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_deltacompress);
  63         Cvar_RegisterVariable (&sv_cullentities_pvs);
  64         Cvar_RegisterVariable (&sv_cullentities_portal);
  65         Cvar_RegisterVariable (&sv_cullentities_trace);
  66         Cvar_RegisterVariable (&sv_cullentities_stats);
  67         Cvar_RegisterVariable (&sv_entpatch);
  68
  69         SV_Phys_Init();
  70         SV_World_Init();
  71
  72         for (i = 0;i < MAX_MODELS;i++)
  73                 sprintf (localmodels[i], "*%i", i);
  74
  75         sv_edicts_mempool = Mem_AllocPool("edicts");
  76 }
  77
  78 /*
  79 =============================================================================
  80
  81 EVENT MESSAGES
  82
  83 =============================================================================
  84 */
  85
  86 /*
  87 ==================
  88 SV_StartParticle
  89
  90 Make sure the event gets sent to all clients
  91 ==================
  92 */
  93 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
  94 {
  95         int             i, v;
  96
  97         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
  98                 return;
  99         MSG_WriteByte (&sv.datagram, svc_particle);
 100         MSG_WriteDPCoord (&sv.datagram, org[0]);
 101         MSG_WriteDPCoord (&sv.datagram, org[1]);
 102         MSG_WriteDPCoord (&sv.datagram, org[2]);
 103         for (i=0 ; i<3 ; i++)
 104         {
 105                 v = dir[i]*16;
 106                 if (v > 127)
 107                         v = 127;
 108                 else if (v < -128)
 109                         v = -128;
 110                 MSG_WriteChar (&sv.datagram, v);
 111         }
 112         MSG_WriteByte (&sv.datagram, count);
 113         MSG_WriteByte (&sv.datagram, color);
 114 }
 115
 116 /*
 117 ==================
 118 SV_StartEffect
 119
 120 Make sure the event gets sent to all clients
 121 ==================
 122 */
 123 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 124 {
 125         if (modelindex >= 256 || startframe >= 256)
 126         {
 127                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 128                         return;
 129                 MSG_WriteByte (&sv.datagram, svc_effect2);
 130                 MSG_WriteDPCoord (&sv.datagram, org[0]);
 131                 MSG_WriteDPCoord (&sv.datagram, org[1]);
 132                 MSG_WriteDPCoord (&sv.datagram, org[2]);
 133                 MSG_WriteShort (&sv.datagram, modelindex);
 134                 MSG_WriteShort (&sv.datagram, startframe);
 135                 MSG_WriteByte (&sv.datagram, framecount);
 136                 MSG_WriteByte (&sv.datagram, framerate);
 137         }
 138         else
 139         {
 140                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 141                         return;
 142                 MSG_WriteByte (&sv.datagram, svc_effect);
 143                 MSG_WriteDPCoord (&sv.datagram, org[0]);
 144                 MSG_WriteDPCoord (&sv.datagram, org[1]);
 145                 MSG_WriteDPCoord (&sv.datagram, org[2]);
 146                 MSG_WriteByte (&sv.datagram, modelindex);
 147                 MSG_WriteByte (&sv.datagram, startframe);
 148                 MSG_WriteByte (&sv.datagram, framecount);
 149                 MSG_WriteByte (&sv.datagram, framerate);
 150         }
 151 }
 152
 153 /*
 154 ==================
 155 SV_StartSound
 156
 157 Each entity can have eight independant sound sources, like voice,
 158 weapon, feet, etc.
 159
 160 Channel 0 is an auto-allocate channel, the others override anything
 161 already running on that entity/channel pair.
 162
 163 An attenuation of 0 will play full volume everywhere in the level.
 164 Larger attenuations will drop off.  (max 4 attenuation)
 165
 166 ==================
 167 */
 168 void SV_StartSound (edict_t *entity, int channel, char *sample, int volume, float attenuation)
 169 {
 170         int sound_num, field_mask, i, ent;
 171
 172         if (volume < 0 || volume > 255)
 173                 Host_Error ("SV_StartSound: volume = %i", volume);
 174
 175         if (attenuation < 0 || attenuation > 4)
 176                 Host_Error ("SV_StartSound: attenuation = %f", attenuation);
 177
 178         if (channel < 0 || channel > 7)
 179                 Host_Error ("SV_StartSound: channel = %i", channel);
 180
 181         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 182                 return;
 183
 184 // find precache number for sound
 185         for (sound_num=1 ; sound_num<MAX_SOUNDS && sv.sound_precache[sound_num] ; sound_num++)
 186                 if (!strcmp(sample, sv.sound_precache[sound_num]))
 187                         break;
 188
 189         if ( sound_num == MAX_SOUNDS || !sv.sound_precache[sound_num] )
 190         {
 191                 Con_Printf ("SV_StartSound: %s not precached\n", sample);
 192                 return;
 193         }
 194
 195         ent = NUM_FOR_EDICT(entity);
 196
 197         field_mask = 0;
 198         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 199                 field_mask |= SND_VOLUME;
 200         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 201                 field_mask |= SND_ATTENUATION;
 202         if (ent >= 8192)
 203                 field_mask |= SND_LARGEENTITY;
 204         if (sound_num >= 256 || channel >= 8)
 205                 field_mask |= SND_LARGESOUND;
 206
 207 // directed messages go only to the entity they are targeted on
 208         MSG_WriteByte (&sv.datagram, svc_sound);
 209         MSG_WriteByte (&sv.datagram, field_mask);
 210         if (field_mask & SND_VOLUME)
 211                 MSG_WriteByte (&sv.datagram, volume);
 212         if (field_mask & SND_ATTENUATION)
 213                 MSG_WriteByte (&sv.datagram, attenuation*64);
 214         if (field_mask & SND_LARGEENTITY)
 215         {
 216                 MSG_WriteShort (&sv.datagram, ent);
 217                 MSG_WriteByte (&sv.datagram, channel);
 218         }
 219         else
 220                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 221         if (field_mask & SND_LARGESOUND)
 222                 MSG_WriteShort (&sv.datagram, sound_num);
 223         else
 224                 MSG_WriteByte (&sv.datagram, sound_num);
 225         for (i = 0;i < 3;i++)
 226                 MSG_WriteDPCoord (&sv.datagram, entity->v->origin[i]+0.5*(entity->v->mins[i]+entity->v->maxs[i]));
 227 }
 228
 229 /*
 230 ==============================================================================
 231
 232 CLIENT SPAWNING
 233
 234 ==============================================================================
 235 */
 236
 237 /*
 238 ================
 239 SV_SendServerinfo
 240
 241 Sends the first message from the server to a connected client.
 242 This will be sent on the initial connection and upon each server load.
 243 ================
 244 */
 245 void SV_SendServerinfo (client_t *client)
 246 {
 247         char                    **s;
 248         char                    message[128];
 249
 250         // edicts get reallocated on level changes, so we need to update it here
 251         client->edict = EDICT_NUM((client - svs.clients) + 1);
 252
 253         // LordHavoc: clear entityframe tracking
 254         client->entityframenumber = 0;
 255         EntityFrame_ClearDatabase(&client->entitydatabase);
 256
 257         MSG_WriteByte (&client->message, svc_print);
 258         sprintf (message, "\002\nServer: %s build %s (progs %i crc)", gamename, buildstring, pr_crc);
 259         MSG_WriteString (&client->message,message);
 260
 261         MSG_WriteByte (&client->message, svc_serverinfo);
 262         MSG_WriteLong (&client->message, DPPROTOCOL_VERSION3);
 263         MSG_WriteByte (&client->message, svs.maxclients);
 264
 265         if (!coop.integer && deathmatch.integer)
 266                 MSG_WriteByte (&client->message, GAME_DEATHMATCH);
 267         else
 268                 MSG_WriteByte (&client->message, GAME_COOP);
 269
 270         MSG_WriteString (&client->message,PR_GetString(sv.edicts->v->message));
 271
 272         for (s = sv.model_precache+1 ; *s ; s++)
 273                 MSG_WriteString (&client->message, *s);
 274         MSG_WriteByte (&client->message, 0);
 275
 276         for (s = sv.sound_precache+1 ; *s ; s++)
 277                 MSG_WriteString (&client->message, *s);
 278         MSG_WriteByte (&client->message, 0);
 279
 280 // send music
 281         MSG_WriteByte (&client->message, svc_cdtrack);
 282         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 283         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 284
 285 // set view
 286         MSG_WriteByte (&client->message, svc_setview);
 287         MSG_WriteShort (&client->message, NUM_FOR_EDICT(client->edict));
 288
 289         MSG_WriteByte (&client->message, svc_signonnum);
 290         MSG_WriteByte (&client->message, 1);
 291
 292         client->sendsignon = true;
 293         client->spawned = false;                // need prespawn, spawn, etc
 294 }
 295
 296 /*
 297 ================
 298 SV_ConnectClient
 299
 300 Initializes a client_t for a new net connection.  This will only be called
 301 once for a player each game, not once for each level change.
 302 ================
 303 */
 304 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 305 {
 306         client_t                *client;
 307         int                             i;
 308         float                   spawn_parms[NUM_SPAWN_PARMS];
 309
 310         client = svs.clients + clientnum;
 311
 312 // set up the client_t
 313         if (sv.loadgame)
 314                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 315         memset (client, 0, sizeof(*client));
 316         client->netconnection = netconnection;
 317
 318         Con_DPrintf("Client %s connected\n", client->netconnection->address);
 319
 320         strcpy(client->name, "unconnected");
 321         strcpy(client->old_name, "unconnected");
 322         client->active = true;
 323         client->spawned = false;
 324         client->edict = EDICT_NUM(clientnum+1);
 325         client->message.data = client->msgbuf;
 326         client->message.maxsize = sizeof(client->msgbuf);
 327         client->message.allowoverflow = true;           // we can catch it
 328
 329         if (sv.loadgame)
 330                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 331         else
 332         {
 333                 // call the progs to get default spawn parms for the new client
 334                 PR_ExecuteProgram (pr_global_struct->SetNewParms, "QC function SetNewParms is missing");
 335                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 336                         client->spawn_parms[i] = (&pr_global_struct->parm1)[i];
 337         }
 338
 339         SV_SendServerinfo (client);
 340 }
 341
 342
 343 /*
 344 ===============================================================================
 345
 346 FRAME UPDATES
 347
 348 ===============================================================================
 349 */
 350
 351 /*
 352 ==================
 353 SV_ClearDatagram
 354
 355 ==================
 356 */
 357 void SV_ClearDatagram (void)
 358 {
 359         SZ_Clear (&sv.datagram);
 360 }
 361
 362 /*
 363 =============================================================================
 364
 365 The PVS must include a small area around the client to allow head bobbing
 366 or other small motion on the client side.  Otherwise, a bob might cause an
 367 entity that should be visible to not show up, especially when the bob
 368 crosses a waterline.
 369
 370 =============================================================================
 371 */
 372
 373 int             fatbytes;
 374 qbyte   fatpvs[MAX_MAP_LEAFS/8];
 375
 376 void SV_AddToFatPVS (vec3_t org, mnode_t *node)
 377 {
 378         int             i;
 379         qbyte   *pvs;
 380         mplane_t        *plane;
 381         float   d;
 382
 383         while (1)
 384         {
 385         // if this is a leaf, accumulate the pvs bits
 386                 if (node->contents < 0)
 387                 {
 388                         if (node->contents != CONTENTS_SOLID)
 389                         {
 390                                 pvs = sv.worldmodel->brushq1.LeafPVS(sv.worldmodel, (mleaf_t *)node);
 391                                 for (i=0 ; i<fatbytes ; i++)
 392                                         fatpvs[i] |= pvs[i];
 393                         }
 394                         return;
 395                 }
 396
 397                 plane = node->plane;
 398                 d = DotProduct (org, plane->normal) - plane->dist;
 399                 if (d > 8)
 400                         node = node->children[0];
 401                 else if (d < -8)
 402                         node = node->children[1];
 403                 else
 404                 {       // go down both
 405                         SV_AddToFatPVS (org, node->children[0]);
 406                         node = node->children[1];
 407                 }
 408         }
 409 }
 410
 411 /*
 412 =============
 413 SV_FatPVS
 414
 415 Calculates a PVS that is the inclusive or of all leafs within 8 pixels of the
 416 given point.
 417 =============
 418 */
 419 qbyte *SV_FatPVS (vec3_t org)
 420 {
 421         fatbytes = (sv.worldmodel->brushq1.numleafs+31)>>3;
 422         memset (fatpvs, 0, fatbytes);
 423         SV_AddToFatPVS (org, sv.worldmodel->brushq1.nodes);
 424         return fatpvs;
 425 }
 426
 427 //=============================================================================
 428
 429
 430 int SV_BoxTouchingPVS (qbyte *pvs, vec3_t mins, vec3_t maxs, mnode_t *node)
 431 {
 432         int leafnum;
 433 loc0:
 434         if (node->contents < 0)
 435         {
 436                 // leaf
 437                 if (node->contents == CONTENTS_SOLID)
 438                         return false;
 439                 leafnum = (mleaf_t *)node - sv.worldmodel->brushq1.leafs - 1;
 440                 return pvs[leafnum >> 3] & (1 << (leafnum & 7));
 441         }
 442
 443         // node - recurse down the BSP tree
 444         switch (BoxOnPlaneSide(mins, maxs, node->plane))
 445         {
 446         case 1: // front
 447                 node = node->children[0];
 448                 goto loc0;
 449         case 2: // back
 450                 node = node->children[1];
 451                 goto loc0;
 452         default: // crossing
 453                 if (node->children[0]->contents != CONTENTS_SOLID)
 454                         if (SV_BoxTouchingPVS (pvs, mins, maxs, node->children[0]))
 455                                 return true;
 456                 node = node->children[1];
 457                 goto loc0;
 458         }
 459         // never reached
 460         return false;
 461 }
 462
 463
 464 /*
 465 =============
 466 SV_WriteEntitiesToClient
 467
 468 =============
 469 */
 470 #ifdef QUAKEENTITIES
 471 void SV_WriteEntitiesToClient (client_t *client, edict_t *clent, sizebuf_t *msg)
 472 {
 473         int e, clentnum, bits, alpha, glowcolor, glowsize, scale, effects, lightsize;
 474         int culled_pvs, culled_portal, culled_trace, visibleentities, totalentities;
 475         qbyte *pvs;
 476         vec3_t origin, angles, entmins, entmaxs, testorigin, testeye;
 477         float nextfullupdate, alphaf;
 478         edict_t *ent;
 479         eval_t *val;
 480         entity_state_t *baseline; // LordHavoc: delta or startup baseline
 481         model_t *model;
 482
 483         Mod_CheckLoaded(sv.worldmodel);
 484
 485 // find the client's PVS
 486         VectorAdd (clent->v->origin, clent->v->view_ofs, testeye);
 487         pvs = SV_FatPVS (testeye);
 488
 489         culled_pvs = 0;
 490         culled_portal = 0;
 491         culled_trace = 0;
 492         visibleentities = 0;
 493         totalentities = 0;
 494
 495         clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
 496         // send all entities that touch the pvs
 497         ent = NEXT_EDICT(sv.edicts);
 498         for (e = 1;e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 499         {
 500                 bits = 0;
 501
 502                 // prevent delta compression against this frame (unless actually sent, which will restore this later)
 503                 nextfullupdate = client->nextfullupdate[e];
 504                 client->nextfullupdate[e] = -1;
 505
 506                 if (ent != clent) // LordHavoc: always send player
 507                 {
 508                         if ((val = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)) && val->edict)
 509                         {
 510                                 if (val->edict != clentnum)
 511                                 {
 512                                         // don't show to anyone else
 513                                         continue;
 514                                 }
 515                                 else
 516                                         bits |= U_VIEWMODEL; // show relative to the view
 517                         }
 518                         else
 519                         {
 520                                 // LordHavoc: never draw something told not to display to this client
 521                                 if ((val = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)) && val->edict == clentnum)
 522                                         continue;
 523                                 if ((val = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)) && val->edict && val->edict != clentnum)
 524                                         continue;
 525                         }
 526                 }
 527
 528                 glowsize = 0;
 529
 530                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_size)))
 531                         glowsize = (int) val->_float >> 2;
 532                 if (glowsize > 255) glowsize = 255;
 533                 if (glowsize < 0) glowsize = 0;
 534
 535                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_trail)))
 536                 if (val->_float != 0)
 537                         bits |= U_GLOWTRAIL;
 538
 539                 if (ent->v->modelindex >= 0 && ent->v->modelindex < MAX_MODELS && *PR_GetString(ent->v->model))
 540                 {
 541                         model = sv.models[(int)ent->v->modelindex];
 542                         Mod_CheckLoaded(model);
 543                 }
 544                 else
 545                 {
 546                         model = NULL;
 547                         if (ent != clent) // LordHavoc: always send player
 548                                 if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 549                                         continue;
 550                 }
 551
 552                 VectorCopy(ent->v->angles, angles);
 553                 VectorCopy(ent->v->origin, origin);
 554
 555                 // ent has survived every check so far, check if it is visible
 556                 if (ent != clent && ((bits & U_VIEWMODEL) == 0))
 557                 {
 558                         // use the predicted origin
 559                         entmins[0] = origin[0] - 1.0f;
 560                         entmins[1] = origin[1] - 1.0f;
 561                         entmins[2] = origin[2] - 1.0f;
 562                         entmaxs[0] = origin[0] + 1.0f;
 563                         entmaxs[1] = origin[1] + 1.0f;
 564                         entmaxs[2] = origin[2] + 1.0f;
 565                         // using the model's bounding box to ensure things are visible regardless of their physics box
 566                         if (model)
 567                         {
 568                                 if (ent->v->angles[0] || ent->v->angles[2]) // pitch and roll
 569                                 {
 570                                         VectorAdd(entmins, model->rotatedmins, entmins);
 571                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
 572                                 }
 573                                 else if (ent->v->angles[1])
 574                                 {
 575                                         VectorAdd(entmins, model->yawmins, entmins);
 576                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
 577                                 }
 578                                 else
 579                                 {
 580                                         VectorAdd(entmins, model->normalmins, entmins);
 581                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
 582                                 }
 583                         }
 584
 585                         totalentities++;
 586
 587                         // if not touching a visible leaf
 588                         if (sv_cullentities_pvs.integer && !SV_BoxTouchingPVS(pvs, entmins, entmaxs, sv.worldmodel->brushq1.nodes))
 589                         {
 590                                 culled_pvs++;
 591                                 continue;
 592                         }
 593
 594                         // or not visible through the portals
 595                         if (sv_cullentities_portal.integer && !Portal_CheckBox(sv.worldmodel, testeye, entmins, entmaxs))
 596                         {
 597                                 culled_portal++;
 598                                 continue;
 599                         }
 600
 601                         // don't try to cull embedded brush models with this, they're sometimes huge (spanning several rooms)
 602                         if (sv_cullentities_trace.integer && (model == NULL || model->type != mod_brush || model->name[0] != '*'))
 603                         {
 604                                 // LordHavoc: test random offsets, to maximize chance of detection
 605                                 testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
 606                                 testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
 607                                 testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
 608
 609                                 if (SV_Move(testeye, vec3_origin, vec3_origin, testorigin, MOVE_NOMONSTERS, NULL).fraction == 1)
 610                                         client->visibletime[e] = realtime + 1;
 611                                 else
 612                                 {
 613                                         //test nearest point on bbox
 614                                         testorigin[0] = bound(entmins[0], testeye[0], entmaxs[0]);
 615                                         testorigin[1] = bound(entmins[1], testeye[1], entmaxs[1]);
 616                                         testorigin[2] = bound(entmins[2], testeye[2], entmaxs[2]);
 617
 618                                         if (SV_Move(testeye, vec3_origin, vec3_origin, testorigin, MOVE_NOMONSTERS, NULL).fraction == 1)
 619                                                 client->visibletime[e] = realtime + 1;
 620                                         else if (realtime > client->visibletime[e])
 621                                         {
 622                                                 culled_trace++;
 623                                                 continue;
 624                                         }
 625                                 }
 626                         }
 627                         visibleentities++;
 628                 }
 629
 630                 alphaf = 255.0f;
 631                 scale = 16;
 632                 glowcolor = 254;
 633                 effects = ent->v->effects;
 634
 635                 if ((val = GETEDICTFIELDVALUE(ent, eval_alpha)))
 636                 if (val->_float != 0)
 637                         alphaf = val->_float * 255.0f;
 638
 639                 // HalfLife support
 640                 if ((val = GETEDICTFIELDVALUE(ent, eval_renderamt)))
 641                 if (val->_float != 0)
 642                         alphaf = val->_float;
 643
 644                 if (alphaf == 0.0f)
 645                         alphaf = 255.0f;
 646                 alpha = bound(0, alphaf, 255);
 647
 648                 if ((val = GETEDICTFIELDVALUE(ent, eval_scale)))
 649                 if ((scale = (int) (val->_float * 16.0)) == 0) scale = 16;
 650                 if (scale < 0) scale = 0;
 651                 if (scale > 255) scale = 255;
 652
 653                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_color)))
 654                 if (val->_float != 0)
 655                         glowcolor = (int) val->_float;
 656
 657                 if ((val = GETEDICTFIELDVALUE(ent, eval_fullbright)))
 658                 if (val->_float != 0)
 659                         effects |= EF_FULLBRIGHT;
 660
 661                 if (ent != clent)
 662                 {
 663                         if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 664                         {
 665                                 if (model) // model
 666                                 {
 667                                         // don't send if flagged for NODRAW and there are no effects
 668                                         if (model->flags == 0 && ((effects & EF_NODRAW) || scale <= 0 || alpha <= 0))
 669                                                 continue;
 670                                 }
 671                                 else // no model and no effects
 672                                         continue;
 673                         }
 674                 }
 675
 676                 if (msg->maxsize - msg->cursize < 32) // LordHavoc: increased check from 16 to 32
 677                 {
 678                         Con_Printf ("packet overflow\n");
 679                         // mark the rest of the entities so they can't be delta compressed against this frame
 680                         for (;e < sv.num_edicts;e++)
 681                         {
 682                                 client->nextfullupdate[e] = -1;
 683                                 client->visibletime[e] = -1;
 684                         }
 685                         return;
 686                 }
 687
 688                 if ((val = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)) && val->edict == clentnum)
 689                         bits = bits | U_EXTERIORMODEL;
 690
 691 // send an update
 692                 baseline = &ent->e->baseline;
 693
 694                 if (((int)ent->v->effects & EF_DELTA) && sv_deltacompress.integer)
 695                 {
 696                         // every half second a full update is forced
 697                         if (realtime < client->nextfullupdate[e])
 698                         {
 699                                 bits |= U_DELTA;
 700                                 baseline = &ent->e->deltabaseline;
 701                         }
 702                         else
 703                                 nextfullupdate = realtime + 0.5f;
 704                 }
 705                 else
 706                         nextfullupdate = realtime + 0.5f;
 707
 708                 // restore nextfullupdate since this is being sent for real
 709                 client->nextfullupdate[e] = nextfullupdate;
 710
 711                 if (e >= 256)
 712                         bits |= U_LONGENTITY;
 713
 714                 if (ent->v->movetype == MOVETYPE_STEP)
 715                         bits |= U_STEP;
 716
 717                 // LordHavoc: old stuff, but rewritten to have more exact tolerances
 718                 if (origin[0] != baseline->origin[0])                                                                                   bits |= U_ORIGIN1;
 719                 if (origin[1] != baseline->origin[1])                                                                                   bits |= U_ORIGIN2;
 720                 if (origin[2] != baseline->origin[2])                                                                                   bits |= U_ORIGIN3;
 721                 if (((int)(angles[0]*(256.0/360.0)) & 255) != ((int)(baseline->angles[0]*(256.0/360.0)) & 255)) bits |= U_ANGLE1;
 722                 if (((int)(angles[1]*(256.0/360.0)) & 255) != ((int)(baseline->angles[1]*(256.0/360.0)) & 255)) bits |= U_ANGLE2;
 723                 if (((int)(angles[2]*(256.0/360.0)) & 255) != ((int)(baseline->angles[2]*(256.0/360.0)) & 255)) bits |= U_ANGLE3;
 724                 if (baseline->colormap != (qbyte) ent->v->colormap)                                                             bits |= U_COLORMAP;
 725                 if (baseline->skin != (qbyte) ent->v->skin)                                                                             bits |= U_SKIN;
 726                 if ((baseline->frame & 0x00FF) != ((int) ent->v->frame & 0x00FF))                               bits |= U_FRAME;
 727                 if ((baseline->effects & 0x00FF) != ((int) ent->v->effects & 0x00FF))                   bits |= U_EFFECTS;
 728                 if ((baseline->modelindex & 0x00FF) != ((int) ent->v->modelindex & 0x00FF))             bits |= U_MODEL;
 729
 730                 // LordHavoc: new stuff
 731                 if (baseline->alpha != alpha)                                                                                                   bits |= U_ALPHA;
 732                 if (baseline->scale != scale)                                                                                                   bits |= U_SCALE;
 733                 if (((int) baseline->effects & 0xFF00) != ((int) ent->v->effects & 0xFF00))             bits |= U_EFFECTS2;
 734                 if (baseline->glowsize != glowsize)                                                                                             bits |= U_GLOWSIZE;
 735                 if (baseline->glowcolor != glowcolor)                                                                                   bits |= U_GLOWCOLOR;
 736                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->frame & 0xFF00))                 bits |= U_FRAME2;
 737                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->modelindex & 0xFF00))            bits |= U_MODEL2;
 738
 739                 // update delta baseline
 740                 VectorCopy(ent->v->origin, ent->e->deltabaseline.origin);
 741                 VectorCopy(ent->v->angles, ent->e->deltabaseline.angles);
 742                 ent->e->deltabaseline.colormap = ent->v->colormap;
 743                 ent->e->deltabaseline.skin = ent->v->skin;
 744                 ent->e->deltabaseline.frame = ent->v->frame;
 745                 ent->e->deltabaseline.effects = ent->v->effects;
 746                 ent->e->deltabaseline.modelindex = ent->v->modelindex;
 747                 ent->e->deltabaseline.alpha = alpha;
 748                 ent->e->deltabaseline.scale = scale;
 749                 ent->e->deltabaseline.glowsize = glowsize;
 750                 ent->e->deltabaseline.glowcolor = glowcolor;
 751
 752                 // write the message
 753                 if (bits >= 16777216)
 754                         bits |= U_EXTEND2;
 755                 if (bits >= 65536)
 756                         bits |= U_EXTEND1;
 757                 if (bits >= 256)
 758                         bits |= U_MOREBITS;
 759                 bits |= U_SIGNAL;
 760
 761                 MSG_WriteByte (msg, bits);
 762                 if (bits & U_MOREBITS)
 763                         MSG_WriteByte (msg, bits>>8);
 764                 // LordHavoc: extend bytes have to be written here due to delta compression
 765                 if (bits & U_EXTEND1)
 766                         MSG_WriteByte (msg, bits>>16);
 767                 if (bits & U_EXTEND2)
 768                         MSG_WriteByte (msg, bits>>24);
 769
 770                 // LordHavoc: old stuff
 771                 if (bits & U_LONGENTITY)
 772                         MSG_WriteShort (msg,e);
 773                 else
 774                         MSG_WriteByte (msg,e);
 775                 if (bits & U_MODEL)             MSG_WriteByte (msg,     ent->v->modelindex);
 776                 if (bits & U_FRAME)             MSG_WriteByte (msg, ent->v->frame);
 777                 if (bits & U_COLORMAP)  MSG_WriteByte (msg, ent->v->colormap);
 778                 if (bits & U_SKIN)              MSG_WriteByte (msg, ent->v->skin);
 779                 if (bits & U_EFFECTS)   MSG_WriteByte (msg, ent->v->effects);
 780                 if (bits & U_ORIGIN1)   MSG_WriteDPCoord (msg, origin[0]);
 781                 if (bits & U_ANGLE1)    MSG_WriteAngle(msg, angles[0]);
 782                 if (bits & U_ORIGIN2)   MSG_WriteDPCoord (msg, origin[1]);
 783                 if (bits & U_ANGLE2)    MSG_WriteAngle(msg, angles[1]);
 784                 if (bits & U_ORIGIN3)   MSG_WriteDPCoord (msg, origin[2]);
 785                 if (bits & U_ANGLE3)    MSG_WriteAngle(msg, angles[2]);
 786
 787                 // LordHavoc: new stuff
 788                 if (bits & U_ALPHA)             MSG_WriteByte(msg, alpha);
 789                 if (bits & U_SCALE)             MSG_WriteByte(msg, scale);
 790                 if (bits & U_EFFECTS2)  MSG_WriteByte(msg, (int)ent->v->effects >> 8);
 791                 if (bits & U_GLOWSIZE)  MSG_WriteByte(msg, glowsize);
 792                 if (bits & U_GLOWCOLOR) MSG_WriteByte(msg, glowcolor);
 793                 if (bits & U_FRAME2)    MSG_WriteByte(msg, (int)ent->v->frame >> 8);
 794                 if (bits & U_MODEL2)    MSG_WriteByte(msg, (int)ent->v->modelindex >> 8);
 795         }
 796
 797         if (sv_cullentities_stats.integer)
 798                 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);
 799 }
 800 #else
 801 static int numsendentities;
 802 static entity_state_t sendentities[MAX_EDICTS];
 803 static entity_state_t *sendentitiesindex[MAX_EDICTS];
 804
 805 void SV_PrepareEntitiesForSending(void)
 806 {
 807         int e, i;
 808         edict_t *ent;
 809         entity_state_t cs;
 810         // send all entities that touch the pvs
 811         numsendentities = 0;
 812         sendentitiesindex[0] = NULL;
 813         for (e = 1, ent = NEXT_EDICT(sv.edicts);e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 814         {
 815                 sendentitiesindex[e] = NULL;
 816                 if (ent->e->free)
 817                         continue;
 818
 819                 ClearStateToDefault(&cs);
 820                 cs.active = true;
 821                 cs.number = e;
 822                 VectorCopy(ent->v->origin, cs.origin);
 823                 VectorCopy(ent->v->angles, cs.angles);
 824                 cs.flags = 0;
 825                 cs.effects = (int)ent->v->effects;
 826                 cs.colormap = (qbyte)ent->v->colormap;
 827                 cs.skin = (qbyte)ent->v->skin;
 828                 cs.frame = (qbyte)ent->v->frame;
 829                 cs.viewmodelforclient = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)->edict;
 830                 cs.exteriormodelforclient = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)->edict;
 831                 cs.nodrawtoclient = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)->edict;
 832                 cs.drawonlytoclient = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)->edict;
 833                 cs.tagentity = GETEDICTFIELDVALUE(ent, eval_tag_entity)->edict;
 834                 cs.tagindex = (qbyte)GETEDICTFIELDVALUE(ent, eval_tag_index)->_float;
 835                 i = (int)(GETEDICTFIELDVALUE(ent, eval_glow_size)->_float * 0.25f);
 836                 cs.glowsize = (qbyte)bound(0, i, 255);
 837                 if (GETEDICTFIELDVALUE(ent, eval_glow_trail)->_float)
 838                         cs.flags |= RENDER_GLOWTRAIL;
 839
 840                 cs.modelindex = 0;
 841                 i = (int)ent->v->modelindex;
 842                 if (i >= 1 && i < MAX_MODELS && *PR_GetString(ent->v->model))
 843                         cs.modelindex = i;
 844
 845
 846                 cs.alpha = 255;
 847                 i = (int)(GETEDICTFIELDVALUE(ent, eval_alpha)->_float * 255.0f);
 848                 if (i)
 849                         cs.alpha = (qbyte)bound(0, i, 255);
 850                 // halflife
 851                 i = (int)(GETEDICTFIELDVALUE(ent, eval_renderamt)->_float);
 852                 if (i)
 853                         cs.alpha = (qbyte)bound(0, i, 255);
 854
 855                 cs.scale = 16;
 856                 i = (int)(GETEDICTFIELDVALUE(ent, eval_scale)->_float * 16.0f);
 857                 if (i)
 858                         cs.scale = (qbyte)bound(0, i, 255);
 859
 860                 cs.glowcolor = 254;
 861                 i = (int)(GETEDICTFIELDVALUE(ent, eval_glow_color)->_float);
 862                 if (i)
 863                         cs.glowcolor = i;
 864
 865                 if (GETEDICTFIELDVALUE(ent, eval_fullbright)->_float)
 866                         cs.effects |= EF_FULLBRIGHT;
 867
 868                 if (ent->v->movetype == MOVETYPE_STEP)
 869                         cs.flags |= RENDER_STEP;
 870                 if ((cs.effects & EF_LOWPRECISION) && cs.origin[0] >= -32768 && cs.origin[1] >= -32768 && cs.origin[2] >= -32768 && cs.origin[0] <= 32767 && cs.origin[1] <= 32767 && cs.origin[2] <= 32767)
 871                         cs.flags |= RENDER_LOWPRECISION;
 872                 if (ent->v->colormap >= 1024)
 873                         cs.flags |= RENDER_COLORMAPPED;
 874                 if (cs.viewmodelforclient)
 875                         cs.flags |= RENDER_VIEWMODEL; // show relative to the view
 876
 877                 cs.specialvisibilityradius = 0;
 878                 if (cs.glowsize)
 879                         cs.specialvisibilityradius = max(cs.specialvisibilityradius, cs.glowsize * 4);
 880                 if (cs.flags & RENDER_GLOWTRAIL)
 881                         cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 882                 if (cs.effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
 883                 {
 884                         if (cs.effects & EF_BRIGHTFIELD)
 885                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 80);
 886                         if (cs.effects & EF_MUZZLEFLASH)
 887                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 888                         if (cs.effects & EF_BRIGHTLIGHT)
 889                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 400);
 890                         if (cs.effects & EF_DIMLIGHT)
 891                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 892                         if (cs.effects & EF_RED)
 893                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 894                         if (cs.effects & EF_BLUE)
 895                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 896                         if (cs.effects & EF_FLAME)
 897                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 250);
 898                         if (cs.effects & EF_STARDUST)
 899                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 900                 }
 901
 902                 if (numsendentities >= MAX_EDICTS)
 903                         continue;
 904                 // we can omit invisible entities with no effects that are not clients
 905                 // LordHavoc: this could kill tags attached to an invisible entity, I
 906                 // just hope we never have to support that case
 907                 if (cs.number > svs.maxclients && ((cs.effects & EF_NODRAW) || (!cs.modelindex && !cs.specialvisibilityradius)))
 908                         continue;
 909                 sendentitiesindex[e] = sendentities + numsendentities;
 910                 sendentities[numsendentities++] = cs;
 911         }
 912 }
 913
 914 static int sententitiesmark = 0;
 915 static int sententities[MAX_EDICTS];
 916 static int sententitiesconsideration[MAX_EDICTS];
 917 static int sv_writeentitiestoclient_culled_pvs;
 918 static int sv_writeentitiestoclient_culled_portal;
 919 static int sv_writeentitiestoclient_culled_trace;
 920 static int sv_writeentitiestoclient_visibleentities;
 921 static int sv_writeentitiestoclient_totalentities;
 922 static entity_frame_t sv_writeentitiestoclient_entityframe;
 923 static int sv_writeentitiestoclient_clentnum;
 924 static qbyte *sv_writeentitiestoclient_pvs;
 925 static vec3_t sv_writeentitiestoclient_testeye;
 926 static client_t *sv_writeentitiestoclient_client;
 927
 928 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
 929 {
 930         vec3_t entmins, entmaxs, lightmins, lightmaxs, testorigin;
 931         model_t *model;
 932         trace_t trace;
 933         if (sententitiesconsideration[s->number] == sententitiesmark)
 934                 return;
 935         sententitiesconsideration[s->number] = sententitiesmark;
 936         // viewmodels don't have visibility checking
 937         if (s->viewmodelforclient)
 938         {
 939                 if (s->viewmodelforclient != sv_writeentitiestoclient_clentnum)
 940                         return;
 941         }
 942         // never reject player
 943         else if (s->number != sv_writeentitiestoclient_clentnum)
 944         {
 945                 // check various rejection conditions
 946                 if (s->nodrawtoclient == sv_writeentitiestoclient_clentnum)
 947                         return;
 948                 if (s->drawonlytoclient && s->drawonlytoclient != sv_writeentitiestoclient_clentnum)
 949                         return;
 950                 if (s->effects & EF_NODRAW)
 951                         return;
 952                 // LordHavoc: only send entities with a model or important effects
 953                 if (!s->modelindex && s->specialvisibilityradius == 0)
 954                         return;
 955                 if (s->tagentity)
 956                 {
 957                         // tag attached entities simply check their parent
 958                         if (!sendentitiesindex[s->tagentity])
 959                                 return;
 960                         SV_MarkWriteEntityStateToClient(sendentitiesindex[s->tagentity]);
 961                         if (sententities[s->tagentity] != sententitiesmark)
 962                                 return;
 963                 }
 964                 // always send world submodels, they don't generate much traffic
 965                 else if ((model = sv.models[s->modelindex]) == NULL || model->name[0] != '*')
 966                 {
 967                         Mod_CheckLoaded(model);
 968                         // entity has survived every check so far, check if visible
 969                         // enlarged box to account for prediction (not that there is
 970                         // any currently, but still helps the 'run into a room and
 971                         // watch items pop up' problem)
 972                         entmins[0] = s->origin[0] - 32.0f;
 973                         entmins[1] = s->origin[1] - 32.0f;
 974                         entmins[2] = s->origin[2] - 32.0f;
 975                         entmaxs[0] = s->origin[0] + 32.0f;
 976                         entmaxs[1] = s->origin[1] + 32.0f;
 977                         entmaxs[2] = s->origin[2] + 32.0f;
 978                         // using the model's bounding box to ensure things are visible regardless of their physics box
 979                         if (model)
 980                         {
 981                                 if (s->angles[0] || s->angles[2]) // pitch and roll
 982                                 {
 983                                         VectorAdd(entmins, model->rotatedmins, entmins);
 984                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
 985                                 }
 986                                 else if (s->angles[1])
 987                                 {
 988                                         VectorAdd(entmins, model->yawmins, entmins);
 989                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
 990                                 }
 991                                 else
 992                                 {
 993                                         VectorAdd(entmins, model->normalmins, entmins);
 994                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
 995                                 }
 996                         }
 997                         lightmins[0] = min(entmins[0], s->origin[0] - s->specialvisibilityradius);
 998                         lightmins[1] = min(entmins[1], s->origin[1] - s->specialvisibilityradius);
 999                         lightmins[2] = min(entmins[2], s->origin[2] - s->specialvisibilityradius);
1000                         lightmaxs[0] = min(entmaxs[0], s->origin[0] + s->specialvisibilityradius);
1001                         lightmaxs[1] = min(entmaxs[1], s->origin[1] + s->specialvisibilityradius);
1002                         lightmaxs[2] = min(entmaxs[2], s->origin[2] + s->specialvisibilityradius);
1003                         sv_writeentitiestoclient_totalentities++;
1004                         // if not touching a visible leaf
1005                         if (sv_cullentities_pvs.integer && !SV_BoxTouchingPVS(sv_writeentitiestoclient_pvs, lightmins, lightmaxs, sv.worldmodel->brushq1.nodes))
1006                         {
1007                                 sv_writeentitiestoclient_culled_pvs++;
1008                                 return;
1009                         }
1010                         // or not visible through the portals
1011                         if (sv_cullentities_portal.integer && !Portal_CheckBox(sv.worldmodel, sv_writeentitiestoclient_testeye, lightmins, lightmaxs))
1012                         {
1013                                 sv_writeentitiestoclient_culled_portal++;
1014                                 return;
1015                         }
1016                         // or not seen by random tracelines
1017                         if (sv_cullentities_trace.integer)
1018                         {
1019                                 // LordHavoc: test center first
1020                                 testorigin[0] = (entmins[0] + entmaxs[0]) * 0.5f;
1021                                 testorigin[1] = (entmins[1] + entmaxs[1]) * 0.5f;
1022                                 testorigin[2] = (entmins[2] + entmaxs[2]) * 0.5f;
1023                                 trace = SV_Move(sv_writeentitiestoclient_testeye, vec3_origin, vec3_origin, testorigin, MOVE_NOMONSTERS, NULL);
1024                                 if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
1025                                         sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
1026                                 else
1027                                 {
1028                                         // LordHavoc: test random offsets, to maximize chance of detection
1029                                         testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
1030                                         testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
1031                                         testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
1032                                         trace = SV_Move(sv_writeentitiestoclient_testeye, vec3_origin, vec3_origin, testorigin, MOVE_NOMONSTERS, NULL);
1033                                         if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
1034                                                 sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
1035                                         else
1036                                         {
1037                                                 if (s->specialvisibilityradius)
1038                                                 {
1039                                                         // LordHavoc: test random offsets, to maximize chance of detection
1040                                                         testorigin[0] = lhrandom(lightmins[0], lightmaxs[0]);
1041                                                         testorigin[1] = lhrandom(lightmins[1], lightmaxs[1]);
1042                                                         testorigin[2] = lhrandom(lightmins[2], lightmaxs[2]);
1043                                                         trace = SV_Move(sv_writeentitiestoclient_testeye, vec3_origin, vec3_origin, testorigin, MOVE_NOMONSTERS, NULL);
1044                                                         if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
1045                                                                 sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
1046                                                 }
1047                                         }
1048                                 }
1049                                 if (realtime > sv_writeentitiestoclient_client->visibletime[s->number])
1050                                 {
1051                                         sv_writeentitiestoclient_culled_trace++;
1052                                         return;
1053                                 }
1054                         }
1055                         sv_writeentitiestoclient_visibleentities++;
1056                 }
1057         }
1058         // this just marks it for sending
1059         // FIXME: it would be more efficient to send here, but the entity
1060         // compressor isn't that flexible
1061         sententities[s->number] = sententitiesmark;
1062 }
1063
1064 void SV_WriteEntitiesToClient(client_t *client, edict_t *clent, sizebuf_t *msg)
1065 {
1066         int i;
1067         vec3_t testorigin;
1068         entity_state_t *s;
1069
1070         sv_writeentitiestoclient_client = client;
1071
1072         sv_writeentitiestoclient_culled_pvs = 0;
1073         sv_writeentitiestoclient_culled_portal = 0;
1074         sv_writeentitiestoclient_culled_trace = 0;
1075         sv_writeentitiestoclient_visibleentities = 0;
1076         sv_writeentitiestoclient_totalentities = 0;
1077
1078         Mod_CheckLoaded(sv.worldmodel);
1079
1080 // find the client's PVS
1081         // the real place being tested from
1082         VectorAdd(clent->v->origin, clent->v->view_ofs, sv_writeentitiestoclient_testeye);
1083         sv_writeentitiestoclient_pvs = SV_FatPVS(sv_writeentitiestoclient_testeye);
1084
1085         sv_writeentitiestoclient_clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1086
1087         sententitiesmark++;
1088
1089         // the place being reported (to consider the fact the client still
1090         // applies the view_ofs[2], so we have to only send the fractional part
1091         // of view_ofs[2], undoing what the client will redo)
1092         VectorCopy(sv_writeentitiestoclient_testeye, testorigin);
1093         i = (int) clent->v->view_ofs[2] & 255;
1094         if (i >= 128)
1095                 i -= 256;
1096         testorigin[2] -= (float) i;
1097
1098         for (i = 0;i < numsendentities;i++)
1099                 SV_MarkWriteEntityStateToClient(sendentities + i);
1100
1101         EntityFrame_Clear(&sv_writeentitiestoclient_entityframe, testorigin, ++client->entityframenumber);
1102         for (i = 0;i < numsendentities;i++)
1103         {
1104                 s = sendentities + i;
1105                 if (sententities[s->number] == sententitiesmark)
1106                 {
1107                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv_writeentitiestoclient_clentnum)
1108                         {
1109                                 s->flags |= RENDER_EXTERIORMODEL;
1110                                 EntityFrame_AddEntity(&sv_writeentitiestoclient_entityframe, s);
1111                                 s->flags &= ~RENDER_EXTERIORMODEL;
1112                         }
1113                         else
1114                                 EntityFrame_AddEntity(&sv_writeentitiestoclient_entityframe, s);
1115                 }
1116         }
1117         EntityFrame_Write(&client->entitydatabase, &sv_writeentitiestoclient_entityframe, msg);
1118
1119         if (sv_cullentities_stats.integer)
1120                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d portal %d trace\n", client->name, sv_writeentitiestoclient_totalentities, sv_writeentitiestoclient_visibleentities, sv_writeentitiestoclient_culled_pvs + sv_writeentitiestoclient_culled_portal + sv_writeentitiestoclient_culled_trace, sv_writeentitiestoclient_culled_pvs, sv_writeentitiestoclient_culled_portal, sv_writeentitiestoclient_culled_trace);
1121 }
1122 #endif
1123
1124 /*
1125 =============
1126 SV_CleanupEnts
1127
1128 =============
1129 */
1130 void SV_CleanupEnts (void)
1131 {
1132         int             e;
1133         edict_t *ent;
1134
1135         ent = NEXT_EDICT(sv.edicts);
1136         for (e=1 ; e<sv.num_edicts ; e++, ent = NEXT_EDICT(ent))
1137                 ent->v->effects = (int)ent->v->effects & ~EF_MUZZLEFLASH;
1138 }
1139
1140 /*
1141 ==================
1142 SV_WriteClientdataToMessage
1143
1144 ==================
1145 */
1146 void SV_WriteClientdataToMessage (edict_t *ent, sizebuf_t *msg)
1147 {
1148         int             bits;
1149         int             i;
1150         edict_t *other;
1151         int             items;
1152         eval_t  *val;
1153         vec3_t  punchvector;
1154         qbyte   viewzoom;
1155
1156 //
1157 // send a damage message
1158 //
1159         if (ent->v->dmg_take || ent->v->dmg_save)
1160         {
1161                 other = PROG_TO_EDICT(ent->v->dmg_inflictor);
1162                 MSG_WriteByte (msg, svc_damage);
1163                 MSG_WriteByte (msg, ent->v->dmg_save);
1164                 MSG_WriteByte (msg, ent->v->dmg_take);
1165                 for (i=0 ; i<3 ; i++)
1166                         MSG_WriteDPCoord (msg, other->v->origin[i] + 0.5*(other->v->mins[i] + other->v->maxs[i]));
1167
1168                 ent->v->dmg_take = 0;
1169                 ent->v->dmg_save = 0;
1170         }
1171
1172 //
1173 // send the current viewpos offset from the view entity
1174 //
1175         SV_SetIdealPitch ();            // how much to look up / down ideally
1176
1177 // a fixangle might get lost in a dropped packet.  Oh well.
1178         if ( ent->v->fixangle )
1179         {
1180                 MSG_WriteByte (msg, svc_setangle);
1181                 for (i=0 ; i < 3 ; i++)
1182                         MSG_WriteAngle (msg, ent->v->angles[i] );
1183                 ent->v->fixangle = 0;
1184         }
1185
1186         bits = 0;
1187
1188         if (ent->v->view_ofs[2] != DEFAULT_VIEWHEIGHT)
1189                 bits |= SU_VIEWHEIGHT;
1190
1191         if (ent->v->idealpitch)
1192                 bits |= SU_IDEALPITCH;
1193
1194 // stuff the sigil bits into the high bits of items for sbar, or else
1195 // mix in items2
1196         val = GETEDICTFIELDVALUE(ent, eval_items2);
1197
1198         if (val)
1199                 items = (int)ent->v->items | ((int)val->_float << 23);
1200         else
1201                 items = (int)ent->v->items | ((int)pr_global_struct->serverflags << 28);
1202
1203         bits |= SU_ITEMS;
1204
1205         if ( (int)ent->v->flags & FL_ONGROUND)
1206                 bits |= SU_ONGROUND;
1207
1208         if ( ent->v->waterlevel >= 2)
1209                 bits |= SU_INWATER;
1210
1211         // dpprotocol
1212         VectorClear(punchvector);
1213         if ((val = GETEDICTFIELDVALUE(ent, eval_punchvector)))
1214                 VectorCopy(val->vector, punchvector);
1215
1216         i = 255;
1217         if ((val = GETEDICTFIELDVALUE(ent, eval_viewzoom)))
1218         {
1219                 i = val->_float * 255.0f;
1220                 if (i == 0)
1221                         i = 255;
1222                 else
1223                         i = bound(0, i, 255);
1224         }
1225         viewzoom = i;
1226
1227         if (viewzoom != 255)
1228                 bits |= SU_VIEWZOOM;
1229
1230         for (i=0 ; i<3 ; i++)
1231         {
1232                 if (ent->v->punchangle[i])
1233                         bits |= (SU_PUNCH1<<i);
1234                 if (punchvector[i]) // dpprotocol
1235                         bits |= (SU_PUNCHVEC1<<i); // dpprotocol
1236                 if (ent->v->velocity[i])
1237                         bits |= (SU_VELOCITY1<<i);
1238         }
1239
1240         if (ent->v->weaponframe)
1241                 bits |= SU_WEAPONFRAME;
1242
1243         if (ent->v->armorvalue)
1244                 bits |= SU_ARMOR;
1245
1246         bits |= SU_WEAPON;
1247
1248         if (bits >= 65536)
1249                 bits |= SU_EXTEND1;
1250         if (bits >= 16777216)
1251                 bits |= SU_EXTEND2;
1252
1253 // send the data
1254
1255         MSG_WriteByte (msg, svc_clientdata);
1256         MSG_WriteShort (msg, bits);
1257         if (bits & SU_EXTEND1)
1258                 MSG_WriteByte(msg, bits >> 16);
1259         if (bits & SU_EXTEND2)
1260                 MSG_WriteByte(msg, bits >> 24);
1261
1262         if (bits & SU_VIEWHEIGHT)
1263                 MSG_WriteChar (msg, ent->v->view_ofs[2]);
1264
1265         if (bits & SU_IDEALPITCH)
1266                 MSG_WriteChar (msg, ent->v->idealpitch);
1267
1268         for (i=0 ; i<3 ; i++)
1269         {
1270                 if (bits & (SU_PUNCH1<<i))
1271                         MSG_WritePreciseAngle(msg, ent->v->punchangle[i]); // dpprotocol
1272                 if (bits & (SU_PUNCHVEC1<<i)) // dpprotocol
1273                         MSG_WriteDPCoord(msg, punchvector[i]); // dpprotocol
1274                 if (bits & (SU_VELOCITY1<<i))
1275                         MSG_WriteChar (msg, ent->v->velocity[i]/16);
1276         }
1277
1278 // [always sent]        if (bits & SU_ITEMS)
1279         MSG_WriteLong (msg, items);
1280
1281         if (bits & SU_WEAPONFRAME)
1282                 MSG_WriteByte (msg, ent->v->weaponframe);
1283         if (bits & SU_ARMOR)
1284                 MSG_WriteByte (msg, ent->v->armorvalue);
1285         if (bits & SU_WEAPON)
1286                 MSG_WriteByte (msg, SV_ModelIndex(PR_GetString(ent->v->weaponmodel)));
1287
1288         MSG_WriteShort (msg, ent->v->health);
1289         MSG_WriteByte (msg, ent->v->currentammo);
1290         MSG_WriteByte (msg, ent->v->ammo_shells);
1291         MSG_WriteByte (msg, ent->v->ammo_nails);
1292         MSG_WriteByte (msg, ent->v->ammo_rockets);
1293         MSG_WriteByte (msg, ent->v->ammo_cells);
1294
1295         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1296         {
1297                 for(i=0;i<32;i++)
1298                 {
1299                         if ( ((int)ent->v->weapon) & (1<<i) )
1300                         {
1301                                 MSG_WriteByte (msg, i);
1302                                 break;
1303                         }
1304                 }
1305         }
1306         else
1307         {
1308                 MSG_WriteByte (msg, ent->v->weapon);
1309         }
1310
1311         if (bits & SU_VIEWZOOM)
1312                 MSG_WriteByte (msg, viewzoom);
1313 }
1314
1315 /*
1316 =======================
1317 SV_SendClientDatagram
1318 =======================
1319 */
1320 static qbyte sv_sendclientdatagram_buf[MAX_DATAGRAM]; // FIXME?
1321 qboolean SV_SendClientDatagram (client_t *client)
1322 {
1323         sizebuf_t       msg;
1324
1325         msg.data = sv_sendclientdatagram_buf;
1326         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1327         msg.cursize = 0;
1328
1329         MSG_WriteByte (&msg, svc_time);
1330         MSG_WriteFloat (&msg, sv.time);
1331
1332         // add the client specific data to the datagram
1333         SV_WriteClientdataToMessage (client->edict, &msg);
1334
1335         SV_WriteEntitiesToClient (client, client->edict, &msg);
1336
1337         // copy the server datagram if there is space
1338         if (msg.cursize + sv.datagram.cursize < msg.maxsize)
1339                 SZ_Write (&msg, sv.datagram.data, sv.datagram.cursize);
1340
1341 // send the datagram
1342         if (NetConn_SendUnreliableMessage (client->netconnection, &msg) == -1)
1343         {
1344                 SV_DropClient (true);// if the message couldn't send, kick off
1345                 return false;
1346         }
1347
1348         return true;
1349 }
1350
1351 /*
1352 =======================
1353 SV_UpdateToReliableMessages
1354 =======================
1355 */
1356 void SV_UpdateToReliableMessages (void)
1357 {
1358         int i, j;
1359         client_t *client;
1360         eval_t *val;
1361         char *s;
1362
1363 // check for changes to be sent over the reliable streams
1364         for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1365         {
1366                 // only update the client fields if they've spawned in
1367                 if (host_client->spawned)
1368                 {
1369                         // update the host_client fields we care about according to the entity fields
1370                         sv_player = host_client->edict;
1371                         s = PR_GetString(sv_player->v->netname);
1372                         if (s != host_client->name)
1373                         {
1374                                 if (s == NULL)
1375                                         s = "";
1376                                 // point the string back at host_client->name to keep it safe
1377                                 strncpy(host_client->name, s, sizeof(host_client->name) - 1);
1378                                 sv_player->v->netname = PR_SetString(host_client->name);
1379                         }
1380                         if ((val = GETEDICTFIELDVALUE(sv_player, eval_clientcolors)) && host_client->colors != val->_float)
1381                                 host_client->colors = val->_float;
1382                         host_client->frags = sv_player->v->frags;
1383                         if (gamemode == GAME_NEHAHRA)
1384                                 if ((val = GETEDICTFIELDVALUE(sv_player, eval_pmodel)) && host_client->pmodel != val->_float)
1385                                         host_client->pmodel = val->_float;
1386
1387                         // if the fields changed, send messages about the changes
1388                         if (strcmp(host_client->old_name, host_client->name))
1389                         {
1390                                 strcpy(host_client->old_name, host_client->name);
1391                                 for (j=0, client = svs.clients ; j<svs.maxclients ; j++, client++)
1392                                 {
1393                                         if (!client->active || !client->spawned)
1394                                                 continue;
1395                                         MSG_WriteByte (&client->message, svc_updatename);
1396                                         MSG_WriteByte (&client->message, i);
1397                                         MSG_WriteString (&client->message, host_client->name);
1398                                 }
1399                         }
1400                         if (host_client->old_colors != host_client->colors)
1401                         {
1402                                 host_client->old_colors = host_client->colors;
1403                                 for (j=0, client = svs.clients ; j<svs.maxclients ; j++, client++)
1404                                 {
1405                                         if (!client->active || !client->spawned)
1406                                                 continue;
1407                                         MSG_WriteByte (&client->message, svc_updatecolors);
1408                                         MSG_WriteByte (&client->message, i);
1409                                         MSG_WriteByte (&client->message, host_client->colors);
1410                                 }
1411                         }
1412                         if (host_client->old_frags != host_client->frags)
1413                         {
1414                                 host_client->old_frags = host_client->frags;
1415                                 for (j=0, client = svs.clients ; j<svs.maxclients ; j++, client++)
1416                                 {
1417                                         if (!client->active || !client->spawned)
1418                                                 continue;
1419                                         MSG_WriteByte (&client->message, svc_updatefrags);
1420                                         MSG_WriteByte (&client->message, i);
1421                                         MSG_WriteShort (&client->message, host_client->frags);
1422                                 }
1423                         }
1424                 }
1425         }
1426
1427         for (j=0, client = svs.clients ; j<svs.maxclients ; j++, client++)
1428         {
1429                 if (!client->active)
1430                         continue;
1431                 SZ_Write (&client->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1432         }
1433
1434         SZ_Clear (&sv.reliable_datagram);
1435 }
1436
1437
1438 /*
1439 =======================
1440 SV_SendNop
1441
1442 Send a nop message without trashing or sending the accumulated client
1443 message buffer
1444 =======================
1445 */
1446 void SV_SendNop (client_t *client)
1447 {
1448         sizebuf_t       msg;
1449         qbyte           buf[4];
1450
1451         msg.data = buf;
1452         msg.maxsize = sizeof(buf);
1453         msg.cursize = 0;
1454
1455         MSG_WriteChar (&msg, svc_nop);
1456
1457         if (NetConn_SendUnreliableMessage (client->netconnection, &msg) == -1)
1458                 SV_DropClient (true);   // if the message couldn't send, kick off
1459         client->last_message = realtime;
1460 }
1461
1462 /*
1463 =======================
1464 SV_SendClientMessages
1465 =======================
1466 */
1467 void SV_SendClientMessages (void)
1468 {
1469         int i, prepared = false;
1470
1471 // update frags, names, etc
1472         SV_UpdateToReliableMessages();
1473
1474 // build individual updates
1475         for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1476         {
1477                 if (!host_client->active)
1478                         continue;
1479
1480                 if (host_client->deadsocket)
1481                 {
1482                         SV_DropClient (true);   // if the message couldn't send, kick off
1483                         continue;
1484                 }
1485
1486                 if (host_client->spawned)
1487                 {
1488                         if (!prepared)
1489                         {
1490                                 prepared = true;
1491                                 // only prepare entities once per frame
1492                                 SV_PrepareEntitiesForSending();
1493                         }
1494                         if (!SV_SendClientDatagram (host_client))
1495                                 continue;
1496                 }
1497                 else
1498                 {
1499                 // the player isn't totally in the game yet
1500                 // send small keepalive messages if too much time has passed
1501                 // send a full message when the next signon stage has been requested
1502                 // some other message data (name changes, etc) may accumulate
1503                 // between signon stages
1504                         if (!host_client->sendsignon)
1505                         {
1506                                 if (realtime - host_client->last_message > 5)
1507                                         SV_SendNop (host_client);
1508                                 continue;       // don't send out non-signon messages
1509                         }
1510                 }
1511
1512                 // check for an overflowed message.  Should only happen
1513                 // on a very fucked up connection that backs up a lot, then
1514                 // changes level
1515                 if (host_client->message.overflowed)
1516                 {
1517                         SV_DropClient (true); // overflowed
1518                         host_client->message.overflowed = false;
1519                         continue;
1520                 }
1521
1522                 if (host_client->message.cursize || host_client->dropasap)
1523                 {
1524                         if (!NetConn_CanSendMessage (host_client->netconnection))
1525                                 continue;
1526
1527                         if (host_client->dropasap)
1528                                 SV_DropClient (false);  // went to another level
1529                         else
1530                         {
1531                                 if (NetConn_SendReliableMessage (host_client->netconnection, &host_client->message) == -1)
1532                                         SV_DropClient (true);   // if the message couldn't send, kick off
1533                                 SZ_Clear (&host_client->message);
1534                                 host_client->last_message = realtime;
1535                                 host_client->sendsignon = false;
1536                         }
1537                 }
1538         }
1539
1540 // clear muzzle flashes
1541         SV_CleanupEnts();
1542 }
1543
1544
1545 /*
1546 ==============================================================================
1547
1548 SERVER SPAWNING
1549
1550 ==============================================================================
1551 */
1552
1553 /*
1554 ================
1555 SV_ModelIndex
1556
1557 ================
1558 */
1559 int SV_ModelIndex (const char *name)
1560 {
1561         int i;
1562
1563         if (!name || !name[0])
1564                 return 0;
1565
1566         for (i=0 ; i<MAX_MODELS && sv.model_precache[i] ; i++)
1567                 if (!strcmp(sv.model_precache[i], name))
1568                         return i;
1569         if (i==MAX_MODELS || !sv.model_precache[i])
1570                 Host_Error ("SV_ModelIndex: model %s not precached", name);
1571         return i;
1572 }
1573
1574 #ifdef SV_QUAKEENTITIES
1575 /*
1576 ================
1577 SV_CreateBaseline
1578
1579 ================
1580 */
1581 void SV_CreateBaseline (void)
1582 {
1583         int i, entnum, large;
1584         edict_t *svent;
1585
1586         // LordHavoc: clear *all* states (note just active ones)
1587         for (entnum = 0;entnum < sv.max_edicts;entnum++)
1588         {
1589                 // get the current server version
1590                 svent = EDICT_NUM(entnum);
1591
1592                 // LordHavoc: always clear state values, whether the entity is in use or not
1593                 ClearStateToDefault(&svent->e->baseline);
1594
1595                 if (svent->e->free)
1596                         continue;
1597                 if (entnum > svs.maxclients && !svent->v->modelindex)
1598                         continue;
1599
1600                 // create entity baseline
1601                 VectorCopy (svent->v->origin, svent->e->baseline.origin);
1602                 VectorCopy (svent->v->angles, svent->e->baseline.angles);
1603                 svent->e->baseline.frame = svent->v->frame;
1604                 svent->e->baseline.skin = svent->v->skin;
1605                 if (entnum > 0 && entnum <= svs.maxclients)
1606                 {
1607                         svent->e->baseline.colormap = entnum;
1608                         svent->e->baseline.modelindex = SV_ModelIndex("progs/player.mdl");
1609                 }
1610                 else
1611                 {
1612                         svent->e->baseline.colormap = 0;
1613                         svent->e->baseline.modelindex = svent->v->modelindex;
1614                 }
1615
1616                 large = false;
1617                 if (svent->e->baseline.modelindex & 0xFF00 || svent->e->baseline.frame & 0xFF00)
1618                         large = true;
1619
1620                 // add to the message
1621                 if (large)
1622                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
1623                 else
1624                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
1625                 MSG_WriteShort (&sv.signon, entnum);
1626
1627                 if (large)
1628                 {
1629                         MSG_WriteShort (&sv.signon, svent->e->baseline.modelindex);
1630                         MSG_WriteShort (&sv.signon, svent->e->baseline.frame);
1631                 }
1632                 else
1633                 {
1634                         MSG_WriteByte (&sv.signon, svent->e->baseline.modelindex);
1635                         MSG_WriteByte (&sv.signon, svent->e->baseline.frame);
1636                 }
1637                 MSG_WriteByte (&sv.signon, svent->e->baseline.colormap);
1638                 MSG_WriteByte (&sv.signon, svent->e->baseline.skin);
1639                 for (i=0 ; i<3 ; i++)
1640                 {
1641                         MSG_WriteDPCoord(&sv.signon, svent->e->baseline.origin[i]);
1642                         MSG_WriteAngle(&sv.signon, svent->e->baseline.angles[i]);
1643                 }
1644         }
1645 }
1646 #endif
1647
1648
1649 /*
1650 ================
1651 SV_SendReconnect
1652
1653 Tell all the clients that the server is changing levels
1654 ================
1655 */
1656 void SV_SendReconnect (void)
1657 {
1658         char    data[128];
1659         sizebuf_t       msg;
1660
1661         msg.data = data;
1662         msg.cursize = 0;
1663         msg.maxsize = sizeof(data);
1664
1665         MSG_WriteChar (&msg, svc_stufftext);
1666         MSG_WriteString (&msg, "reconnect\n");
1667         NetConn_SendToAll (&msg, 5);
1668
1669         if (cls.state != ca_dedicated)
1670                 Cmd_ExecuteString ("reconnect\n", src_command);
1671 }
1672
1673
1674 /*
1675 ================
1676 SV_SaveSpawnparms
1677
1678 Grabs the current state of each client for saving across the
1679 transition to another level
1680 ================
1681 */
1682 void SV_SaveSpawnparms (void)
1683 {
1684         int             i, j;
1685
1686         svs.serverflags = pr_global_struct->serverflags;
1687
1688         for (i=0, host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1689         {
1690                 if (!host_client->active)
1691                         continue;
1692
1693         // call the progs to get default spawn parms for the new client
1694                 pr_global_struct->self = EDICT_TO_PROG(host_client->edict);
1695                 PR_ExecuteProgram (pr_global_struct->SetChangeParms, "QC function SetChangeParms is missing");
1696                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
1697                         host_client->spawn_parms[j] = (&pr_global_struct->parm1)[j];
1698         }
1699 }
1700
1701 void SV_IncreaseEdicts(void)
1702 {
1703         int i;
1704         edict_t *ent;
1705         int oldmax_edicts = sv.max_edicts;
1706         void *oldedictsengineprivate = sv.edictsengineprivate;
1707         void *oldedictsfields = sv.edictsfields;
1708         void *oldmoved_edicts = sv.moved_edicts;
1709
1710         if (sv.max_edicts >= MAX_EDICTS)
1711                 return;
1712
1713         // links don't survive the transition, so unlink everything
1714         for (i = 0, ent = sv.edicts;i < sv.max_edicts;i++, ent++)
1715         {
1716                 if (!ent->e->free)
1717                         SV_UnlinkEdict(sv.edicts + i);
1718                 memset(&ent->e->areagrid, 0, sizeof(ent->e->areagrid));
1719         }
1720         SV_ClearWorld();
1721
1722         sv.max_edicts   = min(sv.max_edicts + 32, MAX_EDICTS);
1723         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1724         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1725         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1726
1727         memcpy(sv.edictsengineprivate, oldedictsengineprivate, oldmax_edicts * sizeof(edict_engineprivate_t));
1728         memcpy(sv.edictsfields, oldedictsfields, oldmax_edicts * pr_edict_size);
1729
1730         for (i = 0, ent = sv.edicts;i < sv.max_edicts;i++, ent++)
1731         {
1732                 ent->e = sv.edictsengineprivate + i;
1733                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1734                 // link every entity except world
1735                 if (!ent->e->free)
1736                         SV_LinkEdict(ent, false);
1737         }
1738
1739         Mem_Free(oldedictsengineprivate);
1740         Mem_Free(oldedictsfields);
1741         Mem_Free(oldmoved_edicts);
1742 }
1743
1744 /*
1745 ================
1746 SV_SpawnServer
1747
1748 This is called at the start of each level
1749 ================
1750 */
1751 extern float            scr_centertime_off;
1752
1753 void SV_SpawnServer (const char *server)
1754 {
1755         edict_t *ent;
1756         int i;
1757         qbyte *entities;
1758
1759         // let's not have any servers with no name
1760         if (hostname.string[0] == 0)
1761                 Cvar_Set ("hostname", "UNNAMED");
1762         scr_centertime_off = 0;
1763
1764         Con_DPrintf ("SpawnServer: %s\n",server);
1765         svs.changelevel_issued = false;         // now safe to issue another
1766
1767 //
1768 // tell all connected clients that we are going to a new level
1769 //
1770         if (sv.active)
1771                 SV_SendReconnect ();
1772         else
1773                 NetConn_OpenServerPorts(svs.maxclients > 1);
1774
1775 //
1776 // make cvars consistant
1777 //
1778         if (coop.integer)
1779                 Cvar_SetValue ("deathmatch", 0);
1780         current_skill = bound(0, (int)(skill.value + 0.5), 3);
1781
1782         Cvar_SetValue ("skill", (float)current_skill);
1783
1784 //
1785 // set up the new server
1786 //
1787         Host_ClearMemory ();
1788
1789         memset (&sv, 0, sizeof(sv));
1790
1791         strcpy (sv.name, server);
1792
1793 // load progs to get entity field count
1794         PR_LoadProgs ();
1795
1796 // allocate server memory
1797         // start out with just enough room for clients and a reasonable estimate of entities
1798         sv.max_edicts = ((svs.maxclients + 128) + 31) & ~31;
1799         sv.max_edicts = min(sv.max_edicts, MAX_EDICTS);
1800
1801         // clear the edict memory pool
1802         Mem_EmptyPool(sv_edicts_mempool);
1803         // edict_t structures (hidden from progs)
1804         sv.edicts = Mem_Alloc(sv_edicts_mempool, MAX_EDICTS * sizeof(edict_t));
1805         // engine private structures (hidden from progs)
1806         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1807         // progs fields, often accessed by server
1808         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1809         // used by PushMove to move back pushed entities
1810         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1811         for (i = 0;i < sv.max_edicts;i++)
1812         {
1813                 ent = sv.edicts + i;
1814                 ent->e = sv.edictsengineprivate + i;
1815                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1816         }
1817
1818         sv.datagram.maxsize = sizeof(sv.datagram_buf);
1819         sv.datagram.cursize = 0;
1820         sv.datagram.data = sv.datagram_buf;
1821
1822         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
1823         sv.reliable_datagram.cursize = 0;
1824         sv.reliable_datagram.data = sv.reliable_datagram_buf;
1825
1826         sv.signon.maxsize = sizeof(sv.signon_buf);
1827         sv.signon.cursize = 0;
1828         sv.signon.data = sv.signon_buf;
1829
1830 // leave slots at start for clients only
1831         sv.num_edicts = svs.maxclients+1;
1832
1833         sv.state = ss_loading;
1834         sv.paused = false;
1835
1836         sv.time = 1.0;
1837
1838         Mod_ClearUsed();
1839
1840         strcpy (sv.name, server);
1841         sprintf (sv.modelname,"maps/%s.bsp", server);
1842         sv.worldmodel = Mod_ForName(sv.modelname, false, true, true);
1843         if (!sv.worldmodel)
1844         {
1845                 Con_Printf ("Couldn't spawn server %s\n", sv.modelname);
1846                 sv.active = false;
1847                 return;
1848         }
1849         sv.models[1] = sv.worldmodel;
1850
1851 //
1852 // clear world interaction links
1853 //
1854         SV_ClearWorld ();
1855
1856         sv.sound_precache[0] = "";
1857
1858         sv.model_precache[0] = "";
1859         sv.model_precache[1] = sv.modelname;
1860         for (i = 1;i < sv.worldmodel->brushq1.numsubmodels;i++)
1861         {
1862                 sv.model_precache[i+1] = localmodels[i];
1863                 sv.models[i+1] = Mod_ForName (localmodels[i], false, false, false);
1864         }
1865
1866 //
1867 // load the rest of the entities
1868 //
1869         ent = EDICT_NUM(0);
1870         memset (ent->v, 0, progs->entityfields * 4);
1871         ent->e->free = false;
1872         ent->v->model = PR_SetString(sv.modelname);
1873         ent->v->modelindex = 1;         // world model
1874         ent->v->solid = SOLID_BSP;
1875         ent->v->movetype = MOVETYPE_PUSH;
1876
1877         if (coop.value)
1878                 pr_global_struct->coop = coop.integer;
1879         else
1880                 pr_global_struct->deathmatch = deathmatch.integer;
1881
1882         pr_global_struct->mapname = PR_SetString(sv.name);
1883
1884 // serverflags are for cross level information (sigils)
1885         pr_global_struct->serverflags = svs.serverflags;
1886
1887         // load replacement entity file if found
1888         entities = NULL;
1889         if (sv_entpatch.integer)
1890                 entities = FS_LoadFile(va("maps/%s.ent", sv.name), true);
1891         if (entities)
1892         {
1893                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
1894                 ED_LoadFromFile (entities);
1895                 Mem_Free(entities);
1896         }
1897         else
1898                 ED_LoadFromFile (sv.worldmodel->brush.entities);
1899
1900
1901         // LordHavoc: clear world angles (to fix e3m3.bsp)
1902         VectorClear(sv.edicts->v->angles);
1903
1904         sv.active = true;
1905
1906 // all setup is completed, any further precache statements are errors
1907         sv.state = ss_active;
1908
1909 // run two frames to allow everything to settle
1910         for (i = 0;i < 2;i++)
1911         {
1912                 sv.frametime = pr_global_struct->frametime = host_frametime = 0.1;
1913                 SV_Physics ();
1914         }
1915
1916         Mod_PurgeUnused();
1917
1918 #ifdef QUAKEENTITIES
1919 // create a baseline for more efficient communications
1920         SV_CreateBaseline ();
1921 #endif
1922
1923 // send serverinfo to all connected clients
1924         for (i=0,host_client = svs.clients ; i<svs.maxclients ; i++, host_client++)
1925                 if (host_client->active)
1926                         SV_SendServerinfo (host_client);
1927
1928         Con_DPrintf ("Server spawned.\n");
1929         NetConn_Heartbeat (2);
1930 }
1931