+ 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 = (surface->groupmesh->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] = surface->groupmesh->data_vertex3f + e[0] * 3;
+ v[1] = surface->groupmesh->data_vertex3f + e[1] * 3;
+ v[2] = surface->groupmesh->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(edict_t *ed, int surfacenum)
+{
+ int modelindex;
+ model_t *model;
+ if (!ed || ed->e->free)
+ return NULL;
+ modelindex = ed->v->modelindex;
+ if (modelindex < 1 || modelindex >= MAX_MODELS)
+ return NULL;
+ model = sv.models[modelindex];
+ if (surfacenum < 0 || surfacenum >= model->nummodelsurfaces)
+ return NULL;
+ return model->brush.data_surfaces + surfacenum + model->firstmodelsurface;
+}
+
+
+//PF_getsurfacenumpoints, // #434 float(entity e, float s) getsurfacenumpoints = #434;
+void PF_getsurfacenumpoints(void)
+{
+ msurface_t *surface;
+ // return 0 if no such surface
+ if (!(surface = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
+ {
+ G_FLOAT(OFS_RETURN) = 0;
+ return;
+ }
+
+ // note: this (incorrectly) assumes it is a simple polygon
+ G_FLOAT(OFS_RETURN) = surface->num_vertices;
+}
+//PF_getsurfacepoint, // #435 vector(entity e, float s, float n) getsurfacepoint = #435;
+void PF_getsurfacepoint(void)
+{
+ edict_t *ed;
+ msurface_t *surface;
+ int pointnum;
+ VectorClear(G_VECTOR(OFS_RETURN));
+ ed = G_EDICT(OFS_PARM0);
+ if (!ed || ed->e->free)
+ return;
+ if (!(surface = getsurface(ed, G_FLOAT(OFS_PARM1))))
+ return;
+ // note: this (incorrectly) assumes it is a simple polygon
+ pointnum = G_FLOAT(OFS_PARM2);
+ if (pointnum < 0 || pointnum >= surface->num_vertices)
+ return;
+ // FIXME: implement rotation/scaling
+ VectorAdd(&(surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex)[pointnum * 3], ed->v->origin, G_VECTOR(OFS_RETURN));
+}
+//PF_getsurfacenormal, // #436 vector(entity e, float s) getsurfacenormal = #436;
+void PF_getsurfacenormal(void)
+{
+ msurface_t *surface;
+ vec3_t normal;
+ VectorClear(G_VECTOR(OFS_RETURN));
+ if (!(surface = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
+ return;
+ // FIXME: implement rotation/scaling
+ // note: this (incorrectly) assumes it is a simple polygon
+ // note: this only returns the first triangle, so it doesn't work very
+ // well for curved surfaces or arbitrary meshes
+ TriangleNormal((surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex), (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + 3, (surface->groupmesh->data_vertex3f + 3 * surface->num_firstvertex) + 6, normal);
+ VectorNormalize(normal);
+ VectorCopy(normal, G_VECTOR(OFS_RETURN));
+}
+//PF_getsurfacetexture, // #437 string(entity e, float s) getsurfacetexture = #437;
+void PF_getsurfacetexture(void)
+{
+ msurface_t *surface;
+ G_INT(OFS_RETURN) = 0;
+ if (!(surface = getsurface(G_EDICT(OFS_PARM0), G_FLOAT(OFS_PARM1))))
+ return;
+ G_INT(OFS_RETURN) = PR_SetString(surface->texture->name);
+}
+//PF_getsurfacenearpoint, // #438 float(entity e, vector p) getsurfacenearpoint = #438;
+void PF_getsurfacenearpoint(void)
+{
+ int surfacenum, best, modelindex;
+ vec3_t clipped, p;
+ vec_t dist, bestdist;
+ edict_t *ed;
+ model_t *model;
+ msurface_t *surface;
+ vec_t *point;
+ G_FLOAT(OFS_RETURN) = -1;
+ ed = G_EDICT(OFS_PARM0);
+ point = G_VECTOR(OFS_PARM1);
+
+ if (!ed || ed->e->free)
+ return;
+ modelindex = ed->v->modelindex;
+ if (modelindex < 1 || modelindex >= MAX_MODELS)
+ return;
+ model = sv.models[modelindex];
+ if (!model->brush.num_surfaces)
+ return;
+
+ // FIXME: implement rotation/scaling
+ VectorSubtract(point, ed->v->origin, p);
+ best = -1;
+ bestdist = 1000000000;
+ for (surfacenum = 0;surfacenum < model->nummodelsurfaces;surfacenum++)
+ {
+ surface = model->brush.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(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;
+ }
+ }
+ }
+ G_FLOAT(OFS_RETURN) = best;
+}
+//PF_getsurfaceclippedpoint, // #439 vector(entity e, float s, vector p) getsurfaceclippedpoint = #439;
+void PF_getsurfaceclippedpoint(void)
+{
+ edict_t *ed;
+ msurface_t *surface;
+ vec3_t p, out;
+ VectorClear(G_VECTOR(OFS_RETURN));
+ ed = G_EDICT(OFS_PARM0);
+ if (!ed || ed->e->free)
+ return;
+ if (!(surface = getsurface(ed, G_FLOAT(OFS_PARM1))))
+ return;
+ // FIXME: implement rotation/scaling
+ VectorSubtract(G_VECTOR(OFS_PARM2), ed->v->origin, p);
+ clippointtosurface(surface, p, out);
+ // FIXME: implement rotation/scaling
+ VectorAdd(out, ed->v->origin, G_VECTOR(OFS_RETURN));
+}
+
+#define MAX_PRFILES 256
+
+qfile_t *pr_files[MAX_PRFILES];
+
+void PR_Files_Init(void)
+{
+ memset(pr_files, 0, sizeof(pr_files));
+}
+
+void PR_Files_CloseAll(void)
+{
+ int i;
+ for (i = 0;i < MAX_PRFILES;i++)
+ {
+ if (pr_files[i])
+ FS_Close(pr_files[i]);
+ pr_files[i] = NULL;
+ }
+}
+
+//float(string s) stof = #81; // get numerical value from a string
+void PF_stof(void)
+{
+ char string[STRINGTEMP_LENGTH];
+ PF_VarString(0, string, sizeof(string));
+ G_FLOAT(OFS_RETURN) = atof(string);
+}
+
+//float(string filename, float mode) fopen = #110; // opens a file inside quake/gamedir/data/ (mode is FILE_READ, FILE_APPEND, or FILE_WRITE), returns fhandle >= 0 if successful, or fhandle < 0 if unable to open file for any reason
+void PF_fopen(void)
+{
+ int filenum, mode;
+ char *modestring, *filename;
+ for (filenum = 0;filenum < MAX_PRFILES;filenum++)
+ if (pr_files[filenum] == NULL)
+ break;
+ if (filenum >= MAX_PRFILES)
+ {
+ Con_Printf("PF_fopen: ran out of file handles (%i)\n", MAX_PRFILES);
+ G_FLOAT(OFS_RETURN) = -2;
+ return;
+ }
+ mode = G_FLOAT(OFS_PARM1);
+ switch(mode)
+ {
+ case 0: // FILE_READ
+ modestring = "rb";
+ break;
+ case 1: // FILE_APPEND
+ modestring = "ab";
+ break;
+ case 2: // FILE_WRITE
+ modestring = "wb";
+ break;
+ default:
+ Con_Printf("PF_fopen: no such mode %i (valid: 0 = read, 1 = append, 2 = write)\n", mode);
+ G_FLOAT(OFS_RETURN) = -3;
+ return;
+ }
+ filename = G_STRING(OFS_PARM0);
+ // -4 failure (dangerous/non-portable filename) removed, FS_Open checks
+ pr_files[filenum] = FS_Open(va("data/%s", filename), modestring, false, false);
+
+ if (pr_files[filenum] == NULL && modestring == "rb")
+ pr_files[filenum] = FS_Open(filename, modestring, false, false);
+
+ if (pr_files[filenum] == NULL)
+ G_FLOAT(OFS_RETURN) = -1;
+ else
+ G_FLOAT(OFS_RETURN) = filenum;
+}
+
+//void(float fhandle) fclose = #111; // closes a file
+void PF_fclose(void)
+{
+ int filenum = G_FLOAT(OFS_PARM0);
+ if (filenum < 0 || filenum >= MAX_PRFILES)
+ {
+ Con_Printf("PF_fclose: invalid file handle %i\n", filenum);
+ return;
+ }
+ if (pr_files[filenum] == NULL)
+ {
+ Con_Printf("PF_fclose: no such file handle %i (or file has been closed)\n", filenum);
+ return;
+ }
+ FS_Close(pr_files[filenum]);
+ pr_files[filenum] = NULL;
+}
+
+//string(float fhandle) fgets = #112; // reads a line of text from the file and returns as a tempstring
+void PF_fgets(void)
+{
+ int c, end;
+ static char string[STRINGTEMP_LENGTH];
+ int filenum = G_FLOAT(OFS_PARM0);
+ if (filenum < 0 || filenum >= MAX_PRFILES)
+ {
+ Con_Printf("PF_fgets: invalid file handle %i\n", filenum);
+ return;
+ }
+ if (pr_files[filenum] == NULL)
+ {
+ Con_Printf("PF_fgets: no such file handle %i (or file has been closed)\n", filenum);
+ return;
+ }
+ end = 0;
+ for (;;)
+ {
+ c = FS_Getc(pr_files[filenum]);
+ if (c == '\r' || c == '\n' || c < 0)
+ break;
+ if (end < STRINGTEMP_LENGTH - 1)
+ string[end++] = c;
+ }
+ string[end] = 0;
+ // remove \n following \r
+ if (c == '\r')
+ {
+ c = FS_Getc(pr_files[filenum]);
+ if (c != '\n')
+ FS_UnGetc(pr_files[filenum], (unsigned char)c);
+ }
+ if (developer.integer)
+ Con_Printf("fgets: %s\n", string);
+ if (c >= 0 || end)
+ G_INT(OFS_RETURN) = PR_SetString(string);
+ else
+ G_INT(OFS_RETURN) = 0;
+}
+
+//void(float fhandle, string s) fputs = #113; // writes a line of text to the end of the file
+void PF_fputs(void)
+{
+ int stringlength;
+ char string[STRINGTEMP_LENGTH];
+ int filenum = G_FLOAT(OFS_PARM0);
+ if (filenum < 0 || filenum >= MAX_PRFILES)
+ {
+ Con_Printf("PF_fputs: invalid file handle %i\n", filenum);
+ return;
+ }
+ if (pr_files[filenum] == NULL)
+ {
+ Con_Printf("PF_fputs: no such file handle %i (or file has been closed)\n", filenum);
+ return;
+ }
+ PF_VarString(1, string, sizeof(string));
+ if ((stringlength = strlen(string)))
+ FS_Write(pr_files[filenum], string, stringlength);
+ if (developer.integer)
+ Con_Printf("fputs: %s\n", string);
+}
+
+//float(string s) strlen = #114; // returns how many characters are in a string
+void PF_strlen(void)
+{
+ char *s;
+ s = G_STRING(OFS_PARM0);
+ if (s)
+ G_FLOAT(OFS_RETURN) = strlen(s);
+ else
+ G_FLOAT(OFS_RETURN) = 0;
+}
+
+//string(string s1, string s2) strcat = #115; // concatenates two strings (for example "abc", "def" would return "abcdef") and returns as a tempstring
+void PF_strcat(void)
+{
+ char *s = PR_GetTempString();
+ PF_VarString(0, s, STRINGTEMP_LENGTH);
+ G_INT(OFS_RETURN) = PR_SetString(s);
+}
+
+//string(string s, float start, float length) substring = #116; // returns a section of a string as a tempstring
+void PF_substring(void)
+{
+ int i, start, length;
+ char *s, *string = PR_GetTempString();
+ s = G_STRING(OFS_PARM0);
+ start = G_FLOAT(OFS_PARM1);
+ length = G_FLOAT(OFS_PARM2);
+ if (!s)
+ s = "";
+ for (i = 0;i < start && *s;i++, s++);
+ for (i = 0;i < STRINGTEMP_LENGTH - 1 && *s && i < length;i++, s++)
+ string[i] = *s;
+ string[i] = 0;
+ G_INT(OFS_RETURN) = PR_SetString(string);
+}
+
+//vector(string s) stov = #117; // returns vector value from a string
+void PF_stov(void)
+{
+ char string[STRINGTEMP_LENGTH];
+ PF_VarString(0, string, sizeof(string));
+ Math_atov(string, G_VECTOR(OFS_RETURN));
+}
+
+//string(string s) strzone = #118; // makes a copy of a string into the string zone and returns it, this is often used to keep around a tempstring for longer periods of time (tempstrings are replaced often)
+void PF_strzone(void)
+{
+ char *in, *out;
+ in = G_STRING(OFS_PARM0);
+ out = PR_Alloc(strlen(in) + 1);
+ strcpy(out, in);
+ G_INT(OFS_RETURN) = PR_SetString(out);
+}
+
+//void(string s) strunzone = #119; // removes a copy of a string from the string zone (you can not use that string again or it may crash!!!)
+void PF_strunzone(void)
+{
+ PR_Free(G_STRING(OFS_PARM0));
+}
+
+//void(entity e, string s) clientcommand = #440; // executes a command string as if it came from the specified client
+//this function originally written by KrimZon, made shorter by LordHavoc
+void PF_clientcommand (void)
+{
+ client_t *temp_client;
+ int i;
+
+ //find client for this entity
+ i = (NUM_FOR_EDICT(G_EDICT(OFS_PARM0)) - 1);
+ if (i < 0 || i >= svs.maxclients || !svs.clients[i].active)
+ {
+ Con_Print("PF_clientcommand: entity is not a client\n");
+ return;
+ }
+
+ temp_client = host_client;
+ host_client = svs.clients + i;
+ Cmd_ExecuteString (G_STRING(OFS_PARM1), src_client);
+ host_client = temp_client;
+}
+
+//float(string s) tokenize = #441; // takes apart a string into individal words (access them with argv), returns how many
+//this function originally written by KrimZon, made shorter by LordHavoc
+//20040203: rewritten by LordHavoc (no longer uses allocations)
+int num_tokens = 0;
+char *tokens[256], tokenbuf[4096];
+void PF_tokenize (void)
+{
+ int pos;
+ const char *p;
+ p = G_STRING(OFS_PARM0);
+
+ num_tokens = 0;
+ pos = 0;
+ while(COM_ParseToken(&p, false))
+ {
+ if (num_tokens >= (int)(sizeof(tokens)/sizeof(tokens[0])))
+ break;
+ if (pos + strlen(com_token) + 1 > sizeof(tokenbuf))
+ break;
+ tokens[num_tokens++] = tokenbuf + pos;
+ strcpy(tokenbuf + pos, com_token);
+ pos += strlen(com_token) + 1;
+ }
+
+ G_FLOAT(OFS_RETURN) = num_tokens;
+}
+
+//string(float n) argv = #442; // returns a word from the tokenized string (returns nothing for an invalid index)
+//this function originally written by KrimZon, made shorter by LordHavoc
+void PF_argv (void)
+{
+ int token_num = G_FLOAT(OFS_PARM0);
+ if (token_num >= 0 && token_num < num_tokens)
+ G_INT(OFS_RETURN) = PR_SetString(tokens[token_num]);
+ else
+ G_INT(OFS_RETURN) = PR_SetString("");
+}
+
+//void(entity e, entity tagentity, string tagname) setattachment = #443; // attachs e to a tag on tagentity (note: use "" to attach to entity origin/angles instead of a tag)
+void PF_setattachment (void)
+{
+ edict_t *e = G_EDICT(OFS_PARM0);
+ edict_t *tagentity = G_EDICT(OFS_PARM1);
+ char *tagname = G_STRING(OFS_PARM2);
+ eval_t *v;
+ int modelindex;
+ model_t *model;
+
+ if (e == sv.edicts)
+ PF_WARNING("setattachment: can not modify world entity\n");
+ if (e->e->free)
+ PF_WARNING("setattachment: can not modify free entity\n");
+
+ if (tagentity == NULL)
+ tagentity = sv.edicts;
+
+ v = GETEDICTFIELDVALUE(e, eval_tag_entity);
+ if (v)
+ v->edict = EDICT_TO_PROG(tagentity);
+
+ v = GETEDICTFIELDVALUE(e, eval_tag_index);
+ if (v)
+ v->_float = 0;
+ if (tagentity != NULL && tagentity != sv.edicts && tagname && tagname[0])
+ {
+ modelindex = (int)tagentity->v->modelindex;
+ if (modelindex >= 0 && modelindex < MAX_MODELS && (model = sv.models[modelindex]))
+ {
+ v->_float = Mod_Alias_GetTagIndexForName(model, tagentity->v->skin, tagname);
+ if (v->_float == 0)
+ Con_DPrintf("setattachment(edict %i, edict %i, string \"%s\"): tried to find tag named \"%s\" on entity %i (model \"%s\") but could not find it\n", NUM_FOR_EDICT(e), NUM_FOR_EDICT(tagentity), tagname, tagname, NUM_FOR_EDICT(tagentity), model->name);
+ }
+ else
+ Con_DPrintf("setattachment(edict %i, edict %i, string \"%s\"): tried to find tag named \"%s\" on entity %i but it has no model\n", NUM_FOR_EDICT(e), NUM_FOR_EDICT(tagentity), tagname, tagname, NUM_FOR_EDICT(tagentity));
+ }
+}
+
+/////////////////////////////////////////
+// DP_MD3_TAGINFO extension coded by VorteX
+
+int SV_GetTagIndex (edict_t *e, char *tagname)
+{
+ int i;
+ model_t *model;
+
+ i = e->v->modelindex;
+ if (i < 1 || i >= MAX_MODELS)
+ return -1;
+ model = sv.models[i];
+
+ return Mod_Alias_GetTagIndexForName(model, e->v->skin, tagname);
+};
+
+// Warnings/errors code:
+// 0 - normal (everything all-right)
+// 1 - world entity
+// 2 - free entity
+// 3 - null or non-precached model
+// 4 - no tags with requested index
+// 5 - runaway loop at attachment chain
+extern cvar_t cl_bob;
+extern cvar_t cl_bobcycle;
+extern cvar_t cl_bobup;
+int SV_GetTagMatrix (matrix4x4_t *out, edict_t *ent, int tagindex)
+{
+ eval_t *val;
+ int modelindex, reqframe, attachloop;
+ matrix4x4_t entitymatrix, tagmatrix, attachmatrix;
+ edict_t *attachent;
+ model_t *model;
+
+ Matrix4x4_CreateIdentity(out); // warnings and errors return identical matrix
+
+ if (ent == sv.edicts)
+ return 1;
+ if (ent->e->free)
+ return 2;
+
+ modelindex = (int)ent->v->modelindex;
+ if (modelindex <= 0 || modelindex > MAX_MODELS)
+ return 3;
+
+ model = sv.models[modelindex];
+
+ if (ent->v->frame >= 0 && ent->v->frame < model->numframes && model->animscenes)
+ reqframe = model->animscenes[(int)ent->v->frame].firstframe;
+ else
+ reqframe = 0; // if model has wrong frame, engine automatically switches to model first frame
+
+ // get initial tag matrix
+ if (tagindex)
+ {
+ int ret = Mod_Alias_GetTagMatrix(model, reqframe, tagindex - 1, &tagmatrix);
+ if (ret)
+ return ret;
+ }
+ else
+ Matrix4x4_CreateIdentity(&tagmatrix);
+
+ if ((val = GETEDICTFIELDVALUE(ent, eval_tag_entity)) && val->edict)
+ { // DP_GFX_QUAKE3MODELTAGS, scan all chain and stop on unattached entity
+ attachloop = 0;
+ do
+ {
+ attachent = EDICT_NUM(val->edict); // to this it entity our entity is attached
+ val = GETEDICTFIELDVALUE(ent, eval_tag_index);
+ if (val->_float >= 1 && attachent->v->modelindex >= 1 && attachent->v->modelindex < MAX_MODELS && (model = sv.models[(int)attachent->v->modelindex]) && model->animscenes && attachent->v->frame >= 0 && attachent->v->frame < model->numframes)
+ Mod_Alias_GetTagMatrix(model, model->animscenes[(int)attachent->v->frame].firstframe, val->_float - 1, &attachmatrix);
+ else
+ Matrix4x4_CreateIdentity(&attachmatrix);
+
+ // apply transformation by child entity matrix
+ val = GETEDICTFIELDVALUE(ent, eval_scale);
+ if (val->_float == 0)
+ val->_float = 1;
+ Matrix4x4_CreateFromQuakeEntity(&entitymatrix, ent->v->origin[0], ent->v->origin[1], ent->v->origin[2], -ent->v->angles[0], ent->v->angles[1], ent->v->angles[2], val->_float);
+ Matrix4x4_Concat(out, &entitymatrix, &tagmatrix);
+ out->m[0][3] = entitymatrix.m[0][3] + val->_float*(entitymatrix.m[0][0]*tagmatrix.m[0][3] + entitymatrix.m[0][1]*tagmatrix.m[1][3] + entitymatrix.m[0][2]*tagmatrix.m[2][3]);
+ out->m[1][3] = entitymatrix.m[1][3] + val->_float*(entitymatrix.m[1][0]*tagmatrix.m[0][3] + entitymatrix.m[1][1]*tagmatrix.m[1][3] + entitymatrix.m[1][2]*tagmatrix.m[2][3]);
+ out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);
+ Matrix4x4_Copy(&tagmatrix, out);
+
+ // finally transformate by matrix of tag on parent entity
+ Matrix4x4_Concat(out, &attachmatrix, &tagmatrix);
+ out->m[0][3] = attachmatrix.m[0][3] + attachmatrix.m[0][0]*tagmatrix.m[0][3] + attachmatrix.m[0][1]*tagmatrix.m[1][3] + attachmatrix.m[0][2]*tagmatrix.m[2][3];
+ out->m[1][3] = attachmatrix.m[1][3] + attachmatrix.m[1][0]*tagmatrix.m[0][3] + attachmatrix.m[1][1]*tagmatrix.m[1][3] + attachmatrix.m[1][2]*tagmatrix.m[2][3];
+ out->m[2][3] = attachmatrix.m[2][3] + attachmatrix.m[2][0]*tagmatrix.m[0][3] + attachmatrix.m[2][1]*tagmatrix.m[1][3] + attachmatrix.m[2][2]*tagmatrix.m[2][3];
+ Matrix4x4_Copy(&tagmatrix, out);
+
+ ent = attachent;
+ attachloop += 1;
+ if (attachloop > 255) // prevent runaway looping
+ return 5;
+ }
+ while ((val = GETEDICTFIELDVALUE(ent, eval_tag_entity)) && val->edict);
+ }
+
+ // normal or RENDER_VIEWMODEL entity (or main parent entity on attach chain)
+ val = GETEDICTFIELDVALUE(ent, eval_scale);
+ if (val->_float == 0)
+ val->_float = 1;
+ // Alias models have inverse pitch, bmodels can't have tags, so don't check for modeltype...
+ Matrix4x4_CreateFromQuakeEntity(&entitymatrix, ent->v->origin[0], ent->v->origin[1], ent->v->origin[2], -ent->v->angles[0], ent->v->angles[1], ent->v->angles[2], val->_float);
+ Matrix4x4_Concat(out, &entitymatrix, &tagmatrix);
+ out->m[0][3] = entitymatrix.m[0][3] + val->_float*(entitymatrix.m[0][0]*tagmatrix.m[0][3] + entitymatrix.m[0][1]*tagmatrix.m[1][3] + entitymatrix.m[0][2]*tagmatrix.m[2][3]);
+ out->m[1][3] = entitymatrix.m[1][3] + val->_float*(entitymatrix.m[1][0]*tagmatrix.m[0][3] + entitymatrix.m[1][1]*tagmatrix.m[1][3] + entitymatrix.m[1][2]*tagmatrix.m[2][3]);
+ out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);
+
+ if ((val = GETEDICTFIELDVALUE(ent, eval_viewmodelforclient)) && val->edict)
+ {// RENDER_VIEWMODEL magic
+ Matrix4x4_Copy(&tagmatrix, out);
+ ent = EDICT_NUM(val->edict);
+
+ val = GETEDICTFIELDVALUE(ent, eval_scale);
+ if (val->_float == 0)
+ val->_float = 1;
+
+ Matrix4x4_CreateFromQuakeEntity(&entitymatrix, ent->v->origin[0], ent->v->origin[1], ent->v->origin[2] + ent->v->view_ofs[2], ent->v->v_angle[0], ent->v->v_angle[1], ent->v->v_angle[2], val->_float);
+ Matrix4x4_Concat(out, &entitymatrix, &tagmatrix);
+ out->m[0][3] = entitymatrix.m[0][3] + val->_float*(entitymatrix.m[0][0]*tagmatrix.m[0][3] + entitymatrix.m[0][1]*tagmatrix.m[1][3] + entitymatrix.m[0][2]*tagmatrix.m[2][3]);
+ out->m[1][3] = entitymatrix.m[1][3] + val->_float*(entitymatrix.m[1][0]*tagmatrix.m[0][3] + entitymatrix.m[1][1]*tagmatrix.m[1][3] + entitymatrix.m[1][2]*tagmatrix.m[2][3]);
+ out->m[2][3] = entitymatrix.m[2][3] + val->_float*(entitymatrix.m[2][0]*tagmatrix.m[0][3] + entitymatrix.m[2][1]*tagmatrix.m[1][3] + entitymatrix.m[2][2]*tagmatrix.m[2][3]);
+
+ /*
+ // Cl_bob, ported from rendering code
+ if (ent->v->health > 0 && cl_bob.value && cl_bobcycle.value)
+ {
+ double bob, cycle;
+ // LordHavoc: this code is *weird*, but not replacable (I think it
+ // should be done in QC on the server, but oh well, quake is quake)
+ // LordHavoc: figured out bobup: the time at which the sin is at 180
+ // degrees (which allows lengthening or squishing the peak or valley)
+ cycle = sv.time/cl_bobcycle.value;
+ cycle -= (int)cycle;
+ if (cycle < cl_bobup.value)
+ cycle = sin(M_PI * cycle / cl_bobup.value);
+ else
+ cycle = sin(M_PI + M_PI * (cycle-cl_bobup.value)/(1.0 - cl_bobup.value));
+ // bob is proportional to velocity in the xy plane
+ // (don't count Z, or jumping messes it up)
+ bob = sqrt(ent->v->velocity[0]*ent->v->velocity[0] + ent->v->velocity[1]*ent->v->velocity[1])*cl_bob.value;
+ bob = bob*0.3 + bob*0.7*cycle;
+ out->m[2][3] += bound(-7, bob, 4);
+ }
+ */
+ }
+ return 0;
+}
+
+//float(entity ent, string tagname) gettagindex;
+
+void PF_gettagindex (void)
+{
+ edict_t *ent = G_EDICT(OFS_PARM0);
+ char *tag_name = G_STRING(OFS_PARM1);
+ int modelindex, tag_index;
+
+ if (ent == sv.edicts)
+ PF_WARNING("gettagindex: can't affect world entity\n");
+ if (ent->e->free)
+ PF_WARNING("gettagindex: can't affect free entity\n");
+
+ modelindex = (int)ent->v->modelindex;
+ tag_index = 0;
+ if (modelindex <= 0 || modelindex > MAX_MODELS)
+ Con_DPrintf("gettagindex(entity #%i): null or non-precached model\n", NUM_FOR_EDICT(ent));
+ else
+ {
+ tag_index = SV_GetTagIndex(ent, tag_name);
+ if (tag_index == 0)
+ Con_DPrintf("gettagindex(entity #%i): tag \"%s\" not found\n", NUM_FOR_EDICT(ent), tag_name);
+ }
+ G_FLOAT(OFS_RETURN) = tag_index;
+};
+
+//vector(entity ent, float tagindex) gettaginfo;
+void PF_gettaginfo (void)
+{
+ edict_t *e = G_EDICT(OFS_PARM0);
+ int tagindex = (int)G_FLOAT(OFS_PARM1);
+ matrix4x4_t tag_matrix;
+ int returncode;
+
+ returncode = SV_GetTagMatrix(&tag_matrix, e, tagindex);
+ Matrix4x4_ToVectors(&tag_matrix, pr_global_struct->v_forward, pr_global_struct->v_right, pr_global_struct->v_up, G_VECTOR(OFS_RETURN));
+
+ switch(returncode)
+ {
+ case 1:
+ PF_WARNING("gettagindex: can't affect world entity\n");
+ break;
+ case 2:
+ PF_WARNING("gettagindex: can't affect free entity\n");
+ break;
+ case 3:
+ Con_DPrintf("SV_GetTagMatrix(entity #%i): null or non-precached model\n", NUM_FOR_EDICT(e));
+ break;
+ case 4:
+ Con_DPrintf("SV_GetTagMatrix(entity #%i): model has no tag with requested index %i\n", NUM_FOR_EDICT(e), tagindex);
+ break;
+ case 5:
+ Con_DPrintf("SV_GetTagMatrix(entity #%i): runaway loop at attachment chain\n", NUM_FOR_EDICT(e));
+ break;
+ }
+}
+
+
+/////////////////////////////////////////
+// DP_QC_FS_SEARCH extension
+
+// qc fs search handling
+#define MAX_SEARCHES 128
+
+fssearch_t *pr_fssearchlist[MAX_SEARCHES];
+
+void PR_Search_Init(void)
+{
+ memset(pr_fssearchlist,0,sizeof(pr_fssearchlist));
+}
+
+void PR_Search_Reset(void)
+{
+ int i;
+ // reset the fssearch list
+ for(i = 0; i < MAX_SEARCHES; i++)
+ if(pr_fssearchlist[i])
+ FS_FreeSearch(pr_fssearchlist[i]);
+ memset(pr_fssearchlist,0,sizeof(pr_fssearchlist));
+}
+
+/*
+=========
+PF_search_begin
+
+float search_begin(string pattern, float caseinsensitive, float quiet)
+=========
+*/
+void PF_search_begin(void)
+{
+ int handle;
+ char *pattern;
+ int caseinsens, quiet;
+
+ pattern = G_STRING(OFS_PARM0);
+
+ PR_CheckEmptyString(pattern);
+
+ caseinsens = G_FLOAT(OFS_PARM1);
+ quiet = G_FLOAT(OFS_PARM2);
+
+ for(handle = 0; handle < MAX_SEARCHES; handle++)
+ if(!pr_fssearchlist[handle])
+ break;
+
+ if(handle >= MAX_SEARCHES)
+ {
+ Con_Printf("PR_search_begin: ran out of search handles (%i)\n", MAX_SEARCHES);
+ G_FLOAT(OFS_RETURN) = -2;
+ return;
+ }
+
+ if(!(pr_fssearchlist[handle] = FS_Search(pattern,caseinsens, quiet)))
+ G_FLOAT(OFS_RETURN) = -1;
+ else
+ G_FLOAT(OFS_RETURN) = handle;
+}
+
+/*
+=========
+VM_search_end
+
+void search_end(float handle)
+=========
+*/
+void PF_search_end(void)
+{
+ int handle;
+
+ handle = G_FLOAT(OFS_PARM0);