t cl_stainmaps_clearonload = {CVAR_SAVE, "cl_stainmaps_clearonload", "1"};
  57
  58 cvar_t cl_beams_polygons = {CVAR_SAVE, "cl_beams_polygons", "1"};
  59 cvar_t cl_beams_relative = {CVAR_SAVE, "cl_beams_relative", "1"};
  60 cvar_t cl_beams_lightatend = {CVAR_SAVE, "cl_beams_lightatend", "0"};
  61
  62 cvar_t cl_noplayershadow = {CVAR_SAVE, "cl_noplayershadow", "0"};
  63
  64 cvar_t cl_prydoncursor = {0, "cl_prydoncursor", "0"};
  65
  66 mempool_t *cl_refdef_mempool;
  67 mempool_t *cl_entities_mempool;
  68
  69 client_static_t cls;
  70 client_state_t  cl;
  71
  72 int cl_max_entities;
  73 int cl_max_static_entities;
  74 int cl_max_temp_entities;
  75 int cl_max_effects;
  76 int cl_max_beams;
  77 int cl_max_dlights;
  78 int cl_max_lightstyle;
  79 int cl_max_brushmodel_entities;
  80
  81 entity_t *cl_entities;
  82 qbyte *cl_entities_active;
  83 entity_t *cl_static_entities;
  84 entity_t *cl_temp_entities;
  85 cl_effect_t *cl_effects;
  86 beam_t *cl_beams;
  87 dlight_t *cl_dlights;
  88 lightstyle_t *cl_lightstyle;
  89 entity_render_t **cl_brushmodel_entities;
  90
  91 int cl_num_entities;
  92 int cl_num_static_entities;
  93 int cl_num_temp_entities;
  94 int cl_num_brushmodel_entities;
  95
  96 /*
  97 =====================
  98 CL_ClearState
  99
 100 =====================
 101 */
 102 void CL_ClearState(void)
 103 {
 104         int i;
 105
 106         if (!sv.active)
 107                 Host_ClearMemory ();
 108
 109         // note: this also gets rid of the entity database
 110         Mem_EmptyPool(cl_entities_mempool);
 111
 112 // wipe the entire cl structure
 113         memset (&cl, 0, sizeof(cl));
 114         // reset the view zoom interpolation
 115         cl.viewzoomold = cl.viewzoomnew = 1;
 116
 117         SZ_Clear (&cls.message);
 118
 119         cl_num_entities = 0;
 120         cl_num_static_entities = 0;
 121         cl_num_temp_entities = 0;
 122         cl_num_brushmodel_entities = 0;
 123
 124         // tweak these if the game runs out
 125         cl_max_entities = MAX_EDICTS;
 126         cl_max_static_entities = 256;
 127         cl_max_temp_entities = 512;
 128         cl_max_effects = 256;
 129         cl_max_beams = 256;
 130         cl_max_dlights = MAX_DLIGHTS;
 131         cl_max_lightstyle = MAX_LIGHTSTYLES;
 132         cl_max_brushmodel_entities = MAX_EDICTS;
 133
 134         cl_entities = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(entity_t));
 135         cl_entities_active = Mem_Alloc(cl_entities_mempool, cl_max_entities * sizeof(qbyte));
 136         cl_static_entities = Mem_Alloc(cl_entities_mempool, cl_max_static_entities * sizeof(entity_t));
 137         cl_temp_entities = Mem_Alloc(cl_entities_mempool, cl_max_temp_entities * sizeof(entity_t));
 138         cl_effects = Mem_Alloc(cl_entities_mempool, cl_max_effects * sizeof(cl_effect_t));
 139         cl_beams = Mem_Alloc(cl_entities_mempool, cl_max_beams * sizeof(beam_t));
 140         cl_dlights = Mem_Alloc(cl_entities_mempool, cl_max_dlights * sizeof(dlight_t));
 141         cl_lightstyle = Mem_Alloc(cl_entities_mempool, cl_max_lightstyle * sizeof(lightstyle_t));
 142         cl_brushmodel_entities = Mem_Alloc(cl_entities_mempool, cl_max_brushmodel_entities * sizeof(entity_render_t *));
 143
 144         CL_Screen_NewMap();
 145
 146         CL_Particles_Clear();
 147
 148         // LordHavoc: have to set up the baseline info for alpha and other stuff
 149         for (i = 0;i < cl_max_entities;i++)
 150         {
 151                 cl_entities[i].state_baseline = defaultstate;
 152                 cl_entities[i].state_previous = defaultstate;
 153                 cl_entities[i].state_current = defaultstate;
 154         }
 155
 156         CL_CGVM_Clear();
 157 }
 158
 159 /*
 160 =====================
 161 CL_Disconnect
 162
 163 Sends a disconnect message to the server
 164 This is also called on Host_Error, so it shouldn't cause any errors
 165 =====================
 166 */
 167 void CL_Disconnect(void)
 168 {
 169         if (cls.state == ca_dedicated)
 170                 return;
 171
 172         Con_DPrintf("CL_Disconnect\n");
 173
 174 // stop sounds (especially looping!)
 175         S_StopAllSounds ();
 176
 177         // clear contents blends
 178         cl.cshifts[0].percent = 0;
 179         cl.cshifts[1].percent = 0;
 180         cl.cshifts[2].percent = 0;
 181         cl.cshifts[3].percent = 0;
 182
 183         cl.worldmodel = NULL;
 184
 185         if (cls.demoplayback)
 186                 CL_StopPlayback();
 187         else if (cls.netcon)
 188         {
 189                 if (cls.demorecording)
 190                         CL_Stop_f();
 191
 192                 Con_DPrint("Sending clc_disconnect\n");
 193                 SZ_Clear(&cls.message);
 194                 MSG_WriteByte(&cls.message, clc_disconnect);
 195                 NetConn_SendUnreliableMessage(cls.netcon, &cls.message);
 196                 SZ_Clear(&cls.message);
 197                 NetConn_Close(cls.netcon);
 198                 cls.netcon = NULL;
 199         }
 200         cls.state = ca_disconnected;
 201
 202         cls.demoplayback = cls.timedemo = false;
 203         cls.signon = 0;
 204 }
 205
 206 void CL_Disconnect_f(void)
 207 {
 208         CL_Disconnect ();
 209         if (sv.active)
 210                 Host_ShutdownServer (false);
 211 }
 212
 213
 214
 215
 216 /*
 217 =====================
 218 CL_EstablishConnection
 219
 220 Host should be either "local" or a net address
 221 =====================
 222 */
 223 void CL_EstablishConnection(const char *host)
 224 {
 225         if (cls.state == ca_dedicated)
 226                 return;
 227
 228         // clear menu's connect error message
 229         M_Update_Return_Reason("");
 230         cls.demonum = -1;
 231
 232         // stop demo loop in case this fails
 233         CL_Disconnect();
 234         NetConn_ClientFrame();
 235         NetConn_ServerFrame();
 236
 237         if (LHNETADDRESS_FromString(&cls.connect_address, host, 26000) && (cls.connect_mysocket = NetConn_ChooseClientSocketForAddress(&cls.connect_address)))
 238         {
 239                 cls.connect_trying = true;
 240                 cls.connect_remainingtries = 3;
 241                 cls.connect_nextsendtime = 0;
 242                 M_Update_Return_Reason("Trying to connect...");
 243                 if (sv.active)
 244                 {
 245                         NetConn_ClientFrame();
 246                         NetConn_ServerFrame();
 247                         NetConn_ClientFrame();
 248                         NetConn_ServerFrame();
 249                         NetConn_ClientFrame();
 250                         NetConn_ServerFrame();
 251                         NetConn_ClientFrame();
 252                         NetConn_ServerFrame();
 253                 }
 254         }
 255         else
 256         {
 257                 Con_Print("Unable to find a suitable network socket to connect to server.\n");
 258                 M_Update_Return_Reason("No network");
 259         }
 260 }
 261
 262 /*
 263 ==============
 264 CL_PrintEntities_f
 265 ==============
 266 */
 267 static void CL_PrintEntities_f(void)
 268 {
 269         entity_t *ent;
 270         int i, j;
 271         char name[32];
 272
 273         for (i = 0, ent = cl_entities;i < cl_num_entities;i++, ent++)
 274         {
 275                 if (!ent->state_current.active)
 276                         continue;
 277
 278                 if (ent->render.model)
 279                         strlcpy (name, ent->render.model->name, 25);
 280                 else
 281                         strcpy(name, "--no model--");
 282                 for (j = strlen(name);j < 25;j++)
 283                         name[j] = ' ';
 284                 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);
 285         }
 286 }
 287
 288 //static const vec3_t nomodelmins = {-16, -16, -16};
 289 //static const vec3_t nomodelmaxs = {16, 16, 16};
 290 void CL_BoundingBoxForEntity(entity_render_t *ent)
 291 {
 292         if (ent->model)
 293         {
 294                 //if (ent->angles[0] || ent->angles[2])
 295                 if (ent->matrix.m[2][0] != 0 || ent->matrix.m[2][1] != 0)
 296                 {
 297                         // pitch or roll
 298                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->rotatedmins[0];
 299                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->rotatedmins[1];
 300                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->rotatedmins[2];
 301                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->rotatedmaxs[0];
 302                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->rotatedmaxs[1];
 303                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->rotatedmaxs[2];
 304                         //VectorAdd(ent->origin, ent->model->rotatedmins, ent->mins);
 305                         //VectorAdd(ent->origin, ent->model->rotatedmaxs, ent->maxs);
 306                 }
 307                 //else if (ent->angles[1])
 308                 else if (ent->matrix.m[0][1] != 0 || ent->matrix.m[1][0] != 0)
 309                 {
 310                         // yaw
 311                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->yawmins[0];
 312                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->yawmins[1];
 313                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->yawmins[2];
 314                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->yawmaxs[0];
 315                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->yawmaxs[1];
 316                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->yawmaxs[2];
 317                         //VectorAdd(ent->origin, ent->model->yawmins, ent->mins);
 318                         //VectorAdd(ent->origin, ent->model->yawmaxs, ent->maxs);
 319                 }
 320                 else
 321                 {
 322                         ent->mins[0] = ent->matrix.m[0][3] + ent->model->normalmins[0];
 323                         ent->mins[1] = ent->matrix.m[1][3] + ent->model->normalmins[1];
 324                         ent->mins[2] = ent->matrix.m[2][3] + ent->model->normalmins[2];
 325                         ent->maxs[0] = ent->matrix.m[0][3] + ent->model->normalmaxs[0];
 326                         ent->maxs[1] = ent->matrix.m[1][3] + ent->model->normalmaxs[1];
 327                         ent->maxs[2] = ent->matrix.m[2][3] + ent->model->normalmaxs[2];
 328                         //VectorAdd(ent->origin, ent->model->normalmins, ent->mins);
 329                         //VectorAdd(ent->origin, ent->model->normalmaxs, ent->maxs);
 330                 }
 331         }
 332         else
 333         {
 334                 ent->mins[0] = ent->matrix.m[0][3] - 16;
 335                 ent->mins[1] = ent->matrix.m[1][3] - 16;
 336                 ent->mins[2] = ent->matrix.m[2][3] - 16;
 337                 ent->maxs[0] = ent->matrix.m[0][3] + 16;
 338                 ent->maxs[1] = ent->matrix.m[1][3] + 16;
 339                 ent->maxs[2] = ent->matrix.m[2][3] + 16;
 340                 //VectorAdd(ent->origin, nomodelmins, ent->mins);
 341                 //VectorAdd(ent->origin, nomodelmaxs, ent->maxs);
 342         }
 343 }
 344
 345 /*
 346 ===============
 347 CL_LerpPoint
 348
 349 Determines the fraction between the last two messages that the objects
 350 should be put at.
 351 ===============
 352 */
 353 static float CL_LerpPoint(void)
 354 {
 355         float f;
 356
 357         // dropped packet, or start of demo
 358         if (cl.mtime[1] < cl.mtime[0] - 0.1)
 359                 cl.mtime[1] = cl.mtime[0] - 0.1;
 360
 361         cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 362
 363         // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
 364         f = cl.mtime[0] - cl.mtime[1];
 365         if (!f || cl_nolerp.integer || cls.timedemo || cl.islocalgame)
 366         {
 367                 cl.time = cl.mtime[0];
 368                 return 1;
 369         }
 370
 371         f = (cl.time - cl.mtime[1]) / f;
 372         return bound(0, f, 1);
 373 }
 374
 375 void CL_ClearTempEntities (void)
 376 {
 377         cl_num_temp_entities = 0;
 378 }
 379
 380 entity_t *CL_NewTempEntity(void)
 381 {
 382         entity_t *ent;
 383
 384         if (r_refdef.numentities >= r_refdef.maxentities)
 385                 return NULL;
 386         if (cl_num_temp_entities >= cl_max_temp_entities)
 387                 return NULL;
 388         ent = &cl_temp_entities[cl_num_temp_entities++];
 389         memset (ent, 0, sizeof(*ent));
 390         r_refdef.entities[r_refdef.numentities++] = &ent->render;
 391
 392         ent->render.colormap = -1; // no special coloring
 393         ent->render.scale = 1;
 394         ent->render.alpha = 1;
 395         VectorSet(ent->render.colormod, 1, 1, 1);
 396         return ent;
 397 }
 398
 399 void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
 400 {
 401         int i;
 402         cl_effect_t *e;
 403         if (!modelindex) // sanity check
 404                 return;
 405         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 406         {
 407                 if (e->active)
 408                         continue;
 409                 e->active = true;
 410                 VectorCopy(org, e->origin);
 411                 e->modelindex = modelindex;
 412                 e->starttime = cl.time;
 413                 e->startframe = startframe;
 414                 e->endframe = startframe + framecount;
 415                 e->framerate = framerate;
 416
 417                 e->frame = 0;
 418                 e->frame1time = cl.time;
 419                 e->frame2time = cl.time;
 420                 break;
 421         }
 422 }
 423
 424 void CL_AllocDlight(entity_render_t *ent, matrix4x4_t *matrix, float radius, float red, float green, float blue, float decay, float lifetime, int cubemapnum, int style, int shadowenable, vec_t corona, vec_t coronasizescale, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int flags)
 425 {
 426         int i;
 427         dlight_t *dl;
 428
 429         /*
 430 // first look for an exact key match
 431         if (ent)
 432         {
 433                 dl = cl_dlights;
 434                 for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 435                         if (dl->ent == ent)
 436                                 goto dlightsetup;
 437         }
 438         */
 439
 440 // then look for anything else
 441         dl = cl_dlights;
 442         for (i = 0;i < MAX_DLIGHTS;i++, dl++)
 443                 if (!dl->radius)
 444                         goto dlightsetup;
 445
 446         // unable to find one
 447         return;
 448
 449 dlightsetup:
 450         //Con_Printf("dlight %i : %f %f %f : %f %f %f\n", i, org[0], org[1], org[2], red * radius, green * radius, blue * radius);
 451         memset (dl, 0, sizeof(*dl));
 452         dl->matrix = *matrix;
 453         dl->ent = ent;
 454         dl->origin[0] = dl->matrix.m[0][3];
 455         dl->origin[1] = dl->matrix.m[1][3];
 456         dl->origin[2] = dl->matrix.m[2][3];
 457         CL_FindNonSolidLocation(dl->origin, dl->origin, 6);
 458         dl->matrix.m[0][3] = dl->origin[0];
 459         dl->matrix.m[1][3] = dl->origin[1];
 460         dl->matrix.m[2][3] = dl->origin[2];
 461         dl->radius = radius;
 462         dl->color[0] = red;
 463         dl->color[1] = green;
 464         dl->color[2] = blue;
 465         dl->decay = decay;
 466         if (lifetime)
 467                 dl->die = cl.time + lifetime;
 468         else
 469                 dl->die = 0;
 470         dl->cubemapnum = cubemapnum;
 471         dl->style = style;
 472         dl->shadow = shadowenable;
 473         dl->corona = corona;
 474         dl->flags = flags;
 475         dl->coronasizescale = coronasizescale;
 476         dl->ambientscale = ambientscale;
 477         dl->diffusescale = diffusescale;
 478         dl->specularscale = specularscale;
 479 }
 480
 481 void CL_DecayLights(void)
 482 {
 483         int i;
 484         dlight_t *dl;
 485         float time;
 486
 487         time = cl.time - cl.oldtime;
 488         for (i = 0, dl = cl_dlights;i < MAX_DLIGHTS;i++, dl++)
 489                 if (dl->radius)
 490                         dl->radius = (cl.time < dl->die) ? max(0, dl->radius - time * dl->decay) : 0;
 491 }
 492
 493 #define MAXVIEWMODELS 32
 494 entity_t *viewmodels[MAXVIEWMODELS];
 495 int numviewmodels;
 496
 497 matrix4x4_t viewmodelmatrix;
 498
 499 static int entitylinkframenumber;
 500
 501 static const vec3_t muzzleflashorigin = {18, 0, 0};
 502
 503 extern void V_DriftPitch(void);
 504 extern void V_FadeViewFlashs(void);
 505 extern void V_CalcViewBlend(void);
 506
 507 extern void V_CalcRefdef(void);
 508 // note this is a recursive function, but it can never get in a runaway loop (because of the delayedlink flags)
 509 void CL_LinkNetworkEntity(entity_t *e)
 510 {
 511         matrix4x4_t *matrix, blendmatrix, tempmatrix, matrix2;
 512         //matrix4x4_t dlightmatrix;
 513         int j, k, l, trailtype, temp;
 514         float origin[3], angles[3], delta[3], lerp, dlightcolor[3], dlightradius, mins[3], maxs[3], v[3], v2[3], d;
 515         entity_t *t;
 516         model_t *model;
 517         //entity_persistent_t *p = &e->persistent;
 518         //entity_render_t *r = &e->render;
 519         if (e->persistent.linkframe != entitylinkframenumber)
 520         {
 521                 e->persistent.linkframe = entitylinkframenumber;
 522                 // skip inactive entities and world
 523                 if (!e->state_current.active || e == cl_entities)
 524                         return;
 525                 e->render.alpha = e->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
 526                 e->render.scale = e->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
 527                 e->render.flags = e->state_current.flags;
 528                 e->render.effects = e->state_current.effects;
 529                 if (e->state_current.flags & RENDER_COLORMAPPED)
 530                         e->render.colormap = e->state_current.colormap;
 531                 else if (cl.scores != NULL && e->state_current.colormap)
 532                         e->render.colormap = cl.scores[e->state_current.colormap - 1].colors; // color it
 533                 else
 534                         e->render.colormap = -1; // no special coloring
 535                 e->render.skinnum = e->state_current.skin;
 536                 VectorScale(e->state_current.colormod, (1.0f / 32.0f), e->render.colormod);
 537                 if (e->render.flags & RENDER_VIEWMODEL)
 538                 {
 539                         if (!r_drawviewmodel.integer || chase_active.integer || envmap)
 540                                 return;
 541                         if (cl.viewentity)
 542                                 CL_LinkNetworkEntity(cl_entities + cl.viewentity);
 543                         matrix = &viewmodelmatrix;
 544                         if (e == &cl.viewent && cl.viewentity >= 0 && cl.viewentity < MAX_EDICTS && cl_entities[cl.viewentity].state_current.active)
 545                         {
 546                                 e->state_current.alpha = cl_entities[cl.viewentity].state_current.alpha;
 547                                 e->state_current.effects = EF_NOSHADOW | (cl_entities[cl.viewentity].state_current.effects & (EF_ADDITIVE | EF_REFLECTIVE | EF_FULLBRIGHT | EF_NODEPTHTEST));
 548                         }
 549                 }
 550                 else
 551                 {
 552                         t = cl_entities + e->state_current.tagentity;
 553                         if (!t->state_current.active)
 554                                 return;
 555                         // note: this can link to world
 556                         CL_LinkNetworkEntity(t);
 557                         // make relative to the entity
 558                         matrix = &t->render.matrix;
 559                         // some properties of the tag entity carry over
 560                         e->render.flags |= t->render.flags & RENDER_EXTERIORMODEL;
 561                         // if a valid tagindex is used, make it relative to that tag instead
 562                         // FIXME: use a model function to get tag info (need to handle skeletal)
 563                         if (e->state_current.tagentity && e->state_current.tagindex >= 1 && (model = t->render.model) && e->state_current.tagindex <= t->render.model->alias.aliasnum_tags)
 564                         {
 565                                 // blend the matrices
 566                                 memset(&blendmatrix, 0, sizeof(blendmatrix));
 567                                 for (j = 0;j < 4 && t->render.frameblend[j].lerp > 0;j++)
 568                                 {
 569                                         matrix = &t->render.model->alias.aliasdata_tags[t->render.frameblend[j].frame * t->render.model->alias.aliasnum_tags + (e->state_current.tagindex - 1)].matrix;
 570                                         d = t->render.frameblend[j].lerp;
 571                                         for (l = 0;l < 4;l++)
 572                                                 for (k = 0;k < 4;k++)
 573                                                         blendmatrix.m[l][k] += d * matrix->m[l][k];
 574                                 }
 575                                 // concat the tag matrices onto the entity matrix
 576                                 Matrix4x4_Concat(&tempmatrix, &t->render.matrix, &blendmatrix);
 577                                 // use the constructed tag matrix
 578                                 matrix = &tempmatrix;
 579                         }
 580                 }
 581
 582                 // movement lerp
 583                 if (e->persistent.lerpdeltatime > 0 && (lerp = (cl.time - e->persistent.lerpstarttime) / e->persistent.lerpdeltatime) < 1)
 584                 {
 585                         // interpolate the origin and angles
 586                         VectorLerp(e->persistent.oldorigin, lerp, e->persistent.neworigin, origin);
 587                         VectorSubtract(e->persistent.newangles, e->persistent.oldangles, delta);
 588                         if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
 589                         if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
 590                         if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
 591                         VectorMA(e->persistent.oldangles, lerp, delta, angles);
 592                 }
 593                 else
 594                 {
 595                         // no interpolation
 596                         VectorCopy(e->persistent.neworigin, origin);
 597                         VectorCopy(e->persistent.newangles, angles);
 598                 }
 599
 600                 // model setup and some modelflags
 601                 e->render.model = cl.model_precache[e->state_current.modelindex];
 602                 if (e->render.model)
 603                 {
 604                         Mod_CheckLoaded(e->render.model);
 605                         // if model is alias or this is a tenebrae-like dlight, reverse pitch direction
 606                         if (e->render.model->type == mod_alias || (e->state_current.lightpflags & PFLAGS_FULLDYNAMIC))
 607                                 angles[0] = -angles[0];
 608                         if ((e->render.model->flags & EF_ROTATE) && (!e->state_current.tagentity && !(e->render.flags & RENDER_VIEWMODEL)))
 609                         {
 610                                 angles[1] = ANGLEMOD(100*cl.time);
 611                                 if (cl_itembobheight.value)
 612                                         origin[2] += (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
 613                         }
 614                         // transfer certain model flags to effects
 615                         if (e->render.model->flags2 & EF_FULLBRIGHT)
 616                                 e->render.effects |= EF_FULLBRIGHT;
 617                         if (cl_prydoncursor.integer && (e->render.effects & EF_SELECTABLE) && cl.cmd.cursor_entitynumber == e - cl_entities)
 618                                 VectorScale(e->render.colormod, 2, e->render.colormod);
 619                 }
 620
 621                 // animation lerp
 622                 if (e->render.frame2 == e->state_current.frame)
 623                 {
 624                         // update frame lerp fraction
 625                         e->render.framelerp = 1;
 626                         if (e->render.frame2time > e->render.frame1time)
 627                         {
 628                                 // make sure frame lerp won't last longer than 100ms
 629                                 // (this mainly helps with models that use framegroups and
 630                                 // switch between them infrequently)
 631                                 e->render.framelerp = (cl.time - e->render.frame2time) / min(e->render.frame2time - e->render.frame1time, 0.1);
 632                                 e->render.framelerp = bound(0, e->render.framelerp, 1);
 633                         }
 634                 }
 635                 else
 636                 {
 637                         // begin a new frame lerp
 638                         e->render.frame1 = e->render.frame2;
 639                         e->render.frame1time = e->render.frame2time;
 640                         e->render.frame = e->render.frame2 = e->state_current.frame;
 641                         e->render.frame2time = cl.time;
 642                         e->render.framelerp = 0;
 643                 }
 644                 R_LerpAnimation(&e->render);
 645
 646                 // set up the render matrix
 647                 // FIXME: e->render.scale should go away
 648                 Matrix4x4_CreateFromQuakeEntity(&matrix2, origin[0], origin[1], origin[2], angles[0], angles[1], angles[2], e->render.scale);
 649                 // concat the matrices to make the entity relative to its tag
 650                 Matrix4x4_Concat(&e->render.matrix, matrix, &matrix2);
 651                 // make the other useful stuff
 652                 Matrix4x4_Invert_Simple(&e->render.inversematrix, &e->render.matrix);
 653                 CL_BoundingBoxForEntity(&e->render);
 654
 655                 // handle effects now that we know where this entity is in the world...
 656                 origin[0] = e->render.matrix.m[0][3];
 657                 origin[1] = e->render.matrix.m[1][3];
 658                 origin[2] = e->render.matrix.m[2][3];
 659                 trailtype = -1;
 660                 dlightradius = 0;
 661                 dlightcolor[0] = 0;
 662                 dlightcolor[1] = 0;
 663                 dlightcolor[2] = 0;
 664                 // LordHavoc: if the entity has no effects, don't check each
 665                 if (e->render.effects)
 666                 {
 667                         if (e->render.effects & EF_BRIGHTFIELD)
 668                         {
 669                                 if (gamemode == GAME_NEXUIZ)
 670                                 {
 671                                         dlightradius = max(dlightradius, 200);
 672                                         dlightcolor[0] += 0.75f;
 673                                         dlightcolor[1] += 1.50f;
 674                                         dlightcolor[2] += 3.00f;
 675                                         trailtype = 8;
 676                                 }
 677                                 else
 678                                         CL_EntityParticles(e);
 679                         }
 680                         if (e->render.effects & EF_MUZZLEFLASH)
 681                                 e->persistent.muzzleflash = 1.0f;
 682                         if (e->render.effects & EF_DIMLIGHT)
 683                         {
 684                                 dlightradius = max(dlightradius, 200);
 685                                 dlightcolor[0] += 1.50f;
 686                                 dlightcolor[1] += 1.50f;
 687                                 dlightcolor[2] += 1.50f;
 688                         }
 689                         if (e->render.effects & EF_BRIGHTLIGHT)
 690                         {
 691                                 dlightradius = max(dlightradius, 400);
 692                                 dlightcolor[0] += 3.00f;
 693                                 dlightcolor[1] += 3.00f;
 694                                 dlightcolor[2] += 3.00f;
 695                         }
 696                         // LordHavoc: more effects
 697                         if (e->render.effects & EF_RED) // red
 698                         {
 699                                 dlightradius = max(dlightradius, 200);
 700                                 dlightcolor[0] += 1.50f;
 701                                 dlightcolor[1] += 0.15f;
 702                                 dlightcolor[2] += 0.15f;
 703                         }
 704                         if (e->render.effects & EF_BLUE) // blue
 705                         {
 706                                 dlightradius = max(dlightradius, 200);
 707                                 dlightcolor[0] += 0.15f;
 708                                 dlightcolor[1] += 0.15f;
 709                                 dlightcolor[2] += 1.50f;
 710                         }
 711                         if (e->render.effects & EF_FLAME)
 712                         {
 713                                 mins[0] = origin[0] - 16.0f;
 714                                 mins[1] = origin[1] - 16.0f;
 715                                 mins[2] = origin[2] - 16.0f;
 716                                 maxs[0] = origin[0] + 16.0f;
 717                                 maxs[1] = origin[1] + 16.0f;
 718                                 maxs[2] = origin[2] + 16.0f;
 719                                 // how many flames to make
 720                                 temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
 721                                 CL_FlameCube(mins, maxs, temp);
 722                                 d = lhrandom(0.75f, 1);
 723                                 dlightradius = max(dlightradius, 200);
 724                                 dlightcolor[0] += d * 2.0f;
 725                                 dlightcolor[1] += d * 1.5f;
 726                                 dlightcolor[2] += d * 0.5f;
 727                         }
 728                         if (e->render.effects & EF_STARDUST)
 729                         {
 730                                 mins[0] = origin[0] - 16.0f;
 731                                 mins[1] = origin[1] - 16.0f;
 732                                 mins[2] = origin[2] - 16.0f;
 733                                 maxs[0] = origin[0] + 16.0f;
 734                                 maxs[1] = origin[1] + 16.0f;
 735                                 maxs[2] = origin[2] + 16.0f;
 736                                 // how many particles to make
 737                                 temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
 738                                 CL_Stardust(mins, maxs, temp);
 739                                 dlightradius = max(dlightradius, 200);
 740                                 dlightcolor[0] += 1.0f;
 741                                 dlightcolor[1] += 0.7f;
 742                                 dlightcolor[2] += 0.3f;
 743                         }
 744                 }
 745                 // muzzleflash fades over time, and is offset a bit
 746                 if (e->persistent.muzzleflash > 0)
 747                 {
 748                         Matrix4x4_Transform(&e->render.matrix, muzzleflashorigin, v2);
 749                         CL_TraceLine(origin, v2, v, NULL, true, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_SKY);
 750                         tempmatrix = e->render.matrix;
 751                         tempmatrix.m[0][3] = v[0];
 752                         tempmatrix.m[1][3] = v[1];
 753                         tempmatrix.m[2][3] = v[2];
 754                         CL_AllocDlight(NULL, &tempmatrix, 100, e->persistent.muzzleflash, e->persistent.muzzleflash, e->persistent.muzzleflash, 0, 0, 0, -1, true, 0, 0.25, 0.25, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
 755                         e->persistent.muzzleflash -= cl.frametime * 10;
 756                 }
 757                 // LordHavoc: if the model has no flags, don't check each
 758                 if (e->render.model && e->render.model->flags && (!e->state_current.tagentity && !(e->render.flags & RENDER_VIEWMODEL)))
 759                 {
 760                         if (e->render.model->flags & EF_GIB)
 761                                 trailtype = 2;
 762                         else if (e->render.model->flags & EF_ZOMGIB)
 763                                 trailtype = 4;
 764                         else if (e->render.model->flags & EF_TRACER)
 765                         {
 766                                 trailtype = 3;
 767                                 dlightradius = max(dlightradius, 100);
 768                                 dlightcolor[0] += 0.25f;
 769                                 dlightcolor[1] += 1.00f;
 770                                 dlightcolor[2] += 0.25f;
 771                         }
 772                         else if (e->render.model->flags & EF_TRACER2)
 773                         {
 774                                 trailtype = 5;
 775                                 dlightradius = max(dlightradius, 100);
 776                                 dlightcolor[0] += 1.00f;
 777                                 dlightcolor[1] += 0.60f;
 778                                 dlightcolor[2] += 0.20f;
 779                         }
 780                         else if (e->render.model->flags & EF_ROCKET)
 781                         {
 782                                 trailtype = 0;
 783                                 dlightradius = max(dlightradius, 200);
 784                                 dlightcolor[0] += 3.00f;
 785                                 dlightcolor[1] += 1.50f;
 786                                 dlightcolor[2] += 0.50f;
 787                         }
 788                         else if (e->render.model->flags & EF_GRENADE)
 789                         {
 790                                 // LordHavoc: e->render.alpha == -1 is for Nehahra dem compatibility (cigar smoke)
 791                                 trailtype = e->render.alpha == -1 ? 7 : 1;
 792                         }
 793                         else if (e->render.model->flags & EF_TRACER3)
 794                         {
 795                                 trailtype = 6;
 796                                 if (gamemode == GAME_PRYDON)
 797                                 {
 798                                         dlightradius = max(dlightradius, 100);
 799                                         dlightcolor[0] += 0.30f;
 800                                         dlightcolor[1] += 0.60f;
 801                                         dlightcolor[2] += 1.20f;
 802                                 }
 803                                 else
 804                                 {
 805                                         dlightradius = max(dlightradius, 200);
 806                                         dlightcolor[0] += 1.20f;
 807                                         dlightcolor[1] += 0.50f;
 808                                         dlightcolor[2] += 1.00f;
 809                                 }
 810                         }
 811                 }
 812                 // LordHavoc: customizable glow
 813                 if (e->state_current.glowsize)
 814                 {
 815                         // * 4 for the expansion from 0-255 to 0-1023 range,
 816                         // / 255 to scale down byte colors
 817                         dlightradius = max(dlightradius, e->state_current.glowsize * 4);
 818                         VectorMA(dlightcolor, (1.0f / 255.0f), (qbyte *)&palette_complete[e->state_current.glowcolor], dlightcolor);
 819                 }
 820                 // make the glow dlight
 821                 if (dlightradius > 0 && (dlightcolor[0] || dlightcolor[1] || dlightcolor[2]) && !(e->render.flags & RENDER_VIEWMODEL))
 822                 {
 823                         //dlightmatrix = e->render.matrix;
 824                         // hack to make glowing player light shine on their gun
 825                         //if ((e - cl_entities) == cl.viewentity/* && !chase_active.integer*/)
 826                         //      dlightmatrix.m[2][3] += 30;
 827                         CL_AllocDlight(&e->render, &e->render.matrix, dlightradius, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0, 0, -1, true, 1, 0.25, 0.25, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
 828                 }
 829                 // custom rtlight
 830                 if (e->state_current.lightpflags & PFLAGS_FULLDYNAMIC)
 831                 {
 832                         float light[4];
 833                         VectorScale(e->state_current.light, (1.0f / 256.0f), light);
 834                         light[3] = e->state_current.light[3];
 835                         if (light[0] == 0 && light[1] == 0 && light[2] == 0)
 836                                 VectorSet(light, 1, 1, 1);
 837                         if (light[3] == 0)
 838                                 light[3] = 350;
 839                         // FIXME: add ambient/diffuse/specular scales as an extension ontop of TENEBRAE_GFX_DLIGHTS?
 840                         CL_AllocDlight(&e->render, &e->render.matrix, light[3], light[0], light[1], light[2], 0, 0, e->state_current.skin, e->state_current.lightstyle, !(e->state_current.lightpflags & PFLAGS_NOSHADOW), (e->state_current.lightpflags & PFLAGS_CORONA) != 0, 0.25, 0, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
 841                 }
 842                 // do trails
 843                 if (e->render.flags & RENDER_GLOWTRAIL)
 844                         trailtype = 9;
 845                 if (trailtype >= 0)
 846                         CL_RocketTrail(e->persistent.trail_origin, origin, trailtype, e->state_current.glowcolor, e);
 847                 VectorCopy(origin, e->persistent.trail_origin);
 848                 // tenebrae's sprites are all additive mode (weird)
 849                 if (gamemode == GAME_TENEBRAE && e->render.model && e->render.model->type == mod_sprite)
 850                         e->render.effects |= EF_ADDITIVE;
 851                 // player model is only shown with chase_active on
 852                 if (e - cl_entities == cl.viewentity)
 853                         e->render.flags |= RENDER_EXTERIORMODEL;
 854                 // transparent stuff can't be lit during the opaque stage
 855                 if (e->render.effects & (EF_ADDITIVE | EF_NODEPTHTEST) || e->render.alpha < 1)
 856                         e->render.flags |= RENDER_TRANSPARENT;
 857                 // either fullbright or lit
 858                 if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 859                         e->render.flags |= RENDER_LIGHT;
 860                 // hide player shadow during intermission or nehahra movie
 861                 if (!(e->render.effects & EF_NOSHADOW)
 862                  && !(e->render.flags & (RENDER_VIEWMODEL | RENDER_TRANSPARENT))
 863                  && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cl.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
 864                         e->render.flags |= RENDER_SHADOW;
 865                 // as soon as player is known we can call V_CalcRefDef
 866                 if ((e - cl_entities) == cl.viewentity)
 867                         V_CalcRefdef();
 868                 if (e->render.model && e->render.model->name[0] == '*' && e->render.model->TraceBox)
 869                         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &e->render;
 870                 // don't show entities with no modelindex (note: this still shows
 871                 // entities which have a modelindex that resolved to a NULL model)
 872                 if (e->render.model && !(e->render.effects & EF_NODRAW) && r_refdef.numentities < r_refdef.maxentities)
 873                         r_refdef.entities[r_refdef.numentities++] = &e->render;
 874                 if (cl_num_entities < e->state_current.number + 1)
 875                         cl_num_entities = e->state_current.number + 1;
 876                 //if (cl.viewentity && e - cl_entities == cl.viewentity)
 877                 //      Matrix4x4_Print(&e->render.matrix);
 878         }
 879 }
 880
 881 void CL_RelinkWorld(void)
 882 {
 883         entity_t *ent = &cl_entities[0];
 884         if (cl_num_entities < 1)
 885                 cl_num_entities = 1;
 886         cl_brushmodel_entities[cl_num_brushmodel_entities++] = &ent->render;
 887         // FIXME: this should be done at load
 888         Matrix4x4_CreateIdentity(&ent->render.matrix);
 889         Matrix4x4_CreateIdentity(&ent->render.inversematrix);
 890         R_LerpAnimation(&ent->render);
 891         CL_BoundingBoxForEntity(&ent->render);
 892         ent->render.flags = RENDER_SHADOW;
 893         if (!r_fullbright.integer)
 894                 ent->render.flags |= RENDER_LIGHT;
 895         VectorSet(ent->render.colormod, 1, 1, 1);
 896         r_refdef.worldentity = &ent->render;
 897         r_refdef.worldmodel = cl.worldmodel;
 898 }
 899
 900 static void CL_RelinkStaticEntities(void)
 901 {
 902         int i;
 903         entity_t *e;
 904         for (i = 0, e = cl_static_entities;i < cl_num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++, e++)
 905         {
 906                 Mod_CheckLoaded(e->render.model);
 907                 e->render.flags = 0;
 908                 // transparent stuff can't be lit during the opaque stage
 909                 if (e->render.effects & (EF_ADDITIVE | EF_NODEPTHTEST) || e->render.alpha < 1)
 910                         e->render.flags |= RENDER_TRANSPARENT;
 911                 // either fullbright or lit
 912                 if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
 913                         e->render.flags |= RENDER_LIGHT;
 914                 // hide player shadow during intermission or nehahra movie
 915                 if (!(e->render.effects & EF_NOSHADOW) && !(e->render.flags & RENDER_TRANSPARENT))
 916                         e->render.flags |= RENDER_SHADOW;
 917                 VectorSet(e->render.colormod, 1, 1, 1);
 918                 R_LerpAnimation(&e->render);
 919                 r_refdef.entities[r_refdef.numentities++] = &e->render;
 920         }
 921 }
 922
 923 /*
 924 ===============
 925 CL_RelinkEntities
 926 ===============
 927 */
 928 static void CL_RelinkNetworkEntities(void)
 929 {
 930         entity_t *ent;
 931         int i;
 932
 933         ent = &cl.viewent;
 934         ent->state_previous = ent->state_current;
 935         ent->state_current = defaultstate;
 936         ent->state_current.time = cl.time;
 937         ent->state_current.number = -1;
 938         ent->state_current.active = true;
 939         ent->state_current.modelindex = cl.stats[STAT_WEAPON];
 940         ent->state_current.frame = cl.stats[STAT_WEAPONFRAME];
 941         ent->state_current.flags = RENDER_VIEWMODEL;
 942         if (cl.stats[STAT_HEALTH] <= 0 || cl.intermission)
 943                 ent->state_current.modelindex = 0;
 944         else if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
 945         {
 946                 if (gamemode == GAME_TRANSFUSION)
 947                         ent->state_current.alpha = 128;
 948                 else
 949                         ent->state_current.modelindex = 0;
 950         }
 951
 952         // reset animation interpolation on weaponmodel if model changed
 953         if (ent->state_previous.modelindex != ent->state_current.modelindex)
 954         {
 955                 ent->render.frame = ent->render.frame1 = ent->render.frame2 = ent->state_current.frame;
 956                 ent->render.frame1time = ent->render.frame2time = cl.time;
 957                 ent->render.framelerp = 1;
 958         }
 959
 960         // start on the entity after the world
 961         entitylinkframenumber++;
 962         for (i = 1;i < MAX_EDICTS;i++)
 963         {
 964                 if (cl_entities_active[i])
 965                 {
 966                         ent = cl_entities + i;
 967                         if (ent->state_current.active)
 968                                 CL_LinkNetworkEntity(ent);
 969                         else
 970                                 cl_entities_active[i] = false;
 971                 }
 972         }
 973         CL_LinkNetworkEntity(&cl.viewent);
 974 }
 975
 976 static void CL_RelinkEffects(void)
 977 {
 978         int i, intframe;
 979         cl_effect_t *e;
 980         entity_t *ent;
 981         float frame;
 982
 983         for (i = 0, e = cl_effects;i < cl_max_effects;i++, e++)
 984         {
 985                 if (e->active)
 986                 {
 987                         frame = (cl.time - e->starttime) * e->framerate + e->startframe;
 988                         intframe = frame;
 989                         if (intframe < 0 || intframe >= e->endframe)
 990                         {
 991                                 memset(e, 0, sizeof(*e));
 992                                 continue;
 993                         }
 994
 995                         if (intframe != e->frame)
 996                         {
 997                                 e->frame = intframe;
 998                                 e->frame1time = e->frame2time;
 999                                 e->frame2time = cl.time;
1000                         }
1001
1002                         // if we're drawing effects, get a new temp entity
1003                         // (NewTempEntity adds it to the render entities list for us)
1004                         if (r_draweffects.integer && (ent = CL_NewTempEntity()))
1005                         {
1006                                 // interpolation stuff
1007                                 ent->render.frame1 = intframe;
1008                                 ent->render.frame2 = intframe + 1;
1009                                 if (ent->render.frame2 >= e->endframe)
1010                                         ent->render.frame2 = -1; // disappear
1011                                 ent->render.framelerp = frame - intframe;
1012                                 ent->render.frame1time = e->frame1time;
1013                                 ent->render.frame2time = e->frame2time;
1014
1015                                 // normal stuff
1016                                 ent->render.model = cl.model_precache[e->modelindex];
1017                                 ent->render.frame = ent->render.frame2;
1018                                 ent->render.colormap = -1; // no special coloring
1019                                 ent->render.alpha = 1;
1020                                 VectorSet(ent->render.colormod, 1, 1, 1);
1021
1022                                 Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, e->origin[0], e->origin[1], e->origin[2], 0, 0, 0, 1);
1023                                 Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
1024                                 R_LerpAnimation(&ent->render);
1025                                 CL_BoundingBoxForEntity(&ent->render);
1026                         }
1027                 }
1028         }
1029 }
1030
1031 void CL_RelinkBeams(void)
1032 {
1033         int i;
1034         beam_t *b;
1035         vec3_t dist, org;
1036         float d;
1037         entity_t *ent;
1038         float yaw, pitch;
1039         float forward;
1040         matrix4x4_t tempmatrix;
1041
1042         for (i = 0, b = cl_beams;i < cl_max_beams;i++, b++)
1043         {
1044                 if (!b->model || b->endtime < cl.time)
1045                         continue;
1046
1047                 // if coming from the player, update the start position
1048                 //if (b->entity == cl.viewentity)
1049                 //      VectorCopy (cl_entities[cl.viewentity].render.origin, b->start);
1050                 if (cl_beams_relative.integer && b->entity == cl.viewentity && b->entity && cl_entities[b->entity].state_current.active && b->relativestartvalid)
1051                 {
1052                         entity_state_t *p = &cl_entities[b->entity].state_previous;
1053                         //entity_state_t *c = &cl_entities[b->entity].state_current;
1054                         entity_render_t *r = &cl_entities[b->entity].render;
1055                         matrix4x4_t matrix, imatrix;
1056                         if (b->relativestartvalid == 2)
1057                         {
1058                                 // not really valid yet, we need to get the orientation now
1059                                 // (ParseBeam flagged this because it is received before
1060                                 //  entities are received, by now they have been received)
1061                                 // note: because players create lightning in their think
1062                                 // function (which occurs before movement), they actually
1063                                 // have some lag in it's location, so compare to the
1064                                 // previous player state, not the latest
1065                                 if (b->entity == cl.viewentity)
1066                                         Matrix4x4_CreateFromQuakeEntity(&matrix, p->origin[0], p->origin[1], p->origin[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
1067                                 else
1068                                         Matrix4x4_CreateFromQuakeEntity(&matrix, p->origin[0], p->origin[1], p->origin[2] + 16, p->angles[0], p->angles[1], p->angles[2], 1);
1069                                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
1070                                 Matrix4x4_Transform(&imatrix, b->start, b->relativestart);
1071                                 Matrix4x4_Transform(&imatrix, b->end, b->relativeend);
1072                                 b->relativestartvalid = 1;
1073                         }
1074                         else
1075                         {
1076                                 if (b->entity == cl.viewentity)
1077                                         Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, cl.viewangles[0], cl.viewangles[1], cl.viewangles[2], 1);
1078                                 else
1079                                         Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, r->angles[0], r->angles[1], r->angles[2], 1);
1080                                 Matrix4x4_Transform(&matrix, b->relativestart, b->start);
1081                                 Matrix4x4_Transform(&matrix, b->relativeend, b->end);
1082                         }
1083                 }
1084
1085                 if (b->lightning)
1086                 {
1087                         if (cl_beams_lightatend.integer)
1088                         {
1089                                 // FIXME: create a matrix from the beam start/end orientation
1090                                 Matrix4x4_CreateTranslate(&tempmatrix, b->end[0], b->end[1], b->end[2]);
1091                                 CL_AllocDlight (NULL, &tempmatrix, 200, 0.3, 0.7, 1, 0, 0, 0, -1, true, 1, 0.25, 1, 0, 0, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
1092                         }
1093                         if (cl_beams_polygons.integer)
1094                                 continue;
1095                 }
1096
1097                 // calculate pitch and yaw
1098                 VectorSubtract (b->end, b->start, dist);
1099
1100                 if (dist[1] == 0 && dist[0] == 0)
1101                 {
1102                         yaw = 0;
1103                         if (dist[2] > 0)
1104                                 pitch = 90;
1105                         else
1106                                 pitch = 270;
1107                 }
1108                 else
1109                 {
1110                         yaw = (int) (atan2(dist[1], dist[0]) * 180 / M_PI);
1111                         if (yaw < 0)
1112                                 yaw += 360;
1113
1114                         forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
1115                         pitch = (int) (atan2(dist[2], forward) * 180 / M_PI);
1116                         if (pitch < 0)
1117                                 pitch += 360;
1118                 }
1119
1120                 // add new entities for the lightning
1121                 VectorCopy (b->start, org);
1122                 d = VectorNormalizeLength(dist);
1123                 while (d > 0)
1124                 {
1125                         ent = CL_NewTempEntity ();
1126                         if (!ent)
1127                                 return;
1128                         //VectorCopy (org, ent->render.origin);
1129                         ent->render.model = b->model;
1130                         //ent->render.effects = EF_FULLBRIGHT;
1131                         //ent->render.angles[0] = pitch;
1132                         //ent->render.angles[1] = yaw;
1133                         //ent->render.angles[2] = rand()%360;
1134                         Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, org[0], org[1], org[2], -pitch, yaw, lhrandom(0, 360), 1);
1135                         Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
1136                         R_LerpAnimation(&ent->render);
1137                         CL_BoundingBoxForEntity(&ent->render);
1138                         VectorMA(org, 30, dist, org);
1139                         d -= 30;
1140                 }
1141         }
1142 }
1143
1144 void CL_LerpPlayer(float frac)
1145 {
1146         int i;
1147         float d;
1148
1149         cl.viewzoom = cl.viewzoomold + frac * (cl.viewzoomnew - cl.viewzoomold);
1150
1151         for (i = 0;i < 3;i++)
1152                 cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
1153
1154         if (cls.demoplayback)
1155         {
1156                 // interpolate the angles
1157                 for (i = 0;i < 3;i++)
1158                 {
1159                         d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
1160                         if (d > 180)
1161                                 d -= 360;
1162                         else if (d < -180)
1163                                 d += 360;
1164                         cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
1165                 }
1166         }
1167 }
1168
1169 /*
1170 ===============
1171 CL_ReadFromServer
1172
1173 Read all incoming data from the server
1174 ===============
1175 */
1176 int CL_ReadFromServer(void)
1177 {
1178         CL_ReadDemoMessage();
1179
1180         r_refdef.time = cl.time;
1181         r_refdef.extraupdate = !r_speeds.integer;
1182         r_refdef.numentities = 0;
1183         cl_num_entities = 0;
1184         cl_num_brushmodel_entities = 0;
1185
1186         if (cls.state == ca_connected && cls.signon == SIGNONS)
1187         {
1188                 // prepare for a new frame
1189                 CL_LerpPlayer(CL_LerpPoint());
1190                 CL_DecayLights();
1191                 CL_ClearTempEntities();
1192                 V_DriftPitch();
1193                 V_FadeViewFlashs();
1194
1195                 // relink network entities (note: this sets up the view!)
1196                 CL_RelinkNetworkEntities();
1197
1198                 // move particles
1199                 CL_MoveParticles();
1200                 R_MoveExplosions();
1201
1202                 // link stuff
1203                 CL_RelinkWorld();
1204                 CL_RelinkStaticEntities();
1205                 CL_RelinkBeams();
1206                 CL_RelinkEffects();
1207
1208                 // run cgame code (which can add more entities)
1209                 CL_CGVM_Frame();
1210
1211                 // update view blend
1212                 V_CalcViewBlend();
1213         }
1214
1215         return 0;
1216 }
1217
1218 /*
1219 =================
1220 CL_SendCmd
1221 =================
1222 */
1223 void CL_SendCmd(void)
1224 {
1225         if (cls.signon == SIGNONS)
1226                 CL_SendMove();
1227
1228         if (cls.demoplayback)
1229         {
1230                 SZ_Clear(&cls.message);
1231                 return;
1232         }
1233
1234         // send the reliable message (forwarded commands) if there is one
1235         if (cls.message.cursize && NetConn_CanSendMessage(cls.netcon))
1236         {
1237                 if (developer.integer)
1238                 {
1239                         Con_Print("CL_SendCmd: sending reliable message:\n");
1240                         SZ_HexDumpToConsole(&cls.message);
1241                 }
1242                 if (NetConn_SendReliableMessage(cls.netcon, &cls.message) == -1)
1243                         Host_Error("CL_WriteToServer: lost server connection");
1244                 SZ_Clear(&cls.message);
1245         }
1246 }
1247
1248 // LordHavoc: pausedemo command
1249 static void CL_PauseDemo_f (void)
1250 {
1251         cls.demopaused = !cls.demopaused;
1252         if (cls.demopaused)
1253                 Con_Print("Demo paused\n");
1254         else
1255                 Con_Print("Demo unpaused\n");
1256 }
1257
1258 /*
1259 ======================
1260 CL_Fog_f
1261 ======================
1262 */
1263 static void CL_Fog_f (void)
1264 {
1265         if (Cmd_Argc () == 1)
1266         {
1267                 Con_Printf("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
1268                 return;
1269         }
1270         fog_density = atof(Cmd_Argv(1));
1271         fog_red = atof(Cmd_Argv(2));
1272         fog_green = atof(Cmd_Argv(3));
1273         fog_blue = atof(Cmd_Argv(4));
1274 }
1275
1276 /*
1277 ====================
1278 CL_TimeRefresh_f
1279
1280 For program optimization
1281 ====================
1282 */
1283 static void CL_TimeRefresh_f (void)
1284 {
1285         int i;
1286         float timestart, timedelta, oldangles[3];
1287
1288         r_refdef.extraupdate = false;
1289         VectorCopy(cl.viewangles, oldangles);
1290         VectorClear(cl.viewangles);
1291
1292         timestart = Sys_DoubleTime();
1293         for (i = 0;i < 128;i++)
1294         {
1295                 Matrix4x4_CreateFromQuakeEntity(&r_refdef.viewentitymatrix, r_vieworigin[0], r_vieworigin[1], r_vieworigin[2], 0, i / 128.0 * 360.0, 0, 1);
1296                 CL_UpdateScreen();
1297         }
1298         timedelta = Sys_DoubleTime() - timestart;
1299
1300         VectorCopy(oldangles, cl.viewangles);
1301         Con_Printf("%f seconds (%f fps)\n", timedelta, 128/timedelta);
1302 }
1303
1304 /*
1305 ===========
1306 CL_Shutdown
1307 ===========
1308 */
1309 void CL_Shutdown (void)
1310 {
1311         CL_CGVM_Shutdown();
1312         CL_Particles_Shutdown();
1313         CL_Parse_Shutdown();
1314
1315         SZ_Free (&cls.message);
1316
1317         Mem_FreePool (&cl_entities_mempool);
1318         Mem_FreePool (&cl_refdef_mempool);
1319 }
1320
1321 /*
1322 =================
1323 CL_Init
1324 =================
1325 */
1326 void CL_Init (void)
1327 {
1328         cl_entities_mempool = Mem_AllocPool("client entities", 0, NULL);
1329         cl_refdef_mempool = Mem_AllocPool("refdef", 0, NULL);
1330
1331         memset(&r_refdef, 0, sizeof(r_refdef));
1332         // max entities sent to renderer per frame
1333         r_refdef.maxentities = MAX_EDICTS + 256 + 512;
1334         r_refdef.entities = Mem_Alloc(cl_refdef_mempool, sizeof(entity_render_t *) * r_refdef.maxentities);
1335         // 256k drawqueue buffer
1336         r_refdef.maxdrawqueuesize = 256 * 1024;
1337         r_refdef.drawqueue = Mem_Alloc(cl_refdef_mempool, r_refdef.maxdrawqueuesize);
1338
1339         SZ_Alloc (&cls.message, 1024, "cls.message");
1340
1341         CL_InitInput ();
1342
1343 //
1344 // register our commands
1345 //
1346         Cvar_RegisterVariable (&cl_upspeed);
1347         Cvar_RegisterVariable (&cl_forwardspeed);
1348         Cvar_RegisterVariable (&cl_backspeed);
1349         Cvar_RegisterVariable (&cl_sidespeed);
1350         Cvar_RegisterVariable (&cl_movespeedkey);
1351         Cvar_RegisterVariable (&cl_yawspeed);
1352         Cvar_RegisterVariable (&cl_pitchspeed);
1353         Cvar_RegisterVariable (&cl_anglespeedkey);
1354         Cvar_RegisterVariable (&cl_shownet);
1355         Cvar_RegisterVariable (&cl_nolerp);
1356         Cvar_RegisterVariable (&lookspring);
1357         Cvar_RegisterVariable (&lookstrafe);
1358         Cvar_RegisterVariable (&sensitivity);
1359         Cvar_RegisterVariable (&freelook);
1360
1361         Cvar_RegisterVariable (&m_pitch);
1362         Cvar_RegisterVariable (&m_yaw);
1363         Cvar_RegisterVariable (&m_forward);
1364         Cvar_RegisterVariable (&m_side);
1365
1366         Cvar_RegisterVariable (&cl_itembobspeed);
1367         Cvar_RegisterVariable (&cl_itembobheight);
1368
1369         Cmd_AddCommand ("entities", CL_PrintEntities_f);
1370         Cmd_AddCommand ("disconnect", CL_Disconnect_f);
1371         Cmd_AddCommand ("record", CL_Record_f);
1372         Cmd_AddCommand ("stop", CL_Stop_f);
1373         Cmd_AddCommand ("playdemo", CL_PlayDemo_f);
1374         Cmd_AddCommand ("timedemo", CL_TimeDemo_f);
1375
1376         Cmd_AddCommand ("fog", CL_Fog_f);
1377
1378         // LordHavoc: added pausedemo
1379         Cmd_AddCommand ("pausedemo", CL_PauseDemo_f);
1380
1381         Cvar_RegisterVariable(&r_draweffects);
1382         Cvar_RegisterVariable(&cl_explosions_alpha_start);
1383         Cvar_RegisterVariable(&cl_explosions_alpha_end);
1384         Cvar_RegisterVariable(&cl_explosions_size_start);
1385         Cvar_RegisterVariable(&cl_explosions_size_end);
1386         Cvar_RegisterVariable(&cl_explosions_lifetime);
1387         Cvar_RegisterVariable(&cl_stainmaps);
1388         Cvar_RegisterVariable(&cl_stainmaps_clearonload);
1389         Cvar_RegisterVariable(&cl_beams_polygons);
1390         Cvar_RegisterVariable(&cl_beams_relative);
1391         Cvar_RegisterVariable(&cl_beams_lightatend);
1392         Cvar_RegisterVariable(&cl_noplayershadow);
1393
1394         Cvar_RegisterVariable(&cl_prydoncursor);
1395
1396         Cmd_AddCommand("timerefresh", CL_TimeRefresh_f);
1397
1398         CL_Parse_Init();
1399         CL_Particles_Init();
1400         CL_Screen_Init();
1401         CL_CGVM_Init();
1402
1403         CL_Video_Init();
1404 }
1405
1406
1407