]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - sv_main.c
sv_airstrafeaccel_qw cvar for tuning CPMA-style physics
[xonotic/darkplaces.git] / sv_main.c
index 0ac5ac5d2475c97efd9da69ce912bf78e7a0750a..ad9a3a1384c5bf7d15ff7fbf0c77c5ee31db9b7e 100644 (file)
--- a/sv_main.c
+++ b/sv_main.c
@@ -27,11 +27,16 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 static void SV_SaveEntFile_f(void);
 static void SV_StartDownload_f(void);
 static void SV_Download_f(void);
-static void SV_VM_Setup();
+static void SV_VM_Setup(void);
+extern cvar_t net_connecttimeout;
 
 void VM_CustomStats_Clear (void);
 void VM_SV_UpdateCustomStats (client_t *client, prvm_edict_t *ent, sizebuf_t *msg, int *stats);
-void EntityFrameCSQC_WriteFrame (sizebuf_t *msg, int maxsize, int numstates, const entity_state_t *states);
+
+cvar_t sv_worldmessage = {CVAR_READONLY, "sv_worldmessage", "", "title of current level"};
+cvar_t sv_worldname = {CVAR_READONLY, "sv_worldname", "", "name of current worldmodel"};
+cvar_t sv_worldnamenoextension = {CVAR_READONLY, "sv_worldnamenoextension", "", "name of current worldmodel without extension"};
+cvar_t sv_worldbasename = {CVAR_READONLY, "sv_worldbasename", "", "name of current worldmodel without maps/ prefix or extension"};
 
 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)"};
 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)"};
@@ -47,20 +52,26 @@ cvar_t slowmo = {0, "slowmo", "1.0", "controls game speed, 0.5 is half speed, 2
 
 cvar_t sv_accelerate = {0, "sv_accelerate", "10", "rate at which a player accelerates to sv_maxspeed"};
 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"};
-cvar_t sv_airaccel_qw = {0, "sv_airaccel_qw", "1", "ratio of QW-style air control as opposed to simple acceleration"};
-cvar_t sv_airaccel_sideways_friction = {0, "sv_airaccel_sideways_friction", "", "anti-sideways movement stabilization (reduces speed gain when zigzagging)"};
+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"};
+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"};
 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"};
+cvar_t sv_airstopaccelerate = {0, "sv_airstopaccelerate", "0", "when set, replacement for sv_airaccelerate when moving backwards"};
+cvar_t sv_airstrafeaccelerate = {0, "sv_airstrafeaccelerate", "0", "when set, replacement for sv_airaccelerate when just strafing"};
+cvar_t sv_maxairstrafespeed = {0, "sv_maxairstrafespeed", "0", "when set, replacement for sv_maxairspeed when just strafing"};
+cvar_t sv_airstrafeaccel_qw = {0, "sv_airstrafeaccel_qw", "0", "when set, replacement for sv_airaccel_qw when just strafing"};
+cvar_t sv_aircontrol = {0, "sv_aircontrol", "0", "CPMA-style air control"};
+cvar_t sv_aircontrol_power = {0, "sv_aircontrol_power", "2", "CPMA-style air control exponent"};
 cvar_t sv_allowdownloads = {0, "sv_allowdownloads", "1", "whether to allow clients to download files from the server (does not affect http downloads)"};
 cvar_t sv_allowdownloads_archive = {0, "sv_allowdownloads_archive", "0", "whether to allow downloads of archives (pak/pk3)"};
 cvar_t sv_allowdownloads_config = {0, "sv_allowdownloads_config", "0", "whether to allow downloads of config files (cfg)"};
 cvar_t sv_allowdownloads_dlcache = {0, "sv_allowdownloads_dlcache", "0", "whether to allow downloads of dlcache files (dlcache/)"};
 cvar_t sv_allowdownloads_inarchive = {0, "sv_allowdownloads_inarchive", "0", "whether to allow downloads from archives (pak/pk3)"};
-cvar_t sv_areagrid_mingridsize = {CVAR_NOTIFY, "sv_areagrid_mingridsize", "64", "minimum areagrid cell size, smaller values work better for lots of small objects, higher values for large objects"};
+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"};
 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"};
 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"};
 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)"};
 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)"};
-cvar_t sv_clmovement_waitforinput = {0, "sv_clmovement_waitforinput", "4", "when a client does not send input for this many frames, force them to move anyway (unlike QuakeWorld)"};
+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)"};
 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!)"};
 cvar_t sv_cullentities_pvs = {0, "sv_cullentities_pvs", "1", "fast but loose culling of hidden entities"};
 cvar_t sv_cullentities_stats = {0, "sv_cullentities_stats", "0", "displays stats on network entities culled by various methods for each client"};
@@ -69,30 +80,42 @@ cvar_t sv_cullentities_trace_delay = {0, "sv_cullentities_trace_delay", "1", "nu
 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"};
 cvar_t sv_cullentities_trace_enlarge = {0, "sv_cullentities_trace_enlarge", "0", "box enlargement for entity culling"};
 cvar_t sv_cullentities_trace_prediction = {0, "sv_cullentities_trace_prediction", "1", "also trace from the predicted player position"};
-cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "1", "number of samples to test for entity culling"};
+cvar_t sv_cullentities_trace_prediction_time = {0, "sv_cullentities_trace_prediction_time", "0.2", "how many seconds of prediction to use"};
+cvar_t sv_cullentities_trace_entityocclusion = {0, "sv_cullentities_trace_entityocclusion", "0", "also check if doors and other bsp models are in the way"};
+cvar_t sv_cullentities_trace_samples = {0, "sv_cullentities_trace_samples", "2", "number of samples to test for entity culling"};
 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"};
 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"};
 cvar_t sv_debugmove = {CVAR_NOTIFY, "sv_debugmove", "0", "disables collision detection optimizations for debugging purposes"};
 cvar_t sv_echobprint = {CVAR_SAVE, "sv_echobprint", "1", "prints gamecode bprint() calls to server console"};
-cvar_t sv_edgefriction = {0, "edgefriction", "2", "how much you slow down when nearing a ledge you might fall off"};
+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)"};
 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)"};
 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)"};
 cvar_t sv_freezenonclients = {CVAR_NOTIFY, "sv_freezenonclients", "0", "freezes time, except for players, allowing you to walk around and take screenshots of explosions"};
 cvar_t sv_friction = {CVAR_NOTIFY, "sv_friction","4", "how fast you slow down"};
 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"};
+cvar_t sv_gameplayfix_consistentplayerprethink = {0, "sv_gameplayfix_consistentplayerprethink", "0", "improves fairness in multiplayer by running all PlayerPreThink functions (which fire weapons) before performing physics, then runing all PlayerPostThink functions"};
 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"};
 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)"};
 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"};
 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)"};
 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"};
+cvar_t sv_gameplayfix_gravityunaffectedbyticrate = {0, "sv_gameplayfix_gravityunaffectedbyticrate", "0", "fix some ticrate issues in physics."};
 cvar_t sv_gameplayfix_grenadebouncedownslopes = {0, "sv_gameplayfix_grenadebouncedownslopes", "1", "prevents MOVETYPE_BOUNCE (grenades) from getting stuck when fired down a downward sloping surface"};
 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"};
-cvar_t sv_gameplayfix_noairborncorpse = {0, "sv_gameplayfix_noairborncorpse", "1", "causes entities (corpses) sitting ontop of moving entities (players) to fall when the moving entity (player) is no longer supporting them"};
+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"};
+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)"};
+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)"};
+cvar_t sv_gameplayfix_nudgeoutofsolid_bias = {0, "sv_gameplayfix_nudgeoutofsolid_bias", "0", "over-correction on nudgeoutofsolid logic, to prevent constant contact"};
+cvar_t sv_gameplayfix_q2airaccelerate = {0, "sv_gameplayfix_q2airaccelerate", "0", "Quake2-style air acceleration"};
+cvar_t sv_gameplayfix_nogravityonground = {0, "sv_gameplayfix_nogravityonground", "0", "Quake2-style air acceleration"};
 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"};
+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"};
 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)"};
 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)"};
+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"};
 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"};
 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"};
+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)"};
 cvar_t sv_gravity = {CVAR_NOTIFY, "sv_gravity","800", "how fast you fall (512 = roughly earth gravity)"};
 cvar_t sv_idealpitchscale = {0, "sv_idealpitchscale","0.8", "how much to look up/down slopes and stairs when not using freelook"};
 cvar_t sv_jumpstep = {CVAR_NOTIFY, "sv_jumpstep", "0", "whether you can step up while jumping (sv_gameplayfix_stepwhilejumping must also be 1)"};
@@ -101,7 +124,6 @@ cvar_t sv_maxairspeed = {0, "sv_maxairspeed", "30", "maximum speed a player can
 cvar_t sv_maxrate = {CVAR_SAVE | CVAR_NOTIFY, "sv_maxrate", "1000000", "upper limit on client rate cvar, should reflect your network connection quality"};
 cvar_t sv_maxspeed = {CVAR_NOTIFY, "sv_maxspeed", "320", "maximum speed a player can accelerate to when on ground (can be exceeded by tricks)"};
 cvar_t sv_maxvelocity = {CVAR_NOTIFY, "sv_maxvelocity","2000", "universal speed limit on all entities"};
-cvar_t sv_newflymove = {CVAR_NOTIFY, "sv_newflymove", "0", "enables simpler/buggier player physics (not recommended)"};
 cvar_t sv_nostep = {CVAR_NOTIFY, "sv_nostep","0", "prevents MOVETYPE_STEP entities (monsters) from moving"};
 cvar_t sv_playerphysicsqc = {CVAR_NOTIFY, "sv_playerphysicsqc", "1", "enables QuakeC function to override player physics"};
 cvar_t sv_progs = {0, "sv_progs", "progs.dat", "selects which quakec progs.dat file to run" };
@@ -115,6 +137,12 @@ cvar_t sv_stopspeed = {CVAR_NOTIFY, "sv_stopspeed","100", "how fast you come to
 cvar_t sv_wallfriction = {CVAR_NOTIFY, "sv_wallfriction", "1", "how much you slow down when sliding along a wall"};
 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"};
 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"};
+cvar_t sv_warsowbunny_airforwardaccel = {0, "sv_warsowbunny_airforwardaccel", "1.00001", "how fast you accelerate until you reach sv_maxspeed"};
+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)"};
+cvar_t sv_warsowbunny_topspeed = {0, "sv_warsowbunny_topspeed", "925", "soft speed limit (can get faster with rjs and on ramps)"};
+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)"};
+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"};
+cvar_t sv_onlycsqcnetworking = {0, "sv_onlycsqcnetworking", "0", "disables legacy entity networking code for higher performance (except on clients, which can still be legacy)"};
 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"};
 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"};
 cvar_t timelimit = {CVAR_NOTIFY, "timelimit","0", "ends level at this time (in minutes)"};
@@ -153,8 +181,10 @@ cvar_t nehx19 = {0, "nehx19", "0", "nehahra data storage cvar (used in singlepla
 cvar_t cutscene = {0, "cutscene", "1", "enables cutscenes in nehahra, can be used by other mods"};
 
 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)"};
-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" };
+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)" };
+cvar_t sv_autodemo_perclient_discardable = {CVAR_SAVE, "sv_autodemo_perclient_discardable", "0", "Allow game code to decide whether a demo should be kept or discarded."};
 
+cvar_t halflifebsp = {0, "halflifebsp", "0", "indicates the current map is hlbsp format (useful to know because of different bounding box sizes)"};
 
 server_t sv;
 server_static_t svs;
@@ -215,6 +245,7 @@ prvm_required_field_t reqfields[] =
        {ev_entity, "nodrawtoclient"},
        {ev_entity, "tag_entity"},
        {ev_entity, "viewmodelforclient"},
+       {ev_float, "SendFlags"},
        {ev_float, "Version"},
        {ev_float, "alpha"},
        {ev_float, "ammo_cells1"},
@@ -274,8 +305,24 @@ prvm_required_field_t reqfields[] =
        {ev_vector, "cursor_screen"},
        {ev_vector, "cursor_trace_endpos"},
        {ev_vector, "cursor_trace_start"},
+       {ev_vector, "glowmod"},
        {ev_vector, "movement"},
        {ev_vector, "punchvector"},
+
+       // physics
+       //{ev_float, "solid"},
+       //{ev_float, "movetype"},
+       //{ev_float, "modelindex"},
+       {ev_vector, "mass"},
+       //{ev_vector, "origin"},
+       //{ev_vector, "velocity"},
+       //{ev_vector, "axis_forward"},
+       //{ev_vector, "axis_left"},
+       //{ev_vector, "axis_up"},
+       //{ev_vector, "spinvelocity"},
+       //{ev_vector, "angles"},
+       //{ev_vector, "avelocity"},
+
 };
 
 
@@ -299,6 +346,12 @@ void SV_Init (void)
        extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
        extern cvar_t csqc_progcrc;
        extern cvar_t csqc_progsize;
+
+       Cvar_RegisterVariable(&sv_worldmessage);
+       Cvar_RegisterVariable(&sv_worldname);
+       Cvar_RegisterVariable(&sv_worldnamenoextension);
+       Cvar_RegisterVariable(&sv_worldbasename);
+
        Cvar_RegisterVariable (&csqc_progname);
        Cvar_RegisterVariable (&csqc_progcrc);
        Cvar_RegisterVariable (&csqc_progsize);
@@ -324,6 +377,12 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_airaccel_qw);
        Cvar_RegisterVariable (&sv_airaccel_sideways_friction);
        Cvar_RegisterVariable (&sv_airaccelerate);
+       Cvar_RegisterVariable (&sv_airstopaccelerate);
+       Cvar_RegisterVariable (&sv_airstrafeaccelerate);
+       Cvar_RegisterVariable (&sv_maxairstrafespeed);
+       Cvar_RegisterVariable (&sv_airstrafeaccel_qw);
+       Cvar_RegisterVariable (&sv_aircontrol);
+       Cvar_RegisterVariable (&sv_aircontrol_power);
        Cvar_RegisterVariable (&sv_allowdownloads);
        Cvar_RegisterVariable (&sv_allowdownloads_archive);
        Cvar_RegisterVariable (&sv_allowdownloads_config);
@@ -334,7 +393,7 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_clmovement_enable);
        Cvar_RegisterVariable (&sv_clmovement_minping);
        Cvar_RegisterVariable (&sv_clmovement_minping_disabletime);
-       Cvar_RegisterVariable (&sv_clmovement_waitforinput);
+       Cvar_RegisterVariable (&sv_clmovement_inputtimeout);
        Cvar_RegisterVariable (&sv_cullentities_nevercullbmodels);
        Cvar_RegisterVariable (&sv_cullentities_pvs);
        Cvar_RegisterVariable (&sv_cullentities_stats);
@@ -342,7 +401,9 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_cullentities_trace_delay);
        Cvar_RegisterVariable (&sv_cullentities_trace_delay_players);
        Cvar_RegisterVariable (&sv_cullentities_trace_enlarge);
+       Cvar_RegisterVariable (&sv_cullentities_trace_entityocclusion);
        Cvar_RegisterVariable (&sv_cullentities_trace_prediction);
+       Cvar_RegisterVariable (&sv_cullentities_trace_prediction_time);
        Cvar_RegisterVariable (&sv_cullentities_trace_samples);
        Cvar_RegisterVariable (&sv_cullentities_trace_samples_extra);
        Cvar_RegisterVariable (&sv_cullentities_trace_samples_players);
@@ -354,19 +415,29 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_freezenonclients);
        Cvar_RegisterVariable (&sv_friction);
        Cvar_RegisterVariable (&sv_gameplayfix_blowupfallenzombies);
+       Cvar_RegisterVariable (&sv_gameplayfix_consistentplayerprethink);
        Cvar_RegisterVariable (&sv_gameplayfix_delayprojectiles);
        Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid);
        Cvar_RegisterVariable (&sv_gameplayfix_droptofloorstartsolid_nudgetocorrect);
        Cvar_RegisterVariable (&sv_gameplayfix_easierwaterjump);
        Cvar_RegisterVariable (&sv_gameplayfix_findradiusdistancetobox);
+       Cvar_RegisterVariable (&sv_gameplayfix_gravityunaffectedbyticrate);
        Cvar_RegisterVariable (&sv_gameplayfix_grenadebouncedownslopes);
        Cvar_RegisterVariable (&sv_gameplayfix_multiplethinksperframe);
        Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse);
+       Cvar_RegisterVariable (&sv_gameplayfix_noairborncorpse_allowsuspendeditems);
+       Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid);
+       Cvar_RegisterVariable (&sv_gameplayfix_nudgeoutofsolid_bias);
+       Cvar_RegisterVariable (&sv_gameplayfix_q2airaccelerate);
+       Cvar_RegisterVariable (&sv_gameplayfix_nogravityonground);
        Cvar_RegisterVariable (&sv_gameplayfix_setmodelrealbox);
+       Cvar_RegisterVariable (&sv_gameplayfix_slidemoveprojectiles);
        Cvar_RegisterVariable (&sv_gameplayfix_stepdown);
        Cvar_RegisterVariable (&sv_gameplayfix_stepwhilejumping);
+       Cvar_RegisterVariable (&sv_gameplayfix_stepmultipletimes);
        Cvar_RegisterVariable (&sv_gameplayfix_swiminbmodels);
        Cvar_RegisterVariable (&sv_gameplayfix_upwardvelocityclearsongroundflag);
+       Cvar_RegisterVariable (&sv_gameplayfix_downtracesupportsongroundflag);
        Cvar_RegisterVariable (&sv_gravity);
        Cvar_RegisterVariable (&sv_idealpitchscale);
        Cvar_RegisterVariable (&sv_jumpstep);
@@ -375,7 +446,6 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_maxrate);
        Cvar_RegisterVariable (&sv_maxspeed);
        Cvar_RegisterVariable (&sv_maxvelocity);
-       Cvar_RegisterVariable (&sv_newflymove);
        Cvar_RegisterVariable (&sv_nostep);
        Cvar_RegisterVariable (&sv_playerphysicsqc);
        Cvar_RegisterVariable (&sv_progs);
@@ -389,6 +459,12 @@ void SV_Init (void)
        Cvar_RegisterVariable (&sv_wallfriction);
        Cvar_RegisterVariable (&sv_wateraccelerate);
        Cvar_RegisterVariable (&sv_waterfriction);
+       Cvar_RegisterVariable (&sv_warsowbunny_airforwardaccel);
+       Cvar_RegisterVariable (&sv_warsowbunny_accel);
+       Cvar_RegisterVariable (&sv_warsowbunny_topspeed);
+       Cvar_RegisterVariable (&sv_warsowbunny_turnaccel);
+       Cvar_RegisterVariable (&sv_warsowbunny_backtosideratio);
+       Cvar_RegisterVariable (&sv_onlycsqcnetworking);
        Cvar_RegisterVariable (&sys_ticrate);
        Cvar_RegisterVariable (&teamplay);
        Cvar_RegisterVariable (&timelimit);
@@ -432,34 +508,48 @@ void SV_Init (void)
 
        Cvar_RegisterVariable (&sv_autodemo_perclient);
        Cvar_RegisterVariable (&sv_autodemo_perclient_nameformat);
+       Cvar_RegisterVariable (&sv_autodemo_perclient_discardable);
+
+       Cvar_RegisterVariable (&halflifebsp);
 
        // any special defaults for gamemodes go here
+       if (gamemode == GAME_NEHAHRA)
+       {
+               // Nehahra pushable crates malfunction in some levels if this is on
+               Cvar_SetValueQuick (&sv_gameplayfix_upwardvelocityclearsongroundflag, 0);
+               // Nehahra NPC AI is confused by this feature
+               Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
+       }
        if (gamemode == GAME_HIPNOTIC)
        {
                // 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.
                Cvar_SetValueQuick (&sv_gameplayfix_blowupfallenzombies, 0);
                // 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
                Cvar_SetValueQuick (&sys_ticrate, 0.02);
+               // hipnotic mission pack has issues in their proximity mine sticking code, which causes them to bounce off.
+               Cvar_SetValueQuick (&sv_gameplayfix_slidemoveprojectiles, 0);
        }
        if (gamemode == GAME_ROGUE)
        {
                // rogue mission pack has a guardian boss that does not wake up if findradius returns one of the entities around its spawn area
                Cvar_SetValueQuick (&sv_gameplayfix_findradiusdistancetobox, 0);
        }
+       if (gamemode == GAME_NEXUIZ)
+       {
+               Cvar_SetValueQuick (&sv_gameplayfix_q2airaccelerate, 1);
+       }
 
        sv_mempool = Mem_AllocPool("server", 0, NULL);
 }
 
 static void SV_SaveEntFile_f(void)
 {
-       char basename[MAX_QPATH];
        if (!sv.active || !sv.worldmodel)
        {
                Con_Print("Not running a server\n");
                return;
        }
-       FS_StripExtension(sv.worldmodel->name, basename, sizeof(basename));
-       FS_WriteFile(va("%s.ent", basename), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
+       FS_WriteFile(va("%s.ent", sv.worldnamenoextension), sv.worldmodel->brush.entities, (fs_offset_t)strlen(sv.worldmodel->brush.entities));
 }
 
 
@@ -733,31 +823,38 @@ void SV_SendServerinfo (client_t *client)
        }
 
        // reset csqc entity versions
-       memset(client->csqcentityversion, 0, sizeof(client->csqcentityversion));
+       for (i = 0;i < prog->max_edicts;i++)
+       {
+               client->csqcentityscope[i] = 0;
+               client->csqcentitysendflags[i] = 0xFFFFFF;
+               client->csqcentityglobalhistory[i] = 0;
+       }
+       for (i = 0;i < NUM_CSQCENTITYDB_FRAMES;i++)
+       {
+               client->csqcentityframehistory[i].num = 0;
+               client->csqcentityframehistory[i].framenum = -1;
+       }
+       client->csqcnumedicts = 0;
+       client->csqcentityframehistory_next = 0;
 
        SZ_Clear (&client->netconnection->message);
        MSG_WriteByte (&client->netconnection->message, svc_print);
-       dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)", gamename, buildstring, prog->filecrc);
+       dpsnprintf (message, sizeof (message), "\nServer: %s build %s (progs %i crc)\n", gamename, buildstring, prog->filecrc);
        MSG_WriteString (&client->netconnection->message,message);
 
        SV_StopDemoRecording(client); // to split up demos into different files
        if(sv_autodemo_perclient.integer && client->netconnection)
        {
                char demofile[MAX_OSPATH];
-               char levelname[MAX_QPATH];
                char ipaddress[MAX_QPATH];
                size_t i;
 
                // start a new demo file
-               strlcpy(levelname, FS_FileWithoutPath(sv.worldmodel->name), sizeof(levelname));
-               if (strrchr(levelname, '.'))
-                       *(strrchr(levelname, '.')) = 0;
-
                LHNETADDRESS_ToString(&(client->netconnection->peeraddress), ipaddress, sizeof(ipaddress), true);
                for(i = 0; ipaddress[i]; ++i)
                        if(!isalnum(ipaddress[i]))
                                ipaddress[i] = '-';
-               dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), levelname, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
+               dpsnprintf (demofile, sizeof(demofile), "%s_%s_%d_%s.dem", Sys_TimeString (sv_autodemo_perclient_nameformat.string), sv.worldbasename, PRVM_NUM_FOR_EDICT(client->edict), ipaddress);
 
                SV_StartDemoRecording(client, demofile, -1);
        }
@@ -776,24 +873,15 @@ void SV_SendServerinfo (client_t *client)
 
                if(client->sv_demo_file != NULL)
                {
-                       void *csqcbuf;
-                       fs_offset_t csqclen;
-                       int csqccrc;
                        int i;
-                       char buf[NET_MAXMESSAGE];
+                       static char buf[NET_MAXMESSAGE];
                        sizebuf_t sb;
 
-                       csqcbuf = FS_LoadFile(sv.csqc_progname, tempmempool, true, &csqclen);
-                       if(csqcbuf)
-                       {
-                               csqccrc = CRC_Block(csqcbuf, csqclen);
-                               sb.data = (void *) buf;
-                               sb.maxsize = sizeof(buf);
-                               i = 0;
-                               while(MakeDownloadPacket(sv.csqc_progname, csqcbuf, csqclen, csqccrc, i++, &sb, sv.protocol))
-                                       SV_WriteDemoMessage(client, &sb, false);
-                               Mem_Free(csqcbuf);
-                       }
+                       sb.data = (unsigned char *) buf;
+                       sb.maxsize = sizeof(buf);
+                       i = 0;
+                       while(MakeDownloadPacket(sv.csqc_progname, svs.csqc_progdata, sv.csqc_progsize, sv.csqc_progcrc, i++, &sb, sv.protocol))
+                               SV_WriteDemoMessage(client, &sb, false);
                }
 
                //[515]: init stufftext string (it is sent before svc_serverinfo)
@@ -805,10 +893,12 @@ void SV_SendServerinfo (client_t *client)
                }
        }
 
-       if (sv_allowdownloads.integer)
+       //if (sv_allowdownloads.integer)
+       // always send the info that the server supports the protocol, even if downloads are forbidden
+       // only because of that, the CSQC exception can work
        {
                MSG_WriteByte (&client->netconnection->message, svc_stufftext);
-               MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 1\n");
+               MSG_WriteString (&client->netconnection->message, "cl_serverextension_download 2\n");
        }
 
        // send at this time so it's guaranteed to get executed at the right time
@@ -859,12 +949,17 @@ void SV_SendServerinfo (client_t *client)
        // clear movement info until client enters the new level properly
        memset(&client->cmd, 0, sizeof(client->cmd));
        client->movesequence = 0;
+       client->movement_highestsequence_seen = 0;
+       memset(&client->movement_count, 0, sizeof(client->movement_count));
 #ifdef NUM_PING_TIMES
        for (i = 0;i < NUM_PING_TIMES;i++)
                client->ping_times[i] = 0;
        client->num_pings = 0;
 #endif
        client->ping = 0;
+
+       // allow the client some time to send his keepalives, even if map loading took ages
+       client->netconnection->timeout = realtime + net_connecttimeout.value;
 }
 
 /*
@@ -954,12 +1049,21 @@ crosses a waterline.
 static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *cs, int enumber)
 {
        int i;
+       unsigned int sendflags;
+       unsigned int version;
        unsigned int modelindex, effects, flags, glowsize, lightstyle, lightpflags, light[4], specialvisibilityradius;
        unsigned int customizeentityforclient;
+       unsigned int sendentity;
        float f;
        vec3_t cullmins, cullmaxs;
        dp_model_t *model;
-       prvm_eval_t *val;
+       prvm_eval_t *val, *val2;
+
+       // fast path for games that do not use legacy entity networking
+       // note: still networks clients even if they are legacy
+       sendentity = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendEntity)->function;
+       if (sv_onlycsqcnetworking.integer && !sendentity && enumber > svs.maxclients)
+               return false;
 
        // this 2 billion unit check is actually to detect NAN origins
        // (we really don't want to send those)
@@ -974,7 +1078,7 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
        // LordHavoc: this could kill tags attached to an invisible entity, I
        // just hope we never have to support that case
        i = (int)ent->fields.server->modelindex;
-       modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model)) ? i : 0;
+       modelindex = (i >= 1 && i < MAX_MODELS && ent->fields.server->model && *PRVM_GetString(ent->fields.server->model) && sv.models[i]) ? i : 0;
 
        flags = 0;
        i = (int)(PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glow_size)->_float * 0.25f);
@@ -1049,7 +1153,7 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
                return false;
 
        *cs = defaultstate;
-       cs->active = true;
+       cs->active = ACTIVE_NETWORK;
        cs->number = enumber;
        VectorCopy(ent->fields.server->origin, cs->origin);
        VectorCopy(ent->fields.server->angles, cs->angles);
@@ -1078,6 +1182,16 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
                i = (int)(val->vector[2] * 32.0f);cs->colormod[2] = bound(0, i, 255);
        }
 
+       // don't need to init cs->glowmod because the defaultstate did that for us
+       //cs->glowmod[0] = cs->glowmod[1] = cs->glowmod[2] = 32;
+       val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.glowmod);
+       if (val->vector[0] || val->vector[1] || val->vector[2])
+       {
+               i = (int)(val->vector[0] * 32.0f);cs->glowmod[0] = bound(0, i, 255);
+               i = (int)(val->vector[1] * 32.0f);cs->glowmod[1] = bound(0, i, 255);
+               i = (int)(val->vector[2] * 32.0f);cs->glowmod[2] = bound(0, i, 255);
+       }
+
        cs->modelindex = modelindex;
 
        cs->alpha = 255;
@@ -1136,7 +1250,7 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
        // calculate the visible box of this entity (don't use the physics box
        // as that is often smaller than a model, and would not count
        // specialvisibilityradius)
-       if ((model = sv.models[modelindex]))
+       if ((model = SV_GetModelByIndex(modelindex)) && (model->type != mod_null))
        {
                float scale = cs->scale * (1.0f / 16.0f);
                if (cs->angles[0] || cs->angles[2]) // pitch and roll
@@ -1144,7 +1258,7 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
                        VectorMA(cs->origin, scale, model->rotatedmins, cullmins);
                        VectorMA(cs->origin, scale, model->rotatedmaxs, cullmaxs);
                }
-               else if (cs->angles[1])
+               else if (cs->angles[1] || ((effects | model->effects) & EF_ROTATE))
                {
                        VectorMA(cs->origin, scale, model->yawmins, cullmins);
                        VectorMA(cs->origin, scale, model->yawmaxs, cullmaxs);
@@ -1192,6 +1306,31 @@ static qboolean SV_PrepareEntityForSending (prvm_edict_t *ent, entity_state_t *c
                }
        }
 
+       // we need to do some csqc entity upkeep here
+       // get self.SendFlags and clear them
+       // (to let the QC know that they've been read)
+       if (sendentity)
+       {
+               val = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.SendFlags);
+               sendflags = (unsigned int)val->_float;
+               val->_float = 0;
+               // legacy self.Version system
+               val2 = PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.Version);
+               if (val2->_float)
+               {
+                       version = (unsigned int)val2->_float;
+                       if (sv.csqcentityversion[enumber] != version)
+                               sendflags = 0xFFFFFF;
+                       sv.csqcentityversion[enumber] = version;
+               }
+               // move sendflags into the per-client sendflags
+               if (sendflags)
+                       for (i = 0;i < svs.maxclients;i++)
+                               svs.clients[i].csqcentitysendflags[enumber] |= sendflags;
+               // mark it as inactive for non-csqc networking
+               cs->active = ACTIVE_SHARED;
+       }
+
        return true;
 }
 
@@ -1213,6 +1352,123 @@ void SV_PrepareEntitiesForSending(void)
        }
 }
 
+#define MAX_LINEOFSIGHTTRACES 64
+
+qboolean SV_CanSeeBox(int numtraces, vec_t enlarge, vec3_t eye, vec3_t entboxmins, vec3_t entboxmaxs)
+{
+       float pitchsign;
+       float alpha;
+       float starttransformed[3], endtransformed[3];
+       int blocked = 0;
+       int traceindex;
+       int originalnumtouchedicts;
+       int numtouchedicts = 0;
+       int touchindex;
+       matrix4x4_t matrix, imatrix;
+       dp_model_t *model;
+       prvm_edict_t *touch;
+       static prvm_edict_t *touchedicts[MAX_EDICTS];
+       vec3_t boxmins, boxmaxs;
+       vec3_t clipboxmins, clipboxmaxs;
+       vec3_t endpoints[MAX_LINEOFSIGHTTRACES];
+
+       numtraces = min(numtraces, MAX_LINEOFSIGHTTRACES);
+
+       // expand the box a little
+       boxmins[0] = (enlarge+1) * entboxmins[0] - enlarge * entboxmaxs[0];
+       boxmaxs[0] = (enlarge+1) * entboxmaxs[0] - enlarge * entboxmins[0];
+       boxmins[1] = (enlarge+1) * entboxmins[1] - enlarge * entboxmaxs[1];
+       boxmaxs[1] = (enlarge+1) * entboxmaxs[1] - enlarge * entboxmins[1];
+       boxmins[2] = (enlarge+1) * entboxmins[2] - enlarge * entboxmaxs[2];
+       boxmaxs[2] = (enlarge+1) * entboxmaxs[2] - enlarge * entboxmins[2];
+
+       VectorMAM(0.5f, boxmins, 0.5f, boxmaxs, endpoints[0]);
+       for (traceindex = 1;traceindex < numtraces;traceindex++)
+               VectorSet(endpoints[traceindex], lhrandom(boxmins[0], boxmaxs[0]), lhrandom(boxmins[1], boxmaxs[1]), lhrandom(boxmins[2], boxmaxs[2]));
+
+       // calculate sweep box for the entire swarm of traces
+       VectorCopy(eye, clipboxmins);
+       VectorCopy(eye, clipboxmaxs);
+       for (traceindex = 0;traceindex < numtraces;traceindex++)
+       {
+               clipboxmins[0] = min(clipboxmins[0], endpoints[traceindex][0]);
+               clipboxmins[1] = min(clipboxmins[1], endpoints[traceindex][1]);
+               clipboxmins[2] = min(clipboxmins[2], endpoints[traceindex][2]);
+               clipboxmaxs[0] = max(clipboxmaxs[0], endpoints[traceindex][0]);
+               clipboxmaxs[1] = max(clipboxmaxs[1], endpoints[traceindex][1]);
+               clipboxmaxs[2] = max(clipboxmaxs[2], endpoints[traceindex][2]);
+       }
+
+       // get the list of entities in the sweep box
+       if (sv_cullentities_trace_entityocclusion.integer)
+               numtouchedicts = World_EntitiesInBox(&sv.world, clipboxmins, clipboxmaxs, MAX_EDICTS, touchedicts);
+       if (numtouchedicts > MAX_EDICTS)
+       {
+               // this never happens
+               Con_Printf("SV_EntitiesInBox returned %i edicts, max was %i\n", numtouchedicts, MAX_EDICTS);
+               numtouchedicts = MAX_EDICTS;
+       }
+       // iterate the entities found in the sweep box and filter them
+       originalnumtouchedicts = numtouchedicts;
+       numtouchedicts = 0;
+       for (touchindex = 0;touchindex < originalnumtouchedicts;touchindex++)
+       {
+               touch = touchedicts[touchindex];
+               if (touch->fields.server->solid != SOLID_BSP)
+                       continue;
+               model = SV_GetModelFromEdict(touch);
+               if (!model || !model->brush.TraceLineOfSight)
+                       continue;
+               // skip obviously transparent entities
+               alpha = PRVM_EDICTFIELDVALUE(touch, prog->fieldoffsets.alpha)->_float;
+               if (alpha && alpha < 1)
+                       continue;
+               if ((int)touch->fields.server->effects & EF_ADDITIVE)
+                       continue;
+               touchedicts[numtouchedicts++] = touch;
+       }
+
+       // now that we have a filtered list of "interesting" entities, fire each
+       // ray against all of them, this gives us an early-out case when something
+       // is visible (which it often is)
+
+       for (traceindex = 0;traceindex < numtraces;traceindex++)
+       {
+               // check world occlusion
+               if (sv.worldmodel && sv.worldmodel->brush.TraceLineOfSight)
+                       if (!sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, eye, endpoints[traceindex]))
+                               continue;
+               for (touchindex = 0;touchindex < numtouchedicts;touchindex++)
+               {
+                       touch = touchedicts[touchindex];
+                       model = SV_GetModelFromEdict(touch);
+                       if(model && model->brush.TraceLineOfSight)
+                       {
+                               // get the entity matrix
+                               pitchsign = SV_GetPitchSign(touch);
+                               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);
+                               Matrix4x4_Invert_Simple(&imatrix, &matrix);
+                               // see if the ray hits this entity
+                               Matrix4x4_Transform(&imatrix, eye, starttransformed);
+                               Matrix4x4_Transform(&imatrix, endpoints[traceindex], endtransformed);
+                               if (!model->brush.TraceLineOfSight(model, starttransformed, endtransformed))
+                               {
+                                       blocked++;
+                                       break;
+                               }
+                       }
+               }
+               // check if the ray was blocked
+               if (touchindex < numtouchedicts)
+                       continue;
+               // return if the ray was not blocked
+               return true;
+       }
+
+       // no rays survived
+       return false;
+}
+
 void SV_MarkWriteEntityStateToClient(entity_state_t *s)
 {
        int isbmodel;
@@ -1246,7 +1502,7 @@ void SV_MarkWriteEntityStateToClient(entity_state_t *s)
                if (!s->modelindex && s->specialvisibilityradius == 0)
                        return;
 
-               isbmodel = (model = sv.models[s->modelindex]) != NULL && model->name[0] == '*';
+               isbmodel = (model = SV_GetModelByIndex(s->modelindex)) != NULL && model->name[0] == '*';
                // viewmodels don't have visibility checking
                if (s->viewmodelforclient)
                {
@@ -1271,7 +1527,7 @@ void SV_MarkWriteEntityStateToClient(entity_state_t *s)
                        ed = PRVM_EDICT_NUM(s->number);
 
                        // if not touching a visible leaf
-                       if (sv_cullentities_pvs.integer && sv.writeentitiestoclient_pvsbytes)
+                       if (sv_cullentities_pvs.integer && !r_novis.integer && sv.writeentitiestoclient_pvsbytes)
                        {
                                if (ed->priv.server->pvs_numclusters < 0)
                                {
@@ -1309,42 +1565,13 @@ void SV_MarkWriteEntityStateToClient(entity_state_t *s)
                                                : sv_cullentities_trace_samples.integer;
                                float enlarge = sv_cullentities_trace_enlarge.value;
 
-                               qboolean visible = TRUE;
-
                                if(samples > 0)
                                {
-                                       do
-                                       {
-                                               if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, sv.writeentitiestoclient_testeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
-                                                       break; // directly visible from the server's view
-
-                                               if(sv_cullentities_trace_prediction.integer)
-                                               {
-                                                       vec3_t predeye;
-
-                                                       // get player velocity
-                                                       float predtime = bound(0, host_client->ping, 0.2); // / 2
-                                                               // sorry, no wallhacking by high ping please, and at 200ms
-                                                               // ping a FPS is annoying to play anyway and a player is
-                                                               // likely to have changed his direction
-                                                       VectorMA(sv.writeentitiestoclient_testeye, predtime, host_client->edict->fields.server->velocity, predeye);
-                                                       if(sv.worldmodel->brush.TraceLineOfSight(sv.worldmodel, sv.writeentitiestoclient_testeye, predeye)) // must be able to go there...
-                                                       {
-                                                               if(Mod_CanSeeBox_Trace(samples, enlarge, sv.worldmodel, predeye, ed->priv.server->cullmins, ed->priv.server->cullmaxs))
-                                                                       break; // directly visible from the predicted view
-                                                       }
-                                                       else
-                                                       {
-                                                               //Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
-                                                       }
-                                               }
-
-                                               // when we get here, we can't see the entity
-                                               visible = false;
-                                       }
-                                       while(0);
-
-                                       if(visible)
+                                       int eyeindex;
+                                       for (eyeindex = 0;eyeindex < sv.writeentitiestoclient_numeyes;eyeindex++)
+                                               if(SV_CanSeeBox(samples, enlarge, sv.writeentitiestoclient_eyes[eyeindex], ed->priv.server->cullmins, ed->priv.server->cullmaxs))
+                                                       break;
+                                       if(eyeindex < sv.writeentitiestoclient_numeyes)
                                                svs.clients[sv.writeentitiestoclient_clientnumber].visibletime[s->number] =
                                                        realtime + (
                                                                s->number <= svs.maxclients
@@ -1368,11 +1595,93 @@ void SV_MarkWriteEntityStateToClient(entity_state_t *s)
        sv.sententities[s->number] = sv.sententitiesmark;
 }
 
+#if MAX_LEVELNETWORKEYES > 0
+#define MAX_EYE_RECURSION 1 // increase if recursion gets supported by portals
+void SV_AddCameraEyes(void)
+{
+       int e, i, j, k;
+       prvm_edict_t *ed;
+       int cameras[MAX_LEVELNETWORKEYES];
+       vec3_t camera_origins[MAX_LEVELNETWORKEYES];
+       int eye_levels[MAX_CLIENTNETWORKEYES];
+       int n_cameras = 0;
+       vec3_t mi, ma;
+       prvm_eval_t *valendpos, *val;
+
+       if(!prog->fieldoffsets.camera_transform)
+               return;
+       valendpos = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_endpos);
+       if(!valendpos)
+               return;
+
+       for(i = 0; i < sv.writeentitiestoclient_numeyes; ++i)
+               eye_levels[i] = 0;
+
+       // check line of sight to portal entities and add them to PVS
+       for (e = 1, ed = PRVM_NEXT_EDICT(prog->edicts);e < prog->num_edicts;e++, ed = PRVM_NEXT_EDICT(ed))
+       {
+               if (!ed->priv.server->free)
+               {
+                       if((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.camera_transform)) && val->function)
+                       {
+                               prog->globals.server->self = e;
+                               prog->globals.server->other = sv.writeentitiestoclient_cliententitynumber;
+                               VectorCopy(sv.writeentitiestoclient_eyes[0], valendpos->vector);
+                               VectorCopy(sv.writeentitiestoclient_eyes[0], PRVM_G_VECTOR(OFS_PARM0));
+                               VectorClear(PRVM_G_VECTOR(OFS_PARM1));
+                               PRVM_ExecuteProgram(val->function, "QC function e.camera_transform is missing");
+                               if(!VectorCompare(valendpos->vector, sv.writeentitiestoclient_eyes[0]))
+                                       VectorCopy(valendpos->vector, camera_origins[n_cameras]);
+                               cameras[n_cameras] = e;
+                               ++n_cameras;
+                               if(n_cameras >= MAX_LEVELNETWORKEYES)
+                                       break;
+                       }
+               }
+       }
+
+       if(!n_cameras)
+               return;
+
+       // i is loop counter, is reset to 0 when an eye got added
+       // j is camera index to check
+       for(i = 0, j = 0; sv.writeentitiestoclient_numeyes < MAX_CLIENTNETWORKEYES && i < n_cameras; ++i, ++j, j %= n_cameras)
+       {
+               if(!cameras[j])
+                       continue;
+               ed = PRVM_EDICT_NUM(cameras[j]);
+               VectorAdd(ed->fields.server->origin, ed->fields.server->mins, mi);
+               VectorAdd(ed->fields.server->origin, ed->fields.server->maxs, ma);
+               for(k = 0; k < sv.writeentitiestoclient_numeyes; ++k)
+               if(eye_levels[k] <= MAX_EYE_RECURSION)
+               {
+                       if(SV_CanSeeBox(sv_cullentities_trace_samples.integer, sv_cullentities_trace_enlarge.value, sv.writeentitiestoclient_eyes[k], mi, ma))
+                       {
+                               eye_levels[sv.writeentitiestoclient_numeyes] = eye_levels[k] + 1;
+                               VectorCopy(camera_origins[j], sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
+                               // 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);
+                               sv.writeentitiestoclient_numeyes++;
+                               cameras[j] = 0;
+                               i = 0;
+                               break;
+                       }
+               }
+       }
+}
+#else
+void SV_AddCameraEyes(void)
+{
+}
+#endif
+
 void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *msg, int maxsize)
 {
-       int i, numsendstates;
+       qboolean need_empty = false;
+       int i, numsendstates, numcsqcsendstates;
        entity_state_t *s;
        prvm_edict_t *camera;
+       qboolean success;
+       vec3_t eye;
 
        // if there isn't enough space to accomplish anything, skip it
        if (msg->cursize + 25 > maxsize)
@@ -1385,16 +1694,42 @@ void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *
        sv.writeentitiestoclient_stats_culled_trace = 0;
        sv.writeentitiestoclient_stats_visibleentities = 0;
        sv.writeentitiestoclient_stats_totalentities = 0;
+       sv.writeentitiestoclient_numeyes = 0;
 
-// find the client's PVS
-       // the real place being tested from
+       // get eye location
+       sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
        camera = PRVM_EDICT_NUM( client->clientcamera );
-       VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, sv.writeentitiestoclient_testeye);
+       VectorAdd(camera->fields.server->origin, clent->fields.server->view_ofs, eye);
        sv.writeentitiestoclient_pvsbytes = 0;
+       // get the PVS values for the eye location, later FatPVS calls will merge
        if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
-               sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, sv.writeentitiestoclient_testeye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), false);
+               sv.writeentitiestoclient_pvsbytes = sv.worldmodel->brush.FatPVS(sv.worldmodel, eye, 8, sv.writeentitiestoclient_pvs, sizeof(sv.writeentitiestoclient_pvs), sv.writeentitiestoclient_pvsbytes != 0);
 
-       sv.writeentitiestoclient_cliententitynumber = PRVM_EDICT_TO_PROG(clent); // LordHavoc: for comparison purposes
+       // add the eye to a list for SV_CanSeeBox tests
+       VectorCopy(eye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
+       sv.writeentitiestoclient_numeyes++;
+
+       // calculate predicted eye origin for SV_CanSeeBox tests
+       if (sv_cullentities_trace_prediction.integer)
+       {
+               vec_t predtime = bound(0, host_client->ping, sv_cullentities_trace_prediction_time.value);
+               vec3_t predeye;
+               VectorMA(eye, predtime, camera->fields.server->velocity, predeye);
+               if (SV_CanSeeBox(1, 0, eye, predeye, predeye))
+               {
+                       VectorCopy(predeye, sv.writeentitiestoclient_eyes[sv.writeentitiestoclient_numeyes]);
+                       sv.writeentitiestoclient_numeyes++;
+               }
+               //if (!sv.writeentitiestoclient_useprediction)
+               //      Con_DPrintf("Trying to walk into solid in a pingtime... not predicting for culling\n");
+       }
+
+       SV_AddCameraEyes();
+
+       // build PVS from the new eyes
+       if (sv.worldmodel && sv.worldmodel->brush.FatPVS)
+               for(i = 1; i < sv.writeentitiestoclient_numeyes; ++i)
+                       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);
 
        sv.sententitiesmark++;
 
@@ -1402,39 +1737,63 @@ void SV_WriteEntitiesToClient(client_t *client, prvm_edict_t *clent, sizebuf_t *
                SV_MarkWriteEntityStateToClient(sv.sendentities + i);
 
        numsendstates = 0;
+       numcsqcsendstates = 0;
        for (i = 0;i < sv.numsendentities;i++)
        {
-               if (sv.sententities[sv.sendentities[i].number] == sv.sententitiesmark)
+               s = &sv.sendentities[i];
+               if (sv.sententities[s->number] == sv.sententitiesmark)
                {
-                       s = &sv.writeentitiestoclient_sendstates[numsendstates++];
-                       *s = sv.sendentities[i];
-                       if (s->exteriormodelforclient && s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
-                               s->flags |= RENDER_EXTERIORMODEL;
+                       if(s->active == ACTIVE_NETWORK)
+                       {
+                               if (s->exteriormodelforclient)
+                               {
+                                       if (s->exteriormodelforclient == sv.writeentitiestoclient_cliententitynumber)
+                                               s->flags |= RENDER_EXTERIORMODEL;
+                                       else
+                                               s->flags &= ~RENDER_EXTERIORMODEL;
+                               }
+                               sv.writeentitiestoclient_sendstates[numsendstates++] = s;
+                       }
+                       else if(sv.sendentities[i].active == ACTIVE_SHARED)
+                               sv.writeentitiestoclient_csqcsendstates[numcsqcsendstates++] = s->number;
+                       else
+                               Con_Printf("entity %d is in sv.sendentities and marked, but not active, please breakpoint me\n", s->number);
                }
        }
 
        if (sv_cullentities_stats.integer)
                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);
 
-       EntityFrameCSQC_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
+       if(client->entitydatabase5)
+               need_empty = EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, client->entitydatabase5->latestframenum + 1);
+       else
+               EntityFrameCSQC_WriteFrame(msg, maxsize, numcsqcsendstates, sv.writeentitiestoclient_csqcsendstates, 0);
+
+       if(client->num_skippedentityframes >= 10)
+               need_empty = true; // force every 10th frame to be not empty (or cl_movement replay takes too long)
 
        if (client->entitydatabase5)
-               EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence);
+               success = EntityFrame5_WriteFrame(msg, maxsize, client->entitydatabase5, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1, client->movesequence, need_empty);
        else if (client->entitydatabase4)
        {
-               EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
+               success = EntityFrame4_WriteFrame(msg, maxsize, client->entitydatabase4, numsendstates, sv.writeentitiestoclient_sendstates);
                Protocol_WriteStatsReliable();
        }
        else if (client->entitydatabase)
        {
-               EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
+               success = EntityFrame_WriteFrame(msg, maxsize, client->entitydatabase, numsendstates, sv.writeentitiestoclient_sendstates, client - svs.clients + 1);
                Protocol_WriteStatsReliable();
        }
        else
        {
-               EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
+               success = EntityFrameQuake_WriteFrame(msg, maxsize, numsendstates, sv.writeentitiestoclient_sendstates);
                Protocol_WriteStatsReliable();
        }
+
+       if(success)
+               client->num_skippedentityframes = 0;
+       else
+               ++client->num_skippedentityframes;
 }
 
 /*
@@ -1573,8 +1932,8 @@ void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t
        stats[STAT_CELLS] = (int)ent->fields.server->ammo_cells;
        stats[STAT_ACTIVEWEAPON] = (int)ent->fields.server->weapon;
        stats[STAT_VIEWZOOM] = viewzoom;
-       stats[STAT_TOTALSECRETS] = prog->globals.server->total_secrets;
-       stats[STAT_TOTALMONSTERS] = prog->globals.server->total_monsters;
+       stats[STAT_TOTALSECRETS] = (int)prog->globals.server->total_secrets;
+       stats[STAT_TOTALMONSTERS] = (int)prog->globals.server->total_monsters;
        // the QC bumps these itself by sending svc_'s, so we have to keep them
        // zero or they'll be corrected by the engine
        //stats[STAT_SECRETS] = prog->globals.server->found_secrets;
@@ -1582,6 +1941,11 @@ void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t
 
        // movement settings for prediction
        // note: these are not sent in protocols with lower MAX_CL_STATS limits
+       stats[STAT_MOVEFLAGS] = MOVEFLAG_VALID
+               | (sv_gameplayfix_q2airaccelerate.integer ? MOVEFLAG_Q2AIRACCELERATE : 0)
+               | (sv_gameplayfix_nogravityonground.integer ? MOVEFLAG_NOGRAVITYONGROUND : 0)
+               | (sv_gameplayfix_gravityunaffectedbyticrate.integer ? MOVEFLAG_GRAVITYUNAFFECTEDBYTICRATE : 0)
+       ;
        statsf[STAT_MOVEVARS_TICRATE] = sys_ticrate.value;
        statsf[STAT_MOVEVARS_TIMESCALE] = slowmo.value;
        statsf[STAT_MOVEVARS_GRAVITY] = sv_gravity.value;
@@ -1601,6 +1965,17 @@ void SV_WriteClientdataToMessage (client_t *client, prvm_edict_t *ent, sizebuf_t
        statsf[STAT_MOVEVARS_AIRACCEL_SIDEWAYS_FRICTION] = sv_airaccel_sideways_friction.value;
        statsf[STAT_MOVEVARS_FRICTION] = sv_friction.value;
        statsf[STAT_MOVEVARS_WATERFRICTION] = sv_waterfriction.value >= 0 ? sv_waterfriction.value : sv_friction.value;
+       statsf[STAT_MOVEVARS_AIRSTOPACCELERATE] = sv_airstopaccelerate.value;
+       statsf[STAT_MOVEVARS_AIRSTRAFEACCELERATE] = sv_airstrafeaccelerate.value;
+       statsf[STAT_MOVEVARS_MAXAIRSTRAFESPEED] = sv_maxairstrafespeed.value;
+       statsf[STAT_MOVEVARS_AIRSTRAFEACCEL_QW] = sv_airstrafeaccel_qw.value;
+       statsf[STAT_MOVEVARS_AIRCONTROL] = sv_aircontrol.value;
+       statsf[STAT_MOVEVARS_AIRCONTROL_POWER] = sv_aircontrol_power.value;
+       statsf[STAT_MOVEVARS_WARSOWBUNNY_AIRFORWARDACCEL] = sv_warsowbunny_airforwardaccel.value;
+       statsf[STAT_MOVEVARS_WARSOWBUNNY_ACCEL] = sv_warsowbunny_accel.value;
+       statsf[STAT_MOVEVARS_WARSOWBUNNY_TOPSPEED] = sv_warsowbunny_topspeed.value;
+       statsf[STAT_MOVEVARS_WARSOWBUNNY_TURNACCEL] = sv_warsowbunny_turnaccel.value;
+       statsf[STAT_MOVEVARS_WARSOWBUNNY_BACKTOSIDERATIO] = sv_warsowbunny_backtosideratio.value;
        statsf[STAT_FRAGLIMIT] = fraglimit.value;
        statsf[STAT_TIMELIMIT] = timelimit.value;
 
@@ -1736,7 +2111,7 @@ void SV_FlushBroadcastMessages(void)
        SZ_Clear(&sv.datagram);
 }
 
-static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize)
+static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int maxsize, int maxsize2)
 {
        // scan the splitpoints to find out how many we can fit in
        int numsegments, j, split;
@@ -1745,34 +2120,28 @@ static void SV_WriteUnreliableMessages(client_t *client, sizebuf_t *msg, int max
        // always accept the first one if it's within 1024 bytes, this ensures
        // that very big datagrams which are over the rate limit still get
        // through, just to keep it working
-       j = msg->cursize + client->unreliablemsg_splitpoint[0];
-       if (maxsize < 1024 && j > maxsize && j <= 1024)
-       {
-               numsegments = 1;
-               maxsize = 1024;
-       }
-       else
-               for (numsegments = 0;numsegments < client->unreliablemsg_splitpoints;numsegments++)
-                       if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
-                               break;
-       if (numsegments > 0)
-       {
-               // some will fit, so add the ones that will fit
-               split = client->unreliablemsg_splitpoint[numsegments-1];
-               // note this discards ones that were accepted by the segments scan but
-               // can not fit, such as a really huge first one that will never ever
-               // fit in a packet...
-               if (msg->cursize + split <= maxsize)
-                       SZ_Write(msg, client->unreliablemsg.data, split);
-               // remove the part we sent, keeping any remaining data
-               client->unreliablemsg.cursize -= split;
-               if (client->unreliablemsg.cursize > 0)
-                       memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
-               // adjust remaining splitpoints
-               client->unreliablemsg_splitpoints -= numsegments;
-               for (j = 0;j < client->unreliablemsg_splitpoints;j++)
-                       client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
-       }
+       for (numsegments = 1;numsegments < client->unreliablemsg_splitpoints;numsegments++)
+               if (msg->cursize + client->unreliablemsg_splitpoint[numsegments] > maxsize)
+                       break;
+       // the first segment gets an exemption from the rate limiting, otherwise
+       // it could get dropped consistently due to a low rate limit
+       if (numsegments == 1)
+               maxsize = maxsize2;
+       // some will fit, so add the ones that will fit
+       split = client->unreliablemsg_splitpoint[numsegments-1];
+       // note this discards ones that were accepted by the segments scan but
+       // can not fit, such as a really huge first one that will never ever
+       // fit in a packet...
+       if (msg->cursize + split <= maxsize)
+               SZ_Write(msg, client->unreliablemsg.data, split);
+       // remove the part we sent, keeping any remaining data
+       client->unreliablemsg.cursize -= split;
+       if (client->unreliablemsg.cursize > 0)
+               memmove(client->unreliablemsg.data, client->unreliablemsg.data + split, client->unreliablemsg.cursize);
+       // adjust remaining splitpoints
+       client->unreliablemsg_splitpoints -= numsegments;
+       for (j = 0;j < client->unreliablemsg_splitpoints;j++)
+               client->unreliablemsg_splitpoint[j] = client->unreliablemsg_splitpoint[numsegments + j] - split;
 }
 
 /*
@@ -1785,7 +2154,7 @@ static void SV_SendClientDatagram (client_t *client)
        int clientrate, maxrate, maxsize, maxsize2, downloadsize;
        sizebuf_t msg;
        int stats[MAX_CL_STATS];
-       unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
+       static unsigned char sv_sendclientdatagram_buf[NET_MAXMESSAGE];
 
        // obey rate limit by limiting packet frequency if the packet size
        // limiting fails
@@ -1878,7 +2247,7 @@ static void SV_SendClientDatagram (client_t *client)
                // add as many queued unreliable messages (effects) as we can fit
                // limit effects to half of the remaining space
                if (client->unreliablemsg.cursize)
-                       SV_WriteUnreliableMessages (client, &msg, (msg.cursize + maxsize) / 2);
+                       SV_WriteUnreliableMessages (client, &msg, maxsize/2, maxsize2);
 
                // now write as many entities as we can fit, and also sends stats
                SV_WriteEntitiesToClient (client, client->edict, &msg, maxsize);
@@ -1957,7 +2326,7 @@ static void SV_UpdateToReliableMessages (void)
                if (strcmp(host_client->old_name, host_client->name))
                {
                        if (host_client->spawned)
-                               SV_BroadcastPrintf("%s changed name to %s\n", host_client->old_name, host_client->name);
+                               SV_BroadcastPrintf("%s ^7changed name to %s\n", host_client->old_name, host_client->name);
                        strlcpy(host_client->old_name, host_client->name, sizeof(host_client->old_name));
                        // send notification to all clients
                        MSG_WriteByte (&sv.reliable_datagram, svc_updatename);
@@ -2009,7 +2378,7 @@ static void SV_UpdateToReliableMessages (void)
                        }
 
                        if( oldclientcamera != host_client->clientcamera ) {
-                               MSG_WriteByte (&sv.reliable_datagram, svc_setview );
+                               MSG_WriteByte (&host_client->netconnection->message, svc_setview );
                                MSG_WriteShort (&host_client->netconnection->message, host_client->clientcamera);
                        }
                }
@@ -2030,7 +2399,7 @@ static void SV_UpdateToReliableMessages (void)
        }
 
        for (j = 0, client = svs.clients;j < svs.maxclients;j++, client++)
-               if (client->netconnection)
+               if (client->netconnection && (client->spawned || client->clientconnectcalled)) // also send MSG_ALL to people who are past ClientConnect, but not spawned yet
                        SZ_Write (&client->netconnection->message, sv.reliable_datagram.data, sv.reliable_datagram.cursize);
 
        SZ_Clear (&sv.reliable_datagram);
@@ -2087,13 +2456,58 @@ static void SV_StartDownload_f(void)
                host_client->download_started = true;
 }
 
+/*
+ * Compression extension negotiation:
+ *
+ * Server to client:
+ *   cl_serverextension_download 2
+ *
+ * Client to server:
+ *   download <filename> <list of zero or more suppported compressions in order of preference>
+ * e.g.
+ *   download maps/map1.bsp lzo deflate huffman
+ *
+ * Server to client:
+ *   cl_downloadbegin <compressed size> <filename> <compression method actually used>
+ * e.g.
+ *   cl_downloadbegin 123456 maps/map1.bsp deflate
+ *
+ * The server may choose not to compress the file by sending no compression name, like:
+ *   cl_downloadbegin 345678 maps/map1.bsp
+ *
+ * NOTE: the "download" command may only specify compression algorithms if
+ *       cl_serverextension_download is 2!
+ *       If cl_serverextension_download has a different value, the client must
+ *       assume this extension is not supported!
+ */
+
+static void Download_CheckExtensions(void)
+{
+       int i;
+       int argc = Cmd_Argc();
+
+       // first reset them all
+       host_client->download_deflate = false;
+       
+       for(i = 2; i < argc; ++i)
+       {
+               if(!strcmp(Cmd_Argv(i), "deflate"))
+               {
+                       host_client->download_deflate = true;
+                       break;
+               }
+       }
+}
+
 static void SV_Download_f(void)
 {
        const char *whichpack, *whichpack2, *extension;
+       qboolean is_csqc; // so we need to check only once
 
-       if (Cmd_Argc() != 2)
+       if (Cmd_Argc() < 2)
        {
-               SV_ClientPrintf("usage: download <filename>\n");
+               SV_ClientPrintf("usage: download <filename> {<extensions>}*\n");
+               SV_ClientPrintf("       supported extensions: deflate\n");
                return;
        }
 
@@ -2117,19 +2531,47 @@ static void SV_Download_f(void)
                host_client->download_started = false;
        }
 
-       if (!sv_allowdownloads.integer)
+       is_csqc = (sv.csqc_progname[0] && strcmp(Cmd_Argv(1), sv.csqc_progname) == 0);
+       
+       if (!sv_allowdownloads.integer && !is_csqc)
        {
                SV_ClientPrintf("Downloads are disabled on this server\n");
                Host_ClientCommands("\nstopdownload\n");
                return;
        }
 
+       Download_CheckExtensions();
+
        strlcpy(host_client->download_name, Cmd_Argv(1), sizeof(host_client->download_name));
        extension = FS_FileExtension(host_client->download_name);
 
        // host_client is asking to download a specified file
-       if (developer.integer >= 100)
-               Con_Printf("Download request for %s by %s\n", host_client->download_name, host_client->name);
+       if (developer_extra.integer)
+               Con_DPrintf("Download request for %s by %s\n", host_client->download_name, host_client->name);
+
+       if(is_csqc)
+       {
+               char extensions[MAX_QPATH]; // make sure this can hold all extensions
+               extensions[0] = '\0';
+               
+               if(host_client->download_deflate)
+                       strlcat(extensions, " deflate", sizeof(extensions));
+               
+               Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
+
+               if(host_client->download_deflate && svs.csqc_progdata_deflated)
+                       host_client->download_file = FS_FileFromData(svs.csqc_progdata_deflated, svs.csqc_progsize_deflated, true);
+               else
+                       host_client->download_file = FS_FileFromData(svs.csqc_progdata, sv.csqc_progsize, true);
+               
+               // no, no space is needed between %s and %s :P
+               Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
+
+               host_client->download_expectedposition = 0;
+               host_client->download_started = false;
+               host_client->sendsignon = true; // make sure this message is sent
+               return;
+       }
 
        if (!FS_FileExists(host_client->download_name))
        {
@@ -2190,7 +2632,7 @@ static void SV_Download_f(void)
                }
        }
 
-       host_client->download_file = FS_Open(host_client->download_name, "rb", true, false);
+       host_client->download_file = FS_OpenVirtualFile(host_client->download_name, true);
        if (!host_client->download_file)
        {
                SV_ClientPrintf("Download rejected: server could not open the file \"%s\"\n", host_client->download_name);
@@ -2207,8 +2649,31 @@ static void SV_Download_f(void)
                return;
        }
 
+       if (FS_FileSize(host_client->download_file) < 0)
+       {
+               SV_ClientPrintf("Download rejected: file \"%s\" is not a regular file\n", host_client->download_name);
+               Host_ClientCommands("\nstopdownload\n");
+               FS_Close(host_client->download_file);
+               host_client->download_file = NULL;
+               return;
+       }
+
        Con_DPrintf("Downloading %s to %s\n", host_client->download_name, host_client->name);
 
+       /*
+        * we can only do this if we would actually deflate on the fly
+        * which we do not (yet)!
+       {
+               char extensions[MAX_QPATH]; // make sure this can hold all extensions
+               extensions[0] = '\0';
+               
+               if(host_client->download_deflate)
+                       strlcat(extensions, " deflate", sizeof(extensions));
+
+               // no, no space is needed between %s and %s :P
+               Host_ClientCommands("\ncl_downloadbegin %i %s%s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name, extensions);
+       }
+       */
        Host_ClientCommands("\ncl_downloadbegin %i %s\n", (int)FS_FileSize(host_client->download_file), host_client->download_name);
 
        host_client->download_expectedposition = 0;
@@ -2260,7 +2725,7 @@ int SV_ModelIndex(const char *s, int precachemode)
                                if (precachemode == 1)
                                        Con_Printf("SV_ModelIndex(\"%s\"): not precached (fix your code), precaching anyway\n", filename);
                                strlcpy(sv.model_precache[i], filename, sizeof(sv.model_precache[i]));
-                               sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, false);
+                               sv.models[i] = Mod_ForName (sv.model_precache[i], true, false, s[0] == '*' ? sv.worldname : NULL);
                                if (sv.state != ss_loading)
                                {
                                        MSG_WriteByte(&sv.reliable_datagram, svc_precache);
@@ -2336,21 +2801,33 @@ SV_ParticleEffectIndex
 int SV_ParticleEffectIndex(const char *name)
 {
        int i, argc, linenumber, effectnameindex;
+       int filepass;
        fs_offset_t filesize;
        unsigned char *filedata;
-       const char *text, *textstart, *textend;
+       const char *text;
+       const char *textstart;
+       //const char *textend;
        char argv[16][1024];
+       char filename[MAX_QPATH];
        if (!sv.particleeffectnamesloaded)
        {
                sv.particleeffectnamesloaded = true;
                memset(sv.particleeffectname, 0, sizeof(sv.particleeffectname));
                for (i = 0;i < EFFECT_TOTAL;i++)
                        strlcpy(sv.particleeffectname[i], standardeffectnames[i], sizeof(sv.particleeffectname[i]));
-               filedata = FS_LoadFile("effectinfo.txt", tempmempool, true, &filesize);
-               if (filedata)
+               for (filepass = 0;;filepass++)
                {
+                       if (filepass == 0)
+                               dpsnprintf(filename, sizeof(filename), "effectinfo.txt");
+                       else if (filepass == 1)
+                               dpsnprintf(filename, sizeof(filename), "%s_effectinfo.txt", sv.worldnamenoextension);
+                       else
+                               break;
+                       filedata = FS_LoadFile(filename, tempmempool, true, &filesize);
+                       if (!filedata)
+                               continue;
                        textstart = (const char *)filedata;
-                       textend = (const char *)filedata + filesize;
+                       //textend = (const char *)filedata + filesize;
                        text = textstart;
                        for (linenumber = 1;;linenumber++)
                        {
@@ -2389,7 +2866,7 @@ int SV_ParticleEffectIndex(const char *name)
                                                // if we run out of names, abort
                                                if (effectnameindex == SV_MAX_PARTICLEEFFECTNAME)
                                                {
-                                                       Con_Printf("effectinfo.txt:%i: too many effects!\n", linenumber);
+                                                       Con_Printf("%s:%i: too many effects!\n", filename, linenumber);
                                                        break;
                                                }
                                        }
@@ -2406,6 +2883,20 @@ int SV_ParticleEffectIndex(const char *name)
        return 0;
 }
 
+dp_model_t *SV_GetModelByIndex(int modelindex)
+{
+       return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
+}
+
+dp_model_t *SV_GetModelFromEdict(prvm_edict_t *ed)
+{
+       int modelindex;
+       if (!ed || ed->priv.server->free)
+               return NULL;
+       modelindex = (int)ed->fields.server->modelindex;
+       return (modelindex > 0 && modelindex < MAX_MODELS) ? sv.models[modelindex] : NULL;
+}
+
 /*
 ================
 SV_CreateBaseline
@@ -2487,6 +2978,54 @@ static void SV_CreateBaseline (void)
        }
 }
 
+/*
+================
+SV_Prepare_CSQC
+
+Load csprogs.dat and comperss it so it doesn't need to be
+reloaded on request.
+================
+*/
+void SV_Prepare_CSQC(void)
+{
+       fs_offset_t progsize;
+
+       if(svs.csqc_progdata)
+       {
+               Con_DPrintf("Unloading old CSQC data.\n");
+               Mem_Free(svs.csqc_progdata);
+               if(svs.csqc_progdata_deflated)
+                       Mem_Free(svs.csqc_progdata_deflated);
+       }
+
+       svs.csqc_progdata = NULL;
+       svs.csqc_progdata_deflated = NULL;
+       
+       sv.csqc_progname[0] = 0;
+       svs.csqc_progdata = FS_LoadFile(csqc_progname.string, sv_mempool, false, &progsize);
+
+       if(progsize > 0)
+       {
+               size_t deflated_size;
+
+               sv.csqc_progsize = (int)progsize;
+               sv.csqc_progcrc = CRC_Block(svs.csqc_progdata, progsize);
+               strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
+               Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
+
+               Con_DPrint("Compressing csprogs.dat\n");
+               //unsigned char *FS_Deflate(const unsigned char *data, size_t size, size_t *deflated_size, int level, mempool_t *mempool);
+               svs.csqc_progdata_deflated = FS_Deflate(svs.csqc_progdata, progsize, &deflated_size, -1, sv_mempool);
+               svs.csqc_progsize_deflated = (int)deflated_size;
+               if(svs.csqc_progdata_deflated)
+               {
+                       Con_DPrintf("Deflated: %g%%\n", 100.0 - 100.0 * (deflated_size / (float)progsize));
+                       Con_DPrintf("Uncompressed: %u\nCompressed:   %u\n", (unsigned)sv.csqc_progsize, (unsigned)svs.csqc_progsize_deflated);
+               }
+               else
+                       Con_DPrintf("Cannot compress - need zlib for this. Using uncompressed progs only.\n");
+       }
+}
 
 /*
 ================
@@ -2529,7 +3068,7 @@ void SV_SpawnServer (const char *server)
        int i;
        char *entities;
        dp_model_t *worldmodel;
-       char modelname[sizeof(sv.modelname)];
+       char modelname[sizeof(sv.worldname)];
 
        Con_DPrintf("SpawnServer: %s\n", server);
 
@@ -2550,6 +3089,7 @@ void SV_SpawnServer (const char *server)
        if(sv.active)
        {
                SV_VM_Begin();
+               World_End(&sv.world);
                if(prog->funcoffsets.SV_Shutdown)
                {
                        func_t s = prog->funcoffsets.SV_Shutdown;
@@ -2559,7 +3099,10 @@ void SV_SpawnServer (const char *server)
                SV_VM_End();
        }
 
-       worldmodel = Mod_ForName(modelname, false, true, true);
+       // free q3 shaders so that any newly downloaded shaders will be active
+       Mod_FreeQ3Shaders();
+
+       worldmodel = Mod_ForName(modelname, false, developer.integer > 0, NULL);
        if (!worldmodel || !worldmodel->TraceBox)
        {
                Con_Printf("Couldn't load map %s\n", modelname);
@@ -2616,6 +3159,8 @@ void SV_SpawnServer (const char *server)
        // level's data which is no longer valiud
        cls.signon = 0;
 
+       Cvar_SetValue("halflifebsp", worldmodel->brush.ishlbsp);
+
        if(*sv_random_seed.string)
        {
                srand(sv_random_seed.integer);
@@ -2626,7 +3171,15 @@ void SV_SpawnServer (const char *server)
 
        sv.active = true;
 
+       // set level base name variables for later use
        strlcpy (sv.name, server, sizeof (sv.name));
+       strlcpy(sv.worldname, modelname, sizeof(sv.worldname));
+       FS_StripExtension(sv.worldname, sv.worldnamenoextension, sizeof(sv.worldnamenoextension));
+       strlcpy(sv.worldbasename, !strncmp(sv.worldnamenoextension, "maps/", 5) ? sv.worldnamenoextension + 5 : sv.worldnamenoextension, sizeof(sv.worldbasename));
+       //Cvar_SetQuick(&sv_worldmessage, sv.worldmessage); // set later after QC is spawned
+       Cvar_SetQuick(&sv_worldname, sv.worldname);
+       Cvar_SetQuick(&sv_worldnamenoextension, sv.worldnamenoextension);
+       Cvar_SetQuick(&sv_worldbasename, sv.worldbasename);
 
        sv.protocol = Protocol_EnumForName(sv_protocolname.string);
        if (sv.protocol == PROTOCOL_UNKNOWN)
@@ -2666,25 +3219,26 @@ void SV_SpawnServer (const char *server)
        Mod_ClearUsed();
        worldmodel->used = true;
 
-       strlcpy (sv.name, server, sizeof (sv.name));
-       strlcpy(sv.modelname, modelname, sizeof(sv.modelname));
        sv.worldmodel = worldmodel;
        sv.models[1] = sv.worldmodel;
 
 //
 // clear world interaction links
 //
-       World_SetSize(&sv.world, sv.worldmodel->name, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
+       World_SetSize(&sv.world, sv.worldname, sv.worldmodel->normalmins, sv.worldmodel->normalmaxs);
+       World_Start(&sv.world);
 
        strlcpy(sv.sound_precache[0], "", sizeof(sv.sound_precache[0]));
 
        strlcpy(sv.model_precache[0], "", sizeof(sv.model_precache[0]));
-       strlcpy(sv.model_precache[1], sv.modelname, sizeof(sv.model_precache[1]));
-       for (i = 1;i < sv.worldmodel->brush.numsubmodels;i++)
+       strlcpy(sv.model_precache[1], sv.worldname, sizeof(sv.model_precache[1]));
+       for (i = 1;i < sv.worldmodel->brush.numsubmodels && i+1 < MAX_MODELS;i++)
        {
                dpsnprintf(sv.model_precache[i+1], sizeof(sv.model_precache[i+1]), "*%i", i);
-               sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, false);
+               sv.models[i+1] = Mod_ForName (sv.model_precache[i+1], false, false, sv.worldname);
        }
+       if(i < sv.worldmodel->brush.numsubmodels)
+               Con_Printf("Too many submodels (MAX_MODELS is %i)\n", MAX_MODELS);
 
 //
 // load the rest of the entities
@@ -2693,7 +3247,7 @@ void SV_SpawnServer (const char *server)
        ent = PRVM_EDICT_NUM(0);
        memset (ent->fields.server, 0, prog->progs->entityfields * 4);
        ent->priv.server->free = false;
-       ent->fields.server->model = PRVM_SetEngineString(sv.modelname);
+       ent->fields.server->model = PRVM_SetEngineString(sv.worldname);
        ent->fields.server->modelindex = 1;             // world model
        ent->fields.server->solid = SOLID_BSP;
        ent->fields.server->movetype = MOVETYPE_PUSH;
@@ -2724,9 +3278,9 @@ void SV_SpawnServer (const char *server)
        }
 
        // load replacement entity file if found
-       if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("maps/%s.ent", sv.name), tempmempool, true, NULL)))
+       if (sv_entpatch.integer && (entities = (char *)FS_LoadFile(va("%s.ent", sv.worldnamenoextension), tempmempool, true, NULL)))
        {
-               Con_Printf("Loaded maps/%s.ent\n", sv.name);
+               Con_Printf("Loaded %s.ent\n", sv.worldnamenoextension);
                PRVM_ED_LoadFromFile (entities);
                Mem_Free(entities);
        }
@@ -2738,25 +3292,33 @@ void SV_SpawnServer (const char *server)
        VectorClear(prog->edicts->fields.server->angles);
 
 // all setup is completed, any further precache statements are errors
-       sv.state = ss_active;
+//     sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
        prog->allowworldwrites = false;
 
 // run two frames to allow everything to settle
+       prog->globals.server->time = sv.time = 1.0001;
        for (i = 0;i < 2;i++)
        {
                sv.frametime = 0.1;
                SV_Physics ();
        }
 
-       Mod_PurgeUnused();
+       if (cls.state == ca_dedicated)
+               Mod_PurgeUnused();
 
 // create a baseline for more efficient communications
        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_CreateBaseline ();
 
+       sv.state = ss_active; // LordHavoc: workaround for svc_precache bug
+
+       // to prevent network timeouts
+       realtime = Sys_DoubleTime();
+       
 // send serverinfo to all connected clients, and set up botclients coming back from a level change
        for (i = 0, host_client = svs.clients;i < svs.maxclients;i++, host_client++)
        {
+               host_client->clientconnectcalled = false; // do NOT call ClientDisconnect if he drops before ClientConnect!
                if (!host_client->active)
                        continue;
                if (host_client->netconnection)
@@ -2781,6 +3343,10 @@ void SV_SpawnServer (const char *server)
                }
        }
 
+       // update the map title cvar
+       strlcpy(sv.worldmessage, PRVM_GetString(prog->edicts->fields.server->message), sizeof(sv.worldmessage)); // map title (not related to filename)
+       Cvar_SetQuick(&sv_worldmessage, sv.worldmessage);
+
        Con_DPrint("Server spawned.\n");
        NetConn_Heartbeat (2);
 
@@ -2802,9 +3368,9 @@ static void SV_VM_CB_EndIncreaseEdicts(void)
        prvm_edict_t *ent;
 
        // link every entity except world
-       for (i = 1, ent = prog->edicts;i < prog->max_edicts;i++, ent++)
+       for (i = 1, ent = prog->edicts;i < prog->num_edicts;i++, ent++)
                if (!ent->priv.server->free)
-                       SV_LinkEdict(ent, false);
+                       SV_LinkEdict(ent);
 }
 
 static void SV_VM_CB_InitEdict(prvm_edict_t *e)
@@ -2849,6 +3415,9 @@ static void SV_VM_CB_InitEdict(prvm_edict_t *e)
 
 static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
 {
+       int i;
+       int e;
+
        World_UnlinkEdict(ed);          // unlink from world bsp
 
        ed->fields.server->model = 0;
@@ -2861,6 +3430,20 @@ static void SV_VM_CB_FreeEdict(prvm_edict_t *ed)
        VectorClear(ed->fields.server->angles);
        ed->fields.server->nextthink = -1;
        ed->fields.server->solid = 0;
+
+       VM_RemoveEdictSkeleton(ed);
+       World_Physics_RemoveFromEntity(&sv.world, ed);
+       World_Physics_RemoveJointFromEntity(&sv.world, ed);
+
+       // make sure csqc networking is aware of the removed entity
+       e = PRVM_NUM_FOR_EDICT(ed);
+       sv.csqcentityversion[e] = 0;
+       for (i = 0;i < svs.maxclients;i++)
+       {
+               if (svs.clients[i].csqcentityscope[e])
+                       svs.clients[i].csqcentityscope[e] = 1; // removed, awaiting send
+               svs.clients[i].csqcentitysendflags[e] = 0xFFFFFF;
+       }
 }
 
 static void SV_VM_CB_CountEdicts(void)
@@ -2915,10 +3498,6 @@ static qboolean SV_VM_CB_LoadEdict(prvm_edict_t *ent)
 
 static void SV_VM_Setup(void)
 {
-       extern cvar_t csqc_progname;    //[515]: csqc crc check and right csprogs name according to progs.dat
-       extern cvar_t csqc_progcrc;
-       extern cvar_t csqc_progsize;
-       size_t csprogsdatasize;
        PRVM_Begin;
        PRVM_InitProg( PRVM_SERVERPROG );
 
@@ -2955,6 +3534,7 @@ static void SV_VM_Setup(void)
        prog->init_cmd = VM_SV_Cmd_Init;
        prog->reset_cmd = VM_SV_Cmd_Reset;
        prog->error_cmd = Host_Error;
+       prog->ExecuteProgram = SVVM_ExecuteProgram;
 
        // TODO: add a requiredfuncs list (ask LH if this is necessary at all)
        PRVM_LoadProgs( sv_progs.string, 0, NULL, REQFIELDS, reqfields, 0, NULL );
@@ -2992,15 +3572,7 @@ static void SV_VM_Setup(void)
 
        PRVM_End;
 
-       // see if there is a csprogs.dat installed, and if so, set the csqc_progcrc accordingly, this will be sent to connecting clients to tell them to only load a matching csprogs.dat file
-       sv.csqc_progname[0] = 0;
-       sv.csqc_progcrc = FS_CRCFile(csqc_progname.string, &csprogsdatasize);
-       sv.csqc_progsize = csprogsdatasize;
-       if (sv.csqc_progsize > 0)
-       {
-               strlcpy(sv.csqc_progname, csqc_progname.string, sizeof(sv.csqc_progname));
-               Con_DPrintf("server detected csqc progs file \"%s\" with size %i and crc %i\n", sv.csqc_progname, sv.csqc_progsize, sv.csqc_progcrc);
-       }
+       SV_Prepare_CSQC();
 }
 
 void SV_VM_Begin(void)