fix a crash that could occur if resizing the resize buffer twice in one upload call...

[divverent/darkplaces.git] / cl_main.c

/*
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"

// we need to declare some mouse variables here, because the menu system
// references them even when on a unix system.

cvar_t csqc_progname = {0, "csqc_progname","csprogs.dat","name of csprogs.dat file to load"};   //[515]: csqc crc check and right csprogs name according to progs.dat
cvar_t csqc_progcrc = {CVAR_READONLY, "csqc_progcrc","0","CRC of csprogs.dat file to load"};

cvar_t cl_shownet = {0, "cl_shownet","0","1 = print packet size, 2 = print packet message list"};
cvar_t cl_nolerp = {0, "cl_nolerp", "0","network update smoothing"};

cvar_t cl_itembobheight = {0, "cl_itembobheight", "0","how much items bob up and down (try 8)"};
cvar_t cl_itembobspeed = {0, "cl_itembobspeed", "0.5","how frequently items bob up and down"};

cvar_t lookspring = {CVAR_SAVE, "lookspring","0","returns pitch to level with the floor when no longer holding a pitch key"};
cvar_t lookstrafe = {CVAR_SAVE, "lookstrafe","0","move instead of turning"};
cvar_t sensitivity = {CVAR_SAVE, "sensitivity","3","mouse speed multiplier"};

cvar_t m_pitch = {CVAR_SAVE, "m_pitch","0.022","mouse pitch speed multiplier"};
cvar_t m_yaw = {CVAR_SAVE, "m_yaw","0.022","mouse yaw speed multiplier"};
cvar_t m_forward = {CVAR_SAVE, "m_forward","1","mouse forward speed multiplier"};
cvar_t m_side = {CVAR_SAVE, "m_side","0.8","mouse side speed multiplier"};

cvar_t freelook = {CVAR_SAVE, "freelook", "1","mouse controls pitch instead of forward/back"};

cvar_t r_draweffects = {0, "r_draweffects", "1","renders temporary sprite effects"};

cvar_t cl_explosions_alpha_start = {CVAR_SAVE, "cl_explosions_alpha_start", "1.5","starting alpha of an explosion shell"};
cvar_t cl_explosions_alpha_end = {CVAR_SAVE, "cl_explosions_alpha_end", "0","end alpha of an explosion shell (just before it disappears)"};
cvar_t cl_explosions_size_start = {CVAR_SAVE, "cl_explosions_size_start", "16","starting size of an explosion shell"};
cvar_t cl_explosions_size_end = {CVAR_SAVE, "cl_explosions_size_end", "128","ending alpha of an explosion shell (just before it disappears)"};
cvar_t cl_explosions_lifetime = {CVAR_SAVE, "cl_explosions_lifetime", "0.5","how long an explosion shell lasts"};

cvar_t cl_stainmaps = {CVAR_SAVE, "cl_stainmaps", "1","stains lightmaps, much faster than decals but blurred"};
cvar_t cl_stainmaps_clearonload = {CVAR_SAVE, "cl_stainmaps_clearonload", "1","clear stainmaps on map restart"};

cvar_t cl_beams_polygons = {CVAR_SAVE, "cl_beams_polygons", "1","use beam polygons instead of models"};
cvar_t cl_beams_relative = {CVAR_SAVE, "cl_beams_relative", "1","beams are relative to owner (smooth sweeps)"};
cvar_t cl_beams_lightatend = {CVAR_SAVE, "cl_beams_lightatend", "0","make a light at the end of the beam"};

cvar_t cl_noplayershadow = {CVAR_SAVE, "cl_noplayershadow", "0","hide player shadow"};

cvar_t qport = {0, "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 = {0, "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_deathnoviewmodel = {0, "cl_deathnoviewmodel", "1", "hides gun model when dead"};

client_static_t cls;
client_state_t  cl;

#define MAX_PARTICLES                   32768   // default max # of particles at one time
#define ABSOLUTE_MIN_PARTICLES  512             // no fewer than this no matter what's on the command line

/*
=====================
CL_ClearState

=====================
*/
void CL_ClearState(void)
{
        int i;
        entity_t *ent;

// 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.num_entities = 0;
        cl.num_csqcentities = 0;        //[515]: csqc
        cl.num_static_entities = 0;
        cl.num_temp_entities = 0;
        cl.num_brushmodel_entities = 0;

        // tweak these if the game runs out
        cl.max_entities = 256;
        cl.max_csqcentities = 256;      //[515]: csqc
        cl.max_static_entities = 256;
        cl.max_temp_entities = 512;
        cl.max_effects = 256;
        cl.max_beams = 256;
        cl.max_dlights = MAX_DLIGHTS;
        cl.max_lightstyle = MAX_LIGHTSTYLES;
        cl.max_brushmodel_entities = MAX_EDICTS;
        cl.max_particles = MAX_PARTICLES;

// COMMANDLINEOPTION: Client: -particles <number> changes maximum number of particles at once, default 32768
        i = COM_CheckParm ("-particles");
        if (i && i < com_argc - 1)
        {
                cl.max_particles = (int)(atoi(com_argv[i+1]));
                if (cl.max_particles < ABSOLUTE_MIN_PARTICLES)
                        cl.max_particles = ABSOLUTE_MIN_PARTICLES;
        }

        cl.num_dlights = 0;
        cl.num_effects = 0;
        cl.num_beams = 0;

        cl.entities = (entity_t *)Mem_Alloc(cls.levelmempool, cl.max_entities * sizeof(entity_t));
        cl.csqcentities = (entity_t *)Mem_Alloc(cls.levelmempool, cl.max_csqcentities * sizeof(entity_t));      //[515]: csqc
        cl.entities_active = (unsigned char *)Mem_Alloc(cls.levelmempool, cl.max_brushmodel_entities * sizeof(unsigned char));
        cl.csqcentities_active = (unsigned char *)Mem_Alloc(cls.levelmempool, cl.max_brushmodel_entities * sizeof(unsigned char));      //[515]: csqc
        cl.static_entities = (entity_t *)Mem_Alloc(cls.levelmempool, cl.max_static_entities * sizeof(entity_t));
        cl.temp_entities = (entity_t *)Mem_Alloc(cls.levelmempool, cl.max_temp_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));

        // LordHavoc: 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;
        }

        for (i = 0;i < cl.max_csqcentities;i++)
        {
                cl.csqcentities[i].state_baseline = defaultstate;       //[515]: csqc
                cl.csqcentities[i].state_previous = defaultstate;       //[515]: csqc
                cl.csqcentities[i].state_current = defaultstate;        //[515]: csqc
                cl.csqcentities[i].csqc = true;
                cl.csqcentities[i].state_current.number = -i;
        }

        if (gamemode == GAME_NEXUIZ)
        {
                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.scale = 1; // some of the renderer still relies on scale
        ent->render.alpha = 1;
        ent->render.colormap = -1; // no special coloring
        ent->render.flags = RENDER_SHADOW | RENDER_LIGHT;
        Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, 0, 0, 0, 0, 0, 0, 1);
        Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
        CL_BoundingBoxForEntity(&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));

        CL_Screen_NewMap();
}

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_ExpandCSQCEntities(int num)
{
        int i, oldmaxentities;
        entity_t *oldentities;
        if (num >= cl.max_csqcentities)
        {
                if (!cl.csqcentities)
                        Sys_Error("CL_ExpandCSQCEntities: cl.csqcentities not initialized\n");
                if (num >= MAX_EDICTS)
                        Host_Error("CL_ExpandCSQCEntities: num %i >= %i\n", num, MAX_EDICTS);
                oldmaxentities = cl.max_csqcentities;
                oldentities = cl.csqcentities;
                cl.max_csqcentities = (num & ~255) + 256;
                cl.csqcentities = Mem_Alloc(cls.levelmempool, cl.max_csqcentities * sizeof(entity_t));
                memcpy(cl.csqcentities, oldentities, oldmaxentities * sizeof(entity_t));
                Mem_Free(oldentities);
                for (i = oldmaxentities;i < cl.max_csqcentities;i++)
                {
                        cl.csqcentities[i].state_baseline = defaultstate;
                        cl.csqcentities[i].state_previous = defaultstate;
                        cl.csqcentities[i].state_current = defaultstate;
                        cl.csqcentities[i].csqc = true;
                        cl.csqcentities[i].state_current.number = -i;
                }
        }
}

void CL_VM_ShutDown (void);
/*
=====================
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_Disconnect(void)
{
        if (cls.state == ca_dedicated)
                return;

        Con_DPrintf("CL_Disconnect\n");

        CL_VM_ShutDown();
// stop sounds (especially looping!)
        S_StopAllSounds ();

        // 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;

        if (cls.demoplayback)
                CL_StopPlayback();
        else if (cls.netcon)
        {
                sizebuf_t buf;
                unsigned char bufdata[8];
                if (cls.demorecording)
                        CL_Stop_f();

                // 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);
                }
                NetConn_SendUnreliableMessage(cls.netcon, &buf, cls.protocol);
                NetConn_SendUnreliableMessage(cls.netcon, &buf, cls.protocol);
                NetConn_SendUnreliableMessage(cls.netcon, &buf, cls.protocol);
                NetConn_Close(cls.netcon);
                cls.netcon = NULL;
        }
        cls.state = ca_disconnected;

        cls.demoplayback = cls.timedemo = false;
        cls.signon = 0;
}

void CL_Disconnect_f(void)
{
        CL_Disconnect ();
        if (sv.active)
                Host_ShutdownServer ();
}




/*
=====================
CL_EstablishConnection

Host should be either "local" or a net address
=====================
*/
void CL_EstablishConnection(const char *host)
{
        if (cls.state == ca_dedicated)
                return;

        // clear menu's connect error message
        M_Update_Return_Reason("");
        cls.demonum = -1;

        // stop demo loop in case this fails
        CL_Disconnect();

        // make sure the client ports are open before attempting to connect
        NetConn_UpdateSockets();

        // run a network frame
        //NetConn_ClientFrame();SV_VM_Begin();NetConn_ServerFrame();SV_VM_End();

        if (LHNETADDRESS_FromString(&cls.connect_address, host, 26000) && (cls.connect_mysocket = NetConn_ChooseClientSocketForAddress(&cls.connect_address)))
        {
                cls.connect_trying = true;
                cls.connect_remainingtries = 3;
                cls.connect_nextsendtime = 0;
                M_Update_Return_Reason("Trying to connect...");
                // run several network frames to jump into the game quickly
                //if (sv.active)
                //{
                //      NetConn_ClientFrame();SV_VM_Begin();NetConn_ServerFrame();SV_VM_End();
                //      NetConn_ClientFrame();SV_VM_Begin();NetConn_ServerFrame();SV_VM_End();
                //      NetConn_ClientFrame();SV_VM_Begin();NetConn_ServerFrame();SV_VM_End();
                //      NetConn_ClientFrame();SV_VM_Begin();NetConn_ServerFrame();SV_VM_End();
                //}
        }
        else
        {
                Con_Print("Unable to find a suitable network socket to connect to server.\n");
                M_Update_Return_Reason("No network");
        }
}

/*
==============
CL_PrintEntities_f
==============
*/
static void CL_PrintEntities_f(void)
{
        entity_t *ent;
        int i, j;
        char name[32];

        for (i = 0, ent = cl.entities;i < cl.num_entities;i++, ent++)
        {
                if (!ent->state_current.active)
                        continue;

                if (ent->render.model)
                        strlcpy (name, ent->render.model->name, 25);
                else
                        strcpy(name, "--no model--");
                for (j = (int)strlen(name);j < 25;j++)
                        name[j] = ' ';
                Con_Printf("%3i: %s:%4i (%5i %5i %5i) [%3i %3i %3i] %4.2f %5.3f\n", i, name, ent->render.frame, (int) ent->render.matrix.m[0][3], (int) ent->render.matrix.m[1][3], (int) ent->render.matrix.m[2][3], (int) ent->render.angles[0] % 360, (int) ent->render.angles[1] % 360, (int) ent->render.angles[2] % 360, ent->render.scale, ent->render.alpha);
        }
}

//static const vec3_t nomodelmins = {-16, -16, -16};
//static const vec3_t nomodelmaxs = {16, 16, 16};
void CL_BoundingBoxForEntity(entity_render_t *ent)
{
        if (ent->model)
        {
                //if (ent->angles[0] || ent->angles[2])
                if (ent->matrix.m[2][0] != 0 || ent->matrix.m[2][1] != 0)
                {
                        // pitch or roll
                        ent->mins[0] = ent->matrix.m[0][3] + ent->model->rotatedmins[0];
                        ent->mins[1] = ent->matrix.m[1][3] + ent->model->rotatedmins[1];
                        ent->mins[2] = ent->matrix.m[2][3] + ent->model->rotatedmins[2];
                        ent->maxs[0] = ent->matrix.m[0][3] + ent->model->rotatedmaxs[0];
                        ent->maxs[1] = ent->matrix.m[1][3] + ent->model->rotatedmaxs[1];
                        ent->maxs[2] = ent->matrix.m[2][3] + ent->model->rotatedmaxs[2];
                        //VectorAdd(ent->origin, ent->model->rotatedmins, ent->mins);
                        //VectorAdd(ent->origin, ent->model->rotatedmaxs, ent->maxs);
                }
                //else if (ent->angles[1])
                else if (ent->matrix.m[0][1] != 0 || ent->matrix.m[1][0] != 0)
                {
                        // yaw
                        ent->mins[0] = ent->matrix.m[0][3] + ent->model->yawmins[0];
                        ent->mins[1] = ent->matrix.m[1][3] + ent->model->yawmins[1];
                        ent->mins[2] = ent->matrix.m[2][3] + ent->model->yawmins[2];
                        ent->maxs[0] = ent->matrix.m[0][3] + ent->model->yawmaxs[0];
                        ent->maxs[1] = ent->matrix.m[1][3] + ent->model->yawmaxs[1];
                        ent->maxs[2] = ent->matrix.m[2][3] + ent->model->yawmaxs[2];
                        //VectorAdd(ent->origin, ent->model->yawmins, ent->mins);
                        //VectorAdd(ent->origin, ent->model->yawmaxs, ent->maxs);
                }
                else
                {
                        ent->mins[0] = ent->matrix.m[0][3] + ent->model->normalmins[0];
                        ent->mins[1] = ent->matrix.m[1][3] + ent->model->normalmins[1];
                        ent->mins[2] = ent->matrix.m[2][3] + ent->model->normalmins[2];
                        ent->maxs[0] = ent->matrix.m[0][3] + ent->model->normalmaxs[0];
                        ent->maxs[1] = ent->matrix.m[1][3] + ent->model->normalmaxs[1];
                        ent->maxs[2] = ent->matrix.m[2][3] + ent->model->normalmaxs[2];
                        //VectorAdd(ent->origin, ent->model->normalmins, ent->mins);
                        //VectorAdd(ent->origin, ent->model->normalmaxs, ent->maxs);
                }
        }
        else
        {
                ent->mins[0] = ent->matrix.m[0][3] - 16;
                ent->mins[1] = ent->matrix.m[1][3] - 16;
                ent->mins[2] = ent->matrix.m[2][3] - 16;
                ent->maxs[0] = ent->matrix.m[0][3] + 16;
                ent->maxs[1] = ent->matrix.m[1][3] + 16;
                ent->maxs[2] = ent->matrix.m[2][3] + 16;
                //VectorAdd(ent->origin, nomodelmins, ent->mins);
                //VectorAdd(ent->origin, nomodelmaxs, ent->maxs);
        }
}

/*
===============
CL_LerpPoint

Determines the fraction between the last two messages that the objects
should be put at.
===============
*/
static float CL_LerpPoint(void)
{
        float f;

        // dropped packet, or start of demo
        if (cl.mtime[1] < cl.mtime[0] - 0.1)
                cl.mtime[1] = cl.mtime[0] - 0.1;

        cl.time = bound(cl.mtime[1], cl.time, cl.mtime[0]);

        // LordHavoc: lerp in listen games as the server is being capped below the client (usually)
        f = cl.mtime[0] - cl.mtime[1];
        if (!f || cl_nolerp.integer || cls.timedemo || (cl.islocalgame && !sv_fixedframeratesingleplayer.integer))
        {
                cl.time = cl.mtime[0];
                return 1;
        }

        f = (cl.time - cl.mtime[1]) / f;
        return bound(0, f, 1);
}

void CL_ClearTempEntities (void)
{
        cl.num_temp_entities = 0;
}

entity_t *CL_NewTempEntity(void)
{
        entity_t *ent;

        if (r_refdef.numentities >= r_refdef.maxentities)
                return NULL;
        if (cl.num_temp_entities >= cl.max_temp_entities)
                return NULL;
        ent = &cl.temp_entities[cl.num_temp_entities++];
        memset (ent, 0, sizeof(*ent));
        r_refdef.entities[r_refdef.numentities++] = &ent->render;

        ent->render.colormap = -1; // no special coloring
        ent->render.scale = 1;
        ent->render.alpha = 1;
        VectorSet(ent->render.colormod, 1, 1, 1);
        return ent;
}

void CL_Effect(vec3_t org, int modelindex, int startframe, int framecount, float framerate)
{
        int i;
        cl_effect_t *e;
        if (!modelindex) // sanity check
                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->modelindex = modelindex;
                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_AllocDlight(entity_render_t *ent, matrix4x4_t *matrix, float radius, float red, float green, float blue, float decay, float lifetime, int cubemapnum, 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;

        /*
// first look for an exact key match
        if (ent)
        {
                dl = cl.dlights;
                for (i = 0;i < cl.num_dlights;i++, dl++)
                        if (dl->ent == ent)
                                goto dlightsetup;
        }
        */

// then look for anything else
        dl = cl.dlights;
        for (i = 0;i < cl.num_dlights;i++, dl++)
                if (!dl->radius)
                        goto dlightsetup;
        // if we hit the end of the active dlights and found no gaps, add a new one
        if (i < MAX_DLIGHTS)
        {
                cl.num_dlights = i + 1;
                goto dlightsetup;
        }

        // unable to find one
        return;

dlightsetup:
        //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));
        Matrix4x4_Normalize(&dl->matrix, matrix);
        dl->ent = ent;
        dl->origin[0] = dl->matrix.m[0][3];
        dl->origin[1] = dl->matrix.m[1][3];
        dl->origin[2] = dl->matrix.m[2][3];
        CL_FindNonSolidLocation(dl->origin, dl->origin, 6);
        dl->matrix.m[0][3] = dl->origin[0];
        dl->matrix.m[1][3] = dl->origin[1];
        dl->matrix.m[2][3] = dl->origin[2];
        dl->radius = radius;
        dl->color[0] = red;
        dl->color[1] = green;
        dl->color[2] = blue;
        dl->decay = decay;
        if (lifetime)
                dl->die = cl.time + lifetime;
        else
                dl->die = 0;
        dl->cubemapnum = cubemapnum;
        dl->style = style;
        dl->shadow = shadowenable;
        dl->corona = corona;
        dl->flags = flags;
        dl->coronasizescale = coronasizescale;
        dl->ambientscale = ambientscale;
        dl->diffusescale = diffusescale;
        dl->specularscale = specularscale;
}

// called before entity relinking
void CL_DecayLights(void)
{
        int i, oldmax;
        dlight_t *dl;
        float time, f;

        time = cl.time - cl.oldtime;
        oldmax = cl.num_dlights;
        cl.num_dlights = 0;
        for (i = 0, dl = cl.dlights;i < oldmax;i++, dl++)
        {
                if (dl->radius)
                {
                        f = dl->radius - time * dl->decay;
                        if (cl.time < dl->die && f > 0)
                        {
                                dl->radius = dl->radius - time * dl->decay;
                                cl.num_dlights = i + 1;
                        }
                        else
                                dl->radius = 0;
                }
        }
}

// called after entity relinking
void CL_UpdateLights(void)
{
        int i, j, k, l;
        dlight_t *dl;
        float frac, f;

        r_refdef.numlights = 0;
        if (r_dynamic.integer)
        {
                for (i = 0, dl = cl.dlights;i < cl.num_dlights;i++, dl++)
                {
                        if (dl->radius)
                        {
                                R_RTLight_Update(dl, false);
                                r_refdef.lights[r_refdef.numlights++] = dl;
                        }
                }
        }

// 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 || !cl.lightstyle[j].length)
                {
                        r_refdef.lightstylevalue[j] = 256;
                        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';
                r_refdef.lightstylevalue[j] = ((k*frac)+(l*(1-frac)))*22;
        }
}

void CL_AddQWCTFFlagModel(entity_t *player, int skin)
{
        float f;
        entity_t *flag;
        matrix4x4_t flagmatrix;

        // this code taken from QuakeWorld
        f = 14;
        if (player->render.frame2 >= 29 && player->render.frame2 <= 40)
        {
                if (player->render.frame2 >= 29 && player->render.frame2 <= 34)
                { //axpain
                        if      (player->render.frame2 == 29) f = f + 2;
                        else if (player->render.frame2 == 30) f = f + 8;
                        else if (player->render.frame2 == 31) f = f + 12;
                        else if (player->render.frame2 == 32) f = f + 11;
                        else if (player->render.frame2 == 33) f = f + 10;
                        else if (player->render.frame2 == 34) f = f + 4;
                }
                else if (player->render.frame2 >= 35 && player->render.frame2 <= 40)
                { // pain
                        if      (player->render.frame2 == 35) f = f + 2;
                        else if (player->render.frame2 == 36) f = f + 10;
                        else if (player->render.frame2 == 37) f = f + 10;
                        else if (player->render.frame2 == 38) f = f + 8;
                        else if (player->render.frame2 == 39) f = f + 4;
                        else if (player->render.frame2 == 40) f = f + 2;
                }
        }
        else if (player->render.frame2 >= 103 && player->render.frame2 <= 118)
        {
                if      (player->render.frame2 >= 103 && player->render.frame2 <= 104) f = f + 6;  //nailattack
                else if (player->render.frame2 >= 105 && player->render.frame2 <= 106) f = f + 6;  //light
                else if (player->render.frame2 >= 107 && player->render.frame2 <= 112) f = f + 7;  //rocketattack
                else if (player->render.frame2 >= 112 && player->render.frame2 <= 118) f = f + 7;  //shotattack
        }
        // end of code taken from QuakeWorld

        flag = CL_NewTempEntity();
        if (!flag)
                return;

        flag->render.model = cl.model_precache[cl.qw_modelindex_flag];
        flag->render.skinnum = skin;
        flag->render.colormap = -1; // no special coloring
        flag->render.alpha = 1;
        VectorSet(flag->render.colormod, 1, 1, 1);
        // attach the flag to the player matrix
        Matrix4x4_CreateFromQuakeEntity(&flagmatrix, -f, -22, 0, 0, 0, -45, 1);
        Matrix4x4_Concat(&flag->render.matrix, &player->render.matrix, &flagmatrix);
        Matrix4x4_Invert_Simple(&flag->render.inversematrix, &flag->render.matrix);
        R_LerpAnimation(&flag->render);
        CL_BoundingBoxForEntity(&flag->render);
}

#define MAXVIEWMODELS 32
entity_t *viewmodels[MAXVIEWMODELS];
int numviewmodels;

matrix4x4_t viewmodelmatrix;

static int entitylinkframenumber;

static const vec3_t muzzleflashorigin = {18, 0, 0};

extern void V_DriftPitch(void);
extern void V_FadeViewFlashs(void);
extern void V_CalcViewBlend(void);

extern void V_CalcRefdef(void);
// note this is a recursive function, but it can never get in a runaway loop (because of the delayedlink flags)
void CL_LinkNetworkEntity(entity_t *e)
{
        matrix4x4_t *matrix, blendmatrix, tempmatrix, matrix2;
        //matrix4x4_t dlightmatrix;
        int j, k, l, trailtype, temp;
        float origin[3], angles[3], delta[3], lerp, dlightcolor[3], dlightradius, mins[3], maxs[3], v2[3], d;
        entity_t *t;
        model_t *model;
        trace_t trace;
        //entity_persistent_t *p = &e->persistent;
        //entity_render_t *r = &e->render;
        if (e->persistent.linkframe != entitylinkframenumber)
        {
                e->persistent.linkframe = entitylinkframenumber;
                // skip inactive entities and world
                if (!e->state_current.active || e == cl.entities || e == cl.csqcentities)
                        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);
                if (e->state_current.flags & RENDER_COLORMAPPED)
                {
                        int cb;
                        unsigned char *cbcolor;
                        e->render.colormap = e->state_current.colormap;
                        cb = (e->render.colormap & 0xF) << 4;cb += (cb >= 128 && cb < 224) ? 4 : 12;
                        cbcolor = (unsigned char *) (&palette_complete[cb]);
                        e->render.colormap_pantscolor[0] = cbcolor[0] * (1.0f / 255.0f);
                        e->render.colormap_pantscolor[1] = cbcolor[1] * (1.0f / 255.0f);
                        e->render.colormap_pantscolor[2] = cbcolor[2] * (1.0f / 255.0f);
                        cb = (e->render.colormap & 0xF0);cb += (cb >= 128 && cb < 224) ? 4 : 12;
                        cbcolor = (unsigned char *) (&palette_complete[cb]);
                        e->render.colormap_shirtcolor[0] = cbcolor[0] * (1.0f / 255.0f);
                        e->render.colormap_shirtcolor[1] = cbcolor[1] * (1.0f / 255.0f);
                        e->render.colormap_shirtcolor[2] = cbcolor[2] * (1.0f / 255.0f);
                }
                else if (e->state_current.colormap && cl.scores != NULL)
                {
                        int cb;
                        unsigned char *cbcolor;
                        e->render.colormap = cl.scores[e->state_current.colormap - 1].colors; // color it
                        cb = (e->render.colormap & 0xF) << 4;cb += (cb >= 128 && cb < 224) ? 4 : 12;
                        cbcolor = (unsigned char *) (&palette_complete[cb]);
                        e->render.colormap_pantscolor[0] = cbcolor[0] * (1.0f / 255.0f);
                        e->render.colormap_pantscolor[1] = cbcolor[1] * (1.0f / 255.0f);
                        e->render.colormap_pantscolor[2] = cbcolor[2] * (1.0f / 255.0f);
                        cb = (e->render.colormap & 0xF0);cb += (cb >= 128 && cb < 224) ? 4 : 12;
                        cbcolor = (unsigned char *) (&palette_complete[cb]);
                        e->render.colormap_shirtcolor[0] = cbcolor[0] * (1.0f / 255.0f);
                        e->render.colormap_shirtcolor[1] = cbcolor[1] * (1.0f / 255.0f);
                        e->render.colormap_shirtcolor[2] = cbcolor[2] * (1.0f / 255.0f);
                }
                else
                {
                        e->render.colormap = -1; // no special coloring
                        VectorClear(e->render.colormap_pantscolor);
                        VectorClear(e->render.colormap_shirtcolor);
                }
                e->render.skinnum = e->state_current.skin;
                if (e->render.flags & RENDER_VIEWMODEL && !e->state_current.tagentity)
                {
                        if (!r_drawviewmodel.integer || chase_active.integer || envmap)// || csqc_loaded)
                                return;
                        if (!e->csqc)
                        {
                                if (cl.viewentity)
                                        CL_LinkNetworkEntity(cl.entities + cl.viewentity);
                                if (e == &cl.viewent && cl.entities[cl.viewentity].state_current.active)
                                {
                                        e->state_current.alpha = cl.entities[cl.viewentity].state_current.alpha;
                                        e->state_current.effects = EF_NOSHADOW | (cl.entities[cl.viewentity].state_current.effects & (EF_ADDITIVE | EF_REFLECTIVE | EF_FULLBRIGHT | EF_NODEPTHTEST));
                                }
                        }
                        matrix = &viewmodelmatrix;
                }
                else
                {
                        // if the tag entity is currently impossible, skip it
                        if (!e->csqc)
                        {
                                if (e->state_current.tagentity >= cl.num_entities)
                                        return;
                                t = cl.entities + e->state_current.tagentity;
                        }
                        else
                        {
                                if (e->state_current.tagentity >= cl.num_csqcentities)
                                        return;
                                t = cl.csqcentities + e->state_current.tagentity;
                        }
                        // if the tag entity is inactive, skip it
                        if (!t->state_current.active)
                                return;
                        // note: this can link to world
                        CL_LinkNetworkEntity(t);
                        // make relative to the entity
                        matrix = &t->render.matrix;
                        // some properties of the tag entity carry over
                        e->render.flags |= t->render.flags & (RENDER_EXTERIORMODEL | RENDER_VIEWMODEL);
                        // if a valid tagindex is used, make it relative to that tag instead
                        // FIXME: use a model function to get tag info (need to handle skeletal)
                        if (e->state_current.tagentity && e->state_current.tagindex >= 1 && (model = t->render.model))
                        {
                                // blend the matrices
                                memset(&blendmatrix, 0, sizeof(blendmatrix));
                                for (j = 0;j < 4 && t->render.frameblend[j].lerp > 0;j++)
                                {
                                        matrix4x4_t tagmatrix;
                                        Mod_Alias_GetTagMatrix(model, t->render.frameblend[j].frame, e->state_current.tagindex - 1, &tagmatrix);
                                        d = t->render.frameblend[j].lerp;
                                        for (l = 0;l < 4;l++)
                                                for (k = 0;k < 4;k++)
                                                        blendmatrix.m[l][k] += d * tagmatrix.m[l][k];
                                }
                                // concat the tag matrices onto the entity matrix
                                Matrix4x4_Concat(&tempmatrix, &t->render.matrix, &blendmatrix);
                                // use the constructed tag matrix
                                matrix = &tempmatrix;
                        }
                }

                // movement lerp
                // if it's the player entity, update according to client movement
                if (e == cl.entities + cl.playerentity && cl.movement)// && !e->csqc)
                {
                        lerp = (cl.time - cl.mtime[1]) / (cl.mtime[0] - cl.mtime[1]);
                        lerp = bound(0, lerp, 1);
                        VectorLerp(cl.movement_oldorigin, lerp, cl.movement_origin, origin);
                        VectorSet(angles, 0, cl.viewangles[1], 0);
                }
                else if (e->persistent.lerpdeltatime > 0 && (lerp = (cl.time - e->persistent.lerpstarttime) / e->persistent.lerpdeltatime) < 1)
                {
                        // interpolate the origin and angles
                        VectorLerp(e->persistent.oldorigin, lerp, e->persistent.neworigin, origin);
                        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
                {
                        // no interpolation
                        VectorCopy(e->persistent.neworigin, origin);
                        VectorCopy(e->persistent.newangles, angles);
                }

                // model setup and some modelflags
                if(e->state_current.modelindex < MAX_MODELS)
                        e->render.model = cl.model_precache[e->state_current.modelindex];
                else
                        e->render.model = cl.csqc_model_precache[65536-e->state_current.modelindex];
                if (e->render.model)
                {
                        // if model is alias or this is a tenebrae-like dlight, reverse pitch direction
                        if (e->render.model->type == mod_alias || (e->state_current.lightpflags & PFLAGS_FULLDYNAMIC))
                                angles[0] = -angles[0];
                        if ((e->render.model->flags & EF_ROTATE) && (!e->state_current.tagentity && !(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;
                        }
                        // transfer certain model flags to effects
                        e->render.effects |= e->render.model->flags2 & (EF_FULLBRIGHT | EF_ADDITIVE);
                        if (cl_prydoncursor.integer && (e->render.effects & EF_SELECTABLE) && cl.cmd.cursor_entitynumber == e->state_current.number)
                                VectorScale(e->render.colormod, 2, e->render.colormod);
                }

                // animation lerp
                if (e->render.frame2 == e->state_current.frame)
                {
                        // update frame lerp fraction
                        e->render.framelerp = 1;
                        if (e->render.frame2time > e->render.frame1time)
                        {
                                // make sure frame lerp won't last longer than 100ms
                                // (this mainly helps with models that use framegroups and
                                // switch between them infrequently)
                                e->render.framelerp = (cl.time - e->render.frame2time) / min(e->render.frame2time - e->render.frame1time, 0.1);
                                e->render.framelerp = bound(0, e->render.framelerp, 1);
                        }
                }
                else
                {
                        // begin a new frame lerp
                        e->render.frame1 = e->render.frame2;
                        e->render.frame1time = e->render.frame2time;
                        e->render.frame = e->render.frame2 = e->state_current.frame;
                        e->render.frame2time = cl.time;
                        e->render.framelerp = 0;
                }
                R_LerpAnimation(&e->render);

                // set up the render matrix
                // 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);
                // make the other useful stuff
                Matrix4x4_Invert_Simple(&e->render.inversematrix, &e->render.matrix);
                CL_BoundingBoxForEntity(&e->render);

                // handle effects now that we know where this entity is in the world...
                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
                {
                        origin[0] = e->render.matrix.m[0][3];
                        origin[1] = e->render.matrix.m[1][3];
                        origin[2] = e->render.matrix.m[2][3];
                }
                trailtype = -1;
                dlightradius = 0;
                dlightcolor[0] = 0;
                dlightcolor[1] = 0;
                dlightcolor[2] = 0;
                // LordHavoc: if the entity has no effects, don't check each
                if (e->render.effects)
                {
                        if (e->render.effects & EF_BRIGHTFIELD)
                        {
                                if (gamemode == GAME_NEXUIZ)
                                {
                                        dlightradius = max(dlightradius, 200);
                                        dlightcolor[0] += 0.75f;
                                        dlightcolor[1] += 1.50f;
                                        dlightcolor[2] += 3.00f;
                                        trailtype = 8;
                                }
                                else
                                        CL_EntityParticles(e);
                        }
                        if (e->render.effects & EF_MUZZLEFLASH)
                                e->persistent.muzzleflash = 1.0f;
                        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;
                        }
                        // LordHavoc: 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)
                        {
                                mins[0] = origin[0] - 16.0f;
                                mins[1] = origin[1] - 16.0f;
                                mins[2] = origin[2] - 16.0f;
                                maxs[0] = origin[0] + 16.0f;
                                maxs[1] = origin[1] + 16.0f;
                                maxs[2] = origin[2] + 16.0f;
                                // how many flames to make
                                temp = (int) (cl.time * 300) - (int) (cl.oldtime * 300);
                                CL_FlameCube(mins, maxs, temp);
                                d = lhrandom(0.75f, 1);
                                dlightradius = max(dlightradius, 200);
                                dlightcolor[0] += d * 2.0f;
                                dlightcolor[1] += d * 1.5f;
                                dlightcolor[2] += d * 0.5f;
                        }
                        if (e->render.effects & EF_STARDUST)
                        {
                                mins[0] = origin[0] - 16.0f;
                                mins[1] = origin[1] - 16.0f;
                                mins[2] = origin[2] - 16.0f;
                                maxs[0] = origin[0] + 16.0f;
                                maxs[1] = origin[1] + 16.0f;
                                maxs[2] = origin[2] + 16.0f;
                                // how many particles to make
                                temp = (int) (cl.time * 200) - (int) (cl.oldtime * 200);
                                CL_Stardust(mins, maxs, temp);
                                dlightradius = max(dlightradius, 200);
                                dlightcolor[0] += 1.0f;
                                dlightcolor[1] += 0.7f;
                                dlightcolor[2] += 0.3f;
                        }
                        if (e->render.effects & (EF_FLAG1QW | EF_FLAG2QW))
                        {
                                // these are only set on player entities
                                CL_AddQWCTFFlagModel(e, (e->render.effects & EF_FLAG2QW) != 0);
                        }
                }
                // muzzleflash fades over time, and is offset a bit
                if (e->persistent.muzzleflash > 0)
                {
                        Matrix4x4_Transform(&e->render.matrix, muzzleflashorigin, v2);
                        trace = CL_TraceBox(origin, vec3_origin, vec3_origin, v2, true, NULL, SUPERCONTENTS_SOLID | SUPERCONTENTS_SKY, false);
                        tempmatrix = e->render.matrix;
                        tempmatrix.m[0][3] = trace.endpos[0];
                        tempmatrix.m[1][3] = trace.endpos[1];
                        tempmatrix.m[2][3] = trace.endpos[2];
                        CL_AllocDlight(NULL, &tempmatrix, 100, e->persistent.muzzleflash, e->persistent.muzzleflash, e->persistent.muzzleflash, 0, 0, 0, -1, true, 0, 0.25, 0.25, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
                        e->persistent.muzzleflash -= cl.frametime * 10;
                }
                // LordHavoc: if the model has no flags, don't check each
                if (e->render.model && e->render.model->flags && (!e->state_current.tagentity && !(e->render.flags & RENDER_VIEWMODEL)))
                {
                        if (e->render.model->flags & EF_GIB)
                                trailtype = 2;
                        else if (e->render.model->flags & EF_ZOMGIB)
                                trailtype = 4;
                        else if (e->render.model->flags & EF_TRACER)
                        {
                                trailtype = 3;
                                //dlightradius = max(dlightradius, 100);
                                //dlightcolor[0] += 0.25f;
                                //dlightcolor[1] += 1.00f;
                                //dlightcolor[2] += 0.25f;
                        }
                        else if (e->render.model->flags & EF_TRACER2)
                        {
                                trailtype = 5;
                                //dlightradius = max(dlightradius, 100);
                                //dlightcolor[0] += 1.00f;
                                //dlightcolor[1] += 0.60f;
                                //dlightcolor[2] += 0.20f;
                        }
                        else if (e->render.model->flags & EF_ROCKET)
                        {
                                trailtype = 0;
                                dlightradius = max(dlightradius, 200);
                                dlightcolor[0] += 3.00f;
                                dlightcolor[1] += 1.50f;
                                dlightcolor[2] += 0.50f;
                        }
                        else if (e->render.model->flags & EF_GRENADE)
                        {
                                // LordHavoc: e->render.alpha == -1 is for Nehahra dem compatibility (cigar smoke)
                                trailtype = e->render.alpha == -1 ? 7 : 1;
                        }
                        else if (e->render.model->flags & EF_TRACER3)
                        {
                                trailtype = 6;
                                if (gamemode == GAME_PRYDON)
                                {
                                        dlightradius = max(dlightradius, 100);
                                        dlightcolor[0] += 0.30f;
                                        dlightcolor[1] += 0.60f;
                                        dlightcolor[2] += 1.20f;
                                }
                                else
                                {
                                        dlightradius = max(dlightradius, 200);
                                        dlightcolor[0] += 1.20f;
                                        dlightcolor[1] += 0.50f;
                                        dlightcolor[2] += 1.00f;
                                }
                        }
                }
                // LordHavoc: 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), (unsigned char *)&palette_complete[e->state_current.glowcolor], dlightcolor);
                }
                // make the glow dlight
                if (dlightradius > 0 && (dlightcolor[0] || dlightcolor[1] || dlightcolor[2]) && !(e->render.flags & RENDER_VIEWMODEL))
                {
                        //dlightmatrix = e->render.matrix;
                        // hack to make glowing player light shine on their gun
                        //if (e->state_current.number == cl.viewentity/* && !chase_active.integer*/)
                        //      dlightmatrix.m[2][3] += 30;
                        CL_AllocDlight(&e->render, &e->render.matrix, dlightradius, dlightcolor[0], dlightcolor[1], dlightcolor[2], 0, 0, 0, -1, true, 1, 0.25, 0.25, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
                }
                // custom rtlight
                if (e->state_current.lightpflags & PFLAGS_FULLDYNAMIC)
                {
                        float light[4];
                        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?
                        CL_AllocDlight(&e->render, &e->render.matrix, light[3], light[0], light[1], light[2], 0, 0, e->state_current.skin, e->state_current.lightstyle, !(e->state_current.lightpflags & PFLAGS_NOSHADOW), (e->state_current.lightpflags & PFLAGS_CORONA) != 0, 0.25, 0, 1, 1, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
                }
                // do trails
                if (e->render.flags & RENDER_GLOWTRAIL)
                        trailtype = 9;
                if (trailtype >= 0)
                        CL_RocketTrail(e->persistent.trail_origin, origin, trailtype, e->state_current.glowcolor, e);
                VectorCopy(origin, e->persistent.trail_origin);
                // tenebrae's sprites are all additive mode (weird)
                if (gamemode == GAME_TENEBRAE && e->render.model && e->render.model->type == mod_sprite)
                        e->render.effects |= EF_ADDITIVE;
                // player model is only shown with chase_active on
                if (!e->csqc)
                if (e->state_current.number == cl.viewentity)
                        e->render.flags |= RENDER_EXTERIORMODEL;
                // transparent stuff can't be lit during the opaque stage
                if (e->render.effects & (EF_ADDITIVE | EF_NODEPTHTEST) || e->render.alpha < 1)
                        e->render.flags |= RENDER_TRANSPARENT;
                // double sided rendering mode causes backfaces to be visible
                // (mostly useful on transparent stuff)
                if (e->render.effects & EF_DOUBLESIDED)
                        e->render.flags |= RENDER_NOCULLFACE;
                // either fullbright or lit
                if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
                        e->render.flags |= RENDER_LIGHT;
                // hide player shadow during intermission or nehahra movie
                if (!(e->render.effects & EF_NOSHADOW)
                 && !(e->render.flags & (RENDER_VIEWMODEL | RENDER_TRANSPARENT))
                 && (!(e->render.flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
                        e->render.flags |= RENDER_SHADOW;
                // as soon as player is known we can call V_CalcRefDef
                if (!csqc_loaded)
                if (e->state_current.number == cl.viewentity)
                        V_CalcRefdef();
                if (e->render.model && e->render.model->name[0] == '*' && e->render.model->TraceBox)
                        cl.brushmodel_entities[cl.num_brushmodel_entities++] = e->state_current.number;
                // 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.numentities < r_refdef.maxentities)
                        r_refdef.entities[r_refdef.numentities++] = &e->render;
                //if (cl.viewentity && e->state_current.number == cl.viewentity)
                //      Matrix4x4_Print(&e->render.matrix);
        }
}

void CL_RelinkWorld(void)
{
        entity_t *ent = &cl.entities[0];
        cl.brushmodel_entities[cl.num_brushmodel_entities++] = 0;
        // FIXME: this should be done at load
        ent->render.matrix = identitymatrix;
        ent->render.inversematrix = identitymatrix;
        R_LerpAnimation(&ent->render);
        CL_BoundingBoxForEntity(&ent->render);
        ent->render.flags = RENDER_SHADOW;
        if (!r_fullbright.integer)
                ent->render.flags |= RENDER_LIGHT;
        VectorSet(ent->render.colormod, 1, 1, 1);
        r_refdef.worldentity = &ent->render;
        r_refdef.worldmodel = cl.worldmodel;
}

void CL_RelinkCSQCWorld(void)   //[515]: csqc
{
        entity_t *ent = &cl.csqcentities[0];
        if(!csqc_loaded)
                return;
//      cl.brushmodel_entities[cl.num_brushmodel_entities++] = 0;
        // FIXME: this should be done at load
        ent->render.matrix = identitymatrix;
        ent->render.inversematrix = identitymatrix;
        R_LerpAnimation(&ent->render);
        CL_BoundingBoxForEntity(&ent->render);
        ent->render.flags = RENDER_SHADOW;
        if (!r_fullbright.integer)
                ent->render.flags |= RENDER_LIGHT;
        VectorSet(ent->render.colormod, 1, 1, 1);
//      r_refdef.worldentity = &ent->render;
//      r_refdef.worldmodel = cl.worldmodel;
}

static void CL_RelinkStaticEntities(void)
{
        int i;
        entity_t *e;
        for (i = 0, e = cl.static_entities;i < cl.num_static_entities && r_refdef.numentities < r_refdef.maxentities;i++, e++)
        {
                e->render.flags = 0;
                // transparent stuff can't be lit during the opaque stage
                if (e->render.effects & (EF_ADDITIVE | EF_NODEPTHTEST) || e->render.alpha < 1)
                        e->render.flags |= RENDER_TRANSPARENT;
                // either fullbright or lit
                if (!(e->render.effects & EF_FULLBRIGHT) && !r_fullbright.integer)
                        e->render.flags |= RENDER_LIGHT;
                // hide player shadow during intermission or nehahra movie
                if (!(e->render.effects & EF_NOSHADOW) && !(e->render.flags & RENDER_TRANSPARENT))
                        e->render.flags |= RENDER_SHADOW;
                VectorSet(e->render.colormod, 1, 1, 1);
                R_LerpAnimation(&e->render);
                r_refdef.entities[r_refdef.numentities++] = &e->render;
        }
}

/*
===============
CL_RelinkEntities
===============
*/
static void CL_RelinkNetworkEntities(int drawmask)
{
        entity_t *ent;
        int i, k;

        if(!csqc_loaded)
        {
                ent = &cl.viewent;
                ent->state_previous = ent->state_current;
                ent->state_current = defaultstate;
                ent->state_current.time = cl.time;
                ent->state_current.number = -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;
                }

                // reset animation interpolation on weaponmodel if model changed
                if (ent->state_previous.modelindex != ent->state_current.modelindex)
                {
                        ent->render.frame = ent->render.frame1 = ent->render.frame2 = ent->state_current.frame;
                        ent->render.frame1time = ent->render.frame2time = cl.time;
                        ent->render.framelerp = 1;
                }
        }

        // start on the entity after the world
        entitylinkframenumber++;
        if(drawmask & ENTMASK_ENGINE || !csqc_loaded)
        {
                for (i = 1;i < cl.num_entities;i++)
                {
                        if (cl.entities_active[i])
                        {
                                ent = cl.entities + i;
                                if (!(drawmask & ENTMASK_ENGINEVIEWMODELS))
                                if (ent->state_current.flags & RENDER_VIEWMODEL)        //[515]: csqc drawmask
                                {
                                        cl.entities_active[i] = false;
                                        continue;
                                }
                                if (ent->state_current.active)
                                        CL_LinkNetworkEntity(ent);
                                else
                                        cl.entities_active[i] = false;
                        }
                }
        }

        //[515]: csqc
        if(csqc_loaded)
        {
                for (i=1,k=cl.num_csqcentities;k;i++)
                {
                        if (cl.csqcentities_active[i])
                        {
                                --k;
                                ent = cl.csqcentities + i;
                                if (ent->state_current.active)
                                        CL_LinkNetworkEntity(ent);
                                else
                                        cl.csqcentities_active[i] = false;
                        }
                }
        }
        else
                CL_LinkNetworkEntity(&cl.viewent);
}

static void CL_RelinkEffects(void)
{
        int i, intframe;
        cl_effect_t *e;
        entity_t *ent;
        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 = 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 && (ent = CL_NewTempEntity()))
                        {
                                // interpolation stuff
                                ent->render.frame1 = intframe;
                                ent->render.frame2 = intframe + 1;
                                if (ent->render.frame2 >= e->endframe)
                                        ent->render.frame2 = -1; // disappear
                                ent->render.framelerp = frame - intframe;
                                ent->render.frame1time = e->frame1time;
                                ent->render.frame2time = e->frame2time;

                                // normal stuff
                                if(e->modelindex < MAX_MODELS)
                                        ent->render.model = cl.model_precache[e->modelindex];
                                else
                                        ent->render.model = cl.csqc_model_precache[65536-e->modelindex];
                                ent->render.frame = ent->render.frame2;
                                ent->render.colormap = -1; // no special coloring
                                ent->render.alpha = 1;
                                VectorSet(ent->render.colormod, 1, 1, 1);

                                Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, e->origin[0], e->origin[1], e->origin[2], 0, 0, 0, 1);
                                Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
                                R_LerpAnimation(&ent->render);
                                CL_BoundingBoxForEntity(&ent->render);
                        }
                }
        }
}

void CL_RelinkBeams(void)
{
        int i;
        beam_t *b;
        vec3_t dist, org;
        float d;
        entity_t *ent;
        float 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;
                }

                // if coming from the player, update the start position
                //if (b->entity == cl.viewentity)
                //      Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, b->start);
                if (cl_beams_relative.integer && b->entity && cl.entities[b->entity].state_current.active && b->relativestartvalid)
                {
                        entity_render_t *r = &cl.entities[b->entity].render;
                        //Matrix4x4_OriginFromMatrix(&r->matrix, origin);
                        //Matrix4x4_CreateFromQuakeEntity(&matrix, r->origin[0], r->origin[1], r->origin[2] + 16, r->angles[0], r->angles[1], r->angles[2], 1);
                        Matrix4x4_Transform(&r->matrix, b->relativestart, b->start);
                        Matrix4x4_Transform(&r->matrix, b->relativeend, b->end);
                }

                if (b->lightning)
                {
                        if (cl_beams_lightatend.integer)
                        {
                                // FIXME: create a matrix from the beam start/end orientation
                                Matrix4x4_CreateTranslate(&tempmatrix, b->end[0], b->end[1], b->end[2]);
                                CL_AllocDlight (NULL, &tempmatrix, 200, 0.3, 0.7, 1, 0, 0, 0, -1, true, 1, 0.25, 1, 0, 0, LIGHTFLAG_NORMALMODE | LIGHTFLAG_REALTIMEMODE);
                        }
                        if (cl_beams_polygons.integer)
                                continue;
                }

                // calculate pitch and yaw
                VectorSubtract (b->end, b->start, dist);

                if (dist[1] == 0 && dist[0] == 0)
                {
                        yaw = 0;
                        if (dist[2] > 0)
                                pitch = 90;
                        else
                                pitch = 270;
                }
                else
                {
                        yaw = (int) (atan2(dist[1], dist[0]) * 180 / M_PI);
                        if (yaw < 0)
                                yaw += 360;

                        forward = sqrt (dist[0]*dist[0] + dist[1]*dist[1]);
                        pitch = (int) (atan2(dist[2], forward) * 180 / M_PI);
                        if (pitch < 0)
                                pitch += 360;
                }

                // add new entities for the lightning
                VectorCopy (b->start, org);
                d = VectorNormalizeLength(dist);
                while (d > 0)
                {
                        ent = CL_NewTempEntity ();
                        if (!ent)
                                return;
                        //VectorCopy (org, ent->render.origin);
                        ent->render.model = b->model;
                        //ent->render.effects = EF_FULLBRIGHT;
                        //ent->render.angles[0] = pitch;
                        //ent->render.angles[1] = yaw;
                        //ent->render.angles[2] = rand()%360;
                        Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, org[0], org[1], org[2], -pitch, yaw, lhrandom(0, 360), 1);
                        Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
                        R_LerpAnimation(&ent->render);
                        CL_BoundingBoxForEntity(&ent->render);
                        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_t *ent;

        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 (!(ent = CL_NewTempEntity()))
                        continue;

                // normal stuff
                ent->render.model = cl.model_precache[cl.qw_modelindex_spike];
                ent->render.colormap = -1; // no special coloring
                ent->render.alpha = 1;
                VectorSet(ent->render.colormod, 1, 1, 1);

                Matrix4x4_CreateFromQuakeEntity(&ent->render.matrix, v[0], v[1], v[2], v[3], v[4], v[5], 1);
                Matrix4x4_Invert_Simple(&ent->render.inversematrix, &ent->render.matrix);
                R_LerpAnimation(&ent->render);
                CL_BoundingBoxForEntity(&ent->render);
        }
}

void CL_LerpPlayer(float frac)
{
        int i;
        float d;

        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]);
        }

        if (cls.demoplayback)
        {
                // interpolate the angles
                for (i = 0;i < 3;i++)
                {
                        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)
{
        CL_RelinkNetworkEntities(drawmask);
        if(drawmask & ENTMASK_ENGINE)
        {
                // move particles
                CL_MoveParticles();
                R_MoveExplosions();
        }

        // link stuff
        CL_RelinkWorld();
        CL_RelinkCSQCWorld();   //[515]: csqc
        if(drawmask & ENTMASK_ENGINE)
        {
                CL_RelinkStaticEntities();
                CL_RelinkBeams();
                CL_RelinkEffects();
                CL_RelinkQWNails();
        }
}

/*
===============
CL_ReadFromServer

Read all incoming data from the server
===============
*/
extern void CL_ClientMovement_Replay();

int CL_ReadFromServer(void)
{
        CL_ReadDemoMessage();
        CL_SendMove();

        r_refdef.time = cl.time;
        r_refdef.extraupdate = !r_speeds.integer;
        r_refdef.numentities = 0;
        r_refdef.viewentitymatrix = identitymatrix;
        cl.num_brushmodel_entities = 0;

        if (cls.state == ca_connected && cls.signon == SIGNONS)
        {
                // prepare for a new frame
                CL_LerpPlayer(CL_LerpPoint());
                CL_DecayLights();
                CL_ClearTempEntities();
                V_DriftPitch();
                V_FadeViewFlashs();

                // relink network entities (note: this sets up the view!)
                CL_ClientMovement_Replay();
                if(!csqc_loaded)        //[515]: csqc
                {
                        CL_RelinkNetworkEntities(65535);

                        // move particles
                        CL_MoveParticles();
                        R_MoveExplosions();

                        // link stuff
                        CL_RelinkWorld();
                        CL_RelinkCSQCWorld();   //[515]: csqc
                        CL_RelinkStaticEntities();
                        CL_RelinkBeams();
                        CL_RelinkEffects();
                        CL_RelinkQWNails();
                }
                else
                        csqc_frame = true;

                CL_UpdateLights();

                // update view blend
                V_CalcViewBlend();
        }

        return 0;
}

// LordHavoc: pausedemo command
static void CL_PauseDemo_f (void)
{
        cls.demopaused = !cls.demopaused;
        if (cls.demopaused)
                Con_Print("Demo paused\n");
        else
                Con_Print("Demo unpaused\n");
}

/*
======================
CL_Fog_f
======================
*/
static void CL_Fog_f (void)
{
        if (Cmd_Argc () == 1)
        {
                Con_Printf("\"fog\" is \"%f %f %f %f\"\n", fog_density, fog_red, fog_green, fog_blue);
                return;
        }
        fog_density = atof(Cmd_Argv(1));
        fog_red = atof(Cmd_Argv(2));
        fog_green = atof(Cmd_Argv(3));
        fog_blue = atof(Cmd_Argv(4));
}

/*
====================
CL_TimeRefresh_f

For program optimization
====================
*/
static void CL_TimeRefresh_f (void)
{
        int i;
        float timestart, timedelta, oldangles[3];

        r_refdef.extraupdate = false;
        VectorCopy(cl.viewangles, oldangles);
        VectorClear(cl.viewangles);

        timestart = Sys_DoubleTime();
        for (i = 0;i < 128;i++)
        {
                Matrix4x4_CreateFromQuakeEntity(&r_refdef.viewentitymatrix, r_vieworigin[0], r_vieworigin[1], r_vieworigin[2], 0, i / 128.0 * 360.0, 0, 1);
                CL_UpdateScreen();
        }
        timedelta = Sys_DoubleTime() - timestart;

        VectorCopy(oldangles, cl.viewangles);
        Con_Printf("%f seconds (%f fps)\n", timedelta, 128/timedelta);
}

/*
===========
CL_Shutdown
===========
*/
void CL_Shutdown (void)
{
        CL_Particles_Shutdown();
        CL_Parse_Shutdown();

        Mem_FreePool (&cls.permanentmempool);
        Mem_FreePool (&cls.levelmempool);
}

/*
=================
CL_Init
=================
*/
void CL_Init (void)
{
        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.maxentities = MAX_EDICTS + 256 + 512;
        r_refdef.entities = (entity_render_t **)Mem_Alloc(cls.permanentmempool, sizeof(entity_render_t *) * r_refdef.maxentities);

        CL_InitInput ();

//
// register our commands
//
        Cvar_RegisterVariable (&csqc_progname);
        Cvar_RegisterVariable (&csqc_progcrc);

        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 (&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);

        Cmd_AddCommand ("entities", CL_PrintEntities_f, "print information on network entities known to client");
        Cmd_AddCommand ("disconnect", CL_Disconnect_f, "disconnect from server (or disconnect all clients if running a server)");
        Cmd_AddCommand ("record", CL_Record_f, "record a demo");
        Cmd_AddCommand ("stop", CL_Stop_f, "stop recording or playing a demo");
        Cmd_AddCommand ("playdemo", CL_PlayDemo_f, "watch a demo file");
        Cmd_AddCommand ("timedemo", CL_TimeDemo_f, "play back a demo as fast as possible and save statistics to benchmark.log");

        Cmd_AddCommand ("fog", CL_Fog_f, "set global fog parameters (density red green blue)");

        // LordHavoc: added pausedemo
        Cmd_AddCommand ("pausedemo", CL_PauseDemo_f, "pause demo playback (can also safely pause demo recording if using QUAKE, QUAKEDP or NEHAHRAMOVIE protocol, useful for making movies)");

        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_relative);
        Cvar_RegisterVariable(&cl_beams_lightatend);
        Cvar_RegisterVariable(&cl_noplayershadow);

        Cvar_RegisterVariable(&cl_prydoncursor);

        Cvar_RegisterVariable(&cl_deathnoviewmodel);

        // for QW connections
        Cvar_RegisterVariable(&qport);
        Cvar_SetValueQuick(&qport, (rand() * RAND_MAX + rand()) & 0xffff);

        Cmd_AddCommand("timerefresh", CL_TimeRefresh_f, "turn quickly and print rendering statistcs");

        CL_Parse_Init();
        CL_Particles_Init();
        CL_Screen_Init();

        CL_Video_Init();
}