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csprogs.c

#include "quakedef.h"
#include "progsvm.h"
#include "clprogdefs.h"
#include "csprogs.h"
#include "cl_collision.h"
#include "snd_main.h"
#include "clvm_cmds.h"
#include "prvm_cmds.h"

//============================================================================
// Client prog handling
//[515]: omg !!! optimize it ! a lot of hacks here and there also :P

#define CSQC_RETURNVAL  prog->globals.generic[OFS_RETURN]
#define CSQC_BEGIN            csqc_tmpprog=prog;prog=0;PRVM_SetProg(PRVM_CLIENTPROG);
#define CSQC_END        prog=csqc_tmpprog;

static prvm_prog_t *csqc_tmpprog;

void CL_VM_PreventInformationLeaks(void)
{
      if(!cl.csqc_loaded)
            return;
      CSQC_BEGIN
            VM_ClearTraceGlobals();
            PRVM_clientglobalfloat(trace_networkentity) = 0;
      CSQC_END
}

//[515]: these are required funcs
static const char *cl_required_func[] =
{
      "CSQC_Init",
      "CSQC_InputEvent",
      "CSQC_UpdateView",
      "CSQC_ConsoleCommand",
};

static int cl_numrequiredfunc = sizeof(cl_required_func) / sizeof(char*);

#define CL_REQFIELDS (sizeof(cl_reqfields) / sizeof(prvm_required_field_t))

prvm_required_field_t cl_reqfields[] =
{
#define PRVM_DECLARE_serverglobalfloat(x)
#define PRVM_DECLARE_serverglobalvector(x)
#define PRVM_DECLARE_serverglobalstring(x)
#define PRVM_DECLARE_serverglobaledict(x)
#define PRVM_DECLARE_serverglobalfunction(x)
#define PRVM_DECLARE_clientglobalfloat(x)
#define PRVM_DECLARE_clientglobalvector(x)
#define PRVM_DECLARE_clientglobalstring(x)
#define PRVM_DECLARE_clientglobaledict(x)
#define PRVM_DECLARE_clientglobalfunction(x)
#define PRVM_DECLARE_menuglobalfloat(x)
#define PRVM_DECLARE_menuglobalvector(x)
#define PRVM_DECLARE_menuglobalstring(x)
#define PRVM_DECLARE_menuglobaledict(x)
#define PRVM_DECLARE_menuglobalfunction(x)
#define PRVM_DECLARE_serverfieldfloat(x)
#define PRVM_DECLARE_serverfieldvector(x)
#define PRVM_DECLARE_serverfieldstring(x)
#define PRVM_DECLARE_serverfieldedict(x)
#define PRVM_DECLARE_serverfieldfunction(x)
#define PRVM_DECLARE_clientfieldfloat(x) {ev_float, #x },
#define PRVM_DECLARE_clientfieldvector(x) {ev_vector, #x },
#define PRVM_DECLARE_clientfieldstring(x) {ev_string, #x },
#define PRVM_DECLARE_clientfieldedict(x) {ev_entity, #x },
#define PRVM_DECLARE_clientfieldfunction(x) {ev_function, #x },
#define PRVM_DECLARE_menufieldfloat(x)
#define PRVM_DECLARE_menufieldvector(x)
#define PRVM_DECLARE_menufieldstring(x)
#define PRVM_DECLARE_menufieldedict(x)
#define PRVM_DECLARE_menufieldfunction(x)
#define PRVM_DECLARE_serverfunction(x)
#define PRVM_DECLARE_clientfunction(x)
#define PRVM_DECLARE_menufunction(x)
#define PRVM_DECLARE_field(x)
#define PRVM_DECLARE_global(x)
#define PRVM_DECLARE_function(x)
#include "prvm_offsets.h"
#undef PRVM_DECLARE_serverglobalfloat
#undef PRVM_DECLARE_serverglobalvector
#undef PRVM_DECLARE_serverglobalstring
#undef PRVM_DECLARE_serverglobaledict
#undef PRVM_DECLARE_serverglobalfunction
#undef PRVM_DECLARE_clientglobalfloat
#undef PRVM_DECLARE_clientglobalvector
#undef PRVM_DECLARE_clientglobalstring
#undef PRVM_DECLARE_clientglobaledict
#undef PRVM_DECLARE_clientglobalfunction
#undef PRVM_DECLARE_menuglobalfloat
#undef PRVM_DECLARE_menuglobalvector
#undef PRVM_DECLARE_menuglobalstring
#undef PRVM_DECLARE_menuglobaledict
#undef PRVM_DECLARE_menuglobalfunction
#undef PRVM_DECLARE_serverfieldfloat
#undef PRVM_DECLARE_serverfieldvector
#undef PRVM_DECLARE_serverfieldstring
#undef PRVM_DECLARE_serverfieldedict
#undef PRVM_DECLARE_serverfieldfunction
#undef PRVM_DECLARE_clientfieldfloat
#undef PRVM_DECLARE_clientfieldvector
#undef PRVM_DECLARE_clientfieldstring
#undef PRVM_DECLARE_clientfieldedict
#undef PRVM_DECLARE_clientfieldfunction
#undef PRVM_DECLARE_menufieldfloat
#undef PRVM_DECLARE_menufieldvector
#undef PRVM_DECLARE_menufieldstring
#undef PRVM_DECLARE_menufieldedict
#undef PRVM_DECLARE_menufieldfunction
#undef PRVM_DECLARE_serverfunction
#undef PRVM_DECLARE_clientfunction
#undef PRVM_DECLARE_menufunction
#undef PRVM_DECLARE_field
#undef PRVM_DECLARE_global
#undef PRVM_DECLARE_function
};

#define CL_REQGLOBALS (sizeof(cl_reqglobals) / sizeof(prvm_required_field_t))

prvm_required_field_t cl_reqglobals[] =
{
#define PRVM_DECLARE_serverglobalfloat(x)
#define PRVM_DECLARE_serverglobalvector(x)
#define PRVM_DECLARE_serverglobalstring(x)
#define PRVM_DECLARE_serverglobaledict(x)
#define PRVM_DECLARE_serverglobalfunction(x)
#define PRVM_DECLARE_clientglobalfloat(x) {ev_float, #x},
#define PRVM_DECLARE_clientglobalvector(x) {ev_vector, #x},
#define PRVM_DECLARE_clientglobalstring(x) {ev_string, #x},
#define PRVM_DECLARE_clientglobaledict(x) {ev_entity, #x},
#define PRVM_DECLARE_clientglobalfunction(x) {ev_function, #x},
#define PRVM_DECLARE_menuglobalfloat(x)
#define PRVM_DECLARE_menuglobalvector(x)
#define PRVM_DECLARE_menuglobalstring(x)
#define PRVM_DECLARE_menuglobaledict(x)
#define PRVM_DECLARE_menuglobalfunction(x)
#define PRVM_DECLARE_serverfieldfloat(x)
#define PRVM_DECLARE_serverfieldvector(x)
#define PRVM_DECLARE_serverfieldstring(x)
#define PRVM_DECLARE_serverfieldedict(x)
#define PRVM_DECLARE_serverfieldfunction(x)
#define PRVM_DECLARE_clientfieldfloat(x)
#define PRVM_DECLARE_clientfieldvector(x)
#define PRVM_DECLARE_clientfieldstring(x)
#define PRVM_DECLARE_clientfieldedict(x)
#define PRVM_DECLARE_clientfieldfunction(x)
#define PRVM_DECLARE_menufieldfloat(x)
#define PRVM_DECLARE_menufieldvector(x)
#define PRVM_DECLARE_menufieldstring(x)
#define PRVM_DECLARE_menufieldedict(x)
#define PRVM_DECLARE_menufieldfunction(x)
#define PRVM_DECLARE_serverfunction(x)
#define PRVM_DECLARE_clientfunction(x)
#define PRVM_DECLARE_menufunction(x)
#define PRVM_DECLARE_field(x)
#define PRVM_DECLARE_global(x)
#define PRVM_DECLARE_function(x)
#include "prvm_offsets.h"
#undef PRVM_DECLARE_serverglobalfloat
#undef PRVM_DECLARE_serverglobalvector
#undef PRVM_DECLARE_serverglobalstring
#undef PRVM_DECLARE_serverglobaledict
#undef PRVM_DECLARE_serverglobalfunction
#undef PRVM_DECLARE_clientglobalfloat
#undef PRVM_DECLARE_clientglobalvector
#undef PRVM_DECLARE_clientglobalstring
#undef PRVM_DECLARE_clientglobaledict
#undef PRVM_DECLARE_clientglobalfunction
#undef PRVM_DECLARE_menuglobalfloat
#undef PRVM_DECLARE_menuglobalvector
#undef PRVM_DECLARE_menuglobalstring
#undef PRVM_DECLARE_menuglobaledict
#undef PRVM_DECLARE_menuglobalfunction
#undef PRVM_DECLARE_serverfieldfloat
#undef PRVM_DECLARE_serverfieldvector
#undef PRVM_DECLARE_serverfieldstring
#undef PRVM_DECLARE_serverfieldedict
#undef PRVM_DECLARE_serverfieldfunction
#undef PRVM_DECLARE_clientfieldfloat
#undef PRVM_DECLARE_clientfieldvector
#undef PRVM_DECLARE_clientfieldstring
#undef PRVM_DECLARE_clientfieldedict
#undef PRVM_DECLARE_clientfieldfunction
#undef PRVM_DECLARE_menufieldfloat
#undef PRVM_DECLARE_menufieldvector
#undef PRVM_DECLARE_menufieldstring
#undef PRVM_DECLARE_menufieldedict
#undef PRVM_DECLARE_menufieldfunction
#undef PRVM_DECLARE_serverfunction
#undef PRVM_DECLARE_clientfunction
#undef PRVM_DECLARE_menufunction
#undef PRVM_DECLARE_field
#undef PRVM_DECLARE_global
#undef PRVM_DECLARE_function
};

void CL_VM_Error (const char *format, ...) DP_FUNC_PRINTF(1);
void CL_VM_Error (const char *format, ...)      //[515]: hope it will be never executed =)
{
      char errorstring[4096];
      va_list argptr;

      va_start (argptr, format);
      dpvsnprintf (errorstring, sizeof(errorstring), format, argptr);
      va_end (argptr);
//    Con_Printf( "CL_VM_Error: %s\n", errorstring );

      PRVM_Crash();
      cl.csqc_loaded = false;

      Cvar_SetValueQuick(&csqc_progcrc, -1);
      Cvar_SetValueQuick(&csqc_progsize, -1);

//    Host_AbortCurrentFrame();     //[515]: hmmm... if server says it needs csqc then client MUST disconnect
      Host_Error("CL_VM_Error: %s", errorstring);
}
void CL_VM_UpdateDmgGlobals (int dmg_take, int dmg_save, vec3_t dmg_origin)
{
      if(cl.csqc_loaded)
      {
            CSQC_BEGIN
            PRVM_clientglobalfloat(dmg_take) = dmg_take;
            PRVM_clientglobalfloat(dmg_save) = dmg_save;
            VectorCopy(dmg_origin, PRVM_clientglobalvector(dmg_origin));
            CSQC_END
      }
}

void CSQC_UpdateNetworkTimes(double newtime, double oldtime)
{
      if(!cl.csqc_loaded)
            return;
      CSQC_BEGIN
      PRVM_clientglobalfloat(servertime) = newtime;
      PRVM_clientglobalfloat(serverprevtime) = oldtime;
      PRVM_clientglobalfloat(serverdeltatime) = newtime - oldtime;
      CSQC_END
}

//[515]: set globals before calling R_UpdateView, WEIRD CRAP
void CSQC_R_RecalcView (void);
static void CSQC_SetGlobals (void)
{
      CSQC_BEGIN
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobalfloat(frametime) = max(0, cl.time - cl.oldtime);
            PRVM_clientglobalfloat(servercommandframe) = cls.servermovesequence;
            PRVM_clientglobalfloat(clientcommandframe) = cl.movecmd[0].sequence;
            VectorCopy(cl.viewangles, PRVM_clientglobalvector(input_angles));
            // // FIXME: this actually belongs into getinputstate().. [12/17/2007 Black]
            PRVM_clientglobalfloat(input_buttons) = cl.movecmd[0].buttons;
            VectorSet(PRVM_clientglobalvector(input_movevalues), cl.movecmd[0].forwardmove, cl.movecmd[0].sidemove, cl.movecmd[0].upmove);
            VectorCopy(cl.csqc_vieworiginfromengine, cl.csqc_vieworigin);
            VectorCopy(cl.csqc_viewanglesfromengine, cl.csqc_viewangles);

            // LordHavoc: Spike says not to do this, but without pmove_org the
            // CSQC is useless as it can't alter the view origin without
            // completely replacing it
            Matrix4x4_OriginFromMatrix(&cl.entities[cl.viewentity].render.matrix, PRVM_clientglobalvector(pmove_org));
            VectorCopy(cl.movement_velocity, PRVM_clientglobalvector(pmove_vel));
            PRVM_clientglobalfloat(pmove_onground) = cl.onground;
            PRVM_clientglobalfloat(pmove_inwater) = cl.inwater;

            VectorCopy(cl.viewangles, PRVM_clientglobalvector(view_angles));
            VectorCopy(cl.punchangle, PRVM_clientglobalvector(view_punchangle));
            VectorCopy(cl.punchvector, PRVM_clientglobalvector(view_punchvector));
            PRVM_clientglobalfloat(maxclients) = cl.maxclients;

            CSQC_R_RecalcView();
      CSQC_END
}

void CSQC_Predraw (prvm_edict_t *ed)
{
      int b;
      if(!PRVM_clientedictfunction(ed, predraw))
            return;
      b = PRVM_clientglobaledict(self);
      PRVM_clientglobaledict(self) = PRVM_EDICT_TO_PROG(ed);
      PRVM_ExecuteProgram(PRVM_clientedictfunction(ed, predraw), "CSQC_Predraw: NULL function\n");
      PRVM_clientglobaledict(self) = b;
}

void CSQC_Think (prvm_edict_t *ed)
{
      int b;
      if(PRVM_clientedictfunction(ed, think))
      if(PRVM_clientedictfloat(ed, nextthink) && PRVM_clientedictfloat(ed, nextthink) <= PRVM_clientglobalfloat(time))
      {
            PRVM_clientedictfloat(ed, nextthink) = 0;
            b = PRVM_clientglobaledict(self);
            PRVM_clientglobaledict(self) = PRVM_EDICT_TO_PROG(ed);
            PRVM_ExecuteProgram(PRVM_clientedictfunction(ed, think), "CSQC_Think: NULL function\n");
            PRVM_clientglobaledict(self) = b;
      }
}

extern cvar_t cl_noplayershadow;
extern cvar_t r_equalize_entities_fullbright;
qboolean CSQC_AddRenderEdict(prvm_edict_t *ed, int edictnum)
{
      int renderflags;
      int c;
      float scale;
      entity_render_t *entrender;
      dp_model_t *model;

      model = CL_GetModelFromEdict(ed);
      if (!model)
            return false;

      if (edictnum)
      {
            if (r_refdef.scene.numentities >= r_refdef.scene.maxentities)
                  return false;
            entrender = cl.csqcrenderentities + edictnum;
            r_refdef.scene.entities[r_refdef.scene.numentities++] = entrender;
            entrender->entitynumber = edictnum + MAX_EDICTS;
            //entrender->shadertime = 0; // shadertime was set by spawn()
            entrender->flags = 0;
            entrender->alpha = 1;
            entrender->scale = 1;
            VectorSet(entrender->colormod, 1, 1, 1);
            VectorSet(entrender->glowmod, 1, 1, 1);
            entrender->allowdecals = true;
      }
      else
      {
            entrender = CL_NewTempEntity(0);
            if (!entrender)
                  return false;
      }

      entrender->userwavefunc_param[0] = PRVM_clientedictfloat(ed, userwavefunc_param0);
      entrender->userwavefunc_param[1] = PRVM_clientedictfloat(ed, userwavefunc_param1);
      entrender->userwavefunc_param[2] = PRVM_clientedictfloat(ed, userwavefunc_param2);
      entrender->userwavefunc_param[3] = PRVM_clientedictfloat(ed, userwavefunc_param3);

      entrender->model = model;
      entrender->skinnum = (int)PRVM_clientedictfloat(ed, skin);
      entrender->effects |= entrender->model->effects;
      renderflags = (int)PRVM_clientedictfloat(ed, renderflags);
      entrender->alpha = PRVM_clientedictfloat(ed, alpha);
      entrender->scale = scale = PRVM_clientedictfloat(ed, scale);
      VectorCopy(PRVM_clientedictvector(ed, colormod), entrender->colormod);
      VectorCopy(PRVM_clientedictvector(ed, glowmod), entrender->glowmod);
      if(PRVM_clientedictfloat(ed, effects))    entrender->effects |= (int)PRVM_clientedictfloat(ed, effects);
      if (!entrender->alpha)
            entrender->alpha = 1.0f;
      if (!entrender->scale)
            entrender->scale = scale = 1.0f;
      if (!VectorLength2(entrender->colormod))
            VectorSet(entrender->colormod, 1, 1, 1);
      if (!VectorLength2(entrender->glowmod))
            VectorSet(entrender->glowmod, 1, 1, 1);

      // LordHavoc: use the CL_GetTagMatrix function on self to ensure consistent behavior (duplicate code would be bad)
      CL_GetTagMatrix(&entrender->matrix, ed, 0);

      // set up the animation data
      VM_GenerateFrameGroupBlend(ed->priv.server->framegroupblend, ed);
      VM_FrameBlendFromFrameGroupBlend(ed->priv.server->frameblend, ed->priv.server->framegroupblend, model);
      VM_UpdateEdictSkeleton(ed, model, ed->priv.server->frameblend);
      if (PRVM_clientedictfloat(ed, shadertime)) // hack for csprogs.dat files that do not set shadertime, leaves the value at entity spawn time
            entrender->shadertime = PRVM_clientedictfloat(ed, shadertime);

      // transparent offset
      if (renderflags & RF_USETRANSPARENTOFFSET)
            entrender->transparent_offset = PRVM_clientglobalfloat(transparent_offset);

      if(renderflags)
      {
            if(renderflags & RF_VIEWMODEL)      entrender->flags |= RENDER_VIEWMODEL | RENDER_NODEPTHTEST;
            if(renderflags & RF_EXTERNALMODEL)entrender->flags |= RENDER_EXTERIORMODEL;
            if(renderflags & RF_NOCULL)         entrender->flags |= RENDER_NOCULL;
            if(renderflags & RF_DEPTHHACK)      entrender->flags |= RENDER_NODEPTHTEST;
            if(renderflags & RF_ADDITIVE)       entrender->flags |= RENDER_ADDITIVE;
      }

      c = (int)PRVM_clientedictfloat(ed, colormap);
      if (c <= 0)
            CL_SetEntityColormapColors(entrender, -1);
      else if (c <= cl.maxclients && cl.scores != NULL)
            CL_SetEntityColormapColors(entrender, cl.scores[c-1].colors);
      else
            CL_SetEntityColormapColors(entrender, c);

      entrender->flags &= ~(RENDER_SHADOW | RENDER_LIGHT | RENDER_NOSELFSHADOW);
      // either fullbright or lit
      if(!r_fullbright.integer)
      {
            if (!(entrender->effects & EF_FULLBRIGHT) && !(renderflags & RF_FULLBRIGHT))
                  entrender->flags |= RENDER_LIGHT;
            else if(r_equalize_entities_fullbright.integer)
                  entrender->flags |= RENDER_LIGHT | RENDER_EQUALIZE;
      }
      // hide player shadow during intermission or nehahra movie
      if (!(entrender->effects & (EF_NOSHADOW | EF_ADDITIVE | EF_NODEPTHTEST))
       &&  (entrender->alpha >= 1)
       && !(renderflags & RF_NOSHADOW)
       && !(entrender->flags & RENDER_VIEWMODEL)
       && (!(entrender->flags & RENDER_EXTERIORMODEL) || (!cl.intermission && cls.protocol != PROTOCOL_NEHAHRAMOVIE && !cl_noplayershadow.integer)))
            entrender->flags |= RENDER_SHADOW;
      if (entrender->flags & RENDER_VIEWMODEL)
            entrender->flags |= RENDER_NOSELFSHADOW;
      if (entrender->effects & EF_NOSELFSHADOW)
            entrender->flags |= RENDER_NOSELFSHADOW;
      if (entrender->effects & EF_NODEPTHTEST)
            entrender->flags |= RENDER_NODEPTHTEST;
      if (entrender->effects & EF_ADDITIVE)
            entrender->flags |= RENDER_ADDITIVE;
      if (entrender->effects & EF_DOUBLESIDED)
            entrender->flags |= RENDER_DOUBLESIDED;

      // make the other useful stuff
      memcpy(entrender->framegroupblend, ed->priv.server->framegroupblend, sizeof(ed->priv.server->framegroupblend));
      CL_UpdateRenderEntity(entrender);
      // override animation data with full control
      memcpy(entrender->frameblend, ed->priv.server->frameblend, sizeof(ed->priv.server->frameblend));
      if (ed->priv.server->skeleton.relativetransforms)
            entrender->skeleton = &ed->priv.server->skeleton;
      else
            entrender->skeleton = NULL;

      return true;
}

qboolean CL_VM_InputEvent (qboolean down, int key, int ascii)
{
      qboolean r;

      if(!cl.csqc_loaded)
            return false;

      CSQC_BEGIN
            if (!PRVM_clientfunction(CSQC_InputEvent))
                  r = false;
            else
            {
                  PRVM_clientglobalfloat(time) = cl.time;
                  PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
                  PRVM_G_FLOAT(OFS_PARM0) = !down; // 0 is down, 1 is up
                  PRVM_G_FLOAT(OFS_PARM1) = key;
                  PRVM_G_FLOAT(OFS_PARM2) = ascii;
                  PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_InputEvent), "QC function CSQC_InputEvent is missing");
                  r = CSQC_RETURNVAL != 0;
            }
      CSQC_END
      return r;
}

qboolean CL_VM_UpdateView (void)
{
      vec3_t emptyvector;
      emptyvector[0] = 0;
      emptyvector[1] = 0;
      emptyvector[2] = 0;
//    vec3_t oldangles;
      if(!cl.csqc_loaded)
            return false;
      R_TimeReport("pre-UpdateView");
      CSQC_BEGIN
            //VectorCopy(cl.viewangles, oldangles);
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
            CSQC_SetGlobals();
            // clear renderable entity and light lists to prevent crashes if the
            // CSQC_UpdateView function does not call R_ClearScene as it should
            r_refdef.scene.numentities = 0;
            r_refdef.scene.numlights = 0;
            // pass in width and height as parameters (EXT_CSQC_1)
            PRVM_G_FLOAT(OFS_PARM0) = vid.width;
            PRVM_G_FLOAT(OFS_PARM1) = vid.height;
            PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_UpdateView), "QC function CSQC_UpdateView is missing");
            //VectorCopy(oldangles, cl.viewangles);
            // Dresk : Reset Dmg Globals Here
            CL_VM_UpdateDmgGlobals(0, 0, emptyvector);
      CSQC_END
      R_TimeReport("UpdateView");
      return true;
}

extern sizebuf_t vm_tempstringsbuf;
qboolean CL_VM_ConsoleCommand (const char *cmd)
{
      int restorevm_tempstringsbuf_cursize;
      qboolean r = false;
      if(!cl.csqc_loaded)
            return false;
      CSQC_BEGIN
      if (PRVM_clientfunction(CSQC_ConsoleCommand))
      {
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
            restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
            PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(cmd);
            PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_ConsoleCommand), "QC function CSQC_ConsoleCommand is missing");
            vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
            r = CSQC_RETURNVAL != 0;
      }
      CSQC_END
      return r;
}

qboolean CL_VM_Parse_TempEntity (void)
{
      int               t;
      qboolean    r = false;
      if(!cl.csqc_loaded)
            return false;
      CSQC_BEGIN
      if(PRVM_clientfunction(CSQC_Parse_TempEntity))
      {
            t = msg_readcount;
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
            PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Parse_TempEntity), "QC function CSQC_Parse_TempEntity is missing");
            r = CSQC_RETURNVAL != 0;
            if(!r)
            {
                  msg_readcount = t;
                  msg_badread = false;
            }
      }
      CSQC_END
      return r;
}

void CL_VM_Parse_StuffCmd (const char *msg)
{
      int restorevm_tempstringsbuf_cursize;
      if(msg[0] == 'c')
      if(msg[1] == 's')
      if(msg[2] == 'q')
      if(msg[3] == 'c')
      {
            // if this is setting a csqc variable, deprotect csqc_progcrc
            // temporarily so that it can be set by the cvar command,
            // and then reprotect it afterwards
            int crcflags = csqc_progcrc.flags;
            int sizeflags = csqc_progcrc.flags;
            csqc_progcrc.flags &= ~CVAR_READONLY;
            csqc_progsize.flags &= ~CVAR_READONLY;
            Cmd_ExecuteString (msg, src_command);
            csqc_progcrc.flags = crcflags;
            csqc_progsize.flags = sizeflags;
            return;
      }

      if(cls.demoplayback)
      if(!strncmp(msg, "curl --clear_autodownload\ncurl --pak --forthismap --as ", 55))
      {
            // special handling for map download commands
            // run these commands IMMEDIATELY, instead of waiting for a client frame
            // that way, there is no black screen when playing back demos
            // I know this is a really ugly hack, but I can't think of any better way
            // FIXME find the actual CAUSE of this, and make demo playback WAIT
            // until all maps are loaded, then remove this hack

            char buf[MAX_INPUTLINE];
            const char *p, *q;
            size_t l;

            p = msg;

            for(;;)
            {
                  q = strchr(p, '\n');
                  if(q)
                        l = q - p;
                  else
                        l = strlen(p);
                  if(l > sizeof(buf) - 1)
                        l = sizeof(buf) - 1;
                  strlcpy(buf, p, l + 1); // strlcpy needs a + 1 as it includes the newline!

                  Cmd_ExecuteString(buf, src_command);

                  p += l;
                  if(*p == '\n')
                        ++p; // skip the newline and continue
                  else
                        break; // end of string or overflow
            }
            Cmd_ExecuteString("curl --clear_autodownload", src_command); // don't inhibit CSQC loading
            return;
      }

      if(!cl.csqc_loaded)
      {
            Cbuf_AddText(msg);
            return;
      }
      CSQC_BEGIN
      if(PRVM_clientfunction(CSQC_Parse_StuffCmd))
      {
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
            restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
            PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
            PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Parse_StuffCmd), "QC function CSQC_Parse_StuffCmd is missing");
            vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
      }
      else
            Cbuf_AddText(msg);
      CSQC_END
}

static void CL_VM_Parse_Print (const char *msg)
{
      int restorevm_tempstringsbuf_cursize;
      PRVM_clientglobalfloat(time) = cl.time;
      PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
      restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
      PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
      PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Parse_Print), "QC function CSQC_Parse_Print is missing");
      vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
}

void CSQC_AddPrintText (const char *msg)
{
      size_t i;
      if(!cl.csqc_loaded)
      {
            Con_Print(msg);
            return;
      }
      CSQC_BEGIN
      if(PRVM_clientfunction(CSQC_Parse_Print))
      {
            // FIXME: is this bugged?
            i = strlen(msg)-1;
            if(msg[i] != '\n' && msg[i] != '\r')
            {
                  if(strlen(cl.csqc_printtextbuf)+i >= MAX_INPUTLINE)
                  {
                        CL_VM_Parse_Print(cl.csqc_printtextbuf);
                        cl.csqc_printtextbuf[0] = 0;
                  }
                  else
                        strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
                  return;
            }
            strlcat(cl.csqc_printtextbuf, msg, MAX_INPUTLINE);
            CL_VM_Parse_Print(cl.csqc_printtextbuf);
            cl.csqc_printtextbuf[0] = 0;
      }
      else
            Con_Print(msg);
      CSQC_END
}

void CL_VM_Parse_CenterPrint (const char *msg)
{
      int restorevm_tempstringsbuf_cursize;
      if(!cl.csqc_loaded)
      {
            SCR_CenterPrint(msg);
            return;
      }
      CSQC_BEGIN
      if(PRVM_clientfunction(CSQC_Parse_CenterPrint))
      {
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
            restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
            PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(msg);
            PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Parse_CenterPrint), "QC function CSQC_Parse_CenterPrint is missing");
            vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
      }
      else
            SCR_CenterPrint(msg);
      CSQC_END
}

void CL_VM_UpdateIntermissionState (int intermission)
{
      if(cl.csqc_loaded)
      {
            CSQC_BEGIN
            PRVM_clientglobalfloat(intermission) = intermission;
            CSQC_END
      }
}
void CL_VM_UpdateShowingScoresState (int showingscores)
{
      if(cl.csqc_loaded)
      {
            CSQC_BEGIN
            PRVM_clientglobalfloat(sb_showscores) = showingscores;
            CSQC_END
      }
}
qboolean CL_VM_Event_Sound(int sound_num, float volume, int channel, float attenuation, int ent, vec3_t pos)
{
      qboolean r = false;
      if(cl.csqc_loaded)
      {
            CSQC_BEGIN
            if(PRVM_clientfunction(CSQC_Event_Sound))
            {
                  PRVM_clientglobalfloat(time) = cl.time;
                  PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
                  PRVM_G_FLOAT(OFS_PARM0) = ent;
                  PRVM_G_FLOAT(OFS_PARM1) = channel;
                  PRVM_G_INT(OFS_PARM2) = PRVM_SetTempString(cl.sound_name[sound_num] );
                  PRVM_G_FLOAT(OFS_PARM3) = volume;
                  PRVM_G_FLOAT(OFS_PARM4) = attenuation;
                  VectorCopy(pos, PRVM_G_VECTOR(OFS_PARM5) );
                  PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Event_Sound), "QC function CSQC_Event_Sound is missing");
                  r = CSQC_RETURNVAL != 0;
            }
            CSQC_END
      }

      return r;
}
void CL_VM_UpdateCoopDeathmatchGlobals (int gametype)
{
      // Avoid global names for clean(er) coding
      int localcoop;
      int localdeathmatch;

      if(cl.csqc_loaded)
      {
            if(gametype == GAME_COOP)
            {
                  localcoop = 1;
                  localdeathmatch = 0;
            }
            else
            if(gametype == GAME_DEATHMATCH)
            {
                  localcoop = 0;
                  localdeathmatch = 1;
            }
            else
            {
                  // How did the ServerInfo send an unknown gametype?
                  // Better just assign the globals as 0...
                  localcoop = 0;
                  localdeathmatch = 0;
            }
            CSQC_BEGIN
            PRVM_clientglobalfloat(coop) = localcoop;
            PRVM_clientglobalfloat(deathmatch) = localdeathmatch;
            CSQC_END
      }
}
float CL_VM_Event (float event)           //[515]: needed ? I'd say "YES", but don't know for what :D
{
      float r = 0;
      if(!cl.csqc_loaded)
            return 0;
      CSQC_BEGIN
      if(PRVM_clientfunction(CSQC_Event))
      {
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[cl.playerentity];
            PRVM_G_FLOAT(OFS_PARM0) = event;
            PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Event), "QC function CSQC_Event is missing");
            r = CSQC_RETURNVAL;
      }
      CSQC_END
      return r;
}

void CSQC_ReadEntities (void)
{
      unsigned short entnum, oldself, realentnum;
      if(!cl.csqc_loaded)
      {
            Host_Error ("CSQC_ReadEntities: CSQC is not loaded");
            return;
      }

      CSQC_BEGIN
            PRVM_clientglobalfloat(time) = cl.time;
            oldself = PRVM_clientglobaledict(self);
            while(1)
            {
                  entnum = MSG_ReadShort();
                  if(!entnum || msg_badread)
                        break;
                  realentnum = entnum & 0x7FFF;
                  PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum];
                  if(entnum & 0x8000)
                  {
                        if(PRVM_clientglobaledict(self))
                        {
                              PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Ent_Remove), "QC function CSQC_Ent_Remove is missing");
                              cl.csqc_server2csqcentitynumber[realentnum] = 0;
                        }
                        else
                        {
                              // LordHavoc: removing an entity that is already gone on
                              // the csqc side is possible for legitimate reasons (such
                              // as a repeat of the remove message), so no warning is
                              // needed
                              //Con_Printf("Bad csqc_server2csqcentitynumber map\n");     //[515]: never happens ?
                        }
                  }
                  else
                  {
                        if(!PRVM_clientglobaledict(self))
                        {
                              if(!PRVM_clientfunction(CSQC_Ent_Spawn))
                              {
                                    prvm_edict_t      *ed;
                                    ed = PRVM_ED_Alloc();
                                    PRVM_clientedictfloat(ed, entnum) = realentnum;
                                    PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT_TO_PROG(ed);
                              }
                              else
                              {
                                    // entity( float entnum ) CSQC_Ent_Spawn;
                                    // the qc function should set entnum, too (this way it also can return world [2/1/2008 Andreas]
                                    PRVM_G_FLOAT(OFS_PARM0) = (float) realentnum;
                                    // make sure no one gets wrong ideas
                                    PRVM_clientglobaledict(self) = 0;
                                    PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Ent_Spawn), "QC function CSQC_Ent_Spawn is missing");
                                    PRVM_clientglobaledict(self) = cl.csqc_server2csqcentitynumber[realentnum] = PRVM_EDICT( PRVM_G_INT( OFS_RETURN ) );
                              }
                              PRVM_G_FLOAT(OFS_PARM0) = 1;
                              PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Ent_Update), "QC function CSQC_Ent_Update is missing");
                        }
                        else {
                              PRVM_G_FLOAT(OFS_PARM0) = 0;
                              PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Ent_Update), "QC function CSQC_Ent_Update is missing");
                        }
                  }
            }
            PRVM_clientglobaledict(self) = oldself;
      CSQC_END
}

void CL_VM_CB_BeginIncreaseEdicts(void)
{
      // links don't survive the transition, so unlink everything
      World_UnlinkAll(&cl.world);
}

void CL_VM_CB_EndIncreaseEdicts(void)
{
      int i;
      prvm_edict_t *ent;

      // link every entity except world
      for (i = 1, ent = prog->edicts;i < prog->num_edicts;i++, ent++)
            if (!ent->priv.server->free)
                  CL_LinkEdict(ent);
}

void CL_VM_CB_InitEdict(prvm_edict_t *e)
{
      int edictnum = PRVM_NUM_FOR_EDICT(e);
      entity_render_t *entrender;
      CL_ExpandCSQCRenderEntities(edictnum);
      entrender = cl.csqcrenderentities + edictnum;
      e->priv.server->move = false; // don't move on first frame
      memset(entrender, 0, sizeof(*entrender));
      entrender->shadertime = cl.time;
}

extern void R_DecalSystem_Reset(decalsystem_t *decalsystem);

void CL_VM_CB_FreeEdict(prvm_edict_t *ed)
{
      entity_render_t *entrender = cl.csqcrenderentities + PRVM_NUM_FOR_EDICT(ed);
      R_DecalSystem_Reset(&entrender->decalsystem);
      memset(entrender, 0, sizeof(*entrender));
      World_UnlinkEdict(ed);
      memset(ed->fields.vp, 0, prog->entityfields * 4);
      VM_RemoveEdictSkeleton(ed);
      World_Physics_RemoveFromEntity(&cl.world, ed);
      World_Physics_RemoveJointFromEntity(&cl.world, ed);
}

void CL_VM_CB_CountEdicts(void)
{
      int         i;
      prvm_edict_t      *ent;
      int         active = 0, models = 0, solid = 0;

      for (i=0 ; i<prog->num_edicts ; i++)
      {
            ent = PRVM_EDICT_NUM(i);
            if (ent->priv.server->free)
                  continue;
            active++;
            if (PRVM_clientedictfloat(ent, solid))
                  solid++;
            if (PRVM_clientedictstring(ent, model))
                  models++;
      }

      Con_Printf("num_edicts:%3i\n", prog->num_edicts);
      Con_Printf("active    :%3i\n", active);
      Con_Printf("view      :%3i\n", models);
      Con_Printf("touch     :%3i\n", solid);
}

qboolean CL_VM_CB_LoadEdict(prvm_edict_t *ent)
{
      return true;
}

void Cmd_ClearCsqcFuncs (void);

// returns true if the packet is valid, false if end of file is reached
// used for dumping the CSQC download into demo files
qboolean MakeDownloadPacket(const char *filename, unsigned char *data, size_t len, int crc, int cnt, sizebuf_t *buf, int protocol)
{
      int packetsize = buf->maxsize - 7; // byte short long
      int npackets = (len + packetsize - 1) / (packetsize);

      if(protocol == PROTOCOL_QUAKEWORLD)
            return false; // CSQC can't run in QW anyway

      SZ_Clear(buf);
      if(cnt == 0)
      {
            MSG_WriteByte(buf, svc_stufftext);
            MSG_WriteString(buf, va("\ncl_downloadbegin %lu %s\n", (unsigned long)len, filename));
            return true;
      }
      else if(cnt >= 1 && cnt <= npackets)
      {
            unsigned long thispacketoffset = (cnt - 1) * packetsize;
            int thispacketsize = len - thispacketoffset;
            if(thispacketsize > packetsize)
                  thispacketsize = packetsize;

            MSG_WriteByte(buf, svc_downloaddata);
            MSG_WriteLong(buf, thispacketoffset);
            MSG_WriteShort(buf, thispacketsize);
            SZ_Write(buf, data + thispacketoffset, thispacketsize);

            return true;
      }
      else if(cnt == npackets + 1)
      {
            MSG_WriteByte(buf, svc_stufftext);
            MSG_WriteString(buf, va("\ncl_downloadfinished %lu %d\n", (unsigned long)len, crc));
            return true;
      }
      return false;
}

void CL_VM_Init (void)
{
      const char* csprogsfn;
      unsigned char *csprogsdata;
      fs_offset_t csprogsdatasize;
      int csprogsdatacrc, requiredcrc;
      int requiredsize;

      // reset csqc_progcrc after reading it, so that changing servers doesn't
      // expect csqc on the next server
      requiredcrc = csqc_progcrc.integer;
      requiredsize = csqc_progsize.integer;
      Cvar_SetValueQuick(&csqc_progcrc, -1);
      Cvar_SetValueQuick(&csqc_progsize, -1);

      // if the server is not requesting a csprogs, then we're done here
      if (requiredcrc < 0)
            return;

      // see if the requested csprogs.dat file matches the requested crc
      csprogsdatacrc = -1;
      csprogsfn = va("dlcache/%s.%i.%i", csqc_progname.string, requiredsize, requiredcrc);
      csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
      if (!csprogsdata)
      {
            csprogsfn = csqc_progname.string;
            csprogsdata = FS_LoadFile(csprogsfn, tempmempool, true, &csprogsdatasize);
      }
      if (csprogsdata)
      {
            csprogsdatacrc = CRC_Block(csprogsdata, (size_t)csprogsdatasize);
            if (csprogsdatacrc != requiredcrc || csprogsdatasize != requiredsize)
            {
                  if (cls.demoplayback)
                  {
                        Con_Printf("^1Warning: Your %s is not the same version as the demo was recorded with (CRC/size are %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
                        // Mem_Free(csprogsdata);
                        // return;
                        // We WANT to continue here, and play the demo with different csprogs!
                        // After all, this is just a warning. Sure things may go wrong from here.
                  }
                  else
                  {
                        Mem_Free(csprogsdata);
                        Con_Printf("^1Your %s is not the same version as the server (CRC is %i/%i but should be %i/%i)\n", csqc_progname.string, csprogsdatacrc, (int)csprogsdatasize, requiredcrc, requiredsize);
                        CL_Disconnect();
                        return;
                  }
            }
      }
      else
      {
            if (requiredcrc >= 0)
            {
                  if (cls.demoplayback)
                        Con_Printf("CL_VM_Init: demo requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
                  else
                        Con_Printf("CL_VM_Init: server requires CSQC, but \"%s\" wasn't found\n", csqc_progname.string);
                  CL_Disconnect();
            }
            return;
      }

      PRVM_Begin;
      PRVM_InitProg(PRVM_CLIENTPROG);

      // allocate the mempools
      prog->progs_mempool = Mem_AllocPool(csqc_progname.string, 0, NULL);
      prog->edictprivate_size = 0; // no private struct used
      prog->name = CL_NAME;
      prog->num_edicts = 1;
      prog->max_edicts = 512;
      prog->limit_edicts = CL_MAX_EDICTS;
      prog->reserved_edicts = 0;
      prog->edictprivate_size = sizeof(edict_engineprivate_t);
      // TODO: add a shared extension string #define and add real support for csqc extension strings [12/5/2007 Black]
      prog->extensionstring = vm_sv_extensions;
      prog->builtins = vm_cl_builtins;
      prog->numbuiltins = vm_cl_numbuiltins;
      prog->begin_increase_edicts = CL_VM_CB_BeginIncreaseEdicts;
      prog->end_increase_edicts = CL_VM_CB_EndIncreaseEdicts;
      prog->init_edict = CL_VM_CB_InitEdict;
      prog->free_edict = CL_VM_CB_FreeEdict;
      prog->count_edicts = CL_VM_CB_CountEdicts;
      prog->load_edict = CL_VM_CB_LoadEdict;
      prog->init_cmd = VM_CL_Cmd_Init;
      prog->reset_cmd = VM_CL_Cmd_Reset;
      prog->error_cmd = CL_VM_Error;
      prog->ExecuteProgram = CLVM_ExecuteProgram;

      PRVM_LoadProgs(csprogsfn, cl_numrequiredfunc, cl_required_func, CL_REQFIELDS, cl_reqfields, CL_REQGLOBALS, cl_reqglobals);

      if (!prog->loaded)
      {
            CL_VM_Error("CSQC %s ^2failed to load\n", csprogsfn);
            if(!sv.active)
                  CL_Disconnect();
            Mem_Free(csprogsdata);
            return;
      }

      Con_DPrintf("CSQC %s ^5loaded (crc=%i, size=%i)\n", csprogsfn, csprogsdatacrc, (int)csprogsdatasize);

      if(cls.demorecording)
      {
            if(cls.demo_lastcsprogssize != csprogsdatasize || cls.demo_lastcsprogscrc != csprogsdatacrc)
            {
                  int i;
                  static char buf[NET_MAXMESSAGE];
                  sizebuf_t sb;
                  unsigned char *demobuf; fs_offset_t demofilesize;

                  sb.data = (unsigned char *) buf;
                  sb.maxsize = sizeof(buf);
                  i = 0;

                  CL_CutDemo(&demobuf, &demofilesize);
                  while(MakeDownloadPacket(csqc_progname.string, csprogsdata, (size_t)csprogsdatasize, csprogsdatacrc, i++, &sb, cls.protocol))
                        CL_WriteDemoMessage(&sb);
                  CL_PasteDemo(&demobuf, &demofilesize);

                  cls.demo_lastcsprogssize = csprogsdatasize;
                  cls.demo_lastcsprogscrc = csprogsdatacrc;
            }
      }
      Mem_Free(csprogsdata);

      // check if OP_STATE animation is possible in this dat file
      if (prog->fieldoffsets.nextthink >= 0 && prog->fieldoffsets.frame >= 0 && prog->fieldoffsets.think >= 0 && prog->globaloffsets.self >= 0)
            prog->flag |= PRVM_OP_STATE;

      // set time
      PRVM_clientglobalfloat(time) = cl.time;
      PRVM_clientglobaledict(self) = 0;

      PRVM_clientglobalstring(mapname) = PRVM_SetEngineString(cl.worldname);
      PRVM_clientglobalfloat(player_localentnum) = cl.playerentity;

      // set map description (use world entity 0)
      PRVM_clientedictstring(prog->edicts, message) = PRVM_SetEngineString(cl.worldmessage);
      VectorCopy(cl.world.mins, PRVM_clientedictvector(prog->edicts, mins));
      VectorCopy(cl.world.maxs, PRVM_clientedictvector(prog->edicts, maxs));

      // call the prog init
      PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Init), "QC function CSQC_Init is missing");

      PRVM_End;
      cl.csqc_loaded = true;

      cl.csqc_vidvars.drawcrosshair = false;
      cl.csqc_vidvars.drawenginesbar = false;

      // Update Coop and Deathmatch Globals (at this point the client knows them from ServerInfo)
      CL_VM_UpdateCoopDeathmatchGlobals(cl.gametype);
}

void CL_VM_ShutDown (void)
{
      Cmd_ClearCsqcFuncs();
      //Cvar_SetValueQuick(&csqc_progcrc, -1);
      //Cvar_SetValueQuick(&csqc_progsize, -1);
      if(!cl.csqc_loaded)
            return;
      CSQC_BEGIN
            PRVM_clientglobalfloat(time) = cl.time;
            PRVM_clientglobaledict(self) = 0;
            if (PRVM_clientfunction(CSQC_Shutdown))
                  PRVM_ExecuteProgram(PRVM_clientfunction(CSQC_Shutdown), "QC function CSQC_Shutdown is missing");
            PRVM_ResetProg();
      CSQC_END
      Con_DPrint("CSQC ^1unloaded\n");
      cl.csqc_loaded = false;
}

qboolean CL_VM_GetEntitySoundOrigin(int entnum, vec3_t out)
{
      prvm_edict_t *ed;
      dp_model_t *mod;
      matrix4x4_t matrix;
      qboolean r = 0;

      CSQC_BEGIN;

      // FIXME consider attachments here!

      ed = PRVM_EDICT_NUM(entnum - MAX_EDICTS);

      if(!ed->priv.required->free)
      {
            mod = CL_GetModelFromEdict(ed);
            VectorCopy(PRVM_clientedictvector(ed, origin), out);
            if(CL_GetTagMatrix (&matrix, ed, 0) == 0)
                  Matrix4x4_OriginFromMatrix(&matrix, out);
            if (mod && mod->soundfromcenter)
                  VectorMAMAM(1.0f, out, 0.5f, mod->normalmins, 0.5f, mod->normalmaxs, out);
            r = 1;
      }

      CSQC_END;

      return r;
}

qboolean CL_VM_TransformView(int entnum, matrix4x4_t *viewmatrix, mplane_t *clipplane, vec3_t visorigin)
{
      qboolean ret = false;
      prvm_edict_t *ed;
      vec3_t forward, left, up, origin, ang;
      matrix4x4_t mat, matq;

      CSQC_BEGIN
            ed = PRVM_EDICT_NUM(entnum);
            // camera:
            //   camera_transform
            if(PRVM_clientedictfunction(ed, camera_transform))
            {
                  ret = true;
                  if(viewmatrix || clipplane || visorigin)
                  {
                        Matrix4x4_ToVectors(viewmatrix, forward, left, up, origin);
                        AnglesFromVectors(ang, forward, up, false);
                        PRVM_clientglobalfloat(time) = cl.time;
                        PRVM_clientglobaledict(self) = entnum;
                        VectorCopy(origin, PRVM_G_VECTOR(OFS_PARM0));
                        VectorCopy(ang, PRVM_G_VECTOR(OFS_PARM1));
                        VectorCopy(forward, PRVM_clientglobalvector(v_forward));
                        VectorScale(left, -1, PRVM_clientglobalvector(v_right));
                        VectorCopy(up, PRVM_clientglobalvector(v_up));
                        VectorCopy(origin, PRVM_clientglobalvector(trace_endpos));
                        PRVM_ExecuteProgram(PRVM_clientedictfunction(ed, camera_transform), "QC function e.camera_transform is missing");
                        VectorCopy(PRVM_G_VECTOR(OFS_RETURN), origin);
                        VectorCopy(PRVM_clientglobalvector(v_forward), forward);
                        VectorScale(PRVM_clientglobalvector(v_right), -1, left);
                        VectorCopy(PRVM_clientglobalvector(v_up), up);
                        VectorCopy(PRVM_clientglobalvector(trace_endpos), visorigin);
                        Matrix4x4_Invert_Full(&mat, viewmatrix);
                        Matrix4x4_FromVectors(viewmatrix, forward, left, up, origin);
                        Matrix4x4_Concat(&matq, viewmatrix, &mat);
                        Matrix4x4_TransformPositivePlane(&matq, clipplane->normal[0], clipplane->normal[1], clipplane->normal[2], clipplane->dist, &clipplane->normal[0]);
                  }
            }
      CSQC_END

      return ret;
}

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