sv_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 // sv_main.c -- server main program
  21
  22 #include "quakedef.h"
  23 #include "portals.h"
  24
  25 static cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "0"}; // fast but loose
  26 static cvar_t sv_cullentities_portal = {0, "sv_cullentities_portal", "0"}; // extremely accurate visibility checking, but too slow
  27 static cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "1"}; // tends to get false negatives, uses a timeout to keep entities visible a short time after becoming hidden
  28 static cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0"};
  29 static cvar_t sv_entpatch = {0, "sv_entpatch", "1"};
  30
  31 server_t                sv;
  32 server_static_t svs;
  33
  34 static char localmodels[MAX_MODELS][5];                 // inline model names for precache
  35
  36 mempool_t *sv_edicts_mempool = NULL;
  37
  38 //============================================================================
  39
  40 extern void SV_Phys_Init (void);
  41 extern void SV_World_Init (void);
  42
  43 /*
  44 ===============
  45 SV_Init
  46 ===============
  47 */
  48 void SV_Init (void)
  49 {
  50         int i;
  51
  52         Cvar_RegisterVariable (&sv_maxvelocity);
  53         Cvar_RegisterVariable (&sv_gravity);
  54         Cvar_RegisterVariable (&sv_friction);
  55         Cvar_RegisterVariable (&sv_edgefriction);
  56         Cvar_RegisterVariable (&sv_stopspeed);
  57         Cvar_RegisterVariable (&sv_maxspeed);
  58         Cvar_RegisterVariable (&sv_accelerate);
  59         Cvar_RegisterVariable (&sv_idealpitchscale);
  60         Cvar_RegisterVariable (&sv_aim);
  61         Cvar_RegisterVariable (&sv_nostep);
  62         Cvar_RegisterVariable (&sv_predict);
  63         Cvar_RegisterVariable (&sv_deltacompress);
  64         Cvar_RegisterVariable (&sv_cullentities_pvs);
  65         Cvar_RegisterVariable (&sv_cullentities_portal);
  66         Cvar_RegisterVariable (&sv_cullentities_trace);
  67         Cvar_RegisterVariable (&sv_cullentities_stats);
  68         Cvar_RegisterVariable (&sv_entpatch);
  69
  70         SV_Phys_Init();
  71         SV_World_Init();
  72
  73         for (i = 0;i < MAX_MODELS;i++)
  74                 sprintf (localmodels[i], "*%i", i);
  75
  76         sv_edicts_mempool = Mem_AllocPool("edicts");
  77 }
  78
  79 /*
  80 =============================================================================
  81
  82 EVENT MESSAGES
  83
  84 =============================================================================
  85 */
  86
  87 /*
  88 ==================
  89 SV_StartParticle
  90
  91 Make sure the event gets sent to all clients
  92 ==================
  93 */
  94 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
  95 {
  96         int             i, v;
  97
  98         if (sv.datagram.cursize > MAX_DATAGRAM-16)
  99                 return;
 100         MSG_WriteByte (&sv.datagram, svc_particle);
 101         MSG_WriteDPCoord (&sv.datagram, org[0]);
 102         MSG_WriteDPCoord (&sv.datagram, org[1]);
 103         MSG_WriteDPCoord (&sv.datagram, org[2]);
 104         for (i=0 ; i<3 ; i++)
 105         {
 106                 v = dir[i]*16;
 107                 if (v > 127)
 108                         v = 127;
 109                 else if (v < -128)
 110                         v = -128;
 111                 MSG_WriteChar (&sv.datagram, v);
 112         }
 113         MSG_WriteByte (&sv.datagram, count);
 114         MSG_WriteByte (&sv.datagram, color);
 115 }
 116
 117 /*
 118 ==================
 119 SV_StartEffect
 120
 121 Make sure the event gets sent to all clients
 122 ==================
 123 */
 124 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 125 {
 126         if (sv.datagram.cursize > MAX_DATAGRAM-18)
 127                 return;
 128         if (modelindex >= 256 || startframe >= 256)
 129         {
 130                 MSG_WriteByte (&sv.datagram, svc_effect2);
 131                 MSG_WriteDPCoord (&sv.datagram, org[0]);
 132                 MSG_WriteDPCoord (&sv.datagram, org[1]);
 133                 MSG_WriteDPCoord (&sv.datagram, org[2]);
 134                 MSG_WriteShort (&sv.datagram, modelindex);
 135                 MSG_WriteShort (&sv.datagram, startframe);
 136                 MSG_WriteByte (&sv.datagram, framecount);
 137                 MSG_WriteByte (&sv.datagram, framerate);
 138         }
 139         else
 140         {
 141                 MSG_WriteByte (&sv.datagram, svc_effect);
 142                 MSG_WriteDPCoord (&sv.datagram, org[0]);
 143                 MSG_WriteDPCoord (&sv.datagram, org[1]);
 144                 MSG_WriteDPCoord (&sv.datagram, org[2]);
 145                 MSG_WriteByte (&sv.datagram, modelindex);
 146                 MSG_WriteByte (&sv.datagram, startframe);
 147                 MSG_WriteByte (&sv.datagram, framecount);
 148                 MSG_WriteByte (&sv.datagram, framerate);
 149         }
 150 }
 151
 152 /*
 153 ==================
 154 SV_StartSound
 155
 156 Each entity can have eight independant sound sources, like voice,
 157 weapon, feet, etc.
 158
 159 Channel 0 is an auto-allocate channel, the others override anything
 160 already running on that entity/channel pair.
 161
 162 An attenuation of 0 will play full volume everywhere in the level.
 163 Larger attenuations will drop off.  (max 4 attenuation)
 164
 165 ==================
 166 */
 167 void SV_StartSound (edict_t *entity, int channel, char *sample, int volume,
 168     float attenuation)
 169 {
 170     int         sound_num;
 171     int field_mask;
 172     int                 i;
 173         int                     ent;
 174
 175         if (volume < 0 || volume > 255)
 176                 Host_Error ("SV_StartSound: volume = %i", volume);
 177
 178         if (attenuation < 0 || attenuation > 4)
 179                 Host_Error ("SV_StartSound: attenuation = %f", attenuation);
 180
 181         if (channel < 0 || channel > 7)
 182                 Host_Error ("SV_StartSound: channel = %i", channel);
 183
 184         if (sv.datagram.cursize > MAX_DATAGRAM-16)
 185                 return;
 186
 187 // find precache number for sound
 188     for (sound_num=1 ; sound_num<MAX_SOUNDS
 189         && sv.sound_precache[sound_num] ; sound_num++)
 190         if (!strcmp(sample, sv.sound_precache[sound_num]))
 191             break;
 192
 193     if ( sound_num == MAX_SOUNDS || !sv.sound_precache[sound_num] )
 194     {
 195         Con_Printf ("SV_StartSound: %s not precached\n", sample);
 196         return;
 197     }
 198
 199         ent = NUM_FOR_EDICT(entity);
 200
 201         field_mask = 0;
 202         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 203                 field_mask |= SND_VOLUME;
 204         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 205                 field_mask |= SND_ATTENUATION;
 206         if (ent >= 8192)
 207                 field_mask |= SND_LARGEENTITY;
 208         if (sound_num >= 256 || channel >= 8)
 209                 field_mask |= SND_LARGESOUND;
 210
 211 // directed messages go only to the entity they are targeted on
 212         MSG_WriteByte (&sv.datagram, svc_sound);
 213         MSG_WriteByte (&sv.datagram, field_mask);
 214         if (field_mask & SND_VOLUME)
 215                 MSG_WriteByte (&sv.datagram, volume);
 216         if (field_mask & SND_ATTENUATION)
 217                 MSG_WriteByte (&sv.datagram, attenuation*64);
 218         if (field_mask & SND_LARGEENTITY)
 219         {
 220                 MSG_WriteShort (&sv.datagram, ent);
 221                 MSG_WriteByte (&sv.datagram, channel);
 222         }
 223         else
 224                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 225         if (field_mask & SND_LARGESOUND)
 226                 MSG_WriteShort (&sv.datagram, sound_num);
 227         else
 228                 MSG_WriteByte (&sv.datagram, sound_num);
 229         for (i = 0;i < 3;i++)
 230                 MSG_WriteDPCoord (&sv.datagram, entity->v->origin[i]+0.5*(entity->v->mins[i]+entity->v->maxs[i]));
 231 }
 232
 233 /*
 234 ==============================================================================
 235
 236 CLIENT SPAWNING
 237
 238 ==============================================================================
 239 */
 240
 241 /*
 242 ================
 243 SV_SendServerinfo
 244
 245 Sends the first message from the server to a connected client.
 246 This will be sent on the initial connection and upon each server load.
 247 ================
 248 */
 249 void SV_SendServerinfo (client_t *client)
 250 {
 251         char                    **s;
 252         char                    message[2048];
 253
 254         // LordHavoc: clear entityframe tracking
 255         client->entityframenumber = 0;
 256         EntityFrame_ClearDatabase(&client->entitydatabase);
 257
 258         MSG_WriteByte (&client->message, svc_print);
 259         sprintf (message, "\002\nServer: %s build %s (progs %i crc)", gamename, buildstring, pr_crc);
 260         MSG_WriteString (&client->message,message);
 261
 262         MSG_WriteByte (&client->message, svc_serverinfo);
 263         MSG_WriteLong (&client->message, DPPROTOCOL_VERSION3);
 264         MSG_WriteByte (&client->message, svs.maxclients);
 265
 266         if (!coop.integer && deathmatch.integer)
 267                 MSG_WriteByte (&client->message, GAME_DEATHMATCH);
 268         else
 269                 MSG_WriteByte (&client->message, GAME_COOP);
 270
 271         sprintf (message, PR_GetString(sv.edicts->v->message));
 272
 273         MSG_WriteString (&client->message,message);
 274
 275         for (s = sv.model_precache+1 ; *s ; s++)
 276                 MSG_WriteString (&client->message, *s);
 277         MSG_WriteByte (&client->message, 0);
 278
 279         for (s = sv.sound_precache+1 ; *s ; s++)
 280                 MSG_WriteString (&client->message, *s);
 281         MSG_WriteByte (&client->message, 0);
 282
 283 // send music
 284         MSG_WriteByte (&client->message, svc_cdtrack);
 285         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 286         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 287
 288 // set view
 289         MSG_WriteByte (&client->message, svc_setview);
 290         MSG_WriteShort (&client->message, NUM_FOR_EDICT(client->edict));
 291
 292         MSG_WriteByte (&client->message, svc_signonnum);
 293         MSG_WriteByte (&client->message, 1);
 294
 295         client->sendsignon = true;
 296         client->spawned = false;                // need prespawn, spawn, etc
 297 }
 298
 299 /*
 300 ================
 301 SV_ConnectClient
 302
 303 Initializes a client_t for a new net connection.  This will only be called
 304 once for a player each game, not once for each level change.
 305 ================
 306 */
 307 void SV_ConnectClient (int clientnum)
 308 {
 309         client_t                *client;
 310         struct qsocket_s *netconnection;
 311         int                             i;
 312         float                   spawn_parms[NUM_SPAWN_PARMS];
 313
 314         client = svs.clients + clientnum;
 315
 316         Con_DPrintf ("Client %s connected\n", client->netconnection->address);
 317
 318 // set up the client_t
 319         netconnection = client->netconnection;
 320
 321         if (sv.loadgame)
 322                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 323         memset (client, 0, sizeof(*client));
 324         client->netconnection = netconnection;
 325
 326         strcpy (client->name, "unconnected");
 327         client->active = true;
 328         client->spawned = false;
 329         client->edict = EDICT_NUM(clientnum+1);
 330         client->message.data = client->msgbuf;
 331         client->message.maxsize = sizeof(client->msgbuf);
 332         client->message.allowoverflow = true;           // we can catch it
 333
 334         if (sv.loadgame)
 335                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 336         else
 337         {
 338         // call the progs to get default spawn parms for the new client
 339                 PR_ExecuteProgram (pr_global_struct->SetNewParms, "QC function SetNewParms is missing");
 340                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 341                         client->spawn_parms[i] = (&pr_global_struct->parm1)[i];
 342         }
 343
 344 #if NOROUTINGFIX
 345         SV_SendServerinfo (client);
 346 #else
 347         // send serverinfo on first nop
 348         client->waitingforconnect = true;
 349         client->sendsignon = true;
 350         client->spawned = false;                // need prespawn, spawn, etc
 351 #endif
 352 }
 353
 354
 355 /*
 356 ===================
 357 SV_CheckForNewClients
 358
 359 ===================
 360 */
 361 void SV_CheckForNewClients (void)
 362 {
 363         struct qsocket_s        *ret;
 364         int                             i;
 365
 366 //
 367 // check for new connections
 368 //
 369         while (1)
 370         {
 371                 ret = NET_CheckNewConnections ();
 372                 if (!ret)
 373                         break;
 374
 375         //
 376         // init a new client structure
 377         //
 378                 for (i=0 ; i<svs.maxclients ; i++)
 379                         if (!svs.clients[i].active)
 380                                 break;
 381                 if (i == svs.maxclients)
 382                         Sys_Error ("Host_CheckForNewClients: no free clients");
 383
 384                 svs.clients[i].netconnection = ret;
 385                 SV_ConnectClient (i);
 386
 387                 net_activeconnections++;
 388                 NET_Heartbeat (1);
 389         }
 390 }
 391
 392
 393
 394 /*
 395 ===============================================================================
 396
 397 FRAME UPDATES
 398
 399 ===============================================================================
 400 */
 401
 402 /*
 403 ==================
 404 SV_ClearDatagram
 405
 406 ==================
 407 */
 408 void SV_ClearDatagram (void)
 409 {
 410         SZ_Clear (&sv.datagram);
 411 }
 412
 413 /*
 414 =============================================================================
 415
 416 The PVS must include a small area around the client to allow head bobbing
 417 or other small motion on the client side.  Otherwise, a bob might cause an
 418 entity that should be visible to not show up, especially when the bob
 419 crosses a waterline.
 420
 421 =============================================================================
 422 */
 423
 424 int             fatbytes;
 425 qbyte   fatpvs[MAX_MAP_LEAFS/8];
 426
 427 void SV_AddToFatPVS (vec3_t org, mnode_t *node)
 428 {
 429         int             i;
 430         qbyte   *pvs;
 431         mplane_t        *plane;
 432         float   d;
 433
 434         while (1)
 435         {
 436         // if this is a leaf, accumulate the pvs bits
 437                 if (node->contents < 0)
 438                 {
 439                         if (node->contents != CONTENTS_SOLID)
 440                         {
 441                                 pvs = Mod_LeafPVS ( (mleaf_t *)node, sv.worldmodel);
 442                                 for (i=0 ; i<fatbytes ; i++)
 443                                         fatpvs[i] |= pvs[i];
 444                         }
 445                         return;
 446                 }
 447
 448                 plane = node->plane;
 449                 d = DotProduct (org, plane->normal) - plane->dist;
 450                 if (d > 8)
 451                         node = node->children[0];
 452                 else if (d < -8)
 453                         node = node->children[1];
 454                 else
 455                 {       // go down both
 456                         SV_AddToFatPVS (org, node->children[0]);
 457                         node = node->children[1];
 458                 }
 459         }
 460 }
 461
 462 /*
 463 =============
 464 SV_FatPVS
 465
 466 Calculates a PVS that is the inclusive or of all leafs within 8 pixels of the
 467 given point.
 468 =============
 469 */
 470 qbyte *SV_FatPVS (vec3_t org)
 471 {
 472         fatbytes = (sv.worldmodel->numleafs+31)>>3;
 473         memset (fatpvs, 0, fatbytes);
 474         SV_AddToFatPVS (org, sv.worldmodel->nodes);
 475         return fatpvs;
 476 }
 477
 478 //=============================================================================
 479
 480
 481 int SV_BoxTouchingPVS (qbyte *pvs, vec3_t mins, vec3_t maxs, mnode_t *node)
 482 {
 483         int leafnum;
 484 loc0:
 485         if (node->contents < 0)
 486         {
 487                 // leaf
 488                 if (node->contents == CONTENTS_SOLID)
 489                         return false;
 490                 leafnum = (mleaf_t *)node - sv.worldmodel->leafs - 1;
 491                 return pvs[leafnum >> 3] & (1 << (leafnum & 7));
 492         }
 493
 494         // node - recurse down the BSP tree
 495         switch (BoxOnPlaneSide(mins, maxs, node->plane))
 496         {
 497         case 1: // front
 498                 node = node->children[0];
 499                 goto loc0;
 500         case 2: // back
 501                 node = node->children[1];
 502                 goto loc0;
 503         default: // crossing
 504                 if (node->children[0]->contents != CONTENTS_SOLID)
 505                         if (SV_BoxTouchingPVS (pvs, mins, maxs, node->children[0]))
 506                                 return true;
 507                 node = node->children[1];
 508                 goto loc0;
 509         }
 510         // never reached
 511         return false;
 512 }
 513
 514
 515 /*
 516 =============
 517 SV_WriteEntitiesToClient
 518
 519 =============
 520 */
 521 #ifdef QUAKEENTITIES
 522 void SV_WriteEntitiesToClient (client_t *client, edict_t *clent, sizebuf_t *msg)
 523 {
 524         int e, clentnum, bits, alpha, glowcolor, glowsize, scale, effects, lightsize;
 525         int culled_pvs, culled_portal, culled_trace, visibleentities, totalentities;
 526         qbyte *pvs;
 527         vec3_t origin, angles, entmins, entmaxs, testorigin, testeye;
 528         float nextfullupdate, alphaf;
 529         edict_t *ent;
 530         eval_t *val;
 531         entity_state_t *baseline; // LordHavoc: delta or startup baseline
 532         trace_t trace;
 533         model_t *model;
 534
 535         Mod_CheckLoaded(sv.worldmodel);
 536
 537 // find the client's PVS
 538         VectorAdd (clent->v->origin, clent->v->view_ofs, testeye);
 539         pvs = SV_FatPVS (testeye);
 540
 541         culled_pvs = 0;
 542         culled_portal = 0;
 543         culled_trace = 0;
 544         visibleentities = 0;
 545         totalentities = 0;
 546
 547         clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
 548         // send all entities that touch the pvs
 549         ent = NEXT_EDICT(sv.edicts);
 550         for (e = 1;e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 551         {
 552                 bits = 0;
 553
 554                 // prevent delta compression against this frame (unless actually sent, which will restore this later)
 555                 nextfullupdate = client->nextfullupdate[e];
 556                 client->nextfullupdate[e] = -1;
 557
 558                 if (ent != clent) // LordHavoc: always send player
 559                 {
 560                         if ((val = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)) && val->edict)
 561                         {
 562                                 if (val->edict != clentnum)
 563                                 {
 564                                         // don't show to anyone else
 565                                         continue;
 566                                 }
 567                                 else
 568                                         bits |= U_VIEWMODEL; // show relative to the view
 569                         }
 570                         else
 571                         {
 572                                 // LordHavoc: never draw something told not to display to this client
 573                                 if ((val = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)) && val->edict == clentnum)
 574                                         continue;
 575                                 if ((val = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)) && val->edict && val->edict != clentnum)
 576                                         continue;
 577                         }
 578                 }
 579
 580                 glowsize = 0;
 581
 582                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_size)))
 583                         glowsize = (int) val->_float >> 2;
 584                 if (glowsize > 255) glowsize = 255;
 585                 if (glowsize < 0) glowsize = 0;
 586
 587                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_trail)))
 588                 if (val->_float != 0)
 589                         bits |= U_GLOWTRAIL;
 590
 591                 if (ent->v->modelindex >= 0 && ent->v->modelindex < MAX_MODELS && *PR_GetString(ent->v->model))
 592                 {
 593                         model = sv.models[(int)ent->v->modelindex];
 594                         Mod_CheckLoaded(model);
 595                 }
 596                 else
 597                 {
 598                         model = NULL;
 599                         if (ent != clent) // LordHavoc: always send player
 600                                 if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 601                                         continue;
 602                 }
 603
 604                 VectorCopy(ent->v->angles, angles);
 605                 if (DotProduct(ent->v->velocity, ent->v->velocity) >= 1.0f)
 606                 {
 607                         VectorMA(ent->v->origin, host_client->latency, ent->v->velocity, origin);
 608                         // LordHavoc: trace predicted movement to avoid putting things in walls
 609                         trace = SV_Move (ent->v->origin, ent->v->mins, ent->v->maxs, origin, MOVE_NORMAL, ent);
 610                         VectorCopy(trace.endpos, origin);
 611                 }
 612                 else
 613                 {
 614                         VectorCopy(ent->v->origin, origin);
 615                 }
 616
 617                 // ent has survived every check so far, check if it is visible
 618                 if (ent != clent && ((bits & U_VIEWMODEL) == 0))
 619                 {
 620                         // use the predicted origin
 621                         entmins[0] = origin[0] - 1.0f;
 622                         entmins[1] = origin[1] - 1.0f;
 623                         entmins[2] = origin[2] - 1.0f;
 624                         entmaxs[0] = origin[0] + 1.0f;
 625                         entmaxs[1] = origin[1] + 1.0f;
 626                         entmaxs[2] = origin[2] + 1.0f;
 627                         // using the model's bounding box to ensure things are visible regardless of their physics box
 628                         if (model)
 629                         {
 630                                 if (ent->v->angles[0] || ent->v->angles[2]) // pitch and roll
 631                                 {
 632                                         VectorAdd(entmins, model->rotatedmins, entmins);
 633                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
 634                                 }
 635                                 else if (ent->v->angles[1])
 636                                 {
 637                                         VectorAdd(entmins, model->yawmins, entmins);
 638                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
 639                                 }
 640                                 else
 641                                 {
 642                                         VectorAdd(entmins, model->normalmins, entmins);
 643                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
 644                                 }
 645                         }
 646
 647                         totalentities++;
 648
 649                         // if not touching a visible leaf
 650                         if (sv_cullentities_pvs.integer && !SV_BoxTouchingPVS(pvs, entmins, entmaxs, sv.worldmodel->nodes))
 651                         {
 652                                 culled_pvs++;
 653                                 continue;
 654                         }
 655
 656                         // or not visible through the portals
 657                         if (sv_cullentities_portal.integer && !Portal_CheckBox(sv.worldmodel, testeye, entmins, entmaxs))
 658                         {
 659                                 culled_portal++;
 660                                 continue;
 661                         }
 662
 663                         // don't try to cull embedded brush models with this, they're sometimes huge (spanning several rooms)
 664                         if (sv_cullentities_trace.integer && (model == NULL || model->type != mod_brush || model->name[0] != '*'))
 665                         {
 666                                 // LordHavoc: test random offsets, to maximize chance of detection
 667                                 testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
 668                                 testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
 669                                 testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
 670
 671                                 Collision_ClipTrace(&trace, NULL, sv.worldmodel, vec3_origin, vec3_origin, vec3_origin, testeye, vec3_origin, vec3_origin, testorigin);
 672
 673                                 if (trace.fraction == 1)
 674                                         client->visibletime[e] = realtime + 1;
 675                                 else
 676                                 {
 677                                         //test nearest point on bbox
 678                                         testorigin[0] = bound(entmins[0], testeye[0], entmaxs[0]);
 679                                         testorigin[1] = bound(entmins[1], testeye[1], entmaxs[1]);
 680                                         testorigin[2] = bound(entmins[2], testeye[2], entmaxs[2]);
 681
 682                                         Collision_ClipTrace(&trace, NULL, sv.worldmodel, vec3_origin, vec3_origin, vec3_origin, testeye, vec3_origin, vec3_origin, testorigin);
 683
 684                                         if (trace.fraction == 1)
 685                                                 client->visibletime[e] = realtime + 1;
 686                                         else if (realtime > client->visibletime[e])
 687                                         {
 688                                                 culled_trace++;
 689                                                 continue;
 690                                         }
 691                                 }
 692                         }
 693                         visibleentities++;
 694                 }
 695
 696                 alphaf = 255.0f;
 697                 scale = 16;
 698                 glowcolor = 254;
 699                 effects = ent->v->effects;
 700
 701                 if ((val = GETEDICTFIELDVALUE(ent, eval_alpha)))
 702                 if (val->_float != 0)
 703                         alphaf = val->_float * 255.0f;
 704
 705                 // HalfLife support
 706                 if ((val = GETEDICTFIELDVALUE(ent, eval_renderamt)))
 707                 if (val->_float != 0)
 708                         alphaf = val->_float;
 709
 710                 if (alphaf == 0.0f)
 711                         alphaf = 255.0f;
 712                 alpha = bound(0, alphaf, 255);
 713
 714                 if ((val = GETEDICTFIELDVALUE(ent, eval_scale)))
 715                 if ((scale = (int) (val->_float * 16.0)) == 0) scale = 16;
 716                 if (scale < 0) scale = 0;
 717                 if (scale > 255) scale = 255;
 718
 719                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_color)))
 720                 if (val->_float != 0)
 721                         glowcolor = (int) val->_float;
 722
 723                 if ((val = GETEDICTFIELDVALUE(ent, eval_fullbright)))
 724                 if (val->_float != 0)
 725                         effects |= EF_FULLBRIGHT;
 726
 727                 if (ent != clent)
 728                 {
 729                         if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 730                         {
 731                                 if (model) // model
 732                                 {
 733                                         // don't send if flagged for NODRAW and there are no effects
 734                                         if (model->flags == 0 && ((effects & EF_NODRAW) || scale <= 0 || alpha <= 0))
 735                                                 continue;
 736                                 }
 737                                 else // no model and no effects
 738                                         continue;
 739                         }
 740                 }
 741
 742                 if (msg->maxsize - msg->cursize < 32) // LordHavoc: increased check from 16 to 32
 743                 {
 744                         Con_Printf ("packet overflow\n");
 745                         // mark the rest of the entities so they can't be delta compressed against this frame
 746                         for (;e < sv.num_edicts;e++)
 747                         {
 748                                 client->nextfullupdate[e] = -1;
 749                                 client->visibletime[e] = -1;
 750                         }
 751                         return;
 752                 }
 753
 754                 if ((val = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)) && val->edict == clentnum)
 755                         bits = bits | U_EXTERIORMODEL;
 756
 757 // send an update
 758                 baseline = &ent->e->baseline;
 759
 760                 if (((int)ent->v->effects & EF_DELTA) && sv_deltacompress.integer)
 761                 {
 762                         // every half second a full update is forced
 763                         if (realtime < client->nextfullupdate[e])
 764                         {
 765                                 bits |= U_DELTA;
 766                                 baseline = &ent->e->deltabaseline;
 767                         }
 768                         else
 769                                 nextfullupdate = realtime + 0.5f;
 770                 }
 771                 else
 772                         nextfullupdate = realtime + 0.5f;
 773
 774                 // restore nextfullupdate since this is being sent for real
 775                 client->nextfullupdate[e] = nextfullupdate;
 776
 777                 if (e >= 256)
 778                         bits |= U_LONGENTITY;
 779
 780                 if (ent->v->movetype == MOVETYPE_STEP)
 781                         bits |= U_STEP;
 782
 783                 // LordHavoc: old stuff, but rewritten to have more exact tolerances
 784                 if (origin[0] != baseline->origin[0])                                                                                   bits |= U_ORIGIN1;
 785                 if (origin[1] != baseline->origin[1])                                                                                   bits |= U_ORIGIN2;
 786                 if (origin[2] != baseline->origin[2])                                                                                   bits |= U_ORIGIN3;
 787                 if (((int)(angles[0]*(256.0/360.0)) & 255) != ((int)(baseline->angles[0]*(256.0/360.0)) & 255)) bits |= U_ANGLE1;
 788                 if (((int)(angles[1]*(256.0/360.0)) & 255) != ((int)(baseline->angles[1]*(256.0/360.0)) & 255)) bits |= U_ANGLE2;
 789                 if (((int)(angles[2]*(256.0/360.0)) & 255) != ((int)(baseline->angles[2]*(256.0/360.0)) & 255)) bits |= U_ANGLE3;
 790                 if (baseline->colormap != (qbyte) ent->v->colormap)                                                             bits |= U_COLORMAP;
 791                 if (baseline->skin != (qbyte) ent->v->skin)                                                                             bits |= U_SKIN;
 792                 if ((baseline->frame & 0x00FF) != ((int) ent->v->frame & 0x00FF))                               bits |= U_FRAME;
 793                 if ((baseline->effects & 0x00FF) != ((int) ent->v->effects & 0x00FF))                   bits |= U_EFFECTS;
 794                 if ((baseline->modelindex & 0x00FF) != ((int) ent->v->modelindex & 0x00FF))             bits |= U_MODEL;
 795
 796                 // LordHavoc: new stuff
 797                 if (baseline->alpha != alpha)                                                                                                   bits |= U_ALPHA;
 798                 if (baseline->scale != scale)                                                                                                   bits |= U_SCALE;
 799                 if (((int) baseline->effects & 0xFF00) != ((int) ent->v->effects & 0xFF00))             bits |= U_EFFECTS2;
 800                 if (baseline->glowsize != glowsize)                                                                                             bits |= U_GLOWSIZE;
 801                 if (baseline->glowcolor != glowcolor)                                                                                   bits |= U_GLOWCOLOR;
 802                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->frame & 0xFF00))                 bits |= U_FRAME2;
 803                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->modelindex & 0xFF00))            bits |= U_MODEL2;
 804
 805                 // update delta baseline
 806                 VectorCopy(ent->v->origin, ent->e->deltabaseline.origin);
 807                 VectorCopy(ent->v->angles, ent->e->deltabaseline.angles);
 808                 ent->e->deltabaseline.colormap = ent->v->colormap;
 809                 ent->e->deltabaseline.skin = ent->v->skin;
 810                 ent->e->deltabaseline.frame = ent->v->frame;
 811                 ent->e->deltabaseline.effects = ent->v->effects;
 812                 ent->e->deltabaseline.modelindex = ent->v->modelindex;
 813                 ent->e->deltabaseline.alpha = alpha;
 814                 ent->e->deltabaseline.scale = scale;
 815                 ent->e->deltabaseline.glowsize = glowsize;
 816                 ent->e->deltabaseline.glowcolor = glowcolor;
 817
 818                 // write the message
 819                 if (bits >= 16777216)
 820                         bits |= U_EXTEND2;
 821                 if (bits >= 65536)
 822                         bits |= U_EXTEND1;
 823                 if (bits >= 256)
 824                         bits |= U_MOREBITS;
 825                 bits |= U_SIGNAL;
 826
 827                 MSG_WriteByte (msg, bits);
 828                 if (bits & U_MOREBITS)
 829                         MSG_WriteByte (msg, bits>>8);
 830                 // LordHavoc: extend bytes have to be written here due to delta compression
 831                 if (bits & U_EXTEND1)
 832                         MSG_WriteByte (msg, bits>>16);
 833                 if (bits & U_EXTEND2)
 834                         MSG_WriteByte (msg, bits>>24);
 835
 836                 // LordHavoc: old stuff
 837                 if (bits & U_LONGENTITY)
 838                         MSG_WriteShort (msg,e);
 839                 else
 840                         MSG_WriteByte (msg,e);
 841                 if (bits & U_MODEL)             MSG_WriteByte (msg,     ent->v->modelindex);
 842                 if (bits & U_FRAME)             MSG_WriteByte (msg, ent->v->frame);
 843                 if (bits & U_COLORMAP)  MSG_WriteByte (msg, ent->v->colormap);
 844                 if (bits & U_SKIN)              MSG_WriteByte (msg, ent->v->skin);
 845                 if (bits & U_EFFECTS)   MSG_WriteByte (msg, ent->v->effects);
 846                 if (bits & U_ORIGIN1)   MSG_WriteDPCoord (msg, origin[0]);
 847                 if (bits & U_ANGLE1)    MSG_WriteAngle(msg, angles[0]);
 848                 if (bits & U_ORIGIN2)   MSG_WriteDPCoord (msg, origin[1]);
 849                 if (bits & U_ANGLE2)    MSG_WriteAngle(msg, angles[1]);
 850                 if (bits & U_ORIGIN3)   MSG_WriteDPCoord (msg, origin[2]);
 851                 if (bits & U_ANGLE3)    MSG_WriteAngle(msg, angles[2]);
 852
 853                 // LordHavoc: new stuff
 854                 if (bits & U_ALPHA)             MSG_WriteByte(msg, alpha);
 855                 if (bits & U_SCALE)             MSG_WriteByte(msg, scale);
 856                 if (bits & U_EFFECTS2)  MSG_WriteByte(msg, (int)ent->v->effects >> 8);
 857                 if (bits & U_GLOWSIZE)  MSG_WriteByte(msg, glowsize);
 858                 if (bits & U_GLOWCOLOR) MSG_WriteByte(msg, glowcolor);
 859                 if (bits & U_FRAME2)    MSG_WriteByte(msg, (int)ent->v->frame >> 8);
 860                 if (bits & U_MODEL2)    MSG_WriteByte(msg, (int)ent->v->modelindex >> 8);
 861         }
 862
 863         if (sv_cullentities_stats.integer)
 864                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d portal %d trace\n", client->name, totalentities, visibleentities, culled_pvs + culled_portal + culled_trace, culled_pvs, culled_portal, culled_trace);
 865 }
 866 #else
 867 static entity_frame_t sv_writeentitiestoclient_entityframe;
 868 void SV_WriteEntitiesToClient (client_t *client, edict_t *clent, sizebuf_t *msg)
 869 {
 870         int e, clentnum, flags, alpha, glowcolor, glowsize, scale, effects, modelindex;
 871         int culled_pvs, culled_portal, culled_trace, visibleentities, totalentities;
 872         float alphaf, lightsize;
 873         qbyte *pvs;
 874         vec3_t origin, angles, entmins, entmaxs, lightmins, lightmaxs, testorigin, testeye;
 875         edict_t *ent;
 876         eval_t *val;
 877         trace_t trace;
 878         model_t *model;
 879         entity_state_t *s;
 880
 881         if (client->sendsignon)
 882                 return;
 883
 884         Mod_CheckLoaded(sv.worldmodel);
 885
 886 // find the client's PVS
 887         // the real place being tested from
 888         VectorAdd (clent->v->origin, clent->v->view_ofs, testeye);
 889         pvs = SV_FatPVS (testeye);
 890
 891         // the place being reported (to consider the fact the client still
 892         // applies the view_ofs[2], so we have to only send the fractional part
 893         // of view_ofs[2], undoing what the client will redo)
 894         VectorCopy (testeye, testorigin);
 895         e = (int) clent->v->view_ofs[2] & 255;
 896         if (e >= 128)
 897                 e -= 256;
 898         testorigin[2] -= (float) e;
 899         EntityFrame_Clear(&sv_writeentitiestoclient_entityframe, testorigin);
 900
 901         culled_pvs = 0;
 902         culled_portal = 0;
 903         culled_trace = 0;
 904         visibleentities = 0;
 905         totalentities = 0;
 906
 907         clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
 908         // send all entities that touch the pvs
 909         ent = NEXT_EDICT(sv.edicts);
 910         for (e = 1;e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 911         {
 912                 if (ent->e->free)
 913                         continue;
 914                 flags = 0;
 915
 916                 if (ent != clent) // LordHavoc: always send player
 917                 {
 918                         if ((val = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)) && val->edict)
 919                         {
 920                                 if (val->edict == clentnum)
 921                                         flags |= RENDER_VIEWMODEL; // show relative to the view
 922                                 else
 923                                 {
 924                                         // don't show to anyone else
 925                                         continue;
 926                                 }
 927                         }
 928                         else
 929                         {
 930                                 // LordHavoc: never draw something told not to display to this client
 931                                 if ((val = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)) && val->edict == clentnum)
 932                                         continue;
 933                                 if ((val = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)) && val->edict && val->edict != clentnum)
 934                                         continue;
 935                         }
 936                 }
 937
 938                 glowsize = 0;
 939                 effects = ent->v->effects;
 940                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_size)))
 941                         glowsize = (int) val->_float >> 2;
 942                 glowsize = bound(0, glowsize, 255);
 943
 944                 lightsize = 0;
 945                 if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
 946                 {
 947                         if (effects & EF_BRIGHTFIELD)
 948                                 lightsize = max(lightsize, 80);
 949                         if (effects & EF_MUZZLEFLASH)
 950                                 lightsize = max(lightsize, 100);
 951                         if (effects & EF_BRIGHTLIGHT)
 952                                 lightsize = max(lightsize, 400);
 953                         if (effects & EF_DIMLIGHT)
 954                                 lightsize = max(lightsize, 200);
 955                         if (effects & EF_RED)
 956                                 lightsize = max(lightsize, 200);
 957                         if (effects & EF_BLUE)
 958                                 lightsize = max(lightsize, 200);
 959                         if (effects & EF_FLAME)
 960                                 lightsize = max(lightsize, 250);
 961                         if (effects & EF_STARDUST)
 962                                 lightsize = max(lightsize, 100);
 963                 }
 964                 if (glowsize)
 965                         lightsize = max(lightsize, glowsize << 2);
 966
 967                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_trail)))
 968                 if (val->_float != 0)
 969                 {
 970                         flags |= RENDER_GLOWTRAIL;
 971                         lightsize = max(lightsize, 100);
 972                 }
 973
 974                 modelindex = 0;
 975                 if (ent->v->modelindex >= 0 && ent->v->modelindex < MAX_MODELS && *PR_GetString(ent->v->model))
 976                 {
 977                         modelindex = ent->v->modelindex;
 978                         model = sv.models[(int)ent->v->modelindex];
 979                         Mod_CheckLoaded(model);
 980                 }
 981                 else
 982                 {
 983                         model = NULL;
 984                         if (ent != clent) // LordHavoc: always send player
 985                                 if (lightsize == 0) // no effects
 986                                         continue;
 987                 }
 988
 989                 VectorCopy(ent->v->angles, angles);
 990                 if (DotProduct(ent->v->velocity, ent->v->velocity) >= 1.0f && host_client->latency >= 0.01f)
 991                 {
 992                         VectorMA(ent->v->origin, host_client->latency, ent->v->velocity, origin);
 993                         // LordHavoc: trace predicted movement to avoid putting things in walls
 994                         trace = SV_Move (ent->v->origin, ent->v->mins, ent->v->maxs, origin, MOVE_NORMAL, ent);
 995                         VectorCopy(trace.endpos, origin);
 996                 }
 997                 else
 998                 {
 999                         VectorCopy(ent->v->origin, origin);
1000                 }
1001
1002                 // ent has survived every check so far, check if it is visible
1003                 // always send embedded brush models, they don't generate much traffic
1004                 if (ent != clent && ((flags & RENDER_VIEWMODEL) == 0) && (model == NULL || model->type != mod_brush || model->name[0] != '*'))
1005                 {
1006                         // use the predicted origin
1007                         entmins[0] = origin[0] - 1.0f;
1008                         entmins[1] = origin[1] - 1.0f;
1009                         entmins[2] = origin[2] - 1.0f;
1010                         entmaxs[0] = origin[0] + 1.0f;
1011                         entmaxs[1] = origin[1] + 1.0f;
1012                         entmaxs[2] = origin[2] + 1.0f;
1013                         // using the model's bounding box to ensure things are visible regardless of their physics box
1014                         if (model)
1015                         {
1016                                 if (ent->v->angles[0] || ent->v->angles[2]) // pitch and roll
1017                                 {
1018                                         VectorAdd(entmins, model->rotatedmins, entmins);
1019                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
1020                                 }
1021                                 else if (ent->v->angles[1])
1022                                 {
1023                                         VectorAdd(entmins, model->yawmins, entmins);
1024                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
1025                                 }
1026                                 else
1027                                 {
1028                                         VectorAdd(entmins, model->normalmins, entmins);
1029                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
1030                                 }
1031                         }
1032                         lightmins[0] = min(entmins[0], origin[0] - lightsize);
1033                         lightmins[1] = min(entmins[1], origin[1] - lightsize);
1034                         lightmins[2] = min(entmins[2], origin[2] - lightsize);
1035                         lightmaxs[0] = min(entmaxs[0], origin[0] + lightsize);
1036                         lightmaxs[1] = min(entmaxs[1], origin[1] + lightsize);
1037                         lightmaxs[2] = min(entmaxs[2], origin[2] + lightsize);
1038
1039                         totalentities++;
1040
1041                         // if not touching a visible leaf
1042                         if (sv_cullentities_pvs.integer && !SV_BoxTouchingPVS(pvs, lightmins, lightmaxs, sv.worldmodel->nodes))
1043                         {
1044                                 culled_pvs++;
1045                                 continue;
1046                         }
1047
1048                         // or not visible through the portals
1049                         if (sv_cullentities_portal.integer && !Portal_CheckBox(sv.worldmodel, testeye, lightmins, lightmaxs))
1050                         {
1051                                 culled_portal++;
1052                                 continue;
1053                         }
1054
1055                         if (sv_cullentities_trace.integer)
1056                         {
1057                                 // LordHavoc: test center first
1058                                 testorigin[0] = (entmins[0] + entmaxs[0]) * 0.5f;
1059                                 testorigin[1] = (entmins[1] + entmaxs[1]) * 0.5f;
1060                                 testorigin[2] = (entmins[2] + entmaxs[2]) * 0.5f;
1061                                 Collision_ClipTrace(&trace, NULL, sv.worldmodel, vec3_origin, vec3_origin, vec3_origin, vec3_origin, testeye, vec3_origin, vec3_origin, testorigin);
1062                                 if (trace.fraction == 1)
1063                                         client->visibletime[e] = realtime + 1;
1064                                 else
1065                                 {
1066                                         // LordHavoc: test random offsets, to maximize chance of detection
1067                                         testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
1068                                         testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
1069                                         testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
1070                                         Collision_ClipTrace(&trace, NULL, sv.worldmodel, vec3_origin, vec3_origin, vec3_origin, vec3_origin, testeye, vec3_origin, vec3_origin, testorigin);
1071                                         if (trace.fraction == 1)
1072                                                 client->visibletime[e] = realtime + 1;
1073                                         else
1074                                         {
1075                                                 if (lightsize)
1076                                                 {
1077                                                         // LordHavoc: test random offsets, to maximize chance of detection
1078                                                         testorigin[0] = lhrandom(lightmins[0], lightmaxs[0]);
1079                                                         testorigin[1] = lhrandom(lightmins[1], lightmaxs[1]);
1080                                                         testorigin[2] = lhrandom(lightmins[2], lightmaxs[2]);
1081                                                         Collision_ClipTrace(&trace, NULL, sv.worldmodel, vec3_origin, vec3_origin, vec3_origin, vec3_origin, testeye, vec3_origin, vec3_origin, testorigin);
1082                                                         if (trace.fraction == 1)
1083                                                                 client->visibletime[e] = realtime + 1;
1084                                                         else
1085                                                         {
1086                                                                 if (realtime > client->visibletime[e])
1087                                                                 {
1088                                                                         culled_trace++;
1089                                                                         continue;
1090                                                                 }
1091                                                         }
1092                                                 }
1093                                                 else
1094                                                 {
1095                                                         if (realtime > client->visibletime[e])
1096                                                         {
1097                                                                 culled_trace++;
1098                                                                 continue;
1099                                                         }
1100                                                 }
1101                                         }
1102                                 }
1103                         }
1104                         visibleentities++;
1105                 }
1106
1107                 alphaf = 255.0f;
1108                 scale = 16;
1109                 glowcolor = 254;
1110                 effects = ent->v->effects;
1111
1112                 if ((val = GETEDICTFIELDVALUE(ent, eval_alpha)))
1113                 if (val->_float != 0)
1114                         alphaf = val->_float * 255.0;
1115
1116                 // HalfLife support
1117                 if ((val = GETEDICTFIELDVALUE(ent, eval_renderamt)))
1118                 if (val->_float != 0)
1119                         alphaf = val->_float;
1120
1121                 if (alphaf == 0.0f)
1122                         alphaf = 255.0f;
1123                 alpha = bound(0, alphaf, 255);
1124
1125                 if ((val = GETEDICTFIELDVALUE(ent, eval_scale)))
1126                 if ((scale = (int) (val->_float * 16.0)) == 0) scale = 16;
1127                 if (scale < 0) scale = 0;
1128                 if (scale > 255) scale = 255;
1129
1130                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_color)))
1131                 if (val->_float != 0)
1132                         glowcolor = (int) val->_float;
1133
1134                 if ((val = GETEDICTFIELDVALUE(ent, eval_fullbright)))
1135                 if (val->_float != 0)
1136                         effects |= EF_FULLBRIGHT;
1137
1138                 if (ent != clent)
1139                 {
1140                         if (lightsize == 0) // no effects
1141                         {
1142                                 if (model) // model
1143                                 {
1144                                         // don't send if flagged for NODRAW and there are no effects
1145                                         if (model->flags == 0 && ((effects & EF_NODRAW) || scale <= 0 || alpha <= 0))
1146                                                 continue;
1147                                 }
1148                                 else // no model and no effects
1149                                         continue;
1150                         }
1151                 }
1152
1153                 if ((val = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)) && val->edict == clentnum)
1154                         flags |= RENDER_EXTERIORMODEL;
1155
1156                 if (ent->v->movetype == MOVETYPE_STEP)
1157                         flags |= RENDER_STEP;
1158                 // don't send an entity if it's coordinates would wrap around
1159                 if ((effects & EF_LOWPRECISION) && origin[0] >= -32768 && origin[1] >= -32768 && origin[2] >= -32768 && origin[0] <= 32767 && origin[1] <= 32767 && origin[2] <= 32767)
1160                         flags |= RENDER_LOWPRECISION;
1161
1162                 s = EntityFrame_NewEntity(&sv_writeentitiestoclient_entityframe, e);
1163                 // if we run out of space, abort
1164                 if (!s)
1165                         break;
1166                 VectorCopy(origin, s->origin);
1167                 VectorCopy(angles, s->angles);
1168                 if (ent->v->colormap >= 1024)
1169                         flags |= RENDER_COLORMAPPED;
1170                 s->colormap = ent->v->colormap;
1171                 s->skin = ent->v->skin;
1172                 s->frame = ent->v->frame;
1173                 s->modelindex = modelindex;
1174                 s->effects = effects;
1175                 s->alpha = alpha;
1176                 s->scale = scale;
1177                 s->glowsize = glowsize;
1178                 s->glowcolor = glowcolor;
1179                 s->flags = flags;
1180         }
1181         sv_writeentitiestoclient_entityframe.framenum = ++client->entityframenumber;
1182         EntityFrame_Write(&client->entitydatabase, &sv_writeentitiestoclient_entityframe, msg);
1183
1184         if (sv_cullentities_stats.integer)
1185                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d portal %d trace\n", client->name, totalentities, visibleentities, culled_pvs + culled_portal + culled_trace, culled_pvs, culled_portal, culled_trace);
1186 }
1187 #endif
1188
1189 /*
1190 =============
1191 SV_CleanupEnts
1192
1193 =============
1194 */
1195 void SV_CleanupEnts (void)
1196 {
1197         int             e;
1198         edict_t *ent;
1199
1200         ent = NEXT_EDICT(sv.edicts);
1201         for (e=1 ; e<sv.num_edicts ; e++, ent = NEXT_EDICT(ent))
1202                 ent->v->effects = (int)ent->v->effects & ~EF_MUZZLEFLASH;
1203 }
1204
1205 /*
1206 ==================
1207 SV_WriteClientdataToMessage
1208
1209 ==================
1210 */
1211 void SV_WriteClientdataToMessage (edict_t *ent, sizebuf_t *msg)
1212 {
1213         int             bits;
1214         int             i;
1215         edict_t *other;
1216         int             items;
1217         eval_t  *val;
1218         vec3_t  punchvector;
1219         qbyte   viewzoom;
1220
1221 //
1222 // send a damage message
1223 //
1224         if (ent->v->dmg_take || ent->v->dmg_save)
1225         {
1226                 other = PROG_TO_EDICT(ent->v->dmg_inflictor);
1227                 MSG_WriteByte (msg, svc_damage);
1228                 MSG_WriteByte (msg, ent->v->dmg_save);
1229                 MSG_WriteByte (msg, ent->v->dmg_take);
1230                 for (i=0 ; i<3 ; i++)
1231                         MSG_WriteDPCoord (msg, other->v->origin[i] + 0.5*(other->v->mins[i] + other->v->maxs[i]));
1232
1233                 ent->v->dmg_take = 0;
1234                 ent->v->dmg_save = 0;
1235         }
1236
1237 //
1238 // send the current viewpos offset from the view entity
1239 //
1240         SV_SetIdealPitch ();            // how much to look up / down ideally
1241
1242 // a fixangle might get lost in a dropped packet.  Oh well.
1243         if ( ent->v->fixangle )
1244         {
1245                 MSG_WriteByte (msg, svc_setangle);
1246                 for (i=0 ; i < 3 ; i++)
1247                         MSG_WriteAngle (msg, ent->v->angles[i] );
1248                 ent->v->fixangle = 0;
1249         }
1250
1251         bits = 0;
1252
1253         if (ent->v->view_ofs[2] != DEFAULT_VIEWHEIGHT)
1254                 bits |= SU_VIEWHEIGHT;
1255
1256         if (ent->v->idealpitch)
1257                 bits |= SU_IDEALPITCH;
1258
1259 // stuff the sigil bits into the high bits of items for sbar, or else
1260 // mix in items2
1261         val = GETEDICTFIELDVALUE(ent, eval_items2);
1262
1263         if (val)
1264                 items = (int)ent->v->items | ((int)val->_float << 23);
1265         else
1266                 items = (int)ent->v->items | ((int)pr_global_struct->serverflags << 28);
1267
1268         bits |= SU_ITEMS;
1269
1270         if ( (int)ent->v->flags & FL_ONGROUND)
1271                 bits |= SU_ONGROUND;
1272
1273         if ( ent->v->waterlevel >= 2)
1274                 bits |= SU_INWATER;
1275
1276         // dpprotocol
1277         VectorClear(punchvector);
1278         if ((val = GETEDICTFIELDVALUE(ent, eval_punchvector)))
1279                 VectorCopy(val->vector, punchvector);
1280
1281         i = 255;
1282         if ((val = GETEDICTFIELDVALUE(ent, eval_viewzoom)))
1283         {
1284                 i = val->_float * 255.0f;
1285                 if (i == 0)
1286                         i = 255;
1287                 else
1288                         i = bound(0, i, 255);
1289         }
1290         viewzoom = i;
1291
1292         if (viewzoom != 255)
1293                 bits |= SU_VIEWZOOM;
1294
1295         for (i=0 ; i<3 ; i++)
1296         {
1297                 if (ent->v->punchangle[i])
1298                         bits |= (SU_PUNCH1<<i);
1299                 if (punchvector[i]) // dpprotocol
1300                         bits |= (SU_PUNCHVEC1<<i); // dpprotocol
1301                 if (ent->v->velocity[i])
1302                         bits |= (SU_VELOCITY1<<i);
1303         }
1304
1305         if (ent->v->weaponframe)
1306                 bits |= SU_WEAPONFRAME;
1307
1308         if (ent->v->armorvalue)
1309                 bits |= SU_ARMOR;
1310
1311         bits |= SU_WEAPON;
1312
1313         if (bits >= 65536)
1314                 bits |= SU_EXTEND1;
1315         if (bits >= 16777216)
1316                 bits |= SU_EXTEND2;
1317
1318 // send the data
1319
1320         MSG_WriteByte (msg, svc_clientdata);
1321         MSG_WriteShort (msg, bits);
1322         if (bits & SU_EXTEND1)
1323                 MSG_WriteByte(msg, bits >> 16);
1324         if (bits & SU_EXTEND2)
1325                 MSG_WriteByte(msg, bits >> 24);
1326
1327         if (bits & SU_VIEWHEIGHT)
1328                 MSG_WriteChar (msg, ent->v->view_ofs[2]);
1329
1330         if (bits & SU_IDEALPITCH)
1331                 MSG_WriteChar (msg, ent->v->idealpitch);
1332
1333         for (i=0 ; i<3 ; i++)
1334         {
1335                 if (bits & (SU_PUNCH1<<i))
1336                         MSG_WritePreciseAngle(msg, ent->v->punchangle[i]); // dpprotocol
1337                 if (bits & (SU_PUNCHVEC1<<i)) // dpprotocol
1338                         MSG_WriteDPCoord(msg, punchvector[i]); // dpprotocol
1339                 if (bits & (SU_VELOCITY1<<i))
1340                         MSG_WriteChar (msg, ent->v->velocity[i]/16);
1341         }
1342
1343 // [always sent]        if (bits & SU_ITEMS)
1344         MSG_WriteLong (msg, items);
1345
1346         if (bits & SU_WEAPONFRAME)
1347                 MSG_WriteByte (msg, ent->v->weaponframe);
1348         if (bits & SU_ARMOR)
1349                 MSG_WriteByte (msg, ent->v->armorvalue);
1350         if (bits & SU_WEAPON)
1351                 MSG_WriteByte (msg, SV_ModelIndex(PR_GetString(ent->v->weaponmodel)));
1352
1353         MSG_WriteShort (msg, ent->v->health);
1354         MSG_WriteByte (msg, ent->v->currentammo);
1355         MSG_WriteByte (msg, ent->v->ammo_shells);
1356         MSG_WriteByte (msg, ent->v->ammo_nails);
1357         MSG_WriteByte (msg, ent->v->ammo_rockets);
1358         MSG_WriteByte (msg, ent->v->ammo_cells);
1359
1360         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1361         {
1362                 for(i=0;i<32;i++)
1363                 {
1364                         if ( ((int)ent->v->weapon) & (1<<i) )
1365                         {
1366                                 MSG_WriteByte (msg, i);
1367                                 break;
1368                         }
1369                 }
1370         }
1371         else
1372         {
1373                 MSG_WriteByte (msg, ent->v->weapon);
1374         }
1375
1376         if (bits & SU_VIEWZOOM)
1377                 MSG_WriteByte (msg, viewzoom);
1378 }
1379
1380 /*
1381 =======================
1382 SV_SendClientDatagram
1383 =======================
1384 */
1385 static qbyte sv_sendclientdatagram_buf[MAX_DATAGRAM]; // FIXME?
1386 qboolean SV_SendClientDatagram (client_t *client)
1387 {
1388         sizebuf_t       msg;
1389
1390         msg.data = sv_sendclientdatagram_buf;
1391         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1392         msg.cursize = 0;
1393
1394         MSG_WriteByte (&msg, svc_time);
1395         MSG_WriteFloat (&msg, sv.time);
1396
1397         if (client->spawned)
1398         {
1399                 // add the client specific data to the datagram
1400                 SV_WriteClientdataToMessage (client->edict, &msg);
1401
1402                 SV_WriteEntitiesToClient (client, client->edict, &msg);
1403
1404                 // copy the server datagram if there is space
1405                 if (msg.cursize + sv.datagram.cursize < msg.maxsize)
1406                         SZ_Write (&msg, sv.datagram.data, sv.datagram.cursize);
1407         }
1408
1409 // send the datagram
1410         if (NET_SendUnreliableMessage (client->netconnection, &msg) == -1)
1411         {
1412                 SV_DropClient (true);// if the message couldn't send, kick off
1413                 return false;
1414         }
1415
1416         return true;
1417 }
1418
1419 /*
1420 =======================
1421 SV_UpdateToReliableMessages
1422 =======================
1423 */
1424 void SV_UpdateToReliableMessages (void)
1425 {
1426         int i, j;
1427         client_t *client;
1428
1429 // check for changes to be sent over the reliable streams
1430         for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1431         {
1432                 sv_player = host_client->edict;
1433                 if (host_client->old_frags != sv_player->v->frags)
1434                 {
1435                         for (j=0, client = svs.clients ; j<svs.maxclients ; j++, client++)
1436                         {
1437                                 if (!client->active || !client->spawned)
1438                                         continue;
1439                                 MSG_WriteByte (&client->message, svc_updatefrags);
1440                                 MSG_WriteByte (&client->message, i);
1441                                 MSG_WriteShort (&client->message, sv_player->v->frags);
1442                         }
1443
1444                         host_client->old_frags = sv_player->v->frags;
1445                 }
1446         }
1447
1448         for (j=0, host_client = svs.clients ; j<svs.maxclients ; j++, host_client++)
1449         {
1450                 if (!host_client->active)
1451                         continue;
1452                 SZ_Write (&host_client->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1453         }
1454
1455         SZ_Clear (&sv.reliable_datagram);
1456 }
1457
1458
1459 /*
1460 =======================
1461 SV_SendNop
1462
1463 Send a nop message without trashing or sending the accumulated client
1464 message buffer
1465 =======================
1466 */
1467 void SV_SendNop (client_t *client)
1468 {
1469         sizebuf_t       msg;
1470         qbyte           buf[4];
1471
1472         msg.data = buf;
1473         msg.maxsize = sizeof(buf);
1474         msg.cursize = 0;
1475
1476         MSG_WriteChar (&msg, svc_nop);
1477
1478         if (NET_SendUnreliableMessage (client->netconnection, &msg) == -1)
1479                 SV_DropClient (true);   // if the message couldn't send, kick off
1480         client->last_message = realtime;
1481 }
1482
1483 /*
1484 =======================
1485 SV_SendClientMessages
1486 =======================
1487 */
1488 void SV_SendClientMessages (void)
1489 {
1490         int                     i;
1491
1492 // update frags, names, etc
1493         SV_UpdateToReliableMessages ();
1494
1495 // build individual updates
1496         for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1497         {
1498                 if (!host_client->active)
1499                         continue;
1500
1501 #ifndef NOROUTINGFIX
1502                 if (host_client->sendserverinfo)
1503                 {
1504                         host_client->sendserverinfo = false;
1505                         SV_SendServerinfo (host_client);
1506                 }
1507 #endif
1508
1509                 if (host_client->spawned)
1510                 {
1511                         if (!SV_SendClientDatagram (host_client))
1512                                 continue;
1513                 }
1514                 else
1515                 {
1516                 // the player isn't totally in the game yet
1517                 // send small keepalive messages if too much time has passed
1518                 // send a full message when the next signon stage has been requested
1519                 // some other message data (name changes, etc) may accumulate
1520                 // between signon stages
1521                         if (!host_client->sendsignon)
1522                         {
1523                                 if (realtime - host_client->last_message > 5)
1524                                         SV_SendNop (host_client);
1525                                 continue;       // don't send out non-signon messages
1526                         }
1527                 }
1528
1529                 // check for an overflowed message.  Should only happen
1530                 // on a very fucked up connection that backs up a lot, then
1531                 // changes level
1532                 if (host_client->message.overflowed)
1533                 {
1534                         SV_DropClient (true); // overflowed
1535                         host_client->message.overflowed = false;
1536                         continue;
1537                 }
1538
1539                 if (host_client->message.cursize || host_client->dropasap)
1540                 {
1541                         if (!NET_CanSendMessage (host_client->netconnection))
1542                                 continue;
1543
1544                         if (host_client->dropasap)
1545                                 SV_DropClient (false);  // went to another level
1546                         else
1547                         {
1548                                 if (NET_SendMessage (host_client->netconnection, &host_client->message) == -1)
1549                                         SV_DropClient (true);   // if the message couldn't send, kick off
1550                                 SZ_Clear (&host_client->message);
1551                                 host_client->last_message = realtime;
1552                                 host_client->sendsignon = false;
1553                         }
1554                 }
1555         }
1556
1557
1558 // clear muzzle flashes
1559         SV_CleanupEnts ();
1560 }
1561
1562
1563 /*
1564 ==============================================================================
1565
1566 SERVER SPAWNING
1567
1568 ==============================================================================
1569 */
1570
1571 /*
1572 ================
1573 SV_ModelIndex
1574
1575 ================
1576 */
1577 int SV_ModelIndex (const char *name)
1578 {
1579         int i;
1580
1581         if (!name || !name[0])
1582                 return 0;
1583
1584         for (i=0 ; i<MAX_MODELS && sv.model_precache[i] ; i++)
1585                 if (!strcmp(sv.model_precache[i], name))
1586                         return i;
1587         if (i==MAX_MODELS || !sv.model_precache[i])
1588                 Host_Error ("SV_ModelIndex: model %s not precached", name);
1589         return i;
1590 }
1591
1592 #ifdef SV_QUAKEENTITIES
1593 /*
1594 ================
1595 SV_CreateBaseline
1596
1597 ================
1598 */
1599 void SV_CreateBaseline (void)
1600 {
1601         int i, entnum, large;
1602         edict_t *svent;
1603
1604         // LordHavoc: clear *all* states (note just active ones)
1605         for (entnum = 0;entnum < sv.max_edicts;entnum++)
1606         {
1607                 // get the current server version
1608                 svent = EDICT_NUM(entnum);
1609
1610                 // LordHavoc: always clear state values, whether the entity is in use or not
1611                 ClearStateToDefault(&svent->e->baseline);
1612
1613                 if (svent->e->free)
1614                         continue;
1615                 if (entnum > svs.maxclients && !svent->v->modelindex)
1616                         continue;
1617
1618                 // create entity baseline
1619                 VectorCopy (svent->v->origin, svent->e->baseline.origin);
1620                 VectorCopy (svent->v->angles, svent->e->baseline.angles);
1621                 svent->e->baseline.frame = svent->v->frame;
1622                 svent->e->baseline.skin = svent->v->skin;
1623                 if (entnum > 0 && entnum <= svs.maxclients)
1624                 {
1625                         svent->e->baseline.colormap = entnum;
1626                         svent->e->baseline.modelindex = SV_ModelIndex("progs/player.mdl");
1627                 }
1628                 else
1629                 {
1630                         svent->e->baseline.colormap = 0;
1631                         svent->e->baseline.modelindex = svent->v->modelindex;
1632                 }
1633
1634                 large = false;
1635                 if (svent->e->baseline.modelindex & 0xFF00 || svent->e->baseline.frame & 0xFF00)
1636                         large = true;
1637
1638                 // add to the message
1639                 if (large)
1640                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
1641                 else
1642                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
1643                 MSG_WriteShort (&sv.signon, entnum);
1644
1645                 if (large)
1646                 {
1647                         MSG_WriteShort (&sv.signon, svent->e->baseline.modelindex);
1648                         MSG_WriteShort (&sv.signon, svent->e->baseline.frame);
1649                 }
1650                 else
1651                 {
1652                         MSG_WriteByte (&sv.signon, svent->e->baseline.modelindex);
1653                         MSG_WriteByte (&sv.signon, svent->e->baseline.frame);
1654                 }
1655                 MSG_WriteByte (&sv.signon, svent->e->baseline.colormap);
1656                 MSG_WriteByte (&sv.signon, svent->e->baseline.skin);
1657                 for (i=0 ; i<3 ; i++)
1658                 {
1659                         MSG_WriteDPCoord(&sv.signon, svent->e->baseline.origin[i]);
1660                         MSG_WriteAngle(&sv.signon, svent->e->baseline.angles[i]);
1661                 }
1662         }
1663 }
1664 #endif
1665
1666
1667 /*
1668 ================
1669 SV_SendReconnect
1670
1671 Tell all the clients that the server is changing levels
1672 ================
1673 */
1674 void SV_SendReconnect (void)
1675 {
1676         char    data[128];
1677         sizebuf_t       msg;
1678
1679         msg.data = data;
1680         msg.cursize = 0;
1681         msg.maxsize = sizeof(data);
1682
1683         MSG_WriteChar (&msg, svc_stufftext);
1684         MSG_WriteString (&msg, "reconnect\n");
1685         NET_SendToAll (&msg, 5);
1686
1687         if (cls.state != ca_dedicated)
1688                 Cmd_ExecuteString ("reconnect\n", src_command);
1689 }
1690
1691
1692 /*
1693 ================
1694 SV_SaveSpawnparms
1695
1696 Grabs the current state of each client for saving across the
1697 transition to another level
1698 ================
1699 */
1700 void SV_SaveSpawnparms (void)
1701 {
1702         int             i, j;
1703
1704         svs.serverflags = pr_global_struct->serverflags;
1705
1706         for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1707         {
1708                 if (!host_client->active)
1709                         continue;
1710
1711         // call the progs to get default spawn parms for the new client
1712                 pr_global_struct->self = EDICT_TO_PROG(host_client->edict);
1713                 PR_ExecuteProgram (pr_global_struct->SetChangeParms, "QC function SetChangeParms is missing");
1714                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
1715                         host_client->spawn_parms[j] = (&pr_global_struct->parm1)[j];
1716         }
1717 }
1718
1719 void SV_IncreaseEdicts(void)
1720 {
1721         int i;
1722         edict_t *ent;
1723         int oldmax_edicts = sv.max_edicts;
1724         void *oldedictsengineprivate = sv.edictsengineprivate;
1725         void *oldedictsfields = sv.edictsfields;
1726         void *oldmoved_edicts = sv.moved_edicts;
1727
1728         // links don't survive the transition, so unlink everything
1729         for (i = 0;i < sv.max_edicts;i++)
1730                 SV_UnlinkEdict (sv.edicts + i);
1731         SV_ClearWorld();
1732
1733         sv.max_edicts   = min(sv.max_edicts + 32, MAX_EDICTS);
1734         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1735         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1736         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1737
1738         memcpy(sv.edictsengineprivate, oldedictsengineprivate, oldmax_edicts * sizeof(edict_engineprivate_t));
1739         memcpy(sv.edictsfields, oldedictsfields, oldmax_edicts * pr_edict_size);
1740
1741         for (i = 0;i < sv.max_edicts;i++)
1742         {
1743                 ent = sv.edicts + i;
1744                 ent->e = sv.edictsengineprivate + i;
1745                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1746                 // link every entity except world
1747                 if (i > 0)
1748                         SV_LinkEdict(ent, false);
1749         }
1750
1751         Mem_Free(oldedictsengineprivate);
1752         Mem_Free(oldedictsfields);
1753         Mem_Free(oldmoved_edicts);
1754 }
1755
1756 /*
1757 ================
1758 SV_SpawnServer
1759
1760 This is called at the start of each level
1761 ================
1762 */
1763 extern float            scr_centertime_off;
1764
1765 void SV_SpawnServer (const char *server)
1766 {
1767         edict_t *ent;
1768         int i;
1769         qbyte *entities;
1770
1771         // let's not have any servers with no name
1772         if (hostname.string[0] == 0)
1773                 Cvar_Set ("hostname", "UNNAMED");
1774         scr_centertime_off = 0;
1775
1776         Con_DPrintf ("SpawnServer: %s\n",server);
1777         svs.changelevel_issued = false;         // now safe to issue another
1778
1779 //
1780 // tell all connected clients that we are going to a new level
1781 //
1782         if (sv.active)
1783                 SV_SendReconnect ();
1784
1785 //
1786 // make cvars consistant
1787 //
1788         if (coop.integer)
1789                 Cvar_SetValue ("deathmatch", 0);
1790         current_skill = bound(0, (int)(skill.value + 0.5), 3);
1791
1792         Cvar_SetValue ("skill", (float)current_skill);
1793
1794 //
1795 // set up the new server
1796 //
1797         Host_ClearMemory ();
1798
1799         memset (&sv, 0, sizeof(sv));
1800
1801         strcpy (sv.name, server);
1802
1803 // load progs to get entity field count
1804         PR_LoadProgs ();
1805
1806 // allocate server memory
1807         // start out with just enough room for clients and a reasonable estimate of entities
1808         sv.max_edicts = ((svs.maxclients + 128) + 31) & ~31;
1809         sv.max_edicts = min(sv.max_edicts, MAX_EDICTS);
1810
1811         // clear the edict memory pool
1812         Mem_EmptyPool(sv_edicts_mempool);
1813         // edict_t structures (hidden from progs)
1814         sv.edicts = Mem_Alloc(sv_edicts_mempool, MAX_EDICTS * sizeof(edict_t));
1815         // engine private structures (hidden from progs)
1816         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1817         // progs fields, often accessed by server
1818         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1819         // used by PushMove to move back pushed entities
1820         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1821         for (i = 0;i < sv.max_edicts;i++)
1822         {
1823                 ent = sv.edicts + i;
1824                 ent->e = sv.edictsengineprivate + i;
1825                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1826         }
1827
1828         sv.datagram.maxsize = sizeof(sv.datagram_buf);
1829         sv.datagram.cursize = 0;
1830         sv.datagram.data = sv.datagram_buf;
1831
1832         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
1833         sv.reliable_datagram.cursize = 0;
1834         sv.reliable_datagram.data = sv.reliable_datagram_buf;
1835
1836         sv.signon.maxsize = sizeof(sv.signon_buf);
1837         sv.signon.cursize = 0;
1838         sv.signon.data = sv.signon_buf;
1839
1840 // leave slots at start for clients only
1841         sv.num_edicts = svs.maxclients+1;
1842         for (i=0 ; i<svs.maxclients ; i++)
1843                 svs.clients[i].edict = EDICT_NUM(i+1);
1844
1845         sv.state = ss_loading;
1846         sv.paused = false;
1847
1848         sv.time = 1.0;
1849
1850         Mod_ClearUsed();
1851
1852         strcpy (sv.name, server);
1853         sprintf (sv.modelname,"maps/%s.bsp", server);
1854         sv.worldmodel = Mod_ForName(sv.modelname, false, true, true);
1855         if (!sv.worldmodel)
1856         {
1857                 Con_Printf ("Couldn't spawn server %s\n", sv.modelname);
1858                 sv.active = false;
1859                 return;
1860         }
1861         sv.models[1] = sv.worldmodel;
1862
1863 //
1864 // clear world interaction links
1865 //
1866         SV_ClearWorld ();
1867
1868         sv.sound_precache[0] = "";
1869
1870         sv.model_precache[0] = "";
1871         sv.model_precache[1] = sv.modelname;
1872         for (i = 1;i < sv.worldmodel->numsubmodels;i++)
1873         {
1874                 sv.model_precache[i+1] = localmodels[i];
1875                 sv.models[i+1] = Mod_ForName (localmodels[i], false, false, false);
1876         }
1877
1878 //
1879 // load the rest of the entities
1880 //
1881         ent = EDICT_NUM(0);
1882         memset (ent->v, 0, progs->entityfields * 4);
1883         ent->e->free = false;
1884         ent->v->model = PR_SetString(sv.modelname);
1885         ent->v->modelindex = 1;         // world model
1886         ent->v->solid = SOLID_BSP;
1887         ent->v->movetype = MOVETYPE_PUSH;
1888
1889         if (coop.integer)
1890                 pr_global_struct->coop = coop.integer;
1891         else
1892                 pr_global_struct->deathmatch = deathmatch.integer;
1893
1894         pr_global_struct->mapname = PR_SetString(sv.name);
1895
1896 // serverflags are for cross level information (sigils)
1897         pr_global_struct->serverflags = svs.serverflags;
1898
1899         // load replacement entity file if found
1900         entities = NULL;
1901         if (sv_entpatch.integer)
1902                 entities = FS_LoadFile(va("maps/%s.ent", sv.name), true);
1903         if (entities)
1904         {
1905                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
1906                 ED_LoadFromFile (entities);
1907                 Mem_Free(entities);
1908         }
1909         else
1910                 ED_LoadFromFile (sv.worldmodel->entities);
1911
1912
1913         // LordHavoc: clear world angles (to fix e3m3.bsp)
1914         VectorClear(sv.edicts->v->angles);
1915
1916         sv.active = true;
1917
1918 // all setup is completed, any further precache statements are errors
1919         sv.state = ss_active;
1920
1921 // run two frames to allow everything to settle
1922         sv.frametime = pr_global_struct->frametime = host_frametime = 0.1;
1923         SV_Physics ();
1924         sv.frametime = pr_global_struct->frametime = host_frametime = 0.1;
1925         SV_Physics ();
1926
1927         Mod_PurgeUnused();
1928
1929 #ifdef QUAKEENTITIES
1930 // create a baseline for more efficient communications
1931         SV_CreateBaseline ();
1932 #endif
1933
1934 // send serverinfo to all connected clients
1935         for (i=0,host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1936                 if (host_client->active)
1937                         SV_SendServerinfo (host_client);
1938
1939         Con_DPrintf ("Server spawned.\n");
1940         NET_Heartbeat (2);
1941 }
1942