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 mempool_t *sv_clients_mempool = NULL;
  38
  39 //============================================================================
  40
  41 extern void SV_Phys_Init (void);
  42 extern void SV_World_Init (void);
  43
  44 /*
  45 ===============
  46 SV_Init
  47 ===============
  48 */
  49 void SV_Init (void)
  50 {
  51         int i;
  52
  53         Cvar_RegisterVariable (&sv_maxvelocity);
  54         Cvar_RegisterVariable (&sv_gravity);
  55         Cvar_RegisterVariable (&sv_friction);
  56         Cvar_RegisterVariable (&sv_edgefriction);
  57         Cvar_RegisterVariable (&sv_stopspeed);
  58         Cvar_RegisterVariable (&sv_maxspeed);
  59         Cvar_RegisterVariable (&sv_accelerate);
  60         Cvar_RegisterVariable (&sv_idealpitchscale);
  61         Cvar_RegisterVariable (&sv_aim);
  62         Cvar_RegisterVariable (&sv_nostep);
  63         Cvar_RegisterVariable (&sv_deltacompress);
  64         Cvar_RegisterVariable (&sv_cullentities_pvs);
  65         Cvar_RegisterVariable (&sv_cullentities_portal);
  66         Cvar_RegisterVariable (&sv_cullentities_trace);
  67         Cvar_RegisterVariable (&sv_cullentities_stats);
  68         Cvar_RegisterVariable (&sv_entpatch);
  69
  70         SV_Phys_Init();
  71         SV_World_Init();
  72
  73         for (i = 0;i < MAX_MODELS;i++)
  74                 sprintf (localmodels[i], "*%i", i);
  75
  76         sv_edicts_mempool = Mem_AllocPool("server edicts");
  77         sv_clients_mempool = Mem_AllocPool("server clients");
  78 }
  79
  80 /*
  81 =============================================================================
  82
  83 EVENT MESSAGES
  84
  85 =============================================================================
  86 */
  87
  88 /*
  89 ==================
  90 SV_StartParticle
  91
  92 Make sure the event gets sent to all clients
  93 ==================
  94 */
  95 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
  96 {
  97         int             i, v;
  98
  99         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
 100                 return;
 101         MSG_WriteByte (&sv.datagram, svc_particle);
 102         MSG_WriteDPCoord (&sv.datagram, org[0]);
 103         MSG_WriteDPCoord (&sv.datagram, org[1]);
 104         MSG_WriteDPCoord (&sv.datagram, org[2]);
 105         for (i=0 ; i<3 ; i++)
 106         {
 107                 v = dir[i]*16;
 108                 if (v > 127)
 109                         v = 127;
 110                 else if (v < -128)
 111                         v = -128;
 112                 MSG_WriteChar (&sv.datagram, v);
 113         }
 114         MSG_WriteByte (&sv.datagram, count);
 115         MSG_WriteByte (&sv.datagram, color);
 116 }
 117
 118 /*
 119 ==================
 120 SV_StartEffect
 121
 122 Make sure the event gets sent to all clients
 123 ==================
 124 */
 125 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
 126 {
 127         if (modelindex >= 256 || startframe >= 256)
 128         {
 129                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
 130                         return;
 131                 MSG_WriteByte (&sv.datagram, svc_effect2);
 132                 MSG_WriteDPCoord (&sv.datagram, org[0]);
 133                 MSG_WriteDPCoord (&sv.datagram, org[1]);
 134                 MSG_WriteDPCoord (&sv.datagram, org[2]);
 135                 MSG_WriteShort (&sv.datagram, modelindex);
 136                 MSG_WriteShort (&sv.datagram, startframe);
 137                 MSG_WriteByte (&sv.datagram, framecount);
 138                 MSG_WriteByte (&sv.datagram, framerate);
 139         }
 140         else
 141         {
 142                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
 143                         return;
 144                 MSG_WriteByte (&sv.datagram, svc_effect);
 145                 MSG_WriteDPCoord (&sv.datagram, org[0]);
 146                 MSG_WriteDPCoord (&sv.datagram, org[1]);
 147                 MSG_WriteDPCoord (&sv.datagram, org[2]);
 148                 MSG_WriteByte (&sv.datagram, modelindex);
 149                 MSG_WriteByte (&sv.datagram, startframe);
 150                 MSG_WriteByte (&sv.datagram, framecount);
 151                 MSG_WriteByte (&sv.datagram, framerate);
 152         }
 153 }
 154
 155 /*
 156 ==================
 157 SV_StartSound
 158
 159 Each entity can have eight independant sound sources, like voice,
 160 weapon, feet, etc.
 161
 162 Channel 0 is an auto-allocate channel, the others override anything
 163 already running on that entity/channel pair.
 164
 165 An attenuation of 0 will play full volume everywhere in the level.
 166 Larger attenuations will drop off.  (max 4 attenuation)
 167
 168 ==================
 169 */
 170 void SV_StartSound (edict_t *entity, int channel, char *sample, int volume, float attenuation)
 171 {
 172         int sound_num, field_mask, i, ent;
 173
 174         if (volume < 0 || volume > 255)
 175                 Host_Error ("SV_StartSound: volume = %i", volume);
 176
 177         if (attenuation < 0 || attenuation > 4)
 178                 Host_Error ("SV_StartSound: attenuation = %f", attenuation);
 179
 180         if (channel < 0 || channel > 7)
 181                 Host_Error ("SV_StartSound: channel = %i", channel);
 182
 183         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
 184                 return;
 185
 186 // find precache number for sound
 187         for (sound_num=1 ; sound_num<MAX_SOUNDS && sv.sound_precache[sound_num] ; sound_num++)
 188                 if (!strcmp(sample, sv.sound_precache[sound_num]))
 189                         break;
 190
 191         if ( sound_num == MAX_SOUNDS || !sv.sound_precache[sound_num] )
 192         {
 193                 Con_Printf ("SV_StartSound: %s not precached\n", sample);
 194                 return;
 195         }
 196
 197         ent = NUM_FOR_EDICT(entity);
 198
 199         field_mask = 0;
 200         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
 201                 field_mask |= SND_VOLUME;
 202         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
 203                 field_mask |= SND_ATTENUATION;
 204         if (ent >= 8192)
 205                 field_mask |= SND_LARGEENTITY;
 206         if (sound_num >= 256 || channel >= 8)
 207                 field_mask |= SND_LARGESOUND;
 208
 209 // directed messages go only to the entity they are targeted on
 210         MSG_WriteByte (&sv.datagram, svc_sound);
 211         MSG_WriteByte (&sv.datagram, field_mask);
 212         if (field_mask & SND_VOLUME)
 213                 MSG_WriteByte (&sv.datagram, volume);
 214         if (field_mask & SND_ATTENUATION)
 215                 MSG_WriteByte (&sv.datagram, attenuation*64);
 216         if (field_mask & SND_LARGEENTITY)
 217         {
 218                 MSG_WriteShort (&sv.datagram, ent);
 219                 MSG_WriteByte (&sv.datagram, channel);
 220         }
 221         else
 222                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
 223         if (field_mask & SND_LARGESOUND)
 224                 MSG_WriteShort (&sv.datagram, sound_num);
 225         else
 226                 MSG_WriteByte (&sv.datagram, sound_num);
 227         for (i = 0;i < 3;i++)
 228                 MSG_WriteDPCoord (&sv.datagram, entity->v->origin[i]+0.5*(entity->v->mins[i]+entity->v->maxs[i]));
 229 }
 230
 231 /*
 232 ==============================================================================
 233
 234 CLIENT SPAWNING
 235
 236 ==============================================================================
 237 */
 238
 239 /*
 240 ================
 241 SV_SendServerinfo
 242
 243 Sends the first message from the server to a connected client.
 244 This will be sent on the initial connection and upon each server load.
 245 ================
 246 */
 247 void SV_SendServerinfo (client_t *client)
 248 {
 249         char                    **s;
 250         char                    message[128];
 251
 252         // edicts get reallocated on level changes, so we need to update it here
 253         client->edict = EDICT_NUM(client->number + 1);
 254
 255         // LordHavoc: clear entityframe tracking
 256         client->entityframenumber = 0;
 257         if (client->entitydatabase4)
 258                 EntityFrame4_FreeDatabase(client->entitydatabase4);
 259         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_clients_mempool);
 260
 261         MSG_WriteByte (&client->message, svc_print);
 262         sprintf (message, "\002\nServer: %s build %s (progs %i crc)", gamename, buildstring, pr_crc);
 263         MSG_WriteString (&client->message,message);
 264
 265         MSG_WriteByte (&client->message, svc_serverinfo);
 266         MSG_WriteLong (&client->message, DPPROTOCOL_VERSION4);
 267         MSG_WriteByte (&client->message, MAX_SCOREBOARD);
 268
 269         if (!coop.integer && deathmatch.integer)
 270                 MSG_WriteByte (&client->message, GAME_DEATHMATCH);
 271         else
 272                 MSG_WriteByte (&client->message, GAME_COOP);
 273
 274         MSG_WriteString (&client->message,PR_GetString(sv.edicts->v->message));
 275
 276         for (s = sv.model_precache+1 ; *s ; s++)
 277                 MSG_WriteString (&client->message, *s);
 278         MSG_WriteByte (&client->message, 0);
 279
 280         for (s = sv.sound_precache+1 ; *s ; s++)
 281                 MSG_WriteString (&client->message, *s);
 282         MSG_WriteByte (&client->message, 0);
 283
 284 // send music
 285         MSG_WriteByte (&client->message, svc_cdtrack);
 286         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 287         MSG_WriteByte (&client->message, sv.edicts->v->sounds);
 288
 289 // set view
 290         MSG_WriteByte (&client->message, svc_setview);
 291         MSG_WriteShort (&client->message, NUM_FOR_EDICT(client->edict));
 292
 293         MSG_WriteByte (&client->message, svc_signonnum);
 294         MSG_WriteByte (&client->message, 1);
 295
 296         client->sendsignon = true;
 297         client->spawned = false;                // need prespawn, spawn, etc
 298 }
 299
 300 /*
 301 ================
 302 SV_ConnectClient
 303
 304 Initializes a client_t for a new net connection.  This will only be called
 305 once for a player each game, not once for each level change.
 306 ================
 307 */
 308 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
 309 {
 310         client_t                *client;
 311         int                             i;
 312         float                   spawn_parms[NUM_SPAWN_PARMS];
 313
 314         client = svs.connectedclients[clientnum];
 315
 316 // set up the client_t
 317         if (sv.loadgame)
 318                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
 319         memset (client, 0, sizeof(*client));
 320         client->netconnection = netconnection;
 321
 322         Con_DPrintf("Client %s connected\n", client->netconnection->address);
 323
 324         strcpy(client->name, "unconnected");
 325         strcpy(client->old_name, "unconnected");
 326         client->number = clientnum;
 327         client->spawned = false;
 328         client->edict = EDICT_NUM(clientnum+1);
 329         client->message.data = client->msgbuf;
 330         client->message.maxsize = sizeof(client->msgbuf);
 331         client->message.allowoverflow = true;           // we can catch it
 332
 333         if (sv.loadgame)
 334                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
 335         else
 336         {
 337                 // call the progs to get default spawn parms for the new client
 338                 PR_ExecuteProgram (pr_global_struct->SetNewParms, "QC function SetNewParms is missing");
 339                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
 340                         client->spawn_parms[i] = (&pr_global_struct->parm1)[i];
 341         }
 342
 343         SV_SendServerinfo (client);
 344 }
 345
 346
 347 /*
 348 ===============================================================================
 349
 350 FRAME UPDATES
 351
 352 ===============================================================================
 353 */
 354
 355 /*
 356 ==================
 357 SV_ClearDatagram
 358
 359 ==================
 360 */
 361 void SV_ClearDatagram (void)
 362 {
 363         SZ_Clear (&sv.datagram);
 364 }
 365
 366 /*
 367 =============================================================================
 368
 369 The PVS must include a small area around the client to allow head bobbing
 370 or other small motion on the client side.  Otherwise, a bob might cause an
 371 entity that should be visible to not show up, especially when the bob
 372 crosses a waterline.
 373
 374 =============================================================================
 375 */
 376
 377 int             fatbytes;
 378 qbyte   fatpvs[MAX_MAP_LEAFS/8];
 379
 380 void SV_AddToFatPVS (vec3_t org, mnode_t *node)
 381 {
 382         int             i;
 383         qbyte   *pvs;
 384         mplane_t        *plane;
 385         float   d;
 386
 387         while (1)
 388         {
 389         // if this is a leaf, accumulate the pvs bits
 390                 if (node->contents < 0)
 391                 {
 392                         if (node->contents != CONTENTS_SOLID)
 393                         {
 394                                 pvs = sv.worldmodel->brushq1.LeafPVS(sv.worldmodel, (mleaf_t *)node);
 395                                 for (i=0 ; i<fatbytes ; i++)
 396                                         fatpvs[i] |= pvs[i];
 397                         }
 398                         return;
 399                 }
 400
 401                 plane = node->plane;
 402                 d = DotProduct (org, plane->normal) - plane->dist;
 403                 if (d > 8)
 404                         node = node->children[0];
 405                 else if (d < -8)
 406                         node = node->children[1];
 407                 else
 408                 {       // go down both
 409                         SV_AddToFatPVS (org, node->children[0]);
 410                         node = node->children[1];
 411                 }
 412         }
 413 }
 414
 415 /*
 416 =============
 417 SV_FatPVS
 418
 419 Calculates a PVS that is the inclusive or of all leafs within 8 pixels of the
 420 given point.
 421 =============
 422 */
 423 qbyte *SV_FatPVS (vec3_t org)
 424 {
 425         fatbytes = (sv.worldmodel->brushq1.numleafs+31)>>3;
 426         memset (fatpvs, 0, fatbytes);
 427         SV_AddToFatPVS (org, sv.worldmodel->brushq1.nodes);
 428         return fatpvs;
 429 }
 430
 431 //=============================================================================
 432
 433
 434 int SV_BoxTouchingPVS (qbyte *pvs, vec3_t mins, vec3_t maxs, mnode_t *node)
 435 {
 436         int leafnum;
 437 loc0:
 438         if (node->contents < 0)
 439         {
 440                 // leaf
 441                 if (node->contents == CONTENTS_SOLID)
 442                         return false;
 443                 leafnum = (mleaf_t *)node - sv.worldmodel->brushq1.leafs - 1;
 444                 return pvs[leafnum >> 3] & (1 << (leafnum & 7));
 445         }
 446
 447         // node - recurse down the BSP tree
 448         switch (BoxOnPlaneSide(mins, maxs, node->plane))
 449         {
 450         case 1: // front
 451                 node = node->children[0];
 452                 goto loc0;
 453         case 2: // back
 454                 node = node->children[1];
 455                 goto loc0;
 456         default: // crossing
 457                 if (node->children[0]->contents != CONTENTS_SOLID)
 458                         if (SV_BoxTouchingPVS (pvs, mins, maxs, node->children[0]))
 459                                 return true;
 460                 node = node->children[1];
 461                 goto loc0;
 462         }
 463         // never reached
 464         return false;
 465 }
 466
 467
 468 /*
 469 =============
 470 SV_WriteEntitiesToClient
 471
 472 =============
 473 */
 474 #ifdef QUAKEENTITIES
 475 void SV_WriteEntitiesToClient (client_t *client, edict_t *clent, sizebuf_t *msg)
 476 {
 477         int e, clentnum, bits, alpha, glowcolor, glowsize, scale, effects, lightsize;
 478         int culled_pvs, culled_portal, culled_trace, visibleentities, totalentities;
 479         qbyte *pvs;
 480         vec3_t origin, angles, entmins, entmaxs, testorigin, testeye;
 481         float nextfullupdate, alphaf;
 482         edict_t *ent;
 483         eval_t *val;
 484         entity_state_t *baseline; // LordHavoc: delta or startup baseline
 485         model_t *model;
 486
 487         Mod_CheckLoaded(sv.worldmodel);
 488
 489 // find the client's PVS
 490         VectorAdd (clent->v->origin, clent->v->view_ofs, testeye);
 491         pvs = SV_FatPVS (testeye);
 492
 493         culled_pvs = 0;
 494         culled_portal = 0;
 495         culled_trace = 0;
 496         visibleentities = 0;
 497         totalentities = 0;
 498
 499         clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
 500         // send all entities that touch the pvs
 501         ent = NEXT_EDICT(sv.edicts);
 502         for (e = 1;e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 503         {
 504                 bits = 0;
 505
 506                 // prevent delta compression against this frame (unless actually sent, which will restore this later)
 507                 nextfullupdate = client->nextfullupdate[e];
 508                 client->nextfullupdate[e] = -1;
 509
 510                 if (ent != clent) // LordHavoc: always send player
 511                 {
 512                         if ((val = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)) && val->edict)
 513                         {
 514                                 if (val->edict != clentnum)
 515                                 {
 516                                         // don't show to anyone else
 517                                         continue;
 518                                 }
 519                                 else
 520                                         bits |= U_VIEWMODEL; // show relative to the view
 521                         }
 522                         else
 523                         {
 524                                 // LordHavoc: never draw something told not to display to this client
 525                                 if ((val = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)) && val->edict == clentnum)
 526                                         continue;
 527                                 if ((val = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)) && val->edict && val->edict != clentnum)
 528                                         continue;
 529                         }
 530                 }
 531
 532                 glowsize = 0;
 533
 534                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_size)))
 535                         glowsize = (int) val->_float >> 2;
 536                 if (glowsize > 255) glowsize = 255;
 537                 if (glowsize < 0) glowsize = 0;
 538
 539                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_trail)))
 540                 if (val->_float != 0)
 541                         bits |= U_GLOWTRAIL;
 542
 543                 if (ent->v->modelindex >= 0 && ent->v->modelindex < MAX_MODELS && *PR_GetString(ent->v->model))
 544                 {
 545                         model = sv.models[(int)ent->v->modelindex];
 546                         Mod_CheckLoaded(model);
 547                 }
 548                 else
 549                 {
 550                         model = NULL;
 551                         if (ent != clent) // LordHavoc: always send player
 552                                 if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 553                                         continue;
 554                 }
 555
 556                 VectorCopy(ent->v->angles, angles);
 557                 VectorCopy(ent->v->origin, origin);
 558
 559                 // ent has survived every check so far, check if it is visible
 560                 if (ent != clent && ((bits & U_VIEWMODEL) == 0))
 561                 {
 562                         // use the predicted origin
 563                         entmins[0] = origin[0] - 1.0f;
 564                         entmins[1] = origin[1] - 1.0f;
 565                         entmins[2] = origin[2] - 1.0f;
 566                         entmaxs[0] = origin[0] + 1.0f;
 567                         entmaxs[1] = origin[1] + 1.0f;
 568                         entmaxs[2] = origin[2] + 1.0f;
 569                         // using the model's bounding box to ensure things are visible regardless of their physics box
 570                         if (model)
 571                         {
 572                                 if (ent->v->angles[0] || ent->v->angles[2]) // pitch and roll
 573                                 {
 574                                         VectorAdd(entmins, model->rotatedmins, entmins);
 575                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
 576                                 }
 577                                 else if (ent->v->angles[1])
 578                                 {
 579                                         VectorAdd(entmins, model->yawmins, entmins);
 580                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
 581                                 }
 582                                 else
 583                                 {
 584                                         VectorAdd(entmins, model->normalmins, entmins);
 585                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
 586                                 }
 587                         }
 588
 589                         totalentities++;
 590
 591                         // if not touching a visible leaf
 592                         if (sv_cullentities_pvs.integer && !SV_BoxTouchingPVS(pvs, entmins, entmaxs, sv.worldmodel->brushq1.nodes))
 593                         {
 594                                 culled_pvs++;
 595                                 continue;
 596                         }
 597
 598                         // or not visible through the portals
 599                         if (sv_cullentities_portal.integer && !Portal_CheckBox(sv.worldmodel, testeye, entmins, entmaxs))
 600                         {
 601                                 culled_portal++;
 602                                 continue;
 603                         }
 604
 605                         // don't try to cull embedded brush models with this, they're sometimes huge (spanning several rooms)
 606                         if (sv_cullentities_trace.integer && (model == NULL || model->type != mod_brush || model->name[0] != '*'))
 607                         {
 608                                 // LordHavoc: test random offsets, to maximize chance of detection
 609                                 testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
 610                                 testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
 611                                 testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
 612
 613                                 if (SV_Move(testeye, vec3_origin, vec3_origin, testorigin, MOVE_WORLDONLY, NULL).fraction == 1)
 614                                         client->visibletime[e] = realtime + 1;
 615                                 else
 616                                 {
 617                                         //test nearest point on bbox
 618                                         testorigin[0] = bound(entmins[0], testeye[0], entmaxs[0]);
 619                                         testorigin[1] = bound(entmins[1], testeye[1], entmaxs[1]);
 620                                         testorigin[2] = bound(entmins[2], testeye[2], entmaxs[2]);
 621
 622                                         if (SV_Move(testeye, vec3_origin, vec3_origin, testorigin, MOVE_WORLDONLY, NULL).fraction == 1)
 623                                                 client->visibletime[e] = realtime + 1;
 624                                         else if (realtime > client->visibletime[e])
 625                                         {
 626                                                 culled_trace++;
 627                                                 continue;
 628                                         }
 629                                 }
 630                         }
 631                         visibleentities++;
 632                 }
 633
 634                 alphaf = 255.0f;
 635                 scale = 16;
 636                 glowcolor = 254;
 637                 effects = ent->v->effects;
 638
 639                 if ((val = GETEDICTFIELDVALUE(ent, eval_alpha)))
 640                 if (val->_float != 0)
 641                         alphaf = val->_float * 255.0f;
 642
 643                 // HalfLife support
 644                 if ((val = GETEDICTFIELDVALUE(ent, eval_renderamt)))
 645                 if (val->_float != 0)
 646                         alphaf = val->_float;
 647
 648                 if (alphaf == 0.0f)
 649                         alphaf = 255.0f;
 650                 alpha = bound(0, alphaf, 255);
 651
 652                 if ((val = GETEDICTFIELDVALUE(ent, eval_scale)))
 653                 if ((scale = (int) (val->_float * 16.0)) == 0) scale = 16;
 654                 if (scale < 0) scale = 0;
 655                 if (scale > 255) scale = 255;
 656
 657                 if ((val = GETEDICTFIELDVALUE(ent, eval_glow_color)))
 658                 if (val->_float != 0)
 659                         glowcolor = (int) val->_float;
 660
 661                 if ((val = GETEDICTFIELDVALUE(ent, eval_fullbright)))
 662                 if (val->_float != 0)
 663                         effects |= EF_FULLBRIGHT;
 664
 665                 if (ent != clent)
 666                 {
 667                         if (glowsize == 0 && (bits & U_GLOWTRAIL) == 0) // no effects
 668                         {
 669                                 if (model) // model
 670                                 {
 671                                         // don't send if flagged for NODRAW and there are no effects
 672                                         if (model->flags == 0 && ((effects & EF_NODRAW) || scale <= 0 || alpha <= 0))
 673                                                 continue;
 674                                 }
 675                                 else // no model and no effects
 676                                         continue;
 677                         }
 678                 }
 679
 680                 if (msg->maxsize - msg->cursize < 32) // LordHavoc: increased check from 16 to 32
 681                 {
 682                         Con_Printf ("packet overflow\n");
 683                         // mark the rest of the entities so they can't be delta compressed against this frame
 684                         for (;e < sv.num_edicts;e++)
 685                         {
 686                                 client->nextfullupdate[e] = -1;
 687                                 client->visibletime[e] = -1;
 688                         }
 689                         return;
 690                 }
 691
 692                 if ((val = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)) && val->edict == clentnum)
 693                         bits = bits | U_EXTERIORMODEL;
 694
 695 // send an update
 696                 baseline = &ent->e->baseline;
 697
 698                 if (((int)ent->v->effects & EF_DELTA) && sv_deltacompress.integer)
 699                 {
 700                         // every half second a full update is forced
 701                         if (realtime < client->nextfullupdate[e])
 702                         {
 703                                 bits |= U_DELTA;
 704                                 baseline = &ent->e->deltabaseline;
 705                         }
 706                         else
 707                                 nextfullupdate = realtime + 0.5f;
 708                 }
 709                 else
 710                         nextfullupdate = realtime + 0.5f;
 711
 712                 // restore nextfullupdate since this is being sent for real
 713                 client->nextfullupdate[e] = nextfullupdate;
 714
 715                 if (e >= 256)
 716                         bits |= U_LONGENTITY;
 717
 718                 if (ent->v->movetype == MOVETYPE_STEP)
 719                         bits |= U_STEP;
 720
 721                 // LordHavoc: old stuff, but rewritten to have more exact tolerances
 722                 if (origin[0] != baseline->origin[0])                                                                                   bits |= U_ORIGIN1;
 723                 if (origin[1] != baseline->origin[1])                                                                                   bits |= U_ORIGIN2;
 724                 if (origin[2] != baseline->origin[2])                                                                                   bits |= U_ORIGIN3;
 725                 if (((int)(angles[0]*(256.0/360.0)) & 255) != ((int)(baseline->angles[0]*(256.0/360.0)) & 255)) bits |= U_ANGLE1;
 726                 if (((int)(angles[1]*(256.0/360.0)) & 255) != ((int)(baseline->angles[1]*(256.0/360.0)) & 255)) bits |= U_ANGLE2;
 727                 if (((int)(angles[2]*(256.0/360.0)) & 255) != ((int)(baseline->angles[2]*(256.0/360.0)) & 255)) bits |= U_ANGLE3;
 728                 if (baseline->colormap != (qbyte) ent->v->colormap)                                                             bits |= U_COLORMAP;
 729                 if (baseline->skin != (qbyte) ent->v->skin)                                                                             bits |= U_SKIN;
 730                 if ((baseline->frame & 0x00FF) != ((int) ent->v->frame & 0x00FF))                               bits |= U_FRAME;
 731                 if ((baseline->effects & 0x00FF) != ((int) ent->v->effects & 0x00FF))                   bits |= U_EFFECTS;
 732                 if ((baseline->modelindex & 0x00FF) != ((int) ent->v->modelindex & 0x00FF))             bits |= U_MODEL;
 733
 734                 // LordHavoc: new stuff
 735                 if (baseline->alpha != alpha)                                                                                                   bits |= U_ALPHA;
 736                 if (baseline->scale != scale)                                                                                                   bits |= U_SCALE;
 737                 if (((int) baseline->effects & 0xFF00) != ((int) ent->v->effects & 0xFF00))             bits |= U_EFFECTS2;
 738                 if (baseline->glowsize != glowsize)                                                                                             bits |= U_GLOWSIZE;
 739                 if (baseline->glowcolor != glowcolor)                                                                                   bits |= U_GLOWCOLOR;
 740                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->frame & 0xFF00))                 bits |= U_FRAME2;
 741                 if (((int) baseline->frame & 0xFF00) != ((int) ent->v->modelindex & 0xFF00))            bits |= U_MODEL2;
 742
 743                 // update delta baseline
 744                 VectorCopy(ent->v->origin, ent->e->deltabaseline.origin);
 745                 VectorCopy(ent->v->angles, ent->e->deltabaseline.angles);
 746                 ent->e->deltabaseline.colormap = ent->v->colormap;
 747                 ent->e->deltabaseline.skin = ent->v->skin;
 748                 ent->e->deltabaseline.frame = ent->v->frame;
 749                 ent->e->deltabaseline.effects = ent->v->effects;
 750                 ent->e->deltabaseline.modelindex = ent->v->modelindex;
 751                 ent->e->deltabaseline.alpha = alpha;
 752                 ent->e->deltabaseline.scale = scale;
 753                 ent->e->deltabaseline.glowsize = glowsize;
 754                 ent->e->deltabaseline.glowcolor = glowcolor;
 755
 756                 // write the message
 757                 if (bits >= 16777216)
 758                         bits |= U_EXTEND2;
 759                 if (bits >= 65536)
 760                         bits |= U_EXTEND1;
 761                 if (bits >= 256)
 762                         bits |= U_MOREBITS;
 763                 bits |= U_SIGNAL;
 764
 765                 MSG_WriteByte (msg, bits);
 766                 if (bits & U_MOREBITS)
 767                         MSG_WriteByte (msg, bits>>8);
 768                 // LordHavoc: extend bytes have to be written here due to delta compression
 769                 if (bits & U_EXTEND1)
 770                         MSG_WriteByte (msg, bits>>16);
 771                 if (bits & U_EXTEND2)
 772                         MSG_WriteByte (msg, bits>>24);
 773
 774                 // LordHavoc: old stuff
 775                 if (bits & U_LONGENTITY)
 776                         MSG_WriteShort (msg,e);
 777                 else
 778                         MSG_WriteByte (msg,e);
 779                 if (bits & U_MODEL)             MSG_WriteByte (msg,     ent->v->modelindex);
 780                 if (bits & U_FRAME)             MSG_WriteByte (msg, ent->v->frame);
 781                 if (bits & U_COLORMAP)  MSG_WriteByte (msg, ent->v->colormap);
 782                 if (bits & U_SKIN)              MSG_WriteByte (msg, ent->v->skin);
 783                 if (bits & U_EFFECTS)   MSG_WriteByte (msg, ent->v->effects);
 784                 if (bits & U_ORIGIN1)   MSG_WriteDPCoord (msg, origin[0]);
 785                 if (bits & U_ANGLE1)    MSG_WriteAngle(msg, angles[0]);
 786                 if (bits & U_ORIGIN2)   MSG_WriteDPCoord (msg, origin[1]);
 787                 if (bits & U_ANGLE2)    MSG_WriteAngle(msg, angles[1]);
 788                 if (bits & U_ORIGIN3)   MSG_WriteDPCoord (msg, origin[2]);
 789                 if (bits & U_ANGLE3)    MSG_WriteAngle(msg, angles[2]);
 790
 791                 // LordHavoc: new stuff
 792                 if (bits & U_ALPHA)             MSG_WriteByte(msg, alpha);
 793                 if (bits & U_SCALE)             MSG_WriteByte(msg, scale);
 794                 if (bits & U_EFFECTS2)  MSG_WriteByte(msg, (int)ent->v->effects >> 8);
 795                 if (bits & U_GLOWSIZE)  MSG_WriteByte(msg, glowsize);
 796                 if (bits & U_GLOWCOLOR) MSG_WriteByte(msg, glowcolor);
 797                 if (bits & U_FRAME2)    MSG_WriteByte(msg, (int)ent->v->frame >> 8);
 798                 if (bits & U_MODEL2)    MSG_WriteByte(msg, (int)ent->v->modelindex >> 8);
 799         }
 800
 801         if (sv_cullentities_stats.integer)
 802                 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);
 803 }
 804 #else
 805 static int numsendentities;
 806 static entity_state_t sendentities[MAX_EDICTS];
 807 static entity_state_t *sendentitiesindex[MAX_EDICTS];
 808
 809 void SV_PrepareEntitiesForSending(void)
 810 {
 811         int e, i;
 812         edict_t *ent;
 813         entity_state_t cs;
 814         // send all entities that touch the pvs
 815         numsendentities = 0;
 816         sendentitiesindex[0] = NULL;
 817         for (e = 1, ent = NEXT_EDICT(sv.edicts);e < sv.num_edicts;e++, ent = NEXT_EDICT(ent))
 818         {
 819                 sendentitiesindex[e] = NULL;
 820                 if (ent->e->free)
 821                         continue;
 822
 823                 ClearStateToDefault(&cs);
 824                 cs.active = true;
 825                 cs.number = e;
 826                 VectorCopy(ent->v->origin, cs.origin);
 827                 VectorCopy(ent->v->angles, cs.angles);
 828                 cs.flags = 0;
 829                 cs.effects = (int)ent->v->effects;
 830                 cs.colormap = (qbyte)ent->v->colormap;
 831                 cs.skin = (qbyte)ent->v->skin;
 832                 cs.frame = (qbyte)ent->v->frame;
 833                 cs.viewmodelforclient = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)->edict;
 834                 cs.exteriormodelforclient = GETEDICTFIELDVALUE(ent, eval_exteriormodeltoclient)->edict;
 835                 cs.nodrawtoclient = GETEDICTFIELDVALUE(ent, eval_nodrawtoclient)->edict;
 836                 cs.drawonlytoclient = GETEDICTFIELDVALUE(ent, eval_drawonlytoclient)->edict;
 837                 cs.tagentity = GETEDICTFIELDVALUE(ent, eval_tag_entity)->edict;
 838                 cs.tagindex = (qbyte)GETEDICTFIELDVALUE(ent, eval_tag_index)->_float;
 839                 i = (int)(GETEDICTFIELDVALUE(ent, eval_glow_size)->_float * 0.25f);
 840                 cs.glowsize = (qbyte)bound(0, i, 255);
 841                 if (GETEDICTFIELDVALUE(ent, eval_glow_trail)->_float)
 842                         cs.flags |= RENDER_GLOWTRAIL;
 843
 844                 cs.modelindex = 0;
 845                 i = (int)ent->v->modelindex;
 846                 if (i >= 1 && i < MAX_MODELS && *PR_GetString(ent->v->model))
 847                         cs.modelindex = i;
 848
 849
 850                 cs.alpha = 255;
 851                 i = (int)(GETEDICTFIELDVALUE(ent, eval_alpha)->_float * 255.0f);
 852                 if (i)
 853                         cs.alpha = (qbyte)bound(0, i, 255);
 854                 // halflife
 855                 i = (int)(GETEDICTFIELDVALUE(ent, eval_renderamt)->_float);
 856                 if (i)
 857                         cs.alpha = (qbyte)bound(0, i, 255);
 858
 859                 cs.scale = 16;
 860                 i = (int)(GETEDICTFIELDVALUE(ent, eval_scale)->_float * 16.0f);
 861                 if (i)
 862                         cs.scale = (qbyte)bound(0, i, 255);
 863
 864                 cs.glowcolor = 254;
 865                 i = (int)(GETEDICTFIELDVALUE(ent, eval_glow_color)->_float);
 866                 if (i)
 867                         cs.glowcolor = i;
 868
 869                 if (GETEDICTFIELDVALUE(ent, eval_fullbright)->_float)
 870                         cs.effects |= EF_FULLBRIGHT;
 871
 872                 if (ent->v->movetype == MOVETYPE_STEP)
 873                         cs.flags |= RENDER_STEP;
 874                 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)
 875                         cs.flags |= RENDER_LOWPRECISION;
 876                 if (ent->v->colormap >= 1024)
 877                         cs.flags |= RENDER_COLORMAPPED;
 878                 if (cs.viewmodelforclient)
 879                         cs.flags |= RENDER_VIEWMODEL; // show relative to the view
 880
 881                 cs.specialvisibilityradius = 0;
 882                 if (cs.glowsize)
 883                         cs.specialvisibilityradius = max(cs.specialvisibilityradius, cs.glowsize * 4);
 884                 if (cs.flags & RENDER_GLOWTRAIL)
 885                         cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 886                 if (cs.effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
 887                 {
 888                         if (cs.effects & EF_BRIGHTFIELD)
 889                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 80);
 890                         if (cs.effects & EF_MUZZLEFLASH)
 891                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 892                         if (cs.effects & EF_BRIGHTLIGHT)
 893                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 400);
 894                         if (cs.effects & EF_DIMLIGHT)
 895                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 896                         if (cs.effects & EF_RED)
 897                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 898                         if (cs.effects & EF_BLUE)
 899                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 200);
 900                         if (cs.effects & EF_FLAME)
 901                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 250);
 902                         if (cs.effects & EF_STARDUST)
 903                                 cs.specialvisibilityradius = max(cs.specialvisibilityradius, 100);
 904                 }
 905
 906                 if (numsendentities >= MAX_EDICTS)
 907                         continue;
 908                 // we can omit invisible entities with no effects that are not clients
 909                 // LordHavoc: this could kill tags attached to an invisible entity, I
 910                 // just hope we never have to support that case
 911                 if (cs.number > MAX_SCOREBOARD && ((cs.effects & EF_NODRAW) || (!cs.modelindex && !cs.specialvisibilityradius)))
 912                         continue;
 913                 sendentitiesindex[e] = sendentities + numsendentities;
 914                 sendentities[numsendentities++] = cs;
 915         }
 916 }
 917
 918 static int sententitiesmark = 0;
 919 static int sententities[MAX_EDICTS];
 920 static int sententitiesconsideration[MAX_EDICTS];
 921 static int sv_writeentitiestoclient_culled_pvs;
 922 static int sv_writeentitiestoclient_culled_portal;
 923 static int sv_writeentitiestoclient_culled_trace;
 924 static int sv_writeentitiestoclient_visibleentities;
 925 static int sv_writeentitiestoclient_totalentities;
 926 //static entity_frame_t sv_writeentitiestoclient_entityframe;
 927 static int sv_writeentitiestoclient_clentnum;
 928 static qbyte *sv_writeentitiestoclient_pvs;
 929 static vec3_t sv_writeentitiestoclient_testeye;
 930 static client_t *sv_writeentitiestoclient_client;
 931
 932 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
 933 {
 934         vec3_t entmins, entmaxs, lightmins, lightmaxs, testorigin;
 935         model_t *model;
 936         trace_t trace;
 937         if (sententitiesconsideration[s->number] == sententitiesmark)
 938                 return;
 939         sententitiesconsideration[s->number] = sententitiesmark;
 940         // viewmodels don't have visibility checking
 941         if (s->viewmodelforclient)
 942         {
 943                 if (s->viewmodelforclient != sv_writeentitiestoclient_clentnum)
 944                         return;
 945         }
 946         // never reject player
 947         else if (s->number != sv_writeentitiestoclient_clentnum)
 948         {
 949                 // check various rejection conditions
 950                 if (s->nodrawtoclient == sv_writeentitiestoclient_clentnum)
 951                         return;
 952                 if (s->drawonlytoclient && s->drawonlytoclient != sv_writeentitiestoclient_clentnum)
 953                         return;
 954                 if (s->effects & EF_NODRAW)
 955                         return;
 956                 // LordHavoc: only send entities with a model or important effects
 957                 if (!s->modelindex && s->specialvisibilityradius == 0)
 958                         return;
 959                 if (s->tagentity)
 960                 {
 961                         // tag attached entities simply check their parent
 962                         if (!sendentitiesindex[s->tagentity])
 963                                 return;
 964                         SV_MarkWriteEntityStateToClient(sendentitiesindex[s->tagentity]);
 965                         if (sententities[s->tagentity] != sententitiesmark)
 966                                 return;
 967                 }
 968                 // always send world submodels, they don't generate much traffic
 969                 else if ((model = sv.models[s->modelindex]) == NULL || model->name[0] != '*')
 970                 {
 971                         Mod_CheckLoaded(model);
 972                         // entity has survived every check so far, check if visible
 973                         // enlarged box to account for prediction (not that there is
 974                         // any currently, but still helps the 'run into a room and
 975                         // watch items pop up' problem)
 976                         entmins[0] = s->origin[0] - 32.0f;
 977                         entmins[1] = s->origin[1] - 32.0f;
 978                         entmins[2] = s->origin[2] - 32.0f;
 979                         entmaxs[0] = s->origin[0] + 32.0f;
 980                         entmaxs[1] = s->origin[1] + 32.0f;
 981                         entmaxs[2] = s->origin[2] + 32.0f;
 982                         // using the model's bounding box to ensure things are visible regardless of their physics box
 983                         if (model)
 984                         {
 985                                 if (s->angles[0] || s->angles[2]) // pitch and roll
 986                                 {
 987                                         VectorAdd(entmins, model->rotatedmins, entmins);
 988                                         VectorAdd(entmaxs, model->rotatedmaxs, entmaxs);
 989                                 }
 990                                 else if (s->angles[1])
 991                                 {
 992                                         VectorAdd(entmins, model->yawmins, entmins);
 993                                         VectorAdd(entmaxs, model->yawmaxs, entmaxs);
 994                                 }
 995                                 else
 996                                 {
 997                                         VectorAdd(entmins, model->normalmins, entmins);
 998                                         VectorAdd(entmaxs, model->normalmaxs, entmaxs);
 999                                 }
1000                         }
1001                         lightmins[0] = min(entmins[0], s->origin[0] - s->specialvisibilityradius);
1002                         lightmins[1] = min(entmins[1], s->origin[1] - s->specialvisibilityradius);
1003                         lightmins[2] = min(entmins[2], s->origin[2] - s->specialvisibilityradius);
1004                         lightmaxs[0] = min(entmaxs[0], s->origin[0] + s->specialvisibilityradius);
1005                         lightmaxs[1] = min(entmaxs[1], s->origin[1] + s->specialvisibilityradius);
1006                         lightmaxs[2] = min(entmaxs[2], s->origin[2] + s->specialvisibilityradius);
1007                         sv_writeentitiestoclient_totalentities++;
1008                         // if not touching a visible leaf
1009                         if (sv_cullentities_pvs.integer && !SV_BoxTouchingPVS(sv_writeentitiestoclient_pvs, lightmins, lightmaxs, sv.worldmodel->brushq1.nodes))
1010                         {
1011                                 sv_writeentitiestoclient_culled_pvs++;
1012                                 return;
1013                         }
1014                         // or not visible through the portals
1015                         if (sv_cullentities_portal.integer && !Portal_CheckBox(sv.worldmodel, sv_writeentitiestoclient_testeye, lightmins, lightmaxs))
1016                         {
1017                                 sv_writeentitiestoclient_culled_portal++;
1018                                 return;
1019                         }
1020                         // or not seen by random tracelines
1021                         if (sv_cullentities_trace.integer)
1022                         {
1023                                 // LordHavoc: test center first
1024                                 testorigin[0] = (entmins[0] + entmaxs[0]) * 0.5f;
1025                                 testorigin[1] = (entmins[1] + entmaxs[1]) * 0.5f;
1026                                 testorigin[2] = (entmins[2] + entmaxs[2]) * 0.5f;
1027                                 trace = SV_Move(sv_writeentitiestoclient_testeye, vec3_origin, vec3_origin, testorigin, MOVE_WORLDONLY, NULL);
1028                                 if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
1029                                         sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
1030                                 else
1031                                 {
1032                                         // LordHavoc: test random offsets, to maximize chance of detection
1033                                         testorigin[0] = lhrandom(entmins[0], entmaxs[0]);
1034                                         testorigin[1] = lhrandom(entmins[1], entmaxs[1]);
1035                                         testorigin[2] = lhrandom(entmins[2], entmaxs[2]);
1036                                         trace = SV_Move(sv_writeentitiestoclient_testeye, vec3_origin, vec3_origin, testorigin, MOVE_WORLDONLY, NULL);
1037                                         if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
1038                                                 sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
1039                                         else
1040                                         {
1041                                                 if (s->specialvisibilityradius)
1042                                                 {
1043                                                         // LordHavoc: test random offsets, to maximize chance of detection
1044                                                         testorigin[0] = lhrandom(lightmins[0], lightmaxs[0]);
1045                                                         testorigin[1] = lhrandom(lightmins[1], lightmaxs[1]);
1046                                                         testorigin[2] = lhrandom(lightmins[2], lightmaxs[2]);
1047                                                         trace = SV_Move(sv_writeentitiestoclient_testeye, vec3_origin, vec3_origin, testorigin, MOVE_WORLDONLY, NULL);
1048                                                         if (trace.fraction == 1 || BoxesOverlap(trace.endpos, trace.endpos, entmins, entmaxs))
1049                                                                 sv_writeentitiestoclient_client->visibletime[s->number] = realtime + 1;
1050                                                 }
1051                                         }
1052                                 }
1053                                 if (realtime > sv_writeentitiestoclient_client->visibletime[s->number])
1054                                 {
1055                                         sv_writeentitiestoclient_culled_trace++;
1056                                         return;
1057                                 }
1058                         }
1059                         sv_writeentitiestoclient_visibleentities++;
1060                 }
1061         }
1062         // this just marks it for sending
1063         // FIXME: it would be more efficient to send here, but the entity
1064         // compressor isn't that flexible
1065         sententities[s->number] = sententitiesmark;
1066 }
1067
1068 void SV_WriteEntitiesToClient(client_t *client, edict_t *clent, sizebuf_t *msg)
1069 {
1070         int i;
1071         vec3_t testorigin;
1072         entity_state_t *s;
1073         entity_database4_t *d;
1074         int maxbytes, n, startnumber;
1075         entity_state_t *e, inactiveentitystate;
1076         sizebuf_t buf;
1077         qbyte data[128];
1078         // prepare the buffer
1079         memset(&buf, 0, sizeof(buf));
1080         buf.data = data;
1081         buf.maxsize = sizeof(data);
1082
1083         // this state's number gets played around with later
1084         ClearStateToDefault(&inactiveentitystate);
1085         //inactiveentitystate = defaultstate;
1086
1087         sv_writeentitiestoclient_client = client;
1088
1089         sv_writeentitiestoclient_culled_pvs = 0;
1090         sv_writeentitiestoclient_culled_portal = 0;
1091         sv_writeentitiestoclient_culled_trace = 0;
1092         sv_writeentitiestoclient_visibleentities = 0;
1093         sv_writeentitiestoclient_totalentities = 0;
1094
1095         Mod_CheckLoaded(sv.worldmodel);
1096
1097 // find the client's PVS
1098         // the real place being tested from
1099         VectorAdd(clent->v->origin, clent->v->view_ofs, sv_writeentitiestoclient_testeye);
1100         sv_writeentitiestoclient_pvs = SV_FatPVS(sv_writeentitiestoclient_testeye);
1101
1102         sv_writeentitiestoclient_clentnum = EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1103
1104         sententitiesmark++;
1105
1106         // the place being reported (to consider the fact the client still
1107         // applies the view_ofs[2], so we have to only send the fractional part
1108         // of view_ofs[2], undoing what the client will redo)
1109         VectorCopy(sv_writeentitiestoclient_testeye, testorigin);
1110         i = (int) clent->v->view_ofs[2] & 255;
1111         if (i >= 128)
1112                 i -= 256;
1113         testorigin[2] -= (float) i;
1114
1115         for (i = 0;i < numsendentities;i++)
1116                 SV_MarkWriteEntityStateToClient(sendentities + i);
1117
1118         d = client->entitydatabase4;
1119         // calculate maximum bytes to allow in this packet
1120         // deduct 4 to account for the end data
1121         maxbytes = min(msg->maxsize, MAX_PACKETFRAGMENT) - 4;
1122
1123         d->currentcommit = d->commit + EntityFrame4_SV_ChooseCommitToReplace(d);
1124         d->currentcommit->numentities = 0;
1125         d->currentcommit->framenum = ++client->entityframenumber;
1126         MSG_WriteByte(msg, svc_entities);
1127         MSG_WriteLong(msg, d->referenceframenum);
1128         MSG_WriteLong(msg, d->currentcommit->framenum);
1129         if (d->currententitynumber >= sv.max_edicts)
1130                 startnumber = 1;
1131         else
1132                 startnumber = bound(1, d->currententitynumber, sv.max_edicts - 1);
1133         MSG_WriteShort(msg, startnumber);
1134         // reset currententitynumber so if the loop does not break it we will
1135         // start at beginning next frame (if it does break, it will set it)
1136         d->currententitynumber = 1;
1137         for (i = 0, n = startnumber;n < sv.max_edicts;n++)
1138         {
1139                 // find the old state to delta from
1140                 e = EntityFrame4_GetReferenceEntity(d, n);
1141                 // prepare the buffer
1142                 SZ_Clear(&buf);
1143                 // make the message
1144                 if (sententities[n] == sententitiesmark)
1145                 {
1146                         // entity exists, build an update (if empty there is no change)
1147                         // find the state in the list
1148                         for (;i < numsendentities && sendentities[i].number < n;i++);
1149                         s = sendentities + i;
1150                         if (s->number != n)
1151                                 Sys_Error("SV_WriteEntitiesToClient: s->number != n\n");
1152                         // build the update
1153                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv_writeentitiestoclient_clentnum)
1154                         {
1155                                 s->flags |= RENDER_EXTERIORMODEL;
1156                                 EntityState_Write(s, &buf, e);
1157                                 s->flags &= ~RENDER_EXTERIORMODEL;
1158                         }
1159                         else
1160                                 EntityState_Write(s, &buf, e);
1161                 }
1162                 else
1163                 {
1164                         s = &inactiveentitystate;
1165                         s->number = n;
1166                         if (e->active)
1167                         {
1168                                 // entity used to exist but doesn't anymore, send remove
1169                                 MSG_WriteShort(&buf, n | 0x8000);
1170                         }
1171                 }
1172                 // if the commit is full, we're done this frame
1173                 if (msg->cursize + buf.cursize > maxbytes)
1174                 {
1175                         // next frame we will continue where we left off
1176                         break;
1177                 }
1178                 // add the entity to the commit
1179                 EntityFrame4_AddCommitEntity(d, s);
1180                 // if the message is empty, skip out now
1181                 if (buf.cursize)
1182                 {
1183                         // write the message to the packet
1184                         SZ_Write(msg, buf.data, buf.cursize);
1185                 }
1186         }
1187         d->currententitynumber = n;
1188
1189         // remove world message (invalid, and thus a good terminator)
1190         MSG_WriteShort(msg, 0x8000);
1191         // write the number of the end entity
1192         MSG_WriteShort(msg, d->currententitynumber);
1193         // just to be sure
1194         d->currentcommit = NULL;
1195
1196         if (sv_cullentities_stats.integer)
1197                 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);
1198 }
1199 #endif
1200
1201 /*
1202 =============
1203 SV_CleanupEnts
1204
1205 =============
1206 */
1207 void SV_CleanupEnts (void)
1208 {
1209         int             e;
1210         edict_t *ent;
1211
1212         ent = NEXT_EDICT(sv.edicts);
1213         for (e=1 ; e<sv.num_edicts ; e++, ent = NEXT_EDICT(ent))
1214                 ent->v->effects = (int)ent->v->effects & ~EF_MUZZLEFLASH;
1215 }
1216
1217 /*
1218 ==================
1219 SV_WriteClientdataToMessage
1220
1221 ==================
1222 */
1223 void SV_WriteClientdataToMessage (edict_t *ent, sizebuf_t *msg)
1224 {
1225         int             bits;
1226         int             i;
1227         edict_t *other;
1228         int             items;
1229         eval_t  *val;
1230         vec3_t  punchvector;
1231         qbyte   viewzoom;
1232
1233 //
1234 // send a damage message
1235 //
1236         if (ent->v->dmg_take || ent->v->dmg_save)
1237         {
1238                 other = PROG_TO_EDICT(ent->v->dmg_inflictor);
1239                 MSG_WriteByte (msg, svc_damage);
1240                 MSG_WriteByte (msg, ent->v->dmg_save);
1241                 MSG_WriteByte (msg, ent->v->dmg_take);
1242                 for (i=0 ; i<3 ; i++)
1243                         MSG_WriteDPCoord (msg, other->v->origin[i] + 0.5*(other->v->mins[i] + other->v->maxs[i]));
1244
1245                 ent->v->dmg_take = 0;
1246                 ent->v->dmg_save = 0;
1247         }
1248
1249 //
1250 // send the current viewpos offset from the view entity
1251 //
1252         SV_SetIdealPitch ();            // how much to look up / down ideally
1253
1254 // a fixangle might get lost in a dropped packet.  Oh well.
1255         if ( ent->v->fixangle )
1256         {
1257                 MSG_WriteByte (msg, svc_setangle);
1258                 for (i=0 ; i < 3 ; i++)
1259                         MSG_WriteAngle (msg, ent->v->angles[i] );
1260                 ent->v->fixangle = 0;
1261         }
1262
1263         bits = 0;
1264
1265         if (ent->v->view_ofs[2] != DEFAULT_VIEWHEIGHT)
1266                 bits |= SU_VIEWHEIGHT;
1267
1268         if (ent->v->idealpitch)
1269                 bits |= SU_IDEALPITCH;
1270
1271 // stuff the sigil bits into the high bits of items for sbar, or else
1272 // mix in items2
1273         val = GETEDICTFIELDVALUE(ent, eval_items2);
1274
1275         if (val)
1276                 items = (int)ent->v->items | ((int)val->_float << 23);
1277         else
1278                 items = (int)ent->v->items | ((int)pr_global_struct->serverflags << 28);
1279
1280         bits |= SU_ITEMS;
1281
1282         if ( (int)ent->v->flags & FL_ONGROUND)
1283                 bits |= SU_ONGROUND;
1284
1285         if ( ent->v->waterlevel >= 2)
1286                 bits |= SU_INWATER;
1287
1288         // dpprotocol
1289         VectorClear(punchvector);
1290         if ((val = GETEDICTFIELDVALUE(ent, eval_punchvector)))
1291                 VectorCopy(val->vector, punchvector);
1292
1293         i = 255;
1294         if ((val = GETEDICTFIELDVALUE(ent, eval_viewzoom)))
1295         {
1296                 i = val->_float * 255.0f;
1297                 if (i == 0)
1298                         i = 255;
1299                 else
1300                         i = bound(0, i, 255);
1301         }
1302         viewzoom = i;
1303
1304         if (viewzoom != 255)
1305                 bits |= SU_VIEWZOOM;
1306
1307         for (i=0 ; i<3 ; i++)
1308         {
1309                 if (ent->v->punchangle[i])
1310                         bits |= (SU_PUNCH1<<i);
1311                 if (punchvector[i]) // dpprotocol
1312                         bits |= (SU_PUNCHVEC1<<i); // dpprotocol
1313                 if (ent->v->velocity[i])
1314                         bits |= (SU_VELOCITY1<<i);
1315         }
1316
1317         if (ent->v->weaponframe)
1318                 bits |= SU_WEAPONFRAME;
1319
1320         if (ent->v->armorvalue)
1321                 bits |= SU_ARMOR;
1322
1323         bits |= SU_WEAPON;
1324
1325         if (bits >= 65536)
1326                 bits |= SU_EXTEND1;
1327         if (bits >= 16777216)
1328                 bits |= SU_EXTEND2;
1329
1330 // send the data
1331
1332         MSG_WriteByte (msg, svc_clientdata);
1333         MSG_WriteShort (msg, bits);
1334         if (bits & SU_EXTEND1)
1335                 MSG_WriteByte(msg, bits >> 16);
1336         if (bits & SU_EXTEND2)
1337                 MSG_WriteByte(msg, bits >> 24);
1338
1339         if (bits & SU_VIEWHEIGHT)
1340                 MSG_WriteChar (msg, ent->v->view_ofs[2]);
1341
1342         if (bits & SU_IDEALPITCH)
1343                 MSG_WriteChar (msg, ent->v->idealpitch);
1344
1345         for (i=0 ; i<3 ; i++)
1346         {
1347                 if (bits & (SU_PUNCH1<<i))
1348                         MSG_WritePreciseAngle(msg, ent->v->punchangle[i]); // dpprotocol
1349                 if (bits & (SU_PUNCHVEC1<<i)) // dpprotocol
1350                         MSG_WriteDPCoord(msg, punchvector[i]); // dpprotocol
1351                 if (bits & (SU_VELOCITY1<<i))
1352                         MSG_WriteChar (msg, ent->v->velocity[i]/16);
1353         }
1354
1355 // [always sent]        if (bits & SU_ITEMS)
1356         MSG_WriteLong (msg, items);
1357
1358         if (bits & SU_WEAPONFRAME)
1359                 MSG_WriteByte (msg, ent->v->weaponframe);
1360         if (bits & SU_ARMOR)
1361                 MSG_WriteByte (msg, ent->v->armorvalue);
1362         if (bits & SU_WEAPON)
1363                 MSG_WriteByte (msg, SV_ModelIndex(PR_GetString(ent->v->weaponmodel)));
1364
1365         MSG_WriteShort (msg, ent->v->health);
1366         MSG_WriteByte (msg, ent->v->currentammo);
1367         MSG_WriteByte (msg, ent->v->ammo_shells);
1368         MSG_WriteByte (msg, ent->v->ammo_nails);
1369         MSG_WriteByte (msg, ent->v->ammo_rockets);
1370         MSG_WriteByte (msg, ent->v->ammo_cells);
1371
1372         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1373         {
1374                 for(i=0;i<32;i++)
1375                 {
1376                         if ( ((int)ent->v->weapon) & (1<<i) )
1377                         {
1378                                 MSG_WriteByte (msg, i);
1379                                 break;
1380                         }
1381                 }
1382         }
1383         else
1384         {
1385                 MSG_WriteByte (msg, ent->v->weapon);
1386         }
1387
1388         if (bits & SU_VIEWZOOM)
1389                 MSG_WriteByte (msg, viewzoom);
1390 }
1391
1392 /*
1393 =======================
1394 SV_SendClientDatagram
1395 =======================
1396 */
1397 static qbyte sv_sendclientdatagram_buf[MAX_DATAGRAM]; // FIXME?
1398 qboolean SV_SendClientDatagram (client_t *client)
1399 {
1400         sizebuf_t       msg;
1401
1402         msg.data = sv_sendclientdatagram_buf;
1403         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
1404         msg.cursize = 0;
1405
1406         MSG_WriteByte (&msg, svc_time);
1407         MSG_WriteFloat (&msg, sv.time);
1408
1409         // add the client specific data to the datagram
1410         SV_WriteClientdataToMessage (client->edict, &msg);
1411
1412         SV_WriteEntitiesToClient (client, client->edict, &msg);
1413
1414         // copy the server datagram if there is space
1415         if (msg.cursize + sv.datagram.cursize < msg.maxsize)
1416                 SZ_Write (&msg, sv.datagram.data, sv.datagram.cursize);
1417
1418 // send the datagram
1419         if (NetConn_SendUnreliableMessage (client->netconnection, &msg) == -1)
1420         {
1421                 SV_DropClient (true);// if the message couldn't send, kick off
1422                 return false;
1423         }
1424
1425         return true;
1426 }
1427
1428 /*
1429 =======================
1430 SV_UpdateToReliableMessages
1431 =======================
1432 */
1433 void SV_UpdateToReliableMessages (void)
1434 {
1435         int i, j;
1436         client_t *client;
1437         eval_t *val;
1438         char *s;
1439
1440 // check for changes to be sent over the reliable streams
1441         for (i = 0;i < MAX_SCOREBOARD;i++)
1442         {
1443                 // only update the client fields if they've spawned in
1444                 if ((host_client = svs.connectedclients[i]) && host_client->spawned)
1445                 {
1446                         // update the host_client fields we care about according to the entity fields
1447                         sv_player = host_client->edict;
1448                         s = PR_GetString(sv_player->v->netname);
1449                         if (s != host_client->name)
1450                         {
1451                                 if (s == NULL)
1452                                         s = "";
1453                                 // point the string back at host_client->name to keep it safe
1454                                 strncpy(host_client->name, s, sizeof(host_client->name) - 1);
1455                                 sv_player->v->netname = PR_SetString(host_client->name);
1456                         }
1457                         if ((val = GETEDICTFIELDVALUE(sv_player, eval_clientcolors)) && host_client->colors != val->_float)
1458                                 host_client->colors = val->_float;
1459                         host_client->frags = sv_player->v->frags;
1460                         if (gamemode == GAME_NEHAHRA)
1461                                 if ((val = GETEDICTFIELDVALUE(sv_player, eval_pmodel)) && host_client->pmodel != val->_float)
1462                                         host_client->pmodel = val->_float;
1463
1464                         // if the fields changed, send messages about the changes
1465                         if (strcmp(host_client->old_name, host_client->name))
1466                         {
1467                                 strcpy(host_client->old_name, host_client->name);
1468                                 for (j = 0;j < MAX_SCOREBOARD;j++)
1469                                 {
1470                                         if (!(client = svs.connectedclients[j]) || !client->spawned)
1471                                                 continue;
1472                                         MSG_WriteByte (&client->message, svc_updatename);
1473                                         MSG_WriteByte (&client->message, i);
1474                                         MSG_WriteString (&client->message, host_client->name);
1475                                 }
1476                         }
1477                         if (host_client->old_colors != host_client->colors)
1478                         {
1479                                 host_client->old_colors = host_client->colors;
1480                                 for (j = 0;j < MAX_SCOREBOARD;j++)
1481                                 {
1482                                         if (!(client = svs.connectedclients[j]) || !client->spawned)
1483                                                 continue;
1484                                         MSG_WriteByte (&client->message, svc_updatecolors);
1485                                         MSG_WriteByte (&client->message, i);
1486                                         MSG_WriteByte (&client->message, host_client->colors);
1487                                 }
1488                         }
1489                         if (host_client->old_frags != host_client->frags)
1490                         {
1491                                 host_client->old_frags = host_client->frags;
1492                                 for (j = 0;j < MAX_SCOREBOARD;j++)
1493                                 {
1494                                         if (!(client = svs.connectedclients[j]) || !client->spawned)
1495                                                 continue;
1496                                         MSG_WriteByte (&client->message, svc_updatefrags);
1497                                         MSG_WriteByte (&client->message, i);
1498                                         MSG_WriteShort (&client->message, host_client->frags);
1499                                 }
1500                         }
1501                 }
1502         }
1503
1504         for (j = 0;j < MAX_SCOREBOARD;j++)
1505                 if ((client = svs.connectedclients[j]))
1506                         SZ_Write (&client->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1507
1508         SZ_Clear (&sv.reliable_datagram);
1509 }
1510
1511
1512 /*
1513 =======================
1514 SV_SendNop
1515
1516 Send a nop message without trashing or sending the accumulated client
1517 message buffer
1518 =======================
1519 */
1520 void SV_SendNop (client_t *client)
1521 {
1522         sizebuf_t       msg;
1523         qbyte           buf[4];
1524
1525         msg.data = buf;
1526         msg.maxsize = sizeof(buf);
1527         msg.cursize = 0;
1528
1529         MSG_WriteChar (&msg, svc_nop);
1530
1531         if (NetConn_SendUnreliableMessage (client->netconnection, &msg) == -1)
1532                 SV_DropClient (true);   // if the message couldn't send, kick off
1533         client->last_message = realtime;
1534 }
1535
1536 /*
1537 =======================
1538 SV_SendClientMessages
1539 =======================
1540 */
1541 void SV_SendClientMessages (void)
1542 {
1543         int i, prepared = false;
1544
1545 // update frags, names, etc
1546         SV_UpdateToReliableMessages();
1547
1548 // build individual updates
1549         for (i = 0;i < MAX_SCOREBOARD;i++)
1550         {
1551                 if (!(host_client = svs.connectedclients[i]))
1552                         continue;
1553
1554                 if (host_client->deadsocket || !host_client->netconnection || host_client->message.overflowed)
1555                 {
1556                         SV_DropClient (true);   // if the message couldn't send, kick off
1557                         continue;
1558                 }
1559
1560                 if (host_client->spawned)
1561                 {
1562                         if (!prepared)
1563                         {
1564                                 prepared = true;
1565                                 // only prepare entities once per frame
1566                                 SV_PrepareEntitiesForSending();
1567                         }
1568                         if (!SV_SendClientDatagram (host_client))
1569                                 continue;
1570                 }
1571                 else
1572                 {
1573                 // the player isn't totally in the game yet
1574                 // send small keepalive messages if too much time has passed
1575                 // send a full message when the next signon stage has been requested
1576                 // some other message data (name changes, etc) may accumulate
1577                 // between signon stages
1578                         if (!host_client->sendsignon)
1579                         {
1580                                 if (realtime - host_client->last_message > 5)
1581                                         SV_SendNop (host_client);
1582                                 continue;       // don't send out non-signon messages
1583                         }
1584                 }
1585
1586                 if (host_client->message.cursize || host_client->dropasap)
1587                 {
1588                         if (!NetConn_CanSendMessage (host_client->netconnection))
1589                                 continue;
1590
1591                         if (host_client->dropasap)
1592                                 SV_DropClient (false);  // went to another level
1593                         else
1594                         {
1595                                 if (NetConn_SendReliableMessage (host_client->netconnection, &host_client->message) == -1)
1596                                         SV_DropClient (true);   // if the message couldn't send, kick off
1597                                 SZ_Clear (&host_client->message);
1598                                 host_client->last_message = realtime;
1599                                 host_client->sendsignon = false;
1600                         }
1601                 }
1602         }
1603
1604 // clear muzzle flashes
1605         SV_CleanupEnts();
1606 }
1607
1608
1609 /*
1610 ==============================================================================
1611
1612 SERVER SPAWNING
1613
1614 ==============================================================================
1615 */
1616
1617 /*
1618 ================
1619 SV_ModelIndex
1620
1621 ================
1622 */
1623 int SV_ModelIndex (const char *name)
1624 {
1625         int i;
1626
1627         if (!name || !name[0])
1628                 return 0;
1629
1630         for (i=0 ; i<MAX_MODELS && sv.model_precache[i] ; i++)
1631                 if (!strcmp(sv.model_precache[i], name))
1632                         return i;
1633         if (i==MAX_MODELS || !sv.model_precache[i])
1634                 Host_Error ("SV_ModelIndex: model %s not precached", name);
1635         return i;
1636 }
1637
1638 #ifdef SV_QUAKEENTITIES
1639 /*
1640 ================
1641 SV_CreateBaseline
1642
1643 ================
1644 */
1645 void SV_CreateBaseline (void)
1646 {
1647         int i, entnum, large;
1648         edict_t *svent;
1649
1650         // LordHavoc: clear *all* states (note just active ones)
1651         for (entnum = 0;entnum < sv.max_edicts;entnum++)
1652         {
1653                 // get the current server version
1654                 svent = EDICT_NUM(entnum);
1655
1656                 // LordHavoc: always clear state values, whether the entity is in use or not
1657                 ClearStateToDefault(&svent->e->baseline);
1658
1659                 if (svent->e->free)
1660                         continue;
1661                 if (entnum > MAX_SCOREBOARD && !svent->v->modelindex)
1662                         continue;
1663
1664                 // create entity baseline
1665                 VectorCopy (svent->v->origin, svent->e->baseline.origin);
1666                 VectorCopy (svent->v->angles, svent->e->baseline.angles);
1667                 svent->e->baseline.frame = svent->v->frame;
1668                 svent->e->baseline.skin = svent->v->skin;
1669                 if (entnum > 0 && entnum <= MAX_SCOREBOARD)
1670                 {
1671                         svent->e->baseline.colormap = entnum;
1672                         svent->e->baseline.modelindex = SV_ModelIndex("progs/player.mdl");
1673                 }
1674                 else
1675                 {
1676                         svent->e->baseline.colormap = 0;
1677                         svent->e->baseline.modelindex = svent->v->modelindex;
1678                 }
1679
1680                 large = false;
1681                 if (svent->e->baseline.modelindex & 0xFF00 || svent->e->baseline.frame & 0xFF00)
1682                         large = true;
1683
1684                 // add to the message
1685                 if (large)
1686                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
1687                 else
1688                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
1689                 MSG_WriteShort (&sv.signon, entnum);
1690
1691                 if (large)
1692                 {
1693                         MSG_WriteShort (&sv.signon, svent->e->baseline.modelindex);
1694                         MSG_WriteShort (&sv.signon, svent->e->baseline.frame);
1695                 }
1696                 else
1697                 {
1698                         MSG_WriteByte (&sv.signon, svent->e->baseline.modelindex);
1699                         MSG_WriteByte (&sv.signon, svent->e->baseline.frame);
1700                 }
1701                 MSG_WriteByte (&sv.signon, svent->e->baseline.colormap);
1702                 MSG_WriteByte (&sv.signon, svent->e->baseline.skin);
1703                 for (i=0 ; i<3 ; i++)
1704                 {
1705                         MSG_WriteDPCoord(&sv.signon, svent->e->baseline.origin[i]);
1706                         MSG_WriteAngle(&sv.signon, svent->e->baseline.angles[i]);
1707                 }
1708         }
1709 }
1710 #endif
1711
1712
1713 /*
1714 ================
1715 SV_SendReconnect
1716
1717 Tell all the clients that the server is changing levels
1718 ================
1719 */
1720 void SV_SendReconnect (void)
1721 {
1722         char    data[128];
1723         sizebuf_t       msg;
1724
1725         msg.data = data;
1726         msg.cursize = 0;
1727         msg.maxsize = sizeof(data);
1728
1729         MSG_WriteChar (&msg, svc_stufftext);
1730         MSG_WriteString (&msg, "reconnect\n");
1731         NetConn_SendToAll (&msg, 5);
1732
1733         if (cls.state != ca_dedicated)
1734                 Cmd_ExecuteString ("reconnect\n", src_command);
1735 }
1736
1737
1738 /*
1739 ================
1740 SV_SaveSpawnparms
1741
1742 Grabs the current state of each client for saving across the
1743 transition to another level
1744 ================
1745 */
1746 void SV_SaveSpawnparms (void)
1747 {
1748         int             i, j;
1749
1750         svs.serverflags = pr_global_struct->serverflags;
1751
1752         for (i = 0;i < MAX_SCOREBOARD;i++)
1753         {
1754                 if (!(host_client = svs.connectedclients[i]))
1755                         continue;
1756
1757         // call the progs to get default spawn parms for the new client
1758                 pr_global_struct->self = EDICT_TO_PROG(host_client->edict);
1759                 PR_ExecuteProgram (pr_global_struct->SetChangeParms, "QC function SetChangeParms is missing");
1760                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
1761                         host_client->spawn_parms[j] = (&pr_global_struct->parm1)[j];
1762         }
1763 }
1764
1765 void SV_IncreaseEdicts(void)
1766 {
1767         int i;
1768         edict_t *ent;
1769         int oldmax_edicts = sv.max_edicts;
1770         void *oldedictsengineprivate = sv.edictsengineprivate;
1771         void *oldedictsfields = sv.edictsfields;
1772         void *oldmoved_edicts = sv.moved_edicts;
1773
1774         if (sv.max_edicts >= MAX_EDICTS)
1775                 return;
1776
1777         // links don't survive the transition, so unlink everything
1778         for (i = 0, ent = sv.edicts;i < sv.max_edicts;i++, ent++)
1779         {
1780                 if (!ent->e->free)
1781                         SV_UnlinkEdict(sv.edicts + i);
1782                 memset(&ent->e->areagrid, 0, sizeof(ent->e->areagrid));
1783         }
1784         SV_ClearWorld();
1785
1786         sv.max_edicts   = min(sv.max_edicts + 256, MAX_EDICTS);
1787         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1788         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1789         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1790
1791         memcpy(sv.edictsengineprivate, oldedictsengineprivate, oldmax_edicts * sizeof(edict_engineprivate_t));
1792         memcpy(sv.edictsfields, oldedictsfields, oldmax_edicts * pr_edict_size);
1793
1794         for (i = 0, ent = sv.edicts;i < sv.max_edicts;i++, ent++)
1795         {
1796                 ent->e = sv.edictsengineprivate + i;
1797                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1798                 // link every entity except world
1799                 if (!ent->e->free)
1800                         SV_LinkEdict(ent, false);
1801         }
1802
1803         Mem_Free(oldedictsengineprivate);
1804         Mem_Free(oldedictsfields);
1805         Mem_Free(oldmoved_edicts);
1806 }
1807
1808 /*
1809 ================
1810 SV_SpawnServer
1811
1812 This is called at the start of each level
1813 ================
1814 */
1815 extern float            scr_centertime_off;
1816
1817 void SV_SpawnServer (const char *server)
1818 {
1819         edict_t *ent;
1820         int i;
1821         qbyte *entities;
1822
1823         // let's not have any servers with no name
1824         if (hostname.string[0] == 0)
1825                 Cvar_Set ("hostname", "UNNAMED");
1826         scr_centertime_off = 0;
1827
1828         Con_DPrintf ("SpawnServer: %s\n",server);
1829         svs.changelevel_issued = false;         // now safe to issue another
1830
1831 //
1832 // tell all connected clients that we are going to a new level
1833 //
1834         if (sv.active)
1835                 SV_SendReconnect();
1836         else
1837                 NetConn_OpenServerPorts(true);
1838
1839 //
1840 // make cvars consistant
1841 //
1842         if (coop.integer)
1843                 Cvar_SetValue ("deathmatch", 0);
1844         current_skill = bound(0, (int)(skill.value + 0.5), 3);
1845
1846         Cvar_SetValue ("skill", (float)current_skill);
1847
1848 //
1849 // set up the new server
1850 //
1851         Host_ClearMemory ();
1852
1853         memset (&sv, 0, sizeof(sv));
1854
1855         strcpy (sv.name, server);
1856
1857 // load progs to get entity field count
1858         PR_LoadProgs ();
1859
1860 // allocate server memory
1861         // start out with just enough room for clients and a reasonable estimate of entities
1862         sv.max_edicts = max(MAX_SCOREBOARD + 1, 512);
1863         sv.max_edicts = min(sv.max_edicts, MAX_EDICTS);
1864
1865         // clear the edict memory pool
1866         Mem_EmptyPool(sv_edicts_mempool);
1867         // edict_t structures (hidden from progs)
1868         sv.edicts = Mem_Alloc(sv_edicts_mempool, MAX_EDICTS * sizeof(edict_t));
1869         // engine private structures (hidden from progs)
1870         sv.edictsengineprivate = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_engineprivate_t));
1871         // progs fields, often accessed by server
1872         sv.edictsfields = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * pr_edict_size);
1873         // used by PushMove to move back pushed entities
1874         sv.moved_edicts = Mem_Alloc(sv_edicts_mempool, sv.max_edicts * sizeof(edict_t *));
1875         for (i = 0;i < sv.max_edicts;i++)
1876         {
1877                 ent = sv.edicts + i;
1878                 ent->e = sv.edictsengineprivate + i;
1879                 ent->v = (void *)((qbyte *)sv.edictsfields + i * pr_edict_size);
1880         }
1881
1882         sv.datagram.maxsize = sizeof(sv.datagram_buf);
1883         sv.datagram.cursize = 0;
1884         sv.datagram.data = sv.datagram_buf;
1885
1886         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
1887         sv.reliable_datagram.cursize = 0;
1888         sv.reliable_datagram.data = sv.reliable_datagram_buf;
1889
1890         sv.signon.maxsize = sizeof(sv.signon_buf);
1891         sv.signon.cursize = 0;
1892         sv.signon.data = sv.signon_buf;
1893
1894 // leave slots at start for clients only
1895         sv.num_edicts = MAX_SCOREBOARD+1;
1896
1897         sv.state = ss_loading;
1898         sv.paused = false;
1899
1900         sv.time = 1.0;
1901
1902         Mod_ClearUsed();
1903
1904         strcpy (sv.name, server);
1905         sprintf (sv.modelname,"maps/%s.bsp", server);
1906         sv.worldmodel = Mod_ForName(sv.modelname, false, true, true);
1907         if (!sv.worldmodel)
1908         {
1909                 Con_Printf ("Couldn't spawn server %s\n", sv.modelname);
1910                 sv.active = false;
1911                 return;
1912         }
1913         sv.models[1] = sv.worldmodel;
1914
1915 //
1916 // clear world interaction links
1917 //
1918         SV_ClearWorld ();
1919
1920         sv.sound_precache[0] = "";
1921
1922         sv.model_precache[0] = "";
1923         sv.model_precache[1] = sv.modelname;
1924         for (i = 1;i < sv.worldmodel->brushq1.numsubmodels;i++)
1925         {
1926                 sv.model_precache[i+1] = localmodels[i];
1927                 sv.models[i+1] = Mod_ForName (localmodels[i], false, false, false);
1928         }
1929
1930 //
1931 // load the rest of the entities
1932 //
1933         ent = EDICT_NUM(0);
1934         memset (ent->v, 0, progs->entityfields * 4);
1935         ent->e->free = false;
1936         ent->v->model = PR_SetString(sv.modelname);
1937         ent->v->modelindex = 1;         // world model
1938         ent->v->solid = SOLID_BSP;
1939         ent->v->movetype = MOVETYPE_PUSH;
1940
1941         if (coop.value)
1942                 pr_global_struct->coop = coop.integer;
1943         else
1944                 pr_global_struct->deathmatch = deathmatch.integer;
1945
1946         pr_global_struct->mapname = PR_SetString(sv.name);
1947
1948 // serverflags are for cross level information (sigils)
1949         pr_global_struct->serverflags = svs.serverflags;
1950
1951         // load replacement entity file if found
1952         entities = NULL;
1953         if (sv_entpatch.integer)
1954                 entities = FS_LoadFile(va("maps/%s.ent", sv.name), true);
1955         if (entities)
1956         {
1957                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
1958                 ED_LoadFromFile (entities);
1959                 Mem_Free(entities);
1960         }
1961         else
1962                 ED_LoadFromFile (sv.worldmodel->brush.entities);
1963
1964
1965         // LordHavoc: clear world angles (to fix e3m3.bsp)
1966         VectorClear(sv.edicts->v->angles);
1967
1968         sv.active = true;
1969
1970 // all setup is completed, any further precache statements are errors
1971         sv.state = ss_active;
1972
1973 // run two frames to allow everything to settle
1974         for (i = 0;i < 2;i++)
1975         {
1976                 sv.frametime = pr_global_struct->frametime = host_frametime = 0.1;
1977                 SV_Physics ();
1978         }
1979
1980         Mod_PurgeUnused();
1981
1982 #ifdef QUAKEENTITIES
1983 // create a baseline for more efficient communications
1984         SV_CreateBaseline ();
1985 #endif
1986
1987 // send serverinfo to all connected clients
1988         for (i = 0;i < MAX_SCOREBOARD;i++)
1989                 if ((host_client = svs.connectedclients[i]))
1990                         SV_SendServerinfo(host_client);
1991
1992         Con_DPrintf ("Server spawned.\n");
1993         NetConn_Heartbeat (2);
1994 }
1995