added DP_SV_MODELFLAGS_AS_EFFECTS extension, this adds EF_ROCKET and
[divverent/darkplaces.git] / 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 "libcurl.h"
24
25 void SV_VM_Init();
26 void SV_VM_Setup();
27
28 void VM_CustomStats_Clear (void);
29 void EntityFrameCSQC_ClearVersions (void);
30 void EntityFrameCSQC_InitClientVersions (int client, qboolean clear);
31 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
32 void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int numstates, const entity_state_t *states);
33
34
35 // select which protocol to host, this is fed to Protocol_EnumForName
36 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
37 cvar_t sv_ratelimitlocalplayer = {0, "sv_ratelimitlocalplayer", "0", "whether to apply rate limiting to the local player in a listen server (only useful for testing)"};
38 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "10000", "upper limit on client rate cvar, should reflect your network connection quality"};
39 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
40 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
41 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
42 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
43 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
44
45 extern cvar_t sv_random_seed;
46
47 static cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"}; // fast but loose
48 static cvar_t sv_cullentities_trace = {0, "sv_cullentities_trace", "0", "somewhat slow but very tight culling of hidden entities, minimizes network traffic and makes wallhack cheats useless"}; // tends to get false negatives, uses a timeout to keep entities visible a short time after becoming hidden
49 static cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
50 static cvar_t sv_cullentities_trace_samples_extra = {0, "sv_cullentities_trace_samples_extra", "2", "number of samples to test for entity culling when the entity affects its surroundings by e.g. dlight"};
51 static cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
52 static cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
53 static cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
54 static cvar_t sv_cullentities_nevercullbmodels = {0, "sv_cullentities_nevercullbmodels", "0", "if enabled the clients are always notified of moving doors and lifts and other submodels of world (warning: eats a lot of network bandwidth on some levels!)"};
55 static cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
56 static cvar_t sv_entpatch = {0, "sv_entpatch", "1", "enables loading of .ent files to override entities in the bsp (for example Threewave CTF server pack contains .ent patch files enabling play of CTF on id1 maps)"};
57
58 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
59 cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
60 cvar_t sv_gameplayfix_stepdown = {0, "sv_gameplayfix_stepdown", "0", "attempts to step down stairs, not just up them (prevents the familiar thud..thud..thud.. when running down stairs and slopes)"};
61 cvar_t sv_gameplayfix_stepwhilejumping = {0, "sv_gameplayfix_stepwhilejumping", "1", "applies step-up onto a ledge even while airborn, useful if you would otherwise just-miss the floor when running across small areas with gaps (for instance running across the moving platforms in dm2, or jumping to the megahealth and red armor in dm2 rather than using the bridge)"};
62 cvar_t sv_gameplayfix_swiminbmodels = {0, "sv_gameplayfix_swiminbmodels", "1", "causes pointcontents (used to determine if you are in a liquid) to check bmodel entities as well as the world model, so you can swim around in (possibly moving) water bmodel entities"};
63 cvar_t sv_gameplayfix_setmodelrealbox = {0, "sv_gameplayfix_setmodelrealbox", "1", "fixes a bug in Quake that made setmodel always set the entity box to ('-16 -16 -16', '16 16 16') rather than properly checking the model box, breaks some poorly coded mods"};
64 cvar_t sv_gameplayfix_blowupfallenzombies = {0, "sv_gameplayfix_blowupfallenzombies", "1", "causes findradius to detect SOLID_NOT entities such as zombies and corpses on the floor, allowing splash damage to apply to them"};
65 cvar_t sv_gameplayfix_findradiusdistancetobox = {0, "sv_gameplayfix_findradiusdistancetobox", "1", "causes findradius to check the distance to the corner of a box rather than the center of the box, makes findradius detect bmodels such as very large doors that would otherwise be unaffected by splash damage"};
66 cvar_t sv_gameplayfix_qwplayerphysics = {0, "sv_gameplayfix_qwplayerphysics", "1", "changes water jumping to make it easier to get out of water, and prevents friction on landing when bunnyhopping"};
67 cvar_t sv_gameplayfix_upwardvelocityclearsongroundflag = {0, "sv_gameplayfix_upwardvelocityclearsongroundflag", "1", "prevents monsters, items, and most other objects from being stuck to the floor when pushed around by damage, and other situations in mods"};
68 cvar_t sv_gameplayfix_droptofloorstartsolid = {0, "sv_gameplayfix_droptofloorstartsolid", "1", "prevents items and monsters that start in a solid area from falling out of the level (makes droptofloor treat trace_startsolid as an acceptable outcome)"};
69
70 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
71
72 // TODO: move these cvars here
73 extern cvar_t sv_clmovement_enable;
74 extern cvar_t sv_clmovement_minping;
75 extern cvar_t sv_clmovement_minping_disabletime;
76 extern cvar_t sv_clmovement_waitforinput;
77
78 server_t sv;
79 server_static_t svs;
80
81 mempool_t *sv_mempool = NULL;
82
83 //============================================================================
84
85 extern void SV_Phys_Init (void);
86 static void SV_SaveEntFile_f(void);
87 static void SV_StartDownload_f(void);
88 static void SV_Download_f(void);
89
90 void SV_AreaStats_f(void)
91 {
92         World_PrintAreaStats(&sv.world, "server");
93 }
94
95 /*
96 ===============
97 SV_Init
98 ===============
99 */
100 void SV_Init (void)
101 {
102         // init the csqc progs cvars, since they are updated/used by the server code
103         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
104         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
105         extern cvar_t csqc_progcrc;
106         extern cvar_t csqc_progsize;
107         Cvar_RegisterVariable (&csqc_progname);
108         Cvar_RegisterVariable (&csqc_progcrc);
109         Cvar_RegisterVariable (&csqc_progsize);
110
111         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
112         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
113         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
114         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
115         Cvar_RegisterVariable (&sv_maxvelocity);
116         Cvar_RegisterVariable (&sv_gravity);
117         Cvar_RegisterVariable (&sv_friction);
118         Cvar_RegisterVariable (&sv_waterfriction);
119         Cvar_RegisterVariable (&sv_edgefriction);
120         Cvar_RegisterVariable (&sv_stopspeed);
121         Cvar_RegisterVariable (&sv_maxspeed);
122         Cvar_RegisterVariable (&sv_maxairspeed);
123         Cvar_RegisterVariable (&sv_accelerate);
124         Cvar_RegisterVariable (&sv_airaccelerate);
125         Cvar_RegisterVariable (&sv_wateraccelerate);
126         Cvar_RegisterVariable (&sv_clmovement_enable);
127         Cvar_RegisterVariable (&sv_clmovement_minping);
128         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
129         Cvar_RegisterVariable (&sv_clmovement_waitforinput);
130         Cvar_RegisterVariable (&sv_idealpitchscale);
131         Cvar_RegisterVariable (&sv_aim);
132         Cvar_RegisterVariable (&sv_nostep);
133         Cvar_RegisterVariable (&sv_cullentities_pvs);
134         Cvar_RegisterVariable (&sv_cullentities_trace);
135         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
136         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
137         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
138         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
139         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
140         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
141         Cvar_RegisterVariable (&sv_cullentities_stats);
142         Cvar_RegisterVariable (&sv_entpatch);
143         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
144         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
145         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
146         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
147         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
148         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
149         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
150         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
151         Cvar_RegisterVariable (&sv_gameplayfix_qwplayerphysics);
152         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
153         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
154         Cvar_RegisterVariable (&sv_protocolname);
155         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
156         Cvar_RegisterVariable (&sv_maxrate);
157         Cvar_RegisterVariable (&sv_allowdownloads);
158         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
159         Cvar_RegisterVariable (&sv_allowdownloads_archive);
160         Cvar_RegisterVariable (&sv_allowdownloads_config);
161         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
162         Cvar_RegisterVariable (&sv_progs);
163
164         SV_VM_Init();
165         SV_Phys_Init();
166
167         sv_mempool = Mem_AllocPool("server", 0, NULL);
168 }
169
170 static void SV_SaveEntFile_f(void)
171 {
172         char basename[MAX_QPATH];
173         if (!sv.active || !sv.worldmodel)
174         {
175                 Con_Print("Not running a server\n");
176                 return;
177         }
178         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
179         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
180 }
181
182
183 /*
184 =============================================================================
185
186 EVENT MESSAGES
187
188 =============================================================================
189 */
190
191 /*
192 ==================
193 SV_StartParticle
194
195 Make sure the event gets sent to all clients
196 ==================
197 */
198 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
199 {
200         int i;
201
202         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
203                 return;
204         MSG_WriteByte (&sv.datagram, svc_particle);
205         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
206         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
207         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
208         for (i=0 ; i<3 ; i++)
209                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
210         MSG_WriteByte (&sv.datagram, count);
211         MSG_WriteByte (&sv.datagram, color);
212         SV_FlushBroadcastMessages();
213 }
214
215 /*
216 ==================
217 SV_StartEffect
218
219 Make sure the event gets sent to all clients
220 ==================
221 */
222 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
223 {
224         if (modelindex >= 256 || startframe >= 256)
225         {
226                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
227                         return;
228                 MSG_WriteByte (&sv.datagram, svc_effect2);
229                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
230                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
231                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
232                 MSG_WriteShort (&sv.datagram, modelindex);
233                 MSG_WriteShort (&sv.datagram, startframe);
234                 MSG_WriteByte (&sv.datagram, framecount);
235                 MSG_WriteByte (&sv.datagram, framerate);
236         }
237         else
238         {
239                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
240                         return;
241                 MSG_WriteByte (&sv.datagram, svc_effect);
242                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
243                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
244                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
245                 MSG_WriteByte (&sv.datagram, modelindex);
246                 MSG_WriteByte (&sv.datagram, startframe);
247                 MSG_WriteByte (&sv.datagram, framecount);
248                 MSG_WriteByte (&sv.datagram, framerate);
249         }
250         SV_FlushBroadcastMessages();
251 }
252
253 /*
254 ==================
255 SV_StartSound
256
257 Each entity can have eight independant sound sources, like voice,
258 weapon, feet, etc.
259
260 Channel 0 is an auto-allocate channel, the others override anything
261 already running on that entity/channel pair.
262
263 An attenuation of 0 will play full volume everywhere in the level.
264 Larger attenuations will drop off.  (max 4 attenuation)
265
266 ==================
267 */
268 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
269 {
270         int sound_num, field_mask, i, ent;
271
272         if (volume < 0 || volume > 255)
273         {
274                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
275                 return;
276         }
277
278         if (attenuation < 0 || attenuation > 4)
279         {
280                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
281                 return;
282         }
283
284         if (channel < 0 || channel > 7)
285         {
286                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
287                 return;
288         }
289
290         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
291                 return;
292
293 // find precache number for sound
294         sound_num = SV_SoundIndex(sample, 1);
295         if (!sound_num)
296                 return;
297
298         ent = PRVM_NUM_FOR_EDICT(entity);
299
300         field_mask = 0;
301         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
302                 field_mask |= SND_VOLUME;
303         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
304                 field_mask |= SND_ATTENUATION;
305         if (ent >= 8192)
306                 field_mask |= SND_LARGEENTITY;
307         if (sound_num >= 256 || channel >= 8)
308                 field_mask |= SND_LARGESOUND;
309
310 // directed messages go only to the entity they are targeted on
311         MSG_WriteByte (&sv.datagram, svc_sound);
312         MSG_WriteByte (&sv.datagram, field_mask);
313         if (field_mask & SND_VOLUME)
314                 MSG_WriteByte (&sv.datagram, volume);
315         if (field_mask & SND_ATTENUATION)
316                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
317         if (field_mask & SND_LARGEENTITY)
318         {
319                 MSG_WriteShort (&sv.datagram, ent);
320                 MSG_WriteByte (&sv.datagram, channel);
321         }
322         else
323                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
324         if (field_mask & SND_LARGESOUND)
325                 MSG_WriteShort (&sv.datagram, sound_num);
326         else
327                 MSG_WriteByte (&sv.datagram, sound_num);
328         for (i = 0;i < 3;i++)
329                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
330         SV_FlushBroadcastMessages();
331 }
332
333 /*
334 ==============================================================================
335
336 CLIENT SPAWNING
337
338 ==============================================================================
339 */
340
341 /*
342 ================
343 SV_SendServerinfo
344
345 Sends the first message from the server to a connected client.
346 This will be sent on the initial connection and upon each server load.
347 ================
348 */
349 void SV_SendServerinfo (client_t *client)
350 {
351         int i;
352         char message[128];
353
354         // we know that this client has a netconnection and thus is not a bot
355
356         // edicts get reallocated on level changes, so we need to update it here
357         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
358
359         // clear cached stuff that depends on the level
360         client->weaponmodel[0] = 0;
361         client->weaponmodelindex = 0;
362
363         // LordHavoc: clear entityframe tracking
364         client->latestframenum = 0;
365
366         if (client->entitydatabase)
367                 EntityFrame_FreeDatabase(client->entitydatabase);
368         if (client->entitydatabase4)
369                 EntityFrame4_FreeDatabase(client->entitydatabase4);
370         if (client->entitydatabase5)
371                 EntityFrame5_FreeDatabase(client->entitydatabase5);
372
373         memset(client->stats, 0, sizeof(client->stats));
374         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
375
376         if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE)
377         {
378                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
379                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
380                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
381                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
382                 else
383                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
384         }
385
386         SZ_Clear (&client->netconnection->message);
387         MSG_WriteByte (&client->netconnection->message, svc_print);
388         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
389         MSG_WriteString (&client->netconnection->message,message);
390
391         //[515]: init csprogs according to version of svprogs, check the crc, etc.
392         if (sv.csqc_progname[0])
393         {
394                 prvm_eval_t *val;
395                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
396                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
397                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
398                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
399                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
400                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
401                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
402                 //[515]: init stufftext string (it is sent before svc_serverinfo)
403                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
404                 if (val)
405                 {
406                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
407                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
408                 }
409         }
410
411         if (sv_allowdownloads.integer)
412         {
413                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
414                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1");
415         }
416
417         // send at this time so it's guaranteed to get executed at the right time
418         {
419                 client_t *save;
420                 save = host_client;
421                 host_client = client;
422                 Curl_SendRequirements();
423                 host_client = save;
424         }
425
426         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
427         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
428         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
429
430         if (!coop.integer && deathmatch.integer)
431                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
432         else
433                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
434
435         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
436
437         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
438                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
439         MSG_WriteByte (&client->netconnection->message, 0);
440
441         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
442                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
443         MSG_WriteByte (&client->netconnection->message, 0);
444
445 // send music
446         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
447         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
448         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
449
450 // set view
451         MSG_WriteByte (&client->netconnection->message, svc_setview);
452         MSG_WriteShort (&client->netconnection->message, PRVM_NUM_FOR_EDICT(client->edict));
453
454         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
455         MSG_WriteByte (&client->netconnection->message, 1);
456
457         client->spawned = false;                // need prespawn, spawn, etc
458
459         // clear movement info until client enters the new level properly
460         memset(&client->cmd, 0, sizeof(client->cmd));
461         client->movesequence = 0;
462 #ifdef NUM_PING_TIMES
463         for (i = 0;i < NUM_PING_TIMES;i++)
464                 client->ping_times[i] = 0;
465         client->num_pings = 0;
466 #endif
467         client->ping = 0;
468 }
469
470 /*
471 ================
472 SV_ConnectClient
473
474 Initializes a client_t for a new net connection.  This will only be called
475 once for a player each game, not once for each level change.
476 ================
477 */
478 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
479 {
480         client_t                *client;
481         int                             i;
482         float                   spawn_parms[NUM_SPAWN_PARMS];
483
484         client = svs.clients + clientnum;
485
486         if(netconnection)//[515]: bots don't play with csqc =)
487                 EntityFrameCSQC_InitClientVersions(clientnum, false);
488
489 // set up the client_t
490         if (sv.loadgame)
491                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
492         memset (client, 0, sizeof(*client));
493         client->active = true;
494         client->netconnection = netconnection;
495
496         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
497
498         strlcpy(client->name, "unconnected", sizeof(client->name));
499         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
500         client->spawned = false;
501         client->edict = PRVM_EDICT_NUM(clientnum+1);
502         if (client->netconnection)
503                 client->netconnection->message.allowoverflow = true;            // we can catch it
504         // prepare the unreliable message buffer
505         client->unreliablemsg.data = client->unreliablemsg_data;
506         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
507         // updated by receiving "rate" command from client
508         client->rate = NET_MINRATE;
509         // no limits for local player
510         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
511                 client->rate = 1000000000;
512         client->connecttime = realtime;
513
514         if (sv.loadgame)
515                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
516         else
517         {
518                 // call the progs to get default spawn parms for the new client
519                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
520                 prog->globals.server->self = 0;
521                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
522                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
523                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
524
525                 // set up the entity for this client (including .colormap, .team, etc)
526                 PRVM_ED_ClearEdict(client->edict);
527         }
528
529         // don't call SendServerinfo for a fresh botclient because its fields have
530         // not been set up by the qc yet
531         if (client->netconnection)
532                 SV_SendServerinfo (client);
533         else
534                 client->spawned = true;
535 }
536
537
538 /*
539 ===============================================================================
540
541 FRAME UPDATES
542
543 ===============================================================================
544 */
545
546 /*
547 =============================================================================
548
549 The PVS must include a small area around the client to allow head bobbing
550 or other small motion on the client side.  Otherwise, a bob might cause an
551 entity that should be visible to not show up, especially when the bob
552 crosses a waterline.
553
554 =============================================================================
555 */
556
557 int sv_writeentitiestoclient_pvsbytes;
558 unsigned char sv_writeentitiestoclient_pvs[MAX_MAP_LEAFS/8];
559
560 static int numsendentities;
561 static entity_state_t sendentities[MAX_EDICTS];
562 static entity_state_t *sendentitiesindex[MAX_EDICTS];
563
564 static int sententitiesmark = 0;
565 static int sententities[MAX_EDICTS];
566 static int sententitiesconsideration[MAX_EDICTS];
567 static int sv_writeentitiestoclient_culled_pvs;
568 static int sv_writeentitiestoclient_culled_trace;
569 static int sv_writeentitiestoclient_visibleentities;
570 static int sv_writeentitiestoclient_totalentities;
571 //static entity_frame_t sv_writeentitiestoclient_entityframe;
572 static int sv_writeentitiestoclient_clentnum;
573 static vec3_t sv_writeentitiestoclient_testeye;
574 static client_t *sv_writeentitiestoclient_client;
575
576 qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int e)
577 {
578         int i;
579         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
580         unsigned int customizeentityforclient;
581         float f;
582         vec3_t cullmins, cullmaxs;
583         model_t *model;
584         prvm_eval_t *val;
585
586         // EF_NODRAW prevents sending for any reason except for your own
587         // client, so we must keep all clients in this superset
588         effects = (unsigned)ent->fields.server->effects;
589
590         // we can omit invisible entities with no effects that are not clients
591         // LordHavoc: this could kill tags attached to an invisible entity, I
592         // just hope we never have to support that case
593         i = (int)ent->fields.server->modelindex;
594         modelindex = (i >= 1 && i < MAX_MODELS && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
595
596         flags = 0;
597         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
598         glowsize = (unsigned char)bound(0, i, 255);
599         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
600                 flags |= RENDER_GLOWTRAIL;
601
602         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
603         light[0] = (unsigned short)bound(0, f, 65535);
604         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
605         light[1] = (unsigned short)bound(0, f, 65535);
606         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
607         light[2] = (unsigned short)bound(0, f, 65535);
608         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
609         light[3] = (unsigned short)bound(0, f, 65535);
610         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
611         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
612
613         if (gamemode == GAME_TENEBRAE)
614         {
615                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
616                 if (effects & 16)
617                 {
618                         effects &= ~16;
619                         lightpflags |= PFLAGS_FULLDYNAMIC;
620                 }
621                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
622                 if (effects & 32)
623                 {
624                         effects &= ~32;
625                         light[0] = (int)(0.2*256);
626                         light[1] = (int)(1.0*256);
627                         light[2] = (int)(0.2*256);
628                         light[3] = 200;
629                         lightpflags |= PFLAGS_FULLDYNAMIC;
630                 }
631         }
632
633         specialvisibilityradius = 0;
634         if (lightpflags & PFLAGS_FULLDYNAMIC)
635                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
636         if (glowsize)
637                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
638         if (flags & RENDER_GLOWTRAIL)
639                 specialvisibilityradius = max(specialvisibilityradius, 100);
640         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
641         {
642                 if (effects & EF_BRIGHTFIELD)
643                         specialvisibilityradius = max(specialvisibilityradius, 80);
644                 if (effects & EF_MUZZLEFLASH)
645                         specialvisibilityradius = max(specialvisibilityradius, 100);
646                 if (effects & EF_BRIGHTLIGHT)
647                         specialvisibilityradius = max(specialvisibilityradius, 400);
648                 if (effects & EF_DIMLIGHT)
649                         specialvisibilityradius = max(specialvisibilityradius, 200);
650                 if (effects & EF_RED)
651                         specialvisibilityradius = max(specialvisibilityradius, 200);
652                 if (effects & EF_BLUE)
653                         specialvisibilityradius = max(specialvisibilityradius, 200);
654                 if (effects & EF_FLAME)
655                         specialvisibilityradius = max(specialvisibilityradius, 250);
656                 if (effects & EF_STARDUST)
657                         specialvisibilityradius = max(specialvisibilityradius, 100);
658         }
659
660         // early culling checks
661         // (final culling is done by SV_MarkWriteEntityStateToClient)
662         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
663         if (!customizeentityforclient)
664         {
665                 if (e > svs.maxclients && (!modelindex && !specialvisibilityradius))
666                         return false;
667                 // this 2 billion unit check is actually to detect NAN origins
668                 // (we really don't want to send those)
669                 if (VectorLength2(ent->fields.server->origin) > 2000000000.0*2000000000.0)
670                         return false;
671         }
672
673
674         *cs = defaultstate;
675         cs->active = true;
676         cs->number = e;
677         VectorCopy(ent->fields.server->origin, cs->origin);
678         VectorCopy(ent->fields.server->angles, cs->angles);
679         cs->flags = flags;
680         cs->effects = effects;
681         cs->colormap = (unsigned)ent->fields.server->colormap;
682         cs->modelindex = modelindex;
683         cs->skin = (unsigned)ent->fields.server->skin;
684         cs->frame = (unsigned)ent->fields.server->frame;
685         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
686         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
687         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
688         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
689         cs->customizeentityforclient = customizeentityforclient;
690         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
691         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
692         cs->glowsize = glowsize;
693
694         // don't need to init cs->colormod because the defaultstate did that for us
695         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
696         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
697         if (val->vector[0] || val->vector[1] || val->vector[2])
698         {
699                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
700                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
701                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
702         }
703
704         cs->modelindex = modelindex;
705
706         cs->alpha = 255;
707         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
708         if (f)
709         {
710                 i = (int)f;
711                 cs->alpha = (unsigned char)bound(0, i, 255);
712         }
713         // halflife
714         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
715         if (f)
716         {
717                 i = (int)f;
718                 cs->alpha = (unsigned char)bound(0, i, 255);
719         }
720
721         cs->scale = 16;
722         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
723         if (f)
724         {
725                 i = (int)f;
726                 cs->scale = (unsigned char)bound(0, i, 255);
727         }
728
729         cs->glowcolor = 254;
730         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
731         if (f)
732                 cs->glowcolor = (int)f;
733
734         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
735                 cs->effects |= EF_FULLBRIGHT;
736
737         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
738         if (val && val->_float)
739                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
740
741         if (ent->fields.server->movetype == MOVETYPE_STEP)
742                 cs->flags |= RENDER_STEP;
743         if (cs->number != sv_writeentitiestoclient_clentnum && (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)
744                 cs->flags |= RENDER_LOWPRECISION;
745         if (ent->fields.server->colormap >= 1024)
746                 cs->flags |= RENDER_COLORMAPPED;
747         if (cs->viewmodelforclient)
748                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
749
750         cs->light[0] = light[0];
751         cs->light[1] = light[1];
752         cs->light[2] = light[2];
753         cs->light[3] = light[3];
754         cs->lightstyle = lightstyle;
755         cs->lightpflags = lightpflags;
756
757         cs->specialvisibilityradius = specialvisibilityradius;
758
759         // calculate the visible box of this entity (don't use the physics box
760         // as that is often smaller than a model, and would not count
761         // specialvisibilityradius)
762         if ((model = sv.models[modelindex]))
763         {
764                 float scale = cs->scale * (1.0f / 16.0f);
765                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
766                 {
767                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
768                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
769                 }
770                 else if (cs->angles[1])
771                 {
772                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
773                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
774                 }
775                 else
776                 {
777                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
778                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
779                 }
780         }
781         else
782         {
783                 // if there is no model (or it could not be loaded), use the physics box
784                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
785                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
786         }
787         if (specialvisibilityradius)
788         {
789                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
790                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
791                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
792                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
793                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
794                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
795         }
796         // calculate center of bbox for network prioritization purposes
797         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
798         // if culling box has moved, update pvs cluster links
799         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
800         {
801                 VectorCopy(cullmins, ent->priv.server->cullmins);
802                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
803                 // a value of -1 for pvs_numclusters indicates that the links are not
804                 // cached, and should be re-tested each time, this is the case if the
805                 // culling box touches too many pvs clusters to store, or if the world
806                 // model does not support FindBoxClusters
807                 ent->priv.server->pvs_numclusters = -1;
808                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
809                 {
810                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
811                         if (i <= MAX_ENTITYCLUSTERS)
812                                 ent->priv.server->pvs_numclusters = i;
813                 }
814         }
815
816         return true;
817 }
818
819 void SV_PrepareEntitiesForSending(void)
820 {
821         int e;
822         prvm_edict_t *ent;
823         // send all entities that touch the pvs
824         numsendentities = 0;
825         sendentitiesindex[0] = NULL;
826         memset(sendentitiesindex, 0, prog->num_edicts * sizeof(entity_state_t *));
827         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
828         {
829                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sendentities + numsendentities, e))
830                 {
831                         sendentitiesindex[e] = sendentities + numsendentities;
832                         numsendentities++;
833                 }
834         }
835 }
836
837 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
838 {
839         int isbmodel;
840         model_t *model;
841         prvm_edict_t *ed;
842         if (sententitiesconsideration[s->number] == sententitiesmark)
843                 return;
844         sententitiesconsideration[s->number] = sententitiesmark;
845         sv_writeentitiestoclient_totalentities++;
846
847         if (s->customizeentityforclient)
848         {
849                 prog->globals.server->self = s->number;
850                 prog->globals.server->other = sv_writeentitiestoclient_clentnum;
851                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
852                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
853                         return;
854         }
855
856         // never reject player
857         if (s->number != sv_writeentitiestoclient_clentnum)
858         {
859                 // check various rejection conditions
860                 if (s->nodrawtoclient == sv_writeentitiestoclient_clentnum)
861                         return;
862                 if (s->drawonlytoclient && s->drawonlytoclient != sv_writeentitiestoclient_clentnum)
863                         return;
864                 if (s->effects & EF_NODRAW)
865                         return;
866                 // LordHavoc: only send entities with a model or important effects
867                 if (!s->modelindex && s->specialvisibilityradius == 0)
868                         return;
869
870                 isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
871                 // viewmodels don't have visibility checking
872                 if (s->viewmodelforclient)
873                 {
874                         if (s->viewmodelforclient != sv_writeentitiestoclient_clentnum)
875                                 return;
876                 }
877                 else if (s->tagentity)
878                 {
879                         // tag attached entities simply check their parent
880                         if (!sendentitiesindex[s->tagentity])
881                                 return;
882                         SV_MarkWriteEntityStateToClient(sendentitiesindex[s->tagentity]);
883                         if (sententities[s->tagentity] != sententitiesmark)
884                                 return;
885                 }
886                 // always send world submodels in newer protocols because they don't
887                 // generate much traffic (in old protocols they hog bandwidth)
888                 // but only if sv_cullentities_alwayssendbmodels is on
889                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
890                 {
891                         // entity has survived every check so far, check if visible
892                         ed = PRVM_EDICT_NUM(s->number);
893
894                         // if not touching a visible leaf
895                         if (sv_cullentities_pvs.integer && sv_writeentitiestoclient_pvsbytes)
896                         {
897                                 if (ed->priv.server->pvs_numclusters < 0)
898                                 {
899                                         // entity too big for clusters list
900                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv_writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
901                                         {
902                                                 sv_writeentitiestoclient_culled_pvs++;
903                                                 return;
904                                         }
905                                 }
906                                 else
907                                 {
908                                         int i;
909                                         // check cached clusters list
910                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
911                                                 if (CHECKPVSBIT(sv_writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
912                                                         break;
913                                         if (i == ed->priv.server->pvs_numclusters)
914                                         {
915                                                 sv_writeentitiestoclient_culled_pvs++;
916                                                 return;
917                                         }
918                                 }
919                         }
920
921                         // or not seen by random tracelines
922                         if (sv_cullentities_trace.integer && !isbmodel)
923                         {
924                                 int samples = s->specialvisibilityradius ? sv_cullentities_trace_samples_extra.integer : sv_cullentities_trace_samples.integer;
925                                 float enlarge = sv_cullentities_trace_enlarge.value;
926
927                                 qboolean visible = TRUE;
928
929                                 do
930                                 {
931                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv_writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
932                                                 break; // directly visible from the server's view
933
934                                         if(sv_cullentities_trace_prediction.integer)
935                                         {
936                                                 vec3_t predeye;
937
938                                                 // get player velocity
939                                                 float predtime = bound(0, host_client->ping, 0.2); // / 2
940                                                         // sorry, no wallhacking by high ping please, and at 200ms
941                                                         // ping a FPS is annoying to play anyway and a player is
942                                                         // likely to have changed his direction
943                                                 VectorMA(sv_writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
944                                                 if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv_writeentitiestoclient_testeye, predeye)) // must be able to go there...
945                                                 {
946                                                         if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
947                                                                 break; // directly visible from the predicted view
948                                                 }
949                                                 else
950                                                 {
951                                                         //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
952                                                 }
953                                         }
954
955                                         // when we get here, we can't see the entity
956                                         visible = FALSE;
957                                 }
958                                 while(0);
959
960                                 if(visible)
961                                         sv_writeentitiestoclient_client->visibletime[s->number] = realtime + sv_cullentities_trace_delay.value;
962
963                                 if (realtime > sv_writeentitiestoclient_client->visibletime[s->number])
964                                 {
965                                         sv_writeentitiestoclient_culled_trace++;
966                                         return;
967                                 }
968                         }
969                 }
970         }
971
972         // this just marks it for sending
973         // FIXME: it would be more efficient to send here, but the entity
974         // compressor isn't that flexible
975         sv_writeentitiestoclient_visibleentities++;
976         sententities[s->number] = sententitiesmark;
977 }
978
979 entity_state_t sendstates[MAX_EDICTS];
980 extern int csqc_clientnum;
981
982 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg)
983 {
984         int i, numsendstates;
985         entity_state_t *s;
986
987         // if there isn't enough space to accomplish anything, skip it
988         if (msg->cursize + 25 > msg->maxsize)
989                 return;
990
991         sv_writeentitiestoclient_client = client;
992
993         sv_writeentitiestoclient_culled_pvs = 0;
994         sv_writeentitiestoclient_culled_trace = 0;
995         sv_writeentitiestoclient_visibleentities = 0;
996         sv_writeentitiestoclient_totalentities = 0;
997
998 // find the client's PVS
999         // the real place being tested from
1000         VectorAdd(clent->fields.server->origin, clent->fields.server->view_ofs, sv_writeentitiestoclient_testeye);
1001         sv_writeentitiestoclient_pvsbytes = 0;
1002         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1003                 sv_writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv_writeentitiestoclient_testeye, 8, sv_writeentitiestoclient_pvs, sizeof(sv_writeentitiestoclient_pvs));
1004
1005         sv_writeentitiestoclient_clentnum = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1006         csqc_clientnum = sv_writeentitiestoclient_clentnum - 1;
1007
1008         sententitiesmark++;
1009
1010         for (i = 0;i < numsendentities;i++)
1011                 SV_MarkWriteEntityStateToClient(sendentities + i);
1012
1013         numsendstates = 0;
1014         for (i = 0;i < numsendentities;i++)
1015         {
1016                 if (sententities[sendentities[i].number] == sententitiesmark)
1017                 {
1018                         s = &sendstates[numsendstates++];
1019                         *s = sendentities[i];
1020                         if (s->exteriormodelforclient && s->exteriormodelforclient == sv_writeentitiestoclient_clentnum)
1021                                 s->flags |= RENDER_EXTERIORMODEL;
1022                 }
1023         }
1024
1025         if (sv_cullentities_stats.integer)
1026                 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);
1027
1028         EntityFrameCSQC_WriteFrame(msg, numsendstates, sendstates);
1029
1030         if (client->entitydatabase5)
1031                 EntityFrame5_WriteFrame(msg, client->entitydatabase5, numsendstates, sendstates, client - svs.clients + 1, client->movesequence);
1032         else if (client->entitydatabase4)
1033         {
1034                 EntityFrame4_WriteFrame(msg, client->entitydatabase4, numsendstates, sendstates);
1035                 Protocol_WriteStatsReliable();
1036         }
1037         else if (client->entitydatabase)
1038         {
1039                 EntityFrame_WriteFrame(msg, client->entitydatabase, numsendstates, sendstates, client - svs.clients + 1);
1040                 Protocol_WriteStatsReliable();
1041         }
1042         else
1043         {
1044                 EntityFrameQuake_WriteFrame(msg, numsendstates, sendstates);
1045                 Protocol_WriteStatsReliable();
1046         }
1047 }
1048
1049 /*
1050 =============
1051 SV_CleanupEnts
1052
1053 =============
1054 */
1055 void SV_CleanupEnts (void)
1056 {
1057         int             e;
1058         prvm_edict_t    *ent;
1059
1060         ent = PRVM_NEXT_EDICT(prog->edicts);
1061         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1062                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1063 }
1064
1065 /*
1066 ==================
1067 SV_WriteClientdataToMessage
1068
1069 ==================
1070 */
1071 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1072 {
1073         int             bits;
1074         int             i;
1075         prvm_edict_t    *other;
1076         int             items;
1077         prvm_eval_t     *val;
1078         vec3_t  punchvector;
1079         int             viewzoom;
1080         const char *s;
1081
1082 //
1083 // send a damage message
1084 //
1085         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1086         {
1087                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1088                 MSG_WriteByte (msg, svc_damage);
1089                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1090                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1091                 for (i=0 ; i<3 ; i++)
1092                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1093
1094                 ent->fields.server->dmg_take = 0;
1095                 ent->fields.server->dmg_save = 0;
1096         }
1097
1098 //
1099 // send the current viewpos offset from the view entity
1100 //
1101         SV_SetIdealPitch ();            // how much to look up / down ideally
1102
1103 // a fixangle might get lost in a dropped packet.  Oh well.
1104         if(ent->fields.server->fixangle)
1105         {
1106                 // angle fixing was requested by global thinking code...
1107                 // so store the current angles for later use
1108                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1109                 host_client->fixangle_angles_set = TRUE;
1110
1111                 // and clear fixangle for the next frame
1112                 ent->fields.server->fixangle = 0;
1113         }
1114
1115         if (host_client->fixangle_angles_set)
1116         {
1117                 MSG_WriteByte (msg, svc_setangle);
1118                 for (i=0 ; i < 3 ; i++)
1119                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1120                 host_client->fixangle_angles_set = FALSE;
1121         }
1122
1123         // stuff the sigil bits into the high bits of items for sbar, or else
1124         // mix in items2
1125         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1126         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1127                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1128         else
1129                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1130
1131         VectorClear(punchvector);
1132         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1133                 VectorCopy(val->vector, punchvector);
1134
1135         // cache weapon model name and index in client struct to save time
1136         // (this search can be almost 1% of cpu time!)
1137         s = PRVM_GetString(ent->fields.server->weaponmodel);
1138         if (strcmp(s, client->weaponmodel))
1139         {
1140                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1141                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1142         }
1143
1144         viewzoom = 255;
1145         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1146                 viewzoom = (int)(val->_float * 255.0f);
1147         if (viewzoom == 0)
1148                 viewzoom = 255;
1149
1150         bits = 0;
1151
1152         if ((int)ent->fields.server->flags & FL_ONGROUND)
1153                 bits |= SU_ONGROUND;
1154         if (ent->fields.server->waterlevel >= 2)
1155                 bits |= SU_INWATER;
1156         if (ent->fields.server->idealpitch)
1157                 bits |= SU_IDEALPITCH;
1158
1159         for (i=0 ; i<3 ; i++)
1160         {
1161                 if (ent->fields.server->punchangle[i])
1162                         bits |= (SU_PUNCH1<<i);
1163                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE)
1164                         if (punchvector[i])
1165                                 bits |= (SU_PUNCHVEC1<<i);
1166                 if (ent->fields.server->velocity[i])
1167                         bits |= (SU_VELOCITY1<<i);
1168         }
1169
1170         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1171         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1172         stats[STAT_ITEMS] = items;
1173         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1174         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1175         stats[STAT_WEAPON] = client->weaponmodelindex;
1176         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1177         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1178         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1179         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1180         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1181         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1182         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1183         stats[STAT_VIEWZOOM] = viewzoom;
1184         stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
1185         stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
1186         // the QC bumps these itself by sending svc_'s, so we have to keep them
1187         // zero or they'll be corrected by the engine
1188         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1189         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1190
1191         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1192         {
1193                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1194                 bits |= SU_ITEMS;
1195                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1196                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1197                 bits |= SU_WEAPON;
1198                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1199                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1200                         if (viewzoom != 255)
1201                                 bits |= SU_VIEWZOOM;
1202         }
1203
1204         if (bits >= 65536)
1205                 bits |= SU_EXTEND1;
1206         if (bits >= 16777216)
1207                 bits |= SU_EXTEND2;
1208
1209         // send the data
1210         MSG_WriteByte (msg, svc_clientdata);
1211         MSG_WriteShort (msg, bits);
1212         if (bits & SU_EXTEND1)
1213                 MSG_WriteByte(msg, bits >> 16);
1214         if (bits & SU_EXTEND2)
1215                 MSG_WriteByte(msg, bits >> 24);
1216
1217         if (bits & SU_VIEWHEIGHT)
1218                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1219
1220         if (bits & SU_IDEALPITCH)
1221                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1222
1223         for (i=0 ; i<3 ; i++)
1224         {
1225                 if (bits & (SU_PUNCH1<<i))
1226                 {
1227                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
1228                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
1229                         else
1230                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
1231                 }
1232                 if (bits & (SU_PUNCHVEC1<<i))
1233                 {
1234                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1235                                 MSG_WriteCoord16i(msg, punchvector[i]);
1236                         else
1237                                 MSG_WriteCoord32f(msg, punchvector[i]);
1238                 }
1239                 if (bits & (SU_VELOCITY1<<i))
1240                 {
1241                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1242                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
1243                         else
1244                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
1245                 }
1246         }
1247
1248         if (bits & SU_ITEMS)
1249                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
1250
1251         if (sv.protocol == PROTOCOL_DARKPLACES5)
1252         {
1253                 if (bits & SU_WEAPONFRAME)
1254                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
1255                 if (bits & SU_ARMOR)
1256                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
1257                 if (bits & SU_WEAPON)
1258                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
1259                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1260                 MSG_WriteShort (msg, stats[STAT_AMMO]);
1261                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
1262                 MSG_WriteShort (msg, stats[STAT_NAILS]);
1263                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
1264                 MSG_WriteShort (msg, stats[STAT_CELLS]);
1265                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
1266                 if (bits & SU_VIEWZOOM)
1267                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1268         }
1269         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1270         {
1271                 if (bits & SU_WEAPONFRAME)
1272                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
1273                 if (bits & SU_ARMOR)
1274                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
1275                 if (bits & SU_WEAPON)
1276                         MSG_WriteByte (msg, stats[STAT_WEAPON]);
1277                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
1278                 MSG_WriteByte (msg, stats[STAT_AMMO]);
1279                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
1280                 MSG_WriteByte (msg, stats[STAT_NAILS]);
1281                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
1282                 MSG_WriteByte (msg, stats[STAT_CELLS]);
1283                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
1284                 {
1285                         for (i = 0;i < 32;i++)
1286                                 if (stats[STAT_WEAPON] & (1<<i))
1287                                         break;
1288                         MSG_WriteByte (msg, i);
1289                 }
1290                 else
1291                         MSG_WriteByte (msg, stats[STAT_WEAPON]);
1292                 if (bits & SU_VIEWZOOM)
1293                 {
1294                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1295                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
1296                         else
1297                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
1298                 }
1299         }
1300 }
1301
1302 void SV_FlushBroadcastMessages(void)
1303 {
1304         int i;
1305         client_t *client;
1306         if (sv.datagram.cursize <= 0)
1307                 return;
1308         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
1309         {
1310                 if (!client->spawned || !client->netconnection || client->unreliablemsg.cursize + sv.datagram.cursize > client->unreliablemsg.maxsize || client->unreliablemsg_splitpoints >= (int)(sizeof(client->unreliablemsg_splitpoint)/sizeof(client->unreliablemsg_splitpoint[0])))
1311                         continue;
1312                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
1313                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
1314         }
1315         SZ_Clear(&sv.datagram);
1316 }
1317
1318 void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg)
1319 {
1320         // scan the splitpoints to find out how many we can fit in
1321         int numsegments, j, split;
1322         if (!client->unreliablemsg_splitpoints)
1323                 return;
1324         // always accept the first one if it's within 1400 bytes, this ensures
1325         // that very big datagrams which are over the rate limit still get
1326         // through, just to keep it working
1327         if (msg->cursize + client->unreliablemsg_splitpoint[0] > msg->maxsize && msg->maxsize < 1400)
1328         {
1329                 numsegments = 1;
1330                 msg->maxsize = 1400;
1331         }
1332         else
1333                 for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
1334                         if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > msg->maxsize)
1335                                 break;
1336         if (numsegments > 0)
1337         {
1338                 // some will fit, so add the ones that will fit
1339                 split = client->unreliablemsg_splitpoint[numsegments-1];
1340                 // note this discards ones that were accepted by the segments scan but
1341                 // can not fit, such as a really huge first one that will never ever
1342                 // fit in a packet...
1343                 if (msg->cursize + split <= msg->maxsize)
1344                         SZ_Write(msg, client->unreliablemsg.data, split);
1345                 // remove the part we sent, keeping any remaining data
1346                 client->unreliablemsg.cursize -= split;
1347                 if (client->unreliablemsg.cursize > 0)
1348                         memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
1349                 // adjust remaining splitpoints
1350                 client->unreliablemsg_splitpoints -= numsegments;
1351                 for (j = 0;j < client->unreliablemsg_splitpoints;j++)
1352                         client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
1353         }
1354 }
1355
1356 /*
1357 =======================
1358 SV_SendClientDatagram
1359 =======================
1360 */
1361 static unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE]; // FIXME?
1362 void SV_SendClientDatagram (client_t *client)
1363 {
1364         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
1365         sizebuf_t msg;
1366         int stats[MAX_CL_STATS];
1367
1368         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
1369         maxrate = max(NET_MINRATE, sv_maxrate.integer);
1370         if (sv_maxrate.integer != maxrate)
1371                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
1372         // clientrate determines the 'cleartime' of a packet
1373         // (how long to wait before sending another, based on this packet's size)
1374         clientrate = bound(NET_MINRATE, client->rate, maxrate);
1375
1376         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
1377         {
1378                 // for good singleplayer, send huge packets and never limit frequency
1379                 clientrate = 1000000000;
1380                 maxsize = sizeof(sv_sendclientdatagram_buf);
1381                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
1382         }
1383         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
1384         {
1385                 // no packet size limit support on older protocols because DP1-4 kick
1386                 // the client off if they overflow, and quake protocol shows less than
1387                 // the full entity set if rate limited
1388                 maxsize = 1400;
1389                 maxsize2 = 1400;
1390         }
1391         else
1392         {
1393                 // DP5 and later protocols support packet size limiting which is a
1394                 // better method than limiting packet frequency as QW does
1395                 //
1396                 // this rate limiting does not understand sys_ticrate 0
1397                 // (but no one should be running that on a server!)
1398                 maxsize = (int)(clientrate * sys_ticrate.value);
1399                 maxsize = bound(100, maxsize, 1400);
1400                 maxsize2 = 1400;
1401         }
1402
1403         // while downloading, limit entity updates to half the packet
1404         // (any leftover space will be used for downloading)
1405         if (host_client->download_file)
1406                 maxsize /= 2;
1407
1408         msg.data = sv_sendclientdatagram_buf;
1409         msg.maxsize = maxsize;
1410         msg.cursize = 0;
1411
1412         // obey rate limit by limiting packet frequency if the packet size
1413         // limiting fails
1414         // (usually this is caused by reliable messages)
1415         if (!NetConn_CanSend(client->netconnection))
1416         {
1417                 // send the datagram
1418                 //NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate);
1419                 return;
1420         }
1421         else if (host_client->spawned)
1422         {
1423                 MSG_WriteByte (&msg, svc_time);
1424                 MSG_WriteFloat (&msg, sv.time);
1425
1426                 // add the client specific data to the datagram
1427                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
1428                 // now update the stats[] array using any registered custom fields
1429                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
1430                 // set host_client->statsdeltabits
1431                 Protocol_UpdateClientStats (stats);
1432
1433                 // add as many queued unreliable messages (effects) as we can fit
1434                 // limit effects to half of the remaining space
1435                 msg.maxsize -= (msg.maxsize - msg.cursize) / 2;
1436                 if (client->unreliablemsg.cursize)
1437                         SV_WriteUnreliableMessages (client, &msg);
1438
1439                 msg.maxsize = maxsize;
1440
1441                 // now write as many entities as we can fit, and also sends stats
1442                 SV_WriteEntitiesToClient (client, client->edict, &msg);
1443         }
1444         else if (realtime > client->keepalivetime)
1445         {
1446                 // the player isn't totally in the game yet
1447                 // send small keepalive messages if too much time has passed
1448                 msg.maxsize = maxsize2;
1449                 client->keepalivetime = realtime + 5;
1450                 MSG_WriteChar (&msg, svc_nop);
1451         }
1452
1453         msg.maxsize = maxsize2;
1454
1455         // if a download is active, see if there is room to fit some download data
1456         // in this packet
1457         downloadsize = maxsize * 2 - msg.cursize - 7;
1458         if (host_client->download_file && host_client->download_started && downloadsize > 0)
1459         {
1460                 fs_offset_t downloadstart;
1461                 unsigned char data[1400];
1462                 downloadstart = FS_Tell(host_client->download_file);
1463                 downloadsize = min(downloadsize, (int)sizeof(data));
1464                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
1465                 // note this sends empty messages if at the end of the file, which is
1466                 // necessary to keep the packet loss logic working
1467                 // (the last blocks may be lost and need to be re-sent, and that will
1468                 //  only occur if the client acks the empty end messages, revealing
1469                 //  a gap in the download progress, causing the last blocks to be
1470                 //  sent again)
1471                 MSG_WriteChar (&msg, svc_downloaddata);
1472                 MSG_WriteLong (&msg, downloadstart);
1473                 MSG_WriteShort (&msg, downloadsize);
1474                 if (downloadsize > 0)
1475                         SZ_Write (&msg, data, downloadsize);
1476         }
1477
1478 // send the datagram
1479         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate);
1480 }
1481
1482 /*
1483 =======================
1484 SV_UpdateToReliableMessages
1485 =======================
1486 */
1487 void SV_UpdateToReliableMessages (void)
1488 {
1489         int i, j;
1490         client_t *client;
1491         prvm_eval_t *val;
1492         const char *name;
1493         const char *model;
1494         const char *skin;
1495
1496 // check for changes to be sent over the reliable streams
1497         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1498         {
1499                 // update the host_client fields we care about according to the entity fields
1500                 host_client->edict = PRVM_EDICT_NUM(i+1);
1501
1502                 // DP_SV_CLIENTNAME
1503                 name = PRVM_GetString(host_client->edict->fields.server->netname);
1504                 if (name == NULL)
1505                         name = "";
1506                 // always point the string back at host_client->name to keep it safe
1507                 strlcpy (host_client->name, name, sizeof (host_client->name));
1508                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
1509                 if (strcmp(host_client->old_name, host_client->name))
1510                 {
1511                         if (host_client->spawned)
1512                                 SV_BroadcastPrintf("%s^%i changed name to %s\n", host_client->old_name, STRING_COLOR_DEFAULT, host_client->name);
1513                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
1514                         // send notification to all clients
1515                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
1516                         MSG_WriteByte (&sv.reliable_datagram, i);
1517                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
1518                 }
1519
1520                 // DP_SV_CLIENTCOLORS
1521                 // this is always found (since it's added by the progs loader)
1522                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
1523                         host_client->colors = (int)val->_float;
1524                 if (host_client->old_colors != host_client->colors)
1525                 {
1526                         host_client->old_colors = host_client->colors;
1527                         // send notification to all clients
1528                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
1529                         MSG_WriteByte (&sv.reliable_datagram, i);
1530                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
1531                 }
1532
1533                 // NEXUIZ_PLAYERMODEL
1534                 if( prog->fieldoffsets.playermodel >= 0 ) {
1535                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
1536                         if (model == NULL)
1537                                 model = "";
1538                         // always point the string back at host_client->name to keep it safe
1539                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
1540                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
1541                 }
1542
1543                 // NEXUIZ_PLAYERSKIN
1544                 if( prog->fieldoffsets.playerskin >= 0 ) {
1545                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
1546                         if (skin == NULL)
1547                                 skin = "";
1548                         // always point the string back at host_client->name to keep it safe
1549                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
1550                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
1551                 }
1552
1553                 // frags
1554                 host_client->frags = (int)host_client->edict->fields.server->frags;
1555                 if (host_client->old_frags != host_client->frags)
1556                 {
1557                         host_client->old_frags = host_client->frags;
1558                         // send notification to all clients
1559                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
1560                         MSG_WriteByte (&sv.reliable_datagram, i);
1561                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
1562                 }
1563         }
1564
1565         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
1566                 if (client->netconnection)
1567                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
1568
1569         SZ_Clear (&sv.reliable_datagram);
1570 }
1571
1572
1573 /*
1574 =======================
1575 SV_SendClientMessages
1576 =======================
1577 */
1578 void SV_SendClientMessages (void)
1579 {
1580         int i, prepared = false;
1581
1582         if (sv.protocol == PROTOCOL_QUAKEWORLD)
1583                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
1584
1585         SV_FlushBroadcastMessages();
1586
1587 // update frags, names, etc
1588         SV_UpdateToReliableMessages();
1589
1590 // build individual updates
1591         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
1592         {
1593                 if (!host_client->active)
1594                         continue;
1595                 if (!host_client->netconnection)
1596                         continue;
1597
1598                 if (host_client->netconnection->message.overflowed)
1599                 {
1600                         SV_DropClient (true);   // if the message couldn't send, kick off
1601                         continue;
1602                 }
1603
1604                 if (!prepared)
1605                 {
1606                         prepared = true;
1607                         // only prepare entities once per frame
1608                         SV_PrepareEntitiesForSending();
1609                 }
1610                 SV_SendClientDatagram (host_client);
1611         }
1612
1613 // clear muzzle flashes
1614         SV_CleanupEnts();
1615 }
1616
1617 void SV_StartDownload_f(void)
1618 {
1619         if (host_client->download_file)
1620                 host_client->download_started = true;
1621 }
1622
1623 void SV_Download_f(void)
1624 {
1625         const char *whichpack, *whichpack2, *extension;
1626
1627         if (Cmd_Argc() != 2)
1628         {
1629                 SV_ClientPrintf("usage: download <filename>\n");
1630                 return;
1631         }
1632
1633         if (FS_CheckNastyPath(Cmd_Argv(1), false))
1634         {
1635                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
1636                 return;
1637         }
1638
1639         if (host_client->download_file)
1640         {
1641                 // at this point we'll assume the previous download should be aborted
1642                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
1643                 Host_ClientCommands("\nstopdownload\n");
1644
1645                 // close the file and reset variables
1646                 FS_Close(host_client->download_file);
1647                 host_client->download_file = NULL;
1648                 host_client->download_name[0] = 0;
1649                 host_client->download_expectedposition = 0;
1650                 host_client->download_started = false;
1651         }
1652
1653         if (!sv_allowdownloads.integer)
1654         {
1655                 SV_ClientPrintf("Downloads are disabled on this server\n");
1656                 Host_ClientCommands("\nstopdownload\n");
1657                 return;
1658         }
1659
1660         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
1661         extension = FS_FileExtension(host_client->download_name);
1662
1663         // host_client is asking to download a specified file
1664         if (developer.integer >= 100)
1665                 Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
1666
1667         if (!FS_FileExists(host_client->download_name))
1668         {
1669                 SV_ClientPrintf("Download rejected: server does not have the file \"%s\"\nYou may need to separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
1670                 Host_ClientCommands("\nstopdownload\n");
1671                 return;
1672         }
1673
1674         // check if the user is trying to download part of registered Quake(r)
1675         whichpack = FS_WhichPack(host_client->download_name);
1676         whichpack2 = FS_WhichPack("gfx/pop.lmp");
1677         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
1678         {
1679                 SV_ClientPrintf("Download rejected: file \"%s\" is part of registered Quake(r)\nYou must purchase Quake(r) from id Software or a retailer to get this file\nPlease go to http://www.idsoftware.com/games/quake/quake/index.php?game_section=buy\n", host_client->download_name);
1680                 Host_ClientCommands("\nstopdownload\n");
1681                 return;
1682         }
1683
1684         // check if the server has forbidden archive downloads entirely
1685         if (!sv_allowdownloads_inarchive.integer)
1686         {
1687                 whichpack = FS_WhichPack(host_client->download_name);
1688                 if (whichpack)
1689                 {
1690                         SV_ClientPrintf("Download rejected: file \"%s\" is in an archive (\"%s\")\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name, whichpack);
1691                         Host_ClientCommands("\nstopdownload\n");
1692                         return;
1693                 }
1694         }
1695
1696         if (!sv_allowdownloads_config.integer)
1697         {
1698                 if (!strcasecmp(extension, "cfg"))
1699                 {
1700                         SV_ClientPrintf("Download rejected: file \"%s\" is a .cfg file which is forbidden for security reasons\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
1701                         Host_ClientCommands("\nstopdownload\n");
1702                         return;
1703                 }
1704         }
1705
1706         if (!sv_allowdownloads_dlcache.integer)
1707         {
1708                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
1709                 {
1710                         SV_ClientPrintf("Download rejected: file \"%s\" is in the dlcache/ directory which is forbidden for security reasons\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
1711                         Host_ClientCommands("\nstopdownload\n");
1712                         return;
1713                 }
1714         }
1715
1716         if (!sv_allowdownloads_archive.integer)
1717         {
1718                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
1719                 {
1720                         SV_ClientPrintf("Download rejected: file \"%s\" is an archive\nYou must separately download or purchase the data archives for this game/mod to get this file\n", host_client->download_name);
1721                         Host_ClientCommands("\nstopdownload\n");
1722                         return;
1723                 }
1724         }
1725
1726         host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
1727         if (!host_client->download_file)
1728         {
1729                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
1730                 Host_ClientCommands("\nstopdownload\n");
1731                 return;
1732         }
1733
1734         if (FS_FileSize(host_client->download_file) > 1<<30)
1735         {
1736                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
1737                 Host_ClientCommands("\nstopdownload\n");
1738                 FS_Close(host_client->download_file);
1739                 host_client->download_file = NULL;
1740                 return;
1741         }
1742
1743         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
1744
1745         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
1746
1747         host_client->download_expectedposition = 0;
1748         host_client->download_started = false;
1749
1750         // the rest of the download process is handled in SV_SendClientDatagram
1751         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
1752         //
1753         // no svc_downloaddata messages will be sent until sv_startdownload is
1754         // sent by the client
1755 }
1756
1757 /*
1758 ==============================================================================
1759
1760 SERVER SPAWNING
1761
1762 ==============================================================================
1763 */
1764
1765 /*
1766 ================
1767 SV_ModelIndex
1768
1769 ================
1770 */
1771 int SV_ModelIndex(const char *s, int precachemode)
1772 {
1773         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE) ? 256 : MAX_MODELS);
1774         char filename[MAX_QPATH];
1775         if (!s || !*s)
1776                 return 0;
1777         // testing
1778         //if (precachemode == 2)
1779         //      return 0;
1780         strlcpy(filename, s, sizeof(filename));
1781         for (i = 2;i < limit;i++)
1782         {
1783                 if (!sv.model_precache[i][0])
1784                 {
1785                         if (precachemode)
1786                         {
1787                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
1788                                 {
1789                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
1790                                         return 0;
1791                                 }
1792                                 if (precachemode == 1)
1793                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
1794                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
1795                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
1796                                 if (sv.state != ss_loading)
1797                                 {
1798                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
1799                                         MSG_WriteShort(&sv.reliable_datagram, i);
1800                                         MSG_WriteString(&sv.reliable_datagram, filename);
1801                                 }
1802                                 return i;
1803                         }
1804                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
1805                         return 0;
1806                 }
1807                 if (!strcmp(sv.model_precache[i], filename))
1808                         return i;
1809         }
1810         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
1811         return 0;
1812 }
1813
1814 /*
1815 ================
1816 SV_SoundIndex
1817
1818 ================
1819 */
1820 int SV_SoundIndex(const char *s, int precachemode)
1821 {
1822         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE) ? 256 : MAX_SOUNDS);
1823         char filename[MAX_QPATH];
1824         if (!s || !*s)
1825                 return 0;
1826         // testing
1827         //if (precachemode == 2)
1828         //      return 0;
1829         strlcpy(filename, s, sizeof(filename));
1830         for (i = 1;i < limit;i++)
1831         {
1832                 if (!sv.sound_precache[i][0])
1833                 {
1834                         if (precachemode)
1835                         {
1836                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
1837                                 {
1838                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
1839                                         return 0;
1840                                 }
1841                                 if (precachemode == 1)
1842                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
1843                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
1844                                 if (sv.state != ss_loading)
1845                                 {
1846                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
1847                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
1848                                         MSG_WriteString(&sv.reliable_datagram, filename);
1849                                 }
1850                                 return i;
1851                         }
1852                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
1853                         return 0;
1854                 }
1855                 if (!strcmp(sv.sound_precache[i], filename))
1856                         return i;
1857         }
1858         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
1859         return 0;
1860 }
1861
1862 // MUST match effectnameindex_t in client.h
1863 static const char *standardeffectnames[EFFECT_TOTAL] =
1864 {
1865         "",
1866         "TE_GUNSHOT",
1867         "TE_GUNSHOTQUAD",
1868         "TE_SPIKE",
1869         "TE_SPIKEQUAD",
1870         "TE_SUPERSPIKE",
1871         "TE_SUPERSPIKEQUAD",
1872         "TE_WIZSPIKE",
1873         "TE_KNIGHTSPIKE",
1874         "TE_EXPLOSION",
1875         "TE_EXPLOSIONQUAD",
1876         "TE_TAREXPLOSION",
1877         "TE_TELEPORT",
1878         "TE_LAVASPLASH",
1879         "TE_SMALLFLASH",
1880         "TE_FLAMEJET",
1881         "EF_FLAME",
1882         "TE_BLOOD",
1883         "TE_SPARK",
1884         "TE_PLASMABURN",
1885         "TE_TEI_G3",
1886         "TE_TEI_SMOKE",
1887         "TE_TEI_BIGEXPLOSION",
1888         "TE_TEI_PLASMAHIT",
1889         "EF_STARDUST",
1890         "TR_ROCKET",
1891         "TR_GRENADE",
1892         "TR_BLOOD",
1893         "TR_WIZSPIKE",
1894         "TR_SLIGHTBLOOD",
1895         "TR_KNIGHTSPIKE",
1896         "TR_VORESPIKE",
1897         "TR_NEHAHRASMOKE",
1898         "TR_NEXUIZPLASMA",
1899         "TR_GLOWTRAIL",
1900         "SVC_PARTICLE"
1901 };
1902
1903 /*
1904 ================
1905 SV_ParticleEffectIndex
1906
1907 ================
1908 */
1909 int SV_ParticleEffectIndex(const char *name)
1910 {
1911         int i, argc, linenumber, effectnameindex;
1912         fs_offset_t filesize;
1913         unsigned char *filedata;
1914         const char *text, *textstart, *textend;
1915         char argv[16][1024];
1916         if (!sv.particleeffectnamesloaded)
1917         {
1918                 sv.particleeffectnamesloaded = true;
1919                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
1920                 for (i = 0;i < EFFECT_TOTAL;i++)
1921                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
1922                 filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
1923                 if (filedata)
1924                 {
1925                         textstart = (const char *)filedata;
1926                         textend = (const char *)filedata + filesize;
1927                         text = textstart;
1928                         for (linenumber = 1;;linenumber++)
1929                         {
1930                                 argc = 0;
1931                                 for (;;)
1932                                 {
1933                                         if (!COM_ParseToken(&text, true) || !strcmp(com_token, "\n"))
1934                                                 break;
1935                                         if (argc < 16)
1936                                         {
1937                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
1938                                                 argc++;
1939                                         }
1940                                 }
1941                                 if (com_token[0] == 0)
1942                                         break; // if the loop exited and it's not a \n, it's EOF
1943                                 if (argc < 1)
1944                                         continue;
1945                                 if (!strcmp(argv[0], "effect"))
1946                                 {
1947                                         if (argc == 2)
1948                                         {
1949                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
1950                                                 {
1951                                                         if (sv.particleeffectname[effectnameindex][0])
1952                                                         {
1953                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
1954                                                                         break;
1955                                                         }
1956                                                         else
1957                                                         {
1958                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
1959                                                                 break;
1960                                                         }
1961                                                 }
1962                                                 // if we run out of names, abort
1963                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
1964                                                 {
1965                                                         Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
1966                                                         break;
1967                                                 }
1968                                         }
1969                                 }
1970                         }
1971                         Mem_Free(filedata);
1972                 }
1973         }
1974         // search for the name
1975         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
1976                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
1977                         return effectnameindex;
1978         // return 0 if we couldn't find it
1979         return 0;
1980 }
1981
1982 /*
1983 ================
1984 SV_CreateBaseline
1985
1986 ================
1987 */
1988 void SV_CreateBaseline (void)
1989 {
1990         int i, entnum, large;
1991         prvm_edict_t *svent;
1992
1993         // LordHavoc: clear *all* states (note just active ones)
1994         for (entnum = 0;entnum < prog->max_edicts;entnum++)
1995         {
1996                 // get the current server version
1997                 svent = PRVM_EDICT_NUM(entnum);
1998
1999                 // LordHavoc: always clear state values, whether the entity is in use or not
2000                 svent->priv.server->baseline = defaultstate;
2001
2002                 if (svent->priv.server->free)
2003                         continue;
2004                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2005                         continue;
2006
2007                 // create entity baseline
2008                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2009                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2010                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2011                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2012                 if (entnum > 0 && entnum <= svs.maxclients)
2013                 {
2014                         svent->priv.server->baseline.colormap = entnum;
2015                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2016                 }
2017                 else
2018                 {
2019                         svent->priv.server->baseline.colormap = 0;
2020                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2021                 }
2022
2023                 large = false;
2024                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2025                         large = true;
2026
2027                 // add to the message
2028                 if (large)
2029                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2030                 else
2031                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2032                 MSG_WriteShort (&sv.signon, entnum);
2033
2034                 if (large)
2035                 {
2036                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2037                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2038                 }
2039                 else
2040                 {
2041                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2042                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2043                 }
2044                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2045                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2046                 for (i=0 ; i<3 ; i++)
2047                 {
2048                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2049                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2050                 }
2051         }
2052 }
2053
2054
2055 /*
2056 ================
2057 SV_SaveSpawnparms
2058
2059 Grabs the current state of each client for saving across the
2060 transition to another level
2061 ================
2062 */
2063 void SV_SaveSpawnparms (void)
2064 {
2065         int             i, j;
2066
2067         svs.serverflags = (int)prog->globals.server->serverflags;
2068
2069         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2070         {
2071                 if (!host_client->active)
2072                         continue;
2073
2074         // call the progs to get default spawn parms for the new client
2075                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2076                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
2077                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
2078                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
2079         }
2080 }
2081 /*
2082 void SV_IncreaseEdicts(void)
2083 {
2084         int i;
2085         prvm_edict_t *ent;
2086         int oldmax_edicts = prog->max_edicts;
2087         void *oldedictsengineprivate = prog->edictprivate;
2088         void *oldedictsfields = prog->edictsfields;
2089         void *oldmoved_edicts = sv.moved_edicts;
2090
2091         if (prog->max_edicts >= MAX_EDICTS)
2092                 return;
2093
2094         // links don't survive the transition, so unlink everything
2095         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2096         {
2097                 if (!ent->priv.server->free)
2098                         SV_UnlinkEdict(prog->edicts + i);
2099                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
2100         }
2101         World_Clear(&sv.world);
2102
2103         prog->max_edicts   = min(prog->max_edicts + 256, MAX_EDICTS);
2104         prog->edictprivate = PR_Alloc(prog->max_edicts * sizeof(edict_engineprivate_t));
2105         prog->edictsfields = PR_Alloc(prog->max_edicts * prog->edict_size);
2106         sv.moved_edicts = PR_Alloc(prog->max_edicts * sizeof(prvm_edict_t *));
2107
2108         memcpy(prog->edictprivate, oldedictsengineprivate, oldmax_edicts * sizeof(edict_engineprivate_t));
2109         memcpy(prog->edictsfields, oldedictsfields, oldmax_edicts * prog->edict_size);
2110
2111         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2112         {
2113                 ent->priv.vp = (unsigned char*) prog->edictprivate + i * prog->edictprivate_size;
2114                 ent->fields.server = (void *)((unsigned char *)prog->edictsfields + i * prog->edict_size);
2115                 // link every entity except world
2116                 if (!ent->priv.server->free)
2117                         SV_LinkEdict(ent, false);
2118         }
2119
2120         PR_Free(oldedictsengineprivate);
2121         PR_Free(oldedictsfields);
2122         PR_Free(oldmoved_edicts);
2123 }*/
2124
2125 /*
2126 ================
2127 SV_SpawnServer
2128
2129 This is called at the start of each level
2130 ================
2131 */
2132 extern float            scr_centertime_off;
2133
2134 void SV_SpawnServer (const char *server)
2135 {
2136         prvm_edict_t *ent;
2137         int i;
2138         char *entities;
2139         model_t *worldmodel;
2140         char modelname[sizeof(sv.modelname)];
2141
2142         Con_DPrintf("SpawnServer: %s\n", server);
2143
2144         if (cls.state != ca_dedicated)
2145                 SCR_BeginLoadingPlaque();
2146
2147         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
2148         worldmodel = Mod_ForName(modelname, false, true, true);
2149         if (!worldmodel || !worldmodel->TraceBox)
2150         {
2151                 Con_Printf("Couldn't load map %s\n", modelname);
2152                 return;
2153         }
2154
2155         // let's not have any servers with no name
2156         if (hostname.string[0] == 0)
2157                 Cvar_Set ("hostname", "UNNAMED");
2158         scr_centertime_off = 0;
2159
2160         svs.changelevel_issued = false;         // now safe to issue another
2161
2162         // make the map a required file for clients
2163         Curl_ClearRequirements();
2164         Curl_RequireFile(modelname);
2165
2166 //
2167 // tell all connected clients that we are going to a new level
2168 //
2169         if (sv.active)
2170         {
2171                 client_t *client;
2172                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2173                 {
2174                         if (client->netconnection)
2175                         {
2176                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
2177                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
2178                         }
2179                 }
2180         }
2181         else
2182         {
2183                 // open server port
2184                 NetConn_OpenServerPorts(true);
2185         }
2186
2187 //
2188 // make cvars consistant
2189 //
2190         if (coop.integer)
2191                 Cvar_SetValue ("deathmatch", 0);
2192         // LordHavoc: it can be useful to have skills outside the range 0-3...
2193         //current_skill = bound(0, (int)(skill.value + 0.5), 3);
2194         //Cvar_SetValue ("skill", (float)current_skill);
2195         current_skill = (int)(skill.value + 0.5);
2196
2197 //
2198 // set up the new server
2199 //
2200         memset (&sv, 0, sizeof(sv));
2201         // if running a local client, make sure it doesn't try to access the last
2202         // level's data which is no longer valiud
2203         cls.signon = 0;
2204
2205         if(*sv_random_seed.string)
2206         {
2207                 srand(sv_random_seed.integer);
2208                 Con_Printf("NOTE: random seed is %d; use for debugging/benchmarking only!\nUnset sv_random_seed to get real random numbers again.\n", sv_random_seed.integer);
2209         }
2210
2211         SV_VM_Setup();
2212
2213         sv.active = true;
2214
2215         strlcpy (sv.name, server, sizeof (sv.name));
2216
2217         sv.protocol = Protocol_EnumForName(sv_protocolname.string);
2218         if (sv.protocol == PROTOCOL_UNKNOWN)
2219         {
2220                 char buffer[1024];
2221                 Protocol_Names(buffer, sizeof(buffer));
2222                 Con_Printf("Unknown sv_protocolname \"%s\", valid values are:\n%s\n", sv_protocolname.string, buffer);
2223                 sv.protocol = PROTOCOL_QUAKE;
2224         }
2225
2226         SV_VM_Begin();
2227
2228 // load progs to get entity field count
2229         //PR_LoadProgs ( sv_progs.string );
2230
2231         // allocate server memory
2232         /*// start out with just enough room for clients and a reasonable estimate of entities
2233         prog->max_edicts = max(svs.maxclients + 1, 512);
2234         prog->max_edicts = min(prog->max_edicts, MAX_EDICTS);
2235
2236         // prvm_edict_t structures (hidden from progs)
2237         prog->edicts = PR_Alloc(MAX_EDICTS * sizeof(prvm_edict_t));
2238         // engine private structures (hidden from progs)
2239         prog->edictprivate = PR_Alloc(prog->max_edicts * sizeof(edict_engineprivate_t));
2240         // progs fields, often accessed by server
2241         prog->edictsfields = PR_Alloc(prog->max_edicts * prog->edict_size);*/
2242         // used by PushMove to move back pushed entities
2243         sv.moved_edicts = (prvm_edict_t **)PRVM_Alloc(prog->max_edicts * sizeof(prvm_edict_t *));
2244         /*for (i = 0;i < prog->max_edicts;i++)
2245         {
2246                 ent = prog->edicts + i;
2247                 ent->priv.vp = (unsigned char*) prog->edictprivate + i * prog->edictprivate_size;
2248                 ent->fields.server = (void *)((unsigned char *)prog->edictsfields + i * prog->edict_size);
2249         }*/
2250
2251         // reset client csqc entity versions right away.
2252         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2253                 EntityFrameCSQC_InitClientVersions(i, true);
2254
2255         sv.datagram.maxsize = sizeof(sv.datagram_buf);
2256         sv.datagram.cursize = 0;
2257         sv.datagram.data = sv.datagram_buf;
2258
2259         sv.reliable_datagram.maxsize = sizeof(sv.reliable_datagram_buf);
2260         sv.reliable_datagram.cursize = 0;
2261         sv.reliable_datagram.data = sv.reliable_datagram_buf;
2262
2263         sv.signon.maxsize = sizeof(sv.signon_buf);
2264         sv.signon.cursize = 0;
2265         sv.signon.data = sv.signon_buf;
2266
2267 // leave slots at start for clients only
2268         //prog->num_edicts = svs.maxclients+1;
2269
2270         sv.state = ss_loading;
2271         prog->allowworldwrites = true;
2272         sv.paused = false;
2273
2274         prog->globals.server->time = sv.time = 1.0;
2275
2276         Mod_ClearUsed();
2277         worldmodel->used = true;
2278
2279         strlcpy (sv.name, server, sizeof (sv.name));
2280         strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
2281         sv.worldmodel = worldmodel;
2282         sv.models[1] = sv.worldmodel;
2283
2284 //
2285 // clear world interaction links
2286 //
2287         VectorCopy(sv.worldmodel->normalmins, sv.world.areagrid_mins);
2288         VectorCopy(sv.worldmodel->normalmaxs, sv.world.areagrid_maxs);
2289         World_Clear(&sv.world);
2290
2291         strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
2292
2293         strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
2294         strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
2295         for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
2296         {
2297                 dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
2298                 sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
2299         }
2300
2301 //
2302 // load the rest of the entities
2303 //
2304         // AK possible hack since num_edicts is still 0
2305         ent = PRVM_EDICT_NUM(0);
2306         memset (ent->fields.server, 0, prog->progs->entityfields * 4);
2307         ent->priv.server->free = false;
2308         ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
2309         ent->fields.server->modelindex = 1;             // world model
2310         ent->fields.server->solid = SOLID_BSP;
2311         ent->fields.server->movetype = MOVETYPE_PUSH;
2312         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->mins);
2313         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->maxs);
2314         VectorCopy(sv.worldmodel->normalmins, ent->fields.server->absmin);
2315         VectorCopy(sv.worldmodel->normalmaxs, ent->fields.server->absmax);
2316
2317         if (coop.value)
2318                 prog->globals.server->coop = coop.integer;
2319         else
2320                 prog->globals.server->deathmatch = deathmatch.integer;
2321
2322         prog->globals.server->mapname = PRVM_SetEngineString(sv.name);
2323
2324 // serverflags are for cross level information (sigils)
2325         prog->globals.server->serverflags = svs.serverflags;
2326
2327         // we need to reset the spawned flag on all connected clients here so that
2328         // their thinks don't run during startup (before PutClientInServer)
2329         // we also need to set up the client entities now
2330         // and we need to set the ->edict pointers to point into the progs edicts
2331         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2332         {
2333                 host_client->spawned = false;
2334                 host_client->edict = PRVM_EDICT_NUM(i + 1);
2335                 PRVM_ED_ClearEdict(host_client->edict);
2336         }
2337
2338         // load replacement entity file if found
2339         if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
2340         {
2341                 Con_Printf("Loaded maps/%s.ent\n", sv.name);
2342                 PRVM_ED_LoadFromFile (entities);
2343                 Mem_Free(entities);
2344         }
2345         else
2346                 PRVM_ED_LoadFromFile (sv.worldmodel->brush.entities);
2347
2348
2349         // LordHavoc: clear world angles (to fix e3m3.bsp)
2350         VectorClear(prog->edicts->fields.server->angles);
2351
2352 // all setup is completed, any further precache statements are errors
2353         sv.state = ss_active;
2354         prog->allowworldwrites = false;
2355
2356 // run two frames to allow everything to settle
2357         for (i = 0;i < 2;i++)
2358         {
2359                 sv.frametime = 0.1;
2360                 SV_Physics ();
2361         }
2362
2363         Mod_PurgeUnused();
2364
2365 // create a baseline for more efficient communications
2366         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE)
2367                 SV_CreateBaseline ();
2368
2369 // send serverinfo to all connected clients, and set up botclients coming back from a level change
2370         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2371         {
2372                 if (!host_client->active)
2373                         continue;
2374                 if (host_client->netconnection)
2375                         SV_SendServerinfo(host_client);
2376                 else
2377                 {
2378                         int j;
2379                         // if client is a botclient coming from a level change, we need to
2380                         // set up client info that normally requires networking
2381
2382                         // copy spawn parms out of the client_t
2383                         for (j=0 ; j< NUM_SPAWN_PARMS ; j++)
2384                                 (&prog->globals.server->parm1)[j] = host_client->spawn_parms[j];
2385
2386                         // call the spawn function
2387                         host_client->clientconnectcalled = true;
2388                         prog->globals.server->time = sv.time;
2389                         prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
2390                         PRVM_ExecuteProgram (prog->globals.server->ClientConnect, "QC function ClientConnect is missing");
2391                         PRVM_ExecuteProgram (prog->globals.server->PutClientInServer, "QC function PutClientInServer is missing");
2392                         host_client->spawned = true;
2393                 }
2394         }
2395
2396         Con_DPrint("Server spawned.\n");
2397         NetConn_Heartbeat (2);
2398
2399         SV_VM_End();
2400 }
2401
2402 /////////////////////////////////////////////////////
2403 // SV VM stuff
2404
2405 void SV_VM_CB_BeginIncreaseEdicts(void)
2406 {
2407         int i;
2408         prvm_edict_t *ent;
2409
2410         PRVM_Free( sv.moved_edicts );
2411         sv.moved_edicts = (prvm_edict_t **)PRVM_Alloc(prog->max_edicts * sizeof(prvm_edict_t *));
2412
2413         // links don't survive the transition, so unlink everything
2414         for (i = 0, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2415         {
2416                 if (!ent->priv.server->free)
2417                         World_UnlinkEdict(prog->edicts + i);
2418                 memset(&ent->priv.server->areagrid, 0, sizeof(ent->priv.server->areagrid));
2419         }
2420         World_Clear(&sv.world);
2421 }
2422
2423 void SV_VM_CB_EndIncreaseEdicts(void)
2424 {
2425         int i;
2426         prvm_edict_t *ent;
2427
2428         // link every entity except world
2429         for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
2430                 if (!ent->priv.server->free)
2431                         SV_LinkEdict(ent, false);
2432 }
2433
2434 void SV_VM_CB_InitEdict(prvm_edict_t *e)
2435 {
2436         // LordHavoc: for consistency set these here
2437         int num = PRVM_NUM_FOR_EDICT(e) - 1;
2438
2439         e->priv.server->move = false; // don't move on first frame
2440
2441         if (num >= 0 && num < svs.maxclients)
2442         {
2443                 prvm_eval_t *val;
2444                 // set colormap and team on newly created player entity
2445                 e->fields.server->colormap = num + 1;
2446                 e->fields.server->team = (svs.clients[num].colors & 15) + 1;
2447                 // set netname/clientcolors back to client values so that
2448                 // DP_SV_CLIENTNAME and DP_SV_CLIENTCOLORS will not immediately
2449                 // reset them
2450                 e->fields.server->netname = PRVM_SetEngineString(svs.clients[num].name);
2451                 if ((val = PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.clientcolors)))
2452                         val->_float = svs.clients[num].colors;
2453                 // NEXUIZ_PLAYERMODEL and NEXUIZ_PLAYERSKIN
2454                 if( prog->fieldoffsets.playermodel >= 0 )
2455                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(svs.clients[num].playermodel);
2456                 if( prog->fieldoffsets.playerskin >= 0 )
2457                         PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(svs.clients[num].playerskin);
2458                 // Assign netaddress (IP Address, etc)
2459                 if(prog->fieldoffsets.netaddress >= 0)
2460                 { // Valid Field; Process
2461                         if(svs.clients[num].netconnection != NULL)
2462                         {// Valid Address; Assign
2463                                 // Acquire Readable Address
2464                                 LHNETADDRESS_ToString(&svs.clients[num].netconnection->peeraddress, svs.clients[num].netaddress, sizeof(svs.clients[num].netaddress), false);
2465                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString(svs.clients[num].netaddress);
2466                         }
2467                         else
2468                                 // Invalid / Bot
2469                                 PRVM_EDICTFIELDVALUE(e, prog->fieldoffsets.netaddress)->string = PRVM_SetEngineString("null/botclient");
2470                 }
2471         }
2472 }
2473
2474 void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
2475 {
2476         World_UnlinkEdict(ed);          // unlink from world bsp
2477
2478         ed->fields.server->model = 0;
2479         ed->fields.server->takedamage = 0;
2480         ed->fields.server->modelindex = 0;
2481         ed->fields.server->colormap = 0;
2482         ed->fields.server->skin = 0;
2483         ed->fields.server->frame = 0;
2484         VectorClear(ed->fields.server->origin);
2485         VectorClear(ed->fields.server->angles);
2486         ed->fields.server->nextthink = -1;
2487         ed->fields.server->solid = 0;
2488 }
2489
2490 void SV_VM_CB_CountEdicts(void)
2491 {
2492         int             i;
2493         prvm_edict_t    *ent;
2494         int             active, models, solid, step;
2495
2496         active = models = solid = step = 0;
2497         for (i=0 ; i<prog->num_edicts ; i++)
2498         {
2499                 ent = PRVM_EDICT_NUM(i);
2500                 if (ent->priv.server->free)
2501                         continue;
2502                 active++;
2503                 if (ent->fields.server->solid)
2504                         solid++;
2505                 if (ent->fields.server->model)
2506                         models++;
2507                 if (ent->fields.server->movetype == MOVETYPE_STEP)
2508                         step++;
2509         }
2510
2511         Con_Printf("num_edicts:%3i\n", prog->num_edicts);
2512         Con_Printf("active    :%3i\n", active);
2513         Con_Printf("view      :%3i\n", models);
2514         Con_Printf("touch     :%3i\n", solid);
2515         Con_Printf("step      :%3i\n", step);
2516 }
2517
2518 qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
2519 {
2520         // remove things from different skill levels or deathmatch
2521         if (gamemode != GAME_TRANSFUSION) //Transfusion does this in QC
2522         {
2523                 if (deathmatch.integer)
2524                 {
2525                         if (((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_DEATHMATCH))
2526                         {
2527                                 return false;
2528                         }
2529                 }
2530                 else if ((current_skill <= 0 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_EASY  ))
2531                         || (current_skill == 1 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_MEDIUM))
2532                         || (current_skill >= 2 && ((int)ent->fields.server->spawnflags & SPAWNFLAG_NOT_HARD  )))
2533                 {
2534                         return false;
2535                 }
2536         }
2537         return true;
2538 }
2539
2540 cvar_t pr_checkextension = {CVAR_READONLY, "pr_checkextension", "1", "indicates to QuakeC that the standard quakec extensions system is available (if 0, quakec should not attempt to use extensions)"};
2541 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
2542 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
2543 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
2544 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
2545 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
2546 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
2547 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
2548 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
2549 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
2550 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
2551 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
2552 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
2553 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
2554 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
2555 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
2556 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
2557 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
2558 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
2559 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
2560 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
2561 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
2562 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
2563 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
2564 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
2565 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
2566 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
2567 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
2568 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
2569 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
2570 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
2571 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
2572 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
2573
2574 void SV_VM_Init(void)
2575 {
2576         Cvar_RegisterVariable (&pr_checkextension);
2577         Cvar_RegisterVariable (&nomonsters);
2578         Cvar_RegisterVariable (&gamecfg);
2579         Cvar_RegisterVariable (&scratch1);
2580         Cvar_RegisterVariable (&scratch2);
2581         Cvar_RegisterVariable (&scratch3);
2582         Cvar_RegisterVariable (&scratch4);
2583         Cvar_RegisterVariable (&savedgamecfg);
2584         Cvar_RegisterVariable (&saved1);
2585         Cvar_RegisterVariable (&saved2);
2586         Cvar_RegisterVariable (&saved3);
2587         Cvar_RegisterVariable (&saved4);
2588         // LordHavoc: Nehahra uses these to pass data around cutscene demos
2589         if (gamemode == GAME_NEHAHRA)
2590         {
2591                 Cvar_RegisterVariable (&nehx00);
2592                 Cvar_RegisterVariable (&nehx01);
2593                 Cvar_RegisterVariable (&nehx02);
2594                 Cvar_RegisterVariable (&nehx03);
2595                 Cvar_RegisterVariable (&nehx04);
2596                 Cvar_RegisterVariable (&nehx05);
2597                 Cvar_RegisterVariable (&nehx06);
2598                 Cvar_RegisterVariable (&nehx07);
2599                 Cvar_RegisterVariable (&nehx08);
2600                 Cvar_RegisterVariable (&nehx09);
2601                 Cvar_RegisterVariable (&nehx10);
2602                 Cvar_RegisterVariable (&nehx11);
2603                 Cvar_RegisterVariable (&nehx12);
2604                 Cvar_RegisterVariable (&nehx13);
2605                 Cvar_RegisterVariable (&nehx14);
2606                 Cvar_RegisterVariable (&nehx15);
2607                 Cvar_RegisterVariable (&nehx16);
2608                 Cvar_RegisterVariable (&nehx17);
2609                 Cvar_RegisterVariable (&nehx18);
2610                 Cvar_RegisterVariable (&nehx19);
2611         }
2612         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
2613 }
2614
2615 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
2616
2617 prvm_required_field_t reqfields[] =
2618 {
2619         {ev_entity, "cursor_trace_ent"},
2620         {ev_entity, "drawonlytoclient"},
2621         {ev_entity, "exteriormodeltoclient"},
2622         {ev_entity, "nodrawtoclient"},
2623         {ev_entity, "tag_entity"},
2624         {ev_entity, "viewmodelforclient"},
2625         {ev_float, "Version"},
2626         {ev_float, "alpha"},
2627         {ev_float, "ammo_cells1"},
2628         {ev_float, "ammo_lava_nails"},
2629         {ev_float, "ammo_multi_rockets"},
2630         {ev_float, "ammo_nails1"},
2631         {ev_float, "ammo_plasma"},
2632         {ev_float, "ammo_rockets1"},
2633         {ev_float, "ammo_shells1"},
2634         {ev_float, "button3"},
2635         {ev_float, "button4"},
2636         {ev_float, "button5"},
2637         {ev_float, "button6"},
2638         {ev_float, "button7"},
2639         {ev_float, "button8"},
2640         {ev_float, "button9"},
2641         {ev_float, "button10"},
2642         {ev_float, "button11"},
2643         {ev_float, "button12"},
2644         {ev_float, "button13"},
2645         {ev_float, "button14"},
2646         {ev_float, "button15"},
2647         {ev_float, "button16"},
2648         {ev_float, "buttonchat"},
2649         {ev_float, "buttonuse"},
2650         {ev_float, "clientcolors"},
2651         {ev_float, "cursor_active"},
2652         {ev_float, "disableclientprediction"},
2653         {ev_float, "fullbright"},
2654         {ev_float, "glow_color"},
2655         {ev_float, "glow_size"},
2656         {ev_float, "glow_trail"},
2657         {ev_float, "gravity"},
2658         {ev_float, "idealpitch"},
2659         {ev_float, "items2"},
2660         {ev_float, "light_lev"},
2661         {ev_float, "modelflags"},
2662         {ev_float, "pflags"},
2663         {ev_float, "ping"},
2664         {ev_float, "pitch_speed"},
2665         {ev_float, "pmodel"},
2666         {ev_float, "renderamt"}, // HalfLife support
2667         {ev_float, "rendermode"}, // HalfLife support
2668         {ev_float, "scale"},
2669         {ev_float, "style"},
2670         {ev_float, "tag_index"},
2671         {ev_float, "viewzoom"},
2672         {ev_function, "SendEntity"},
2673         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
2674         {ev_function, "customizeentityforclient"},
2675         {ev_string, "netaddress"},
2676         {ev_string, "playermodel"},
2677         {ev_string, "playerskin"},
2678         {ev_vector, "color"},
2679         {ev_vector, "colormod"},
2680         {ev_vector, "cursor_screen"},
2681         {ev_vector, "cursor_trace_endpos"},
2682         {ev_vector, "cursor_trace_start"},
2683         {ev_vector, "movement"},
2684         {ev_vector, "punchvector"},
2685 };
2686
2687 void SV_VM_Setup(void)
2688 {
2689         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
2690         extern cvar_t csqc_progcrc;
2691         extern cvar_t csqc_progsize;
2692         size_t csprogsdatasize;
2693         PRVM_Begin;
2694         PRVM_InitProg( PRVM_SERVERPROG );
2695
2696         // allocate the mempools
2697         // TODO: move the magic numbers/constants into #defines [9/13/2006 Black]
2698         prog->progs_mempool = Mem_AllocPool("Server Progs", 0, NULL);
2699         prog->builtins = vm_sv_builtins;
2700         prog->numbuiltins = vm_sv_numbuiltins;
2701         prog->headercrc = PROGHEADER_CRC;
2702         prog->max_edicts = 512;
2703         prog->limit_edicts = MAX_EDICTS;
2704         prog->reserved_edicts = svs.maxclients;
2705         prog->edictprivate_size = sizeof(edict_engineprivate_t);
2706         prog->name = "server";
2707         prog->extensionstring = vm_sv_extensions;
2708         prog->loadintoworld = true;
2709
2710         prog->begin_increase_edicts = SV_VM_CB_BeginIncreaseEdicts;
2711         prog->end_increase_edicts = SV_VM_CB_EndIncreaseEdicts;
2712         prog->init_edict = SV_VM_CB_InitEdict;
2713         prog->free_edict = SV_VM_CB_FreeEdict;
2714         prog->count_edicts = SV_VM_CB_CountEdicts;
2715         prog->load_edict = SV_VM_CB_LoadEdict;
2716         prog->init_cmd = VM_SV_Cmd_Init;
2717         prog->reset_cmd = VM_SV_Cmd_Reset;
2718         prog->error_cmd = Host_Error;
2719
2720         // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
2721         PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
2722
2723         // some mods compiled with scrambling compilers lack certain critical
2724         // global names and field names such as "self" and "time" and "nextthink"
2725         // so we have to set these offsets manually, matching the entvars_t
2726         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, angles);
2727         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, chain);
2728         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, classname);
2729         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, frame);
2730         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, groundentity);
2731         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, ideal_yaw);
2732         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, nextthink);
2733         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, think);
2734         PRVM_ED_FindFieldOffset_FromStruct(entvars_t, yaw_speed);
2735         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, self);
2736         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, time);
2737         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_forward);
2738         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_right);
2739         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, v_up);
2740         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_allsolid);
2741         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_startsolid);
2742         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_fraction);
2743         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inwater);
2744         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_inopen);
2745         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_endpos);
2746         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_normal);
2747         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_plane_dist);
2748         PRVM_ED_FindGlobalOffset_FromStruct(globalvars_t, trace_ent);
2749         // OP_STATE is always supported on server (due to entvars_t)
2750         prog->flag |= PRVM_OP_STATE;
2751
2752         VM_CustomStats_Clear();//[515]: csqc
2753         EntityFrameCSQC_ClearVersions();//[515]: csqc
2754
2755         PRVM_End;
2756
2757         // see if there is a csprogs.dat installed, and if so, set the csqc_progcrc accordingly, this will be sent to connecting clients to tell them to only load a matching csprogs.dat file
2758         sv.csqc_progname[0] = 0;
2759         sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
2760         sv.csqc_progsize = csprogsdatasize;
2761         if (sv.csqc_progsize > 0)
2762         {
2763                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2764                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
2765         }
2766 }
2767
2768 void SV_VM_Begin(void)
2769 {
2770         PRVM_Begin;
2771         PRVM_SetProg( PRVM_SERVERPROG );
2772
2773         prog->globals.server->time = (float) sv.time;
2774 }
2775
2776 void SV_VM_End(void)
2777 {
2778         PRVM_End;
2779 }