WarpZones:
[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 "sv_demo.h"
24 #include "libcurl.h"
25 #include "csprogs.h"
26
27 static void SV_SaveEntFile_f(void);
28 static void SV_StartDownload_f(void);
29 static void SV_Download_f(void);
30 static void SV_VM_Setup(void);
31 extern cvar_t net_connecttimeout;
32
33 void VM_CustomStats_Clear (void);
34 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
35
36 cvar_t coop = {0, "coop","0", "coop mode, 0 = no coop, 1 = coop mode, multiple players playing through the singleplayer game (coop mode also shuts off deathmatch)"};
37 cvar_t deathmatch = {0, "deathmatch","0", "deathmatch mode, values depend on mod but typically 0 = no deathmatch, 1 = normal deathmatch with respawning weapons, 2 = weapons stay (players can only pick up new weapons)"};
38 cvar_t fraglimit = {CVAR_NOTIFY, "fraglimit","0", "ends level if this many frags is reached by any player"};
39 cvar_t gamecfg = {0, "gamecfg", "0", "unused cvar in quake, can be used by mods"};
40 cvar_t noexit = {CVAR_NOTIFY, "noexit","0", "kills anyone attempting to use an exit"};
41 cvar_t nomonsters = {0, "nomonsters", "0", "unused cvar in quake, can be used by mods"};
42 cvar_t pausable = {0, "pausable","1", "allow players to pause or not"};
43 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)"};
44 cvar_t samelevel = {CVAR_NOTIFY, "samelevel","0", "repeats same level if level ends (due to timelimit or someone hitting an exit)"};
45 cvar_t skill = {0, "skill","1", "difficulty level of game, affects monster layouts in levels, 0 = easy, 1 = normal, 2 = hard, 3 = nightmare (same layout as hard but monsters fire twice)"};
46 cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2 is double speed"};
47
48 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
49 cvar_t sv_aim = {CVAR_SAVE, "sv_aim", "2", "maximum cosine angle for quake's vertical autoaim, a value above 1 completely disables the autoaim, quake used 0.93"};
50 cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration; when < 0, the speed is clamped against the maximum allowed forward speed after the move"};
51 cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging); when < 0, only so much friction is applied that braking (by accelerating backwards) cannot be stronger"};
52 cvar_t sv_airaccelerate = {0, "sv_airaccelerate", "-1", "rate at which a player accelerates to sv_maxairspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
53 cvar_t sv_airstopaccelerate = {0, "sv_airstopaccelerate", "0", "when set, replacement for sv_airaccelerate when moving backwards"};
54 cvar_t sv_airstrafeaccelerate = {0, "sv_airstrafeaccelerate", "0", "when set, replacement for sv_airaccelerate when just strafing"};
55 cvar_t sv_maxairstrafespeed = {0, "sv_maxairstrafespeed", "0", "when set, replacement for sv_maxairspeed when just strafing"};
56 cvar_t sv_aircontrol = {0, "sv_aircontrol", "0", "CPMA-style air control"};
57 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
58 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
59 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
60 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
61 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
62 cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "128", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
63 cvar_t sv_checkforpacketsduringsleep = {0, "sv_checkforpacketsduringsleep", "0", "uses select() function to wait between frames which can be interrupted by packets being received, instead of Sleep()/usleep()/SDL_Sleep() functions which do not check for packets"};
64 cvar_t sv_clmovement_enable = {0, "sv_clmovement_enable", "1", "whether to allow clients to use cl_movement prediction, which can cause choppy movement on the server which may annoy other players"};
65 cvar_t sv_clmovement_minping = {0, "sv_clmovement_minping", "0", "if client ping is below this time in milliseconds, then their ability to use cl_movement prediction is disabled for a while (as they don't need it)"};
66 cvar_t sv_clmovement_minping_disabletime = {0, "sv_clmovement_minping_disabletime", "1000", "when client falls below minping, disable their prediction for this many milliseconds (should be at least 1000 or else their prediction may turn on/off frequently)"};
67 cvar_t sv_clmovement_inputtimeout = {0, "sv_clmovement_inputtimeout", "0.2", "when a client does not send input for this many seconds, force them to move anyway (unlike QuakeWorld)"};
68 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!)"};
69 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
70 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
71 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"};
72 cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "number of seconds until the entity gets actually culled"};
73 cvar_t sv_cullentities_trace_delay_players = {0, "sv_cullentities_trace_delay_players", "0.2", "number of seconds until the entity gets actually culled if it is a player entity"};
74 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
75 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
76 cvar_t sv_cullentities_trace_prediction_time = {0, "sv_cullentities_trace_prediction_time", "0.2", "how many seconds of prediction to use"};
77 cvar_t sv_cullentities_trace_entityocclusion = {0, "sv_cullentities_trace_entityocclusion", "0", "also check if doors and other bsp models are in the way"};
78 cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "2", "number of samples to test for entity culling"};
79 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"};
80 cvar_t sv_cullentities_trace_samples_players = {0, "sv_cullentities_trace_samples_players", "8", "number of samples to test for entity culling when the entity is a player entity"};
81 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
82 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
83 cvar_t sv_edgefriction = {0, "edgefriction", "1", "how much you slow down when nearing a ledge you might fall off, multiplier of sv_friction (Quake used 2, QuakeWorld used 1 due to a bug in physics code)"};
84 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)"};
85 cvar_t sv_fixedframeratesingleplayer = {0, "sv_fixedframeratesingleplayer", "1", "allows you to use server-style timing system in singleplayer (don't run faster than sys_ticrate)"};
86 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
87 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
88 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"};
89 cvar_t sv_gameplayfix_consistentplayerprethink = {0, "sv_gameplayfix_consistentplayerprethink", "1", "improves fairness in multiplayer by running all PlayerPreThink functions (which fire weapons) before performing physics, then runing all PlayerPostThink functions"};
90 cvar_t sv_gameplayfix_delayprojectiles = {0, "sv_gameplayfix_delayprojectiles", "1", "causes entities to not move on the same frame they are spawned, meaning that projectiles wait until the next frame to perform their first move, giving proper interpolation and rocket trails, but making weapons harder to use at low framerates"};
91 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)"};
92 cvar_t sv_gameplayfix_droptofloorstartsolid_nudgetocorrect = {0, "sv_gameplayfix_droptofloorstartsolid_nudgetocorrect", "1", "tries to nudge stuck items and monsters out of walls before droptofloor is performed"};
93 cvar_t sv_gameplayfix_easierwaterjump = {0, "sv_gameplayfix_easierwaterjump", "1", "changes water jumping to make it easier to get out of water (exactly like in QuakeWorld)"};
94 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"};
95 cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
96 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
97 cvar_t sv_gameplayfix_multiplethinksperframe = {0, "sv_gameplayfix_multiplethinksperframe", "1", "allows entities to think more often than the server framerate, primarily useful for very high fire rate weapons"};
98 cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses, items, etc) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
99 cvar_t sv_gameplayfix_noairborncorpse_allowsuspendeditems = {0, "sv_gameplayfix_noairborncorpse_allowsuspendeditems", "1", "causes entities sitting ontop of objects that are instantaneously remove to float in midair (special hack to allow a common level design trick for floating items)"};
100 cvar_t sv_gameplayfix_nudgeoutofsolid = {0, "sv_gameplayfix_nudgeoutofsolid", "1", "attempts to fix physics errors (where an object ended up in solid for some reason)"};
101 cvar_t sv_gameplayfix_nudgeoutofsolid_bias = {0, "sv_gameplayfix_nudgeoutofsolid_bias", "0", "over-correction on nudgeoutofsolid logic, to prevent constant contact"};
102 cvar_t sv_gameplayfix_q2airaccelerate = {0, "sv_gameplayfix_q2airaccelerate", "0", "Quake2-style air acceleration"};
103 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"};
104 cvar_t sv_gameplayfix_slidemoveprojectiles = {0, "sv_gameplayfix_slidemoveprojectiles", "1", "allows MOVETYPE_FLY/FLYMISSILE/TOSS/BOUNCE/BOUNCEMISSILE entities to finish their move in a frame even if they hit something, fixes 'gravity accumulation' bug for grenades on steep slopes"};
105 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)"};
106 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)"};
107 cvar_t sv_gameplayfix_stepmultipletimes = {0, "sv_gameplayfix_stepmultipletimes", "1", "applies step-up onto a ledge more than once in a single frame, when running quickly up stairs"};
108 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"};
109 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"};
110 cvar_t sv_gameplayfix_downtracesupportsongroundflag = {0, "sv_gameplayfix_downtracesupportsongroundflag", "1", "prevents very short moves from clearing onground (which may make the player stick to the floor at high netfps)"};
111 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
112 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
113 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
114 cvar_t sv_jumpvelocity = {0, "sv_jumpvelocity", "270", "cvar that can be used by QuakeC code for jump velocity"};
115 cvar_t sv_maxairspeed = {0, "sv_maxairspeed", "30", "maximum speed a player can accelerate to when airborn (note that it is possible to completely stop by moving the opposite direction)"};
116 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
117 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
118 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
119 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
120 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
121 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
122 cvar_t sv_protocolname = {0, "sv_protocolname", "DP7", "selects network protocol to host for (values include QUAKE, QUAKEDP, NEHAHRAMOVIE, DP1 and up)"};
123 cvar_t sv_random_seed = {0, "sv_random_seed", "", "random seed; when set, on every map start this random seed is used to initialize the random number generator. Don't touch it unless for benchmarking or debugging"};
124 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)"};
125 cvar_t sv_sound_land = {0, "sv_sound_land", "demon/dland2.wav", "sound to play when MOVETYPE_STEP entity hits the ground at high speed (empty cvar disables the sound)"};
126 cvar_t sv_sound_watersplash = {0, "sv_sound_watersplash", "misc/h2ohit1.wav", "sound to play when MOVETYPE_FLY/TOSS/BOUNCE/STEP entity enters or leaves water (empty cvar disables the sound)"};
127 cvar_t sv_stepheight = {CVAR_NOTIFY, "sv_stepheight", "18", "how high you can step up (TW_SV_STEPCONTROL extension)"};
128 cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to a complete stop"};
129 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
130 cvar_t sv_wateraccelerate = {0, "sv_wateraccelerate", "-1", "rate at which a player accelerates to sv_maxspeed while in the air, if less than 0 the sv_accelerate variable is used instead"};
131 cvar_t sv_waterfriction = {CVAR_NOTIFY, "sv_waterfriction","-1", "how fast you slow down, if less than 0 the sv_friction variable is used instead"};
132 cvar_t sv_warsowbunny_airforwardaccel = {0, "sv_warsowbunny_airforwardaccel", "1.00001", "how fast you accelerate until you reach sv_maxspeed"};
133 cvar_t sv_warsowbunny_accel = {0, "sv_warsowbunny_accel", "0.1585", "how fast you accelerate until after reaching sv_maxspeed (it gets harder as you near sv_warsowbunny_topspeed)"};
134 cvar_t sv_warsowbunny_topspeed = {0, "sv_warsowbunny_topspeed", "925", "soft speed limit (can get faster with rjs and on ramps)"};
135 cvar_t sv_warsowbunny_turnaccel = {0, "sv_warsowbunny_turnaccel", "0", "max sharpness of turns (also master switch for the sv_warsowbunny_* mode; set this to 9 to enable)"};
136 cvar_t sv_warsowbunny_backtosideratio = {0, "sv_warsowbunny_backtosideratio", "0.8", "lower values make it easier to change direction without losing speed; the drawback is \"understeering\" in sharp turns"};
137 cvar_t sv_onlycsqcnetworking = {0, "sv_onlycsqcnetworking", "0", "disables legacy entity networking code for higher performance (except on clients, which can still be legacy)"};
138 cvar_t sys_ticrate = {CVAR_SAVE, "sys_ticrate","0.0138889", "how long a server frame is in seconds, 0.05 is 20fps server rate, 0.1 is 10fps (can not be set higher than 0.1), 0 runs as many server frames as possible (makes games against bots a little smoother, overwhelms network players), 0.0138889 matches QuakeWorld physics"};
139 cvar_t teamplay = {CVAR_NOTIFY, "teamplay","0", "teamplay mode, values depend on mod but typically 0 = no teams, 1 = no team damage no self damage, 2 = team damage and self damage, some mods support 3 = no team damage but can damage self"};
140 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
141
142 cvar_t saved1 = {CVAR_SAVE, "saved1", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
143 cvar_t saved2 = {CVAR_SAVE, "saved2", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
144 cvar_t saved3 = {CVAR_SAVE, "saved3", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
145 cvar_t saved4 = {CVAR_SAVE, "saved4", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
146 cvar_t savedgamecfg = {CVAR_SAVE, "savedgamecfg", "0", "unused cvar in quake that is saved to config.cfg on exit, can be used by mods"};
147 cvar_t scratch1 = {0, "scratch1", "0", "unused cvar in quake, can be used by mods"};
148 cvar_t scratch2 = {0,"scratch2", "0", "unused cvar in quake, can be used by mods"};
149 cvar_t scratch3 = {0, "scratch3", "0", "unused cvar in quake, can be used by mods"};
150 cvar_t scratch4 = {0, "scratch4", "0", "unused cvar in quake, can be used by mods"};
151 cvar_t temp1 = {0, "temp1","0", "general cvar for mods to use, in stock id1 this selects which death animation to use on players (0 = random death, other values select specific death scenes)"};
152
153 cvar_t nehx00 = {0, "nehx00", "0", "nehahra data storage cvar (used in singleplayer)"};
154 cvar_t nehx01 = {0, "nehx01", "0", "nehahra data storage cvar (used in singleplayer)"};
155 cvar_t nehx02 = {0, "nehx02", "0", "nehahra data storage cvar (used in singleplayer)"};
156 cvar_t nehx03 = {0, "nehx03", "0", "nehahra data storage cvar (used in singleplayer)"};
157 cvar_t nehx04 = {0, "nehx04", "0", "nehahra data storage cvar (used in singleplayer)"};
158 cvar_t nehx05 = {0, "nehx05", "0", "nehahra data storage cvar (used in singleplayer)"};
159 cvar_t nehx06 = {0, "nehx06", "0", "nehahra data storage cvar (used in singleplayer)"};
160 cvar_t nehx07 = {0, "nehx07", "0", "nehahra data storage cvar (used in singleplayer)"};
161 cvar_t nehx08 = {0, "nehx08", "0", "nehahra data storage cvar (used in singleplayer)"};
162 cvar_t nehx09 = {0, "nehx09", "0", "nehahra data storage cvar (used in singleplayer)"};
163 cvar_t nehx10 = {0, "nehx10", "0", "nehahra data storage cvar (used in singleplayer)"};
164 cvar_t nehx11 = {0, "nehx11", "0", "nehahra data storage cvar (used in singleplayer)"};
165 cvar_t nehx12 = {0, "nehx12", "0", "nehahra data storage cvar (used in singleplayer)"};
166 cvar_t nehx13 = {0, "nehx13", "0", "nehahra data storage cvar (used in singleplayer)"};
167 cvar_t nehx14 = {0, "nehx14", "0", "nehahra data storage cvar (used in singleplayer)"};
168 cvar_t nehx15 = {0, "nehx15", "0", "nehahra data storage cvar (used in singleplayer)"};
169 cvar_t nehx16 = {0, "nehx16", "0", "nehahra data storage cvar (used in singleplayer)"};
170 cvar_t nehx17 = {0, "nehx17", "0", "nehahra data storage cvar (used in singleplayer)"};
171 cvar_t nehx18 = {0, "nehx18", "0", "nehahra data storage cvar (used in singleplayer)"};
172 cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singleplayer)"};
173 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
174
175 cvar_t sv_autodemo_perclient = {CVAR_SAVE, "sv_autodemo_perclient", "0", "set to 1 to enable autorecorded per-client demos (they'll start to record at the beginning of a match); set it to 2 to also record client->server packets (for debugging)"};
176 cvar_t sv_autodemo_perclient_nameformat = {CVAR_SAVE, "sv_autodemo_perclient_nameformat", "sv_autodemos/%Y-%m-%d_%H-%M", "The format of the sv_autodemo_perclient filename, followed by the map name, the client number and the IP address + port number, separated by underscores (the date is encoded using strftime escapes)" };
177
178 cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
179
180 server_t sv;
181 server_static_t svs;
182
183 mempool_t *sv_mempool = NULL;
184
185 extern cvar_t slowmo;
186 extern float            scr_centertime_off;
187
188 // MUST match effectnameindex_t in client.h
189 static const char *standardeffectnames[EFFECT_TOTAL] =
190 {
191         "",
192         "TE_GUNSHOT",
193         "TE_GUNSHOTQUAD",
194         "TE_SPIKE",
195         "TE_SPIKEQUAD",
196         "TE_SUPERSPIKE",
197         "TE_SUPERSPIKEQUAD",
198         "TE_WIZSPIKE",
199         "TE_KNIGHTSPIKE",
200         "TE_EXPLOSION",
201         "TE_EXPLOSIONQUAD",
202         "TE_TAREXPLOSION",
203         "TE_TELEPORT",
204         "TE_LAVASPLASH",
205         "TE_SMALLFLASH",
206         "TE_FLAMEJET",
207         "EF_FLAME",
208         "TE_BLOOD",
209         "TE_SPARK",
210         "TE_PLASMABURN",
211         "TE_TEI_G3",
212         "TE_TEI_SMOKE",
213         "TE_TEI_BIGEXPLOSION",
214         "TE_TEI_PLASMAHIT",
215         "EF_STARDUST",
216         "TR_ROCKET",
217         "TR_GRENADE",
218         "TR_BLOOD",
219         "TR_WIZSPIKE",
220         "TR_SLIGHTBLOOD",
221         "TR_KNIGHTSPIKE",
222         "TR_VORESPIKE",
223         "TR_NEHAHRASMOKE",
224         "TR_NEXUIZPLASMA",
225         "TR_GLOWTRAIL",
226         "SVC_PARTICLE"
227 };
228
229 #define REQFIELDS (sizeof(reqfields) / sizeof(prvm_required_field_t))
230
231 prvm_required_field_t reqfields[] =
232 {
233         {ev_entity, "cursor_trace_ent"},
234         {ev_entity, "drawonlytoclient"},
235         {ev_entity, "exteriormodeltoclient"},
236         {ev_entity, "nodrawtoclient"},
237         {ev_entity, "tag_entity"},
238         {ev_entity, "viewmodelforclient"},
239         {ev_float, "SendFlags"},
240         {ev_float, "Version"},
241         {ev_float, "alpha"},
242         {ev_float, "ammo_cells1"},
243         {ev_float, "ammo_lava_nails"},
244         {ev_float, "ammo_multi_rockets"},
245         {ev_float, "ammo_nails1"},
246         {ev_float, "ammo_plasma"},
247         {ev_float, "ammo_rockets1"},
248         {ev_float, "ammo_shells1"},
249         {ev_float, "button3"},
250         {ev_float, "button4"},
251         {ev_float, "button5"},
252         {ev_float, "button6"},
253         {ev_float, "button7"},
254         {ev_float, "button8"},
255         {ev_float, "button9"},
256         {ev_float, "button10"},
257         {ev_float, "button11"},
258         {ev_float, "button12"},
259         {ev_float, "button13"},
260         {ev_float, "button14"},
261         {ev_float, "button15"},
262         {ev_float, "button16"},
263         {ev_float, "buttonchat"},
264         {ev_float, "buttonuse"},
265         {ev_float, "clientcolors"},
266         {ev_float, "cursor_active"},
267         {ev_float, "disableclientprediction"},
268         {ev_float, "fullbright"},
269         {ev_float, "glow_color"},
270         {ev_float, "glow_size"},
271         {ev_float, "glow_trail"},
272         {ev_float, "gravity"},
273         {ev_float, "idealpitch"},
274         {ev_float, "items2"},
275         {ev_float, "light_lev"},
276         {ev_float, "modelflags"},
277         {ev_float, "pflags"},
278         {ev_float, "ping"},
279         {ev_float, "pitch_speed"},
280         {ev_float, "pmodel"},
281         {ev_float, "renderamt"}, // HalfLife support
282         {ev_float, "rendermode"}, // HalfLife support
283         {ev_float, "scale"},
284         {ev_float, "style"},
285         {ev_float, "tag_index"},
286         {ev_float, "viewzoom"},
287         {ev_function, "SendEntity"},
288         {ev_function, "contentstransition"}, // DRESK - Support for Entity Contents Transition Event
289         {ev_function, "customizeentityforclient"},
290         {ev_function, "movetypesteplandevent"}, // DRESK - Support for MOVETYPE_STEP Entity Land Event
291         {ev_string, "netaddress"},
292         {ev_string, "playermodel"},
293         {ev_string, "playerskin"},
294         {ev_vector, "color"},
295         {ev_vector, "colormod"},
296         {ev_vector, "cursor_screen"},
297         {ev_vector, "cursor_trace_endpos"},
298         {ev_vector, "cursor_trace_start"},
299         {ev_vector, "glowmod"},
300         {ev_vector, "movement"},
301         {ev_vector, "punchvector"},
302
303         // physics
304         //{ev_float, "solid"},
305         //{ev_float, "movetype"},
306         //{ev_float, "modelindex"},
307         {ev_vector, "mass"},
308         //{ev_vector, "origin"},
309         //{ev_vector, "velocity"},
310         //{ev_vector, "axis_forward"},
311         //{ev_vector, "axis_left"},
312         //{ev_vector, "axis_up"},
313         //{ev_vector, "spinvelocity"},
314         //{ev_vector, "angles"},
315         //{ev_vector, "avelocity"},
316
317 };
318
319
320
321 //============================================================================
322
323 void SV_AreaStats_f(void)
324 {
325         World_PrintAreaStats(&sv.world, "server");
326 }
327
328 /*
329 ===============
330 SV_Init
331 ===============
332 */
333 void SV_Init (void)
334 {
335         // init the csqc progs cvars, since they are updated/used by the server code
336         // TODO: fix this since this is a quick hack to make some of [515]'s broken code run ;) [9/13/2006 Black]
337         extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
338         extern cvar_t csqc_progcrc;
339         extern cvar_t csqc_progsize;
340         Cvar_RegisterVariable (&csqc_progname);
341         Cvar_RegisterVariable (&csqc_progcrc);
342         Cvar_RegisterVariable (&csqc_progsize);
343
344         Cmd_AddCommand("sv_saveentfile", SV_SaveEntFile_f, "save map entities to .ent file (to allow external editing)");
345         Cmd_AddCommand("sv_areastats", SV_AreaStats_f, "prints statistics on entity culling during collision traces");
346         Cmd_AddCommand_WithClientCommand("sv_startdownload", NULL, SV_StartDownload_f, "begins sending a file to the client (network protocol use only)");
347         Cmd_AddCommand_WithClientCommand("download", NULL, SV_Download_f, "downloads a specified file from the server");
348
349         Cvar_RegisterVariable (&coop);
350         Cvar_RegisterVariable (&deathmatch);
351         Cvar_RegisterVariable (&fraglimit);
352         Cvar_RegisterVariable (&gamecfg);
353         Cvar_RegisterVariable (&noexit);
354         Cvar_RegisterVariable (&nomonsters);
355         Cvar_RegisterVariable (&pausable);
356         Cvar_RegisterVariable (&pr_checkextension);
357         Cvar_RegisterVariable (&samelevel);
358         Cvar_RegisterVariable (&skill);
359         Cvar_RegisterVariable (&slowmo);
360         Cvar_RegisterVariable (&sv_accelerate);
361         Cvar_RegisterVariable (&sv_aim);
362         Cvar_RegisterVariable (&sv_airaccel_qw);
363         Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
364         Cvar_RegisterVariable (&sv_airaccelerate);
365         Cvar_RegisterVariable (&sv_airstopaccelerate);
366         Cvar_RegisterVariable (&sv_airstrafeaccelerate);
367         Cvar_RegisterVariable (&sv_maxairstrafespeed);
368         Cvar_RegisterVariable (&sv_aircontrol);
369         Cvar_RegisterVariable (&sv_allowdownloads);
370         Cvar_RegisterVariable (&sv_allowdownloads_archive);
371         Cvar_RegisterVariable (&sv_allowdownloads_config);
372         Cvar_RegisterVariable (&sv_allowdownloads_dlcache);
373         Cvar_RegisterVariable (&sv_allowdownloads_inarchive);
374         Cvar_RegisterVariable (&sv_areagrid_mingridsize);
375         Cvar_RegisterVariable (&sv_checkforpacketsduringsleep);
376         Cvar_RegisterVariable (&sv_clmovement_enable);
377         Cvar_RegisterVariable (&sv_clmovement_minping);
378         Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
379         Cvar_RegisterVariable (&sv_clmovement_inputtimeout);
380         Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
381         Cvar_RegisterVariable (&sv_cullentities_pvs);
382         Cvar_RegisterVariable (&sv_cullentities_stats);
383         Cvar_RegisterVariable (&sv_cullentities_trace);
384         Cvar_RegisterVariable (&sv_cullentities_trace_delay);
385         Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
386         Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
387         Cvar_RegisterVariable (&sv_cullentities_trace_entityocclusion);
388         Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
389         Cvar_RegisterVariable (&sv_cullentities_trace_prediction_time);
390         Cvar_RegisterVariable (&sv_cullentities_trace_samples);
391         Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
392         Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
393         Cvar_RegisterVariable (&sv_debugmove);
394         Cvar_RegisterVariable (&sv_echobprint);
395         Cvar_RegisterVariable (&sv_edgefriction);
396         Cvar_RegisterVariable (&sv_entpatch);
397         Cvar_RegisterVariable (&sv_fixedframeratesingleplayer);
398         Cvar_RegisterVariable (&sv_freezenonclients);
399         Cvar_RegisterVariable (&sv_friction);
400         Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
401         Cvar_RegisterVariable (&sv_gameplayfix_consistentplayerprethink);
402         Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
403         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
404         Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
405         Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
406         Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
407         Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
408         Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
409         Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
410         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
411         Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse_allowsuspendeditems);
412         Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid);
413         Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid_bias);
414         Cvar_RegisterVariable (&sv_gameplayfix_q2airaccelerate);
415         Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
416         Cvar_RegisterVariable (&sv_gameplayfix_slidemoveprojectiles);
417         Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
418         Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
419         Cvar_RegisterVariable (&sv_gameplayfix_stepmultipletimes);
420         Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
421         Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
422         Cvar_RegisterVariable (&sv_gameplayfix_downtracesupportsongroundflag);
423         Cvar_RegisterVariable (&sv_gravity);
424         Cvar_RegisterVariable (&sv_idealpitchscale);
425         Cvar_RegisterVariable (&sv_jumpstep);
426         Cvar_RegisterVariable (&sv_jumpvelocity);
427         Cvar_RegisterVariable (&sv_maxairspeed);
428         Cvar_RegisterVariable (&sv_maxrate);
429         Cvar_RegisterVariable (&sv_maxspeed);
430         Cvar_RegisterVariable (&sv_maxvelocity);
431         Cvar_RegisterVariable (&sv_nostep);
432         Cvar_RegisterVariable (&sv_playerphysicsqc);
433         Cvar_RegisterVariable (&sv_progs);
434         Cvar_RegisterVariable (&sv_protocolname);
435         Cvar_RegisterVariable (&sv_random_seed);
436         Cvar_RegisterVariable (&sv_ratelimitlocalplayer);
437         Cvar_RegisterVariable (&sv_sound_land);
438         Cvar_RegisterVariable (&sv_sound_watersplash);
439         Cvar_RegisterVariable (&sv_stepheight);
440         Cvar_RegisterVariable (&sv_stopspeed);
441         Cvar_RegisterVariable (&sv_wallfriction);
442         Cvar_RegisterVariable (&sv_wateraccelerate);
443         Cvar_RegisterVariable (&sv_waterfriction);
444         Cvar_RegisterVariable (&sv_warsowbunny_airforwardaccel);
445         Cvar_RegisterVariable (&sv_warsowbunny_accel);
446         Cvar_RegisterVariable (&sv_warsowbunny_topspeed);
447         Cvar_RegisterVariable (&sv_warsowbunny_turnaccel);
448         Cvar_RegisterVariable (&sv_warsowbunny_backtosideratio);
449         Cvar_RegisterVariable (&sv_onlycsqcnetworking);
450         Cvar_RegisterVariable (&sys_ticrate);
451         Cvar_RegisterVariable (&teamplay);
452         Cvar_RegisterVariable (&timelimit);
453
454         Cvar_RegisterVariable (&saved1);
455         Cvar_RegisterVariable (&saved2);
456         Cvar_RegisterVariable (&saved3);
457         Cvar_RegisterVariable (&saved4);
458         Cvar_RegisterVariable (&savedgamecfg);
459         Cvar_RegisterVariable (&scratch1);
460         Cvar_RegisterVariable (&scratch2);
461         Cvar_RegisterVariable (&scratch3);
462         Cvar_RegisterVariable (&scratch4);
463         Cvar_RegisterVariable (&temp1);
464
465         // LordHavoc: Nehahra uses these to pass data around cutscene demos
466         if (gamemode == GAME_NEHAHRA)
467         {
468                 Cvar_RegisterVariable (&nehx00);
469                 Cvar_RegisterVariable (&nehx01);
470                 Cvar_RegisterVariable (&nehx02);
471                 Cvar_RegisterVariable (&nehx03);
472                 Cvar_RegisterVariable (&nehx04);
473                 Cvar_RegisterVariable (&nehx05);
474                 Cvar_RegisterVariable (&nehx06);
475                 Cvar_RegisterVariable (&nehx07);
476                 Cvar_RegisterVariable (&nehx08);
477                 Cvar_RegisterVariable (&nehx09);
478                 Cvar_RegisterVariable (&nehx10);
479                 Cvar_RegisterVariable (&nehx11);
480                 Cvar_RegisterVariable (&nehx12);
481                 Cvar_RegisterVariable (&nehx13);
482                 Cvar_RegisterVariable (&nehx14);
483                 Cvar_RegisterVariable (&nehx15);
484                 Cvar_RegisterVariable (&nehx16);
485                 Cvar_RegisterVariable (&nehx17);
486                 Cvar_RegisterVariable (&nehx18);
487                 Cvar_RegisterVariable (&nehx19);
488         }
489         Cvar_RegisterVariable (&cutscene); // for Nehahra but useful to other mods as well
490
491         Cvar_RegisterVariable (&sv_autodemo_perclient);
492         Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
493
494         Cvar_RegisterVariable (&halflifebsp);
495
496         // any special defaults for gamemodes go here
497         if (gamemode == GAME_NEHAHRA)
498         {
499                 // Nehahra pushable crates malfunction in some levels if this is on
500                 Cvar_SetValueQuick (&sv_gameplayfix_upwardvelocityclearsongroundflag, 0);
501                 // Nehahra NPC AI is confused by this feature
502                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
503         }
504         if (gamemode == GAME_HIPNOTIC)
505         {
506                 // hipnotic mission pack has issues in their 'friendly monster' ai, which seem to attempt to attack themselves for some reason when findradius() returns non-solid entities.
507                 Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
508                 // hipnotic mission pack has issues with bobbing water entities 'jittering' between different heights on alternate frames at the default 0.0138889 ticrate, 0.02 avoids this issue
509                 Cvar_SetValueQuick (&sys_ticrate, 0.02);
510                 // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
511                 Cvar_SetValueQuick (&sv_gameplayfix_slidemoveprojectiles, 0);
512         }
513         if (gamemode == GAME_ROGUE)
514         {
515                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
516                 Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
517         }
518         if (gamemode == GAME_NEXUIZ)
519         {
520                 // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
521                 Cvar_SetValueQuick (&sv_gameplayfix_q2airaccelerate, 1);
522         }
523
524         sv_mempool = Mem_AllocPool("server", 0, NULL);
525 }
526
527 static void SV_SaveEntFile_f(void)
528 {
529         char basename[MAX_QPATH];
530         if (!sv.active || !sv.worldmodel)
531         {
532                 Con_Print("Not running a server\n");
533                 return;
534         }
535         FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
536         FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
537 }
538
539
540 /*
541 =============================================================================
542
543 EVENT MESSAGES
544
545 =============================================================================
546 */
547
548 /*
549 ==================
550 SV_StartParticle
551
552 Make sure the event gets sent to all clients
553 ==================
554 */
555 void SV_StartParticle (vec3_t org, vec3_t dir, int color, int count)
556 {
557         int i;
558
559         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-18)
560                 return;
561         MSG_WriteByte (&sv.datagram, svc_particle);
562         MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
563         MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
564         MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
565         for (i=0 ; i<3 ; i++)
566                 MSG_WriteChar (&sv.datagram, (int)bound(-128, dir[i]*16, 127));
567         MSG_WriteByte (&sv.datagram, count);
568         MSG_WriteByte (&sv.datagram, color);
569         SV_FlushBroadcastMessages();
570 }
571
572 /*
573 ==================
574 SV_StartEffect
575
576 Make sure the event gets sent to all clients
577 ==================
578 */
579 void SV_StartEffect (vec3_t org, int modelindex, int startframe, int framecount, int framerate)
580 {
581         if (modelindex >= 256 || startframe >= 256)
582         {
583                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-19)
584                         return;
585                 MSG_WriteByte (&sv.datagram, svc_effect2);
586                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
587                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
588                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
589                 MSG_WriteShort (&sv.datagram, modelindex);
590                 MSG_WriteShort (&sv.datagram, startframe);
591                 MSG_WriteByte (&sv.datagram, framecount);
592                 MSG_WriteByte (&sv.datagram, framerate);
593         }
594         else
595         {
596                 if (sv.datagram.cursize > MAX_PACKETFRAGMENT-17)
597                         return;
598                 MSG_WriteByte (&sv.datagram, svc_effect);
599                 MSG_WriteCoord (&sv.datagram, org[0], sv.protocol);
600                 MSG_WriteCoord (&sv.datagram, org[1], sv.protocol);
601                 MSG_WriteCoord (&sv.datagram, org[2], sv.protocol);
602                 MSG_WriteByte (&sv.datagram, modelindex);
603                 MSG_WriteByte (&sv.datagram, startframe);
604                 MSG_WriteByte (&sv.datagram, framecount);
605                 MSG_WriteByte (&sv.datagram, framerate);
606         }
607         SV_FlushBroadcastMessages();
608 }
609
610 /*
611 ==================
612 SV_StartSound
613
614 Each entity can have eight independant sound sources, like voice,
615 weapon, feet, etc.
616
617 Channel 0 is an auto-allocate channel, the others override anything
618 already running on that entity/channel pair.
619
620 An attenuation of 0 will play full volume everywhere in the level.
621 Larger attenuations will drop off.  (max 4 attenuation)
622
623 ==================
624 */
625 void SV_StartSound (prvm_edict_t *entity, int channel, const char *sample, int volume, float attenuation)
626 {
627         int sound_num, field_mask, i, ent;
628
629         if (volume < 0 || volume > 255)
630         {
631                 Con_Printf ("SV_StartSound: volume = %i\n", volume);
632                 return;
633         }
634
635         if (attenuation < 0 || attenuation > 4)
636         {
637                 Con_Printf ("SV_StartSound: attenuation = %f\n", attenuation);
638                 return;
639         }
640
641         if (channel < 0 || channel > 7)
642         {
643                 Con_Printf ("SV_StartSound: channel = %i\n", channel);
644                 return;
645         }
646
647         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
648                 return;
649
650 // find precache number for sound
651         sound_num = SV_SoundIndex(sample, 1);
652         if (!sound_num)
653                 return;
654
655         ent = PRVM_NUM_FOR_EDICT(entity);
656
657         field_mask = 0;
658         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
659                 field_mask |= SND_VOLUME;
660         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
661                 field_mask |= SND_ATTENUATION;
662         if (ent >= 8192)
663                 field_mask |= SND_LARGEENTITY;
664         if (sound_num >= 256 || channel >= 8)
665                 field_mask |= SND_LARGESOUND;
666
667 // directed messages go only to the entity they are targeted on
668         MSG_WriteByte (&sv.datagram, svc_sound);
669         MSG_WriteByte (&sv.datagram, field_mask);
670         if (field_mask & SND_VOLUME)
671                 MSG_WriteByte (&sv.datagram, volume);
672         if (field_mask & SND_ATTENUATION)
673                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
674         if (field_mask & SND_LARGEENTITY)
675         {
676                 MSG_WriteShort (&sv.datagram, ent);
677                 MSG_WriteByte (&sv.datagram, channel);
678         }
679         else
680                 MSG_WriteShort (&sv.datagram, (ent<<3) | channel);
681         if ((field_mask & SND_LARGESOUND) || sv.protocol == PROTOCOL_NEHAHRABJP2)
682                 MSG_WriteShort (&sv.datagram, sound_num);
683         else
684                 MSG_WriteByte (&sv.datagram, sound_num);
685         for (i = 0;i < 3;i++)
686                 MSG_WriteCoord (&sv.datagram, entity->fields.server->origin[i]+0.5*(entity->fields.server->mins[i]+entity->fields.server->maxs[i]), sv.protocol);
687         SV_FlushBroadcastMessages();
688 }
689
690 /*
691 ==================
692 SV_StartPointSound
693
694 Nearly the same logic as SV_StartSound, except an origin
695 instead of an entity is provided and channel is omitted.
696
697 The entity sent to the client is 0 (world) and the channel
698 is 0 (CHAN_AUTO).  SND_LARGEENTITY will never occur in this
699 function, therefore the check for it is omitted.
700
701 ==================
702 */
703 void SV_StartPointSound (vec3_t origin, const char *sample, int volume, float attenuation)
704 {
705         int sound_num, field_mask, i;
706
707         if (volume < 0 || volume > 255)
708         {
709                 Con_Printf ("SV_StartPointSound: volume = %i\n", volume);
710                 return;
711         }
712
713         if (attenuation < 0 || attenuation > 4)
714         {
715                 Con_Printf ("SV_StartPointSound: attenuation = %f\n", attenuation);
716                 return;
717         }
718
719         if (sv.datagram.cursize > MAX_PACKETFRAGMENT-21)
720                 return;
721
722         // find precache number for sound
723         sound_num = SV_SoundIndex(sample, 1);
724         if (!sound_num)
725                 return;
726
727         field_mask = 0;
728         if (volume != DEFAULT_SOUND_PACKET_VOLUME)
729                 field_mask |= SND_VOLUME;
730         if (attenuation != DEFAULT_SOUND_PACKET_ATTENUATION)
731                 field_mask |= SND_ATTENUATION;
732         if (sound_num >= 256)
733                 field_mask |= SND_LARGESOUND;
734
735 // directed messages go only to the entity they are targeted on
736         MSG_WriteByte (&sv.datagram, svc_sound);
737         MSG_WriteByte (&sv.datagram, field_mask);
738         if (field_mask & SND_VOLUME)
739                 MSG_WriteByte (&sv.datagram, volume);
740         if (field_mask & SND_ATTENUATION)
741                 MSG_WriteByte (&sv.datagram, (int)(attenuation*64));
742         // Always write entnum 0 for the world entity
743         MSG_WriteShort (&sv.datagram, (0<<3) | 0);
744         if (field_mask & SND_LARGESOUND)
745                 MSG_WriteShort (&sv.datagram, sound_num);
746         else
747                 MSG_WriteByte (&sv.datagram, sound_num);
748         for (i = 0;i < 3;i++)
749                 MSG_WriteCoord (&sv.datagram, origin[i], sv.protocol);
750         SV_FlushBroadcastMessages();
751 }
752
753 /*
754 ==============================================================================
755
756 CLIENT SPAWNING
757
758 ==============================================================================
759 */
760
761 /*
762 ================
763 SV_SendServerinfo
764
765 Sends the first message from the server to a connected client.
766 This will be sent on the initial connection and upon each server load.
767 ================
768 */
769 void SV_SendServerinfo (client_t *client)
770 {
771         int i;
772         char message[128];
773
774         // we know that this client has a netconnection and thus is not a bot
775
776         // edicts get reallocated on level changes, so we need to update it here
777         client->edict = PRVM_EDICT_NUM((client - svs.clients) + 1);
778
779         // clear cached stuff that depends on the level
780         client->weaponmodel[0] = 0;
781         client->weaponmodelindex = 0;
782
783         // LordHavoc: clear entityframe tracking
784         client->latestframenum = 0;
785
786         // initialize the movetime, so a speedhack can't make use of the time before this client joined
787         client->cmd.time = sv.time;
788
789         if (client->entitydatabase)
790                 EntityFrame_FreeDatabase(client->entitydatabase);
791         if (client->entitydatabase4)
792                 EntityFrame4_FreeDatabase(client->entitydatabase4);
793         if (client->entitydatabase5)
794                 EntityFrame5_FreeDatabase(client->entitydatabase5);
795
796         memset(client->stats, 0, sizeof(client->stats));
797         memset(client->statsdeltabits, 0, sizeof(client->statsdeltabits));
798
799         if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
800         {
801                 if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3)
802                         client->entitydatabase = EntityFrame_AllocDatabase(sv_mempool);
803                 else if (sv.protocol == PROTOCOL_DARKPLACES4)
804                         client->entitydatabase4 = EntityFrame4_AllocDatabase(sv_mempool);
805                 else
806                         client->entitydatabase5 = EntityFrame5_AllocDatabase(sv_mempool);
807         }
808
809         // reset csqc entity versions
810         for (i = 0;i < prog->max_edicts;i++)
811         {
812                 client->csqcentityscope[i] = 0;
813                 client->csqcentitysendflags[i] = 0xFFFFFF;
814                 client->csqcentityglobalhistory[i] = 0;
815         }
816         for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
817         {
818                 client->csqcentityframehistory[i].num = 0;
819                 client->csqcentityframehistory[i].framenum = -1;
820         }
821         client->csqcnumedicts = 0;
822         client->csqcentityframehistory_next = 0;
823
824         SZ_Clear (&client->netconnection->message);
825         MSG_WriteByte (&client->netconnection->message, svc_print);
826         dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)\n", gamename, buildstring, prog->filecrc);
827         MSG_WriteString (&client->netconnection->message,message);
828
829         SV_StopDemoRecording(client); // to split up demos into different files
830         if(sv_autodemo_perclient.integer && client->netconnection)
831         {
832                 char demofile[MAX_OSPATH];
833                 char levelname[MAX_QPATH];
834                 char ipaddress[MAX_QPATH];
835                 size_t i;
836
837                 // start a new demo file
838                 strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
839                 if (strrchr(levelname, '.'))
840                         *(strrchr(levelname, '.')) = 0;
841
842                 LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
843                 for(i = 0; ipaddress[i]; ++i)
844                         if(!isalnum(ipaddress[i]))
845                                 ipaddress[i] = '-';
846                 dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
847
848                 SV_StartDemoRecording(client, demofile, -1);
849         }
850
851         //[515]: init csprogs according to version of svprogs, check the crc, etc.
852         if (sv.csqc_progname[0])
853         {
854                 prvm_eval_t *val;
855                 Con_DPrintf("sending csqc info to client (\"%s\" with size %i and crc %i)\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
856                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
857                 MSG_WriteString (&client->netconnection->message, va("csqc_progname %s\n", sv.csqc_progname));
858                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
859                 MSG_WriteString (&client->netconnection->message, va("csqc_progsize %i\n", sv.csqc_progsize));
860                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
861                 MSG_WriteString (&client->netconnection->message, va("csqc_progcrc %i\n", sv.csqc_progcrc));
862
863                 if(client->sv_demo_file != NULL)
864                 {
865                         int i;
866                         static char buf[NET_MAXMESSAGE];
867                         sizebuf_t sb;
868
869                         sb.data = (unsigned char *) buf;
870                         sb.maxsize = sizeof(buf);
871                         i = 0;
872                         while(MakeDownloadPacket(sv.csqc_progname, svs.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
873                                 SV_WriteDemoMessage(client, &sb, false);
874                 }
875
876                 //[515]: init stufftext string (it is sent before svc_serverinfo)
877                 val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.SV_InitCmd);
878                 if (val)
879                 {
880                         MSG_WriteByte (&client->netconnection->message, svc_stufftext);
881                         MSG_WriteString (&client->netconnection->message, va("%s\n", PRVM_GetString(val->string)));
882                 }
883         }
884
885         //if (sv_allowdownloads.integer)
886         // always send the info that the server supports the protocol, even if downloads are forbidden
887         // only because of that, the CSQC exception can work
888         {
889                 MSG_WriteByte (&client->netconnection->message, svc_stufftext);
890                 MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
891         }
892
893         // send at this time so it's guaranteed to get executed at the right time
894         {
895                 client_t *save;
896                 save = host_client;
897                 host_client = client;
898                 Curl_SendRequirements();
899                 host_client = save;
900         }
901
902         MSG_WriteByte (&client->netconnection->message, svc_serverinfo);
903         MSG_WriteLong (&client->netconnection->message, Protocol_NumberForEnum(sv.protocol));
904         MSG_WriteByte (&client->netconnection->message, svs.maxclients);
905
906         if (!coop.integer && deathmatch.integer)
907                 MSG_WriteByte (&client->netconnection->message, GAME_DEATHMATCH);
908         else
909                 MSG_WriteByte (&client->netconnection->message, GAME_COOP);
910
911         MSG_WriteString (&client->netconnection->message,PRVM_GetString(prog->edicts->fields.server->message));
912
913         for (i = 1;i < MAX_MODELS && sv.model_precache[i][0];i++)
914                 MSG_WriteString (&client->netconnection->message, sv.model_precache[i]);
915         MSG_WriteByte (&client->netconnection->message, 0);
916
917         for (i = 1;i < MAX_SOUNDS && sv.sound_precache[i][0];i++)
918                 MSG_WriteString (&client->netconnection->message, sv.sound_precache[i]);
919         MSG_WriteByte (&client->netconnection->message, 0);
920
921 // send music
922         MSG_WriteByte (&client->netconnection->message, svc_cdtrack);
923         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
924         MSG_WriteByte (&client->netconnection->message, (int)prog->edicts->fields.server->sounds);
925
926 // set view
927 // store this in clientcamera, too
928         client->clientcamera = PRVM_NUM_FOR_EDICT(client->edict);
929         MSG_WriteByte (&client->netconnection->message, svc_setview);
930         MSG_WriteShort (&client->netconnection->message, client->clientcamera);
931
932         MSG_WriteByte (&client->netconnection->message, svc_signonnum);
933         MSG_WriteByte (&client->netconnection->message, 1);
934
935         client->spawned = false;                // need prespawn, spawn, etc
936         client->sendsignon = 1;                 // send this message, and increment to 2, 2 will be set to 0 by the prespawn command
937
938         // clear movement info until client enters the new level properly
939         memset(&client->cmd, 0, sizeof(client->cmd));
940         client->movesequence = 0;
941         client->movement_highestsequence_seen = 0;
942         memset(&client->movement_count, 0, sizeof(client->movement_count));
943 #ifdef NUM_PING_TIMES
944         for (i = 0;i < NUM_PING_TIMES;i++)
945                 client->ping_times[i] = 0;
946         client->num_pings = 0;
947 #endif
948         client->ping = 0;
949
950         // allow the client some time to send his keepalives, even if map loading took ages
951         client->netconnection->timeout = realtime + net_connecttimeout.value;
952 }
953
954 /*
955 ================
956 SV_ConnectClient
957
958 Initializes a client_t for a new net connection.  This will only be called
959 once for a player each game, not once for each level change.
960 ================
961 */
962 void SV_ConnectClient (int clientnum, netconn_t *netconnection)
963 {
964         client_t                *client;
965         int                             i;
966         float                   spawn_parms[NUM_SPAWN_PARMS];
967
968         client = svs.clients + clientnum;
969
970 // set up the client_t
971         if (sv.loadgame)
972                 memcpy (spawn_parms, client->spawn_parms, sizeof(spawn_parms));
973         memset (client, 0, sizeof(*client));
974         client->active = true;
975         client->netconnection = netconnection;
976
977         Con_DPrintf("Client %s connected\n", client->netconnection ? client->netconnection->address : "botclient");
978
979         strlcpy(client->name, "unconnected", sizeof(client->name));
980         strlcpy(client->old_name, "unconnected", sizeof(client->old_name));
981         client->spawned = false;
982         client->edict = PRVM_EDICT_NUM(clientnum+1);
983         if (client->netconnection)
984                 client->netconnection->message.allowoverflow = true;            // we can catch it
985         // prepare the unreliable message buffer
986         client->unreliablemsg.data = client->unreliablemsg_data;
987         client->unreliablemsg.maxsize = sizeof(client->unreliablemsg_data);
988         // updated by receiving "rate" command from client, this is also the default if not using a DP client
989         client->rate = 1000000000;
990         // no limits for local player
991         if (client->netconnection && LHNETADDRESS_GetAddressType(&client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP)
992                 client->rate = 1000000000;
993         client->connecttime = realtime;
994
995         if (sv.loadgame)
996                 memcpy (client->spawn_parms, spawn_parms, sizeof(spawn_parms));
997         else
998         {
999                 // call the progs to get default spawn parms for the new client
1000                 // set self to world to intentionally cause errors with broken SetNewParms code in some mods
1001                 prog->globals.server->self = 0;
1002                 PRVM_ExecuteProgram (prog->globals.server->SetNewParms, "QC function SetNewParms is missing");
1003                 for (i=0 ; i<NUM_SPAWN_PARMS ; i++)
1004                         client->spawn_parms[i] = (&prog->globals.server->parm1)[i];
1005
1006                 // set up the entity for this client (including .colormap, .team, etc)
1007                 PRVM_ED_ClearEdict(client->edict);
1008         }
1009
1010         // don't call SendServerinfo for a fresh botclient because its fields have
1011         // not been set up by the qc yet
1012         if (client->netconnection)
1013                 SV_SendServerinfo (client);
1014         else
1015                 client->spawned = true;
1016 }
1017
1018
1019 /*
1020 ===============================================================================
1021
1022 FRAME UPDATES
1023
1024 ===============================================================================
1025 */
1026
1027 /*
1028 =============================================================================
1029
1030 The PVS must include a small area around the client to allow head bobbing
1031 or other small motion on the client side.  Otherwise, a bob might cause an
1032 entity that should be visible to not show up, especially when the bob
1033 crosses a waterline.
1034
1035 =============================================================================
1036 */
1037
1038 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
1039 {
1040         int i;
1041         unsigned int sendflags;
1042         unsigned int version;
1043         unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
1044         unsigned int customizeentityforclient;
1045         unsigned int sendentity;
1046         float f;
1047         vec3_t cullmins, cullmaxs;
1048         dp_model_t *model;
1049         prvm_eval_t *val, *val2;
1050
1051         // fast path for games that do not use legacy entity networking
1052         // note: still networks clients even if they are legacy
1053         sendentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity)->function;
1054         if (sv_onlycsqcnetworking.integer && !sendentity && enumber > svs.maxclients)
1055                 return false;
1056
1057         // this 2 billion unit check is actually to detect NAN origins
1058         // (we really don't want to send those)
1059         if (!(VectorLength2(ent->fields.server->origin) < 2000000000.0*2000000000.0))
1060                 return false;
1061
1062         // EF_NODRAW prevents sending for any reason except for your own
1063         // client, so we must keep all clients in this superset
1064         effects = (unsigned)ent->fields.server->effects;
1065
1066         // we can omit invisible entities with no effects that are not clients
1067         // LordHavoc: this could kill tags attached to an invisible entity, I
1068         // just hope we never have to support that case
1069         i = (int)ent->fields.server->modelindex;
1070         modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model) && sv.models[i]) ? i : 0;
1071
1072         flags = 0;
1073         i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
1074         glowsize = (unsigned char)bound(0, i, 255);
1075         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_trail)->_float)
1076                 flags |= RENDER_GLOWTRAIL;
1077         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict)
1078                 flags |= RENDER_VIEWMODEL;
1079
1080         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[0]*256;
1081         light[0] = (unsigned short)bound(0, f, 65535);
1082         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[1]*256;
1083         light[1] = (unsigned short)bound(0, f, 65535);
1084         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.color)->vector[2]*256;
1085         light[2] = (unsigned short)bound(0, f, 65535);
1086         f = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.light_lev)->_float;
1087         light[3] = (unsigned short)bound(0, f, 65535);
1088         lightstyle = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.style)->_float;
1089         lightpflags = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.pflags)->_float;
1090
1091         if (gamemode == GAME_TENEBRAE)
1092         {
1093                 // tenebrae's EF_FULLDYNAMIC conflicts with Q2's EF_NODRAW
1094                 if (effects & 16)
1095                 {
1096                         effects &= ~16;
1097                         lightpflags |= PFLAGS_FULLDYNAMIC;
1098                 }
1099                 // tenebrae's EF_GREEN conflicts with DP's EF_ADDITIVE
1100                 if (effects & 32)
1101                 {
1102                         effects &= ~32;
1103                         light[0] = (int)(0.2*256);
1104                         light[1] = (int)(1.0*256);
1105                         light[2] = (int)(0.2*256);
1106                         light[3] = 200;
1107                         lightpflags |= PFLAGS_FULLDYNAMIC;
1108                 }
1109         }
1110
1111         specialvisibilityradius = 0;
1112         if (lightpflags & PFLAGS_FULLDYNAMIC)
1113                 specialvisibilityradius = max(specialvisibilityradius, light[3]);
1114         if (glowsize)
1115                 specialvisibilityradius = max(specialvisibilityradius, glowsize * 4);
1116         if (flags & RENDER_GLOWTRAIL)
1117                 specialvisibilityradius = max(specialvisibilityradius, 100);
1118         if (effects & (EF_BRIGHTFIELD | EF_MUZZLEFLASH | EF_BRIGHTLIGHT | EF_DIMLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
1119         {
1120                 if (effects & EF_BRIGHTFIELD)
1121                         specialvisibilityradius = max(specialvisibilityradius, 80);
1122                 if (effects & EF_MUZZLEFLASH)
1123                         specialvisibilityradius = max(specialvisibilityradius, 100);
1124                 if (effects & EF_BRIGHTLIGHT)
1125                         specialvisibilityradius = max(specialvisibilityradius, 400);
1126                 if (effects & EF_DIMLIGHT)
1127                         specialvisibilityradius = max(specialvisibilityradius, 200);
1128                 if (effects & EF_RED)
1129                         specialvisibilityradius = max(specialvisibilityradius, 200);
1130                 if (effects & EF_BLUE)
1131                         specialvisibilityradius = max(specialvisibilityradius, 200);
1132                 if (effects & EF_FLAME)
1133                         specialvisibilityradius = max(specialvisibilityradius, 250);
1134                 if (effects & EF_STARDUST)
1135                         specialvisibilityradius = max(specialvisibilityradius, 100);
1136         }
1137
1138         // early culling checks
1139         // (final culling is done by SV_MarkWriteEntityStateToClient)
1140         customizeentityforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.customizeentityforclient)->function;
1141         if (!customizeentityforclient && enumber > svs.maxclients && (!modelindex && !specialvisibilityradius))
1142                 return false;
1143
1144         *cs = defaultstate;
1145         cs->active = ACTIVE_NETWORK;
1146         cs->number = enumber;
1147         VectorCopy(ent->fields.server->origin, cs->origin);
1148         VectorCopy(ent->fields.server->angles, cs->angles);
1149         cs->flags = flags;
1150         cs->effects = effects;
1151         cs->colormap = (unsigned)ent->fields.server->colormap;
1152         cs->modelindex = modelindex;
1153         cs->skin = (unsigned)ent->fields.server->skin;
1154         cs->frame = (unsigned)ent->fields.server->frame;
1155         cs->viewmodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewmodelforclient)->edict;
1156         cs->exteriormodelforclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.exteriormodeltoclient)->edict;
1157         cs->nodrawtoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.nodrawtoclient)->edict;
1158         cs->drawonlytoclient = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.drawonlytoclient)->edict;
1159         cs->customizeentityforclient = customizeentityforclient;
1160         cs->tagentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_entity)->edict;
1161         cs->tagindex = (unsigned char)PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.tag_index)->_float;
1162         cs->glowsize = glowsize;
1163
1164         // don't need to init cs->colormod because the defaultstate did that for us
1165         //cs->colormod[0] = cs->colormod[1] = cs->colormod[2] = 32;
1166         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.colormod);
1167         if (val->vector[0] || val->vector[1] || val->vector[2])
1168         {
1169                 i = (int)(val->vector[0] * 32.0f);cs->colormod[0] = bound(0, i, 255);
1170                 i = (int)(val->vector[1] * 32.0f);cs->colormod[1] = bound(0, i, 255);
1171                 i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
1172         }
1173
1174         // don't need to init cs->glowmod because the defaultstate did that for us
1175         //cs->glowmod[0] = cs->glowmod[1] = cs->glowmod[2] = 32;
1176         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glowmod);
1177         if (val->vector[0] || val->vector[1] || val->vector[2])
1178         {
1179                 i = (int)(val->vector[0] * 32.0f);cs->glowmod[0] = bound(0, i, 255);
1180                 i = (int)(val->vector[1] * 32.0f);cs->glowmod[1] = bound(0, i, 255);
1181                 i = (int)(val->vector[2] * 32.0f);cs->glowmod[2] = bound(0, i, 255);
1182         }
1183
1184         cs->modelindex = modelindex;
1185
1186         cs->alpha = 255;
1187         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.alpha)->_float * 255.0f);
1188         if (f)
1189         {
1190                 i = (int)f;
1191                 cs->alpha = (unsigned char)bound(0, i, 255);
1192         }
1193         // halflife
1194         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.renderamt)->_float);
1195         if (f)
1196         {
1197                 i = (int)f;
1198                 cs->alpha = (unsigned char)bound(0, i, 255);
1199         }
1200
1201         cs->scale = 16;
1202         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.scale)->_float * 16.0f);
1203         if (f)
1204         {
1205                 i = (int)f;
1206                 cs->scale = (unsigned char)bound(0, i, 255);
1207         }
1208
1209         cs->glowcolor = 254;
1210         f = (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_color)->_float);
1211         if (f)
1212                 cs->glowcolor = (int)f;
1213
1214         if (PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.fullbright)->_float)
1215                 cs->effects |= EF_FULLBRIGHT;
1216
1217         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.modelflags);
1218         if (val && val->_float)
1219                 cs->effects |= ((unsigned int)val->_float & 0xff) << 24;
1220
1221         if (ent->fields.server->movetype == MOVETYPE_STEP)
1222                 cs->flags |= RENDER_STEP;
1223         if (cs->number != sv.writeentitiestoclient_cliententitynumber && (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)
1224                 cs->flags |= RENDER_LOWPRECISION;
1225         if (ent->fields.server->colormap >= 1024)
1226                 cs->flags |= RENDER_COLORMAPPED;
1227         if (cs->viewmodelforclient)
1228                 cs->flags |= RENDER_VIEWMODEL; // show relative to the view
1229
1230         cs->light[0] = light[0];
1231         cs->light[1] = light[1];
1232         cs->light[2] = light[2];
1233         cs->light[3] = light[3];
1234         cs->lightstyle = lightstyle;
1235         cs->lightpflags = lightpflags;
1236
1237         cs->specialvisibilityradius = specialvisibilityradius;
1238
1239         // calculate the visible box of this entity (don't use the physics box
1240         // as that is often smaller than a model, and would not count
1241         // specialvisibilityradius)
1242         if ((model = SV_GetModelByIndex(modelindex)) && (model->type != mod_null))
1243         {
1244                 float scale = cs->scale * (1.0f / 16.0f);
1245                 if (cs->angles[0] || cs->angles[2]) // pitch and roll
1246                 {
1247                         VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
1248                         VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
1249                 }
1250                 else if (cs->angles[1] || ((effects | model->effects) & EF_ROTATE))
1251                 {
1252                         VectorMA(cs->origin, scale, model->yawmins, cullmins);
1253                         VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
1254                 }
1255                 else
1256                 {
1257                         VectorMA(cs->origin, scale, model->normalmins, cullmins);
1258                         VectorMA(cs->origin, scale, model->normalmaxs, cullmaxs);
1259                 }
1260         }
1261         else
1262         {
1263                 // if there is no model (or it could not be loaded), use the physics box
1264                 VectorAdd(cs->origin, ent->fields.server->mins, cullmins);
1265                 VectorAdd(cs->origin, ent->fields.server->maxs, cullmaxs);
1266         }
1267         if (specialvisibilityradius)
1268         {
1269                 cullmins[0] = min(cullmins[0], cs->origin[0] - specialvisibilityradius);
1270                 cullmins[1] = min(cullmins[1], cs->origin[1] - specialvisibilityradius);
1271                 cullmins[2] = min(cullmins[2], cs->origin[2] - specialvisibilityradius);
1272                 cullmaxs[0] = max(cullmaxs[0], cs->origin[0] + specialvisibilityradius);
1273                 cullmaxs[1] = max(cullmaxs[1], cs->origin[1] + specialvisibilityradius);
1274                 cullmaxs[2] = max(cullmaxs[2], cs->origin[2] + specialvisibilityradius);
1275         }
1276
1277         // calculate center of bbox for network prioritization purposes
1278         VectorMAM(0.5f, cullmins, 0.5f, cullmaxs, cs->netcenter);
1279
1280         // if culling box has moved, update pvs cluster links
1281         if (!VectorCompare(cullmins, ent->priv.server->cullmins) || !VectorCompare(cullmaxs, ent->priv.server->cullmaxs))
1282         {
1283                 VectorCopy(cullmins, ent->priv.server->cullmins);
1284                 VectorCopy(cullmaxs, ent->priv.server->cullmaxs);
1285                 // a value of -1 for pvs_numclusters indicates that the links are not
1286                 // cached, and should be re-tested each time, this is the case if the
1287                 // culling box touches too many pvs clusters to store, or if the world
1288                 // model does not support FindBoxClusters
1289                 ent->priv.server->pvs_numclusters = -1;
1290                 if (sv.worldmodel && sv.worldmodel->brush.FindBoxClusters)
1291                 {
1292                         i = sv.worldmodel->brush.FindBoxClusters(sv.worldmodel, cullmins, cullmaxs, MAX_ENTITYCLUSTERS, ent->priv.server->pvs_clusterlist);
1293                         if (i <= MAX_ENTITYCLUSTERS)
1294                                 ent->priv.server->pvs_numclusters = i;
1295                 }
1296         }
1297
1298         // we need to do some csqc entity upkeep here
1299         // get self.SendFlags and clear them
1300         // (to let the QC know that they've been read)
1301         if (sendentity)
1302         {
1303                 val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
1304                 sendflags = (unsigned int)val->_float;
1305                 val->_float = 0;
1306                 // legacy self.Version system
1307                 val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
1308                 if (val2->_float)
1309                 {
1310                         version = (unsigned int)val2->_float;
1311                         if (sv.csqcentityversion[enumber] != version)
1312                                 sendflags = 0xFFFFFF;
1313                         sv.csqcentityversion[enumber] = version;
1314                 }
1315                 // move sendflags into the per-client sendflags
1316                 if (sendflags)
1317                         for (i = 0;i < svs.maxclients;i++)
1318                                 svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
1319                 // mark it as inactive for non-csqc networking
1320                 cs->active = ACTIVE_SHARED;
1321         }
1322
1323         return true;
1324 }
1325
1326 void SV_PrepareEntitiesForSending(void)
1327 {
1328         int e;
1329         prvm_edict_t *ent;
1330         // send all entities that touch the pvs
1331         sv.numsendentities = 0;
1332         sv.sendentitiesindex[0] = NULL;
1333         memset(sv.sendentitiesindex, 0, prog->num_edicts * sizeof(*sv.sendentitiesindex));
1334         for (e = 1, ent = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ent = PRVM_NEXT_EDICT(ent))
1335         {
1336                 if (!ent->priv.server->free && SV_PrepareEntityForSending(ent, sv.sendentities + sv.numsendentities, e))
1337                 {
1338                         sv.sendentitiesindex[e] = sv.sendentities + sv.numsendentities;
1339                         sv.numsendentities++;
1340                 }
1341         }
1342 }
1343
1344 #define MAX_LINEOFSIGHTTRACES 64
1345
1346 qboolean SV_CanSeeBox(int numtraces, vec_t enlarge, vec3_t eye, vec3_t entboxmins, vec3_t entboxmaxs)
1347 {
1348         float pitchsign;
1349         float alpha;
1350         float starttransformed[3], endtransformed[3];
1351         int blocked = 0;
1352         int traceindex;
1353         int originalnumtouchedicts;
1354         int numtouchedicts = 0;
1355         int touchindex;
1356         matrix4x4_t matrix, imatrix;
1357         dp_model_t *model;
1358         prvm_edict_t *touch;
1359         static prvm_edict_t *touchedicts[MAX_EDICTS];
1360         vec3_t boxmins, boxmaxs;
1361         vec3_t clipboxmins, clipboxmaxs;
1362         vec3_t endpoints[MAX_LINEOFSIGHTTRACES];
1363
1364         numtraces = min(numtraces, MAX_LINEOFSIGHTTRACES);
1365
1366         // expand the box a little
1367         boxmins[0] = (enlarge+1) * entboxmins[0] - enlarge * entboxmaxs[0];
1368         boxmaxs[0] = (enlarge+1) * entboxmaxs[0] - enlarge * entboxmins[0];
1369         boxmins[1] = (enlarge+1) * entboxmins[1] - enlarge * entboxmaxs[1];
1370         boxmaxs[1] = (enlarge+1) * entboxmaxs[1] - enlarge * entboxmins[1];
1371         boxmins[2] = (enlarge+1) * entboxmins[2] - enlarge * entboxmaxs[2];
1372         boxmaxs[2] = (enlarge+1) * entboxmaxs[2] - enlarge * entboxmins[2];
1373
1374         VectorMAM(0.5f, boxmins, 0.5f, boxmaxs, endpoints[0]);
1375         for (traceindex = 1;traceindex < numtraces;traceindex++)
1376                 VectorSet(endpoints[traceindex], lhrandom(boxmins[0], boxmaxs[0]), lhrandom(boxmins[1], boxmaxs[1]), lhrandom(boxmins[2], boxmaxs[2]));
1377
1378         // calculate sweep box for the entire swarm of traces
1379         VectorCopy(eye, clipboxmins);
1380         VectorCopy(eye, clipboxmaxs);
1381         for (traceindex = 0;traceindex < numtraces;traceindex++)
1382         {
1383                 clipboxmins[0] = min(clipboxmins[0], endpoints[traceindex][0]);
1384                 clipboxmins[1] = min(clipboxmins[1], endpoints[traceindex][1]);
1385                 clipboxmins[2] = min(clipboxmins[2], endpoints[traceindex][2]);
1386                 clipboxmaxs[0] = max(clipboxmaxs[0], endpoints[traceindex][0]);
1387                 clipboxmaxs[1] = max(clipboxmaxs[1], endpoints[traceindex][1]);
1388                 clipboxmaxs[2] = max(clipboxmaxs[2], endpoints[traceindex][2]);
1389         }
1390
1391         // get the list of entities in the sweep box
1392         if (sv_cullentities_trace_entityocclusion.integer)
1393                 numtouchedicts = World_EntitiesInBox(&sv.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
1394         if (numtouchedicts > MAX_EDICTS)
1395         {
1396                 // this never happens
1397                 Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
1398                 numtouchedicts = MAX_EDICTS;
1399         }
1400         // iterate the entities found in the sweep box and filter them
1401         originalnumtouchedicts = numtouchedicts;
1402         numtouchedicts = 0;
1403         for (touchindex = 0;touchindex < originalnumtouchedicts;touchindex++)
1404         {
1405                 touch = touchedicts[touchindex];
1406                 if (touch->fields.server->solid != SOLID_BSP)
1407                         continue;
1408                 model = SV_GetModelFromEdict(touch);
1409                 if (!model || !model->brush.TraceLineOfSight)
1410                         continue;
1411                 // skip obviously transparent entities
1412                 alpha = PRVM_EDICTFIELDVALUE(touch, prog->fieldoffsets.alpha)->_float;
1413                 if (alpha && alpha < 1)
1414                         continue;
1415                 if ((int)touch->fields.server->effects & EF_ADDITIVE)
1416                         continue;
1417                 touchedicts[numtouchedicts++] = touch;
1418         }
1419
1420         // now that we have a filtered list of "interesting" entities, fire each
1421         // ray against all of them, this gives us an early-out case when something
1422         // is visible (which it often is)
1423
1424         for (traceindex = 0;traceindex < numtraces;traceindex++)
1425         {
1426                 // check world occlusion
1427                 if (sv.worldmodel && sv.worldmodel->brush.TraceLineOfSight)
1428                         if (!sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, eye, endpoints[traceindex]))
1429                                 continue;
1430                 for (touchindex = 0;touchindex < numtouchedicts;touchindex++)
1431                 {
1432                         touch = touchedicts[touchindex];
1433                         model = SV_GetModelFromEdict(touch);
1434                         if(model && model->brush.TraceLineOfSight)
1435                         {
1436                                 // get the entity matrix
1437                                 pitchsign = SV_GetPitchSign(touch);
1438                                 Matrix4x4_CreateFromQuakeEntity(&matrix, touch->fields.server->origin[0], touch->fields.server->origin[1], touch->fields.server->origin[2], pitchsign * touch->fields.server->angles[0], touch->fields.server->angles[1], touch->fields.server->angles[2], 1);
1439                                 Matrix4x4_Invert_Simple(&imatrix, &matrix);
1440                                 // see if the ray hits this entity
1441                                 Matrix4x4_Transform(&imatrix, eye, starttransformed);
1442                                 Matrix4x4_Transform(&imatrix, endpoints[traceindex], endtransformed);
1443                                 if (!model->brush.TraceLineOfSight(model, starttransformed, endtransformed))
1444                                 {
1445                                         blocked++;
1446                                         break;
1447                                 }
1448                         }
1449                 }
1450                 // check if the ray was blocked
1451                 if (touchindex < numtouchedicts)
1452                         continue;
1453                 // return if the ray was not blocked
1454                 return true;
1455         }
1456
1457         // no rays survived
1458         return false;
1459 }
1460
1461 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
1462 {
1463         int isbmodel;
1464         dp_model_t *model;
1465         prvm_edict_t *ed;
1466         if (sv.sententitiesconsideration[s->number] == sv.sententitiesmark)
1467                 return;
1468         sv.sententitiesconsideration[s->number] = sv.sententitiesmark;
1469         sv.writeentitiestoclient_stats_totalentities++;
1470
1471         if (s->customizeentityforclient)
1472         {
1473                 prog->globals.server->self = s->number;
1474                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1475                 PRVM_ExecuteProgram(s->customizeentityforclient, "customizeentityforclient: NULL function");
1476                 if(!PRVM_G_FLOAT(OFS_RETURN) || !SV_PrepareEntityForSending(PRVM_EDICT_NUM(s->number), s, s->number))
1477                         return;
1478         }
1479
1480         // never reject player
1481         if (s->number != sv.writeentitiestoclient_cliententitynumber)
1482         {
1483                 // check various rejection conditions
1484                 if (s->nodrawtoclient == sv.writeentitiestoclient_cliententitynumber)
1485                         return;
1486                 if (s->drawonlytoclient && s->drawonlytoclient != sv.writeentitiestoclient_cliententitynumber)
1487                         return;
1488                 if (s->effects & EF_NODRAW)
1489                         return;
1490                 // LordHavoc: only send entities with a model or important effects
1491                 if (!s->modelindex && s->specialvisibilityradius == 0)
1492                         return;
1493
1494                 isbmodel = (model = SV_GetModelByIndex(s->modelindex)) != NULL && model->name[0] == '*';
1495                 // viewmodels don't have visibility checking
1496                 if (s->viewmodelforclient)
1497                 {
1498                         if (s->viewmodelforclient != sv.writeentitiestoclient_cliententitynumber)
1499                                 return;
1500                 }
1501                 else if (s->tagentity)
1502                 {
1503                         // tag attached entities simply check their parent
1504                         if (!sv.sendentitiesindex[s->tagentity])
1505                                 return;
1506                         SV_MarkWriteEntityStateToClient(sv.sendentitiesindex[s->tagentity]);
1507                         if (sv.sententities[s->tagentity] != sv.sententitiesmark)
1508                                 return;
1509                 }
1510                 // always send world submodels in newer protocols because they don't
1511                 // generate much traffic (in old protocols they hog bandwidth)
1512                 // but only if sv_cullentities_nevercullbmodels is off
1513                 else if (!(s->effects & EF_NODEPTHTEST) && (!isbmodel || !sv_cullentities_nevercullbmodels.integer || sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE))
1514                 {
1515                         // entity has survived every check so far, check if visible
1516                         ed = PRVM_EDICT_NUM(s->number);
1517
1518                         // if not touching a visible leaf
1519                         if (sv_cullentities_pvs.integer && !r_novis.integer && sv.writeentitiestoclient_pvsbytes)
1520                         {
1521                                 if (ed->priv.server->pvs_numclusters < 0)
1522                                 {
1523                                         // entity too big for clusters list
1524                                         if (sv.worldmodel && sv.worldmodel->brush.BoxTouchingPVS && !sv.worldmodel->brush.BoxTouchingPVS(sv.worldmodel, sv.writeentitiestoclient_pvs, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1525                                         {
1526                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1527                                                 return;
1528                                         }
1529                                 }
1530                                 else
1531                                 {
1532                                         int i;
1533                                         // check cached clusters list
1534                                         for (i = 0;i < ed->priv.server->pvs_numclusters;i++)
1535                                                 if (CHECKPVSBIT(sv.writeentitiestoclient_pvs, ed->priv.server->pvs_clusterlist[i]))
1536                                                         break;
1537                                         if (i == ed->priv.server->pvs_numclusters)
1538                                         {
1539                                                 sv.writeentitiestoclient_stats_culled_pvs++;
1540                                                 return;
1541                                         }
1542                                 }
1543                         }
1544
1545                         // or not seen by random tracelines
1546                         if (sv_cullentities_trace.integer && !isbmodel && sv.worldmodel->brush.TraceLineOfSight)
1547                         {
1548                                 int samples =
1549                                         s->number <= svs.maxclients
1550                                                 ? sv_cullentities_trace_samples_players.integer
1551                                                 :
1552                                         s->specialvisibilityradius
1553                                                 ? sv_cullentities_trace_samples_extra.integer
1554                                                 : sv_cullentities_trace_samples.integer;
1555                                 float enlarge = sv_cullentities_trace_enlarge.value;
1556
1557                                 if(samples > 0)
1558                                 {
1559                                         int eyeindex;
1560                                         for (eyeindex = 0;eyeindex < sv.writeentitiestoclient_numeyes;eyeindex++)
1561                                                 if(SV_CanSeeBox(samples, enlarge, sv.writeentitiestoclient_eyes[eyeindex], ed->priv.server->cullmins, ed->priv.server->cullmaxs))
1562                                                         break;
1563                                         if(eyeindex < sv.writeentitiestoclient_numeyes)
1564                                                 svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
1565                                                         realtime + (
1566                                                                 s->number <= svs.maxclients
1567                                                                         ? sv_cullentities_trace_delay_players.value
1568                                                                         : sv_cullentities_trace_delay.value
1569                                                         );
1570                                         else if (realtime > svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number])
1571                                         {
1572                                                 sv.writeentitiestoclient_stats_culled_trace++;
1573                                                 return;
1574                                         }
1575                                 }
1576                         }
1577                 }
1578         }
1579
1580         // this just marks it for sending
1581         // FIXME: it would be more efficient to send here, but the entity
1582         // compressor isn't that flexible
1583         sv.writeentitiestoclient_stats_visibleentities++;
1584         sv.sententities[s->number] = sv.sententitiesmark;
1585 }
1586
1587 #if MAX_LEVELNETWORKEYES > 0
1588 #define MAX_EYE_RECURSION 1 // increase if recursion gets supported by portals
1589 void SV_AddCameraEyes(void)
1590 {
1591         int e, i, j, k;
1592         prvm_edict_t *ed;
1593         int cameras[MAX_LEVELNETWORKEYES];
1594         vec3_t camera_origins[MAX_LEVELNETWORKEYES];
1595         int eye_levels[MAX_CLIENTNETWORKEYES];
1596         int n_cameras = 0;
1597         vec3_t mi, ma;
1598         prvm_eval_t *valendpos, *val;
1599
1600         if(!prog->fieldoffsets.camera_transform)
1601                 return;
1602         valendpos = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_endpos);
1603         if(!valendpos)
1604                 return;
1605
1606         for(i = 0; i < sv.writeentitiestoclient_numeyes; ++i)
1607                 eye_levels[i] = 0;
1608
1609         // check line of sight to portal entities and add them to PVS
1610         for (e = 1, ed = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ed = PRVM_NEXT_EDICT(ed))
1611         {
1612                 if (!ed->priv.server->free)
1613                 {
1614                         if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.camera_transform)) && val->function)
1615                         {
1616                                 prog->globals.server->self = e;
1617                                 prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
1618                                 VectorCopy(sv.writeentitiestoclient_eyes[0], valendpos->vector);
1619                                 VectorCopy(sv.writeentitiestoclient_eyes[0], PRVM_G_VECTOR(OFS_PARM0));
1620                                 VectorClear(PRVM_G_VECTOR(OFS_PARM1));
1621                                 PRVM_ExecuteProgram(val->function, "QC function e.camera_transform is missing");
1622                                 if(!VectorCompare(valendpos->vector, sv.writeentitiestoclient_eyes[0]))
1623                                         VectorCopy(valendpos->vector, camera_origins[n_cameras]);
1624                                 cameras[n_cameras] = e;
1625                                 ++n_cameras;
1626                                 if(n_cameras >= MAX_LEVELNETWORKEYES)
1627                                         break;
1628                         }
1629                 }
1630         }
1631
1632         if(!n_cameras)
1633                 return;
1634
1635         // i is loop counter, is reset to 0 when an eye got added
1636         // j is camera index to check
1637         for(i = 0, j = 0; sv.writeentitiestoclient_numeyes < MAX_CLIENTNETWORKEYES && i < n_cameras; ++i, ++j, j %= n_cameras)
1638         {
1639                 if(!cameras[j])
1640                         continue;
1641                 ed = PRVM_EDICT_NUM(cameras[j]);
1642                 VectorAdd(ed->fields.server->origin, ed->fields.server->mins, mi);
1643                 VectorAdd(ed->fields.server->origin, ed->fields.server->maxs, ma);
1644                 for(k = 0; k < sv.writeentitiestoclient_numeyes; ++k)
1645                 if(eye_levels[k] <= MAX_EYE_RECURSION)
1646                 {
1647                         if(SV_CanSeeBox(sv_cullentities_trace_samples.integer, sv_cullentities_trace_enlarge.value, sv.writeentitiestoclient_eyes[k], mi, ma))
1648                         {
1649                                 eye_levels[sv.writeentitiestoclient_numeyes] = eye_levels[k] + 1;
1650                                 VectorCopy(camera_origins[j], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1651                                 // Con_Printf("added eye %d: %f %f %f because we can see %f %f %f .. %f %f %f from eye %d\n", j, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][0], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][1], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes][2], mi[0], mi[1], mi[2], ma[0], ma[1], ma[2], k);
1652                                 sv.writeentitiestoclient_numeyes++;
1653                                 cameras[j] = 0;
1654                                 i = 0;
1655                                 break;
1656                         }
1657                 }
1658         }
1659 }
1660 #else
1661 void SV_AddCameraEyes(void)
1662 {
1663 }
1664 #endif
1665
1666 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
1667 {
1668         qboolean need_empty = false;
1669         int i, numsendstates, numcsqcsendstates;
1670         entity_state_t *s;
1671         prvm_edict_t *camera;
1672         qboolean success;
1673         vec3_t eye;
1674
1675         // if there isn't enough space to accomplish anything, skip it
1676         if (msg->cursize + 25 > maxsize)
1677                 return;
1678
1679         sv.writeentitiestoclient_msg = msg;
1680         sv.writeentitiestoclient_clientnumber = client - svs.clients;
1681
1682         sv.writeentitiestoclient_stats_culled_pvs = 0;
1683         sv.writeentitiestoclient_stats_culled_trace = 0;
1684         sv.writeentitiestoclient_stats_visibleentities = 0;
1685         sv.writeentitiestoclient_stats_totalentities = 0;
1686         sv.writeentitiestoclient_numeyes = 0;
1687
1688         // get eye location
1689         sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
1690         camera = PRVM_EDICT_NUM( client->clientcamera );
1691         VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, eye);
1692         sv.writeentitiestoclient_pvsbytes = 0;
1693         // get the PVS values for the eye location, later FatPVS calls will merge
1694         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1695                 sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, eye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), sv.writeentitiestoclient_pvsbytes != 0);
1696
1697         // add the eye to a list for SV_CanSeeBox tests
1698         VectorCopy(eye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1699         sv.writeentitiestoclient_numeyes++;
1700
1701         // calculate predicted eye origin for SV_CanSeeBox tests
1702         if (sv_cullentities_trace_prediction.integer)
1703         {
1704                 vec_t predtime = bound(0, host_client->ping, sv_cullentities_trace_prediction_time.value);
1705                 vec3_t predeye;
1706                 VectorMA(eye, predtime, camera->fields.server->velocity, predeye);
1707                 if (SV_CanSeeBox(1, 0, eye, predeye, predeye))
1708                 {
1709                         VectorCopy(predeye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
1710                         sv.writeentitiestoclient_numeyes++;
1711                 }
1712                 //if (!sv.writeentitiestoclient_useprediction)
1713                 //      Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
1714         }
1715
1716         SV_AddCameraEyes();
1717
1718         // build PVS from the new eyes
1719         if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
1720                 for(i = 1; i < sv.writeentitiestoclient_numeyes; ++i)
1721                         sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_eyes[i], 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), sv.writeentitiestoclient_pvsbytes != 0);
1722
1723         sv.sententitiesmark++;
1724
1725         for (i = 0;i < sv.numsendentities;i++)
1726                 SV_MarkWriteEntityStateToClient(sv.sendentities + i);
1727
1728         numsendstates = 0;
1729         numcsqcsendstates = 0;
1730         for (i = 0;i < sv.numsendentities;i++)
1731         {
1732                 s = &sv.sendentities[i];
1733                 if (sv.sententities[s->number] == sv.sententitiesmark)
1734                 {
1735                         if(s->active == ACTIVE_NETWORK)
1736                         {
1737                                 if (s->exteriormodelforclient)
1738                                 {
1739                                         if (s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
1740                                                 s->flags |= RENDER_EXTERIORMODEL;
1741                                         else
1742                                                 s->flags &= ~RENDER_EXTERIORMODEL;
1743                                 }
1744                                 sv.writeentitiestoclient_sendstates[numsendstates++] = s;
1745                         }
1746                         else if(sv.sendentities[i].active == ACTIVE_SHARED)
1747                                 sv.writeentitiestoclient_csqcsendstates[numcsqcsendstates++] = s->number;
1748                         else
1749                                 Con_Printf("entity %d is in sv.sendentities and marked, but not active, please breakpoint me\n", s->number);
1750                 }
1751         }
1752
1753         if (sv_cullentities_stats.integer)
1754                 Con_Printf("client \"%s\" entities: %d total, %d visible, %d culled by: %d pvs %d trace\n", client->name, sv.writeentitiestoclient_stats_totalentities, sv.writeentitiestoclient_stats_visibleentities, sv.writeentitiestoclient_stats_culled_pvs + sv.writeentitiestoclient_stats_culled_trace, sv.writeentitiestoclient_stats_culled_pvs, sv.writeentitiestoclient_stats_culled_trace);
1755
1756         if(client->entitydatabase5)
1757                 need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, client->entitydatabase5->latestframenum + 1);
1758         else
1759                 EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, 0);
1760
1761         if(client->num_skippedentityframes >= 10)
1762                 need_empty = true; // force every 10th frame to be not empty (or cl_movement replay takes too long)
1763
1764         if (client->entitydatabase5)
1765                 success = EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
1766         else if (client->entitydatabase4)
1767         {
1768                 success = EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
1769                 Protocol_WriteStatsReliable();
1770         }
1771         else if (client->entitydatabase)
1772         {
1773                 success = EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
1774                 Protocol_WriteStatsReliable();
1775         }
1776         else
1777         {
1778                 success = EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
1779                 Protocol_WriteStatsReliable();
1780         }
1781
1782         if(success)
1783                 client->num_skippedentityframes = 0;
1784         else
1785                 ++client->num_skippedentityframes;
1786 }
1787
1788 /*
1789 =============
1790 SV_CleanupEnts
1791
1792 =============
1793 */
1794 static void SV_CleanupEnts (void)
1795 {
1796         int             e;
1797         prvm_edict_t    *ent;
1798
1799         ent = PRVM_NEXT_EDICT(prog->edicts);
1800         for (e=1 ; e<prog->num_edicts ; e++, ent = PRVM_NEXT_EDICT(ent))
1801                 ent->fields.server->effects = (int)ent->fields.server->effects & ~EF_MUZZLEFLASH;
1802 }
1803
1804 /*
1805 ==================
1806 SV_WriteClientdataToMessage
1807
1808 ==================
1809 */
1810 void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats)
1811 {
1812         int             bits;
1813         int             i;
1814         prvm_edict_t    *other;
1815         int             items;
1816         prvm_eval_t     *val;
1817         vec3_t  punchvector;
1818         int             viewzoom;
1819         const char *s;
1820         float   *statsf = (float *)stats;
1821
1822 //
1823 // send a damage message
1824 //
1825         if (ent->fields.server->dmg_take || ent->fields.server->dmg_save)
1826         {
1827                 other = PRVM_PROG_TO_EDICT(ent->fields.server->dmg_inflictor);
1828                 MSG_WriteByte (msg, svc_damage);
1829                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_save);
1830                 MSG_WriteByte (msg, (int)ent->fields.server->dmg_take);
1831                 for (i=0 ; i<3 ; i++)
1832                         MSG_WriteCoord (msg, other->fields.server->origin[i] + 0.5*(other->fields.server->mins[i] + other->fields.server->maxs[i]), sv.protocol);
1833
1834                 ent->fields.server->dmg_take = 0;
1835                 ent->fields.server->dmg_save = 0;
1836         }
1837
1838 //
1839 // send the current viewpos offset from the view entity
1840 //
1841         SV_SetIdealPitch ();            // how much to look up / down ideally
1842
1843 // a fixangle might get lost in a dropped packet.  Oh well.
1844         if(ent->fields.server->fixangle)
1845         {
1846                 // angle fixing was requested by global thinking code...
1847                 // so store the current angles for later use
1848                 memcpy(host_client->fixangle_angles, ent->fields.server->angles, sizeof(host_client->fixangle_angles));
1849                 host_client->fixangle_angles_set = TRUE;
1850
1851                 // and clear fixangle for the next frame
1852                 ent->fields.server->fixangle = 0;
1853         }
1854
1855         if (host_client->fixangle_angles_set)
1856         {
1857                 MSG_WriteByte (msg, svc_setangle);
1858                 for (i=0 ; i < 3 ; i++)
1859                         MSG_WriteAngle (msg, host_client->fixangle_angles[i], sv.protocol);
1860                 host_client->fixangle_angles_set = FALSE;
1861         }
1862
1863         // stuff the sigil bits into the high bits of items for sbar, or else
1864         // mix in items2
1865         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.items2);
1866         if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE)
1867                 items = (int)ent->fields.server->items | ((int)val->_float << 23);
1868         else
1869                 items = (int)ent->fields.server->items | ((int)prog->globals.server->serverflags << 28);
1870
1871         VectorClear(punchvector);
1872         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.punchvector)))
1873                 VectorCopy(val->vector, punchvector);
1874
1875         // cache weapon model name and index in client struct to save time
1876         // (this search can be almost 1% of cpu time!)
1877         s = PRVM_GetString(ent->fields.server->weaponmodel);
1878         if (strcmp(s, client->weaponmodel))
1879         {
1880                 strlcpy(client->weaponmodel, s, sizeof(client->weaponmodel));
1881                 client->weaponmodelindex = SV_ModelIndex(s, 1);
1882         }
1883
1884         viewzoom = 255;
1885         if ((val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.viewzoom)))
1886                 viewzoom = (int)(val->_float * 255.0f);
1887         if (viewzoom == 0)
1888                 viewzoom = 255;
1889
1890         bits = 0;
1891
1892         if ((int)ent->fields.server->flags & FL_ONGROUND)
1893                 bits |= SU_ONGROUND;
1894         if (ent->fields.server->waterlevel >= 2)
1895                 bits |= SU_INWATER;
1896         if (ent->fields.server->idealpitch)
1897                 bits |= SU_IDEALPITCH;
1898
1899         for (i=0 ; i<3 ; i++)
1900         {
1901                 if (ent->fields.server->punchangle[i])
1902                         bits |= (SU_PUNCH1<<i);
1903                 if (sv.protocol != PROTOCOL_QUAKE && sv.protocol != PROTOCOL_QUAKEDP && sv.protocol != PROTOCOL_NEHAHRAMOVIE && sv.protocol != PROTOCOL_NEHAHRABJP && sv.protocol != PROTOCOL_NEHAHRABJP2 && sv.protocol != PROTOCOL_NEHAHRABJP3)
1904                         if (punchvector[i])
1905                                 bits |= (SU_PUNCHVEC1<<i);
1906                 if (ent->fields.server->velocity[i])
1907                         bits |= (SU_VELOCITY1<<i);
1908         }
1909
1910         memset(stats, 0, sizeof(int[MAX_CL_STATS]));
1911         stats[STAT_VIEWHEIGHT] = (int)ent->fields.server->view_ofs[2];
1912         stats[STAT_ITEMS] = items;
1913         stats[STAT_WEAPONFRAME] = (int)ent->fields.server->weaponframe;
1914         stats[STAT_ARMOR] = (int)ent->fields.server->armorvalue;
1915         stats[STAT_WEAPON] = client->weaponmodelindex;
1916         stats[STAT_HEALTH] = (int)ent->fields.server->health;
1917         stats[STAT_AMMO] = (int)ent->fields.server->currentammo;
1918         stats[STAT_SHELLS] = (int)ent->fields.server->ammo_shells;
1919         stats[STAT_NAILS] = (int)ent->fields.server->ammo_nails;
1920         stats[STAT_ROCKETS] = (int)ent->fields.server->ammo_rockets;
1921         stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
1922         stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
1923         stats[STAT_VIEWZOOM] = viewzoom;
1924         stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
1925         stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
1926         // the QC bumps these itself by sending svc_'s, so we have to keep them
1927         // zero or they'll be corrected by the engine
1928         //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
1929         //stats[STAT_MONSTERS] = prog->globals.server->killed_monsters;
1930
1931         // movement settings for prediction
1932         // note: these are not sent in protocols with lower MAX_CL_STATS limits
1933         stats[STAT_MOVEFLAGS] = MOVEFLAG_VALID
1934                 | (sv_gameplayfix_q2airaccelerate.integer ? MOVEFLAG_Q2AIRACCELERATE : 0)
1935         ;
1936         statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
1937         statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
1938         statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
1939         statsf[STAT_MOVEVARS_STOPSPEED] = sv_stopspeed.value;
1940         statsf[STAT_MOVEVARS_MAXSPEED] = sv_maxspeed.value;
1941         statsf[STAT_MOVEVARS_SPECTATORMAXSPEED] = sv_maxspeed.value; // FIXME: QW has a separate cvar for this
1942         statsf[STAT_MOVEVARS_ACCELERATE] = sv_accelerate.value;
1943         statsf[STAT_MOVEVARS_AIRACCELERATE] = sv_airaccelerate.value >= 0 ? sv_airaccelerate.value : sv_accelerate.value;
1944         statsf[STAT_MOVEVARS_WATERACCELERATE] = sv_wateraccelerate.value >= 0 ? sv_wateraccelerate.value : sv_accelerate.value;
1945         val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.gravity);
1946         statsf[STAT_MOVEVARS_ENTGRAVITY] = (val && val->_float != 0) ? val->_float : 1.0f;
1947         statsf[STAT_MOVEVARS_JUMPVELOCITY] = sv_jumpvelocity.value;
1948         statsf[STAT_MOVEVARS_EDGEFRICTION] = sv_edgefriction.value;
1949         statsf[STAT_MOVEVARS_MAXAIRSPEED] = sv_maxairspeed.value;
1950         statsf[STAT_MOVEVARS_STEPHEIGHT] = sv_stepheight.value;
1951         statsf[STAT_MOVEVARS_AIRACCEL_QW] = sv_airaccel_qw.value;
1952         statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
1953         statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
1954         statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
1955         statsf[STAT_MOVEVARS_AIRSTOPACCELERATE] = sv_airstopaccelerate.value;
1956         statsf[STAT_MOVEVARS_AIRSTRAFEACCELERATE] = sv_airstrafeaccelerate.value;
1957         statsf[STAT_MOVEVARS_MAXAIRSTRAFESPEED] = sv_maxairstrafespeed.value;
1958         statsf[STAT_MOVEVARS_AIRCONTROL] = sv_aircontrol.value;
1959         statsf[STAT_MOVEVARS_WARSOWBUNNY_AIRFORWARDACCEL] = sv_warsowbunny_airforwardaccel.value;
1960         statsf[STAT_MOVEVARS_WARSOWBUNNY_ACCEL] = sv_warsowbunny_accel.value;
1961         statsf[STAT_MOVEVARS_WARSOWBUNNY_TOPSPEED] = sv_warsowbunny_topspeed.value;
1962         statsf[STAT_MOVEVARS_WARSOWBUNNY_TURNACCEL] = sv_warsowbunny_turnaccel.value;
1963         statsf[STAT_MOVEVARS_WARSOWBUNNY_BACKTOSIDERATIO] = sv_warsowbunny_backtosideratio.value;
1964         statsf[STAT_FRAGLIMIT] = fraglimit.value;
1965         statsf[STAT_TIMELIMIT] = timelimit.value;
1966
1967         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1968         {
1969                 if (stats[STAT_VIEWHEIGHT] != DEFAULT_VIEWHEIGHT) bits |= SU_VIEWHEIGHT;
1970                 bits |= SU_ITEMS;
1971                 if (stats[STAT_WEAPONFRAME]) bits |= SU_WEAPONFRAME;
1972                 if (stats[STAT_ARMOR]) bits |= SU_ARMOR;
1973                 bits |= SU_WEAPON;
1974                 // FIXME: which protocols support this?  does PROTOCOL_DARKPLACES3 support viewzoom?
1975                 if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5)
1976                         if (viewzoom != 255)
1977                                 bits |= SU_VIEWZOOM;
1978         }
1979
1980         if (bits >= 65536)
1981                 bits |= SU_EXTEND1;
1982         if (bits >= 16777216)
1983                 bits |= SU_EXTEND2;
1984
1985         // send the data
1986         MSG_WriteByte (msg, svc_clientdata);
1987         MSG_WriteShort (msg, bits);
1988         if (bits & SU_EXTEND1)
1989                 MSG_WriteByte(msg, bits >> 16);
1990         if (bits & SU_EXTEND2)
1991                 MSG_WriteByte(msg, bits >> 24);
1992
1993         if (bits & SU_VIEWHEIGHT)
1994                 MSG_WriteChar (msg, stats[STAT_VIEWHEIGHT]);
1995
1996         if (bits & SU_IDEALPITCH)
1997                 MSG_WriteChar (msg, (int)ent->fields.server->idealpitch);
1998
1999         for (i=0 ; i<3 ; i++)
2000         {
2001                 if (bits & (SU_PUNCH1<<i))
2002                 {
2003                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2004                                 MSG_WriteChar(msg, (int)ent->fields.server->punchangle[i]);
2005                         else
2006                                 MSG_WriteAngle16i(msg, ent->fields.server->punchangle[i]);
2007                 }
2008                 if (bits & (SU_PUNCHVEC1<<i))
2009                 {
2010                         if (sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2011                                 MSG_WriteCoord16i(msg, punchvector[i]);
2012                         else
2013                                 MSG_WriteCoord32f(msg, punchvector[i]);
2014                 }
2015                 if (bits & (SU_VELOCITY1<<i))
2016                 {
2017                         if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2018                                 MSG_WriteChar(msg, (int)(ent->fields.server->velocity[i] * (1.0f / 16.0f)));
2019                         else
2020                                 MSG_WriteCoord32f(msg, ent->fields.server->velocity[i]);
2021                 }
2022         }
2023
2024         if (bits & SU_ITEMS)
2025                 MSG_WriteLong (msg, stats[STAT_ITEMS]);
2026
2027         if (sv.protocol == PROTOCOL_DARKPLACES5)
2028         {
2029                 if (bits & SU_WEAPONFRAME)
2030                         MSG_WriteShort (msg, stats[STAT_WEAPONFRAME]);
2031                 if (bits & SU_ARMOR)
2032                         MSG_WriteShort (msg, stats[STAT_ARMOR]);
2033                 if (bits & SU_WEAPON)
2034                         MSG_WriteShort (msg, stats[STAT_WEAPON]);
2035                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
2036                 MSG_WriteShort (msg, stats[STAT_AMMO]);
2037                 MSG_WriteShort (msg, stats[STAT_SHELLS]);
2038                 MSG_WriteShort (msg, stats[STAT_NAILS]);
2039                 MSG_WriteShort (msg, stats[STAT_ROCKETS]);
2040                 MSG_WriteShort (msg, stats[STAT_CELLS]);
2041                 MSG_WriteShort (msg, stats[STAT_ACTIVEWEAPON]);
2042                 if (bits & SU_VIEWZOOM)
2043                         MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
2044         }
2045         else if (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2046         {
2047                 if (bits & SU_WEAPONFRAME)
2048                         MSG_WriteByte (msg, stats[STAT_WEAPONFRAME]);
2049                 if (bits & SU_ARMOR)
2050                         MSG_WriteByte (msg, stats[STAT_ARMOR]);
2051                 if (bits & SU_WEAPON)
2052                 {
2053                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2054                                 MSG_WriteShort (msg, stats[STAT_WEAPON]);
2055                         else
2056                                 MSG_WriteByte (msg, stats[STAT_WEAPON]);
2057                 }
2058                 MSG_WriteShort (msg, stats[STAT_HEALTH]);
2059                 MSG_WriteByte (msg, stats[STAT_AMMO]);
2060                 MSG_WriteByte (msg, stats[STAT_SHELLS]);
2061                 MSG_WriteByte (msg, stats[STAT_NAILS]);
2062                 MSG_WriteByte (msg, stats[STAT_ROCKETS]);
2063                 MSG_WriteByte (msg, stats[STAT_CELLS]);
2064                 if (gamemode == GAME_HIPNOTIC || gamemode == GAME_ROGUE || gamemode == GAME_NEXUIZ)
2065                 {
2066                         for (i = 0;i < 32;i++)
2067                                 if (stats[STAT_ACTIVEWEAPON] & (1<<i))
2068                                         break;
2069                         MSG_WriteByte (msg, i);
2070                 }
2071                 else
2072                         MSG_WriteByte (msg, stats[STAT_ACTIVEWEAPON]);
2073                 if (bits & SU_VIEWZOOM)
2074                 {
2075                         if (sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4)
2076                                 MSG_WriteByte (msg, bound(0, stats[STAT_VIEWZOOM], 255));
2077                         else
2078                                 MSG_WriteShort (msg, bound(0, stats[STAT_VIEWZOOM], 65535));
2079                 }
2080         }
2081 }
2082
2083 void SV_FlushBroadcastMessages(void)
2084 {
2085         int i;
2086         client_t *client;
2087         if (sv.datagram.cursize <= 0)
2088                 return;
2089         for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
2090         {
2091                 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])))
2092                         continue;
2093                 SZ_Write(&client->unreliablemsg, sv.datagram.data, sv.datagram.cursize);
2094                 client->unreliablemsg_splitpoint[client->unreliablemsg_splitpoints++] = client->unreliablemsg.cursize;
2095         }
2096         SZ_Clear(&sv.datagram);
2097 }
2098
2099 static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize, int maxsize2)
2100 {
2101         // scan the splitpoints to find out how many we can fit in
2102         int numsegments, j, split;
2103         if (!client->unreliablemsg_splitpoints)
2104                 return;
2105         // always accept the first one if it's within 1024 bytes, this ensures
2106         // that very big datagrams which are over the rate limit still get
2107         // through, just to keep it working
2108         for (numsegments = 1;numsegments < client->unreliablemsg_splitpoints;numsegments++)
2109                 if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
2110                         break;
2111         // the first segment gets an exemption from the rate limiting, otherwise
2112         // it could get dropped consistently due to a low rate limit
2113         if (numsegments == 1)
2114                 maxsize = maxsize2;
2115         // some will fit, so add the ones that will fit
2116         split = client->unreliablemsg_splitpoint[numsegments-1];
2117         // note this discards ones that were accepted by the segments scan but
2118         // can not fit, such as a really huge first one that will never ever
2119         // fit in a packet...
2120         if (msg->cursize + split <= maxsize)
2121                 SZ_Write(msg, client->unreliablemsg.data, split);
2122         // remove the part we sent, keeping any remaining data
2123         client->unreliablemsg.cursize -= split;
2124         if (client->unreliablemsg.cursize > 0)
2125                 memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
2126         // adjust remaining splitpoints
2127         client->unreliablemsg_splitpoints -= numsegments;
2128         for (j = 0;j < client->unreliablemsg_splitpoints;j++)
2129                 client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
2130 }
2131
2132 /*
2133 =======================
2134 SV_SendClientDatagram
2135 =======================
2136 */
2137 static void SV_SendClientDatagram (client_t *client)
2138 {
2139         int clientrate, maxrate, maxsize, maxsize2, downloadsize;
2140         sizebuf_t msg;
2141         int stats[MAX_CL_STATS];
2142         static unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
2143
2144         // obey rate limit by limiting packet frequency if the packet size
2145         // limiting fails
2146         // (usually this is caused by reliable messages)
2147         if (!NetConn_CanSend(client->netconnection))
2148                 return;
2149
2150         // PROTOCOL_DARKPLACES5 and later support packet size limiting of updates
2151         maxrate = max(NET_MINRATE, sv_maxrate.integer);
2152         if (sv_maxrate.integer != maxrate)
2153                 Cvar_SetValueQuick(&sv_maxrate, maxrate);
2154
2155         // clientrate determines the 'cleartime' of a packet
2156         // (how long to wait before sending another, based on this packet's size)
2157         clientrate = bound(NET_MINRATE, client->rate, maxrate);
2158
2159         switch (sv.protocol)
2160         {
2161         case PROTOCOL_QUAKE:
2162         case PROTOCOL_QUAKEDP:
2163         case PROTOCOL_NEHAHRAMOVIE:
2164         case PROTOCOL_NEHAHRABJP:
2165         case PROTOCOL_NEHAHRABJP2:
2166         case PROTOCOL_NEHAHRABJP3:
2167         case PROTOCOL_QUAKEWORLD:
2168                 // no packet size limit support on Quake protocols because it just
2169                 // causes missing entities/effects
2170                 // packets are simply sent less often to obey the rate limit
2171                 maxsize = 1024;
2172                 maxsize2 = 1024;
2173                 break;
2174         case PROTOCOL_DARKPLACES1:
2175         case PROTOCOL_DARKPLACES2:
2176         case PROTOCOL_DARKPLACES3:
2177         case PROTOCOL_DARKPLACES4:
2178                 // no packet size limit support on DP1-4 protocols because they kick
2179                 // the client off if they overflow, and miss effects
2180                 // packets are simply sent less often to obey the rate limit
2181                 maxsize = sizeof(sv_sendclientdatagram_buf);
2182                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
2183                 break;
2184         default:
2185                 // DP5 and later protocols support packet size limiting which is a
2186                 // better method than limiting packet frequency as QW does
2187                 //
2188                 // at very low rates (or very small sys_ticrate) the packet size is
2189                 // not reduced below 128, but packets may be sent less often
2190                 maxsize = (int)(clientrate * sys_ticrate.value);
2191                 maxsize = bound(128, maxsize, 1400);
2192                 maxsize2 = 1400;
2193                 // csqc entities can easily exceed 128 bytes, so disable throttling in
2194                 // mods that use csqc (they are likely to use less bandwidth anyway)
2195                 if (sv.csqc_progsize > 0)
2196                         maxsize = maxsize2;
2197                 break;
2198         }
2199
2200         if (LHNETADDRESS_GetAddressType(&host_client->netconnection->peeraddress) == LHNETADDRESSTYPE_LOOP && !sv_ratelimitlocalplayer.integer)
2201         {
2202                 // for good singleplayer, send huge packets
2203                 maxsize = sizeof(sv_sendclientdatagram_buf);
2204                 maxsize2 = sizeof(sv_sendclientdatagram_buf);
2205                 // never limit frequency in singleplayer
2206                 clientrate = 1000000000;
2207         }
2208
2209         // while downloading, limit entity updates to half the packet
2210         // (any leftover space will be used for downloading)
2211         if (host_client->download_file)
2212                 maxsize /= 2;
2213
2214         msg.data = sv_sendclientdatagram_buf;
2215         msg.maxsize = sizeof(sv_sendclientdatagram_buf);
2216         msg.cursize = 0;
2217         msg.allowoverflow = false;
2218
2219         if (host_client->spawned)
2220         {
2221                 // the player is in the game
2222                 MSG_WriteByte (&msg, svc_time);
2223                 MSG_WriteFloat (&msg, sv.time);
2224
2225                 // add the client specific data to the datagram
2226                 SV_WriteClientdataToMessage (client, client->edict, &msg, stats);
2227                 // now update the stats[] array using any registered custom fields
2228                 VM_SV_UpdateCustomStats (client, client->edict, &msg, stats);
2229                 // set host_client->statsdeltabits
2230                 Protocol_UpdateClientStats (stats);
2231
2232                 // add as many queued unreliable messages (effects) as we can fit
2233                 // limit effects to half of the remaining space
2234                 if (client->unreliablemsg.cursize)
2235                         SV_WriteUnreliableMessages (client, &msg, maxsize/2, maxsize2);
2236
2237                 // now write as many entities as we can fit, and also sends stats
2238                 SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
2239         }
2240         else if (realtime > client->keepalivetime)
2241         {
2242                 // the player isn't totally in the game yet
2243                 // send small keepalive messages if too much time has passed
2244                 // (may also be sending downloads)
2245                 client->keepalivetime = realtime + 5;
2246                 MSG_WriteChar (&msg, svc_nop);
2247         }
2248
2249         // if a download is active, see if there is room to fit some download data
2250         // in this packet
2251         downloadsize = min(maxsize*2,maxsize2) - msg.cursize - 7;
2252         if (host_client->download_file && host_client->download_started && downloadsize > 0)
2253         {
2254                 fs_offset_t downloadstart;
2255                 unsigned char data[1400];
2256                 downloadstart = FS_Tell(host_client->download_file);
2257                 downloadsize = min(downloadsize, (int)sizeof(data));
2258                 downloadsize = FS_Read(host_client->download_file, data, downloadsize);
2259                 // note this sends empty messages if at the end of the file, which is
2260                 // necessary to keep the packet loss logic working
2261                 // (the last blocks may be lost and need to be re-sent, and that will
2262                 //  only occur if the client acks the empty end messages, revealing
2263                 //  a gap in the download progress, causing the last blocks to be
2264                 //  sent again)
2265                 MSG_WriteChar (&msg, svc_downloaddata);
2266                 MSG_WriteLong (&msg, downloadstart);
2267                 MSG_WriteShort (&msg, downloadsize);
2268                 if (downloadsize > 0)
2269                         SZ_Write (&msg, data, downloadsize);
2270         }
2271
2272         // reliable only if none is in progress
2273         if(client->sendsignon != 2 && !client->netconnection->sendMessageLength)
2274                 SV_WriteDemoMessage(client, &(client->netconnection->message), false);
2275         // unreliable
2276         SV_WriteDemoMessage(client, &msg, false);
2277
2278 // send the datagram
2279         NetConn_SendUnreliableMessage (client->netconnection, &msg, sv.protocol, clientrate, client->sendsignon == 2);
2280         if (client->sendsignon == 1 && !client->netconnection->message.cursize)
2281                 client->sendsignon = 2; // prevent reliable until client sends prespawn (this is the keepalive phase)
2282 }
2283
2284 /*
2285 =======================
2286 SV_UpdateToReliableMessages
2287 =======================
2288 */
2289 static void SV_UpdateToReliableMessages (void)
2290 {
2291         int i, j;
2292         client_t *client;
2293         prvm_eval_t *val;
2294         const char *name;
2295         const char *model;
2296         const char *skin;
2297
2298 // check for changes to be sent over the reliable streams
2299         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2300         {
2301                 // update the host_client fields we care about according to the entity fields
2302                 host_client->edict = PRVM_EDICT_NUM(i+1);
2303
2304                 // DP_SV_CLIENTNAME
2305                 name = PRVM_GetString(host_client->edict->fields.server->netname);
2306                 if (name == NULL)
2307                         name = "";
2308                 // always point the string back at host_client->name to keep it safe
2309                 strlcpy (host_client->name, name, sizeof (host_client->name));
2310                 host_client->edict->fields.server->netname = PRVM_SetEngineString(host_client->name);
2311                 if (strcmp(host_client->old_name, host_client->name))
2312                 {
2313                         if (host_client->spawned)
2314                                 SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
2315                         strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
2316                         // send notification to all clients
2317                         MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
2318                         MSG_WriteByte (&sv.reliable_datagram, i);
2319                         MSG_WriteString (&sv.reliable_datagram, host_client->name);
2320                         SV_WriteNetnameIntoDemo(host_client);
2321                 }
2322
2323                 // DP_SV_CLIENTCOLORS
2324                 // this is always found (since it's added by the progs loader)
2325                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcolors)))
2326                         host_client->colors = (int)val->_float;
2327                 if (host_client->old_colors != host_client->colors)
2328                 {
2329                         host_client->old_colors = host_client->colors;
2330                         // send notification to all clients
2331                         MSG_WriteByte (&sv.reliable_datagram, svc_updatecolors);
2332                         MSG_WriteByte (&sv.reliable_datagram, i);
2333                         MSG_WriteByte (&sv.reliable_datagram, host_client->colors);
2334                 }
2335
2336                 // NEXUIZ_PLAYERMODEL
2337                 if( prog->fieldoffsets.playermodel >= 0 ) {
2338                         model = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string);
2339                         if (model == NULL)
2340                                 model = "";
2341                         // always point the string back at host_client->name to keep it safe
2342                         strlcpy (host_client->playermodel, model, sizeof (host_client->playermodel));
2343                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playermodel)->string = PRVM_SetEngineString(host_client->playermodel);
2344                 }
2345
2346                 // NEXUIZ_PLAYERSKIN
2347                 if( prog->fieldoffsets.playerskin >= 0 ) {
2348                         skin = PRVM_GetString(PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string);
2349                         if (skin == NULL)
2350                                 skin = "";
2351                         // always point the string back at host_client->name to keep it safe
2352                         strlcpy (host_client->playerskin, skin, sizeof (host_client->playerskin));
2353                         PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.playerskin)->string = PRVM_SetEngineString(host_client->playerskin);
2354                 }
2355
2356                 // TODO: add an extension name for this [1/17/2008 Black]
2357                 if ((val = PRVM_EDICTFIELDVALUE(host_client->edict, prog->fieldoffsets.clientcamera)) && val->edict > 0 ) {
2358                         int oldclientcamera = host_client->clientcamera;
2359                         if( val->edict >= prog->max_edicts || PRVM_EDICT_NUM( val->edict )->priv.required->free ) {
2360                                 val->edict = host_client->clientcamera = PRVM_NUM_FOR_EDICT( host_client->edict );
2361                         } else {
2362                                 host_client->clientcamera = val->edict;
2363                         }
2364
2365                         if( oldclientcamera != host_client->clientcamera ) {
2366                                 MSG_WriteByte (&sv.reliable_datagram, svc_setview );
2367                                 MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
2368                         }
2369                 }
2370
2371                 // frags
2372                 host_client->frags = (int)host_client->edict->fields.server->frags;
2373                 if(gamemode == GAME_NEXUIZ)
2374                         if(!host_client->spawned && host_client->netconnection)
2375                                 host_client->frags = -666;
2376                 if (host_client->old_frags != host_client->frags)
2377                 {
2378                         host_client->old_frags = host_client->frags;
2379                         // send notification to all clients
2380                         MSG_WriteByte (&sv.reliable_datagram, svc_updatefrags);
2381                         MSG_WriteByte (&sv.reliable_datagram, i);
2382                         MSG_WriteShort (&sv.reliable_datagram, host_client->frags);
2383                 }
2384         }
2385
2386         for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
2387                 if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
2388                         SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
2389
2390         SZ_Clear (&sv.reliable_datagram);
2391 }
2392
2393
2394 /*
2395 =======================
2396 SV_SendClientMessages
2397 =======================
2398 */
2399 void SV_SendClientMessages (void)
2400 {
2401         int i, prepared = false;
2402
2403         if (sv.protocol == PROTOCOL_QUAKEWORLD)
2404                 Sys_Error("SV_SendClientMessages: no quakeworld support\n");
2405
2406         SV_FlushBroadcastMessages();
2407
2408 // update frags, names, etc
2409         SV_UpdateToReliableMessages();
2410
2411 // build individual updates
2412         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
2413         {
2414                 if (!host_client->active)
2415                         continue;
2416                 if (!host_client->netconnection)
2417                         continue;
2418
2419                 if (host_client->netconnection->message.overflowed)
2420                 {
2421                         SV_DropClient (true);   // if the message couldn't send, kick off
2422                         continue;
2423                 }
2424
2425                 if (!prepared)
2426                 {
2427                         prepared = true;
2428                         // only prepare entities once per frame
2429                         SV_PrepareEntitiesForSending();
2430                 }
2431                 SV_SendClientDatagram (host_client);
2432         }
2433
2434 // clear muzzle flashes
2435         SV_CleanupEnts();
2436 }
2437
2438 static void SV_StartDownload_f(void)
2439 {
2440         if (host_client->download_file)
2441                 host_client->download_started = true;
2442 }
2443
2444 /*
2445  * Compression extension negotiation:
2446  *
2447  * Server to client:
2448  *   cl_serverextension_download 2
2449  *
2450  * Client to server:
2451  *   download <filename> <list of zero or more suppported compressions in order of preference>
2452  * e.g.
2453  *   download maps/map1.bsp lzo deflate huffman
2454  *
2455  * Server to client:
2456  *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
2457  * e.g.
2458  *   cl_downloadbegin 123456 maps/map1.bsp deflate
2459  *
2460  * The server may choose not to compress the file by sending no compression name, like:
2461  *   cl_downloadbegin 345678 maps/map1.bsp
2462  *
2463  * NOTE: the "download" command may only specify compression algorithms if
2464  *       cl_serverextension_download is 2!
2465  *       If cl_serverextension_download has a different value, the client must
2466  *       assume this extension is not supported!
2467  */
2468
2469 static void Download_CheckExtensions(void)
2470 {
2471         int i;
2472         int argc = Cmd_Argc();
2473
2474         // first reset them all
2475         host_client->download_deflate = false;
2476         
2477         for(i = 2; i < argc; ++i)
2478         {
2479                 if(!strcmp(Cmd_Argv(i), "deflate"))
2480                 {
2481                         host_client->download_deflate = true;
2482                         break;
2483                 }
2484         }
2485 }
2486
2487 static void SV_Download_f(void)
2488 {
2489         const char *whichpack, *whichpack2, *extension;
2490         qboolean is_csqc; // so we need to check only once
2491
2492         if (Cmd_Argc() < 2)
2493         {
2494                 SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
2495                 SV_ClientPrintf("       supported extensions: deflate\n");
2496                 return;
2497         }
2498
2499         if (FS_CheckNastyPath(Cmd_Argv(1), false))
2500         {
2501                 SV_ClientPrintf("Download rejected: nasty filename \"%s\"\n", Cmd_Argv(1));
2502                 return;
2503         }
2504
2505         if (host_client->download_file)
2506         {
2507                 // at this point we'll assume the previous download should be aborted
2508                 Con_DPrintf("Download of %s aborted by %s starting a new download\n", host_client->download_name, host_client->name);
2509                 Host_ClientCommands("\nstopdownload\n");
2510
2511                 // close the file and reset variables
2512                 FS_Close(host_client->download_file);
2513                 host_client->download_file = NULL;
2514                 host_client->download_name[0] = 0;
2515                 host_client->download_expectedposition = 0;
2516                 host_client->download_started = false;
2517         }
2518
2519         is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
2520         
2521         if (!sv_allowdownloads.integer && !is_csqc)
2522         {
2523                 SV_ClientPrintf("Downloads are disabled on this server\n");
2524                 Host_ClientCommands("\nstopdownload\n");
2525                 return;
2526         }
2527
2528         Download_CheckExtensions();
2529
2530         strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
2531         extension = FS_FileExtension(host_client->download_name);
2532
2533         // host_client is asking to download a specified file
2534         if (developer_extra.integer)
2535                 Con_DPrintf("Download request for %s by %s\n", host_client->download_name, host_client->name);
2536
2537         if(is_csqc)
2538         {
2539                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2540                 extensions[0] = '\0';
2541                 
2542                 if(host_client->download_deflate)
2543                         strlcat(extensions, " deflate", sizeof(extensions));
2544                 
2545                 Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2546
2547                 if(host_client->download_deflate && svs.csqc_progdata_deflated)
2548                         host_client->download_file = FS_FileFromData(svs.csqc_progdata_deflated, svs.csqc_progsize_deflated, true);
2549                 else
2550                         host_client->download_file = FS_FileFromData(svs.csqc_progdata, sv.csqc_progsize, true);
2551                 
2552                 // no, no space is needed between %s and %s :P
2553                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2554
2555                 host_client->download_expectedposition = 0;
2556                 host_client->download_started = false;
2557                 host_client->sendsignon = true; // make sure this message is sent
2558                 return;
2559         }
2560
2561         if (!FS_FileExists(host_client->download_name))
2562         {
2563                 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);
2564                 Host_ClientCommands("\nstopdownload\n");
2565                 return;
2566         }
2567
2568         // check if the user is trying to download part of registered Quake(r)
2569         whichpack = FS_WhichPack(host_client->download_name);
2570         whichpack2 = FS_WhichPack("gfx/pop.lmp");
2571         if ((whichpack && whichpack2 && !strcasecmp(whichpack, whichpack2)) || FS_IsRegisteredQuakePack(host_client->download_name))
2572         {
2573                 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);
2574                 Host_ClientCommands("\nstopdownload\n");
2575                 return;
2576         }
2577
2578         // check if the server has forbidden archive downloads entirely
2579         if (!sv_allowdownloads_inarchive.integer)
2580         {
2581                 whichpack = FS_WhichPack(host_client->download_name);
2582                 if (whichpack)
2583                 {
2584                         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);
2585                         Host_ClientCommands("\nstopdownload\n");
2586                         return;
2587                 }
2588         }
2589
2590         if (!sv_allowdownloads_config.integer)
2591         {
2592                 if (!strcasecmp(extension, "cfg"))
2593                 {
2594                         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);
2595                         Host_ClientCommands("\nstopdownload\n");
2596                         return;
2597                 }
2598         }
2599
2600         if (!sv_allowdownloads_dlcache.integer)
2601         {
2602                 if (!strncasecmp(host_client->download_name, "dlcache/", 8))
2603                 {
2604                         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);
2605                         Host_ClientCommands("\nstopdownload\n");
2606                         return;
2607                 }
2608         }
2609
2610         if (!sv_allowdownloads_archive.integer)
2611         {
2612                 if (!strcasecmp(extension, "pak") || !strcasecmp(extension, "pk3"))
2613                 {
2614                         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);
2615                         Host_ClientCommands("\nstopdownload\n");
2616                         return;
2617                 }
2618         }
2619
2620         host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
2621         if (!host_client->download_file)
2622         {
2623                 SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
2624                 Host_ClientCommands("\nstopdownload\n");
2625                 return;
2626         }
2627
2628         if (FS_FileSize(host_client->download_file) > 1<<30)
2629         {
2630                 SV_ClientPrintf("Download rejected: file \"%s\" is very large\n", host_client->download_name);
2631                 Host_ClientCommands("\nstopdownload\n");
2632                 FS_Close(host_client->download_file);
2633                 host_client->download_file = NULL;
2634                 return;
2635         }
2636
2637         if (FS_FileSize(host_client->download_file) < 0)
2638         {
2639                 SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
2640                 Host_ClientCommands("\nstopdownload\n");
2641                 FS_Close(host_client->download_file);
2642                 host_client->download_file = NULL;
2643                 return;
2644         }
2645
2646         Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
2647
2648         /*
2649          * we can only do this if we would actually deflate on the fly
2650          * which we do not (yet)!
2651         {
2652                 char extensions[MAX_QPATH]; // make sure this can hold all extensions
2653                 extensions[0] = '\0';
2654                 
2655                 if(host_client->download_deflate)
2656                         strlcat(extensions, " deflate", sizeof(extensions));
2657
2658                 // no, no space is needed between %s and %s :P
2659                 Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
2660         }
2661         */
2662         Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
2663
2664         host_client->download_expectedposition = 0;
2665         host_client->download_started = false;
2666         host_client->sendsignon = true; // make sure this message is sent
2667
2668         // the rest of the download process is handled in SV_SendClientDatagram
2669         // and other code dealing with svc_downloaddata and clc_ackdownloaddata
2670         //
2671         // no svc_downloaddata messages will be sent until sv_startdownload is
2672         // sent by the client
2673 }
2674
2675 /*
2676 ==============================================================================
2677
2678 SERVER SPAWNING
2679
2680 ==============================================================================
2681 */
2682
2683 /*
2684 ================
2685 SV_ModelIndex
2686
2687 ================
2688 */
2689 int SV_ModelIndex(const char *s, int precachemode)
2690 {
2691         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_MODELS);
2692         char filename[MAX_QPATH];
2693         if (!s || !*s)
2694                 return 0;
2695         // testing
2696         //if (precachemode == 2)
2697         //      return 0;
2698         strlcpy(filename, s, sizeof(filename));
2699         for (i = 2;i < limit;i++)
2700         {
2701                 if (!sv.model_precache[i][0])
2702                 {
2703                         if (precachemode)
2704                         {
2705                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2706                                 {
2707                                         Con_Printf("SV_ModelIndex(\"%s\"): precache_model can only be done in spawn functions\n", filename);
2708                                         return 0;
2709                                 }
2710                                 if (precachemode == 1)
2711                                         Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2712                                 strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
2713                                 sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, s[0] == '*' ? sv.modelname : NULL);
2714                                 if (sv.state != ss_loading)
2715                                 {
2716                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2717                                         MSG_WriteShort(&sv.reliable_datagram, i);
2718                                         MSG_WriteString(&sv.reliable_datagram, filename);
2719                                 }
2720                                 return i;
2721                         }
2722                         Con_Printf("SV_ModelIndex(\"%s\"): not precached\n", filename);
2723                         return 0;
2724                 }
2725                 if (!strcmp(sv.model_precache[i], filename))
2726                         return i;
2727         }
2728         Con_Printf("SV_ModelIndex(\"%s\"): i (%i) == MAX_MODELS (%i)\n", filename, i, MAX_MODELS);
2729         return 0;
2730 }
2731
2732 /*
2733 ================
2734 SV_SoundIndex
2735
2736 ================
2737 */
2738 int SV_SoundIndex(const char *s, int precachemode)
2739 {
2740         int i, limit = ((sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3) ? 256 : MAX_SOUNDS);
2741         char filename[MAX_QPATH];
2742         if (!s || !*s)
2743                 return 0;
2744         // testing
2745         //if (precachemode == 2)
2746         //      return 0;
2747         strlcpy(filename, s, sizeof(filename));
2748         for (i = 1;i < limit;i++)
2749         {
2750                 if (!sv.sound_precache[i][0])
2751                 {
2752                         if (precachemode)
2753                         {
2754                                 if (sv.state != ss_loading && (sv.protocol == PROTOCOL_QUAKE || sv.protocol == PROTOCOL_QUAKEDP || sv.protocol == PROTOCOL_NEHAHRAMOVIE || sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3 || sv.protocol == PROTOCOL_DARKPLACES1 || sv.protocol == PROTOCOL_DARKPLACES2 || sv.protocol == PROTOCOL_DARKPLACES3 || sv.protocol == PROTOCOL_DARKPLACES4 || sv.protocol == PROTOCOL_DARKPLACES5))
2755                                 {
2756                                         Con_Printf("SV_SoundIndex(\"%s\"): precache_sound can only be done in spawn functions\n", filename);
2757                                         return 0;
2758                                 }
2759                                 if (precachemode == 1)
2760                                         Con_Printf("SV_SoundIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
2761                                 strlcpy(sv.sound_precache[i], filename, sizeof(sv.sound_precache[i]));
2762                                 if (sv.state != ss_loading)
2763                                 {
2764                                         MSG_WriteByte(&sv.reliable_datagram, svc_precache);
2765                                         MSG_WriteShort(&sv.reliable_datagram, i + 32768);
2766                                         MSG_WriteString(&sv.reliable_datagram, filename);
2767                                 }
2768                                 return i;
2769                         }
2770                         Con_Printf("SV_SoundIndex(\"%s\"): not precached\n", filename);
2771                         return 0;
2772                 }
2773                 if (!strcmp(sv.sound_precache[i], filename))
2774                         return i;
2775         }
2776         Con_Printf("SV_SoundIndex(\"%s\"): i (%i) == MAX_SOUNDS (%i)\n", filename, i, MAX_SOUNDS);
2777         return 0;
2778 }
2779
2780 /*
2781 ================
2782 SV_ParticleEffectIndex
2783
2784 ================
2785 */
2786 int SV_ParticleEffectIndex(const char *name)
2787 {
2788         int i, argc, linenumber, effectnameindex;
2789         int filepass;
2790         fs_offset_t filesize;
2791         unsigned char *filedata;
2792         const char *text;
2793         const char *textstart;
2794         //const char *textend;
2795         char argv[16][1024];
2796         char filename[MAX_QPATH];
2797         if (!sv.particleeffectnamesloaded)
2798         {
2799                 sv.particleeffectnamesloaded = true;
2800                 memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
2801                 for (i = 0;i < EFFECT_TOTAL;i++)
2802                         strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
2803                 for (filepass = 0;;filepass++)
2804                 {
2805                         if (filepass == 0)
2806                                 dpsnprintf(filename, sizeof(filename), "effectinfo.txt");
2807                         else if (filepass == 1)
2808                                 dpsnprintf(filename, sizeof(filename), "maps/%s_effectinfo.txt", sv.name);
2809                         else
2810                                 break;
2811                         filedata = FS_LoadFile(filename, tempmempool, true, &filesize);
2812                         if (!filedata)
2813                                 continue;
2814                         textstart = (const char *)filedata;
2815                         //textend = (const char *)filedata + filesize;
2816                         text = textstart;
2817                         for (linenumber = 1;;linenumber++)
2818                         {
2819                                 argc = 0;
2820                                 for (;;)
2821                                 {
2822                                         if (!COM_ParseToken_Simple(&text, true, false) || !strcmp(com_token, "\n"))
2823                                                 break;
2824                                         if (argc < 16)
2825                                         {
2826                                                 strlcpy(argv[argc], com_token, sizeof(argv[argc]));
2827                                                 argc++;
2828                                         }
2829                                 }
2830                                 if (com_token[0] == 0)
2831                                         break; // if the loop exited and it's not a \n, it's EOF
2832                                 if (argc < 1)
2833                                         continue;
2834                                 if (!strcmp(argv[0], "effect"))
2835                                 {
2836                                         if (argc == 2)
2837                                         {
2838                                                 for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME;effectnameindex++)
2839                                                 {
2840                                                         if (sv.particleeffectname[effectnameindex][0])
2841                                                         {
2842                                                                 if (!strcmp(sv.particleeffectname[effectnameindex], argv[1]))
2843                                                                         break;
2844                                                         }
2845                                                         else
2846                                                         {
2847                                                                 strlcpy(sv.particleeffectname[effectnameindex], argv[1], sizeof(sv.particleeffectname[effectnameindex]));
2848                                                                 break;
2849                                                         }
2850                                                 }
2851                                                 // if we run out of names, abort
2852                                                 if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
2853                                                 {
2854                                                         Con_Printf("%s:%i: too many effects!\n", filename, linenumber);
2855                                                         break;
2856                                                 }
2857                                         }
2858                                 }
2859                         }
2860                         Mem_Free(filedata);
2861                 }
2862         }
2863         // search for the name
2864         for (effectnameindex = 1;effectnameindex < SV_MAX_PARTICLEEFFECTNAME && sv.particleeffectname[effectnameindex][0];effectnameindex++)
2865                 if (!strcmp(sv.particleeffectname[effectnameindex], name))
2866                         return effectnameindex;
2867         // return 0 if we couldn't find it
2868         return 0;
2869 }
2870
2871 dp_model_t *SV_GetModelByIndex(int modelindex)
2872 {
2873         return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
2874 }
2875
2876 dp_model_t *SV_GetModelFromEdict(prvm_edict_t *ed)
2877 {
2878         int modelindex;
2879         if (!ed || ed->priv.server->free)
2880                 return NULL;
2881         modelindex = (int)ed->fields.server->modelindex;
2882         return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
2883 }
2884
2885 /*
2886 ================
2887 SV_CreateBaseline
2888
2889 ================
2890 */
2891 static void SV_CreateBaseline (void)
2892 {
2893         int i, entnum, large;
2894         prvm_edict_t *svent;
2895
2896         // LordHavoc: clear *all* states (note just active ones)
2897         for (entnum = 0;entnum < prog->max_edicts;entnum++)
2898         {
2899                 // get the current server version
2900                 svent = PRVM_EDICT_NUM(entnum);
2901
2902                 // LordHavoc: always clear state values, whether the entity is in use or not
2903                 svent->priv.server->baseline = defaultstate;
2904
2905                 if (svent->priv.server->free)
2906                         continue;
2907                 if (entnum > svs.maxclients && !svent->fields.server->modelindex)
2908                         continue;
2909
2910                 // create entity baseline
2911                 VectorCopy (svent->fields.server->origin, svent->priv.server->baseline.origin);
2912                 VectorCopy (svent->fields.server->angles, svent->priv.server->baseline.angles);
2913                 svent->priv.server->baseline.frame = (int)svent->fields.server->frame;
2914                 svent->priv.server->baseline.skin = (int)svent->fields.server->skin;
2915                 if (entnum > 0 && entnum <= svs.maxclients)
2916                 {
2917                         svent->priv.server->baseline.colormap = entnum;
2918                         svent->priv.server->baseline.modelindex = SV_ModelIndex("progs/player.mdl", 1);
2919                 }
2920                 else
2921                 {
2922                         svent->priv.server->baseline.colormap = 0;
2923                         svent->priv.server->baseline.modelindex = (int)svent->fields.server->modelindex;
2924                 }
2925
2926                 large = false;
2927                 if (svent->priv.server->baseline.modelindex & 0xFF00 || svent->priv.server->baseline.frame & 0xFF00)
2928                 {
2929                         large = true;
2930                         if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2931                                 large = false;
2932                 }
2933
2934                 // add to the message
2935                 if (large)
2936                         MSG_WriteByte (&sv.signon, svc_spawnbaseline2);
2937                 else
2938                         MSG_WriteByte (&sv.signon, svc_spawnbaseline);
2939                 MSG_WriteShort (&sv.signon, entnum);
2940
2941                 if (large)
2942                 {
2943                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2944                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.frame);
2945                 }
2946                 else if (sv.protocol == PROTOCOL_NEHAHRABJP || sv.protocol == PROTOCOL_NEHAHRABJP2 || sv.protocol == PROTOCOL_NEHAHRABJP3)
2947                 {
2948                         MSG_WriteShort (&sv.signon, svent->priv.server->baseline.modelindex);
2949                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2950                 }
2951                 else
2952                 {
2953                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.modelindex);
2954                         MSG_WriteByte (&sv.signon, svent->priv.server->baseline.frame);
2955                 }
2956                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.colormap);
2957                 MSG_WriteByte (&sv.signon, svent->priv.server->baseline.skin);
2958                 for (i=0 ; i<3 ; i++)
2959                 {
2960                         MSG_WriteCoord(&sv.signon, svent->priv.server->baseline.origin[i], sv.protocol);
2961                         MSG_WriteAngle(&sv.signon, svent->priv.server->baseline.angles[i], sv.protocol);
2962                 }
2963         }
2964 }
2965
2966 /*
2967 ================
2968 SV_Prepare_CSQC
2969
2970 Load csprogs.dat and comperss it so it doesn't need to be
2971 reloaded on request.
2972 ================
2973 */
2974 void SV_Prepare_CSQC(void)
2975 {
2976         fs_offset_t progsize;
2977
2978         if(svs.csqc_progdata)
2979         {
2980                 Con_DPrintf("Unloading old CSQC data.\n");
2981                 Mem_Free(svs.csqc_progdata);
2982                 if(svs.csqc_progdata_deflated)
2983                         Mem_Free(svs.csqc_progdata_deflated);
2984         }
2985
2986         svs.csqc_progdata = NULL;
2987         svs.csqc_progdata_deflated = NULL;
2988         
2989         sv.csqc_progname[0] = 0;
2990         svs.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
2991
2992         if(progsize > 0)
2993         {
2994                 size_t deflated_size;
2995
2996                 sv.csqc_progsize = (int)progsize;
2997                 sv.csqc_progcrc = CRC_Block(svs.csqc_progdata, progsize);
2998                 strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
2999                 Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
3000
3001                 Con_DPrint("Compressing csprogs.dat\n");
3002                 //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
3003                 svs.csqc_progdata_deflated = FS_Deflate(svs.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
3004                 svs.csqc_progsize_deflated = (int)deflated_size;
3005                 if(svs.csqc_progdata_deflated)
3006                 {
3007                         Con_DPrintf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
3008                         Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)svs.csqc_progsize_deflated);
3009                 }
3010                 else
3011                         Con_DPrintf("Cannot compress - need zlib for this. Using uncompressed progs only.\n");
3012         }
3013 }
3014
3015 /*
3016 ================
3017 SV_SaveSpawnparms
3018
3019 Grabs the current state of each client for saving across the
3020 transition to another level
3021 ================
3022 */
3023 void SV_SaveSpawnparms (void)
3024 {
3025         int             i, j;
3026
3027         svs.serverflags = (int)prog->globals.server->serverflags;
3028
3029         for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
3030         {
3031                 if (!host_client->active)
3032                         continue;
3033
3034         // call the progs to get default spawn parms for the new client
3035                 prog->globals.server->self = PRVM_EDICT_TO_PROG(host_client->edict);
3036                 PRVM_ExecuteProgram (prog->globals.server->SetChangeParms, "QC function SetChangeParms is missing");
3037                 for (j=0 ; j<NUM_SPAWN_PARMS ; j++)
3038                         host_client->spawn_parms[j] = (&prog->globals.server->parm1)[j];
3039         }
3040 }
3041
3042 /*
3043 ================
3044 SV_SpawnServer
3045
3046 This is called at the start of each level
3047 ================
3048 */
3049
3050 void SV_SpawnServer (const char *server)
3051 {
3052         prvm_edict_t *ent;
3053         int i;
3054         char *entities;
3055         dp_model_t *worldmodel;
3056         char modelname[sizeof(sv.modelname)];
3057
3058         Con_DPrintf("SpawnServer: %s\n", server);
3059
3060         dpsnprintf (modelname, sizeof(modelname), "maps/%s.bsp", server);
3061
3062         if (!FS_FileExists(modelname))
3063         {
3064                 Con_Printf("SpawnServer: no map file named %s\n", modelname);
3065                 return;
3066         }
3067
3068         if (cls.state != ca_dedicated)
3069         {
3070                 SCR_BeginLoadingPlaque();
3071                 S_StopAllSounds();
3072         }
3073
3074         if(sv.active)
3075         {
3076                 SV_VM_Begin();
3077                 World_End(&sv.world);
3078                 if(prog->funcoffsets.SV_Shutdown)
3079                 {
3080                         func_t s = prog->funcoffsets.SV_Shutdown;
3081                         prog->funcoffsets.SV_Shutdown = 0; // prevent it from getting called again
3082                         PRVM_ExecuteProgram(s,"SV_Shutdown() required");
3083                 }
3084                 SV_VM_End();
3085         }
3086
3087         // free q3 shaders so that any newly downloaded shaders will be active
3088         Mod_FreeQ3Shaders();
3089
3090         worldmodel = Mod_ForName(modelname, false, developer.integer != 0, NULL);
3091         if (!worldmodel || !worldmodel->TraceBox)
3092         {
3093                 Con_Printf("Couldn't load map %s\n", modelname);
3094                 return;
3095         }
3096
3097         // let's not have any servers with no name
3098         if (hostname.string[0] == 0)
3099                 Cvar_Set ("hostname", "UNNAMED");
3100         scr_centertime_off = 0;
3101
3102         svs.changelevel_issued = false;         // now safe to issue another
3103
3104         // make the map a required file for clients
3105         Curl_ClearRequirements();
3106         Curl_RequireFile(modelname);
3107
3108 //
3109 // tell all connected clients that we are going to a new level
3110 //
3111         if (sv.active)
3112         {
3113                 client_t *client;
3114                 for (i = 0, client = svs.clients;i < svs.maxclients;i++, client++)
3115                 {
3116                         if (client->netconnection)
3117                         {
3118                                 MSG_WriteByte(&client->netconnection->message, svc_stufftext);
3119                                 MSG_WriteString(&client->netconnection->message, "reconnect\n");
3120                         }
3121      &n