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
  24 static cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "0"}; // fast but loose
  25 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
  26 static cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0"};
  27 static cvar_t sv_entpatch = {0, "sv_entpatch", "1"};
  28
  29 server_t sv;
  30 server_static_t svs;
  31
  32 static char localmodels[MAX_MODELS][5];                 // inline model names for precache
  33
  34 mempool_t *sv_edicts_mempool = NULL;
  35 mempool_t *sv_clients_mempool = NULL;
  36
  37 //============================================================================
  38
  39 extern void SV_Phys_Init (void);
  40 extern void SV_World_Init (void);
  41
  42 /*
  43 ===============
  44 SV_Init
  45 ===============
  46 */
  47 void SV_Init (void)
  48 {
  49         int i;
  50
  51         Cvar_RegisterVariable (&sv_maxvelocity);
  52         Cvar_RegisterVariable (&sv_gravity);
  53         Cvar_RegisterVariable (&sv_friction);
  54         Cvar_RegisterVariable (&sv_edgefriction);
  55         Cvar_RegisterVariable (&sv_stopspeed);
  56         Cvar_RegisterVariable (&sv_maxspeed);
  57         Cvar_RegisterVariable (&sv_accelerate);
  58         Cvar_RegisterVariable (&sv_idealpitchscale);
  59         Cvar_RegisterVariable (&sv_aim);
  60         Cvar_RegisterVariable (&sv_nostep);
  61         Cvar_RegisterVariable (&sv_deltacompress);
  62         Cvar_RegisterVariable (&sv_cullentities_pvs);
  63         Cvar_RegisterVariable (&sv_cullentities_trace);
  64         Cvar_RegisterVariable (&sv_cullentities_stats);
  65         Cvar_RegisterVariable (&sv_entpatch);
  66
  67         SV_Phys_Init();
  68         SV_World_Init();
  69
  70         for (i = 0;i < MAX_MODELS;i++)
  71                 sprintf (localmodels[i], "*%i", i);
  72
  73         sv_edicts_mempool = Mem_AllocPool("server edicts");
  74         sv_clients_mempool = Mem_AllocPool("server clients");
  75 }
  76
  77 /*
  78 =============================================================================
  79
  80 EVENT MESSAGES
  81
  82 =============================================================================
  83 */
  84
  85 /*
  86 ==================
  87 SV_StartParticle
  88
  89 Make sure the event gets sent to all clients
  90 ==================
  91 */
  92 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
  93 {
  94         int             i, v;
  95
  96         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
  97                 return;
  98         MSG_WriteByte (&sv.datagram, svc_particle);
  99         MSG_WriteDPCoord (&sv.datagram, org[0]);
 100         MSG_WriteDPCoord (&sv.datagram, org[1]);
 101         MSG_WriteDPCoord (&sv.datagram, org[2]);
 102         for (i=0 ; i<3 ; i++)
 103         {
 104                 v = dir[i]*16;
 105                 if (v > 127)
 106                         v = 127;
 107                 else if (v < -128)
 108                         v = -128;
 109                 MSG_WriteChar (&sv.datagram, v);
 110         }
 111         MSG_WriteByte (&sv.datagram, count);
 112         MSG_WriteByte (&sv.datagram, color);
 113 }
 114
 115 /*
 116 ==================
 117 SV_StartEffect
 118
 119 Make sure the event gets sent to all clients
 120 ==================
 121 */
 122 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 123 {
 124         if (modelindex >= 256 || startframe >= 256)
 125         {
 126                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 127                         return;
 128                 MSG_WriteByte (&sv.datagram, svc_effect2);
 129                 MSG_WriteDPCoord (&sv.datagram, org[0]);
 130                 MSG_WriteDPCoord (&sv.datagram, org[1]);
 131                 MSG_WriteDPCoord (&sv.datagram, org[2]);
 132                 MSG_WriteShort (&sv.datagram, modelindex);
 133                 MSG_WriteShort (&sv.datagram, startframe);
 134                 MSG_WriteByte (&sv.datagram, framecount);
 135                 MSG_WriteByte (&sv.datagram, framerate);
 136         }
 137         else
 138         {
 139                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 140                         return;
 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, float attenuation)
 168 {
 169         int sound_num, field_mask, i, ent;
 170
 171         if (volume < 0 || volume > 255)
 172                 Host_Error ("SV_StartSound: volume = %i", volume);
 173
 174         if (attenuation < 0 || attenuation > 4)
 175                 Host_Error ("SV_StartSound: attenuation = %f", attenuation);
 176
 177         if (channel < 0 || channel > 7)
 178                 Host_Error ("SV_StartSound: channel = %i", channel);
 179
 180         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 181                 return;
 182
 183 // find precache number for sound
 184         for (sound_num=1 ; sound_num<MAX_SOUNDS && sv.sound_precache[sound_num] ; sound_num++)
 185                 if (!strcmp(sample, sv.sound_precache[sound_num]))
 186                         break;
 187
 188         if ( sound_num == MAX_SOUNDS || !sv.sound_precache[sound_num] )
 189         {
 190                 Con_Printf ("SV_StartSound: %s not precached\n", sample);
 191                 return;
 192         }
 193
 194         ent = NUM_FOR_EDICT(entity);
 195
 196         field_mask = 0;
 197         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 198                 field_mask |= SND_VOLUME;
 199         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 200                 field_mask |= SND_ATTENUATION;
 201         if (ent >= 8192)
 202                 field_mask |= SND_LARGEENTITY;
 203         if (sound_num >= 256 || channel >= 8)
 204                 field_mask |= SND_LARGESOUND;
 205
 206 // directed messages go only to the entity they are targeted on
 207         MSG_WriteByte (&sv.datagram, svc_sound);
 208         MSG_WriteByte (&sv.datagram, field_mask);
 209         if (field_mask & SND_VOLUME)
 210                 MSG_WriteByte (&sv.datagram, volume);
 211         if (field_mask & SND_ATTENUATION)
 212                 MSG_WriteByte (&sv.datagram, attenuation*64);
 213         if (field_mask & SND_LARGEENTITY)
 214         {
 215                 MSG_WriteShort (&sv.datagram, ent);
 216                 MSG_WriteByte (&sv.datagram, channel);
 217         }
 218         else
 219                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 220         if (field_mask & SND_LARGESOUND)
 221                 MSG_WriteShort (&sv.datagram, sound_num);
 222         else
 223                 MSG_WriteByte (&sv.datagram, sound_num);
 224         for (i = 0;i < 3;i++)
 225                 MSG_WriteDPCoord (&sv.datagram, entity->v->origin[i]+0.5*(entity->v->mins[i]+entity->v->maxs[i]));
 226 }
 227
 228 /*
 229 ==============================================================================
 230
 231 CLIENT SPAWNING
 232
 233 ==============================================================================
 234 */
 235
 236 /*
 237 ================
 238 SV_SendServerinfo
 239
 240 Sends the first message from the server to a connected client.
 241 This will be sent on the initial connection and upon each server load.
 242 ================
 243 */
 244 void SV_SendServerinfo (client_t *client)
 245 {
 246         char                    **s;
 247         char                    message[128];
 248
 249         // edicts get reallocated on level changes, so we need to update it here
 250         client->edict = EDICT_NUM(client->number + 1);
 251
 252         // LordHavoc: clear entityframe tracking
 253         client->entityframenumber = 0;
 254         if (client->entitydatabase4)
 255                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 256         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_clients_mempool);
 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_VERSION4);
 264         MSG_WriteByte (&client->message, MAX_SCOREBOARD);
 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         MSG_WriteString (&client->message,PR_GetString(sv.edicts->v->message));
 272
 273         for (s = sv.model_precache+1 ; *s ; s++)
 274                 MSG_WriteString (&client->message, *s);
 275         MSG_WriteByte (&client->message, 0);
 276
 277         for (s = sv.sound_precache+1 ; *s ; s++)
 278                 MSG_WriteString (&client->message, *s);
 279         MSG_WriteByte (&client->message, 0);
 280
 281 // send music
 282         MSG_WriteByte (&client->message, svc_cdtrack);
 283         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 284         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 285
 286 // set view
 287         MSG_WriteByte (&client->message, svc_setview);
 288         MSG_WriteShort (&client->message, NUM_FOR_EDICT(client->edict));
 289
 290         MSG_WriteByte (&client->message, svc_signonnum);
 291         MSG_WriteByte (&client->message, 1);
 292
 293         client->sendsignon = true;
 294         client->spawned = false;                // need prespawn, spawn, etc
 295 }
 296
 297 /*
 298 ================
 299 SV_ConnectClient
 300
 301 Initializes a client_t for a new net connection.  This will only be called
 302 once for a player each game, not once for each level change.
 303 ================
 304 */
 305 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 306 {
 307         client_t                *client;
 308         int                             i;
 309         float                   spawn_parms[NUM_SPAWN_PARMS];
 310
 311         client = svs.connectedclients[clientnum];
 312
 313 // set up the client_t
 314         if (sv.loadgame)
 315                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 316         memset (client, 0, sizeof(*client));
 317         client->netconnection = netconnection;
 318
 319         Con_DPrintf("Client %s connected\n", client->netconnection->address);
 320
 321         strcpy(client->name, "unconnected");
 322         strcpy(client->old_name, "unconnected");
 323         client->number = clientnum;
 324         client->spawned = false;
 325         client->edict = EDICT_NUM(clientnum+1);
 326         client->message.data = client->msgbuf;
 327         client->message.maxsize = sizeof(client->msgbuf);
 328         client->message.allowoverflow = true;           // we can catch it
 329
 330         if (sv.loadgame)
 331                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 332         else
 333         {
 334                 // call the progs to get default spawn parms for the new client
 335                 PR_ExecuteProgram (pr_global_struct->SetNewParms, "QC function SetNewParms is missing");
 336                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 337                         client->spawn_parms[i] = (&pr_global_struct->parm1)[i];
 338         }
 339
 340         SV_SendServerinfo (client);
 341 }
 342
 343
 344 /*
 345 ===============================================================================
 346
 347 FRAME UPDATES
 348
 349 ===============================================================================
 350 */
 351
 352 /*
 353 ==================
 354 SV_ClearDatagram
 355
 356 ==================
 357 */
 358 void SV_ClearDatagram (void)
 359 {
 360         SZ_Clear (&sv.datagram);
 361 }
 362
 363 /*
 364 =============================================================================
 365
 366 The PVS must include a small area around the client to allow head bobbing
 367 or other small motion on the client side.  Otherwise, a bob might cause an
 368 entity that should be visible to not show up, especially when the bob
 369 crosses a waterline.
 370
 371 =============================================================================
 372 */
 373
 374 int sv_writeentitiestoclient_pvsbytes;
 375 qbyte sv_writeentitiestoclient_pvs[MAX_MAP_LEAFS/8];
 376
 377 /*
 378 =============
 379 SV_WriteEntitiesToClient
 380
 381 =============
 382 */
 383 #ifdef QUAKEENTITIES
 384 void SV_WriteEntitiesToClient (client_t *client, edict_t *clent, sizebuf_t *msg)
 385 {
 386         int e, clentnum, bits, alpha, glowcolor, glowsize, scale, effects, lightsize;
 387         int culled_pvs, culled_trace, visibleentities, totalentities;
 388         qbyte *pvs;
 389         vec3_t origin, angles, entmins, entmaxs, testorigin, testeye;
 390         float nextfullupdate, alphaf;
 391         edict_t *ent;
 392         eval_t *val;
 393         entity_state_t *baseline; // LordHavoc: delta or startup baseline
 394         model_t *model;
 395
 396         Mod_CheckLoaded(sv.worldmodel);
 397
 398 // find the client's PVS
 399         VectorAdd (clent->v->origin, clent->v->view_ofs, testeye);
 400         fatbytes = 0;
 401         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
 402                 fatbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, testeye, 8, sv_writeentitiestoclient_pvs, sizeof(sv_writeentitiestoclient_pvs));
 403
 404         culled_pvs = 0;
 405         culled_trace = 0;
 406         visibleentities = 0;
 407         totalentities = 0;
 408
 409         clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
 410         // send all entities that touch the pvs
 411         ent = NEXT_EDICT(sv.edicts);
 412         for (e = 1;e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 413         {
 414                 bits = 0;
 415
 416                 // prevent delta compression against this frame (unless actually sent, which will restore this later)
 417                 nextfullupdate = client->nextfullupdate[e];
 418                 client->nextfullupdate[e] = -1;
 419
 420                 if (ent != clent) // LordHavoc: always send player
 421                 {
 422                         if ((val = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)) && val->edict)
 423                         {
 424                                 if (val->edict != clentnum)
 425                                 {
 426                                         // don't show to anyone else
 427                                         continue;
 428                                 }
 429                                 else
 430                                         bits |= U_VIEWMODEL; // show relative to the view
 431                         }
 432                         else
 433                         {
 434                                 // LordHavoc: never draw something told not to display to this client
 435                                 if ((val = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)) && val->edict == clentnum)
 436                                         continue;
 437                                 if ((val = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)) && val->edict && val->edict != clentnum)
 438                                         continue;
 439                         }
 440                 }
 441
 442                 glowsize = 0;
 443
 444                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_size)))
 445                         glowsize = (int) val->_float >> 2;
 446                 if (glowsize > 255) glowsize = 255;
 447                 if (glowsize < 0) glowsize = 0;
 448
 449                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_trail)))
 450                 if (val->_float != 0)
 451                         bits |= U_GLOWTRAIL;
 452
 453                 if (ent->v->modelindex >= 0 && ent->v->modelindex < MAX_MODELS && *PR_GetString(ent->v->model))
 454                 {
 455                         model = sv.models[(int)ent->v->modelindex];
 456                         Mod_CheckLoaded(model);
 457                 }
 458                 else
 459                 {
 460                         model = NULL;
 461                         if (ent != clent) // LordHavoc: always send player
 462                                 if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 463                                         continue;
 464                 }
 465
 466                 VectorCopy(ent->v->angles, angles);
 467                 VectorCopy(ent->v->origin, origin);
 468
 469                 // ent has survived every check so far, check if it is visible
 470                 if (ent != clent && ((bits & U_VIEWMODEL) == 0))
 471                 {
 472                         // use the predicted origin
 473                         entmins[0] = origin[0] - 1.0f;
 474                         entmins[1] = origin[1] - 1.0f;
 475                         entmins[2] = origin[2] - 1.0f;
 476                         entmaxs[0] = origin[0] + 1.0f;
 477                         entmaxs[1] = origin[1] + 1.0f;
 478                         entmaxs[2] = origin[2] + 1.0f;
 479                         // using the model's bounding box to ensure things are visible regardless of their physics box
 480                         if (model)
 481                         {
 482                                 if (ent->v->angles[0] || ent->v->angles[2]) // pitch and roll
 483                                 {
 484                                         VectorAdd(entmins, model->rotatedmins, entmins);
 485                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
 486                                 }
 487                                 else if (ent->v->angles[1])
 488                                 {
 489                                         VectorAdd(entmins, model->yawmins, entmins);
 490                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
 491                                 }
 492                                 else
 493                                 {
 494                                         VectorAdd(entmins, model->normalmins, entmins);
 495                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
 496                                 }
 497                         }
 498
 499                         totalentities++;
 500
 501                         // if not touching a visible leaf
 502                         if (sv_cullentities_pvs.integer && fatbytes && sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv_writeentitiestoclient_pvs, entmins, entmaxs))
 503                         {
 504                                 culled_pvs++;
 505                                 continue;
 506                         }
 507
 508                         // don't try to cull embedded brush models with this, they're sometimes huge (spanning several rooms)
 509                         if (sv_cullentities_trace.integer && (model == NULL || model->brush.TraceBox == NULL || model->name[0] != '*'))
 510                         {
 511                                 // LordHavoc: test random offsets, to maximize chance of detection
 512                                 testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
 513                                 testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
 514                                 testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
 515
 516                                 sv.worldmodel->brush.TraceBox(sv.worldmodel, &trace, testeye, testeye, testorigin, testorigin, SUPERCONTENTS_SOLID);
 517                                 if (trace.fraction == 1)
 518                                         client->visibletime[e] = realtime + 1;
 519                                 else
 520                                 {
 521                                         //test nearest point on bbox
 522                                         testorigin[0] = bound(entmins[0], testeye[0], entmaxs[0]);
 523                                         testorigin[1] = bound(entmins[1], testeye[1], entmaxs[1]);
 524                                         testorigin[2] = bound(entmins[2], testeye[2], entmaxs[2]);
 525
 526                                         sv.worldmodel->brush.TraceBox(sv.worldmodel, &trace, testeye, testeye, testorigin, testorigin, SUPERCONTENTS_SOLID);
 527                                         if (trace.fraction == 1)
 528                                                 client->visibletime[e] = realtime + 1;
 529                                         else if (realtime > client->visibletime[e])
 530                                         {
 531                                                 culled_trace++;
 532                                                 continue;
 533                                         }
 534                                 }
 535                         }
 536                         visibleentities++;
 537                 }
 538
 539                 alphaf = 255.0f;
 540                 scale = 16;
 541                 glowcolor = 254;
 542                 effects = ent->v->effects;
 543
 544                 if ((val = GETEDICTFIELDVALUE(ent, eval_alpha)))
 545                 if (val->_float != 0)
 546                         alphaf = val->_float * 255.0f;
 547
 548                 // HalfLife support
 549                 if ((val = GETEDICTFIELDVALUE(ent, eval_renderamt)))
 550                 if (val->_float != 0)
 551                         alphaf = val->_float;
 552
 553                 if (alphaf == 0.0f)
 554                         alphaf = 255.0f;
 555                 alpha = bound(0, alphaf, 255);
 556
 557                 if ((val = GETEDICTFIELDVALUE(ent, eval_scale)))
 558                 if ((scale = (int) (val->_float * 16.0)) == 0) scale = 16;
 559                 if (scale < 0) scale = 0;
 560                 if (scale > 255) scale = 255;
 561
 562                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_color)))
 563                 if (val->_float != 0)
 564                         glowcolor = (int) val->_float;
 565
 566                 if ((val = GETEDICTFIELDVALUE(ent, eval_fullbright)))
 567                 if (val->_float != 0)
 568                         effects |= EF_FULLBRIGHT;
 569
 570                 if (ent != clent)
 571                 {
 572                         if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 573                         {
 574                                 if (model) // model
 575                                 {
 576                                         // don't send if flagged for NODRAW and there are no effects
 577                                         if (model->flags == 0 && ((effects & EF_NODRAW) || scale <= 0 || alpha <= 0))
 578                                                 continue;
 579                                 }
 580                                 else // no model and no effects
 581                                         continue;
 582                         }
 583                 }
 584
 585                 if (msg->maxsize - msg->cursize < 32) // LordHavoc: increased check from 16 to 32
 586                 {
 587                         Con_Printf ("packet overflow\n");
 588                         // mark the rest of the entities so they can't be delta compressed against this frame
 589                         for (;e < sv.num_edicts;e++)
 590                         {
 591                                 client->nextfullupdate[e] = -1;
 592                                 client->visibletime[e] = -1;
 593                         }
 594                         return;
 595                 }
 596
 597                 if ((val = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)) && val->edict == clentnum)
 598                         bits = bits | U_EXTERIORMODEL;
 599
 600 // send an update
 601                 baseline = &ent->e->baseline;
 602
 603                 if (((int)ent->v->effects & EF_DELTA) && sv_deltacompress.integer)
 604                 {
 605                         // every half second a full update is forced
 606                         if (realtime < client->nextfullupdate[e])
 607                         {
 608                                 bits |= U_DELTA;
 609                                 baseline = &ent->e->deltabaseline;
 610                         }
 611                         else
 612                                 nextfullupdate = realtime + 0.5f;
 613                 }
 614                 else
 615                         nextfullupdate = realtime + 0.5f;
 616
 617                 // restore nextfullupdate since this is being sent for real
 618                 client->nextfullupdate[e] = nextfullupdate;
 619
 620                 if (e >= 256)
 621                         bits |= U_LONGENTITY;
 622
 623                 if (ent->v->movetype == MOVETYPE_STEP)
 624                         bits |= U_STEP;
 625
 626                 // LordHavoc: old stuff, but rewritten to have more exact tolerances
 627                 if (origin[0] != baseline->origin[0])                                                                                   bits |= U_ORIGIN1;
 628                 if (origin[1] != baseline->origin[1])                                                                                   bits |= U_ORIGIN2;
 629                 if (origin[2] != baseline->origin[2])                                                                                   bits |= U_ORIGIN3;
 630                 if (((int)(angles[0]*(256.0/360.0)) & 255) != ((int)(baseline->angles[0]*(256.0/360.0)) & 255)) bits |= U_ANGLE1;
 631                 if (((int)(angles[1]*(256.0/360.0)) & 255) != ((int)(baseline->angles[1]*(256.0/360.0)) & 255)) bits |= U_ANGLE2;
 632                 if (((int)(angles[2]*(256.0/360.0)) & 255) != ((int)(baseline->angles[2]*(256.0/360.0)) & 255)) bits |= U_ANGLE3;
 633                 if (baseline->colormap != (qbyte) ent->v->colormap)                                                             bits |= U_COLORMAP;
 634                 if (baseline->skin != (qbyte) ent->v->skin)                                                                             bits |= U_SKIN;
 635                 if ((baseline->frame & 0x00FF) != ((int) ent->v->frame & 0x00FF))                               bits |= U_FRAME;
 636                 if ((baseline->effects & 0x00FF) != ((int) ent->v->effects & 0x00FF))                   bits |= U_EFFECTS;
 637                 if ((baseline->modelindex & 0x00FF) != ((int) ent->v->modelindex & 0x00FF))             bits |= U_MODEL;
 638
 639                 // LordHavoc: new stuff
 640                 if (baseline->alpha != alpha)                                                                                                   bits |= U_ALPHA;
 641                 if (baseline->scale != scale)                                                                                                   bits |= U_SCALE;
 642                 if (((int) baseline->effects & 0xFF00) != ((int) ent->v->effects & 0xFF00))             bits |= U_EFFECTS2;
 643                 if (baseline->glowsize != glowsize)                                                                                             bits |= U_GLOWSIZE;
 644                 if (baseline->glowcolor != glowcolor)                                                                                   bits |= U_GLOWCOLOR;
 645                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->frame & 0xFF00))                 bits |= U_FRAME2;
 646                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->modelindex & 0xFF00))            bits |= U_MODEL2;
 647
 648                 // update delta baseline
 649                 VectorCopy(ent->v->origin, ent->e->deltabaseline.origin);
 650                 VectorCopy(ent->v->angles, ent->e->deltabaseline.angles);
 651                 ent->e->deltabaseline.colormap = ent->v->colormap;
 652                 ent->e->deltabaseline.skin = ent->v->skin;
 653                 ent->e->deltabaseline.frame = ent->v->frame;
 654                 ent->e->deltabaseline.effects = ent->v->effects;
 655                 ent->e->deltabaseline.modelindex = ent->v->modelindex;
 656                 ent->e->deltabaseline.alpha = alpha;
 657                 ent->e->deltabaseline.scale = scale;
 658                 ent->e->deltabaseline.glowsize = glowsize;
 659                 ent->e->deltabaseline.glowcolor = glowcolor;
 660
 661                 // write the message
 662                 if (bits >= 16777216)
 663                         bits |= U_EXTEND2;
 664                 if (bits >= 65536)
 665                         bits |= U_EXTEND1;
 666                 if (bits >= 256)
 667                         bits |= U_MOREBITS;
 668                 bits |= U_SIGNAL;
 669
 670                 MSG_WriteByte (msg, bits);
 671                 if (bits & U_MOREBITS)
 672                         MSG_WriteByte (msg, bits>>8);
 673                 // LordHavoc: extend bytes have to be written here due to delta compression
 674                 if (bits & U_EXTEND1)
 675                         MSG_WriteByte (msg, bits>>16);
 676                 if (bits & U_EXTEND2)
 677                         MSG_WriteByte (msg, bits>>24);
 678
 679                 // LordHavoc: old stuff
 680                 if (bits & U_LONGENTITY)
 681                         MSG_WriteShort (msg,e);
 682                 else
 683                         MSG_WriteByte (msg,e);
 684                 if (bits & U_MODEL)             MSG_WriteByte(msg,      ent->v->modelindex);
 685                 if (bits & U_FRAME)             MSG_WriteByte(msg, ent->v->frame);
 686                 if (bits & U_COLORMAP)  MSG_WriteByte(msg, ent->v->colormap);
 687                 if (bits & U_SKIN)              MSG_WriteByte(msg, ent->v->skin);
 688                 if (bits & U_EFFECTS)   MSG_WriteByte(msg, ent->v->effects);
 689                 if (bits & U_ORIGIN1)   MSG_WriteDPCoord(msg, origin[0]);
 690                 if (bits & U_ANGLE1)    MSG_WriteAngle(msg, angles[0]);
 691                 if (bits & U_ORIGIN2)   MSG_WriteDPCoord(msg, origin[1]);
 692                 if (bits & U_ANGLE2)    MSG_WriteAngle(msg, angles[1]);
 693                 if (bits & U_ORIGIN3)   MSG_WriteDPCoord(msg, origin[2]);
 694                 if (bits & U_ANGLE3)    MSG_WriteAngle(msg, angles[2]);
 695
 696                 // LordHavoc: new stuff
 697                 if (bits & U_ALPHA)             MSG_WriteByte(msg, alpha);
 698                 if (bits & U_SCALE)             MSG_WriteByte(msg, scale);
 699                 if (bits & U_EFFECTS2)  MSG_WriteByte(msg, (int)ent->v->effects >> 8);
 700                 if (bits & U_GLOWSIZE)  MSG_WriteByte(msg, glowsize);
 701                 if (bits & U_GLOWCOLOR) MSG_WriteByte(msg, glowcolor);
 702                 if (bits & U_FRAME2)    MSG_WriteByte(msg, (int)ent->v->frame >> 8);
 703                 if (bits & U_MODEL2)    MSG_WriteByte(msg, (int)ent->v->modelindex >> 8);
 704         }
 705
 706         if (sv_cullentities_stats.integer)
 707                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d trace\n", client->name, totalentities, visibleentities, culled_pvs + culled_trace, culled_pvs, culled_trace);
 708 }
 709 #else
 710 static int numsendentities;
 711 static entity_state_t sendentities[MAX_EDICTS];
 712 static entity_state_t *sendentitiesindex[MAX_EDICTS];
 713
 714 void SV_PrepareEntitiesForSending(void)
 715 {
 716         int e, i;
 717         float f;
 718         edict_t *ent;
 719         entity_state_t cs;
 720         // send all entities that touch the pvs
 721         numsendentities = 0;
 722         sendentitiesindex[0] = NULL;
 723         for (e = 1, ent = NEXT_EDICT(sv.edicts);e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 724         {
 725                 sendentitiesindex[e] = NULL;
 726                 if (ent->e->free)
 727                         continue;
 728
 729                 ClearStateToDefault(&cs);
 730                 cs.active = true;
 731                 cs.number = e;
 732                 VectorCopy(ent->v->origin, cs.origin);
 733                 VectorCopy(ent->v->angles, cs.angles);
 734                 cs.flags = 0;
 735                 cs.effects = (int)ent->v->effects;
 736                 cs.colormap = (qbyte)ent->v->colormap;
 737                 cs.skin = (qbyte)ent->v->skin;
 738                 cs.frame = (qbyte)ent->v->frame;
 739                 cs.viewmodelforclient = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)->edict;
 740                 cs.exteriormodelforclient = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)->edict;
 741                 cs.nodrawtoclient = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)->edict;
 742                 cs.drawonlytoclient = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)->edict;
 743                 cs.tagentity = GETEDICTFIELDVALUE(ent, eval_tag_entity)->edict;
 744                 cs.tagindex = (qbyte)GETEDICTFIELDVALUE(ent, eval_tag_index)->_float;
 745                 i = (int)(GETEDICTFIELDVALUE(ent, eval_glow_size)->_float * 0.25f);
 746                 cs.glowsize = (qbyte)bound(0, i, 255);
 747                 if (GETEDICTFIELDVALUE(ent, eval_glow_trail)->_float)
 748                         cs.flags |= RENDER_GLOWTRAIL;
 749
 750                 cs.modelindex = 0;
 751                 i = (int)ent->v->modelindex;
 752                 if (i >= 1 && i < MAX_MODELS && *PR_GetString(ent->v->model))
 753                         cs.modelindex = i;
 754
 755                 cs.alpha = 255;
 756                 f = (GETEDICTFIELDVALUE(ent, eval_alpha)->_float * 255.0f);
 757                 if (f)
 758                 {
 759                         i = (int)f;
 760                         cs.alpha = (qbyte)bound(0, i, 255);
 761                 }
 762                 // halflife
 763                 f = (GETEDICTFIELDVALUE(ent, eval_renderamt)->_float);
 764                 if (f)
 765                 {
 766                         i = (int)f;
 767                         cs.alpha = (qbyte)bound(0, i, 255);
 768                 }
 769
 770                 cs.scale = 16;
 771                 f = (GETEDICTFIELDVALUE(ent, eval_scale)->_float * 16.0f);
 772                 if (f)
 773                 {
 774                         i = (int)f;
 775                         cs.scale = (qbyte)bound(0, i, 255);
 776                 }
 777
 778                 cs.glowcolor = 254;
 779                 f = (GETEDICTFIELDVALUE(ent, eval_glow_color)->_float);
 780                 if (f)
 781                         cs.glowcolor = (int)f;
 782
 783                 if (GETEDICTFIELDVALUE(ent, eval_fullbright)->_float)
 784                         cs.effects |= EF_FULLBRIGHT;
 785
 786                 if (ent->v->movetype == MOVETYPE_STEP)
 787                         cs.flags |= RENDER_STEP;
 788                 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)
 789                         cs.flags |= RENDER_LOWPRECISION;
 790                 if (ent->v->colormap >= 1024)
 791                         cs.flags |= RENDER_COLORMAPPED;
 792                 if (cs.viewmodelforclient)
 793                         cs.flags |= RENDER_VIEWMODEL; // show relative to the view
 794
 795                 cs.specialvisibilityradius = 0;
 796                 if (cs.glowsize)
 797                         cs.specialvisibilityradius = max(cs.specialvisibilityradius, cs.glowsize * 4);
 798                 if (cs.flags & RENDER_GLOWTRAIL)
 799                         cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 800                 if (cs.effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
 801                 {
 802                         if (cs.effects & EF_BRIGHTFIELD)
 803                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 80);
 804                         if (cs.effects & EF_MUZZLEFLASH)
 805                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 806                         if (cs.effects & EF_BRIGHTLIGHT)
 807                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 400);
 808                         if (cs.effects & EF_DIMLIGHT)
 809                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 810                         if (cs.effects & EF_RED)
 811                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 812                         if (cs.effects & EF_BLUE)
 813                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 814                         if (cs.effects & EF_FLAME)
 815                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 250);
 816                         if (cs.effects & EF_STARDUST)
 817                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 818                 }
 819
 820                 if (numsendentities >= MAX_EDICTS)
 821                         continue;
 822                 // we can omit invisible entities with no effects that are not clients
 823                 // LordHavoc: this could kill tags attached to an invisible entity, I
 824                 // just hope we never have to support that case
 825                 if (cs.number > MAX_SCOREBOARD && ((cs.effects & EF_NODRAW) || (!cs.modelindex && !cs.specialvisibilityradius)))
 826                         continue;
 827                 sendentitiesindex[e] = sendentities + numsendentities;
 828                 sendentities[numsendentities++] = cs;
 829         }
 830 }
 831
 832 static int sententitiesmark = 0;
 833 static int sententities[MAX_EDICTS];
 834 static int sententitiesconsideration[MAX_EDICTS];
 835 static int sv_writeentitiestoclient_culled_pvs;
 836 static int sv_writeentitiestoclient_culled_trace;
 837 static int sv_writeentitiestoclient_visibleentities;
 838 static int sv_writeentitiestoclient_totalentities;
 839 //static entity_frame_t sv_writeentitiestoclient_entityframe;
 840 static int sv_writeentitiestoclient_clentnum;
 841 static vec3_t sv_writeentitiestoclient_testeye;
 842 static client_t *sv_writeentitiestoclient_client;
 843
 844 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
 845 {
 846         vec3_t entmins, entmaxs, lightmins, lightmaxs, testorigin;
 847         model_t *model;
 848         trace_t trace;
 849         if (sententitiesconsideration[s->number] == sententitiesmark)
 850                 return;
 851         sententitiesconsideration[s->number] = sententitiesmark;
 852         // viewmodels don't have visibility checking
 853         if (s->viewmodelforclient)
 854         {
 855                 if (s->viewmodelforclient != sv_writeentitiestoclient_clentnum)
 856                         return;
 857         }
 858         // never reject player
 859         else if (s->number != sv_writeentitiestoclient_clentnum)
 860         {
 861                 // check various rejection conditions
 862                 if (s->nodrawtoclient == sv_writeentitiestoclient_clentnum)
 863                         return;
 864                 if (s->drawonlytoclient && s->drawonlytoclient != sv_writeentitiestoclient_clentnum)
 865                         return;
 866                 if (s->effects & EF_NODRAW)
 867                         return;
 868                 // LordHavoc: only send entities with a model or important effects
 869                 if (!s->modelindex && s->specialvisibilityradius == 0)
 870                         return;
 871                 if (s->tagentity)
 872                 {
 873                         // tag attached entities simply check their parent
 874                         if (!sendentitiesindex[s->tagentity])
 875                                 return;
 876                         SV_MarkWriteEntityStateToClient(sendentitiesindex[s->tagentity]);
 877                         if (sententities[s->tagentity] != sententitiesmark)
 878                                 return;
 879                 }
 880                 // always send world submodels, they don't generate much traffic
 881                 else if ((model = sv.models[s->modelindex]) == NULL || model->name[0] != '*')
 882                 {
 883                         Mod_CheckLoaded(model);
 884                         // entity has survived every check so far, check if visible
 885                         // enlarged box to account for prediction (not that there is
 886                         // any currently, but still helps the 'run into a room and
 887                         // watch items pop up' problem)
 888                         entmins[0] = s->origin[0] - 32.0f;
 889                         entmins[1] = s->origin[1] - 32.0f;
 890                         entmins[2] = s->origin[2] - 32.0f;
 891                         entmaxs[0] = s->origin[0] + 32.0f;
 892                         entmaxs[1] = s->origin[1] + 32.0f;
 893                         entmaxs[2] = s->origin[2] + 32.0f;
 894                         // using the model's bounding box to ensure things are visible regardless of their physics box
 895                         if (model)
 896                         {
 897                                 if (s->angles[0] || s->angles[2]) // pitch and roll
 898                                 {
 899                                         VectorAdd(entmins, model->rotatedmins, entmins);
 900                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
 901                                 }
 902                                 else if (s->angles[1])
 903                                 {
 904                                         VectorAdd(entmins, model->yawmins, entmins);
 905                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
 906                                 }
 907                                 else
 908                                 {
 909                                         VectorAdd(entmins, model->normalmins, entmins);
 910                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
 911                                 }
 912                         }
 913                         lightmins[0] = min(entmins[0], s->origin[0] - s->specialvisibilityradius);
 914                         lightmins[1] = min(entmins[1], s->origin[1] - s->specialvisibilityradius);
 915                         lightmins[2] = min(entmins[2], s->origin[2] - s->specialvisibilityradius);
 916                         lightmaxs[0] = min(entmaxs[0], s->origin[0] + s->specialvisibilityradius);
 917                         lightmaxs[1] = min(entmaxs[1], s->origin[1] + s->specialvisibilityradius);
 918                         lightmaxs[2] = min(entmaxs[2], s->origin[2] + s->specialvisibilityradius);
 919                         sv_writeentitiestoclient_totalentities++;
 920                         // if not touching a visible leaf
 921                         if (sv_cullentities_pvs.integer && sv_writeentitiestoclient_pvsbytes && sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv_writeentitiestoclient_pvs, lightmins, lightmaxs))
 922                         {
 923                                 sv_writeentitiestoclient_culled_pvs++;
 924                                 return;
 925                         }
 926                         // or not seen by random tracelines
 927                         if (sv_cullentities_trace.integer)
 928                         {
 929                                 // LordHavoc: test center first
 930                                 testorigin[0] = (entmins[0] + entmaxs[0]) * 0.5f;
 931                                 testorigin[1] = (entmins[1] + entmaxs[1]) * 0.5f;
 932                                 testorigin[2] = (entmins[2] + entmaxs[2]) * 0.5f;
 933                                 sv.worldmodel->brush.TraceBox(sv.worldmodel, &trace, sv_writeentitiestoclient_testeye, sv_writeentitiestoclient_testeye, testorigin, testorigin, SUPERCONTENTS_SOLID);
 934                                 if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
 935                                         sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
 936                                 else
 937                                 {
 938                                         // LordHavoc: test random offsets, to maximize chance of detection
 939                                         testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
 940                                         testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
 941                                         testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
 942                                         sv.worldmodel->brush.TraceBox(sv.worldmodel, &trace, sv_writeentitiestoclient_testeye, sv_writeentitiestoclient_testeye, testorigin, testorigin, SUPERCONTENTS_SOLID);
 943                                         if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
 944                                                 sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
 945                                         else
 946                                         {
 947                                                 if (s->specialvisibilityradius)
 948                                                 {
 949                                                         // LordHavoc: test random offsets, to maximize chance of detection
 950                                                         testorigin[0] = lhrandom(lightmins[0], lightmaxs[0]);
 951                                                         testorigin[1] = lhrandom(lightmins[1], lightmaxs[1]);
 952                                                         testorigin[2] = lhrandom(lightmins[2], lightmaxs[2]);
 953                                                         sv.worldmodel->brush.TraceBox(sv.worldmodel, &trace, sv_writeentitiestoclient_testeye, sv_writeentitiestoclient_testeye, testorigin, testorigin, SUPERCONTENTS_SOLID);
 954                                                         if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
 955                                                                 sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
 956                                                 }
 957                                         }
 958                                 }
 959                                 if (realtime > sv_writeentitiestoclient_client->visibletime[s->number])
 960                                 {
 961                                         sv_writeentitiestoclient_culled_trace++;
 962                                         return;
 963                                 }
 964                         }
 965                         sv_writeentitiestoclient_visibleentities++;
 966                 }
 967         }
 968         // this just marks it for sending
 969         // FIXME: it would be more efficient to send here, but the entity
 970         // compressor isn't that flexible
 971         sententities[s->number] = sententitiesmark;
 972 }
 973
 974 void SV_WriteEntitiesToClient(client_t *client, edict_t *clent, sizebuf_t *msg)
 975 {
 976         int i;
 977         vec3_t testorigin;
 978         entity_state_t *s;
 979         entity_database4_t *d;
 980         int maxbytes, n, startnumber;
 981         entity_state_t *e, inactiveentitystate;
 982         sizebuf_t buf;
 983         qbyte data[128];
 984         // prepare the buffer
 985         memset(&buf, 0, sizeof(buf));
 986         buf.data = data;
 987         buf.maxsize = sizeof(data);
 988
 989         // this state's number gets played around with later
 990         ClearStateToDefault(&inactiveentitystate);
 991         //inactiveentitystate = defaultstate;
 992
 993         sv_writeentitiestoclient_client = client;
 994
 995         sv_writeentitiestoclient_culled_pvs = 0;
 996         sv_writeentitiestoclient_culled_trace = 0;
 997         sv_writeentitiestoclient_visibleentities = 0;
 998         sv_writeentitiestoclient_totalentities = 0;
 999
1000         Mod_CheckLoaded(sv.worldmodel);
1001
1002 // find the client's PVS
1003         // the real place being tested from
1004         VectorAdd(clent->v->origin, clent->v->view_ofs, sv_writeentitiestoclient_testeye);
1005         sv_writeentitiestoclient_pvsbytes = 0;
1006         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1007                 sv_writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv_writeentitiestoclient_testeye, 8, sv_writeentitiestoclient_pvs, sizeof(sv_writeentitiestoclient_pvs));
1008
1009         sv_writeentitiestoclient_clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1010
1011         sententitiesmark++;
1012
1013         // the place being reported (to consider the fact the client still
1014         // applies the view_ofs[2], so we have to only send the fractional part
1015         // of view_ofs[2], undoing what the client will redo)
1016         VectorCopy(sv_writeentitiestoclient_testeye, testorigin);
1017         i = (int) clent->v->view_ofs[2] & 255;
1018         if (i >= 128)
1019                 i -= 256;
1020         testorigin[2] -= (float) i;
1021
1022         for (i = 0;i < numsendentities;i++)
1023                 SV_MarkWriteEntityStateToClient(sendentities + i);
1024
1025         d = client->entitydatabase4;
1026         // calculate maximum bytes to allow in this packet
1027         // deduct 4 to account for the end data
1028         maxbytes = min(msg->maxsize, MAX_PACKETFRAGMENT) - 4;
1029
1030         d->currentcommit = d->commit + EntityFrame4_SV_ChooseCommitToReplace(d);
1031         d->currentcommit->numentities = 0;
1032         d->currentcommit->framenum = ++client->entityframenumber;
1033         MSG_WriteByte(msg, svc_entities);
1034         MSG_WriteLong(msg, d->referenceframenum);
1035         MSG_WriteLong(msg, d->currentcommit->framenum);
1036         if (d->currententitynumber >= sv.max_edicts)
1037                 startnumber = 1;
1038         else
1039                 startnumber = bound(1, d->currententitynumber, sv.max_edicts - 1);
1040         MSG_WriteShort(msg, startnumber);
1041         // reset currententitynumber so if the loop does not break it we will
1042         // start at beginning next frame (if it does break, it will set it)
1043         d->currententitynumber = 1;
1044         for (i = 0, n = startnumber;n < sv.max_edicts;n++)
1045         {
1046                 // find the old state to delta from
1047                 e = EntityFrame4_GetReferenceEntity(d, n);
1048                 // prepare the buffer
1049                 SZ_Clear(&buf);
1050                 // make the message
1051                 if (sententities[n] == sententitiesmark)
1052                 {
1053                         // entity exists, build an update (if empty there is no change)
1054                         // find the state in the list
1055                         for (;i < numsendentities && sendentities[i].number < n;i++);
1056                         s = sendentities + i;
1057                         if (s->number != n)
1058                                 Sys_Error("SV_WriteEntitiesToClient: s->number != n\n");
1059                         // build the update
1060                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv_writeentitiestoclient_clentnum)
1061                         {
1062                                 s->flags |= RENDER_EXTERIORMODEL;
1063                                 EntityState_Write(s, &buf, e);
1064                                 s->flags &= ~RENDER_EXTERIORMODEL;
1065                         }
1066                         else
1067                                 EntityState_Write(s, &buf, e);
1068                 }
1069                 else
1070                 {
1071                         s = &inactiveentitystate;
1072                         s->number = n;
1073                         if (e->active)
1074                         {
1075                                 // entity used to exist but doesn't anymore, send remove
1076                                 MSG_WriteShort(&buf, n | 0x8000);
1077                         }
1078                 }
1079                 // if the commit is full, we're done this frame
1080                 if (msg->cursize + buf.cursize > maxbytes)
1081                 {
1082                         // next frame we will continue where we left off
1083                         break;
1084                 }
1085                 // add the entity to the commit
1086                 EntityFrame4_AddCommitEntity(d, s);
1087                 // if the message is empty, skip out now
1088                 if (buf.cursize)
1089                 {
1090                         // write the message to the packet
1091                         SZ_Write(msg, buf.data, buf.cursize);
1092                 }
1093         }
1094         d->currententitynumber = n;
1095
1096         // remove world message (invalid, and thus a good terminator)
1097         MSG_WriteShort(msg, 0x8000);
1098         // write the number of the end entity
1099         MSG_WriteShort(msg, d->currententitynumber);
1100         // just to be sure
1101         d->currentcommit = NULL;
1102
1103         if (sv_cullentities_stats.integer)
1104                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d trace\n", client->name, sv_writeentitiestoclient_totalentities, sv_writeentitiestoclient_visibleentities, sv_writeentitiestoclient_culled_pvs + sv_writeentitiestoclient_culled_trace, sv_writeentitiestoclient_culled_pvs, sv_writeentitiestoclient_culled_trace);
1105 }
1106 #endif
1107
1108 /*
1109 =============
1110 SV_CleanupEnts
1111
1112 =============
1113 */
1114 void SV_CleanupEnts (void)
1115 {
1116         int             e;
1117         edict_t *ent;
1118
1119         ent = NEXT_EDICT(sv.edicts);
1120         for (e=1 ; e<sv.num_edicts ; e++, ent = NEXT_EDICT(ent))
1121                 ent->v->effects = (int)ent->v->effects & ~EF_MUZZLEFLASH;
1122 }
1123
1124 /*
1125 ==================
1126 SV_WriteClientdataToMessage
1127
1128 ==================
1129 */
1130 void SV_WriteClientdataToMessage (edict_t *ent, sizebuf_t *msg)
1131 {
1132         int             bits;
1133         int             i;
1134         edict_t *other;
1135         int             items;
1136         eval_t  *val;
1137         vec3_t  punchvector;
1138         qbyte   viewzoom;
1139
1140 //
1141 // send a damage message
1142 //
1143         if (ent->v->dmg_take || ent->v->dmg_save)
1144         {
1145                 other = PROG_TO_EDICT(ent->v->dmg_inflictor);
1146                 MSG_WriteByte (msg, svc_damage);
1147                 MSG_WriteByte (msg, ent->v->dmg_save);
1148                 MSG_WriteByte (msg, ent->v->dmg_take);
1149                 for (i=0 ; i<3 ; i++)
1150                         MSG_WriteDPCoord (msg, other->v->origin[i] + 0.5*(other->v->mins[i] + other->v->maxs[i]));
1151
1152                 ent->v->dmg_take = 0;
1153                 ent->v->dmg_save = 0;
1154         }
1155
1156 //
1157 // send the current viewpos offset from the view entity
1158 //
1159         SV_SetIdealPitch ();            // how much to look up / down ideally
1160
1161 // a fixangle might get lost in a dropped packet.  Oh well.
1162         if ( ent->v->fixangle )
1163         {
1164                 MSG_WriteByte (msg, svc_setangle);
1165                 for (i=0 ; i < 3 ; i++)
1166                         MSG_WriteAngle (msg, ent->v->angles[i] );
1167                 ent->v->fixangle = 0;
1168         }
1169
1170         bits = 0;
1171
1172         if (ent->v->view_ofs[2] != DEFAULT_VIEWHEIGHT)
1173                 bits |= SU_VIEWHEIGHT;
1174
1175         if (ent->v->idealpitch)
1176                 bits |= SU_IDEALPITCH;
1177
1178 // stuff the sigil bits into the high bits of items for sbar, or else
1179 // mix in items2
1180         val = GETEDICTFIELDVALUE(ent, eval_items2);
1181
1182         if (val)
1183                 items = (int)ent->v->items | ((int)val->_float << 23);
1184         else
1185                 items = (int)ent->v->items | ((int)pr_global_struct->serverflags << 28);
1186
1187         bits |= SU_ITEMS;
1188
1189         if ( (int)ent->v->flags & FL_ONGROUND)
1190                 bits |= SU_ONGROUND;
1191
1192         if ( ent->v->waterlevel >= 2)
1193                 bits |= SU_INWATER;
1194
1195         // dpprotocol
1196         VectorClear(punchvector);
1197         if ((val = GETEDICTFIELDVALUE(ent, eval_punchvector)))
1198                 VectorCopy(val->vector, punchvector);
1199
1200         i = 255;
1201         if ((val = GETEDICTFIELDVALUE(ent, eval_viewzoom)))
1202         {
1203                 i = val->_float * 255.0f;
1204                 if (i == 0)
1205                         i = 255;
1206                 else
1207                         i = bound(0, i, 255);
1208         }
1209         viewzoom = i;
1210
1211         if (viewzoom != 255)
1212                 bits |= SU_VIEWZOOM;
1213
1214         for (i=0 ; i<3 ; i++)
1215         {
1216                 if (ent->v->punchangle[i])
1217                         bits |= (SU_PUNCH1<<i);
1218                 if (punchvector[i]) // dpprotocol
1219                         bits |= (SU_PUNCHVEC1<<i); // dpprotocol
1220                 if (ent->v->velocity[i])
1221                         bits |= (SU_VELOCITY1<<i);
1222         }
1223
1224         if (ent->v->weaponframe)
1225                 bits |= SU_WEAPONFRAME;
1226
1227         if (ent->v->armorvalue)
1228                 bits |= SU_ARMOR;
1229
1230         bits |= SU_WEAPON;
1231
1232         if (bits >= 65536)
1233                 bits |= SU_EXTEND1;
1234         if (bits >= 16777216)
1235                 bits |= SU_EXTEND2;
1236
1237 // send the data
1238
1239         MSG_WriteByte (msg, svc_clientdata);
1240         MSG_WriteShort (msg, bits);
1241         if (bits & SU_EXTEND1)
1242                 MSG_WriteByte(msg, bits >> 16);
1243         if (bits & SU_EXTEND2)
1244                 MSG_WriteByte(msg, bits >> 24);
1245
1246         if (bits & SU_VIEWHEIGHT)
1247                 MSG_WriteChar (msg, ent->v->view_ofs[2]);
1248
1249         if (bits & SU_IDEALPITCH)
1250                 MSG_WriteChar (msg, ent->v->idealpitch);
1251
1252         for (i=0 ; i<3 ; i++)
1253         {
1254                 if (bits & (SU_PUNCH1<<i))
1255                         MSG_WritePreciseAngle(msg, ent->v->punchangle[i]); // dpprotocol
1256                 if (bits & (SU_PUNCHVEC1<<i)) // dpprotocol
1257                         MSG_WriteDPCoord(msg, punchvector[i]); // dpprotocol
1258                 if (bits & (SU_VELOCITY1<<i))
1259                         MSG_WriteChar (msg, ent->v->velocity[i]/16);
1260         }
1261
1262 // [always sent]        if (bits & SU_ITEMS)
1263         MSG_WriteLong (msg, items);
1264
1265         if (bits & SU_WEAPONFRAME)
1266                 MSG_WriteByte (msg, ent->v->weaponframe);
1267         if (bits & SU_ARMOR)
1268                 MSG_WriteByte (msg, ent->v->armorvalue);
1269         if (bits & SU_WEAPON)
1270                 MSG_WriteByte (msg, SV_ModelIndex(PR_GetString(ent->v->weaponmodel)));
1271
1272         MSG_WriteShort (msg, ent->v->health);
1273         MSG_WriteByte (msg, ent->v->currentammo);
1274         MSG_WriteByte (msg, ent->v->ammo_shells);
1275         MSG_WriteByte (msg, ent->v->ammo_nails);
1276         MSG_WriteByte (msg, ent->v->ammo_rockets);
1277         MSG_WriteByte (msg, ent->v->ammo_cells);
1278
1279         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1280         {
1281                 for(i=0;i<32;i++)
1282                 {
1283                         if ( ((int)ent->v->weapon) & (1<<i) )
1284                         {
1285                                 MSG_WriteByte (msg, i);
1286                                 break;
1287                         }
1288                 }
1289         }
1290         else
1291         {
1292                 MSG_WriteByte (msg, ent->v->weapon);
1293         }
1294
1295         if (bits & SU_VIEWZOOM)
1296                 MSG_WriteByte (msg, viewzoom);
1297 }
1298
1299 /*
1300 =======================
1301 SV_SendClientDatagram
1302 =======================
1303 */
1304 static qbyte sv_sendclientdatagram_buf[MAX_DATAGRAM]; // FIXME?
1305 qboolean SV_SendClientDatagram (client_t *client)
1306 {
1307         sizebuf_t       msg;
1308
1309         msg.data = sv_sendclientdatagram_buf;
1310         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1311         msg.cursize = 0;
1312
1313         MSG_WriteByte (&msg, svc_time);
1314         MSG_WriteFloat (&msg, sv.time);
1315
1316         // add the client specific data to the datagram
1317         SV_WriteClientdataToMessage (client->edict, &msg);
1318
1319         SV_WriteEntitiesToClient (client, client->edict, &msg);
1320
1321         // copy the server datagram if there is space
1322         if (msg.cursize + sv.datagram.cursize < msg.maxsize)
1323                 SZ_Write (&msg, sv.datagram.data, sv.datagram.cursize);
1324
1325 // send the datagram
1326         if (NetConn_SendUnreliableMessage (client->netconnection, &msg) == -1)
1327         {
1328                 SV_DropClient (true);// if the message couldn't send, kick off
1329                 return false;
1330         }
1331
1332         return true;
1333 }
1334
1335 /*
1336 =======================
1337 SV_UpdateToReliableMessages
1338 =======================
1339 */
1340 void SV_UpdateToReliableMessages (void)
1341 {
1342         int i, j;
1343         client_t *client;
1344         eval_t *val;
1345         char *s;
1346
1347 // check for changes to be sent over the reliable streams
1348         for (i = 0;i < MAX_SCOREBOARD;i++)
1349         {
1350                 // only update the client fields if they've spawned in
1351                 if ((host_client = svs.connectedclients[i]) && host_client->spawned)
1352                 {
1353                         // update the host_client fields we care about according to the entity fields
1354                         sv_player = host_client->edict;
1355                         s = PR_GetString(sv_player->v->netname);
1356                         if (s != host_client->name)
1357                         {
1358                                 if (s == NULL)
1359                                         s = "";
1360                                 // point the string back at host_client->name to keep it safe
1361                                 strncpy(host_client->name, s, sizeof(host_client->name) - 1);
1362                                 sv_player->v->netname = PR_SetString(host_client->name);
1363                         }
1364                         if ((val = GETEDICTFIELDVALUE(sv_player, eval_clientcolors)) && host_client->colors != val->_float)
1365                                 host_client->colors = val->_float;
1366                         host_client->frags = sv_player->v->frags;
1367                         if (gamemode == GAME_NEHAHRA)
1368                                 if ((val = GETEDICTFIELDVALUE(sv_player, eval_pmodel)) && host_client->pmodel != val->_float)
1369                                         host_client->pmodel = val->_float;
1370
1371                         // if the fields changed, send messages about the changes
1372                         if (strcmp(host_client->old_name, host_client->name))
1373                         {
1374                                 strcpy(host_client->old_name, host_client->name);
1375                                 for (j = 0;j < MAX_SCOREBOARD;j++)
1376                                 {
1377                                         if (!(client = svs.connectedclients[j]) || !client->spawned)
1378                                                 continue;
1379                                         MSG_WriteByte (&client->message, svc_updatename);
1380                                         MSG_WriteByte (&client->message, i);
1381                                         MSG_WriteString (&client->message, host_client->name);
1382                                 }
1383                         }
1384                         if (host_client->old_colors != host_client->colors)
1385                         {
1386                                 host_client->old_colors = host_client->colors;
1387                                 for (j = 0;j < MAX_SCOREBOARD;j++)
1388                                 {
1389                                         if (!(client = svs.connectedclients[j]) || !client->spawned)
1390                                                 continue;
1391                                         MSG_WriteByte (&client->message, svc_updatecolors);
1392                                         MSG_WriteByte (&client->message, i);
1393                                         MSG_WriteByte (&client->message, host_client->colors);
1394                                 }
1395                         }
1396                         if (host_client->old_frags != host_client->frags)
1397                         {
1398                                 host_client->old_frags = host_client->frags;
1399                                 for (j = 0;j < MAX_SCOREBOARD;j++)
1400                                 {
1401                                         if (!(client = svs.connectedclients[j]) || !client->spawned)
1402                                                 continue;
1403                                         MSG_WriteByte (&client->message, svc_updatefrags);
1404                                         MSG_WriteByte (&client->message, i);
1405                                         MSG_WriteShort (&client->message, host_client->frags);
1406                                 }
1407                         }
1408                 }
1409         }
1410
1411         for (j = 0;j < MAX_SCOREBOARD;j++)
1412                 if ((client = svs.connectedclients[j]))
1413                         SZ_Write (&client->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1414
1415         SZ_Clear (&sv.reliable_datagram);
1416 }
1417
1418
1419 /*
1420 =======================
1421 SV_SendNop
1422
1423 Send a nop message without trashing or sending the accumulated client
1424 message buffer
1425 =======================
1426 */
1427 void SV_SendNop (client_t *client)
1428 {
1429         sizebuf_t       msg;
1430         qbyte           buf[4];
1431
1432         msg.data = buf;
1433         msg.maxsize = sizeof(buf);
1434         msg.cursize = 0;
1435
1436         MSG_WriteChar (&msg, svc_nop);
1437
1438         if (NetConn_SendUnreliableMessage (client->netconnection, &msg) == -1)
1439                 SV_DropClient (true);   // if the message couldn't send, kick off
1440         client->last_message = realtime;
1441 }
1442
1443 /*
1444 =======================
1445 SV_SendClientMessages
1446 =======================
1447 */
1448 void SV_SendClientMessages (void)
1449 {
1450         int i, prepared = false;
1451
1452 // update frags, names, etc
1453         SV_UpdateToReliableMessages();
1454
1455 // build individual updates
1456         for (i = 0;i < MAX_SCOREBOARD;i++)
1457         {
1458                 if (!(host_client = svs.connectedclients[i]))
1459                         continue;
1460
1461                 if (host_client->deadsocket || !host_client->netconnection || host_client->message.overflowed)
1462                 {
1463                         SV_DropClient (true);   // if the message couldn't send, kick off
1464                         continue;
1465                 }
1466
1467                 if (host_client->spawned)
1468                 {
1469                         if (!prepared)
1470                         {
1471                                 prepared = true;
1472                                 // only prepare entities once per frame
1473                                 SV_PrepareEntitiesForSending();
1474                         }
1475                         if (!SV_SendClientDatagram (host_client))
1476                                 continue;
1477                 }
1478                 else
1479                 {
1480                 // the player isn't totally in the game yet
1481                 // send small keepalive messages if too much time has passed
1482                 // send a full message when the next signon stage has been requested
1483                 // some other message data (name changes, etc) may accumulate
1484                 // between signon stages
1485                         if (!host_client->sendsignon)
1486                         {
1487                                 if (realtime - host_client->last_message > 5)
1488                                         SV_SendNop (host_client);
1489                                 continue;       // don't send out non-signon messages
1490                         }
1491                 }
1492
1493                 if (host_client->message.cursize || host_client->dropasap)
1494                 {
1495                         if (!NetConn_CanSendMessage (host_client->netconnection))
1496                                 continue;
1497
1498                         if (host_client->dropasap)
1499                                 SV_DropClient (false);  // went to another level
1500                         else
1501                         {
1502                                 if (NetConn_SendReliableMessage (host_client->netconnection, &host_client->message) == -1)
1503                                         SV_DropClient (true);   // if the message couldn't send, kick off
1504                                 SZ_Clear (&host_client->message);
1505                                 host_client->last_message = realtime;
1506                                 host_client->sendsignon = false;
1507                         }
1508                 }
1509         }
1510
1511 // clear muzzle flashes
1512         SV_CleanupEnts();
1513 }
1514
1515
1516 /*
1517 ==============================================================================
1518
1519 SERVER SPAWNING
1520
1521 ==============================================================================
1522 */
1523
1524 /*
1525 ================
1526 SV_ModelIndex
1527
1528 ================
1529 */
1530 int SV_ModelIndex (const char *name)
1531 {
1532         int i;
1533
1534         if (!name || !name[0])
1535                 return 0;
1536
1537         for (i=0 ; i<MAX_MODELS && sv.model_precache[i] ; i++)
1538                 if (!strcmp(sv.model_precache[i], name))
1539                         return i;
1540         if (i==MAX_MODELS || !sv.model_precache[i])
1541                 Host_Error ("SV_ModelIndex: model %s not precached", name);
1542         return i;
1543 }
1544
1545 #ifdef SV_QUAKEENTITIES
1546 /*
1547 ================
1548 SV_CreateBaseline
1549
1550 ================
1551 */
1552 void SV_CreateBaseline (void)
1553 {
1554         int i, entnum, large;
1555         edict_t *svent;
1556
1557         // LordHavoc: clear *all* states (note just active ones)
1558         for (entnum = 0;entnum < sv.max_edicts;entnum++)
1559         {
1560                 // get the current server version
1561                 svent = EDICT_NUM(entnum);
1562
1563                 // LordHavoc: always clear state values, whether the entity is in use or not
1564                 ClearStateToDefault(&svent->e->baseline);
1565
1566                 if (svent->e->free)
1567                         continue;
1568                 if (entnum > MAX_SCOREBOARD && !svent->v->modelindex)
1569                         continue;
1570
1571                 // create entity baseline
1572                 VectorCopy (svent->v->origin, svent->e->baseline.origin);
1573                 VectorCopy (svent->v->angles, svent->e->baseline.angles);
1574                 svent->e->baseline.frame = svent->v->frame;
1575                 svent->e->baseline.skin = svent->v->skin;
1576                 if (entnum > 0 && entnum <= MAX_SCOREBOARD)
1577                 {
1578                         svent->e->baseline.colormap = entnum;
1579                         svent->e->baseline.modelindex = SV_ModelIndex("progs/player.mdl");
1580                 }
1581                 else
1582                 {
1583                         svent->e->baseline.colormap = 0;
1584                         svent->e->baseline.modelindex = svent->v->modelindex;
1585                 }
1586
1587                 large = false;
1588                 if (svent->e->baseline.modelindex & 0xFF00 || svent->e->baseline.frame & 0xFF00)
1589                         large = true;
1590
1591                 // add to the message
1592                 if (large)
1593                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
1594                 else
1595                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
1596                 MSG_WriteShort (&sv.signon, entnum);
1597
1598                 if (large)
1599                 {
1600                         MSG_WriteShort (&sv.signon, svent->e->baseline.modelindex);
1601                         MSG_WriteShort (&sv.signon, svent->e->baseline.frame);
1602                 }
1603                 else
1604                 {
1605                         MSG_WriteByte (&sv.signon, svent->e->baseline.modelindex);
1606                         MSG_WriteByte (&sv.signon, svent->e->baseline.frame);
1607                 }
1608                 MSG_WriteByte (&sv.signon, svent->e->baseline.colormap);
1609                 MSG_WriteByte (&sv.signon, svent->e->baseline.skin);
1610                 for (i=0 ; i<3 ; i++)
1611                 {
1612                         MSG_WriteDPCoord(&sv.signon, svent->e->baseline.origin[i]);
1613                         MSG_WriteAngle(&sv.signon, svent->e->baseline.angles[i]);
1614                 }
1615         }
1616 }
1617 #endif
1618
1619
1620 /*
1621 ================
1622 SV_SendReconnect
1623
1624 Tell all the clients that the server is changing levels
1625 ================
1626 */
1627 void SV_SendReconnect (void)
1628 {
1629         char    data[128];
1630         sizebuf_t       msg;
1631
1632         msg.data = data;
1633         msg.cursize = 0;
1634         msg.maxsize = sizeof(data);
1635
1636         MSG_WriteChar (&msg, svc_stufftext);
1637         MSG_WriteString (&msg, "reconnect\n");
1638         NetConn_SendToAll (&msg, 5);
1639
1640         if (cls.state != ca_dedicated)
1641                 Cmd_ExecuteString ("reconnect\n", src_command);
1642 }
1643
1644
1645 /*
1646 ================
1647 SV_SaveSpawnparms
1648
1649 Grabs the current state of each client for saving across the
1650 transition to another level
1651 ================
1652 */
1653 void SV_SaveSpawnparms (void)
1654 {
1655         int             i, j;
1656
1657         svs.serverflags = pr_global_struct->serverflags;
1658
1659         for (i = 0;i < MAX_SCOREBOARD;i++)
1660         {
1661                 if (!(host_client = svs.connectedclients[i]))
1662                         continue;
1663
1664         // call the progs to get default spawn parms for the new client
1665                 pr_global_struct->self = EDICT_TO_PROG(host_client->edict);
1666                 PR_ExecuteProgram (pr_global_struct->SetChangeParms, "QC function SetChangeParms is missing");
1667                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
1668                         host_client->spawn_parms[j] = (&pr_global_struct->parm1)[j];
1669         }
1670 }
1671
1672 void SV_IncreaseEdicts(void)
1673 {
1674         int i;
1675         edict_t *ent;
1676         int oldmax_edicts = sv.max_edicts;
1677         void *oldedictsengineprivate = sv.edictsengineprivate;
1678         void *oldedictsfields = sv.edictsfields;
1679         void *oldmoved_edicts = sv.moved_edicts;
1680
1681         if (sv.max_edicts >= MAX_EDICTS)
1682                 return;
1683
1684         // links don't survive the transition, so unlink everything
1685         for (i = 0, ent = sv.edicts;i < sv.max_edicts;i++, ent++)
1686         {
1687                 if (!ent->e->free)
1688                         SV_UnlinkEdict(sv.edicts + i);
1689                 memset(&ent->e->areagrid, 0, sizeof(ent->e->areagrid));
1690         }
1691         SV_ClearWorld();
1692
1693         sv.max_edicts   = min(sv.max_edicts + 256, MAX_EDICTS);
1694         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1695         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1696         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1697
1698         memcpy(sv.edictsengineprivate, oldedictsengineprivate, oldmax_edicts * sizeof(edict_engineprivate_t));
1699         memcpy(sv.edictsfields, oldedictsfields, oldmax_edicts * pr_edict_size);
1700
1701         for (i = 0, ent = sv.edicts;i < sv.max_edicts;i++, ent++)
1702         {
1703                 ent->e = sv.edictsengineprivate + i;
1704                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1705                 // link every entity except world
1706                 if (!ent->e->free)
1707                         SV_LinkEdict(ent, false);
1708         }
1709
1710         Mem_Free(oldedictsengineprivate);
1711         Mem_Free(oldedictsfields);
1712         Mem_Free(oldmoved_edicts);
1713 }
1714
1715 /*
1716 ================
1717 SV_SpawnServer
1718
1719 This is called at the start of each level
1720 ================
1721 */
1722 extern float            scr_centertime_off;
1723
1724 void SV_SpawnServer (const char *server)
1725 {
1726         edict_t *ent;
1727         int i;
1728         qbyte *entities;
1729
1730         // let's not have any servers with no name
1731         if (hostname.string[0] == 0)
1732                 Cvar_Set ("hostname", "UNNAMED");
1733         scr_centertime_off = 0;
1734
1735         Con_DPrintf ("SpawnServer: %s\n",server);
1736         svs.changelevel_issued = false;         // now safe to issue another
1737
1738 //
1739 // tell all connected clients that we are going to a new level
1740 //
1741         if (sv.active)
1742                 SV_SendReconnect();
1743         else
1744                 NetConn_OpenServerPorts(true);
1745
1746 //
1747 // make cvars consistant
1748 //
1749         if (coop.integer)
1750                 Cvar_SetValue ("deathmatch", 0);
1751         current_skill = bound(0, (int)(skill.value + 0.5), 3);
1752
1753         Cvar_SetValue ("skill", (float)current_skill);
1754
1755 //
1756 // set up the new server
1757 //
1758         Host_ClearMemory ();
1759
1760         memset (&sv, 0, sizeof(sv));
1761
1762         strcpy (sv.name, server);
1763
1764 // load progs to get entity field count
1765         PR_LoadProgs ();
1766
1767 // allocate server memory
1768         // start out with just enough room for clients and a reasonable estimate of entities
1769         sv.max_edicts = max(MAX_SCOREBOARD + 1, 512);
1770         sv.max_edicts = min(sv.max_edicts, MAX_EDICTS);
1771
1772         // clear the edict memory pool
1773         Mem_EmptyPool(sv_edicts_mempool);
1774         // edict_t structures (hidden from progs)
1775         sv.edicts = Mem_Alloc(sv_edicts_mempool, MAX_EDICTS * sizeof(edict_t));
1776         // engine private structures (hidden from progs)
1777         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1778         // progs fields, often accessed by server
1779         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1780         // used by PushMove to move back pushed entities
1781         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1782         for (i = 0;i < sv.max_edicts;i++)
1783         {
1784                 ent = sv.edicts + i;
1785                 ent->e = sv.edictsengineprivate + i;
1786                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1787         }
1788
1789         sv.datagram.maxsize = sizeof(sv.datagram_buf);
1790         sv.datagram.cursize = 0;
1791         sv.datagram.data = sv.datagram_buf;
1792
1793         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
1794         sv.reliable_datagram.cursize = 0;
1795         sv.reliable_datagram.data = sv.reliable_datagram_buf;
1796
1797         sv.signon.maxsize = sizeof(sv.signon_buf);
1798         sv.signon.cursize = 0;
1799         sv.signon.data = sv.signon_buf;
1800
1801 // leave slots at start for clients only
1802         sv.num_edicts = MAX_SCOREBOARD+1;
1803
1804         sv.state = ss_loading;
1805         sv.paused = false;
1806
1807         sv.time = 1.0;
1808
1809         Mod_ClearUsed();
1810
1811         strcpy (sv.name, server);
1812         sprintf (sv.modelname,"maps/%s.bsp", server);
1813         sv.worldmodel = Mod_ForName(sv.modelname, false, true, true);
1814         if (!sv.worldmodel)
1815         {
1816                 Con_Printf ("Couldn't spawn server %s\n", sv.modelname);
1817                 sv.active = false;
1818                 return;
1819         }
1820         sv.models[1] = sv.worldmodel;
1821
1822 //
1823 // clear world interaction links
1824 //
1825         SV_ClearWorld ();
1826
1827         sv.sound_precache[0] = "";
1828
1829         sv.model_precache[0] = "";
1830         sv.model_precache[1] = sv.modelname;
1831         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
1832         {
1833                 sv.model_precache[i+1] = localmodels[i];
1834                 sv.models[i+1] = Mod_ForName (localmodels[i], false, false, false);
1835         }
1836
1837 //
1838 // load the rest of the entities
1839 //
1840         ent = EDICT_NUM(0);
1841         memset (ent->v, 0, progs->entityfields * 4);
1842         ent->e->free = false;
1843         ent->v->model = PR_SetString(sv.modelname);
1844         ent->v->modelindex = 1;         // world model
1845         ent->v->solid = SOLID_BSP;
1846         ent->v->movetype = MOVETYPE_PUSH;
1847
1848         if (coop.value)
1849                 pr_global_struct->coop = coop.integer;
1850         else
1851                 pr_global_struct->deathmatch = deathmatch.integer;
1852
1853         pr_global_struct->mapname = PR_SetString(sv.name);
1854
1855 // serverflags are for cross level information (sigils)
1856         pr_global_struct->serverflags = svs.serverflags;
1857
1858         // load replacement entity file if found
1859         entities = NULL;
1860         if (sv_entpatch.integer)
1861                 entities = FS_LoadFile(va("maps/%s.ent", sv.name), true);
1862         if (entities)
1863         {
1864                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
1865                 ED_LoadFromFile (entities);
1866                 Mem_Free(entities);
1867         }
1868         else
1869                 ED_LoadFromFile (sv.worldmodel->brush.entities);
1870
1871
1872         // LordHavoc: clear world angles (to fix e3m3.bsp)
1873         VectorClear(sv.edicts->v->angles);
1874
1875         sv.active = true;
1876
1877 // all setup is completed, any further precache statements are errors
1878         sv.state = ss_active;
1879
1880 // run two frames to allow everything to settle
1881         for (i = 0;i < 2;i++)
1882         {
1883                 sv.frametime = pr_global_struct->frametime = host_frametime = 0.1;
1884                 SV_Physics ();
1885         }
1886
1887         Mod_PurgeUnused();
1888
1889 #ifdef QUAKEENTITIES
1890 // create a baseline for more efficient communications
1891         SV_CreateBaseline ();
1892 #endif
1893
1894 // send serverinfo to all connected clients
1895         for (i = 0;i < MAX_SCOREBOARD;i++)
1896                 if ((host_client = svs.connectedclients[i]))
1897                         SV_SendServerinfo(host_client);
1898
1899         Con_DPrintf ("Server spawned.\n");
1900         NetConn_Heartbeat (2);
1901 }
1902