cl_main.c

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/*
Copyright (C) 1996-1997 Id Software, Inc.
 
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 
See the GNU General Public License for more details.
 
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 
*/
// cl_main.c  -- client main loop
 
#include "quakedef.h"
#include "cl_collision.h"
#include "cl_video.h"
#include "image.h"
#include "csprogs.h"
#include "r_shadow.h"
#include "libcurl.h"
#include "snd_main.h"
#include "cdaudio.h"
 
// we need to declare some mouse variables here, because the menu system
// references them even when on a unix system.
 
cvar_t csqc_progname = {CF_CLIENT | CF_SERVER, "csqc_progname","csprogs.dat","name of csprogs.dat file to load"};
cvar_t csqc_progcrc = {CF_CLIENT | CF_READONLY, "csqc_progcrc","-1","CRC of csprogs.dat file to load (-1 is none), only used during level changes and then reset to -1"};
cvar_t csqc_progsize = {CF_CLIENT | CF_READONLY, "csqc_progsize","-1","file size of csprogs.dat file to load (-1 is none), only used during level changes and then reset to -1"};
cvar_t csqc_usedemoprogs = {CF_CLIENT, "csqc_usedemoprogs","1","use csprogs stored in demos"};
cvar_t csqc_polygons_defaultmaterial_nocullface = {CF_CLIENT, "csqc_polygons_defaultmaterial_nocullface", "0", "use 'cull none' behavior in the default shader for rendering R_PolygonBegin - warning: enabling this is not consistent with FTEQW behavior on this feature"};
cvar_t csqc_lowres = {CF_CLIENT, "csqc_lowres", "0", "make EXT_CSQC functions CSQC_UpdateView(), setproperty(), getproperty() use the virtual 2D resolution (FTEQW/QSS behaviour) instead of the real resolution (DP behaviour); this mode is always used for the CSQC_SIMPLE (aka hud-only) CSQC_DrawHud() parameters; see cvars vid_conheight and vid_conwidth"};
 
cvar_t cl_shownet = {CF_CLIENT, "cl_shownet","0","1 = print packet size, 2 = print packet message list"};
cvar_t cl_nolerp = {CF_CLIENT, "cl_nolerp", "0","network update smoothing"};
cvar_t cl_lerpexcess = {CF_CLIENT, "cl_lerpexcess", "0","maximum allowed lerp excess (hides, not fixes, some packet loss)"};
cvar_t cl_lerpanim_maxdelta_server = {CF_CLIENT, "cl_lerpanim_maxdelta_server", "0.1","maximum frame delta for smoothing between server-controlled animation frames (when 0, one network frame)"};
cvar_t cl_lerpanim_maxdelta_framegroups = {CF_CLIENT, "cl_lerpanim_maxdelta_framegroups", "0.1","maximum frame delta for smoothing between framegroups (when 0, one network frame)"};
 
cvar_t cl_itembobheight = {CF_CLIENT, "cl_itembobheight", "0","how much items bob up and down (try 8)"};
cvar_t cl_itembobspeed = {CF_CLIENT, "cl_itembobspeed", "0.5","how frequently items bob up and down"};
 
cvar_t lookspring = {CF_CLIENT | CF_ARCHIVE, "lookspring","0","returns pitch to level with the floor when no longer holding a pitch key"};
cvar_t lookstrafe = {CF_CLIENT | CF_ARCHIVE, "lookstrafe","0","move instead of turning"};
cvar_t sensitivity = {CF_CLIENT | CF_ARCHIVE, "sensitivity","3","mouse speed multiplier"};
 
cvar_t m_pitch = {CF_CLIENT | CF_ARCHIVE, "m_pitch","0.022","mouse pitch speed multiplier"};
cvar_t m_yaw = {CF_CLIENT | CF_ARCHIVE, "m_yaw","0.022","mouse yaw speed multiplier"};
cvar_t m_forward = {CF_CLIENT | CF_ARCHIVE, "m_forward","1","mouse forward speed multiplier"};
cvar_t m_side = {CF_CLIENT | CF_ARCHIVE, "m_side","0.8","mouse side speed multiplier"};
 
cvar_t freelook = {CF_CLIENT | CF_ARCHIVE, "freelook", "1","mouse controls pitch instead of forward/back"};
 
cvar_t cl_autodemo = {CF_CLIENT | CF_ARCHIVE, "cl_autodemo", "0", "records every game played, using the date/time and map name to name the demo file" };
cvar_t cl_autodemo_nameformat = {CF_CLIENT | CF_ARCHIVE, "cl_autodemo_nameformat", "autodemos/%Y-%m-%d_%H-%M", "The format of the cl_autodemo filename, followed by the map name (the date is encoded using strftime escapes)" };
cvar_t cl_autodemo_delete = {CF_CLIENT, "cl_autodemo_delete", "0", "3: automatically delete every newly recorded demo unless this cvar is set to 2 during a game, in case something interesting happened (cvar will be automatically set back to 3);  0: keep every newly recorded demo unless this cvar is set to 1 during a game, in case nothing interesting happened (cvar will be automatically set back to 0).  Technically speaking, the value is a bitmask: bit 1 defines behaviour for all demos, bit 0 overrides behaviour for the demo currently being recorded" };
cvar_t cl_startdemos = {CF_CLIENT | CF_ARCHIVE, "cl_startdemos", "1", "1 enables the `startdemos` loop used in Quake and some mods, 0 goes straight to the menu"};
 
cvar_t r_draweffects = {CF_CLIENT, "r_draweffects", "1","renders temporary sprite effects"};
 
cvar_t cl_explosions_alpha_start = {CF_CLIENT | CF_ARCHIVE, "cl_explosions_alpha_start", "1.5","starting alpha of an explosion shell"};
cvar_t cl_explosions_alpha_end = {CF_CLIENT | CF_ARCHIVE, "cl_explosions_alpha_end", "0","end alpha of an explosion shell (just before it disappears)"};
cvar_t cl_explosions_size_start = {CF_CLIENT | CF_ARCHIVE, "cl_explosions_size_start", "16","starting size of an explosion shell"};
cvar_t cl_explosions_size_end = {CF_CLIENT | CF_ARCHIVE, "cl_explosions_size_end", "128","ending alpha of an explosion shell (just before it disappears)"};
cvar_t cl_explosions_lifetime = {CF_CLIENT | CF_ARCHIVE, "cl_explosions_lifetime", "0.5","how long an explosion shell lasts"};
 
cvar_t cl_stainmaps = {CF_CLIENT | CF_ARCHIVE, "cl_stainmaps", "0","stains lightmaps, much faster than decals but blurred"};
cvar_t cl_stainmaps_clearonload = {CF_CLIENT | CF_ARCHIVE, "cl_stainmaps_clearonload", "1","clear stainmaps on map restart"};
 
cvar_t cl_beams_polygons = {CF_CLIENT | CF_ARCHIVE, "cl_beams_polygons", "1","use beam polygons instead of models"};
cvar_t cl_beams_quakepositionhack = {CF_CLIENT | CF_ARCHIVE, "cl_beams_quakepositionhack", "1", "makes your lightning gun appear to fire from your waist (as in Quake and QuakeWorld)"};
cvar_t cl_beams_instantaimhack = {CF_CLIENT | CF_ARCHIVE, "cl_beams_instantaimhack", "0", "makes your lightning gun aiming update instantly"};
cvar_t cl_beams_lightatend = {CF_CLIENT | CF_ARCHIVE, "cl_beams_lightatend", "0", "make a light at the end of the beam"};
 
cvar_t cl_deathfade = {CF_CLIENT | CF_ARCHIVE, "cl_deathfade", "0", "fade screen to dark red when dead, value represents how fast the fade is (higher is faster)"};
 
cvar_t cl_noplayershadow = {CF_CLIENT | CF_ARCHIVE, "cl_noplayershadow", "0","hide player shadow"};
 
cvar_t cl_dlights_decayradius = {CF_CLIENT | CF_ARCHIVE, "cl_dlights_decayradius", "1", "reduces size of light flashes over time"};
cvar_t cl_dlights_decaybrightness = {CF_CLIENT | CF_ARCHIVE, "cl_dlights_decaybrightness", "1", "reduces brightness of light flashes over time"};
 
cvar_t qport = {CF_CLIENT, "qport", "0", "identification key for playing on qw servers (allows you to maintain a connection to a quakeworld server even if your port changes)"};
 
cvar_t cl_prydoncursor = {CF_CLIENT, "cl_prydoncursor", "0", "enables a mouse pointer which is able to click on entities in the world, useful for point and click mods, see PRYDON_CLIENTCURSOR extension in dpextensions.qc"};
cvar_t cl_prydoncursor_notrace = {CF_CLIENT, "cl_prydoncursor_notrace", "0", "disables traceline used in prydon cursor reporting to the game, saving some cpu time"};
 
cvar_t cl_deathnoviewmodel = {CF_CLIENT, "cl_deathnoviewmodel", "1", "hides gun model when dead"};
 
cvar_t cl_locs_enable = {CF_CLIENT | CF_ARCHIVE, "locs_enable", "1", "enables replacement of certain % codes in chat messages: %l (location), %d (last death location), %h (health), %a (armor), %x (rockets), %c (cells), %r (rocket launcher status), %p (powerup status), %w (weapon status), %t (current time in level)"};
cvar_t cl_locs_show = {CF_CLIENT, "locs_show", "0", "shows defined locations for editing purposes"};
 
cvar_t cl_minfps = {CF_CLIENT | CF_ARCHIVE, "cl_minfps", "40", "minimum fps target - while the rendering performance is below this, it will drift toward lower quality"};
cvar_t cl_minfps_fade = {CF_CLIENT | CF_ARCHIVE, "cl_minfps_fade", "1", "how fast the quality adapts to varying framerate"};
cvar_t cl_minfps_qualitymax = {CF_CLIENT | CF_ARCHIVE, "cl_minfps_qualitymax", "1", "highest allowed drawdistance multiplier"};
cvar_t cl_minfps_qualitymin = {CF_CLIENT | CF_ARCHIVE, "cl_minfps_qualitymin", "0.25", "lowest allowed drawdistance multiplier"};
cvar_t cl_minfps_qualitymultiply = {CF_CLIENT | CF_ARCHIVE, "cl_minfps_qualitymultiply", "0.2", "multiplier for quality changes in quality change per second render time (1 assumes linearity of quality and render time)"};
cvar_t cl_minfps_qualityhysteresis = {CF_CLIENT | CF_ARCHIVE, "cl_minfps_qualityhysteresis", "0.05", "reduce all quality increments by this to reduce flickering"};
cvar_t cl_minfps_qualitystepmax = {CF_CLIENT | CF_ARCHIVE, "cl_minfps_qualitystepmax", "0.1", "maximum quality change in a single frame"};
cvar_t cl_minfps_force = {CF_CLIENT, "cl_minfps_force", "0", "also apply quality reductions in timedemo/capturevideo"};
cvar_t cl_maxfps = {CF_CLIENT | CF_ARCHIVE, "cl_maxfps", "0", "maximum fps cap, 0 = unlimited, if game is running faster than this it will wait before running another frame (useful to make cpu time available to other programs)"};
cvar_t cl_maxfps_alwayssleep = {CF_CLIENT | CF_ARCHIVE, "cl_maxfps_alwayssleep", "0", "gives up some processing time to other applications each frame, value in milliseconds, disabled if a timedemo is running"};
cvar_t cl_maxidlefps = {CF_CLIENT | CF_ARCHIVE, "cl_maxidlefps", "20", "maximum fps cap when the game is not the active window (makes cpu time available to other programs"};
 
cvar_t cl_areagrid_link_SOLID_NOT = {CF_CLIENT, "cl_areagrid_link_SOLID_NOT", "1", "set to 0 to prevent SOLID_NOT entities from being linked to the area grid, and unlink any that are already linked (in the code paths that would otherwise link them), for better performance"};
cvar_t cl_gameplayfix_nudgeoutofsolid_separation = {CF_CLIENT, "cl_gameplayfix_nudgeoutofsolid_separation", "0.03125", "keep objects this distance apart to prevent collision issues on seams"};
 
 
client_static_t cls;
client_state_t  cl;
 
/*
=====================
CL_ClearState
 
=====================
*/
void CL_ClearState(void)
{
    int i;
    entity_t *ent;
 
    CL_VM_ShutDown();
 
// wipe the entire cl structure
    Mem_EmptyPool(cls.levelmempool);
    memset (&cl, 0, sizeof(cl));
 
    S_StopAllSounds();
 
    // reset the view zoom interpolation
    cl.mviewzoom[0] = cl.mviewzoom[1] = 1;
    cl.sensitivityscale = 1.0f;
 
    // enable rendering of the world and such
    cl.csqc_vidvars.drawworld = r_drawworld.integer != 0;
    cl.csqc_vidvars.drawenginesbar = true;
    cl.csqc_vidvars.drawcrosshair = true;
 
    // set up the float version of the stats array for easier access to float stats
    cl.statsf = (float *)cl.stats;
 
    cl.num_entities = 0;
    cl.num_static_entities = 0;
    cl.num_brushmodel_entities = 0;
 
    // tweak these if the game runs out
    cl.max_csqcrenderentities = 0;
    cl.max_entities = MAX_ENTITIES_INITIAL;
    cl.max_static_entities = MAX_STATICENTITIES;
    cl.max_effects = MAX_EFFECTS;
    cl.max_beams = MAX_BEAMS;
    cl.max_dlights = MAX_DLIGHTS;
    cl.max_lightstyle = MAX_LIGHTSTYLES;
    cl.max_brushmodel_entities = MAX_EDICTS;
    cl.max_particles = MAX_PARTICLES_INITIAL; // grows dynamically
    cl.max_showlmps = 0;
 
    cl.num_dlights = 0;
    cl.num_effects = 0;
    cl.num_beams = 0;
 
    cl.csqcrenderentities = NULL;
    cl.entities = (entity_t *)Mem_Alloc(cls.levelmempool, cl.max_entities * sizeof(entity_t));
    cl.entities_active = (unsigned char *)Mem_Alloc(cls.levelmempool, cl.max_brushmodel_entities * sizeof(unsigned char));
    cl.static_entities = (entity_t *)Mem_Alloc(cls.levelmempool, cl.max_static_entities * sizeof(entity_t));
    cl.effects = (cl_effect_t *)Mem_Alloc(cls.levelmempool, cl.max_effects * sizeof(cl_effect_t));
    cl.beams = (beam_t *)Mem_Alloc(cls.levelmempool, cl.max_beams * sizeof(beam_t));
    cl.dlights = (dlight_t *)Mem_Alloc(cls.levelmempool, cl.max_dlights * sizeof(dlight_t));
    cl.lightstyle = (lightstyle_t *)Mem_Alloc(cls.levelmempool, cl.max_lightstyle * sizeof(lightstyle_t));
    cl.brushmodel_entities = (int *)Mem_Alloc(cls.levelmempool, cl.max_brushmodel_entities * sizeof(int));
    cl.particles = (particle_t *) Mem_Alloc(cls.levelmempool, cl.max_particles * sizeof(particle_t));
    cl.showlmps = NULL;
 
    // LadyHavoc: have to set up the baseline info for alpha and other stuff
    for (i = 0;i < cl.max_entities;i++)
    {
        cl.entities[i].state_baseline = defaultstate;
        cl.entities[i].state_previous = defaultstate;
        cl.entities[i].state_current = defaultstate;
    }
 
    if (IS_NEXUIZ_DERIVED(gamemode))
    {
        VectorSet(cl.playerstandmins, -16, -16, -24);
        VectorSet(cl.playerstandmaxs, 16, 16, 45);
        VectorSet(cl.playercrouchmins, -16, -16, -24);
        VectorSet(cl.playercrouchmaxs, 16, 16, 25);
    }
    else
    {
        VectorSet(cl.playerstandmins, -16, -16, -24);
        VectorSet(cl.playerstandmaxs, 16, 16, 24);
        VectorSet(cl.playercrouchmins, -16, -16, -24);
        VectorSet(cl.playercrouchmaxs, 16, 16, 24);
    }
 
    // disable until we get textures for it
    R_ResetSkyBox();
 
    ent = &cl.entities[0];
    // entire entity array was cleared, so just fill in a few fields
    ent->state_current.active = true;
    ent->render.model = cl.worldmodel = NULL; // no world model yet
    ent->render.alpha = 1;
    ent->render.flags = RENDER_SHADOW | RENDER_LIGHT;
    Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, 0, 0, 0, 0, 0, 0, 1);
    ent->render.allowdecals = true;
    CL_UpdateRenderEntity(&ent->render);
 
    // noclip is turned off at start
    noclip_anglehack = false;
 
    // mark all frames invalid for delta
    memset(cl.qw_deltasequence, -1, sizeof(cl.qw_deltasequence));
 
    // set bestweapon data back to Quake data
    IN_BestWeapon_ResetData();
 
    CL_Screen_NewMap();
}
 
extern cvar_t cl_topcolor;
extern cvar_t cl_bottomcolor;
 
void CL_SetInfo(const char *key, const char *value, qbool send, qbool allowstarkey, qbool allowmodel, qbool quiet)
{
    int i;
    qbool fail = false;
    char vabuf[1024];
    if (!allowstarkey && key[0] == '*')
        fail = true;
    if (!allowmodel && (!strcasecmp(key, "pmodel") || !strcasecmp(key, "emodel")))
        fail = true;
    for (i = 0;key[i];i++)
        if (ISWHITESPACE(key[i]) || key[i] == '\"')
            fail = true;
    for (i = 0;value[i];i++)
        if (value[i] == '\r' || value[i] == '\n' || value[i] == '\"')
            fail = true;
    if (fail)
    {
        if (!quiet)
            Con_Printf("Can't setinfo \"%s\" \"%s\"\n", key, value);
        return;
    }
    InfoString_SetValue(cls.userinfo, sizeof(cls.userinfo), key, value);
    if (cls.state == ca_connected && cls.netcon)
    {
        if (cls.protocol == PROTOCOL_QUAKEWORLD)
        {
            MSG_WriteByte(&cls.netcon->message, qw_clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "setinfo \"%s\" \"%s\"", key, value));
        }
        else if (!strcasecmp(key, "_cl_name") || !strcasecmp(key, "name"))
        {
            MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "name \"%s\"", value));
        }
        else if (!strcasecmp(key, "playermodel"))
        {
            MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "playermodel \"%s\"", value));
        }
        else if (!strcasecmp(key, "playerskin"))
        {
            MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "playerskin \"%s\"", value));
        }
        else if (!strcasecmp(key, "topcolor"))
        {
            MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "color %i %i", atoi(value), cl_bottomcolor.integer));
        }
        else if (!strcasecmp(key, "bottomcolor"))
        {
            MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "color %i %i", cl_topcolor.integer, atoi(value)));
        }
        else if (!strcasecmp(key, "rate"))
        {
            MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "rate \"%s\"", value));
        }
        else if (!strcasecmp(key, "rate_burstsize"))
        {
            MSG_WriteByte(&cls.netcon->message, clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, va(vabuf, sizeof(vabuf), "rate_burstsize \"%s\"", value));
        }
    }
}
 
void CL_ExpandEntities(int num)
{
    int i, oldmaxentities;
    entity_t *oldentities;
    if (num >= cl.max_entities)
    {
        if (!cl.entities)
            Sys_Error("CL_ExpandEntities: cl.entities not initialized");
        if (num >= MAX_EDICTS)
            Host_Error("CL_ExpandEntities: num %i >= %i", num, MAX_EDICTS);
        oldmaxentities = cl.max_entities;
        oldentities = cl.entities;
        cl.max_entities = (num & ~255) + 256;
        cl.entities = (entity_t *)Mem_Alloc(cls.levelmempool, cl.max_entities * sizeof(entity_t));
        memcpy(cl.entities, oldentities, oldmaxentities * sizeof(entity_t));
        Mem_Free(oldentities);
        for (i = oldmaxentities;i < cl.max_entities;i++)
        {
            cl.entities[i].state_baseline = defaultstate;
            cl.entities[i].state_previous = defaultstate;
            cl.entities[i].state_current = defaultstate;
        }
    }
}
 
void CL_ExpandCSQCRenderEntities(int num)
{
    int i;
    int oldmaxcsqcrenderentities;
    entity_render_t *oldcsqcrenderentities;
    if (num >= cl.max_csqcrenderentities)
    {
        if (num >= MAX_EDICTS)
            Host_Error("CL_ExpandEntities: num %i >= %i", num, MAX_EDICTS);
        oldmaxcsqcrenderentities = cl.max_csqcrenderentities;
        oldcsqcrenderentities = cl.csqcrenderentities;
        cl.max_csqcrenderentities = (num & ~255) + 256;
        cl.csqcrenderentities = (entity_render_t *)Mem_Alloc(cls.levelmempool, cl.max_csqcrenderentities * sizeof(entity_render_t));
        if (oldcsqcrenderentities)
        {
            memcpy(cl.csqcrenderentities, oldcsqcrenderentities, oldmaxcsqcrenderentities * sizeof(entity_render_t));
            for (i = 0;i < r_refdef.scene.numentities;i++)
                if(r_refdef.scene.entities[i] >= oldcsqcrenderentities && r_refdef.scene.entities[i] < (oldcsqcrenderentities + oldmaxcsqcrenderentities))
                    r_refdef.scene.entities[i] = cl.csqcrenderentities + (r_refdef.scene.entities[i] - oldcsqcrenderentities);
            Mem_Free(oldcsqcrenderentities);
        }
    }
}
 
static void CL_ToggleMenu_Hook(void)
{
#ifdef CONFIG_MENU
    // remove menu
    if (key_dest == key_menu || key_dest == key_menu_grabbed)
        MR_ToggleMenu(0);
#endif
    key_dest = key_game;
}
 
extern cvar_t rcon_secure;
 
/*
=====================
CL_Disconnect
 
Sends a disconnect message to the server
This is also called on Host_Error, so it shouldn't cause any errors
=====================
*/
 
void CL_DisconnectEx(qbool kicked, const char *fmt, ... )
{
    va_list argptr;
    char reason[512];
 
    if (cls.state == ca_dedicated)
        return;
 
    if(fmt)
    {
        va_start(argptr,fmt);
        dpvsnprintf(reason,sizeof(reason),fmt,argptr);
        va_end(argptr);
    }
    else
    {
        dpsnprintf(reason, sizeof(reason), "Disconnect by user");
    }
 
    if (Sys_CheckParm("-profilegameonly"))
        Sys_AllowProfiling(false);
 
    Curl_Clear_forthismap();
 
    Con_DPrintf("CL_Disconnect\n");
 
    Cvar_SetValueQuick(&csqc_progcrc, -1);
    Cvar_SetValueQuick(&csqc_progsize, -1);
    CL_VM_ShutDown();
    // stop sounds (especially looping!)
    S_StopAllSounds();
    // prevent dlcache assets from this server from interfering with the next one
    FS_UnloadPacks_dlcache();
 
    cl.parsingtextexpectingpingforscores = 0; // just in case no reply has come yet
 
    // clear contents blends
    cl.cshifts[0].percent = 0;
    cl.cshifts[1].percent = 0;
    cl.cshifts[2].percent = 0;
    cl.cshifts[3].percent = 0;
 
    cl.worldmodel = NULL;
 
    CL_Parse_ErrorCleanUp();
 
    if (cls.demoplayback)
        CL_StopPlayback();
    else if (cls.netcon)
    {
        sizebuf_t buf;
        unsigned char bufdata[520];
        if (cls.demorecording)
            CL_Stop_f(cmd_local);
 
        if(!kicked)
        {
            // send disconnect message 3 times to improve chances of server
            // receiving it (but it still fails sometimes)
            memset(&buf, 0, sizeof(buf));
            buf.data = bufdata;
            buf.maxsize = sizeof(bufdata);
            if (cls.protocol == PROTOCOL_QUAKEWORLD)
            {
                Con_DPrint("Sending drop command\n");
                MSG_WriteByte(&buf, qw_clc_stringcmd);
                MSG_WriteString(&buf, "drop");
            }
            else
            {
                Con_DPrint("Sending clc_disconnect\n");
                MSG_WriteByte(&buf, clc_disconnect);
                if(cls.protocol == PROTOCOL_DARKPLACES8)
                    MSG_WriteString(&buf, reason);
                // DP8 TODO: write a simpler func that Sys_HandleCrash() calls
                // to send a disconnect message indicating we crashed
            }
            NetConn_SendUnreliableMessage(cls.netcon, &buf, cls.protocol, 10000, 0, false);
            NetConn_SendUnreliableMessage(cls.netcon, &buf, cls.protocol, 10000, 0, false);
            NetConn_SendUnreliableMessage(cls.netcon, &buf, cls.protocol, 10000, 0, false);
        }
 
        NetConn_Close(cls.netcon);
        cls.netcon = NULL;
 
        // It's possible for a server to disconnect a player with an empty reason
        // which is checked here rather than above so we don't print "Disconnect by user".
        if(fmt && reason[0] != '\0')
            dpsnprintf(cl_connect_status, sizeof(cl_connect_status), "Disconnect: %s", reason);
        else
            dp_strlcpy(cl_connect_status, "Disconnected", sizeof(cl_connect_status));
        Con_Printf("%s\n", cl_connect_status);
    }
    cls.state = ca_disconnected;
    cl.islocalgame = false;
    cls.signon = 0;
    cls.demoplayback = cls.timedemo = host.restless = false;
    Cvar_Callback(&vid_vsync); // might need to re-enable vsync
 
    Cvar_Callback(&cl_netport);
 
    // If we're dropped mid-connection attempt, it won't clear otherwise.
    SCR_ClearLoadingScreen(false);
 
    if(host.hook.SV_Shutdown)
        host.hook.SV_Shutdown();
}
 
void CL_Disconnect(void)
{
    CL_DisconnectEx(false, NULL);
}
 
/*
==================
CL_Reconnect_f
 
This command causes the client to wait for the signon messages again.
This is sent just before a server changes levels
==================
*/
static void CL_Reconnect_f(cmd_state_t *cmd)
{
    char temp[128];
    // if not connected, reconnect to the most recent server
    if (!cls.netcon)
    {
        // if we have connected to a server recently, the userinfo
        // will still contain its IP address, so get the address...
        InfoString_GetValue(cls.userinfo, "*ip", temp, sizeof(temp));
        if (temp[0])
            CL_EstablishConnection(temp, -1);
        else
            Con_Printf(CON_WARN "Reconnect to what server?  (you have not connected to a server yet)\n");
        return;
    }
    // if connected, do something based on protocol
    if (cls.protocol == PROTOCOL_QUAKEWORLD)
    {
        // quakeworld can just re-login
        if (cls.qw_downloadmemory)  // don't change when downloading
            return;
 
        S_StopAllSounds();
 
        if (cls.state == ca_connected)
        {
            Con_Printf("Server is changing level...\n");
            MSG_WriteChar(&cls.netcon->message, qw_clc_stringcmd);
            MSG_WriteString(&cls.netcon->message, "new");
        }
    }
    else
    {
        // netquake uses reconnect on level changes (silly)
        if (Cmd_Argc(cmd) != 1)
        {
            Con_Print("reconnect : wait for signon messages again\n");
            return;
        }
        if (!cls.signon)
        {
            Con_Print("reconnect: no signon, ignoring reconnect\n");
            return;
        }
        cls.signon = 0;     // need new connection messages
    }
}
 
/*
=====================
CL_Connect_f
 
User command to connect to server
=====================
*/
static void CL_Connect_f(cmd_state_t *cmd)
{
    if (Cmd_Argc(cmd) < 2)
    {
        Con_Print("connect <serveraddress> [<key> <value> ...]: connect to a multiplayer game\n");
        return;
    }
    // clear the rcon password, to prevent vulnerability by stuffcmd-ing a connect command
    if(rcon_secure.integer <= 0)
        Cvar_SetQuick(&rcon_password, "");
    CL_EstablishConnection(Cmd_Argv(cmd, 1), 2);
}
 
void CL_Disconnect_f(cmd_state_t *cmd)
{
    Cmd_Argc(cmd) < 1 ? CL_Disconnect() : CL_DisconnectEx(false, Cmd_Argv(cmd, 1));
}
 
 
 
 
/*
=====================
CL_EstablishConnection
 
Host should be either "local" or a net address
=====================
*/
void CL_EstablishConnection(const char *address, int firstarg)
{
    if (cls.state == ca_dedicated)
        return;
 
    // don't connect to a server if we're benchmarking a demo
    if (Sys_CheckParm("-benchmark"))
        return;
 
    // make sure the client ports are open before attempting to connect
    NetConn_UpdateSockets();
 
    if (LHNETADDRESS_FromString(&cls.connect_address, address, 26000) && (cls.connect_mysocket = NetConn_ChooseClientSocketForAddress(&cls.connect_address)))
    {
        cls.connect_trying = true;
        cls.connect_remainingtries = 10;
        cls.connect_nextsendtime = 0;
 
        // only NOW, set connect_userinfo
        if(firstarg >= 0)
        {
            int i;
            *cls.connect_userinfo = 0;
            for(i = firstarg; i+2 <= Cmd_Argc(cmd_local); i += 2)
                InfoString_SetValue(cls.connect_userinfo, sizeof(cls.connect_userinfo), Cmd_Argv(cmd_local, i), Cmd_Argv(cmd_local, i+1));
        }
        else if(firstarg < -1)
        {
            // -1: keep as is (reconnect)
            // -2: clear
            *cls.connect_userinfo = 0;
        }
 
        dp_strlcpy(cl_connect_status, "Connect: pending...", sizeof(cl_connect_status));
        SCR_BeginLoadingPlaque(false);
    }
    else
    {
        Con_Printf(CON_ERROR "Connect: failed, unable to find a network socket suitable to reach %s\n", address);
        dp_strlcpy(cl_connect_status, "Connect: failed, no network", sizeof(cl_connect_status));
    }
}
 
static void CL_EstablishConnection_Local(void)
{
    if(cls.state == ca_disconnected)
        CL_EstablishConnection("local:1", -2);
}
 
 
/*
==============
CL_PrintEntities_f
==============
*/
static void CL_PrintEntities_f(cmd_state_t *cmd)
{
    entity_t *ent;
    int i;
 
    for (i = 0, ent = cl.entities;i < cl.num_entities;i++, ent++)
    {
        const char* modelname;
 
        if (!ent->state_current.active)
            continue;
 
        if (ent->render.model)
            modelname = ent->render.model->name;
        else
            modelname = "--no model--";
        Con_Printf("%3i: %-25s:%4i (%5i %5i %5i) [%3i %3i %3i] %4.2f %5.3f\n", i, modelname, ent->render.framegroupblend[0].frame, (int) ent->state_current.origin[0], (int) ent->state_current.origin[1], (int) ent->state_current.origin[2], (int) ent->state_current.angles[0] % 360, (int) ent->state_current.angles[1] % 360, (int) ent->state_current.angles[2] % 360, ent->render.scale, ent->render.alpha);
    }
}
 
/*
===============
CL_ModelIndexList_f
 
List information on all models in the client modelindex
===============
*/
static void CL_ModelIndexList_f(cmd_state_t *cmd)
{
    int i;
    model_t *model;
 
    // Print Header
    Con_Printf("%3s: %-30s %-8s %-8s\n", "ID", "Name", "Type", "Triangles");
 
    for (i = -MAX_MODELS;i < MAX_MODELS;i++)
    {
        model = CL_GetModelByIndex(i);
        if (!model)
            continue;
        if(model->loaded || i == 1)
            Con_Printf("%3i: %-30s %-8s %-10i\n", i, model->name, model->modeldatatypestring, model->surfmesh.num_triangles);
        else
            Con_Printf("%3i: %-30s %-30s\n", i, model->name, "--no local model found--");
        i++;
    }
}
 
/*
===============
CL_SoundIndexList_f
 
List all sounds in the client soundindex
===============
*/
static void CL_SoundIndexList_f(cmd_state_t *cmd)
{
    int i = 1;
 
    while(cl.sound_precache[i] && i != MAX_SOUNDS)
    { // Valid Sound
        Con_Printf("%i : %s\n", i, cl.sound_precache[i]->name);
        i++;
    }
}
 
/*
===============
CL_UpdateRenderEntity
 
Updates inversematrix, animation interpolation factors, scale, and mins/maxs
===============
*/
void CL_UpdateRenderEntity(entity_render_t *ent)
{
    vec3_t org;
    vec_t scale;
    model_t *model = ent->model;
    // update the inverse matrix for the renderer
    Matrix4x4_Invert_Simple(&ent->inversematrix, &ent->matrix);
    // update the animation blend state
    VM_FrameBlendFromFrameGroupBlend(ent->frameblend, ent->framegroupblend, ent->model, cl.time);
    // we need the matrix origin to center the box
    Matrix4x4_OriginFromMatrix(&ent->matrix, org);
    // update entity->render.scale because the renderer needs it
    ent->scale = scale = Matrix4x4_ScaleFromMatrix(&ent->matrix);
    if (model)
    {
        // NOTE: this directly extracts vector components from the matrix, which relies on the matrix orientation!
#ifdef MATRIX4x4_OPENGLORIENTATION
        if (ent->matrix.m[0][2] != 0 || ent->matrix.m[1][2] != 0)
#else
        if (ent->matrix.m[2][0] != 0 || ent->matrix.m[2][1] != 0)
#endif
        {
            // pitch or roll
            VectorMA(org, scale, model->rotatedmins, ent->mins);
            VectorMA(org, scale, model->rotatedmaxs, ent->maxs);
        }
#ifdef MATRIX4x4_OPENGLORIENTATION
        else if (ent->matrix.m[1][0] != 0 || ent->matrix.m[0][1] != 0)
#else
        else if (ent->matrix.m[0][1] != 0 || ent->matrix.m[1][0] != 0)
#endif
        {
            // yaw
            VectorMA(org, scale, model->yawmins, ent->mins);
            VectorMA(org, scale, model->yawmaxs, ent->maxs);
        }
        else
        {
            VectorMA(org, scale, model->normalmins, ent->mins);
            VectorMA(org, scale, model->normalmaxs, ent->maxs);
        }
    }
    else
    {
        ent->mins[0] = org[0] - 16;
        ent->mins[1] = org[1] - 16;
        ent->mins[2] = org[2] - 16;
        ent->maxs[0] = org[0] + 16;
        ent->maxs[1] = org[1] + 16;
        ent->maxs[2] = org[2] + 16;
    }
}
 
/*
===============
CL_LerpPoint
 
Determines the fraction between the last two messages that the objects
should be put at.
===============
*/
static float CL_LerpPoint(void)
{
    float f;
 
    if (cl_nettimesyncboundmode.integer == 1)
        cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);
 
    // LadyHavoc: lerp in listen games as the server is being capped below the client (usually)
    if (cl.mtime[0] <= cl.mtime[1])
    {
        cl.time = cl.mtime[0];
        return 1;
    }
 
    f = (cl.time - cl.mtime[1]) / (cl.mtime[0] - cl.mtime[1]);
    return bound(0, f, 1 + cl_lerpexcess.value);
}
 
void CL_ClearTempEntities (void)
{
    r_refdef.scene.numtempentities = 0;
    // grow tempentities buffer on request
    if (r_refdef.scene.expandtempentities)
    {
        Con_Printf("CL_NewTempEntity: grow maxtempentities from %i to %i\n", r_refdef.scene.maxtempentities, r_refdef.scene.maxtempentities * 2);
        r_refdef.scene.maxtempentities *= 2;
        r_refdef.scene.tempentities = (entity_render_t *)Mem_Realloc(cls.permanentmempool, r_refdef.scene.tempentities, sizeof(entity_render_t) * r_refdef.scene.maxtempentities);
        r_refdef.scene.expandtempentities = false;
    }
}
 
entity_render_t *CL_NewTempEntity(double shadertime)
{
    entity_render_t *render;
 
    if (r_refdef.scene.numentities >= r_refdef.scene.maxentities)
        return NULL;
    if (r_refdef.scene.numtempentities >= r_refdef.scene.maxtempentities)
    {
        r_refdef.scene.expandtempentities = true; // will be reallocated next frame since current frame may have pointers set already
        return NULL;
    }
    render = &r_refdef.scene.tempentities[r_refdef.scene.numtempentities++];
    memset (render, 0, sizeof(*render));
    r_refdef.scene.entities[r_refdef.scene.numentities++] = render;
 
    render->shadertime = shadertime;
    render->alpha = 1;
    VectorSet(render->colormod, 1, 1, 1);
    VectorSet(render->glowmod, 1, 1, 1);
    return render;
}
 
void CL_Effect(vec3_t org, model_t *model, int startframe, int framecount, float framerate)
{
    int i;
    cl_effect_t *e;
    if (!model) // sanity check
        return;
    if (framerate < 1)
    {
        Con_Printf("CL_Effect: framerate %f is < 1\n", framerate);
        return;
    }
    if (framecount < 1)
    {
        Con_Printf("CL_Effect: framecount %i is < 1\n", framecount);
        return;
    }
    for (i = 0, e = cl.effects;i < cl.max_effects;i++, e++)
    {
        if (e->active)
            continue;
        e->active = true;
        VectorCopy(org, e->origin);
        e->model = model;
        e->starttime = cl.time;
        e->startframe = startframe;
        e->endframe = startframe + framecount;
        e->framerate = framerate;
 
        e->frame = 0;
        e->frame1time = cl.time;
        e->frame2time = cl.time;
        cl.num_effects = max(cl.num_effects, i + 1);
        break;
    }
}
 
void CL_AllocLightFlash(entity_render_t *ent, matrix4x4_t *matrix, float radius, float red, float green, float blue, float decay, float lifetime, char *cubemapname, int style, int shadowenable, vec_t corona, vec_t coronasizescale, vec_t ambientscale, vec_t diffusescale, vec_t specularscale, int flags)
{
    int i;
    dlight_t *dl;
 
// then look for anything else
    dl = cl.dlights;
    for (i = 0;i < cl.max_dlights;i++, dl++)
        if (!dl->radius)
            break;
 
    // unable to find one
    if (i == cl.max_dlights)
        return;
 
    //Con_Printf("dlight %i : %f %f %f : %f %f %f\n", i, org[0], org[1], org[2], red * radius, green * radius, blue * radius);
    memset (dl, 0, sizeof(*dl));
    cl.num_dlights = max(cl.num_dlights, i + 1);
    Matrix4x4_Normalize(&dl->matrix, matrix);
    dl->ent = ent;
    Matrix4x4_OriginFromMatrix(&dl->matrix, dl->origin);
    CL_FindNonSolidLocation(dl->origin, dl->origin, 6);
    Matrix4x4_SetOrigin(&dl->matrix, dl->origin[0], dl->origin[1], dl->origin[2]);
    dl->radius = radius;
    dl->color[0] = red;
    dl->color[1] = green;
    dl->color[2] = blue;
    dl->initialradius = radius;
    dl->initialcolor[0] = red;
    dl->initialcolor[1] = green;
    dl->initialcolor[2] = blue;
    dl->decay = decay / radius; // changed decay to be a percentage decrease
    dl->intensity = 1; // this is what gets decayed
    if (lifetime)
        dl->die = cl.time + lifetime;
    else
        dl->die = 0;
    dl->cubemapname[0] = 0;
    if (cubemapname && cubemapname[0])
        dp_strlcpy(dl->cubemapname, cubemapname, sizeof(dl->cubemapname));
    dl->style = style;
    dl->shadow = shadowenable;
    dl->corona = corona;
    dl->flags = flags;
    dl->coronasizescale = coronasizescale;
    dl->ambientscale = ambientscale;
    dl->diffusescale = diffusescale;
    dl->specularscale = specularscale;
}
 
static void CL_DecayLightFlashes(void)
{
    int i, oldmax;
    dlight_t *dl;
    float time;
 
    time = bound(0, cl.time - cl.oldtime, 0.1);
    oldmax = cl.num_dlights;
    cl.num_dlights = 0;
    for (i = 0, dl = cl.dlights;i < oldmax;i++, dl++)
    {
        if (dl->radius)
        {
            dl->intensity -= time * dl->decay;
            if (cl.time < dl->die && dl->intensity > 0)
            {
                if (cl_dlights_decayradius.integer)
                    dl->radius = dl->initialradius * dl->intensity;
                else
                    dl->radius = dl->initialradius;
                if (cl_dlights_decaybrightness.integer)
                    VectorScale(dl->initialcolor, dl->intensity, dl->color);
                else
                    VectorCopy(dl->initialcolor, dl->color);
                cl.num_dlights = i + 1;
            }
            else
                dl->radius = 0;
        }
    }
}
 
// called before entity relinking
void CL_RelinkLightFlashes(void)
{
    int i, j, k, l;
    dlight_t *dl;
    float frac, f;
    matrix4x4_t tempmatrix;
 
    if (r_dynamic.integer)
    {
        for (i = 0, dl = cl.dlights;i < cl.num_dlights && r_refdef.scene.numlights < MAX_DLIGHTS;i++, dl++)
        {
            if (dl->radius)
            {
                tempmatrix = dl->matrix;
                Matrix4x4_Scale(&tempmatrix, dl->radius, 1);
                // we need the corona fading to be persistent
                R_RTLight_Update(&dl->rtlight, false, &tempmatrix, dl->color, dl->style, dl->cubemapname, dl->shadow, dl->corona, dl->coronasizescale, dl->ambientscale, dl->diffusescale, dl->specularscale, dl->flags);
                r_refdef.scene.lights[r_refdef.scene.numlights++] = &dl->rtlight;
            }
        }
    }
 
    if (!cl.lightstyle)
    {
        for (j = 0;j < cl.max_lightstyle;j++)
        {
            r_refdef.scene.rtlightstylevalue[j] = 1;
            r_refdef.scene.lightstylevalue[j] = 256;
        }
        return;
    }
 
// light animations
// 'm' is normal light, 'a' is no light, 'z' is double bright
    f = cl.time * 10;
    i = (int)floor(f);
    frac = f - i;
    for (j = 0;j < cl.max_lightstyle;j++)
    {
        if (!cl.lightstyle[j].length)
        {
            r_refdef.scene.rtlightstylevalue[j] = 1;
            r_refdef.scene.lightstylevalue[j] = 256;
            continue;
        }
        // static lightstyle "=value"
        if (cl.lightstyle[j].map[0] == '=')
        {
            r_refdef.scene.rtlightstylevalue[j] = atof(cl.lightstyle[j].map + 1);
            if ( r_lerplightstyles.integer || ((int)f - f) < 0.01)
                r_refdef.scene.lightstylevalue[j] = r_refdef.scene.rtlightstylevalue[j];
            continue;
        }
        k = i % cl.lightstyle[j].length;
        l = (i-1) % cl.lightstyle[j].length;
        k = cl.lightstyle[j].map[k] - 'a';
        l = cl.lightstyle[j].map[l] - 'a';
        // rtlightstylevalue is always interpolated because it has no bad
        // consequences for performance
        // lightstylevalue is subject to a cvar for performance reasons;
        // skipping lightmap updates on most rendered frames substantially
        // improves framerates (but makes light fades look bad)
        r_refdef.scene.rtlightstylevalue[j] = ((k*frac)+(l*(1-frac)))*(22/256.0f);
        r_refdef.scene.lightstylevalue[j] = r_lerplightstyles.integer ? (unsigned short)(((k*frac)+(l*(1-frac)))*22) : k*22;
    }
}
 
static void CL_AddQWCTFFlagModel(entity_t *player, int skin)
{
    int frame = player->render.framegroupblend[0].frame;
    float f;
    entity_render_t *flagrender;
    matrix4x4_t flagmatrix;
 
    // this code taken from QuakeWorld
    f = 14;
    if (frame >= 29 && frame <= 40)
    {
        if (frame >= 29 && frame <= 34)
        { //axpain
            if      (frame == 29) f = f + 2;
            else if (frame == 30) f = f + 8;
            else if (frame == 31) f = f + 12;
            else if (frame == 32) f = f + 11;
            else if (frame == 33) f = f + 10;
            else if (frame == 34) f = f + 4;
        }
        else if (frame >= 35 && frame <= 40)
        { // pain
            if      (frame == 35) f = f + 2;
            else if (frame == 36) f = f + 10;
            else if (frame == 37) f = f + 10;
            else if (frame == 38) f = f + 8;
            else if (frame == 39) f = f + 4;
            else if (frame == 40) f = f + 2;
        }
    }
    else if (frame >= 103 && frame <= 118)
    {
        if      (frame >= 103 && frame <= 104) f = f + 6;  //nailattack
        else if (frame >= 105 && frame <= 106) f = f + 6;  //light
        else if (frame >= 107 && frame <= 112) f = f + 7;  //rocketattack
        else if (frame >= 112 && frame <= 118) f = f + 7;  //shotattack
    }
    // end of code taken from QuakeWorld
 
    flagrender = CL_NewTempEntity(player->render.shadertime);
    if (!flagrender)
        return;
 
    flagrender->model = CL_GetModelByIndex(cl.qw_modelindex_flag);
    flagrender->skinnum = skin;
    flagrender->alpha = 1;
    VectorSet(flagrender->colormod, 1, 1, 1);
    VectorSet(flagrender->glowmod, 1, 1, 1);
    // attach the flag to the player matrix
    Matrix4x4_CreateFromQuakeEntity(&flagmatrix, -f, -22, 0, 0, 0, -45, 1);
    Matrix4x4_Concat(&flagrender->matrix, &player->render.matrix, &flagmatrix);
    CL_UpdateRenderEntity(flagrender);
}
 
matrix4x4_t viewmodelmatrix_withbob;
matrix4x4_t viewmodelmatrix_nobob;
 
static const vec3_t muzzleflashorigin = {18, 0, 0};
 
void CL_SetEntityColormapColors(entity_render_t *ent, int colormap)
{
    const unsigned char *cbcolor;
    if (colormap >= 0)
    {
        cbcolor = palette_rgb_pantscolormap[colormap & 0xF];
        VectorScale(cbcolor, (1.0f / 255.0f), ent->colormap_pantscolor);
        cbcolor = palette_rgb_shirtcolormap[(colormap & 0xF0) >> 4];
        VectorScale(cbcolor, (1.0f / 255.0f), ent->colormap_shirtcolor);
    }
    else
    {
        VectorClear(ent->colormap_pantscolor);
        VectorClear(ent->colormap_shirtcolor);
    }
}
 
// note this is a recursive function, recursionlimit should be 32 or so on the initial call
static void CL_UpdateNetworkEntity(entity_t *e, int recursionlimit, qbool interpolate)
{
    const matrix4x4_t *matrix;
    matrix4x4_t blendmatrix, tempmatrix, matrix2;
    int frame;
    vec_t origin[3], angles[3], lerp;
    entity_t *t;
    entity_render_t *r;
    //entity_persistent_t *p = &e->persistent;
    //entity_render_t *r = &e->render;
    // skip inactive entities and world
    if (!e->state_current.active || e == cl.entities)
        return;
    if (recursionlimit < 1)
        return;
    e->render.alpha = e->state_current.alpha * (1.0f / 255.0f); // FIXME: interpolate?
    e->render.scale = e->state_current.scale * (1.0f / 16.0f); // FIXME: interpolate?
    e->render.flags = e->state_current.flags;
    e->render.effects = e->state_current.effects;
    VectorScale(e->state_current.colormod, (1.0f / 32.0f), e->render.colormod);
    VectorScale(e->state_current.glowmod, (1.0f / 32.0f), e->render.glowmod);
    if(e >= cl.entities && e < cl.entities + cl.num_entities)
        e->render.entitynumber = e - cl.entities;
    else
        e->render.entitynumber = 0;
    if (e->state_current.flags & RENDER_COLORMAPPED)
        CL_SetEntityColormapColors(&e->render, e->state_current.colormap);
    else if (e->state_current.colormap > 0 && e->state_current.colormap <= cl.maxclients && cl.scores != NULL)
        CL_SetEntityColormapColors(&e->render, cl.scores[e->state_current.colormap-1].colors);
    else
        CL_SetEntityColormapColors(&e->render, -1);
    e->render.skinnum = e->state_current.skin;
    if (e->state_current.tagentity)
    {
        // attached entity (gun held in player model's hand, etc)
        // if the tag entity is currently impossible, skip it
        if (e->state_current.tagentity >= cl.num_entities)
            return;
        t = cl.entities + e->state_current.tagentity;
        // if the tag entity is inactive, skip it
        if (t->state_current.active)
        {
            // update the parent first
            CL_UpdateNetworkEntity(t, recursionlimit - 1, interpolate);
            r = &t->render;
        }
        else
        {
            // it may still be a CSQC entity... trying to use its
            // info from last render frame (better than nothing)
            if(!cl.csqc_server2csqcentitynumber[e->state_current.tagentity])
                return;
            r = cl.csqcrenderentities + cl.csqc_server2csqcentitynumber[e->state_current.tagentity];
            if(!r->entitynumber)
                return; // neither CSQC nor legacy entity... can't attach
        }
        // make relative to the entity
        matrix = &r->matrix;
        // some properties of the tag entity carry over
        e->render.flags |= r->flags & (RENDER_EXTERIORMODEL | RENDER_VIEWMODEL);
        // if a valid tagindex is used, make it relative to that tag instead
        if (e->state_current.tagentity && e->state_current.tagindex >= 1 && r->model)
        {
            if(!Mod_Alias_GetTagMatrix(r->model, r->frameblend, r->skeleton, e->state_current.tagindex - 1, &blendmatrix)) // i.e. no error
            {
                // concat the tag matrices onto the entity matrix
                Matrix4x4_Concat(&tempmatrix, &r->matrix, &blendmatrix);
                // use the constructed tag matrix
                matrix = &tempmatrix;
            }
        }
    }
    else if (e->render.flags & RENDER_VIEWMODEL)
    {
        // view-relative entity (guns and such)
        if (e->render.effects & EF_NOGUNBOB)
            matrix = &viewmodelmatrix_nobob; // really attached to view
        else
            matrix = &viewmodelmatrix_withbob; // attached to gun bob matrix
    }
    else
    {
        // world-relative entity (the normal kind)
        matrix = &identitymatrix;
    }
 
    // movement lerp
    // if it's the predicted player entity, update according to client movement
    // but don't lerp if going through a teleporter as it causes a bad lerp
    // also don't use the predicted location if fixangle was set on both of
    // the most recent server messages, as that cause means you are spectating
    // someone or watching a cutscene of some sort
    if (cl_nolerp.integer || cls.timedemo)
        interpolate = false;
 
    if (e == cl.entities + cl.playerentity && cl.movement_predicted && (!cl.fixangle[1] || !cl.fixangle[0]))
    {
        VectorCopy(cl.movement_origin, origin);
        VectorSet(angles, 0, cl.viewangles[1], 0);
    }
    else if (interpolate && e->persistent.lerpdeltatime > 0 && (lerp = (cl.time - e->persistent.lerpstarttime) / e->persistent.lerpdeltatime) < 1 + cl_lerpexcess.value)
    {
        // interpolate the origin and angles
        lerp = max(0, lerp);
        VectorLerp(e->persistent.oldorigin, lerp, e->persistent.neworigin, origin);
#if 0
        // this fails at the singularity of euler angles
        VectorSubtract(e->persistent.newangles, e->persistent.oldangles, delta);
        if (delta[0] < -180) delta[0] += 360;else if (delta[0] >= 180) delta[0] -= 360;
        if (delta[1] < -180) delta[1] += 360;else if (delta[1] >= 180) delta[1] -= 360;
        if (delta[2] < -180) delta[2] += 360;else if (delta[2] >= 180) delta[2] -= 360;
        VectorMA(e->persistent.oldangles, lerp, delta, angles);
#else
        {
            vec3_t f0, u0, f1, u1;
            AngleVectors(e->persistent.oldangles, f0, NULL, u0);
            AngleVectors(e->persistent.newangles, f1, NULL, u1);
            VectorMAM(1-lerp, f0, lerp, f1, f0);
            VectorMAM(1-lerp, u0, lerp, u1, u0);
            AnglesFromVectors(angles, f0, u0, false);
        }
#endif
    }
    else
    {
        // no interpolation
        VectorCopy(e->persistent.neworigin, origin);
        VectorCopy(e->persistent.newangles, angles);
    }
 
    // model setup and some modelflags
    frame = e->state_current.frame;
    e->render.model = CL_GetModelByIndex(e->state_current.modelindex);
    if (e->render.model)
    {
        if (e->render.skinnum >= e->render.model->numskins)
            e->render.skinnum = 0;
        if (frame >= e->render.model->numframes)
            frame = 0;
        // models can set flags such as EF_ROCKET
        // this 0xFF800000 mask is EF_NOMODELFLAGS plus all the higher EF_ flags such as EF_ROCKET
        if (!(e->render.effects & 0xFF800000))
            e->render.effects |= e->render.model->effects;
        // if model is alias or this is a tenebrae-like dlight, reverse pitch direction
        if (e->render.model->type == mod_alias)
            angles[0] = -angles[0];
        if ((e->render.effects & EF_SELECTABLE) && cl.cmd.cursor_entitynumber == e->state_current.number)
        {
            VectorScale(e->render.colormod, 2, e->render.colormod);
            VectorScale(e->render.glowmod, 2, e->render.glowmod);
        }
    }
    // if model is alias or this is a tenebrae-like dlight, reverse pitch direction
    else if (e->state_current.lightpflags & PFLAGS_FULLDYNAMIC)
        angles[0] = -angles[0];
        // NOTE: this must be synced to SV_GetPitchSign!
 
    if ((e->render.effects & EF_ROTATE) && !(e->render.flags & RENDER_VIEWMODEL))
    {
        angles[1] = ANGLEMOD(100*cl.time);
        if (cl_itembobheight.value)
            origin[2] += (cos(cl.time * cl_itembobspeed.value * (2.0 * M_PI)) + 1.0) * 0.5 * cl_itembobheight.value;
    }
 
    // animation lerp
    e->render.skeleton = NULL;
    if (e->render.flags & RENDER_COMPLEXANIMATION)
    {
        e->render.framegroupblend[0] = e->state_current.framegroupblend[0];
        e->render.framegroupblend[1] = e->state_current.framegroupblend[1];
        e->render.framegroupblend[2] = e->state_current.framegroupblend[2];
        e->render.framegroupblend[3] = e->state_current.framegroupblend[3];
        if (e->state_current.skeletonobject.model && e->state_current.skeletonobject.relativetransforms)
            e->render.skeleton = &e->state_current.skeletonobject;
    }
    else if (e->render.framegroupblend[0].frame == frame)
    {
        // update frame lerp fraction
        e->render.framegroupblend[0].lerp = 1;
        e->render.framegroupblend[1].lerp = 0;
        if (e->render.framegroupblend[0].start > e->render.framegroupblend[1].start)
        {
            // make sure frame lerp won't last longer than 100ms
            // (this mainly helps with models that use framegroups and
            // switch between them infrequently)
            float maxdelta = cl_lerpanim_maxdelta_server.value;
            if(e->render.model)
            if(e->render.model->animscenes)
            if(e->render.model->animscenes[e->render.framegroupblend[0].frame].framecount > 1 || e->render.model->animscenes[e->render.framegroupblend[1].frame].framecount > 1)
                maxdelta = cl_lerpanim_maxdelta_framegroups.value;
            maxdelta = max(maxdelta, cl.mtime[0] - cl.mtime[1]);
            e->render.framegroupblend[0].lerp = (cl.time - e->render.framegroupblend[0].start) / min(e->render.framegroupblend[0].start - e->render.framegroupblend[1].start, maxdelta);
            e->render.framegroupblend[0].lerp = bound(0, e->render.framegroupblend[0].lerp, 1);
            e->render.framegroupblend[1].lerp = 1 - e->render.framegroupblend[0].lerp;
        }
    }
    else
    {
        // begin a new frame lerp
        e->render.framegroupblend[1] = e->render.framegroupblend[0];
        e->render.framegroupblend[1].lerp = 1;
        e->render.framegroupblend[0].frame = frame;
        e->render.framegroupblend[0].start = cl.time;
        e->render.framegroupblend[0].lerp = 0;
    }
 
    // set up the render matrix
    if (matrix)
    {
        // attached entity, this requires a matrix multiply (concat)
        // FIXME: e->render.scale should go away
        Matrix4x4_CreateFromQuakeEntity(&matrix2, origin[0], origin[1], origin[2], angles[0], angles[1], angles[2], e->render.scale);
        // concat the matrices to make the entity relative to its tag
        Matrix4x4_Concat(&e->render.matrix, matrix, &matrix2);
        // get the origin from the new matrix
        Matrix4x4_OriginFromMatrix(&e->render.matrix, origin);
    }
    else
    {
        // unattached entities are faster to process
        Matrix4x4_CreateFromQuakeEntity(&e->render.matrix, origin[0], origin[1], origin[2], angles[0], angles[1], angles[2], e->render.scale);
    }
 
    // tenebrae's sprites are all additive mode (weird)
    if (gamemode == GAME_TENEBRAE && e->render.model && e->render.model->type == mod_sprite)
        e->render.flags |= RENDER_ADDITIVE;
    // player model is only shown with chase_active on
    if (e->state_current.number == cl.viewentity)
        e->render.flags |= RENDER_EXTERIORMODEL;
    // either fullbright or lit
    if(!r_fullbright.integer)
    {
        if (!(e->render.effects & EF_FULLBRIGHT))
            e->render.flags |= RENDER_LIGHT;
    }
    // hide player shadow during intermission or nehahra movie
    if (!(e->render.effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
     && (e->render.alpha >= 1)
     && !(e->render.flags & RENDER_VIEWMODEL)
     && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
        e->render.flags |= RENDER_SHADOW;
    if (e->render.flags & RENDER_VIEWMODEL)
        e->render.flags |= RENDER_NOSELFSHADOW;
    if (e->render.effects & EF_NOSELFSHADOW)
        e->render.flags |= RENDER_NOSELFSHADOW;
    if (e->render.effects & EF_NODEPTHTEST)
        e->render.flags |= RENDER_NODEPTHTEST;
    if (e->render.effects & EF_ADDITIVE)
        e->render.flags |= RENDER_ADDITIVE;
    if (e->render.effects & EF_DOUBLESIDED)
        e->render.flags |= RENDER_DOUBLESIDED;
    if (e->render.effects & EF_DYNAMICMODELLIGHT)
        e->render.flags |= RENDER_DYNAMICMODELLIGHT;
 
    // make the other useful stuff
    e->render.allowdecals = true;
    CL_UpdateRenderEntity(&e->render);
}
 
// creates light and trails from an entity
static void CL_UpdateNetworkEntityTrail(entity_t *e)
{
    effectnameindex_t trailtype;
    vec3_t origin;
 
    // bmodels are treated specially since their origin is usually '0 0 0' and
    // their actual geometry is far from '0 0 0'
    if (e->render.model && e->render.model->soundfromcenter)
    {
        vec3_t o;
        VectorMAM(0.5f, e->render.model->normalmins, 0.5f, e->render.model->normalmaxs, o);
        Matrix4x4_Transform(&e->render.matrix, o, origin);
    }
    else
        Matrix4x4_OriginFromMatrix(&e->render.matrix, origin);
 
    // handle particle trails and such effects now that we know where this
    // entity is in the world...
    trailtype = EFFECT_NONE;
    // LadyHavoc: if the entity has no effects, don't check each
    if (e->render.effects & (EF_BRIGHTFIELD | EF_FLAME | EF_STARDUST))
    {
        if (e->render.effects & EF_BRIGHTFIELD)
        {
            if (IS_NEXUIZ_DERIVED(gamemode))
                trailtype = EFFECT_TR_NEXUIZPLASMA;
            else
                CL_EntityParticles(e);
        }
        if (e->render.effects & EF_FLAME)
            CL_ParticleTrail(EFFECT_EF_FLAME, bound(0, cl.time - cl.oldtime, 0.1), origin, origin, vec3_origin, vec3_origin, NULL, 0, false, true, NULL, NULL, 1);
        if (e->render.effects & EF_STARDUST)
            CL_ParticleTrail(EFFECT_EF_STARDUST, bound(0, cl.time - cl.oldtime, 0.1), origin, origin, vec3_origin, vec3_origin, NULL, 0, false, true, NULL, NULL, 1);
    }
    if (e->render.internaleffects & (INTEF_FLAG1QW | INTEF_FLAG2QW))
    {
        // these are only set on player entities
        CL_AddQWCTFFlagModel(e, (e->render.internaleffects & INTEF_FLAG2QW) != 0);
    }
    // muzzleflash fades over time
    if (e->persistent.muzzleflash > 0)
        e->persistent.muzzleflash -= bound(0, cl.time - cl.oldtime, 0.1) * 20;
    // LadyHavoc: if the entity has no effects, don't check each
    if (e->render.effects && !(e->render.flags & RENDER_VIEWMODEL))
    {
        if (e->render.effects & EF_GIB)
            trailtype = EFFECT_TR_BLOOD;
        else if (e->render.effects & EF_ZOMGIB)
            trailtype = EFFECT_TR_SLIGHTBLOOD;
        else if (e->render.effects & EF_TRACER)
            trailtype = EFFECT_TR_WIZSPIKE;
        else if (e->render.effects & EF_TRACER2)
            trailtype = EFFECT_TR_KNIGHTSPIKE;
        else if (e->render.effects & EF_ROCKET)
            trailtype = EFFECT_TR_ROCKET;
        else if (e->render.effects & EF_GRENADE)
        {
            // LadyHavoc: e->render.alpha == -1 is for Nehahra dem compatibility (cigar smoke)
            trailtype = e->render.alpha == -1 ? EFFECT_TR_NEHAHRASMOKE : EFFECT_TR_GRENADE;
        }
        else if (e->render.effects & EF_TRACER3)
            trailtype = EFFECT_TR_VORESPIKE;
    }
    // do trails
    if (e->render.flags & RENDER_GLOWTRAIL)
        trailtype = EFFECT_TR_GLOWTRAIL;
    if (e->state_current.traileffectnum)
        trailtype = (effectnameindex_t)e->state_current.traileffectnum;
    // check if a trail is allowed (it is not after a teleport for example)
    if (trailtype && e->persistent.trail_allowed)
    {
        float len;
        vec3_t vel;
        VectorSubtract(e->state_current.origin, e->state_previous.origin, vel);
        len = e->state_current.time - e->state_previous.time;
        if (len > 0)
            len = 1.0f / len;
        VectorScale(vel, len, vel);
        // pass time as count so that trails that are time based (such as an emitter) will emit properly as long as they don't use trailspacing
        CL_ParticleTrail(trailtype, bound(0, cl.time - cl.oldtime, 0.1), e->persistent.trail_origin, origin, vel, vel, e, e->state_current.glowcolor, false, true, NULL, NULL, 1);
    }
    // now that the entity has survived one trail update it is allowed to
    // leave a real trail on later frames
    e->persistent.trail_allowed = true;
    VectorCopy(origin, e->persistent.trail_origin);
}
 
 
/*
===============
CL_UpdateViewEntities
===============
*/
void CL_UpdateViewEntities(void)
{
    int i;
    // update any RENDER_VIEWMODEL entities to use the new view matrix
    for (i = 1;i < cl.num_entities;i++)
    {
        if (cl.entities_active[i])
        {
            entity_t *ent = cl.entities + i;
            if ((ent->render.flags & RENDER_VIEWMODEL) || ent->state_current.tagentity)
                CL_UpdateNetworkEntity(ent, 32, true);
        }
    }
    // and of course the engine viewmodel needs updating as well
    CL_UpdateNetworkEntity(&cl.viewent, 32, true);
}
 
/*
===============
CL_UpdateNetworkCollisionEntities
===============
*/
static void CL_UpdateNetworkCollisionEntities(void)
{
    entity_t *ent;
    int i;
 
    // start on the entity after the world
    cl.num_brushmodel_entities = 0;
    for (i = cl.maxclients + 1;i < cl.num_entities;i++)
    {
        if (cl.entities_active[i])
        {
            ent = cl.entities + i;
            if (ent->state_current.active && ent->render.model && ent->render.model->name[0] == '*' && ent->render.model->TraceBox)
            {
                // do not interpolate the bmodels for this
                CL_UpdateNetworkEntity(ent, 32, false);
                cl.brushmodel_entities[cl.num_brushmodel_entities++] = i;
            }
        }
    }
}
 
/*
===============
CL_UpdateNetworkEntities
===============
*/
static void CL_UpdateNetworkEntities(void)
{
    entity_t *ent;
    int i;
 
    // start on the entity after the world
    for (i = 1;i < cl.num_entities;i++)
    {
        if (cl.entities_active[i])
        {
            ent = cl.entities + i;
            if (ent->state_current.active)
            {
                CL_UpdateNetworkEntity(ent, 32, true);
                // view models should never create light/trails
                if (!(ent->render.flags & RENDER_VIEWMODEL))
                    CL_UpdateNetworkEntityTrail(ent);
            }
            else
            {
                R_DecalSystem_Reset(&ent->render.decalsystem);
                cl.entities_active[i] = false;
            }
        }
    }
}
 
static void CL_UpdateViewModel(void)
{
    entity_t *ent;
    ent = &cl.viewent;
    ent->state_previous = ent->state_current;
    ent->state_current = defaultstate;
    ent->state_current.time = cl.time;
    ent->state_current.number = (unsigned short)-1;
    ent->state_current.active = true;
    ent->state_current.modelindex = cl.stats[STAT_WEAPON];
    ent->state_current.frame = cl.stats[STAT_WEAPONFRAME];
    ent->state_current.flags = RENDER_VIEWMODEL;
    if ((cl.stats[STAT_HEALTH] <= 0 && cl_deathnoviewmodel.integer) || cl.intermission)
        ent->state_current.modelindex = 0;
    else if (cl.stats[STAT_ITEMS] & IT_INVISIBILITY)
    {
        if (gamemode == GAME_TRANSFUSION)
            ent->state_current.alpha = 128;
        else
            ent->state_current.modelindex = 0;
    }
    ent->state_current.alpha = cl.entities[cl.viewentity].state_current.alpha;
    ent->state_current.effects = EF_NOSHADOW | (cl.entities[cl.viewentity].state_current.effects & (EF_ADDITIVE | EF_FULLBRIGHT | EF_NODEPTHTEST | EF_NOGUNBOB));
 
    // reset animation interpolation on weaponmodel if model changed
    if (ent->state_previous.modelindex != ent->state_current.modelindex)
    {
        ent->render.framegroupblend[0].frame = ent->render.framegroupblend[1].frame = ent->state_current.frame;
        ent->render.framegroupblend[0].start = ent->render.framegroupblend[1].start = cl.time;
        ent->render.framegroupblend[0].lerp = 1;ent->render.framegroupblend[1].lerp = 0;
    }
    CL_UpdateNetworkEntity(ent, 32, true);
}
 
// note this is a recursive function, but it can never get in a runaway loop (because of the delayedlink flags)
static void CL_LinkNetworkEntity(entity_t *e)
{
    effectnameindex_t trailtype;
    vec3_t origin;
    vec3_t dlightcolor;
    vec_t dlightradius;
    char vabuf[1024];
 
    // skip inactive entities and world
    if (!e->state_current.active || e == cl.entities)
        return;
    if (e->state_current.tagentity)
    {
        // if the tag entity is currently impossible, skip it
        if (e->state_current.tagentity >= cl.num_entities)
            return;
        // if the tag entity is inactive, skip it
        if (!cl.entities[e->state_current.tagentity].state_current.active)
        {
            if(!cl.csqc_server2csqcentitynumber[e->state_current.tagentity])
                return;
            if(!cl.csqcrenderentities[cl.csqc_server2csqcentitynumber[e->state_current.tagentity]].entitynumber)
                return;
            // if we get here, it's properly csqc networked and attached
        }
    }
 
    // create entity dlights associated with this entity
    if (e->render.model && e->render.model->soundfromcenter)
    {
        // bmodels are treated specially since their origin is usually '0 0 0'
        vec3_t o;
        VectorMAM(0.5f, e->render.model->normalmins, 0.5f, e->render.model->normalmaxs, o);
        Matrix4x4_Transform(&e->render.matrix, o, origin);
    }
    else
        Matrix4x4_OriginFromMatrix(&e->render.matrix, origin);
    trailtype = EFFECT_NONE;
    dlightradius = 0;
    dlightcolor[0] = 0;
    dlightcolor[1] = 0;
    dlightcolor[2] = 0;
    // LadyHavoc: if the entity has no effects, don't check each
    if (e->render.effects & (EF_BRIGHTFIELD | EF_DIMLIGHT | EF_BRIGHTLIGHT | EF_RED | EF_BLUE | EF_FLAME | EF_STARDUST))
    {
        if (e->render.effects & EF_BRIGHTFIELD)
        {
            if (IS_NEXUIZ_DERIVED(gamemode))
                trailtype = EFFECT_TR_NEXUIZPLASMA;
        }
        if (e->render.effects & EF_DIMLIGHT)
        {
            dlightradius = max(dlightradius, 200);
            dlightcolor[0] += 1.50f;
            dlightcolor[1] += 1.50f;
            dlightcolor[2] += 1.50f;
        }
        if (e->render.effects & EF_BRIGHTLIGHT)
        {
            dlightradius = max(dlightradius, 400);
            dlightcolor[0] += 3.00f;
            dlightcolor[1] += 3.00f;
            dlightcolor[2] += 3.00f;
        }
        // LadyHavoc: more effects
        if (e->render.effects & EF_RED) // red
        {
            dlightradius = max(dlightradius, 200);
            dlightcolor[0] += 1.50f;
            dlightcolor[1] += 0.15f;
            dlightcolor[2] += 0.15f;
        }
        if (e->render.effects & EF_BLUE) // blue
        {
            dlightradius = max(dlightradius, 200);
            dlightcolor[0] += 0.15f;
            dlightcolor[1] += 0.15f;
            dlightcolor[2] += 1.50f;
        }
        if (e->render.effects & EF_FLAME)
            CL_ParticleTrail(EFFECT_EF_FLAME, 1, origin, origin, vec3_origin, vec3_origin, NULL, 0, true, false, NULL, NULL, 1);
        if (e->render.effects & EF_STARDUST)
            CL_ParticleTrail(EFFECT_EF_STARDUST, 1, origin, origin, vec3_origin, vec3_origin, NULL, 0, true, false, NULL, NULL, 1);
    }
    // muzzleflash fades over time, and is offset a bit
    if (e->persistent.muzzleflash > 0 && r_refdef.scene.numlights < MAX_DLIGHTS)
    {
        vec3_t v2;
        vec3_t color;
        trace_t trace;
        matrix4x4_t tempmatrix;
        Matrix4x4_Transform(&e->render.matrix, muzzleflashorigin, v2);
        trace = CL_TraceLine(origin, v2, MOVE_NOMONSTERS, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_SKY, 0, 0, collision_extendmovelength.value, true, false, NULL, false, false);
        Matrix4x4_Normalize(&tempmatrix, &e->render.matrix);
        Matrix4x4_SetOrigin(&tempmatrix, trace.endpos[0], trace.endpos[1], trace.endpos[2]);
        Matrix4x4_Scale(&tempmatrix, 150, 1);
        VectorSet(color, e->persistent.muzzleflash * 4.0f, e->persistent.muzzleflash * 4.0f, e->persistent.muzzleflash * 4.0f);
        R_RTLight_Update(&r_refdef.scene.templights[r_refdef.scene.numlights], false, &tempmatrix, color, -1, NULL, true, 0, 0.25, 0, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
        r_refdef.scene.lights[r_refdef.scene.numlights] = &r_refdef.scene.templights[r_refdef.scene.numlights];r_refdef.scene.numlights++;
    }
    // LadyHavoc: if the model has no flags, don't check each
    if (e->render.model && e->render.effects && !(e->render.flags & RENDER_VIEWMODEL))
    {
        if (e->render.effects & EF_GIB)
            trailtype = EFFECT_TR_BLOOD;
        else if (e->render.effects & EF_ZOMGIB)
            trailtype = EFFECT_TR_SLIGHTBLOOD;
        else if (e->render.effects & EF_TRACER)
            trailtype = EFFECT_TR_WIZSPIKE;
        else if (e->render.effects & EF_TRACER2)
            trailtype = EFFECT_TR_KNIGHTSPIKE;
        else if (e->render.effects & EF_ROCKET)
            trailtype = EFFECT_TR_ROCKET;
        else if (e->render.effects & EF_GRENADE)
        {
            // LadyHavoc: e->render.alpha == -1 is for Nehahra dem compatibility (cigar smoke)
            trailtype = e->render.alpha == -1 ? EFFECT_TR_NEHAHRASMOKE : EFFECT_TR_GRENADE;
        }
        else if (e->render.effects & EF_TRACER3)
            trailtype = EFFECT_TR_VORESPIKE;
    }
    // LadyHavoc: customizable glow
    if (e->state_current.glowsize)
    {
        // * 4 for the expansion from 0-255 to 0-1023 range,
        // / 255 to scale down byte colors
        dlightradius = max(dlightradius, e->state_current.glowsize * 4);
        VectorMA(dlightcolor, (1.0f / 255.0f), palette_rgb[e->state_current.glowcolor], dlightcolor);
    }
    // custom rtlight
    if ((e->state_current.lightpflags & PFLAGS_FULLDYNAMIC) && r_refdef.scene.numlights < MAX_DLIGHTS)
    {
        matrix4x4_t dlightmatrix;
        vec4_t light;
        VectorScale(e->state_current.light, (1.0f / 256.0f), light);
        light[3] = e->state_current.light[3];
        if (light[0] == 0 && light[1] == 0 && light[2] == 0)
            VectorSet(light, 1, 1, 1);
        if (light[3] == 0)
            light[3] = 350;
        // FIXME: add ambient/diffuse/specular scales as an extension ontop of TENEBRAE_GFX_DLIGHTS?
        Matrix4x4_Normalize(&dlightmatrix, &e->render.matrix);
        Matrix4x4_Scale(&dlightmatrix, light[3], 1);
        R_RTLight_Update(&r_refdef.scene.templights[r_refdef.scene.numlights], false, &dlightmatrix, light, e->state_current.lightstyle, e->state_current.skin > 0 ? va(vabuf, sizeof(vabuf), "cubemaps/%i", e->state_current.skin) : NULL, !(e->state_current.lightpflags & PFLAGS_NOSHADOW), (e->state_current.lightpflags & PFLAGS_CORONA) != 0, 0.25, 0, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
        r_refdef.scene.lights[r_refdef.scene.numlights] = &r_refdef.scene.templights[r_refdef.scene.numlights];r_refdef.scene.numlights++;
    }
    // make the glow dlight
    else if (dlightradius > 0 && (dlightcolor[0] || dlightcolor[1] || dlightcolor[2]) && !(e->render.flags & RENDER_VIEWMODEL) && r_refdef.scene.numlights < MAX_DLIGHTS)
    {
        matrix4x4_t dlightmatrix;
        Matrix4x4_Normalize(&dlightmatrix, &e->render.matrix);
        // hack to make glowing player light shine on their gun
        //if (e->state_current.number == cl.viewentity/* && !chase_active.integer*/)
        //  Matrix4x4_AdjustOrigin(&dlightmatrix, 0, 0, 30);
        Matrix4x4_Scale(&dlightmatrix, dlightradius, 1);
        R_RTLight_Update(&r_refdef.scene.templights[r_refdef.scene.numlights], false, &dlightmatrix, dlightcolor, -1, NULL, true, 1, 0.25, 0, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
        r_refdef.scene.lights[r_refdef.scene.numlights] = &r_refdef.scene.templights[r_refdef.scene.numlights];r_refdef.scene.numlights++;
    }
    // do trail light
    if (e->render.flags & RENDER_GLOWTRAIL)
        trailtype = EFFECT_TR_GLOWTRAIL;
    if (e->state_current.traileffectnum)
        trailtype = (effectnameindex_t)e->state_current.traileffectnum;
    if (trailtype)
        CL_ParticleTrail(trailtype, 1, origin, origin, vec3_origin, vec3_origin, NULL, e->state_current.glowcolor, true, false, NULL, NULL, 1);
 
    // don't show entities with no modelindex (note: this still shows
    // entities which have a modelindex that resolved to a NULL model)
    if (e->render.model && !(e->render.effects & EF_NODRAW) && r_refdef.scene.numentities < r_refdef.scene.maxentities)
        r_refdef.scene.entities[r_refdef.scene.numentities++] = &e->render;
    //if (cl.viewentity && e->state_current.number == cl.viewentity)
    //  Matrix4x4_Print(&e->render.matrix);
}
 
static void CL_RelinkWorld(void)
{
    entity_t *ent = &cl.entities[0];
    // FIXME: this should be done at load
    ent->render.matrix = identitymatrix;
    ent->render.flags = RENDER_SHADOW;
    if (!r_fullbright.integer)
        ent->render.flags |= RENDER_LIGHT;
    VectorSet(ent->render.colormod, 1, 1, 1);
    VectorSet(ent->render.glowmod, 1, 1, 1);
    ent->render.allowdecals = true;
    CL_UpdateRenderEntity(&ent->render);
    r_refdef.scene.worldentity = &ent->render;
    r_refdef.scene.worldmodel = cl.worldmodel;
 
    // if the world is q2bsp, animate the textures
    if (ent->render.model && ent->render.model->brush.isq2bsp)
        ent->render.framegroupblend[0].frame = (int)(cl.time * 2.0f);
}
 
static void CL_RelinkStaticEntities(void)
{
    int i;
    entity_t *e;
    for (i = 0, e = cl.static_entities;i < cl.num_static_entities && r_refdef.scene.numentities < r_refdef.scene.maxentities;i++, e++)
    {
        e->render.flags = 0;
        // if the model was not loaded when the static entity was created we
        // need to re-fetch the model pointer
        e->render.model = CL_GetModelByIndex(e->state_baseline.modelindex);
        // either fullbright or lit
        if(!r_fullbright.integer)
        {
            if (!(e->render.effects & EF_FULLBRIGHT))
                e->render.flags |= RENDER_LIGHT;
        }
        // hide player shadow during intermission or nehahra movie
        if (!(e->render.effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST)) && (e->render.alpha >= 1))
            e->render.flags |= RENDER_SHADOW;
        VectorSet(e->render.colormod, 1, 1, 1);
        VectorSet(e->render.glowmod, 1, 1, 1);
        VM_FrameBlendFromFrameGroupBlend(e->render.frameblend, e->render.framegroupblend, e->render.model, cl.time);
        e->render.allowdecals = true;
        CL_UpdateRenderEntity(&e->render);
        r_refdef.scene.entities[r_refdef.scene.numentities++] = &e->render;
    }
}
 
/*
===============
CL_RelinkEntities
===============
*/
static void CL_RelinkNetworkEntities(void)
{
    entity_t *ent;
    int i;
 
    // start on the entity after the world
    for (i = 1;i < cl.num_entities;i++)
    {
        if (cl.entities_active[i])
        {
            ent = cl.entities + i;
            if (ent->state_current.active)
                CL_LinkNetworkEntity(ent);
            else
                cl.entities_active[i] = false;
        }
    }
}
 
static void CL_RelinkEffects(void)
{
    int i, intframe;
    cl_effect_t *e;
    entity_render_t *entrender;
    float frame;
 
    for (i = 0, e = cl.effects;i < cl.num_effects;i++, e++)
    {
        if (e->active)
        {
            frame = (cl.time - e->starttime) * e->framerate + e->startframe;
            intframe = (int)frame;
            if (intframe < 0 || intframe >= e->endframe)
            {
                memset(e, 0, sizeof(*e));
                while (cl.num_effects > 0 && !cl.effects[cl.num_effects - 1].active)
                    cl.num_effects--;
                continue;
            }
 
            if (intframe != e->frame)
            {
                e->frame = intframe;
                e->frame1time = e->frame2time;
                e->frame2time = cl.time;
            }
 
            // if we're drawing effects, get a new temp entity
            // (NewTempEntity adds it to the render entities list for us)
            if (r_draweffects.integer && (entrender = CL_NewTempEntity(e->starttime)))
            {
                // interpolation stuff
                entrender->framegroupblend[0].frame = intframe;
                entrender->framegroupblend[0].lerp = 1 - frame - intframe;
                entrender->framegroupblend[0].start = e->frame1time;
                if (intframe + 1 >= e->endframe)
                {
                    entrender->framegroupblend[1].frame = 0; // disappear
                    entrender->framegroupblend[1].lerp = 0;
                    entrender->framegroupblend[1].start = 0;
                }
                else
                {
                    entrender->framegroupblend[1].frame = intframe + 1;
                    entrender->framegroupblend[1].lerp = frame - intframe;
                    entrender->framegroupblend[1].start = e->frame2time;
                }
 
                // normal stuff
                entrender->model = e->model;
                entrender->alpha = 1;
                VectorSet(entrender->colormod, 1, 1, 1);
                VectorSet(entrender->glowmod, 1, 1, 1);
 
                Matrix4x4_CreateFromQuakeEntity(&entrender->matrix, e->origin[0], e->origin[1], e->origin[2], 0, 0, 0, 1);
                CL_UpdateRenderEntity(entrender);
            }
        }
    }
}
 
void CL_Beam_CalculatePositions(const beam_t *b, vec3_t start, vec3_t end)
{
    VectorCopy(b->start, start);
    VectorCopy(b->end, end);
 
    // if coming from the player, update the start position
    if (b->entity == cl.viewentity)
    {
        if (cl_beams_quakepositionhack.integer && !chase_active.integer)
        {
            // LadyHavoc: this is a stupid hack from Quake that makes your
            // lightning appear to come from your waist and cover less of your
            // view
            // in Quake this hack was applied to all players (causing the
            // infamous crotch-lightning), but in darkplaces and QuakeWorld it
            // only applies to your own lightning, and only in first person
            Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, start);
        }
        if (cl_beams_instantaimhack.integer)
        {
            vec3_t dir, localend;
            vec_t len;
            // LadyHavoc: this updates the beam direction to match your
            // viewangles
            VectorSubtract(end, start, dir);
            len = VectorLength(dir);
            VectorNormalize(dir);
            VectorSet(localend, len, 0, 0);
            Matrix4x4_Transform(&r_refdef.view.matrix, localend, end);
        }
    }
}
 
void CL_RelinkBeams(void)
{
    int i;
    beam_t *b;
    vec3_t dist, org, start, end;
    float d;
    entity_render_t *entrender;
    double yaw, pitch;
    float forward;
    matrix4x4_t tempmatrix;
 
    for (i = 0, b = cl.beams;i < cl.num_beams;i++, b++)
    {
        if (!b->model)
            continue;
        if (b->endtime < cl.time)
        {
            b->model = NULL;
            continue;
        }
 
        CL_Beam_CalculatePositions(b, start, end);
 
        if (b->lightning)
        {
            if (cl_beams_lightatend.integer && r_refdef.scene.numlights < MAX_DLIGHTS)
            {
                // FIXME: create a matrix from the beam start/end orientation
                vec3_t dlightcolor;
                VectorSet(dlightcolor, 0.3, 0.7, 1);
                Matrix4x4_CreateFromQuakeEntity(&tempmatrix, end[0], end[1], end[2], 0, 0, 0, 200);
                R_RTLight_Update(&r_refdef.scene.templights[r_refdef.scene.numlights], false, &tempmatrix, dlightcolor, -1, NULL, true, 1, 0.25, 1, 0, 0, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
                r_refdef.scene.lights[r_refdef.scene.numlights] = &r_refdef.scene.templights[r_refdef.scene.numlights];r_refdef.scene.numlights++;
            }
            if (cl_beams_polygons.integer)
            {
                CL_Beam_AddPolygons(b);
                continue;
            }
        }
 
        // calculate pitch and yaw
        // (this is similar to the QuakeC builtin function vectoangles)
        VectorSubtract(end, start, dist);
        if (dist[1] == 0 && dist[0] == 0)
        {
            yaw = 0;
            if (dist[2] > 0)
                pitch = 90;
            else
                pitch = 270;
        }
        else
        {
            yaw = atan2(dist[1], dist[0]) * 180 / M_PI;
            if (yaw < 0)
                yaw += 360;
 
            forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
            pitch = atan2(dist[2], forward) * 180 / M_PI;
            if (pitch < 0)
                pitch += 360;
        }
 
        // add new entities for the lightning
        VectorCopy (start, org);
        d = VectorNormalizeLength(dist);
        while (d > 0)
        {
            entrender = CL_NewTempEntity (0);
            if (!entrender)
                return;
            entrender->model = b->model;
            Matrix4x4_CreateFromQuakeEntity(&entrender->matrix, org[0], org[1], org[2], -pitch, yaw, lhrandom(0, 360), 1);
            CL_UpdateRenderEntity(entrender);
            VectorMA(org, 30, dist, org);
            d -= 30;
        }
    }
 
    while (cl.num_beams > 0 && !cl.beams[cl.num_beams - 1].model)
        cl.num_beams--;
}
 
static void CL_RelinkQWNails(void)
{
    int i;
    vec_t *v;
    entity_render_t *entrender;
 
    for (i = 0;i < cl.qw_num_nails;i++)
    {
        v = cl.qw_nails[i];
 
        // if we're drawing effects, get a new temp entity
        // (NewTempEntity adds it to the render entities list for us)
        if (!(entrender = CL_NewTempEntity(0)))
            continue;
 
        // normal stuff
        entrender->model = CL_GetModelByIndex(cl.qw_modelindex_spike);
        entrender->alpha = 1;
        VectorSet(entrender->colormod, 1, 1, 1);
        VectorSet(entrender->glowmod, 1, 1, 1);
 
        Matrix4x4_CreateFromQuakeEntity(&entrender->matrix, v[0], v[1], v[2], v[3], v[4], v[5], 1);
        CL_UpdateRenderEntity(entrender);
    }
}
 
static void CL_LerpPlayer(float frac)
{
    int i;
 
    cl.viewzoom = cl.mviewzoom[1] + frac * (cl.mviewzoom[0] - cl.mviewzoom[1]);
    for (i = 0;i < 3;i++)
    {
        cl.punchangle[i] = cl.mpunchangle[1][i] + frac * (cl.mpunchangle[0][i] - cl.mpunchangle[1][i]);
        cl.punchvector[i] = cl.mpunchvector[1][i] + frac * (cl.mpunchvector[0][i] - cl.mpunchvector[1][i]);
        cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
    }
 
    // interpolate the angles if playing a demo or spectating someone
    if (cls.demoplayback || cl.fixangle[0])
    {
        for (i = 0;i < 3;i++)
        {
            float d = cl.mviewangles[0][i] - cl.mviewangles[1][i];
            if (d > 180)
                d -= 360;
            else if (d < -180)
                d += 360;
            cl.viewangles[i] = cl.mviewangles[1][i] + frac * d;
        }
    }
}
 
void CSQC_RelinkAllEntities (int drawmask)
{
    // link stuff
    CL_RelinkWorld();
    // the scene mesh is added first for easier debugging (consistent spot in render entities list)
    CL_MeshEntities_Scene_AddRenderEntity();
    CL_RelinkStaticEntities();
    CL_RelinkBeams();
    CL_RelinkEffects();
    CL_RelinkLightFlashes();
 
    // link stuff
    if (drawmask & ENTMASK_ENGINE)
    {
        CL_RelinkNetworkEntities();
        if (drawmask & ENTMASK_ENGINEVIEWMODELS)
            CL_LinkNetworkEntity(&cl.viewent); // link gun model
        CL_RelinkQWNails();
    }
 
    // update view blend
    V_CalcViewBlend();
}
 
/*
===============
CL_UpdateWorld
 
Update client game world for a new frame
===============
*/
void CL_UpdateWorld(void)
{
    r_refdef.scene.numentities = 0;
    r_refdef.scene.numlights = 0;
    r_refdef.view.matrix = identitymatrix;
    r_refdef.view.quality = 1;
        
    cl.num_brushmodel_entities = 0;
 
    if (cls.state == ca_connected && cls.signon == SIGNONS)
    {
        // prepare for a new frame
        CL_LerpPlayer(CL_LerpPoint());
        CL_DecayLightFlashes();
        CL_ClearTempEntities();
        V_DriftPitch();
        V_FadeViewFlashs();
 
        // if prediction is enabled we have to update all the collidable
        // network entities before the prediction code can be run
        CL_UpdateNetworkCollisionEntities();
 
        // now update the player prediction
        CL_ClientMovement_Replay();
 
        // update the player entity (which may be predicted)
        CL_UpdateNetworkEntity(cl.entities + cl.viewentity, 32, true);
 
        // now update the view (which depends on that player entity)
        V_CalcRefdef();
 
        // now update all the network entities and create particle trails
        // (some entities may depend on the view)
        CL_UpdateNetworkEntities();
 
        // update the engine-based viewmodel
        CL_UpdateViewModel();
 
        // when csqc is loaded, it will call this in CSQC_UpdateView
        if (!CLVM_prog->loaded || CLVM_prog->flag & PRVM_CSQC_SIMPLE)
        {
            // clear the CL_Mesh_Scene() used for some engine effects
            CL_MeshEntities_Scene_Clear();
            // add engine entities and effects
            CSQC_RelinkAllEntities(ENTMASK_ENGINE | ENTMASK_ENGINEVIEWMODELS);
        }
 
        // decals, particles, and explosions will be updated during rneder
    }
 
    r_refdef.scene.time = cl.time;
}
 
/*
======================
CL_Fog_f
======================
*/
static void CL_Fog_f(cmd_state_t *cmd)
{
    if (Cmd_Argc (cmd) == 1)
    {
        Con_Printf("\"fog\" is \"%f %f %f %f %f %f %f %f %f\"\n", r_refdef.fog_density, r_refdef.fog_red, r_refdef.fog_green, r_refdef.fog_blue, r_refdef.fog_alpha, r_refdef.fog_start, r_refdef.fog_end, r_refdef.fog_height, r_refdef.fog_fadedepth);
        return;
    }
    FOG_clear(); // so missing values get good defaults
    if(Cmd_Argc(cmd) > 1)
        r_refdef.fog_density = atof(Cmd_Argv(cmd, 1));
    if(Cmd_Argc(cmd) > 2)
        r_refdef.fog_red = atof(Cmd_Argv(cmd, 2));
    if(Cmd_Argc(cmd) > 3)
        r_refdef.fog_green = atof(Cmd_Argv(cmd, 3));
    if(Cmd_Argc(cmd) > 4)
        r_refdef.fog_blue = atof(Cmd_Argv(cmd, 4));
    if(Cmd_Argc(cmd) > 5)
        r_refdef.fog_alpha = atof(Cmd_Argv(cmd, 5));
    if(Cmd_Argc(cmd) > 6)
        r_refdef.fog_start = atof(Cmd_Argv(cmd, 6));
    if(Cmd_Argc(cmd) > 7)
        r_refdef.fog_end = atof(Cmd_Argv(cmd, 7));
    if(Cmd_Argc(cmd) > 8)
        r_refdef.fog_height = atof(Cmd_Argv(cmd, 8));
    if(Cmd_Argc(cmd) > 9)
        r_refdef.fog_fadedepth = atof(Cmd_Argv(cmd, 9));
}
 
/*
======================
CL_FogHeightTexture_f
======================
*/
static void CL_Fog_HeightTexture_f(cmd_state_t *cmd)
{
    if (Cmd_Argc (cmd) < 11)
    {
        Con_Printf("\"fog_heighttexture\" is \"%f %f %f %f %f %f %f %f %f %s\"\n", r_refdef.fog_density, r_refdef.fog_red, r_refdef.fog_green, r_refdef.fog_blue, r_refdef.fog_alpha, r_refdef.fog_start, r_refdef.fog_end, r_refdef.fog_height, r_refdef.fog_fadedepth, r_refdef.fog_height_texturename);
        return;
    }
    FOG_clear(); // so missing values get good defaults
    r_refdef.fog_density = atof(Cmd_Argv(cmd, 1));
    r_refdef.fog_red = atof(Cmd_Argv(cmd, 2));
    r_refdef.fog_green = atof(Cmd_Argv(cmd, 3));
    r_refdef.fog_blue = atof(Cmd_Argv(cmd, 4));
    r_refdef.fog_alpha = atof(Cmd_Argv(cmd, 5));
    r_refdef.fog_start = atof(Cmd_Argv(cmd, 6));
    r_refdef.fog_end = atof(Cmd_Argv(cmd, 7));
    r_refdef.fog_height = atof(Cmd_Argv(cmd, 8));
    r_refdef.fog_fadedepth = atof(Cmd_Argv(cmd, 9));
    dp_strlcpy(r_refdef.fog_height_texturename, Cmd_Argv(cmd, 10), sizeof(r_refdef.fog_height_texturename));
}
 
 
/*
====================
CL_TimeRefresh_f
 
For program optimization
====================
*/
static void CL_TimeRefresh_f(cmd_state_t *cmd)
{
    int i;
    double timestart, timedelta;
 
    timestart = Sys_DirtyTime();
    for (i = 0;i < 128;i++)
    {
        Matrix4x4_CreateFromQuakeEntity(&r_refdef.view.matrix, r_refdef.view.origin[0], r_refdef.view.origin[1], r_refdef.view.origin[2], 0, i / 128.0 * 360.0, 0, 1);
        r_refdef.view.quality = 1;
        CL_UpdateScreen();
    }
    timedelta = Sys_DirtyTime() - timestart;
 
    Con_Printf("%f seconds (%f fps)\n", timedelta, 128/timedelta);
}
 
static void CL_AreaStats_f(cmd_state_t *cmd)
{
    World_PrintAreaStats(&cl.world, "client");
}
 
cl_locnode_t *CL_Locs_FindNearest(const vec3_t point)
{
    int i;
    cl_locnode_t *loc;
    cl_locnode_t *best;
    vec3_t nearestpoint;
    vec_t dist, bestdist;
    best = NULL;
    bestdist = 0;
    for (loc = cl.locnodes;loc;loc = loc->next)
    {
        for (i = 0;i < 3;i++)
            nearestpoint[i] = bound(loc->mins[i], point[i], loc->maxs[i]);
        dist = VectorDistance2(nearestpoint, point);
        if (bestdist > dist || !best)
        {
            bestdist = dist;
            best = loc;
            if (bestdist < 1)
                break;
        }
    }
    return best;
}
 
void CL_Locs_FindLocationName(char *buffer, size_t buffersize, vec3_t point)
{
    cl_locnode_t *loc;
    loc = CL_Locs_FindNearest(point);
    if (loc)
        dp_strlcpy(buffer, loc->name, buffersize);
    else
        dpsnprintf(buffer, buffersize, "LOC=%.0f:%.0f:%.0f", point[0], point[1], point[2]);
}
 
static void CL_Locs_FreeNode(cl_locnode_t *node)
{
    cl_locnode_t **pointer, **next;
    for (pointer = &cl.locnodes;*pointer;pointer = next)
    {
        next = &(*pointer)->next;
        if (*pointer == node)
        {
            *pointer = node->next;
            Mem_Free(node);
            return;
        }
    }
    Con_Printf("CL_Locs_FreeNode: no such node! (%p)\n", (void *)node);
}
 
static void CL_Locs_AddNode(vec3_t mins, vec3_t maxs, const char *name)
{
    cl_locnode_t *node, **pointer;
    int namelen;
    if (!name)
        name = "";
    namelen = (int)strlen(name);
    node = (cl_locnode_t *) Mem_Alloc(cls.levelmempool, sizeof(cl_locnode_t) + namelen + 1);
    VectorSet(node->mins, min(mins[0], maxs[0]), min(mins[1], maxs[1]), min(mins[2], maxs[2]));
    VectorSet(node->maxs, max(mins[0], maxs[0]), max(mins[1], maxs[1]), max(mins[2], maxs[2]));
    node->name = (char *)(node + 1);
    memcpy(node->name, name, namelen);
    node->name[namelen] = 0;
    // link it into the tail of the list to preserve the order
    for (pointer = &cl.locnodes;*pointer;pointer = &(*pointer)->next)
        ;
    *pointer = node;
}
 
static void CL_Locs_Add_f(cmd_state_t *cmd)
{
    vec3_t mins, maxs;
    if (Cmd_Argc(cmd) != 5 && Cmd_Argc(cmd) != 8)
    {
        Con_Printf("usage: %s x y z[ x y z] name\n", Cmd_Argv(cmd, 0));
        return;
    }
    mins[0] = atof(Cmd_Argv(cmd, 1));
    mins[1] = atof(Cmd_Argv(cmd, 2));
    mins[2] = atof(Cmd_Argv(cmd, 3));
    if (Cmd_Argc(cmd) == 8)
    {
        maxs[0] = atof(Cmd_Argv(cmd, 4));
        maxs[1] = atof(Cmd_Argv(cmd, 5));
        maxs[2] = atof(Cmd_Argv(cmd, 6));
        CL_Locs_AddNode(mins, maxs, Cmd_Argv(cmd, 7));
    }
    else
        CL_Locs_AddNode(mins, mins, Cmd_Argv(cmd, 4));
}
 
static void CL_Locs_RemoveNearest_f(cmd_state_t *cmd)
{
    cl_locnode_t *loc;
    loc = CL_Locs_FindNearest(r_refdef.view.origin);
    if (loc)
        CL_Locs_FreeNode(loc);
    else
        Con_Printf("no loc point or box found for your location\n");
}
 
static void CL_Locs_Clear_f(cmd_state_t *cmd)
{
    while (cl.locnodes)
        CL_Locs_FreeNode(cl.locnodes);
}
 
static void CL_Locs_Save_f(cmd_state_t *cmd)
{
    cl_locnode_t *loc;
    qfile_t *outfile;
    char locfilename[MAX_QPATH];
    char timestring[128];
 
    if (!cl.locnodes)
    {
        Con_Printf("No loc points/boxes exist!\n");
        return;
    }
    if (cls.state != ca_connected || !cl.worldmodel)
    {
        Con_Printf("No level loaded!\n");
        return;
    }
    dpsnprintf(locfilename, sizeof(locfilename), "%s.loc", cl.worldnamenoextension);
 
    outfile = FS_OpenRealFile(locfilename, "w", false);
    if (!outfile)
        return;
    // if any boxes are used then this is a proquake-format loc file, which
    // allows comments, so add some relevant information at the start
    for (loc = cl.locnodes;loc;loc = loc->next)
        if (!VectorCompare(loc->mins, loc->maxs))
            break;
    if (loc)
    {
        Sys_TimeString(timestring, sizeof(timestring), "%Y-%m-%d");
        FS_Printf(outfile, "// %s %s saved by %s\n// x,y,z,x,y,z,\"name\"\n\n", locfilename, timestring, engineversion);
        for (loc = cl.locnodes;loc;loc = loc->next)
            if (VectorCompare(loc->mins, loc->maxs))
                break;
        if (loc)
            Con_Printf(CON_WARN "Warning: writing loc file containing a mixture of qizmo-style points and proquake-style boxes may not work in qizmo or proquake!\n");
    }
    for (loc = cl.locnodes;loc;loc = loc->next)
    {
        if (VectorCompare(loc->mins, loc->maxs))
        {
            int len;
            const char *s;
            const char *in = loc->name;
            char name[MAX_INPUTLINE];
            for (len = 0;len < (int)sizeof(name) - 1 && *in;)
            {
                if (*in == ' ') {s = "$loc_name_separator";in++;}
                else if (!strncmp(in, "SSG", 3)) {s = "$loc_name_ssg";in += 3;}
                else if (!strncmp(in, "NG", 2)) {s = "$loc_name_ng";in += 2;}
                else if (!strncmp(in, "SNG", 3)) {s = "$loc_name_sng";in += 3;}
                else if (!strncmp(in, "GL", 2)) {s = "$loc_name_gl";in += 2;}
                else if (!strncmp(in, "RL", 2)) {s = "$loc_name_rl";in += 2;}
                else if (!strncmp(in, "LG", 2)) {s = "$loc_name_lg";in += 2;}
                else if (!strncmp(in, "GA", 2)) {s = "$loc_name_ga";in += 2;}
                else if (!strncmp(in, "YA", 2)) {s = "$loc_name_ya";in += 2;}
                else if (!strncmp(in, "RA", 2)) {s = "$loc_name_ra";in += 2;}
                else if (!strncmp(in, "MEGA", 4)) {s = "$loc_name_mh";in += 4;}
                else s = NULL;
                if (s)
                {
                    while (len < (int)sizeof(name) - 1 && *s)
                        name[len++] = *s++;
                    continue;
                }
                name[len++] = *in++;
            }
            name[len] = 0;
            FS_Printf(outfile, "%.0f %.0f %.0f %s\n", loc->mins[0]*8, loc->mins[1]*8, loc->mins[2]*8, name);
        }
        else
            FS_Printf(outfile, "%.1f,%.1f,%.1f,%.1f,%.1f,%.1f,\"%s\"\n", loc->mins[0], loc->mins[1], loc->mins[2], loc->maxs[0], loc->maxs[1], loc->maxs[2], loc->name);
    }
    FS_Close(outfile);
}
 
void CL_Locs_Reload_f(cmd_state_t *cmd)
{
    int i, linenumber, limit, len;
    const char *s;
    char *filedata, *text, *textend, *linestart, *linetext, *lineend;
    fs_offset_t filesize;
    vec3_t mins, maxs;
    char locfilename[MAX_QPATH];
    char name[MAX_INPUTLINE];
 
    if (cls.state != ca_connected || !cl.worldmodel)
    {
        Con_Printf("No level loaded!\n");
        return;
    }
 
    CL_Locs_Clear_f(cmd);
 
    // try maps/something.loc first (LadyHavoc: where I think they should be)
    dpsnprintf(locfilename, sizeof(locfilename), "%s.loc", cl.worldnamenoextension);
    filedata = (char *)FS_LoadFile(locfilename, cls.levelmempool, false, &filesize);
    if (!filedata)
    {
        // try proquake name as well (LadyHavoc: I hate path mangling)
        dpsnprintf(locfilename, sizeof(locfilename), "locs/%s.loc", cl.worldbasename);
        filedata = (char *)FS_LoadFile(locfilename, cls.levelmempool, false, &filesize);
        if (!filedata)
            return;
    }
    text = filedata;
    textend = filedata + filesize;
    for (linenumber = 1;text < textend;linenumber++)
    {
        linestart = text;
        for (;text < textend && *text != '\r' && *text != '\n';text++)
            ;
        lineend = text;
        if (text + 1 < textend && *text == '\r' && text[1] == '\n')
            text++;
        if (text < textend)
            text++;
        // trim trailing whitespace
        while (lineend > linestart && ISWHITESPACE(lineend[-1]))
            lineend--;
        // trim leading whitespace
        while (linestart < lineend && ISWHITESPACE(*linestart))
            linestart++;
        // check if this is a comment
        if (linestart + 2 <= lineend && !strncmp(linestart, "//", 2))
            continue;
        linetext = linestart;
        limit = 3;
        for (i = 0;i < limit;i++)
        {
            if (linetext >= lineend)
                break;
            // note: a missing number is interpreted as 0
            if (i < 3)
                mins[i] = atof(linetext);
            else
                maxs[i - 3] = atof(linetext);
            // now advance past the number
            while (linetext < lineend && !ISWHITESPACE(*linetext) && *linetext != ',')
                linetext++;
            // advance through whitespace
            if (linetext < lineend)
            {
                if (*linetext == ',')
                {
                    linetext++;
                    limit = 6;
                    // note: comma can be followed by whitespace
                }
                if (ISWHITESPACE(*linetext))
                {
                    // skip whitespace
                    while (linetext < lineend && ISWHITESPACE(*linetext))
                        linetext++;
                }
            }
        }
        // if this is a quoted name, remove the quotes
        if (i == 6)
        {
            if (linetext >= lineend || *linetext != '"')
                continue; // proquake location names are always quoted
            lineend--;
            linetext++;
            len = min(lineend - linetext, (int)sizeof(name) - 1);
            memcpy(name, linetext, len);
            name[len] = 0;
            // add the box to the list
            CL_Locs_AddNode(mins, maxs, name);
        }
        // if a point was parsed, it needs to be scaled down by 8 (since
        // point-based loc files were invented by a proxy which dealt
        // directly with quake protocol coordinates, which are *8), turn
        // it into a box
        else if (i == 3)
        {
            // interpret silly fuhquake macros
            for (len = 0;len < (int)sizeof(name) - 1 && linetext < lineend;)
            {
                if (*linetext == '$')
                {
                    if (linetext + 18 <= lineend && !strncmp(linetext, "$loc_name_separator", 19)) {s = " ";linetext += 19;}
                    else if (linetext + 13 <= lineend && !strncmp(linetext, "$loc_name_ssg", 13)) {s = "SSG";linetext += 13;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_ng", 12)) {s = "NG";linetext += 12;}
                    else if (linetext + 13 <= lineend && !strncmp(linetext, "$loc_name_sng", 13)) {s = "SNG";linetext += 13;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_gl", 12)) {s = "GL";linetext += 12;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_rl", 12)) {s = "RL";linetext += 12;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_lg", 12)) {s = "LG";linetext += 12;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_ga", 12)) {s = "GA";linetext += 12;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_ya", 12)) {s = "YA";linetext += 12;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_ra", 12)) {s = "RA";linetext += 12;}
                    else if (linetext + 12 <= lineend && !strncmp(linetext, "$loc_name_mh", 12)) {s = "MEGA";linetext += 12;}
                    else s = NULL;
                    if (s)
                    {
                        while (len < (int)sizeof(name) - 1 && *s)
                            name[len++] = *s++;
                        continue;
                    }
                }
                name[len++] = *linetext++;
            }
            name[len] = 0;
            // add the point to the list
            VectorScale(mins, (1.0 / 8.0), mins);
            CL_Locs_AddNode(mins, mins, name);
        }
        else
            continue;
    }
}
 
entity_t cl_meshentities[NUM_MESHENTITIES];
model_t cl_meshentitymodels[NUM_MESHENTITIES];
const char *cl_meshentitynames[NUM_MESHENTITIES] =
{
    "MESH_SCENE",
    "MESH_UI",
};
 
static void CL_MeshEntities_Restart(void)
{
    int i;
    entity_t *ent;
    for (i = 0; i < NUM_MESHENTITIES; i++)
    {
        ent = cl_meshentities + i;
        Mod_Mesh_Destroy(ent->render.model);
        Mod_Mesh_Create(ent->render.model, cl_meshentitynames[i]);
    }
}
 
static void CL_MeshEntities_Start(void)
{
    int i;
    entity_t *ent;
    for(i = 0; i < NUM_MESHENTITIES; i++)
    {
        ent = cl_meshentities + i;
        Mod_Mesh_Create(ent->render.model, cl_meshentitynames[i]);
    }
}
 
static void CL_MeshEntities_Shutdown(void)
{
    int i;
    entity_t *ent;
    for(i = 0; i < NUM_MESHENTITIES; i++)
    {
        ent = cl_meshentities + i;
        Mod_Mesh_Destroy(ent->render.model);
    }
}
 
void CL_MeshEntities_Init(void)
{
    int i;
    entity_t *ent;
    for (i = 0; i < NUM_MESHENTITIES; i++)
    {
        ent = cl_meshentities + i;
        ent->state_current.active = true;
        ent->render.model = cl_meshentitymodels + i;
        Mod_Mesh_Create(ent->render.model, cl_meshentitynames[i]);  
        ent->render.alpha = 1;
        ent->render.flags = RENDER_SHADOW | RENDER_LIGHT;
        ent->render.framegroupblend[0].lerp = 1;
        ent->render.frameblend[0].lerp = 1;
        VectorSet(ent->render.colormod, 1, 1, 1);
        VectorSet(ent->render.glowmod, 1, 1, 1);
        VectorSet(ent->render.custommodellight_ambient, 1, 1, 1);
        VectorSet(ent->render.custommodellight_diffuse, 0, 0, 0);
        VectorSet(ent->render.custommodellight_lightdir, 0, 0, 1);
        VectorSet(ent->render.render_fullbright, 1, 1, 1);
        VectorSet(ent->render.render_glowmod, 0, 0, 0);
        VectorSet(ent->render.render_modellight_ambient, 1, 1, 1);
        VectorSet(ent->render.render_modellight_diffuse, 0, 0, 0);
        VectorSet(ent->render.render_modellight_specular, 0, 0, 0);
        VectorSet(ent->render.render_modellight_lightdir_world, 0, 0, 1);
        VectorSet(ent->render.render_modellight_lightdir_local, 0, 0, 1); // local doesn't matter because no diffuse/specular color
        VectorSet(ent->render.render_lightmap_ambient, 0, 0, 0);
        VectorSet(ent->render.render_lightmap_diffuse, 1, 1, 1);
        VectorSet(ent->render.render_lightmap_specular, 1, 1, 1);
        VectorSet(ent->render.render_rtlight_diffuse, 1, 1, 1);
        VectorSet(ent->render.render_rtlight_specular, 1, 1, 1);
 
        Matrix4x4_CreateIdentity(&ent->render.matrix);
        CL_UpdateRenderEntity(&ent->render);
    }
    cl_meshentities[MESH_UI].render.flags = RENDER_NOSELFSHADOW;
    R_RegisterModule("CL_MeshEntities", CL_MeshEntities_Start, CL_MeshEntities_Shutdown, CL_MeshEntities_Restart, CL_MeshEntities_Restart, CL_MeshEntities_Restart);
}
 
void CL_MeshEntities_Scene_Clear(void)
{
    Mod_Mesh_Reset(CL_Mesh_Scene());
}
 
void CL_MeshEntities_Scene_AddRenderEntity(void)
{
    entity_t* ent = &cl_meshentities[MESH_SCENE];
    r_refdef.scene.entities[r_refdef.scene.numentities++] = &ent->render;
}
 
void CL_MeshEntities_Scene_FinalizeRenderEntity(void)
{
    entity_t *ent = &cl_meshentities[MESH_SCENE];
    Mod_Mesh_Finalize(ent->render.model);
    VectorCopy(ent->render.model->normalmins, ent->render.mins);
    VectorCopy(ent->render.model->normalmaxs, ent->render.maxs);
}
 
extern cvar_t r_overheadsprites_pushback;
extern cvar_t r_fullbright_directed_pitch_relative;
extern cvar_t r_fullbright_directed_pitch;
extern cvar_t r_fullbright_directed_ambient;
extern cvar_t r_fullbright_directed_diffuse;
extern cvar_t r_fullbright_directed;
extern cvar_t r_hdr_glowintensity;
 
static void CL_UpdateEntityShading_GetDirectedFullbright(vec3_t ambient, vec3_t diffuse, vec3_t worldspacenormal)
{
    vec3_t angles;
 
    VectorSet(ambient, r_fullbright_directed_ambient.value, r_fullbright_directed_ambient.value, r_fullbright_directed_ambient.value);
    VectorSet(diffuse, r_fullbright_directed_diffuse.value, r_fullbright_directed_diffuse.value, r_fullbright_directed_diffuse.value);
 
    // Use cl.viewangles and not r_refdef.view.forward here so it is the
    // same for all stereo views, and to better handle pitches outside
    // [-90, 90] (in_pitch_* cvars allow that).
    VectorCopy(cl.viewangles, angles);
    if (r_fullbright_directed_pitch_relative.integer) {
        angles[PITCH] += r_fullbright_directed_pitch.value;
    }
    else {
        angles[PITCH] = r_fullbright_directed_pitch.value;
    }
    AngleVectors(angles, worldspacenormal, NULL, NULL);
    VectorNegate(worldspacenormal, worldspacenormal);
}
 
static void CL_UpdateEntityShading_Entity(entity_render_t *ent)
{
    float shadingorigin[3], a[3], c[3], dir[3];
    int q;
 
    for (q = 0; q < 3; q++)
        a[q] = c[q] = dir[q] = 0;
 
    ent->render_lightgrid = false;
    ent->render_modellight_forced = false;
    ent->render_rtlight_disabled = false;
 
    // pick an appropriate value for render_modellight_origin - if this is an
    // attachment we want to use the parent's render_modellight_origin so that
    // shading is the same (also important for r_shadows to cast shadows in the
    // same direction)
    if (VectorLength2(ent->custommodellight_origin))
    {
        // CSQC entities always provide this (via CL_GetTagMatrix)
        for (q = 0; q < 3; q++)
            shadingorigin[q] = ent->custommodellight_origin[q];
    }
    else if (ent->entitynumber > 0 && ent->entitynumber < cl.num_entities)
    {
        // network entity - follow attachment chain back to a root entity,
        int entnum = ent->entitynumber, recursion;
        for (recursion = 32; recursion > 0; --recursion)
        {
            int parentnum = cl.entities[entnum].state_current.tagentity;
            if (parentnum < 1 || parentnum >= cl.num_entities || !cl.entities_active[parentnum])
                break;
            entnum = parentnum;
        }
        // grab the root entity's origin
        Matrix4x4_OriginFromMatrix(&cl.entities[entnum].render.matrix, shadingorigin);
    }
    else
    {
        // not a CSQC entity (which sets custommodellight_origin), not a network
        // entity - so it's probably not attached to anything
        Matrix4x4_OriginFromMatrix(&ent->matrix, shadingorigin);
    }
 
    if (!(ent->flags & RENDER_LIGHT) || r_fullbright.integer)
    {
        // intentionally EF_FULLBRIGHT entity
        // the only type that is not scaled by r_refdef.scene.lightmapintensity
        // CSQC can still provide its own customized modellight values
        ent->render_rtlight_disabled = true;
        ent->render_modellight_forced = true;
        if (ent->flags & RENDER_CUSTOMIZEDMODELLIGHT)
        {
            // custom colors provided by CSQC
            for (q = 0; q < 3; q++)
            {
                a[q] = ent->custommodellight_ambient[q];
                c[q] = ent->custommodellight_diffuse[q];
                dir[q] = ent->custommodellight_lightdir[q];
            }
        }
        else if (r_fullbright_directed.integer)
            CL_UpdateEntityShading_GetDirectedFullbright(a, c, dir);
        else
            for (q = 0; q < 3; q++)
                a[q] = 1;
    }
    else
    {
        // fetch the lighting from the worldmodel data
 
        // CSQC can provide its own customized modellight values
        if (ent->flags & RENDER_CUSTOMIZEDMODELLIGHT)
        {
            ent->render_modellight_forced = true;
            for (q = 0; q < 3; q++)
            {
                a[q] = ent->custommodellight_ambient[q];
                c[q] = ent->custommodellight_diffuse[q];
                dir[q] = ent->custommodellight_lightdir[q];
            }
        }
        else if (ent->model->type == mod_sprite && !(ent->model->data_textures[0].basematerialflags & MATERIALFLAG_FULLBRIGHT))
        {
            if (ent->model->sprite.sprnum_type == SPR_OVERHEAD) // apply offset for overhead sprites
                shadingorigin[2] = shadingorigin[2] + r_overheadsprites_pushback.value;
            R_CompleteLightPoint(a, c, dir, shadingorigin, LP_LIGHTMAP | LP_RTWORLD | LP_DYNLIGHT, r_refdef.scene.lightmapintensity, r_refdef.scene.ambientintensity);
            ent->render_modellight_forced = true;
            ent->render_rtlight_disabled = true;
        }
        else if (((ent->model && !ent->model->lit) || (ent->model == r_refdef.scene.worldmodel ? mod_q3bsp_lightgrid_world_surfaces.integer : mod_q3bsp_lightgrid_bsp_surfaces.integer))
            && r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->lit && r_refdef.scene.worldmodel->brushq3.lightgridtexture && mod_q3bsp_lightgrid_texture.integer)
        {
            ent->render_lightgrid = true;
            // no need to call R_CompleteLightPoint as we base it on render_lightmap_*
        }
        else if (r_refdef.scene.worldmodel && r_refdef.scene.worldmodel->lit && r_refdef.scene.worldmodel->brush.LightPoint)
            R_CompleteLightPoint(a, c, dir, shadingorigin, LP_LIGHTMAP, r_refdef.scene.lightmapintensity, r_refdef.scene.ambientintensity);
        else if (r_fullbright_directed.integer)
            CL_UpdateEntityShading_GetDirectedFullbright(a, c, dir);
        else
            R_CompleteLightPoint(a, c, dir, shadingorigin, LP_LIGHTMAP, r_refdef.scene.lightmapintensity, r_refdef.scene.ambientintensity);
    }
 
    for (q = 0; q < 3; q++)
    {
        ent->render_fullbright[q] = ent->colormod[q];
        ent->render_glowmod[q] = ent->glowmod[q] * r_hdr_glowintensity.value;
        ent->render_modellight_ambient[q] = a[q] * ent->colormod[q];
        ent->render_modellight_diffuse[q] = c[q] * ent->colormod[q];
        ent->render_modellight_specular[q] = c[q];
        ent->render_modellight_lightdir_world[q] = dir[q];
        ent->render_lightmap_ambient[q] = ent->colormod[q] * r_refdef.scene.ambientintensity;
        ent->render_lightmap_diffuse[q] = ent->colormod[q] * r_refdef.scene.lightmapintensity;
        ent->render_lightmap_specular[q] = r_refdef.scene.lightmapintensity;
        ent->render_rtlight_diffuse[q] = ent->colormod[q];
        ent->render_rtlight_specular[q] = 1;
    }
 
    // these flags disable code paths, make sure it's obvious if they're ignored by storing 0 1 2
    if (ent->render_modellight_forced)
        for (q = 0; q < 3; q++)
            ent->render_lightmap_ambient[q] = ent->render_lightmap_diffuse[q] = ent->render_lightmap_specular[q] = q;
    if (ent->render_rtlight_disabled)
        for (q = 0; q < 3; q++)
            ent->render_rtlight_diffuse[q] = ent->render_rtlight_specular[q] = q;
 
    if (VectorLength2(ent->render_modellight_lightdir_world) == 0)
        VectorSet(ent->render_modellight_lightdir_world, 0, 0, 1); // have to set SOME valid vector here
    VectorNormalize(ent->render_modellight_lightdir_world);
    // transform into local space for the entity as well
    Matrix4x4_Transform3x3(&ent->inversematrix, ent->render_modellight_lightdir_world, ent->render_modellight_lightdir_local);
    VectorNormalize(ent->render_modellight_lightdir_local);
}
 
 
void CL_UpdateEntityShading(void)
{
    int i;
    CL_UpdateEntityShading_Entity(r_refdef.scene.worldentity);
    for (i = 0; i < r_refdef.scene.numentities; i++)
        CL_UpdateEntityShading_Entity(r_refdef.scene.entities[i]);
}
 
qbool vid_opened = false;
void CL_StartVideo(void)
{
    if (!vid_opened && cls.state != ca_dedicated)
    {
        vid_opened = true;
#ifdef WIN32
        // make sure we open sockets before opening video because the Windows Firewall "unblock?" dialog can screw up the graphics context on some graphics drivers
        NetConn_UpdateSockets();
#endif
        VID_Start();
    }
}
 
extern cvar_t host_framerate;
extern cvar_t host_speeds;
extern uint8_t serverlist_querystage;
double CL_Frame (double time)
{
    static double clframetime;
    static double cl_timer = 0;
    static double time1 = 0, time2 = 0, time3 = 0;
    int pass1, pass2, pass3;
    float maxfps;
 
    CL_VM_PreventInformationLeaks();
 
    /*
     * If the accumulator hasn't become positive, don't
     * run the frame. Everything that happens before this
     * point will happen even if we're sleeping this frame.
     */
 
    // limit the frametime steps to no more than 100ms each
    cl_timer = min(cl_timer + time, 0.1);
 
    // Run at full speed when querying servers, compared to waking up early to parse
    // this is simpler and gives pings more representative of what can be expected when playing.
    maxfps = (vid_activewindow || serverlist_querystage ? cl_maxfps : cl_maxidlefps).value;
 
    if (cls.state != ca_dedicated && (cl_timer > 0 || host.restless || maxfps <= 0))
    {
        R_TimeReport("---");
        Collision_Cache_NewFrame();
        R_TimeReport("photoncache");
#ifdef CONFIG_VIDEO_CAPTURE
        // decide the simulation time
        if (cls.capturevideo.active)
        {
            if (cls.capturevideo.realtime)
                clframetime = cl.realframetime = max(time, 1.0 / cls.capturevideo.framerate);
            else
            {
                clframetime = 1.0 / cls.capturevideo.framerate;
                cl.realframetime = max(time, clframetime);
            }
        }
        else
#endif
        {
            if (maxfps <= 0 || cls.timedemo)
                clframetime = cl.realframetime = cl_timer;
            else
                // networking assumes at least 10fps
                clframetime = cl.realframetime = bound(cl_timer, 1 / maxfps, 0.1);
 
            // on some legacy systems, we need to sleep to keep input responsive
            if (cl_maxfps_alwayssleep.value > 0 && !cls.timedemo)
                Sys_Sleep(min(cl_maxfps_alwayssleep.value / 1000, 0.05));
        }
 
        // apply slowmo scaling
        clframetime *= cl.movevars_timescale;
        // scale playback speed of demos by slowmo cvar
        if (cls.demoplayback)
        {
            clframetime *= host_timescale.value;
            // if demo playback is paused, don't advance time at all
            if (cls.demopaused)
                clframetime = 0;
        }
        else
        {
            // host_framerate overrides all else
            if (host_framerate.value)
                clframetime = host_framerate.value;
 
            if (cl.paused || host.paused)
                clframetime = 0;
        }
 
        // deduct the frame time from the accumulator
        cl_timer -= cl.realframetime;
 
        cl.oldtime = cl.time;
        cl.time += clframetime;
 
        // update video
        if (host_speeds.integer)
            time1 = Sys_DirtyTime();
        R_TimeReport("pre-input");
 
        // Collect input into cmd
        CL_Input();
 
        R_TimeReport("input");
 
        // check for new packets
        NetConn_ClientFrame();
 
        // read a new frame from a demo if needed
        CL_ReadDemoMessage();
        R_TimeReport("clientnetwork");
 
        // now that packets have been read, send input to server
        CL_SendMove();
        R_TimeReport("sendmove");
 
        // update client world (interpolate entities, create trails, etc)
        CL_UpdateWorld();
        R_TimeReport("lerpworld");
 
        CL_Video_Frame();
 
        R_TimeReport("client");
 
        CL_UpdateScreen();
        R_TimeReport("render");
 
        if (host_speeds.integer)
            time2 = Sys_DirtyTime();
 
        // update audio
        if(cl.csqc_usecsqclistener)
        {
            S_Update(&cl.csqc_listenermatrix);
            cl.csqc_usecsqclistener = false;
        }
        else
            S_Update(&r_refdef.view.matrix);
 
        CDAudio_Update();
        R_TimeReport("audio");
 
        // reset gathering of mouse input
        in_mouse_x = in_mouse_y = 0;
 
        if (host_speeds.integer)
        {
            pass1 = (int)((time1 - time3)*1000000);
            time3 = Sys_DirtyTime();
            pass2 = (int)((time2 - time1)*1000000);
            pass3 = (int)((time3 - time2)*1000000);
            Con_Printf("%6ius total %6ius server %6ius gfx %6ius snd\n",
                        pass1+pass2+pass3, pass1, pass2, pass3);
        }
    }
    // if there is some time remaining from this frame, reset the timer
    return cl_timer >= 0 ? 0 : cl_timer;
}
 
/*
===========
CL_Shutdown
===========
*/
void CL_Shutdown (void)
{
    // be quiet while shutting down
    S_StopAllSounds();
    
    // disconnect client from server if active
    CL_Disconnect();
    
    CL_Video_Shutdown();
 
#ifdef CONFIG_MENU
    // Shutdown menu
    if(MR_Shutdown)
        MR_Shutdown();
#endif
 
    S_Terminate ();
    
    R_Modules_Shutdown();
    VID_Shutdown();
 
    CL_Screen_Shutdown();
    CL_Particles_Shutdown();
    CL_Parse_Shutdown();
    CL_MeshEntities_Shutdown();
 
    Key_Shutdown();
 
    Mem_FreePool (&cls.permanentmempool);
    Mem_FreePool (&cls.levelmempool);
}
 
/*
=================
CL_Init
=================
*/
void CL_Init (void)
{
    if (cls.state == ca_dedicated)
    {
        Cmd_AddCommand(CF_SERVER, "disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
    }
    else
    {
        Con_Printf("Initializing client\n");
 
        Cvar_SetValueQuick(&host_isclient, 1);
 
        R_Modules_Init();
        Palette_Init();
#ifdef CONFIG_MENU
        MR_Init_Commands();
#endif
        VID_Shared_Init();
        VID_Init();
        Render_Init();
        S_Init();
        Key_Init();
        V_Init();
 
        cls.levelmempool = Mem_AllocPool("client (per-level memory)", 0, NULL);
        cls.permanentmempool = Mem_AllocPool("client (long term memory)", 0, NULL);
 
        memset(&r_refdef, 0, sizeof(r_refdef));
        // max entities sent to renderer per frame
        r_refdef.scene.maxentities = MAX_EDICTS + 256 + 512;
        r_refdef.scene.entities = (entity_render_t **)Mem_Alloc(cls.permanentmempool, sizeof(entity_render_t *) * r_refdef.scene.maxentities);
 
        // max temp entities
        r_refdef.scene.maxtempentities = MAX_TEMPENTITIES;
        r_refdef.scene.tempentities = (entity_render_t *)Mem_Alloc(cls.permanentmempool, sizeof(entity_render_t) * r_refdef.scene.maxtempentities);
 
        CL_InitInput ();
 
    //
    // register our commands
    //
        CL_InitCommands();
 
        Cvar_RegisterVariable (&cl_upspeed);
        Cvar_RegisterVariable (&cl_forwardspeed);
        Cvar_RegisterVariable (&cl_backspeed);
        Cvar_RegisterVariable (&cl_sidespeed);
        Cvar_RegisterVariable (&cl_movespeedkey);
        Cvar_RegisterVariable (&cl_yawspeed);
        Cvar_RegisterVariable (&cl_pitchspeed);
        Cvar_RegisterVariable (&cl_anglespeedkey);
        Cvar_RegisterVariable (&cl_shownet);
        Cvar_RegisterVariable (&cl_nolerp);
        Cvar_RegisterVariable (&cl_lerpexcess);
        Cvar_RegisterVariable (&cl_lerpanim_maxdelta_server);
        Cvar_RegisterVariable (&cl_lerpanim_maxdelta_framegroups);
        Cvar_RegisterVariable (&cl_deathfade);
        Cvar_RegisterVariable (&lookspring);
        Cvar_RegisterVariable (&lookstrafe);
        Cvar_RegisterVariable (&sensitivity);
        Cvar_RegisterVariable (&freelook);
 
        Cvar_RegisterVariable (&m_pitch);
        Cvar_RegisterVariable (&m_yaw);
        Cvar_RegisterVariable (&m_forward);
        Cvar_RegisterVariable (&m_side);
 
        Cvar_RegisterVariable (&cl_itembobspeed);
        Cvar_RegisterVariable (&cl_itembobheight);
 
        CL_Demo_Init();
 
        Cmd_AddCommand(CF_CLIENT, "entities", CL_PrintEntities_f, "print information on network entities known to client");
        Cmd_AddCommand(CF_CLIENT, "disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
        Cmd_AddCommand(CF_CLIENT, "connect", CL_Connect_f, "connect to a server by IP address or hostname");
        Cmd_AddCommand(CF_CLIENT | CF_CLIENT_FROM_SERVER, "reconnect", CL_Reconnect_f, "reconnect to the last server you were on, or resets a quakeworld connection (do not use if currently playing on a netquake server)");
 
        // Support Client-side Model Index List
        Cmd_AddCommand(CF_CLIENT, "cl_modelindexlist", CL_ModelIndexList_f, "list information on all models in the client modelindex");
        // Support Client-side Sound Index List
        Cmd_AddCommand(CF_CLIENT, "cl_soundindexlist", CL_SoundIndexList_f, "list all sounds in the client soundindex");
 
        Cmd_AddCommand(CF_CLIENT, "fog", CL_Fog_f, "set global fog parameters (density red green blue [alpha [mindist [maxdist [top [fadedepth]]]]])");
        Cmd_AddCommand(CF_CLIENT, "fog_heighttexture", CL_Fog_HeightTexture_f, "set global fog parameters (density red green blue alpha mindist maxdist top depth textures/mapname/fogheight.tga)");
 
        Cmd_AddCommand(CF_CLIENT, "cl_areastats", CL_AreaStats_f, "prints statistics on entity culling during collision traces");
 
        Cvar_RegisterVariable(&r_draweffects);
        Cvar_RegisterVariable(&cl_explosions_alpha_start);
        Cvar_RegisterVariable(&cl_explosions_alpha_end);
        Cvar_RegisterVariable(&cl_explosions_size_start);
        Cvar_RegisterVariable(&cl_explosions_size_end);
        Cvar_RegisterVariable(&cl_explosions_lifetime);
        Cvar_RegisterVariable(&cl_stainmaps);
        Cvar_RegisterVariable(&cl_stainmaps_clearonload);
        Cvar_RegisterVariable(&cl_beams_polygons);
        Cvar_RegisterVariable(&cl_beams_quakepositionhack);
        Cvar_RegisterVariable(&cl_beams_instantaimhack);
        Cvar_RegisterVariable(&cl_beams_lightatend);
        Cvar_RegisterVariable(&cl_noplayershadow);
        Cvar_RegisterVariable(&cl_dlights_decayradius);
        Cvar_RegisterVariable(&cl_dlights_decaybrightness);
 
        Cvar_RegisterVariable(&cl_prydoncursor);
        Cvar_RegisterVariable(&cl_prydoncursor_notrace);
 
        Cvar_RegisterVariable(&cl_deathnoviewmodel);
 
        // for QW connections
        Cvar_RegisterVariable(&qport);
        // multiplying by RAND_MAX necessary for Windows, for which RAND_MAX is only 32767.
        Cvar_SetValueQuick(&qport, ((unsigned int)rand() * RAND_MAX + (unsigned int)rand()) & 0xffff);
 
        Cmd_AddCommand(CF_CLIENT, "timerefresh", CL_TimeRefresh_f, "turn quickly and print rendering statistcs");
 
        Cvar_RegisterVariable(&cl_locs_enable);
        Cvar_RegisterVariable(&cl_locs_show);
        Cmd_AddCommand(CF_CLIENT, "locs_add", CL_Locs_Add_f, "add a point or box location (usage: x y z[ x y z] \"name\", if two sets of xyz are supplied it is a box, otherwise point)");
        Cmd_AddCommand(CF_CLIENT, "locs_removenearest", CL_Locs_RemoveNearest_f, "remove the nearest point or box (note: you need to be very near a box to remove it)");
        Cmd_AddCommand(CF_CLIENT, "locs_clear", CL_Locs_Clear_f, "remove all loc points/boxes");
        Cmd_AddCommand(CF_CLIENT, "locs_reload", CL_Locs_Reload_f, "reload .loc file for this map");
        Cmd_AddCommand(CF_CLIENT, "locs_save", CL_Locs_Save_f, "save .loc file for this map containing currently defined points and boxes");
 
        Cvar_RegisterVariable(&csqc_polygons_defaultmaterial_nocullface);
        Cvar_RegisterVariable(&csqc_lowres);
 
        Cvar_RegisterVariable (&cl_minfps);
        Cvar_RegisterVariable (&cl_minfps_fade);
        Cvar_RegisterVariable (&cl_minfps_qualitymax);
        Cvar_RegisterVariable (&cl_minfps_qualitymin);
        Cvar_RegisterVariable (&cl_minfps_qualitystepmax);
        Cvar_RegisterVariable (&cl_minfps_qualityhysteresis);
        Cvar_RegisterVariable (&cl_minfps_qualitymultiply);
        Cvar_RegisterVariable (&cl_minfps_force);
        Cvar_RegisterVariable (&cl_maxfps);
        Cvar_RegisterVariable (&cl_maxfps_alwayssleep);
        Cvar_RegisterVariable (&cl_maxidlefps);
 
        Cvar_RegisterVariable (&cl_areagrid_link_SOLID_NOT);
        Cvar_RegisterVariable (&cl_gameplayfix_nudgeoutofsolid_separation);
 
        CL_Parse_Init();
        CL_Particles_Init();
        CL_Screen_Init();
 
        CL_Video_Init();
 
        Cvar_Callback(&cl_netport);
 
        host.hook.ConnectLocal = CL_EstablishConnection_Local;
        host.hook.Disconnect = CL_DisconnectEx;
        host.hook.ToggleMenu = CL_ToggleMenu_Hook;
    }
}