]> de.git.xonotic.org Git - xonotic/darkplaces.git/blobdiff - prvm_cmds.c
make getsurface* functions shared between VMs
[xonotic/darkplaces.git] / prvm_cmds.c
index 696ffea0439643df575f5b301f9025f7e9dd2c91..145efd8a853cb4c9f8624e0876c97845f4d8f41d 100644 (file)
 #include "libcurl.h"
 #include <time.h>
 
+#include "cl_collision.h"
+#include "clvm_cmds.h"
+#include "ft2.h"
+
 extern cvar_t prvm_backtraceforwarnings;
 
 // LordHavoc: changed this to NOT use a return statement, so that it can be used in functions that must return a value
@@ -23,7 +27,7 @@ void VM_Warning(const char *fmt, ...)
        dpvsnprintf(msg,sizeof(msg),fmt,argptr);
        va_end(argptr);
 
-       Con_Print(msg);
+       Con_DPrint(msg);
 
        // TODO: either add a cvar/cmd to control the state dumping or replace some of the calls with Con_Printf [9/13/2006 Black]
        if(prvm_backtraceforwarnings.integer && recursive != realtime) // NOTE: this compares to the time, just in case if PRVM_PrintState causes a Host_Error and keeps recursive set
@@ -45,10 +49,193 @@ void VM_Warning(const char *fmt, ...)
 
 void VM_CheckEmptyString (const char *s)
 {
-       if (s[0] <= ' ')
+       if (ISWHITESPACE(s[0]))
                PRVM_ERROR ("%s: Bad string", PRVM_NAME);
 }
 
+void VM_GenerateFrameGroupBlend(framegroupblend_t *framegroupblend, const prvm_edict_t *ed)
+{
+       prvm_eval_t *val;
+       // self.frame is the interpolation target (new frame)
+       // self.frame1time is the animation base time for the interpolation target
+       // self.frame2 is the interpolation start (previous frame)
+       // self.frame2time is the animation base time for the interpolation start
+       // self.lerpfrac is the interpolation strength for self.frame2
+       // self.lerpfrac3 is the interpolation strength for self.frame3
+       // self.lerpfrac4 is the interpolation strength for self.frame4
+       // pitch angle on a player model where the animator set up 5 sets of
+       // animations and the csqc simply lerps between sets)
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame))) framegroupblend[0].frame = (int) val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2))) framegroupblend[1].frame = (int) val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3))) framegroupblend[2].frame = (int) val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4))) framegroupblend[3].frame = (int) val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame1time))) framegroupblend[0].start = val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame2time))) framegroupblend[1].start = val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame3time))) framegroupblend[2].start = val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.frame4time))) framegroupblend[3].start = val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac))) framegroupblend[1].lerp = val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac3))) framegroupblend[2].lerp = val->_float;
+       if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.lerpfrac4))) framegroupblend[3].lerp = val->_float;
+       // assume that the (missing) lerpfrac1 is whatever remains after lerpfrac2+lerpfrac3+lerpfrac4 are summed
+       framegroupblend[0].lerp = 1 - framegroupblend[1].lerp - framegroupblend[2].lerp - framegroupblend[3].lerp;
+}
+
+// LordHavoc: quite tempting to break apart this function to reuse the
+//            duplicated code, but I suspect it is better for performance
+//            this way
+void VM_FrameBlendFromFrameGroupBlend(frameblend_t *frameblend, const framegroupblend_t *framegroupblend, const dp_model_t *model)
+{
+       int sub2, numframes, f, i, k;
+       int isfirstframegroup = true;
+       int nolerp;
+       double sublerp, lerp, d;
+       const animscene_t *scene;
+       const framegroupblend_t *g;
+       frameblend_t *blend = frameblend;
+
+       memset(blend, 0, MAX_FRAMEBLENDS * sizeof(*blend));
+
+       if (!model || !model->surfmesh.isanimated)
+       {
+               blend[0].lerp = 1;
+               return;
+       }
+
+       nolerp = (model->type == mod_sprite) ? !r_lerpsprites.integer : !r_lerpmodels.integer;
+       numframes = model->numframes;
+       for (k = 0, g = framegroupblend;k < MAX_FRAMEGROUPBLENDS;k++, g++)
+       {
+               f = g->frame;
+               if ((unsigned int)f >= (unsigned int)numframes)
+               {
+                       Con_DPrintf("VM_FrameBlendFromFrameGroupBlend: no such frame %d in model %s\n", f, model->name);
+                       f = 0;
+               }
+               d = lerp = g->lerp;
+               if (lerp <= 0)
+                       continue;
+               if (nolerp)
+               {
+                       if (isfirstframegroup)
+                       {
+                               d = lerp = 1;
+                               isfirstframegroup = false;
+                       }
+                       else
+                               continue;
+               }
+               if (model->animscenes)
+               {
+                       scene = model->animscenes + f;
+                       f = scene->firstframe;
+                       if (scene->framecount > 1)
+                       {
+                               // this code path is only used on .zym models and torches
+                               sublerp = scene->framerate * (cl.time - g->start);
+                               f = (int) floor(sublerp);
+                               sublerp -= f;
+                               sub2 = f + 1;
+                               if (sublerp < (1.0 / 65536.0f))
+                                       sublerp = 0;
+                               if (sublerp > (65535.0f / 65536.0f))
+                                       sublerp = 1;
+                               if (nolerp)
+                                       sublerp = 0;
+                               if (scene->loop)
+                               {
+                                       f = (f % scene->framecount);
+                                       sub2 = (sub2 % scene->framecount);
+                               }
+                               f = bound(0, f, (scene->framecount - 1)) + scene->firstframe;
+                               sub2 = bound(0, sub2, (scene->framecount - 1)) + scene->firstframe;
+                               d = sublerp * lerp;
+                               // two framelerps produced from one animation
+                               if (d > 0)
+                               {
+                                       for (i = 0;i < MAX_FRAMEBLENDS;i++)
+                                       {
+                                               if (blend[i].lerp <= 0 || blend[i].subframe == sub2)
+                                               {
+                                                       blend[i].subframe = sub2;
+                                                       blend[i].lerp += d;
+                                                       break;
+                                               }
+                                       }
+                               }
+                               d = (1 - sublerp) * lerp;
+                       }
+               }
+               if (d > 0)
+               {
+                       for (i = 0;i < MAX_FRAMEBLENDS;i++)
+                       {
+                               if (blend[i].lerp <= 0 || blend[i].subframe == f)
+                               {
+                                       blend[i].subframe = f;
+                                       blend[i].lerp += d;
+                                       break;
+                               }
+                       }
+               }
+       }
+}
+
+void VM_UpdateEdictSkeleton(prvm_edict_t *ed, const dp_model_t *edmodel, const frameblend_t *frameblend)
+{
+       if (ed->priv.server->skeleton.model != edmodel)
+       {
+               VM_RemoveEdictSkeleton(ed);
+               ed->priv.server->skeleton.model = edmodel;
+       }
+       if (!ed->priv.server->skeleton.relativetransforms && ed->priv.server->skeleton.model && ed->priv.server->skeleton.model->num_bones)
+               ed->priv.server->skeleton.relativetransforms = Mem_Alloc(prog->progs_mempool, ed->priv.server->skeleton.model->num_bones * sizeof(matrix4x4_t));
+       if (ed->priv.server->skeleton.relativetransforms)
+       {
+               int skeletonindex = 0;
+               skeleton_t *skeleton;
+               prvm_eval_t *val;
+               if ((val = PRVM_EDICTFIELDVALUE(ed, prog->fieldoffsets.skeletonindex))) skeletonindex = (int)val->_float;
+               if (skeletonindex > 0 && skeletonindex < MAX_EDICTS && (skeleton = prog->skeletons[skeletonindex]) && skeleton->model->num_bones == ed->priv.server->skeleton.model->num_bones)
+               {
+                       // custom skeleton controlled by the game (FTE_CSQC_SKELETONOBJECTS)
+                       memcpy(ed->priv.server->skeleton.relativetransforms, skeleton->relativetransforms, ed->priv.server->skeleton.model->num_bones * sizeof(matrix4x4_t));
+               }
+               else
+               {
+                       // generated skeleton from frame animation
+                       int blendindex;
+                       int bonenum;
+                       int numbones = ed->priv.server->skeleton.model->num_bones;
+                       const short *framebones6s;
+                       float lerp;
+                       float scale = ed->priv.server->skeleton.model->num_posescale;
+                       matrix4x4_t *relativetransforms = ed->priv.server->skeleton.relativetransforms;
+                       matrix4x4_t matrix;
+                       memset(relativetransforms, 0, numbones * sizeof(matrix4x4_t));
+                       for (blendindex = 0;blendindex < MAX_FRAMEBLENDS && frameblend[blendindex].lerp > 0;blendindex++)
+                       {
+                               lerp = frameblend[blendindex].lerp;
+                               framebones6s = ed->priv.server->skeleton.model->data_poses6s + 6 * frameblend[blendindex].subframe * numbones;
+                               for (bonenum = 0;bonenum < numbones;bonenum++)
+                               {
+                                       Matrix4x4_FromBonePose6s(&matrix, scale, framebones6s + 6 * bonenum);
+                                       Matrix4x4_Accumulate(&ed->priv.server->skeleton.relativetransforms[bonenum], &matrix, lerp);
+                               }
+                       }
+               }
+       }
+}
+
+void VM_RemoveEdictSkeleton(prvm_edict_t *ed)
+{
+       if (ed->priv.server->skeleton.relativetransforms)
+               Mem_Free(ed->priv.server->skeleton.relativetransforms);
+       memset(&ed->priv.server->skeleton, 0, sizeof(ed->priv.server->skeleton));
+}
+
+
+
+
 //============================================================================
 //BUILT-IN FUNCTIONS
 
@@ -413,6 +600,13 @@ void VM_localcmd (void)
        Cbuf_AddText(string);
 }
 
+static qboolean PRVM_Cvar_ReadOk(const char *string)
+{
+       cvar_t *cvar;
+       cvar = Cvar_FindVar(string);
+       return ((cvar) && ((cvar->flags & CVAR_PRIVATE) == 0));
+}
+
 /*
 =================
 VM_cvar
@@ -426,7 +620,7 @@ void VM_cvar (void)
        VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar);
        VM_VarString(0, string, sizeof(string));
        VM_CheckEmptyString(string);
-       PRVM_G_FLOAT(OFS_RETURN) = Cvar_VariableValue(string);
+       PRVM_G_FLOAT(OFS_RETURN) = PRVM_Cvar_ReadOk(string) ? Cvar_VariableValue(string) : 0;
 }
 
 /*
@@ -439,6 +633,7 @@ float CVAR_TYPEFLAG_SAVED = 2;
 float CVAR_TYPEFLAG_PRIVATE = 4;
 float CVAR_TYPEFLAG_ENGINE = 8;
 float CVAR_TYPEFLAG_HASDESCRIPTION = 16;
+float CVAR_TYPEFLAG_READONLY = 32;
 =================
 */
 void VM_cvar_type (void)
@@ -466,8 +661,10 @@ void VM_cvar_type (void)
                ret |= 4; // CVAR_TYPE_PRIVATE
        if(!(cvar->flags & CVAR_ALLOCATED))
                ret |= 8; // CVAR_TYPE_ENGINE
-       if(strcmp(cvar->description, "custom cvar")) // has to match Cvar_Get's placeholder string
+       if(cvar->description != cvar_dummy_description)
                ret |= 16; // CVAR_TYPE_HASDESCRIPTION
+       if(cvar->flags & CVAR_READONLY)
+               ret |= 32; // CVAR_TYPE_READONLY
        
        PRVM_G_FLOAT(OFS_RETURN) = ret;
 }
@@ -485,7 +682,7 @@ void VM_cvar_string(void)
        VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar_string);
        VM_VarString(0, string, sizeof(string));
        VM_CheckEmptyString(string);
-       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(Cvar_VariableString(string));
+       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(PRVM_Cvar_ReadOk(string) ? Cvar_VariableString(string) : "");
 }
 
 
@@ -504,6 +701,22 @@ void VM_cvar_defstring (void)
        VM_CheckEmptyString(string);
        PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(Cvar_VariableDefString(string));
 }
+
+/*
+========================
+VM_cvar_defstring
+
+const string   VM_cvar_description (string, ...)
+========================
+*/
+void VM_cvar_description (void)
+{
+       char string[VM_STRINGTEMP_LENGTH];
+       VM_SAFEPARMCOUNTRANGE(1,8,VM_cvar_description);
+       VM_VarString(0, string, sizeof(string));
+       VM_CheckEmptyString(string);
+       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(Cvar_VariableDescription(string));
+}
 /*
 =================
 VM_cvar_set
@@ -533,15 +746,12 @@ void VM_dprint (void)
 {
        char string[VM_STRINGTEMP_LENGTH];
        VM_SAFEPARMCOUNTRANGE(1, 8, VM_dprint);
-       if (developer.integer)
-       {
-               VM_VarString(0, string, sizeof(string));
+       VM_VarString(0, string, sizeof(string));
 #if 1
-               Con_Printf("%s", string);
+       Con_DPrintf("%s", string);
 #else
-               Con_Printf("%s: %s", PRVM_NAME, string);
+       Con_DPrintf("%s: %s", PRVM_NAME, string);
 #endif
-       }
 }
 
 /*
@@ -763,12 +973,12 @@ void VM_remove (void)
        ed = PRVM_G_EDICT(OFS_PARM0);
        if( PRVM_NUM_FOR_EDICT(ed) <= prog->reserved_edicts )
        {
-               if (developer.integer >= 1)
+               if (developer.integer)
                        VM_Warning( "VM_remove: tried to remove the null entity or a reserved entity!\n" );
        }
        else if( ed->priv.required->free )
        {
-               if (developer.integer >= 1)
+               if (developer.integer)
                        VM_Warning( "VM_remove: tried to remove an already freed entity!\n" );
        }
        else
@@ -872,11 +1082,16 @@ void VM_findchain (void)
        int             f;
        const char      *s, *t;
        prvm_edict_t    *ent, *chain;
+       int chainfield;
 
-       VM_SAFEPARMCOUNT(2,VM_findchain);
+       VM_SAFEPARMCOUNTRANGE(2,3,VM_findchain);
 
-       if (prog->fieldoffsets.chain < 0)
-               PRVM_ERROR("VM_findchain: %s doesnt have a chain field !", PRVM_NAME);
+       if(prog->argc == 3)
+               chainfield = PRVM_G_INT(OFS_PARM2);
+       else
+               chainfield = prog->fieldoffsets.chain;
+       if (chainfield < 0)
+               PRVM_ERROR("VM_findchain: %s doesnt have the specified chain field !", PRVM_NAME);
 
        chain = prog->edicts;
 
@@ -899,7 +1114,7 @@ void VM_findchain (void)
                if (strcmp(t,s))
                        continue;
 
-               PRVM_EDICTFIELDVALUE(ent,prog->fieldoffsets.chain)->edict = PRVM_NUM_FOR_EDICT(chain);
+               PRVM_EDICTFIELDVALUE(ent,chainfield)->edict = PRVM_NUM_FOR_EDICT(chain);
                chain = ent;
        }
 
@@ -922,11 +1137,16 @@ void VM_findchainfloat (void)
        int             f;
        float   s;
        prvm_edict_t    *ent, *chain;
+       int chainfield;
 
-       VM_SAFEPARMCOUNT(2, VM_findchainfloat);
+       VM_SAFEPARMCOUNTRANGE(2, 3, VM_findchainfloat);
 
-       if (prog->fieldoffsets.chain < 0)
-               PRVM_ERROR("VM_findchainfloat: %s doesnt have a chain field !", PRVM_NAME);
+       if(prog->argc == 3)
+               chainfield = PRVM_G_INT(OFS_PARM2);
+       else
+               chainfield = prog->fieldoffsets.chain;
+       if (chainfield < 0)
+               PRVM_ERROR("VM_findchain: %s doesnt have the specified chain field !", PRVM_NAME);
 
        chain = (prvm_edict_t *)prog->edicts;
 
@@ -942,7 +1162,7 @@ void VM_findchainfloat (void)
                if (PRVM_E_FLOAT(ent,f) != s)
                        continue;
 
-               PRVM_EDICTFIELDVALUE(ent,prog->fieldoffsets.chain)->edict = PRVM_EDICT_TO_PROG(chain);
+               PRVM_EDICTFIELDVALUE(ent,chainfield)->edict = PRVM_EDICT_TO_PROG(chain);
                chain = ent;
        }
 
@@ -1003,11 +1223,16 @@ void VM_findchainflags (void)
        int             f;
        int             s;
        prvm_edict_t    *ent, *chain;
+       int chainfield;
 
-       VM_SAFEPARMCOUNT(2, VM_findchainflags);
+       VM_SAFEPARMCOUNTRANGE(2, 3, VM_findchainflags);
 
-       if (prog->fieldoffsets.chain < 0)
-               PRVM_ERROR("VM_findchainflags: %s doesnt have a chain field !", PRVM_NAME);
+       if(prog->argc == 3)
+               chainfield = PRVM_G_INT(OFS_PARM2);
+       else
+               chainfield = prog->fieldoffsets.chain;
+       if (chainfield < 0)
+               PRVM_ERROR("VM_findchain: %s doesnt have the specified chain field !", PRVM_NAME);
 
        chain = (prvm_edict_t *)prog->edicts;
 
@@ -1025,7 +1250,7 @@ void VM_findchainflags (void)
                if (!((int)PRVM_E_FLOAT(ent,f) & s))
                        continue;
 
-               PRVM_EDICTFIELDVALUE(ent,prog->fieldoffsets.chain)->edict = PRVM_EDICT_TO_PROG(chain);
+               PRVM_EDICTFIELDVALUE(ent,chainfield)->edict = PRVM_EDICT_TO_PROG(chain);
                chain = ent;
        }
 
@@ -1047,9 +1272,9 @@ void VM_precache_sound (void)
 
        s = PRVM_G_STRING(OFS_PARM0);
        PRVM_G_INT(OFS_RETURN) = PRVM_G_INT(OFS_PARM0);
-       VM_CheckEmptyString(s);
+       //VM_CheckEmptyString(s);
 
-       if(snd_initialized.integer && !S_PrecacheSound(s, true, false))
+       if(snd_initialized.integer && !S_PrecacheSound(s, true, true))
        {
                VM_Warning("VM_precache_sound: Failed to load %s for %s\n", s, PRVM_NAME);
                return;
@@ -1439,7 +1664,7 @@ void VM_registercvar (void)
                return;
        }
 
-       Cvar_Get(name, value, flags);
+       Cvar_Get(name, value, flags, NULL);
 
        PRVM_G_FLOAT(OFS_RETURN) = 1; // success
 }
@@ -1527,6 +1752,12 @@ void VM_pow (void)
        PRVM_G_FLOAT(OFS_RETURN) = pow(PRVM_G_FLOAT(OFS_PARM0), PRVM_G_FLOAT(OFS_PARM1));
 }
 
+void VM_log (void)
+{
+       VM_SAFEPARMCOUNT(1,VM_log);
+       PRVM_G_FLOAT(OFS_RETURN) = log(PRVM_G_FLOAT(OFS_PARM0));
+}
+
 void VM_Files_Init(void)
 {
        int i;
@@ -1613,14 +1844,14 @@ void VM_fopen(void)
        if (prog->openfiles[filenum] == NULL)
        {
                PRVM_G_FLOAT(OFS_RETURN) = -1;
-               if (developer.integer >= 100)
+               if (developer_extra.integer)
                        VM_Warning("VM_fopen: %s: %s mode %s failed\n", PRVM_NAME, filename, modestring);
        }
        else
        {
                PRVM_G_FLOAT(OFS_RETURN) = filenum;
-               if (developer.integer >= 100)
-                       Con_Printf("VM_fopen: %s: %s mode %s opened as #%i\n", PRVM_NAME, filename, modestring, filenum);
+               if (developer_extra.integer)
+                       Con_DPrintf("VM_fopen: %s: %s mode %s opened as #%i\n", PRVM_NAME, filename, modestring, filenum);
                prog->openfiles_origin[filenum] = PRVM_AllocationOrigin();
        }
 }
@@ -1654,8 +1885,8 @@ void VM_fclose(void)
        prog->openfiles[filenum] = NULL;
        if(prog->openfiles_origin[filenum])
                PRVM_Free((char *)prog->openfiles_origin[filenum]);
-       if (developer.integer >= 100)
-               Con_Printf("VM_fclose: %s: #%i closed\n", PRVM_NAME, filenum);
+       if (developer_extra.integer)
+               Con_DPrintf("VM_fclose: %s: #%i closed\n", PRVM_NAME, filenum);
 }
 
 /*
@@ -1705,8 +1936,8 @@ void VM_fgets(void)
                if (c != '\n')
                        FS_UnGetc(prog->openfiles[filenum], (unsigned char)c);
        }
-       if (developer.integer >= 100)
-               Con_Printf("fgets: %s: %s\n", PRVM_NAME, string);
+       if (developer_extra.integer)
+               Con_DPrintf("fgets: %s: %s\n", PRVM_NAME, string);
        if (c >= 0 || end)
                PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
 }
@@ -1741,8 +1972,8 @@ void VM_fputs(void)
        VM_VarString(1, string, sizeof(string));
        if ((stringlength = (int)strlen(string)))
                FS_Write(prog->openfiles[filenum], string, stringlength);
-       if (developer.integer >= 100)
-               Con_Printf("fputs: %s: %s\n", PRVM_NAME, string);
+       if (developer_extra.integer)
+               Con_DPrintf("fputs: %s: %s\n", PRVM_NAME, string);
 }
 
 /*
@@ -1922,7 +2153,7 @@ void VM_putentityfieldstring(void)
        }
 
        // parse the string into the value
-       PRVM_G_FLOAT(OFS_RETURN) = ( PRVM_ED_ParseEpair(ent, d, PRVM_G_STRING(OFS_PARM2)) ) ? 1.0f : 0.0f;
+       PRVM_G_FLOAT(OFS_RETURN) = ( PRVM_ED_ParseEpair(ent, d, PRVM_G_STRING(OFS_PARM2), false) ) ? 1.0f : 0.0f;
 }
 
 /*
@@ -1937,7 +2168,8 @@ void VM_strlen(void)
 {
        VM_SAFEPARMCOUNT(1,VM_strlen);
 
-       PRVM_G_FLOAT(OFS_RETURN) = strlen(PRVM_G_STRING(OFS_PARM0));
+       //PRVM_G_FLOAT(OFS_RETURN) = strlen(PRVM_G_STRING(OFS_PARM0));
+       PRVM_G_FLOAT(OFS_RETURN) = u8_strlen(PRVM_G_STRING(OFS_PARM0));
 }
 
 // DRESK - Decolorized String
@@ -1980,7 +2212,8 @@ void VM_strlennocol(void)
 
        szString = PRVM_G_STRING(OFS_PARM0);
 
-       nCnt = COM_StringLengthNoColors(szString, 0, NULL);
+       //nCnt = COM_StringLengthNoColors(szString, 0, NULL);
+       nCnt = u8_COM_StringLengthNoColors(szString, 0, NULL);
 
        PRVM_G_FLOAT(OFS_RETURN) = nCnt;
 }
@@ -2060,19 +2293,65 @@ string  substring(string s, float start, float length)
 // returns a section of a string as a tempstring
 void VM_substring(void)
 {
-       int i, start, length;
+       int start, length;
+       int u_slength = 0, u_start;
+       size_t u_length;
        const char *s;
        char string[VM_STRINGTEMP_LENGTH];
 
        VM_SAFEPARMCOUNT(3,VM_substring);
 
+       /*
        s = PRVM_G_STRING(OFS_PARM0);
        start = (int)PRVM_G_FLOAT(OFS_PARM1);
        length = (int)PRVM_G_FLOAT(OFS_PARM2);
-       for (i = 0;i < start && *s;i++, s++);
-       for (i = 0;i < (int)sizeof(string) - 1 && *s && i < length;i++, s++)
-               string[i] = *s;
-       string[i] = 0;
+       slength = strlen(s);
+
+       if (start < 0) // FTE_STRINGS feature
+               start += slength;
+       start = bound(0, start, slength);
+
+       if (length < 0) // FTE_STRINGS feature
+               length += slength - start + 1;
+       maxlen = min((int)sizeof(string) - 1, slength - start);
+       length = bound(0, length, maxlen);
+
+       memcpy(string, s + start, length);
+       string[length] = 0;
+       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
+       */
+       
+       s = PRVM_G_STRING(OFS_PARM0);
+       start = (int)PRVM_G_FLOAT(OFS_PARM1);
+       length = (int)PRVM_G_FLOAT(OFS_PARM2);
+
+       if (start < 0) // FTE_STRINGS feature
+       {
+               u_slength = u8_strlen(s);
+               start += u_slength;
+               start = bound(0, start, u_slength);
+       }
+
+       if (length < 0) // FTE_STRINGS feature
+       {
+               if (!u_slength) // it's not calculated when it's not needed above
+                       u_slength = u8_strlen(s);
+               length += u_slength - start + 1;
+       }
+               
+       // positive start, positive length
+       u_start = u8_byteofs(s, start, NULL);
+       if (u_start < 0)
+       {
+               PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
+               return;
+       }
+       u_length = u8_bytelen(s + u_start, length);
+       if (u_length >= sizeof(string)-1)
+               u_length = sizeof(string)-1;
+       
+       memcpy(string, s + u_start, u_length);
+       string[u_length] = 0;
        PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(string);
 }
 
@@ -2271,18 +2550,18 @@ float tokenize(string s)
 //this function originally written by KrimZon, made shorter by LordHavoc
 //20040203: rewritten by LordHavoc (no longer uses allocations)
 static int num_tokens = 0;
-static int tokens[256];
-static int tokens_startpos[256];
-static int tokens_endpos[256];
+static int tokens[VM_STRINGTEMP_LENGTH / 2];
+static int tokens_startpos[VM_STRINGTEMP_LENGTH / 2];
+static int tokens_endpos[VM_STRINGTEMP_LENGTH / 2];
+static char tokenize_string[VM_STRINGTEMP_LENGTH];
 void VM_tokenize (void)
 {
        const char *p;
-       const char *string;
 
        VM_SAFEPARMCOUNT(1,VM_tokenize);
 
-       string = PRVM_G_STRING(OFS_PARM0);
-       p = string;
+       strlcpy(tokenize_string, PRVM_G_STRING(OFS_PARM0), sizeof(tokenize_string));
+       p = tokenize_string;
 
        num_tokens = 0;
        for(;;)
@@ -2291,13 +2570,13 @@ void VM_tokenize (void)
                        break;
 
                // skip whitespace here to find token start pos
-               while(*p && (unsigned char) *p <= ' ')
+               while(*p && ISWHITESPACE(*p))
                        ++p;
 
-               tokens_startpos[num_tokens] = p - string;
+               tokens_startpos[num_tokens] = p - tokenize_string;
                if(!COM_ParseToken_VM_Tokenize(&p, false))
                        break;
-               tokens_endpos[num_tokens] = p - string;
+               tokens_endpos[num_tokens] = p - tokenize_string;
                tokens[num_tokens] = PRVM_SetTempString(com_token);
                ++num_tokens;
        }
@@ -2309,12 +2588,11 @@ void VM_tokenize (void)
 void VM_tokenize_console (void)
 {
        const char *p;
-       const char *string;
 
        VM_SAFEPARMCOUNT(1,VM_tokenize);
 
-       string = PRVM_G_STRING(OFS_PARM0);
-       p = string;
+       strlcpy(tokenize_string, PRVM_G_STRING(OFS_PARM0), sizeof(tokenize_string));
+       p = tokenize_string;
 
        num_tokens = 0;
        for(;;)
@@ -2323,13 +2601,13 @@ void VM_tokenize_console (void)
                        break;
 
                // skip whitespace here to find token start pos
-               while(*p && (unsigned char) *p <= ' ')
+               while(*p && ISWHITESPACE(*p))
                        ++p;
 
-               tokens_startpos[num_tokens] = p - string;
+               tokens_startpos[num_tokens] = p - tokenize_string;
                if(!COM_ParseToken_Console(&p))
                        break;
-               tokens_endpos[num_tokens] = p - string;
+               tokens_endpos[num_tokens] = p - tokenize_string;
                tokens[num_tokens] = PRVM_SetTempString(com_token);
                ++num_tokens;
        }
@@ -2357,15 +2635,14 @@ void VM_tokenizebyseparator (void)
        int numseparators;
        int separatorlen[7];
        const char *separators[7];
-       const char *p;
+       const char *p, *p0;
        const char *token;
        char tokentext[MAX_INPUTLINE];
-       const char *string;
 
        VM_SAFEPARMCOUNTRANGE(2, 8,VM_tokenizebyseparator);
 
-       string = PRVM_G_STRING(OFS_PARM0);
-       p = string;
+       strlcpy(tokenize_string, PRVM_G_STRING(OFS_PARM0), sizeof(tokenize_string));
+       p = tokenize_string;
 
        numseparators = 0;
        for (j = 1;j < prog->argc;j++)
@@ -2385,7 +2662,8 @@ void VM_tokenizebyseparator (void)
        while (num_tokens < (int)(sizeof(tokens)/sizeof(tokens[0])))
        {
                token = tokentext + j;
-               tokens_startpos[num_tokens] = p - string;
+               tokens_startpos[num_tokens] = p - tokenize_string;
+               p0 = p;
                while (*p)
                {
                        for (k = 0;k < numseparators;k++)
@@ -2401,8 +2679,9 @@ void VM_tokenizebyseparator (void)
                        if (j < (int)sizeof(tokentext)-1)
                                tokentext[j++] = *p;
                        p++;
+                       p0 = p;
                }
-               tokens_endpos[num_tokens] = p - string;
+               tokens_endpos[num_tokens] = p0 - tokenize_string;
                if (j >= (int)sizeof(tokentext))
                        break;
                tokentext[j++] = 0;
@@ -2559,11 +2838,44 @@ VM_gettime
 float  gettime(void)
 =========
 */
+extern double host_starttime;
+float CDAudio_GetPosition(void);
 void VM_gettime(void)
 {
-       VM_SAFEPARMCOUNT(0,VM_gettime);
+       int timer_index;
+
+       VM_SAFEPARMCOUNTRANGE(0,1,VM_gettime);
 
-       PRVM_G_FLOAT(OFS_RETURN) = (float) realtime;
+       if(prog->argc == 0)
+       {
+               PRVM_G_FLOAT(OFS_RETURN) = (float) realtime;
+       }
+       else
+       {
+               timer_index = (int) PRVM_G_FLOAT(OFS_PARM0);
+        switch(timer_index)
+        {
+            case 0: // GETTIME_FRAMESTART
+                PRVM_G_FLOAT(OFS_RETURN) = (float) realtime;
+                break;
+            case 1: // GETTIME_REALTIME
+                PRVM_G_FLOAT(OFS_RETURN) = (float) Sys_DoubleTime();
+                break;
+            case 2: // GETTIME_HIRES
+                PRVM_G_FLOAT(OFS_RETURN) = (float) (Sys_DoubleTime() - realtime);
+                break;
+            case 3: // GETTIME_UPTIME
+                PRVM_G_FLOAT(OFS_RETURN) = (float) (Sys_DoubleTime() - host_starttime);
+                break;
+            case 4: // GETTIME_CDTRACK
+                PRVM_G_FLOAT(OFS_RETURN) = (float) CDAudio_GetPosition();
+                break;
+                       default:
+                               VM_Warning("VM_gettime: %s: unsupported timer specified, returning realtime\n", PRVM_NAME);
+                               PRVM_G_FLOAT(OFS_RETURN) = (float) realtime;
+                               break;
+               }
+       }
 }
 
 /*
@@ -2823,6 +3135,7 @@ string    chr(float ascii)
 */
 void VM_chr(void)
 {
+       /*
        char tmp[2];
        VM_SAFEPARMCOUNT(1, VM_chr);
 
@@ -2830,6 +3143,15 @@ void VM_chr(void)
        tmp[1] = 0;
 
        PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(tmp);
+       */
+       
+       char tmp[8];
+       int len;
+       VM_SAFEPARMCOUNT(1, VM_chr);
+
+       len = u8_fromchar((Uchar)PRVM_G_FLOAT(OFS_PARM0), tmp, sizeof(tmp));
+       tmp[len] = 0;
+       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(tmp);
 }
 
 //=============================================================================
@@ -2891,11 +3213,26 @@ void VM_freepic(void)
        Draw_FreePic(s);
 }
 
-dp_font_t *getdrawfont()
+void getdrawfontscale(float *sx, float *sy)
+{
+       vec3_t v;
+       *sx = *sy = 1;
+       if(prog->globaloffsets.drawfontscale >= 0)
+       {
+               VectorCopy(PRVM_G_VECTOR(prog->globaloffsets.drawfontscale), v);
+               if(VectorLength2(v) > 0)
+               {
+                       *sx = v[0];
+                       *sy = v[1];
+               }
+       }
+}
+
+dp_font_t *getdrawfont(void)
 {
        if(prog->globaloffsets.drawfont >= 0)
        {
-               int f = PRVM_G_FLOAT(prog->globaloffsets.drawfont);
+               int f = (int) PRVM_G_FLOAT(prog->globaloffsets.drawfont);
                if(f < 0 || f >= MAX_FONTS)
                        return FONT_DEFAULT;
                return &dp_fonts[f];
@@ -2916,6 +3253,7 @@ void VM_drawcharacter(void)
        float *pos,*scale,*rgb;
        char   character;
        int flag;
+       float sx, sy;
        VM_SAFEPARMCOUNT(6,VM_drawcharacter);
 
        character = (char) PRVM_G_FLOAT(OFS_PARM1);
@@ -2948,7 +3286,8 @@ void VM_drawcharacter(void)
                return;
        }
 
-       DrawQ_String_Font(pos[0], pos[1], &character, 1, scale[0], scale[1], rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true, getdrawfont());
+       getdrawfontscale(&sx, &sy);
+       DrawQ_String_Scale(pos[0], pos[1], &character, 1, scale[0], scale[1], sx, sy, rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true, getdrawfont());
        PRVM_G_FLOAT(OFS_RETURN) = 1;
 }
 
@@ -2964,6 +3303,7 @@ void VM_drawstring(void)
        float *pos,*scale,*rgb;
        const char  *string;
        int flag;
+       float sx, sy;
        VM_SAFEPARMCOUNT(6,VM_drawstring);
 
        string = PRVM_G_STRING(OFS_PARM1);
@@ -2989,7 +3329,9 @@ void VM_drawstring(void)
        if(pos[2] || scale[2])
                Con_Printf("VM_drawstring: z value%s from %s discarded\n",(pos[2] && scale[2]) ? "s" : " ",((pos[2] && scale[2]) ? "pos and scale" : (pos[2] ? "pos" : "scale")));
 
-       DrawQ_String_Font(pos[0], pos[1], string, 0, scale[0], scale[1], rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true, getdrawfont());
+       getdrawfontscale(&sx, &sy);
+       DrawQ_String_Scale(pos[0], pos[1], string, 0, scale[0], scale[1], sx, sy, rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true, getdrawfont());
+       //Font_DrawString(pos[0], pos[1], string, 0, scale[0], scale[1], rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM4), flag, NULL, true);
        PRVM_G_FLOAT(OFS_RETURN) = 1;
 }
 
@@ -3005,6 +3347,7 @@ void VM_drawcolorcodedstring(void)
        float *pos,*scale;
        const char  *string;
        int flag,color;
+       float sx, sy;
        VM_SAFEPARMCOUNT(5,VM_drawstring);
 
        string = PRVM_G_STRING(OFS_PARM1);
@@ -3030,26 +3373,69 @@ void VM_drawcolorcodedstring(void)
                Con_Printf("VM_drawcolorcodedstring: z value%s from %s discarded\n",(pos[2] && scale[2]) ? "s" : " ",((pos[2] && scale[2]) ? "pos and scale" : (pos[2] ? "pos" : "scale")));
 
        color = -1;
-       DrawQ_String_Font(pos[0], pos[1], string, 0, scale[0], scale[1], 1, 1, 1, PRVM_G_FLOAT(OFS_PARM3), flag, NULL, false, getdrawfont());
+       getdrawfontscale(&sx, &sy);
+       DrawQ_String_Scale(pos[0], pos[1], string, 0, scale[0], scale[1], sx, sy, 1, 1, 1, PRVM_G_FLOAT(OFS_PARM3), flag, NULL, false, getdrawfont());
        PRVM_G_FLOAT(OFS_RETURN) = 1;
 }
 /*
 =========
 VM_stringwidth
 
-float  stringwidth(string text, float allowColorCodes)
+float  stringwidth(string text, float allowColorCodes, float size)
 =========
 */
 void VM_stringwidth(void)
 {
        const char  *string;
+       float *szv;
+       float mult; // sz is intended font size so we can later add freetype support, mult is font size multiplier in pixels per character cell
        int colors;
-       VM_SAFEPARMCOUNT(2,VM_drawstring);
+       float sx, sy;
+       size_t maxlen = 0;
+       VM_SAFEPARMCOUNTRANGE(2,3,VM_drawstring);
+
+       getdrawfontscale(&sx, &sy);
+       if(prog->argc == 3)
+       {
+               szv = PRVM_G_VECTOR(OFS_PARM2);
+               mult = 1;
+       }
+       else
+       {
+               // we want the width for 8x8 font size, divided by 8
+               static float defsize[] = {8, 8};
+               szv = defsize;
+               mult = 0.125;
+               // to make sure snapping is turned off, ALWAYS use a nontrivial scale in this case
+               if(sx >= 0.9 && sx <= 1.1)
+               {
+                       mult *= 2;
+                       sx /= 2;
+                       sy /= 2;
+               }
+       }
 
        string = PRVM_G_STRING(OFS_PARM0);
        colors = (int)PRVM_G_FLOAT(OFS_PARM1);
 
-       PRVM_G_FLOAT(OFS_RETURN) = DrawQ_TextWidth_Font(string, 0, !colors, getdrawfont()); // 1x1 characters, don't actually draw
+       PRVM_G_FLOAT(OFS_RETURN) = DrawQ_TextWidth_UntilWidth_TrackColors_Scale(string, &maxlen, szv[0], szv[1], sx, sy, NULL, !colors, getdrawfont(), 1000000000) * mult;
+/*
+       if(prog->argc == 3)
+       {
+               mult = sz = PRVM_G_FLOAT(OFS_PARM2);
+       }
+       else
+       {
+               sz = 8;
+               mult = 1;
+       }
+
+       string = PRVM_G_STRING(OFS_PARM0);
+       colors = (int)PRVM_G_FLOAT(OFS_PARM1);
+
+       PRVM_G_FLOAT(OFS_RETURN) = DrawQ_TextWidth(string, 0, !colors, getdrawfont()) * mult; // 1x1 characters, don't actually draw
+*/
+
 }
 /*
 =========
@@ -3097,6 +3483,51 @@ void VM_drawpic(void)
 }
 /*
 =========
+VM_drawrotpic
+
+float  drawrotpic(vector position, string pic, vector size, vector org, float angle, vector rgb, float alpha, float flag)
+=========
+*/
+void VM_drawrotpic(void)
+{
+       const char *picname;
+       float *size, *pos, *org, *rgb;
+       int flag;
+
+       VM_SAFEPARMCOUNT(8,VM_drawrotpic);
+
+       picname = PRVM_G_STRING(OFS_PARM1);
+       VM_CheckEmptyString (picname);
+
+       // is pic cached ? no function yet for that
+       if(!1)
+       {
+               PRVM_G_FLOAT(OFS_RETURN) = -4;
+               VM_Warning("VM_drawrotpic: %s: %s not cached !\n", PRVM_NAME, picname);
+               return;
+       }
+
+       pos = PRVM_G_VECTOR(OFS_PARM0);
+       size = PRVM_G_VECTOR(OFS_PARM2);
+       org = PRVM_G_VECTOR(OFS_PARM3);
+       rgb = PRVM_G_VECTOR(OFS_PARM5);
+       flag = (int) PRVM_G_FLOAT(OFS_PARM7);
+
+       if(flag < DRAWFLAG_NORMAL || flag >=DRAWFLAG_NUMFLAGS)
+       {
+               PRVM_G_FLOAT(OFS_RETURN) = -2;
+               VM_Warning("VM_drawrotpic: %s: wrong DRAWFLAG %i !\n",PRVM_NAME,flag);
+               return;
+       }
+
+       if(pos[2] || size[2] || org[2])
+               Con_Printf("VM_drawrotpic: z value from pos/size/org discarded\n");
+
+       DrawQ_RotPic(pos[0], pos[1], Draw_CachePic(picname), size[0], size[1], org[0], org[1], PRVM_G_FLOAT(OFS_PARM4), rgb[0], rgb[1], rgb[2], PRVM_G_FLOAT(OFS_PARM6), flag);
+       PRVM_G_FLOAT(OFS_RETURN) = 1;
+}
+/*
+=========
 VM_drawsubpic
 
 float  drawsubpic(vector position, vector size, string pic, vector srcPos, vector srcSize, vector rgb, float alpha, float flag)
@@ -3576,7 +4007,7 @@ void VM_gecko_keyevent( void ) {
                return;
        }
 
-       PRVM_G_FLOAT( OFS_RETURN ) = (CL_Gecko_Event_Key( instance, key, eventtype ) == true);
+       PRVM_G_FLOAT( OFS_RETURN ) = (CL_Gecko_Event_Key( instance, (keynum_t) key, eventtype ) == true);
 }
 
 /*
@@ -3629,7 +4060,7 @@ void VM_gecko_resize( void ) {
        if( !instance ) {
                return;
        }
-       CL_Gecko_Resize( instance, w, h );
+       CL_Gecko_Resize( instance, (int) w, (int) h );
 }
 
 
@@ -3738,7 +4169,7 @@ void VM_bitshift (void)
        int n1, n2;
        VM_SAFEPARMCOUNT(2, VM_bitshift);
 
-       n1 = (int)fabs((int)PRVM_G_FLOAT(OFS_PARM0));
+       n1 = (int)fabs((float)((int)PRVM_G_FLOAT(OFS_PARM0)));
        n2 = (int)PRVM_G_FLOAT(OFS_PARM1);
        if(!n1)
                PRVM_G_FLOAT(OFS_RETURN) = n1;
@@ -3962,7 +4393,7 @@ static void BufStr_Expand(prvm_stringbuffer_t *stringbuffer, int strindex)
                stringbuffer->max_strings = max(stringbuffer->max_strings * 2, 128);
                while (stringbuffer->max_strings <= strindex)
                        stringbuffer->max_strings *= 2;
-               stringbuffer->strings = Mem_Alloc(prog->progs_mempool, stringbuffer->max_strings * sizeof(stringbuffer->strings[0]));
+               stringbuffer->strings = (char **) Mem_Alloc(prog->progs_mempool, stringbuffer->max_strings * sizeof(stringbuffer->strings[0]));
                if (stringbuffer->num_strings > 0)
                        memcpy(stringbuffer->strings, oldstrings, stringbuffer->num_strings * sizeof(stringbuffer->strings[0]));
                if (oldstrings)
@@ -4018,7 +4449,7 @@ void VM_buf_create (void)
        prvm_stringbuffer_t *stringbuffer;
        int i;
        VM_SAFEPARMCOUNT(0, VM_buf_create);
-       stringbuffer = Mem_ExpandableArray_AllocRecord(&prog->stringbuffersarray);
+       stringbuffer = (prvm_stringbuffer_t *) Mem_ExpandableArray_AllocRecord(&prog->stringbuffersarray);
        for (i = 0;stringbuffer != Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, i);i++);
        stringbuffer->origin = PRVM_AllocationOrigin();
        PRVM_G_FLOAT(OFS_RETURN) = i;
@@ -4368,6 +4799,91 @@ void VM_bufstr_free (void)
        BufStr_Shrink(stringbuffer);
 }
 
+
+
+
+
+
+
+void VM_buf_cvarlist(void)
+{
+       cvar_t *cvar;
+       const char *partial, *antipartial;
+       size_t len, antilen;
+       size_t alloclen;
+       qboolean ispattern, antiispattern;
+       int n;
+       prvm_stringbuffer_t     *stringbuffer;
+       VM_SAFEPARMCOUNTRANGE(2, 3, VM_buf_cvarlist);
+
+       stringbuffer = (prvm_stringbuffer_t *)Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, (int)PRVM_G_FLOAT(OFS_PARM0));
+       if(!stringbuffer)
+       {
+               VM_Warning("VM_bufstr_free: invalid buffer %i used in %s\n", (int)PRVM_G_FLOAT(OFS_PARM0), PRVM_NAME);
+               return;
+       }
+
+       partial = PRVM_G_STRING(OFS_PARM1);
+       if(!partial)
+               len = 0;
+       else
+               len = strlen(partial);
+
+       if(prog->argc == 3)
+               antipartial = PRVM_G_STRING(OFS_PARM2);
+       else
+               antipartial = NULL;
+       if(!antipartial)
+               antilen = 0;
+       else
+               antilen = strlen(antipartial);
+       
+       for (n = 0;n < stringbuffer->num_strings;n++)
+               if (stringbuffer->strings[n])
+                       Mem_Free(stringbuffer->strings[n]);
+       if (stringbuffer->strings)
+               Mem_Free(stringbuffer->strings);
+       stringbuffer->strings = NULL;
+
+       ispattern = partial && (strchr(partial, '*') || strchr(partial, '?'));
+       antiispattern = antipartial && (strchr(antipartial, '*') || strchr(antipartial, '?'));
+
+       n = 0;
+       for(cvar = cvar_vars; cvar; cvar = cvar->next)
+       {
+               if(len && (ispattern ? !matchpattern_with_separator(cvar->name, partial, false, "", false) : strncmp(partial, cvar->name, len)))
+                       continue;
+
+               if(antilen && (antiispattern ? matchpattern_with_separator(cvar->name, antipartial, false, "", false) : !strncmp(antipartial, cvar->name, antilen)))
+                       continue;
+
+               ++n;
+       }
+
+       stringbuffer->max_strings = stringbuffer->num_strings = n;
+       if (stringbuffer->max_strings)
+               stringbuffer->strings = (char **)Mem_Alloc(prog->progs_mempool, sizeof(stringbuffer->strings[0]) * stringbuffer->max_strings);
+       
+       n = 0;
+       for(cvar = cvar_vars; cvar; cvar = cvar->next)
+       {
+               if(len && (ispattern ? !matchpattern_with_separator(cvar->name, partial, false, "", false) : strncmp(partial, cvar->name, len)))
+                       continue;
+
+               if(antilen && (antiispattern ? matchpattern_with_separator(cvar->name, antipartial, false, "", false) : !strncmp(antipartial, cvar->name, antilen)))
+                       continue;
+
+               alloclen = strlen(cvar->name) + 1;
+               stringbuffer->strings[n] = (char *)Mem_Alloc(prog->progs_mempool, alloclen);
+               memcpy(stringbuffer->strings[n], cvar->name, alloclen);
+
+               ++n;
+       }
+}
+
+
+
+
 //=============
 
 /*
@@ -4515,7 +5031,8 @@ void VM_strstrofs (void)
        VM_SAFEPARMCOUNTRANGE(2, 3, VM_strstrofs);
        instr = PRVM_G_STRING(OFS_PARM0);
        match = PRVM_G_STRING(OFS_PARM1);
-       firstofs = (prog->argc > 2)?PRVM_G_FLOAT(OFS_PARM2):0;
+       firstofs = (prog->argc > 2)?(int)PRVM_G_FLOAT(OFS_PARM2):0;
+       firstofs = u8_bytelen(instr, firstofs);
 
        if (firstofs && (firstofs < 0 || firstofs > (int)strlen(instr)))
        {
@@ -4534,10 +5051,20 @@ void VM_strstrofs (void)
 void VM_str2chr (void)
 {
        const char *s;
+       Uchar ch;
+       int index;
        VM_SAFEPARMCOUNT(2, VM_str2chr);
        s = PRVM_G_STRING(OFS_PARM0);
-       if((unsigned)PRVM_G_FLOAT(OFS_PARM1) < strlen(s))
-               PRVM_G_FLOAT(OFS_RETURN) = (unsigned char)s[(unsigned)PRVM_G_FLOAT(OFS_PARM1)];
+       index = u8_bytelen(s, (int)PRVM_G_FLOAT(OFS_PARM1));
+
+       if((unsigned)index < strlen(s))
+       {
+               if (utf8_enable.integer)
+                       ch = u8_getchar_noendptr(s + index);
+               else
+                       ch = (unsigned char)s[index];
+               PRVM_G_FLOAT(OFS_RETURN) = ch;
+       }
        else
                PRVM_G_FLOAT(OFS_RETURN) = 0;
 }
@@ -4545,6 +5072,7 @@ void VM_str2chr (void)
 //#223 string(float c, ...) chr2str (FTE_STRINGS)
 void VM_chr2str (void)
 {
+       /*
        char    t[9];
        int             i;
        VM_SAFEPARMCOUNTRANGE(0, 8, VM_chr2str);
@@ -4552,6 +5080,15 @@ void VM_chr2str (void)
                t[i] = (unsigned char)PRVM_G_FLOAT(OFS_PARM0+i*3);
        t[i] = 0;
        PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(t);
+       */
+       char t[9 * 4 + 1];
+       int i;
+       size_t len = 0;
+       VM_SAFEPARMCOUNTRANGE(0, 8, VM_chr2str);
+       for(i = 0; i < prog->argc && len < sizeof(t)-1; ++i)
+               len += u8_fromchar((Uchar)PRVM_G_FLOAT(OFS_PARM0+i*3), t + len, sizeof(t)-1);
+       t[len] = 0;
+       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(t);
 }
 
 static int chrconv_number(int i, int base, int conv)
@@ -4644,9 +5181,9 @@ void VM_strconv (void)
 
        VM_SAFEPARMCOUNTRANGE(3, 8, VM_strconv);
 
-       ccase = PRVM_G_FLOAT(OFS_PARM0);        //0 same, 1 lower, 2 upper
-       redalpha = PRVM_G_FLOAT(OFS_PARM1);     //0 same, 1 white, 2 red,  5 alternate, 6 alternate-alternate
-       rednum = PRVM_G_FLOAT(OFS_PARM2);       //0 same, 1 white, 2 red, 3 redspecial, 4 whitespecial, 5 alternate, 6 alternate-alternate
+       ccase = (int) PRVM_G_FLOAT(OFS_PARM0);  //0 same, 1 lower, 2 upper
+       redalpha = (int) PRVM_G_FLOAT(OFS_PARM1);       //0 same, 1 white, 2 red,  5 alternate, 6 alternate-alternate
+       rednum = (int) PRVM_G_FLOAT(OFS_PARM2); //0 same, 1 white, 2 red, 3 redspecial, 4 whitespecial, 5 alternate, 6 alternate-alternate
        VM_VarString(3, (char *) resbuf, sizeof(resbuf));
        len = strlen((char *) resbuf);
 
@@ -4689,7 +5226,7 @@ void VM_strpad (void)
        char destbuf[VM_STRINGTEMP_LENGTH];
        int pad;
        VM_SAFEPARMCOUNTRANGE(1, 8, VM_strpad);
-       pad = PRVM_G_FLOAT(OFS_PARM0);
+       pad = (int) PRVM_G_FLOAT(OFS_PARM0);
        VM_VarString(1, src, sizeof(src));
 
        // note: < 0 = left padding, > 0 = right padding,
@@ -4820,6 +5357,38 @@ void VM_SetTraceGlobals(const trace_t *trace)
                val->string = trace->hittexture ? PRVM_SetTempString(trace->hittexture->name) : 0;
 }
 
+void VM_ClearTraceGlobals(void)
+{
+       // clean up all trace globals when leaving the VM (anti-triggerbot safeguard)
+       prvm_eval_t *val;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_allsolid)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_startsolid)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_fraction)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_inwater)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_inopen)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_endpos)))
+               VectorClear(val->vector);
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_plane_normal)))
+               VectorClear(val->vector);
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_plane_dist)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_ent)))
+               val->edict = PRVM_EDICT_TO_PROG(prog->edicts);
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dpstartcontents)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphitcontents)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphitq3surfaceflags)))
+               val->_float = 0;
+       if ((val = PRVM_GLOBALFIELDVALUE(prog->globaloffsets.trace_dphittexturename)))
+               val->string = 0;
+}
+
 //=============
 
 void VM_Cmd_Init(void)
@@ -4944,7 +5513,7 @@ uri_to_prog_t;
 
 static void uri_to_string_callback(int status, size_t length_received, unsigned char *buffer, void *cbdata)
 {
-       uri_to_prog_t *handle = cbdata;
+       uri_to_prog_t *handle = (uri_to_prog_t *) cbdata;
 
        if(!PRVM_ProgLoaded(handle->prognr))
        {
@@ -4987,7 +5556,7 @@ void VM_uri_get (void)
 
        url = PRVM_G_STRING(OFS_PARM0);
        id = PRVM_G_FLOAT(OFS_PARM1);
-       handle = Z_Malloc(sizeof(*handle)); // this can't be the prog's mem pool, as curl may call the callback later!
+       handle = (uri_to_prog_t *) Z_Malloc(sizeof(*handle)); // this can't be the prog's mem pool, as curl may call the callback later!
 
        handle->prognr = PRVM_GetProgNr();
        handle->starttime = prog->starttime;
@@ -5016,10 +5585,721 @@ void VM_netaddress_resolve (void)
        ip = PRVM_G_STRING(OFS_PARM0);
        port = 0;
        if(prog->argc > 1)
-               port = PRVM_G_FLOAT(OFS_PARM1);
+               port = (int) PRVM_G_FLOAT(OFS_PARM1);
 
        if(LHNETADDRESS_FromString(&addr, ip, port) && LHNETADDRESS_ToString(&addr, normalized, sizeof(normalized), prog->argc > 1))
                PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(normalized);
        else
                PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString("");
 }
+
+//string(void) getextresponse = #624; // returns the next extResponse packet that was sent to this client
+void VM_CL_getextresponse (void)
+{
+       VM_SAFEPARMCOUNT(0,VM_argv);
+
+       if (cl_net_extresponse_count <= 0)
+               PRVM_G_INT(OFS_RETURN) = OFS_NULL;
+       else
+       {
+               int first;
+               --cl_net_extresponse_count;
+               first = (cl_net_extresponse_last + NET_EXTRESPONSE_MAX - cl_net_extresponse_count) % NET_EXTRESPONSE_MAX;
+               PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(cl_net_extresponse[first]);
+       }
+}
+
+void VM_SV_getextresponse (void)
+{
+       VM_SAFEPARMCOUNT(0,VM_argv);
+
+       if (sv_net_extresponse_count <= 0)
+               PRVM_G_INT(OFS_RETURN) = OFS_NULL;
+       else
+       {
+               int first;
+               --sv_net_extresponse_count;
+               first = (sv_net_extresponse_last + NET_EXTRESPONSE_MAX - sv_net_extresponse_count) % NET_EXTRESPONSE_MAX;
+               PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(sv_net_extresponse[first]);
+       }
+}
+
+/*
+=========
+VM_M_callfunction
+
+       callfunction(...,string function_name)
+Extension: pass
+=========
+*/
+mfunction_t *PRVM_ED_FindFunction (const char *name);
+void VM_callfunction(void)
+{
+       mfunction_t *func;
+       const char *s;
+
+       VM_SAFEPARMCOUNTRANGE(1, 8, VM_callfunction);
+
+       s = PRVM_G_STRING(OFS_PARM0+(prog->argc - 1)*3);
+
+       VM_CheckEmptyString(s);
+
+       func = PRVM_ED_FindFunction(s);
+
+       if(!func)
+               PRVM_ERROR("VM_callfunciton: function %s not found !", s);
+       else if (func->first_statement < 0)
+       {
+               // negative statements are built in functions
+               int builtinnumber = -func->first_statement;
+               prog->xfunction->builtinsprofile++;
+               if (builtinnumber < prog->numbuiltins && prog->builtins[builtinnumber])
+                       prog->builtins[builtinnumber]();
+               else
+                       PRVM_ERROR("No such builtin #%i in %s; most likely cause: outdated engine build. Try updating!", builtinnumber, PRVM_NAME);
+       }
+       else if(func - prog->functions > 0)
+       {
+               prog->argc--;
+               PRVM_ExecuteProgram(func - prog->functions,"");
+               prog->argc++;
+       }
+}
+
+/*
+=========
+VM_isfunction
+
+float  isfunction(string function_name)
+=========
+*/
+mfunction_t *PRVM_ED_FindFunction (const char *name);
+void VM_isfunction(void)
+{
+       mfunction_t *func;
+       const char *s;
+
+       VM_SAFEPARMCOUNT(1, VM_isfunction);
+
+       s = PRVM_G_STRING(OFS_PARM0);
+
+       VM_CheckEmptyString(s);
+
+       func = PRVM_ED_FindFunction(s);
+
+       if(!func)
+               PRVM_G_FLOAT(OFS_RETURN) = false;
+       else
+               PRVM_G_FLOAT(OFS_RETURN) = true;
+}
+
+/*
+=========
+VM_sprintf
+
+string sprintf(string format, ...)
+=========
+*/
+
+void VM_sprintf(void)
+{
+       const char *s, *s0;
+       char outbuf[MAX_INPUTLINE];
+       char *o = outbuf, *end = outbuf + sizeof(outbuf), *err;
+       int argpos = 1;
+       int width, precision, thisarg, flags;
+       char formatbuf[16];
+       char *f;
+       qboolean isfloat;
+#define PRINTF_ALTERNATE 1
+#define PRINTF_ZEROPAD 2
+#define PRINTF_LEFT 4
+#define PRINTF_SPACEPOSITIVE 8
+#define PRINTF_SIGNPOSITIVE 16
+
+       formatbuf[0] = '%';
+
+       s = PRVM_G_STRING(OFS_PARM0);
+
+#define GETARG_FLOAT(a) (((a)>=1 && (a)<prog->argc) ? (PRVM_G_FLOAT(OFS_PARM0 + 3 * (a))) : 0)
+#define GETARG_INT(a) (((a)>=1 && (a)<prog->argc) ? (PRVM_G_INT(OFS_PARM0 + 3 * (a))) : 0)
+#define GETARG_STRING(a) (((a)>=1 && (a)<prog->argc) ? (PRVM_G_STRING(OFS_PARM0 + 3 * (a))) : "")
+
+       for(;;)
+       {
+               s0 = s;
+               switch(*s)
+               {
+                       case 0:
+                               goto finished;
+                               break;
+                       case '%':
+                               ++s;
+
+                               if(*s == '%')
+                                       goto verbatim;
+
+                               // complete directive format:
+                               // %3$*1$.*2$ld
+                               
+                               width = -1;
+                               precision = -1;
+                               thisarg = -1;
+                               flags = 0;
+
+                               // is number following?
+                               if(*s >= '0' && *s <= '9')
+                               {
+                                       width = strtol(s, &err, 10);
+                                       if(!err)
+                                       {
+                                               VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
+                                               goto finished;
+                                       }
+                                       if(*err == '$')
+                                       {
+                                               thisarg = width;
+                                               width = -1;
+                                               s = err + 1;
+                                       }
+                                       else
+                                       {
+                                               if(*s == '0')
+                                               {
+                                                       flags |= PRINTF_ZEROPAD;
+                                                       if(width == 0)
+                                                               width = -1; // it was just a flag
+                                               }
+                                               s = err;
+                                       }
+                               }
+
+                               if(width < 0)
+                               {
+                                       for(;;)
+                                       {
+                                               switch(*s)
+                                               {
+                                                       case '#': flags |= PRINTF_ALTERNATE; break;
+                                                       case '0': flags |= PRINTF_ZEROPAD; break;
+                                                       case '-': flags |= PRINTF_LEFT; break;
+                                                       case ' ': flags |= PRINTF_SPACEPOSITIVE; break;
+                                                       case '+': flags |= PRINTF_SIGNPOSITIVE; break;
+                                                       default:
+                                                               goto noflags;
+                                               }
+                                               ++s;
+                                       }
+noflags:
+                                       if(*s == '*')
+                                       {
+                                               ++s;
+                                               if(*s >= '0' && *s <= '9')
+                                               {
+                                                       width = strtol(s, &err, 10);
+                                                       if(!err || *err != '$')
+                                                       {
+                                                               VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
+                                                               goto finished;
+                                                       }
+                                                       s = err + 1;
+                                               }
+                                               else
+                                                       width = argpos++;
+                                               width = GETARG_FLOAT(width);
+                                               if(width < 0)
+                                               {
+                                                       flags |= PRINTF_LEFT;
+                                                       width = -width;
+                                               }
+                                       }
+                                       else if(*s >= '0' && *s <= '9')
+                                       {
+                                               width = strtol(s, &err, 10);
+                                               if(!err)
+                                               {
+                                                       VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
+                                                       goto finished;
+                                               }
+                                               s = err;
+                                               if(width < 0)
+                                               {
+                                                       flags |= PRINTF_LEFT;
+                                                       width = -width;
+                                               }
+                                       }
+                                       // otherwise width stays -1
+                               }
+
+                               if(*s == '.')
+                               {
+                                       ++s;
+                                       if(*s == '*')
+                                       {
+                                               ++s;
+                                               if(*s >= '0' && *s <= '9')
+                                               {
+                                                       precision = strtol(s, &err, 10);
+                                                       if(!err || *err != '$')
+                                                       {
+                                                               VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
+                                                               goto finished;
+                                                       }
+                                                       s = err + 1;
+                                               }
+                                               else
+                                                       precision = argpos++;
+                                               precision = GETARG_FLOAT(precision);
+                                       }
+                                       else if(*s >= '0' && *s <= '9')
+                                       {
+                                               precision = strtol(s, &err, 10);
+                                               if(!err)
+                                               {
+                                                       VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
+                                                       goto finished;
+                                               }
+                                               s = err;
+                                       }
+                                       else
+                                       {
+                                               VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
+                                               goto finished;
+                                       }
+                               }
+
+                               isfloat = true;
+                               for(;;)
+                               {
+                                       switch(*s)
+                                       {
+                                               case 'h': isfloat = true; break;
+                                               case 'l': isfloat = false; break;
+                                               case 'L': isfloat = false; break;
+                                               case 'j': break;
+                                               case 'z': break;
+                                               case 't': break;
+                                               default:
+                                                       goto nolength;
+                                       }
+                                       ++s;
+                               }
+nolength:
+
+                               if(thisarg < 0)
+                                       thisarg = argpos++;
+
+                               if(o < end - 1)
+                               {
+                                       f = &formatbuf[1];
+                                       if(*s != 's' && *s != 'c')
+                                               if(flags & PRINTF_ALTERNATE) *f++ = '#';
+                                       if(flags & PRINTF_ZEROPAD) *f++ = '0';
+                                       if(flags & PRINTF_LEFT) *f++ = '-';
+                                       if(flags & PRINTF_SPACEPOSITIVE) *f++ = ' ';
+                                       if(flags & PRINTF_SIGNPOSITIVE) *f++ = '+';
+                                       *f++ = '*';
+                                       *f++ = '.';
+                                       *f++ = '*';
+                                       *f++ = *s;
+                                       *f++ = 0;
+
+                                       if(width < 0) // not set
+                                               width = 0;
+
+                                       switch(*s)
+                                       {
+                                               case 'd': case 'i':
+                                                       if(precision < 0) // not set
+                                                               precision = 1;
+                                                       o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (int) GETARG_FLOAT(thisarg) : (int) GETARG_INT(thisarg)));
+                                                       break;
+                                               case 'o': case 'u': case 'x': case 'X':
+                                                       if(precision < 0) // not set
+                                                               precision = 1;
+                                                       o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (unsigned int) GETARG_FLOAT(thisarg) : (unsigned int) GETARG_INT(thisarg)));
+                                                       break;
+                                               case 'e': case 'E': case 'f': case 'F': case 'g': case 'G':
+                                                       if(precision < 0) // not set
+                                                               precision = 6;
+                                                       o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (double) GETARG_FLOAT(thisarg) : (double) GETARG_INT(thisarg)));
+                                                       break;
+                                               case 'c':
+                                                       if(precision < 0) // not set
+                                                               precision = end - o - 1;
+                                                       if(flags & PRINTF_ALTERNATE)
+                                                               o += dpsnprintf(o, end - o, formatbuf, width, precision, (isfloat ? (unsigned int) GETARG_FLOAT(thisarg) : (unsigned int) GETARG_INT(thisarg)));
+                                                       else
+                                                       {
+                                                               unsigned int c = (isfloat ? (unsigned int) GETARG_FLOAT(thisarg) : (unsigned int) GETARG_INT(thisarg));
+                                                               const char *buf = u8_encodech(c, NULL);
+                                                               if(!buf)
+                                                                       buf = "";
+                                                               o += u8_strpad(o, end - o, buf, (flags & PRINTF_LEFT) != 0, width, precision);
+                                                       }
+                                                       break;
+                                               case 's':
+                                                       if(precision < 0) // not set
+                                                               precision = end - o - 1;
+                                                       if(flags & PRINTF_ALTERNATE)
+                                                               o += dpsnprintf(o, end - o, formatbuf, width, precision, GETARG_STRING(thisarg));
+                                                       else
+                                                               o += u8_strpad(o, end - o, GETARG_STRING(thisarg), (flags & PRINTF_LEFT) != 0, width, precision);
+                                                       break;
+                                               default:
+                                                       VM_Warning("VM_sprintf: invalid directive in %s: %s\n", PRVM_NAME, s0);
+                                                       goto finished;
+                                       }
+                               }
+                               ++s;
+                               break;
+                       default:
+verbatim:
+                               if(o < end - 1)
+                                       *o++ = *s++;
+                               break;
+               }
+       }
+finished:
+       *o = 0;
+       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(outbuf);
+}
+
+
+// surface querying
+
+static dp_model_t *getmodel(prvm_edict_t *ed)
+{
+       switch(PRVM_GetProgNr())
+       {
+               case PRVM_SERVERPROG:
+                       return SV_GetModelFromEdict(ed);
+               case PRVM_CLIENTPROG:
+                       return CL_GetModelFromEdict(ed);
+               default:
+                       return NULL;
+       }
+}
+
+static void getmatrix(prvm_edict_t *ed, matrix4x4_t *out)
+{
+       switch(PRVM_GetProgNr())
+       {
+               case PRVM_SERVERPROG:
+                       SV_GetEntityMatrix(ed, out, false);
+                       break;
+               case PRVM_CLIENTPROG:
+                       CL_GetEntityMatrix(ed, out, false);
+                       break;
+               default:
+                       *out = identitymatrix;
+                       break;
+       }
+}
+
+static void applytransform_forward(const vec3_t in, prvm_edict_t *ed, vec3_t out)
+{
+       matrix4x4_t m;
+       getmatrix(ed, &m);
+       Matrix4x4_Transform(&m, in, out);
+}
+
+static void applytransform_forward_direction(const vec3_t in, prvm_edict_t *ed, vec3_t out)
+{
+       matrix4x4_t m;
+       getmatrix(ed, &m);
+       Matrix4x4_Transform3x3(&m, in, out);
+}
+
+static void applytransform_inverted(const vec3_t in, prvm_edict_t *ed, vec3_t out)
+{
+       matrix4x4_t m, n;
+       getmatrix(ed, &m);
+       Matrix4x4_Invert_Full(&m, &n);
+       Matrix4x4_Transform3x3(&n, in, out);
+}
+
+static void applytransform_forward_normal(const vec3_t in, prvm_edict_t *ed, vec3_t out)
+{
+       matrix4x4_t m;
+       float p[4];
+       getmatrix(ed, &m);
+       Matrix4x4_TransformPositivePlane(&m, in[0], in[1], in[2], 0, p);
+       VectorCopy(p, out);
+}
+
+static void clippointtosurface(dp_model_t *model, msurface_t *surface, vec3_t p, vec3_t out)
+{
+       int i, j, k;
+       float *v[3], facenormal[3], edgenormal[3], sidenormal[3], temp[3], offsetdist, dist, bestdist;
+       const int *e;
+       bestdist = 1000000000;
+       VectorCopy(p, out);
+       for (i = 0, e = (model->surfmesh.data_element3i + 3 * surface->num_firsttriangle);i < surface->num_triangles;i++, e += 3)
+       {
+               // clip original point to each triangle of the surface and find the
+               // triangle that is closest
+               v[0] = model->surfmesh.data_vertex3f + e[0] * 3;
+               v[1] = model->surfmesh.data_vertex3f + e[1] * 3;
+               v[2] = model->surfmesh.data_vertex3f + e[2] * 3;
+               TriangleNormal(v[0], v[1], v[2], facenormal);
+               VectorNormalize(facenormal);
+               offsetdist = DotProduct(v[0], facenormal) - DotProduct(p, facenormal);
+               VectorMA(p, offsetdist, facenormal, temp);
+               for (j = 0, k = 2;j < 3;k = j, j++)
+               {
+                       VectorSubtract(v[k], v[j], edgenormal);
+                       CrossProduct(edgenormal, facenormal, sidenormal);
+                       VectorNormalize(sidenormal);
+                       offsetdist = DotProduct(v[k], sidenormal) - DotProduct(temp, sidenormal);
+                       if (offsetdist < 0)
+                               VectorMA(temp, offsetdist, sidenormal, temp);
+               }
+               dist = VectorDistance2(temp, p);
+               if (bestdist > dist)
+               {
+                       bestdist = dist;
+                       VectorCopy(temp, out);
+               }
+       }
+}
+
+static msurface_t *getsurface(dp_model_t *model, int surfacenum)
+{
+       if (surfacenum < 0 || surfacenum >= model->nummodelsurfaces)
+               return NULL;
+       return model->data_surfaces + surfacenum + model->firstmodelsurface;
+}
+
+
+//PF_getsurfacenumpoints, // #434 float(entity e, float s) getsurfacenumpoints = #434;
+void VM_getsurfacenumpoints(void)
+{
+       dp_model_t *model;
+       msurface_t *surface;
+       VM_SAFEPARMCOUNT(2, VM_getsurfacenumpoints);
+       // return 0 if no such surface
+       if (!(model = getmodel(PRVM_G_EDICT(OFS_PARM0))) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+       {
+               PRVM_G_FLOAT(OFS_RETURN) = 0;
+               return;
+       }
+
+       // note: this (incorrectly) assumes it is a simple polygon
+       PRVM_G_FLOAT(OFS_RETURN) = surface->num_vertices;
+}
+//PF_getsurfacepoint,     // #435 vector(entity e, float s, float n) getsurfacepoint = #435;
+void VM_getsurfacepoint(void)
+{
+       prvm_edict_t *ed;
+       dp_model_t *model;
+       msurface_t *surface;
+       int pointnum;
+       VM_SAFEPARMCOUNT(3, VM_getsurfacepoint);
+       VectorClear(PRVM_G_VECTOR(OFS_RETURN));
+       ed = PRVM_G_EDICT(OFS_PARM0);
+       if (!(model = getmodel(ed)) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+               return;
+       // note: this (incorrectly) assumes it is a simple polygon
+       pointnum = (int)PRVM_G_FLOAT(OFS_PARM2);
+       if (pointnum < 0 || pointnum >= surface->num_vertices)
+               return;
+       applytransform_forward(&(model->surfmesh.data_vertex3f + 3 * surface->num_firstvertex)[pointnum * 3], ed, PRVM_G_VECTOR(OFS_RETURN));
+}
+//PF_getsurfacepointattribute,     // #486 vector(entity e, float s, float n, float a) getsurfacepointattribute = #486;
+// float SPA_POSITION = 0;
+// float SPA_S_AXIS = 1;
+// float SPA_T_AXIS = 2;
+// float SPA_R_AXIS = 3; // same as SPA_NORMAL
+// float SPA_TEXCOORDS0 = 4;
+// float SPA_LIGHTMAP0_TEXCOORDS = 5;
+// float SPA_LIGHTMAP0_COLOR = 6;
+void VM_getsurfacepointattribute(void)
+{
+       prvm_edict_t *ed;
+       dp_model_t *model;
+       msurface_t *surface;
+       int pointnum;
+       int attributetype;
+
+       VM_SAFEPARMCOUNT(4, VM_getsurfacepoint);
+       VectorClear(PRVM_G_VECTOR(OFS_RETURN));
+       ed = PRVM_G_EDICT(OFS_PARM0);
+       if (!(model = getmodel(ed)) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+               return;
+       pointnum = (int)PRVM_G_FLOAT(OFS_PARM2);
+       if (pointnum < 0 || pointnum >= surface->num_vertices)
+               return;
+       attributetype = (int) PRVM_G_FLOAT(OFS_PARM3);
+
+       switch( attributetype ) {
+               // float SPA_POSITION = 0;
+               case 0:
+                       applytransform_forward(&(model->surfmesh.data_vertex3f + 3 * surface->num_firstvertex)[pointnum * 3], ed, PRVM_G_VECTOR(OFS_RETURN));
+                       break;
+               // float SPA_S_AXIS = 1;
+               case 1:
+                       applytransform_forward_direction(&(model->surfmesh.data_svector3f + 3 * surface->num_firstvertex)[pointnum * 3], ed, PRVM_G_VECTOR(OFS_RETURN));
+                       break;
+               // float SPA_T_AXIS = 2;
+               case 2:
+                       applytransform_forward_direction(&(model->surfmesh.data_tvector3f + 3 * surface->num_firstvertex)[pointnum * 3], ed, PRVM_G_VECTOR(OFS_RETURN));
+                       break;
+               // float SPA_R_AXIS = 3; // same as SPA_NORMAL
+               case 3:
+                       applytransform_forward_direction(&(model->surfmesh.data_normal3f + 3 * surface->num_firstvertex)[pointnum * 3], ed, PRVM_G_VECTOR(OFS_RETURN));
+                       break;
+               // float SPA_TEXCOORDS0 = 4;
+               case 4: {
+                       float *ret = PRVM_G_VECTOR(OFS_RETURN);
+                       float *texcoord = &(model->surfmesh.data_texcoordtexture2f + 2 * surface->num_firstvertex)[pointnum * 2];
+                       ret[0] = texcoord[0];
+                       ret[1] = texcoord[1];
+                       ret[2] = 0.0f;
+                       break;
+               }
+               // float SPA_LIGHTMAP0_TEXCOORDS = 5;
+               case 5: {
+                       float *ret = PRVM_G_VECTOR(OFS_RETURN);
+                       float *texcoord = &(model->surfmesh.data_texcoordlightmap2f + 2 * surface->num_firstvertex)[pointnum * 2];
+                       ret[0] = texcoord[0];
+                       ret[1] = texcoord[1];
+                       ret[2] = 0.0f;
+                       break;
+               }
+               // float SPA_LIGHTMAP0_COLOR = 6;
+               case 6:
+                       // ignore alpha for now..
+                       VectorCopy( &(model->surfmesh.data_lightmapcolor4f + 4 * surface->num_firstvertex)[pointnum * 4], PRVM_G_VECTOR(OFS_RETURN));
+                       break;
+               default:
+                       VectorSet( PRVM_G_VECTOR(OFS_RETURN), 0.0f, 0.0f, 0.0f );
+                       break;
+       }
+}
+//PF_getsurfacenormal,    // #436 vector(entity e, float s) getsurfacenormal = #436;
+void VM_getsurfacenormal(void)
+{
+       dp_model_t *model;
+       msurface_t *surface;
+       vec3_t normal;
+       VM_SAFEPARMCOUNT(2, VM_getsurfacenormal);
+       VectorClear(PRVM_G_VECTOR(OFS_RETURN));
+       if (!(model = getmodel(PRVM_G_EDICT(OFS_PARM0))) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+               return;
+       // note: this only returns the first triangle, so it doesn't work very
+       // well for curved surfaces or arbitrary meshes
+       TriangleNormal((model->surfmesh.data_vertex3f + 3 * surface->num_firstvertex), (model->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + 3, (model->surfmesh.data_vertex3f + 3 * surface->num_firstvertex) + 6, normal);
+       applytransform_forward_normal(normal, PRVM_G_EDICT(OFS_PARM0), PRVM_G_VECTOR(OFS_RETURN));
+       VectorNormalize(PRVM_G_VECTOR(OFS_RETURN));
+}
+//PF_getsurfacetexture,   // #437 string(entity e, float s) getsurfacetexture = #437;
+void VM_getsurfacetexture(void)
+{
+       dp_model_t *model;
+       msurface_t *surface;
+       VM_SAFEPARMCOUNT(2, VM_getsurfacetexture);
+       PRVM_G_INT(OFS_RETURN) = OFS_NULL;
+       if (!(model = getmodel(PRVM_G_EDICT(OFS_PARM0))) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+               return;
+       PRVM_G_INT(OFS_RETURN) = PRVM_SetTempString(surface->texture->name);
+}
+//PF_getsurfacenearpoint, // #438 float(entity e, vector p) getsurfacenearpoint = #438;
+void VM_getsurfacenearpoint(void)
+{
+       int surfacenum, best;
+       vec3_t clipped, p;
+       vec_t dist, bestdist;
+       prvm_edict_t *ed;
+       dp_model_t *model;
+       msurface_t *surface;
+       vec_t *point;
+       VM_SAFEPARMCOUNT(2, VM_getsurfacenearpoint);
+       PRVM_G_FLOAT(OFS_RETURN) = -1;
+       ed = PRVM_G_EDICT(OFS_PARM0);
+       point = PRVM_G_VECTOR(OFS_PARM1);
+
+       if (!ed || ed->priv.server->free)
+               return;
+       model = getmodel(ed);
+       if (!model || !model->num_surfaces)
+               return;
+
+       applytransform_inverted(point, ed, p);
+       best = -1;
+       bestdist = 1000000000;
+       for (surfacenum = 0;surfacenum < model->nummodelsurfaces;surfacenum++)
+       {
+               surface = model->data_surfaces + surfacenum + model->firstmodelsurface;
+               // first see if the nearest point on the surface's box is closer than the previous match
+               clipped[0] = bound(surface->mins[0], p[0], surface->maxs[0]) - p[0];
+               clipped[1] = bound(surface->mins[1], p[1], surface->maxs[1]) - p[1];
+               clipped[2] = bound(surface->mins[2], p[2], surface->maxs[2]) - p[2];
+               dist = VectorLength2(clipped);
+               if (dist < bestdist)
+               {
+                       // it is, check the nearest point on the actual geometry
+                       clippointtosurface(model, surface, p, clipped);
+                       VectorSubtract(clipped, p, clipped);
+                       dist += VectorLength2(clipped);
+                       if (dist < bestdist)
+                       {
+                               // that's closer too, store it as the best match
+                               best = surfacenum;
+                               bestdist = dist;
+                       }
+               }
+       }
+       PRVM_G_FLOAT(OFS_RETURN) = best;
+}
+//PF_getsurfaceclippedpoint, // #439 vector(entity e, float s, vector p) getsurfaceclippedpoint = #439;
+void VM_getsurfaceclippedpoint(void)
+{
+       prvm_edict_t *ed;
+       dp_model_t *model;
+       msurface_t *surface;
+       vec3_t p, out;
+       VM_SAFEPARMCOUNT(3, VM_te_getsurfaceclippedpoint);
+       VectorClear(PRVM_G_VECTOR(OFS_RETURN));
+       ed = PRVM_G_EDICT(OFS_PARM0);
+       if (!(model = getmodel(ed)) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+               return;
+       applytransform_inverted(PRVM_G_VECTOR(OFS_PARM2), ed, p);
+       clippointtosurface(model, surface, p, out);
+       VectorAdd(out, ed->fields.server->origin, PRVM_G_VECTOR(OFS_RETURN));
+}
+
+//PF_getsurfacenumtriangles, // #??? float(entity e, float s) getsurfacenumtriangles = #???;
+void VM_getsurfacenumtriangles(void)
+{
+       dp_model_t *model;
+       msurface_t *surface;
+       VM_SAFEPARMCOUNT(2, VM_SV_getsurfacenumtriangles);
+       // return 0 if no such surface
+       if (!(model = getmodel(PRVM_G_EDICT(OFS_PARM0))) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+       {
+               PRVM_G_FLOAT(OFS_RETURN) = 0;
+               return;
+       }
+
+       // note: this (incorrectly) assumes it is a simple polygon
+       PRVM_G_FLOAT(OFS_RETURN) = surface->num_triangles;
+}
+//PF_getsurfacetriangle,     // #??? vector(entity e, float s, float n) getsurfacetriangle = #???;
+void VM_getsurfacetriangle(void)
+{
+       prvm_edict_t *ed;
+       dp_model_t *model;
+       msurface_t *surface;
+       int trinum;
+       VM_SAFEPARMCOUNT(3, VM_SV_getsurfacetriangle);
+       VectorClear(PRVM_G_VECTOR(OFS_RETURN));
+       ed = PRVM_G_EDICT(OFS_PARM0);
+       if (!(model = getmodel(ed)) || !(surface = getsurface(model, (int)PRVM_G_FLOAT(OFS_PARM1))))
+               return;
+       trinum = (int)PRVM_G_FLOAT(OFS_PARM2);
+       if (trinum < 0 || trinum >= surface->num_triangles)
+               return;
+       // FIXME: implement rotation/scaling
+       VectorCopy(&(model->surfmesh.data_element3i + 3 * surface->num_firsttriangle)[trinum * 3], PRVM_G_VECTOR(OFS_RETURN));
+}