]> git.xonotic.org Git - xonotic/netradiant.git/blobdiff - contrib/bobtoolz/misc.cpp
Remove -Wno-sign-compare
[xonotic/netradiant.git] / contrib / bobtoolz / misc.cpp
index bebc2b24d6105295cf3802c4326ee86fcbf3d3ec..202065fc0a70cd9b3068d8bc435a8df8f70f890d 100644 (file)
-/*\r
-BobToolz plugin for GtkRadiant\r
-Copyright (C) 2001 Gordon Biggans\r
-\r
-This library is free software; you can redistribute it and/or\r
-modify it under the terms of the GNU Lesser General Public\r
-License as published by the Free Software Foundation; either\r
-version 2.1 of the License, or (at your option) any later version.\r
-\r
-This library is distributed in the hope that it will be useful,\r
-but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\r
-Lesser General Public License for more details.\r
-\r
-You should have received a copy of the GNU Lesser General Public\r
-License along with this library; if not, write to the Free Software\r
-Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
-*/\r
-\r
-#include "StdAfx.h"\r
-\r
-#include "DEntity.h"\r
-#include "funchandlers.h"\r
-\r
-#ifdef __linux__\r
-#include <sys/types.h>\r
-#include <unistd.h>\r
-#endif\r
-\r
-/*==========================\r
-               Global Vars\r
-==========================*/\r
-\r
-//HANDLE bsp_process;\r
-char   g_CurrentTexture[256] = "";\r
-\r
-//=============================================================\r
-//=============================================================\r
-\r
-void ReadCurrentTexture()\r
-{\r
-       const char* textureName = g_FuncTable.m_pfnGetCurrentTexture();\r
-       strcpy(g_CurrentTexture, textureName);\r
-}\r
-\r
-const char*  GetCurrentTexture()\r
-{\r
-       ReadCurrentTexture();\r
-       return g_CurrentTexture;\r
-}\r
-\r
-epair_t* GetNextChainItem(epair_t* lastItem, char* key, char* value)\r
-{\r
-       epair_t* nextEPair = g_FuncTable.m_pfnAllocateEpair(key, value);\r
-\r
-       if(lastItem != NULL)\r
-               lastItem->next = nextEPair;\r
-\r
-       return nextEPair;\r
-}\r
-\r
-void MoveBlock(int dir, vec3_t min, vec3_t max, float dist)\r
-{\r
-       switch(dir)\r
-       {\r
-               case MOVE_EAST:\r
-               {\r
-                       min[0]+=dist;\r
-                       max[0]+=dist;\r
-                       break;\r
-               }\r
-               case MOVE_WEST:\r
-               {\r
-                       min[0]-=dist;\r
-                       max[0]-=dist;\r
-                       break;\r
-               }\r
-               case MOVE_NORTH:\r
-               {\r
-                       min[1]+=dist;\r
-                       max[1]+=dist;\r
-                       break;\r
-               }\r
-               case MOVE_SOUTH:\r
-               {\r
-                       min[1]-=dist;\r
-                       max[1]-=dist;\r
-                       break;\r
-               }\r
-       }\r
-}\r
-\r
-void SetInitialStairPos(int dir, vec3_t min, vec3_t max, float width)\r
-{\r
-       switch(dir)\r
-       {\r
-               case MOVE_EAST:\r
-               {\r
-                       max[0] = min[0] + width;\r
-                       break;\r
-               }\r
-               case MOVE_WEST:\r
-               {\r
-                       min[0] = max[0] - width;\r
-                       break;\r
-               }\r
-               case MOVE_NORTH:\r
-               {\r
-                       max[1] = min[1] + width;\r
-                       break;\r
-               }\r
-               case MOVE_SOUTH:\r
-               {\r
-                       min[1] = max[1] - width;\r
-                       break;\r
-               }\r
-       }\r
-}\r
-\r
-char* TranslateString (char *buf)\r
-{\r
-       static  char    buf2[32768];\r
-       int             i, l;\r
-       char    *out;\r
-\r
-       l = strlen(buf);\r
-       out = buf2;\r
-       for (i=0 ; i<l ; i++)\r
-       {\r
-               if (buf[i] == '\n')\r
-               {\r
-                       *out++ = '\r';\r
-                       *out++ = '\n';\r
-               }\r
-               else\r
-                       *out++ = buf[i];\r
-       }\r
-       *out++ = 0;\r
-\r
-       return buf2;\r
-}\r
-\r
-void Sys_ERROR (char* text, ...)\r
-{\r
-       va_list argptr;\r
-       char    buf[32768];\r
-\r
-       va_start (argptr,text);\r
-       vsprintf (buf, text,argptr);\r
-       va_end (argptr);\r
-\r
-       Sys_Printf("BobToolz::ERROR->%s", buf);\r
-}\r
-\r
-/*void Sys_Printf (char *text, ...)\r
-{\r
-       va_list argptr;\r
-       char    buf[32768];\r
-\r
-       va_start (argptr,text);\r
-       vsprintf (buf, text,argptr);\r
-       va_end (argptr);\r
-\r
-       g_FuncTable.m_pfnSysMsg ( buf );\r
-}*/\r
-\r
-char* UnixToDosPath(char* path)\r
-{\r
-#ifndef _WIN32\r
-       return path;\r
-#else\r
-       for(char* p = path; *p; p++)\r
-       {\r
-               if(*p == '/')\r
-                       *p = '\\';\r
-       }\r
-       return path;\r
-#endif\r
-}\r
-\r
-const char* ExtractFilename(const char* path)\r
-{\r
-       char* p = strrchr(path, '/');\r
-       if(!p)\r
-       {\r
-               p = strrchr(path, '\\');\r
-\r
-               if(!p)\r
-                       return path;\r
-       }\r
-       return ++p;\r
-}\r
-\r
-extern char* PLUGIN_NAME;\r
-/*char* GetGameFilename(char* buffer, const char* filename)\r
-{\r
-       strcpy(buffer, g_FuncTable.m_pfnGetGamePath());\r
-       char* p = strrchr(buffer, '/');\r
-       *++p = '\0';\r
-       strcat(buffer, filename);\r
-       buffer = UnixToDosPath(buffer);\r
-       return buffer;\r
-}*/\r
-\r
-#if defined (__linux__) || defined (__APPLE__)\r
-// the bCreateConsole parameter is ignored on linux ..\r
-bool Q_Exec( const char *pCmd, bool bCreateConsole )\r
-{\r
-       switch (fork())\r
-    {\r
-       case -1:\r
-      return false;\r
-//      Error ("CreateProcess failed");\r
-      break;\r
-    case 0:\r
-#ifdef _DEBUG\r
-                 printf("Running system...\n");\r
-                       printf("Command: %s\n", pCmd);\r
-#endif\r
-                       // NOTE: we could use that to detect when a step finishes. But then it\r
-                       // would not work for remote compiling stuff.\r
-//      execlp (pCmd, pCmd, NULL);\r
-                       system( pCmd );\r
-      printf ("system() returned");\r
-      _exit (0);\r
-      break;\r
-    }\r
-    return true;\r
-}\r
-#endif\r
-\r
-#ifdef _WIN32\r
-bool Q_Exec( const char *pCmd, bool bCreateConsole )\r
-{\r
-       // G_DeWan: Don't know if this is needed for linux version\r
-\r
-       PROCESS_INFORMATION pi;\r
-       STARTUPINFO si = {0};            // Initialize all members to zero\r
-       si.cb = sizeof(STARTUPINFO);     // Set byte count\r
-  DWORD dwCreationFlags;\r
-\r
-  if (bCreateConsole)\r
-    dwCreationFlags = CREATE_NEW_CONSOLE | NORMAL_PRIORITY_CLASS;\r
-  else\r
-    dwCreationFlags = DETACHED_PROCESS | NORMAL_PRIORITY_CLASS;\r
-\r
-       for(; *pCmd == ' '; pCmd++);\r
-\r
-       if(!CreateProcess(NULL, (char *)pCmd, NULL, NULL, FALSE, dwCreationFlags, NULL, NULL, &si, &pi))\r
-               return false;\r
-\r
-  return true;\r
-}\r
-#endif\r
-\r
-void StartBSP()\r
-{\r
-       char exename[256];\r
-       GetFilename(exename, "q3map");\r
-       UnixToDosPath(exename); // do we want this done in linux version?\r
-\r
-       char mapname[256];  \r
-  const char *pn = g_FuncTable.m_pfnReadProjectKey("mapspath");\r
-  \r
-       strcpy( mapname, pn );\r
-       strcat( mapname, "/ac_prt.map" );\r
-       UnixToDosPath(mapname);\r
-\r
-       char command[1024];\r
-       sprintf(command, "%s -nowater -fulldetail %s", exename, mapname);\r
-\r
-       Q_Exec( command, TRUE );\r
-}\r
-\r
-void BuildMiniPrt(list<Str>* exclusionList)\r
-{\r
-       // yes, we could just use -fulldetail option, but, as SPOG said\r
-       // it'd be faster without all the hint, donotenter etc textures and\r
-       // doors, etc\r
-\r
-       DEntity world;\r
-       \r
-       char buffer[128];\r
-  const char *pn = g_FuncTable.m_pfnReadProjectKey("mapspath");\r
-\r
-       strcpy( buffer, pn );\r
-       strcat( buffer, "/ac_prt.map" );\r
-       FILE* pFile = fopen(buffer, "w");\r
-\r
-       // ahem, thx rr2\r
-       if(!pFile)\r
-               return;\r
-\r
-       int count = g_FuncTable.m_pfnGetEntityCount();\r
-       for(int i = 0; i < count; i++)\r
-       {\r
-               entity_t* ent = (entity_t*)g_FuncTable.m_pfnGetEntityHandle(i);\r
-\r
-               epair_t* epl = *g_EntityTable.m_pfnGetEntityKeyValList(ent);\r
-\r
-               epair_t* ep = epl;\r
-               while(ep)\r
-               {\r
-                       if(!strcmp(ep->key, "classname"))\r
-                       {\r
-                               if(!strcmp(ep->value, "worldspawn"))\r
-                               {\r
-                                       world.LoadFromEntity(i, FALSE);\r
-                                       world.RemoveNonCheckBrushes(exclusionList, TRUE);\r
-                                       world.SaveToFile(pFile);\r
-                               }\r
-                               else if(strstr(ep->value, "info_"))\r
-                               {\r
-                                       world.ClearBrushes();\r
-                                       world.ClearEPairs();\r
-                                       world.LoadEPairList(epl);\r
-                                       world.SaveToFile(pFile);\r
-                               }\r
-                               break;\r
-                       }\r
-\r
-                       ep = ep->next;\r
-               }\r
-       }\r
-\r
-       fclose(pFile);\r
-\r
-       StartBSP();\r
-}\r
-\r
-entity_s* FindEntityFromTargetname(const char* targetname, int* entNum)\r
-{\r
-       DEntity world;\r
-\r
-       int count = g_FuncTable.m_pfnGetEntityCount();\r
-       for(int i = 0; i < count; i++)\r
-       {\r
-               world.ClearEPairs();\r
-\r
-               entity_s* ent = (entity_s*)g_FuncTable.m_pfnGetEntityHandle(i);\r
-\r
-               world.LoadEPairList(*g_EntityTable.m_pfnGetEntityKeyValList(ent));\r
-\r
-               DEPair* tn = world.FindEPairByKey("targetname");\r
-               if(tn)\r
-               {\r
-                       if(!stricmp(tn->value, targetname)) {\r
-                               if(entNum) {\r
-                                       *entNum = i;\r
-                               }\r
-                               return ent;\r
-                       }\r
-               }\r
-       }\r
-       return NULL;\r
-}\r
-\r
-void FillDefaultTexture(_QERFaceData* faceData, vec3_t va, vec3_t vb, vec3_t vc, const char* texture)\r
-{\r
-       faceData->m_bBPrimit = FALSE;\r
-       faceData->m_fRotate = 0;\r
-       faceData->m_fScale[0] = 0.5;\r
-       faceData->m_fScale[1] = 0.5;\r
-       faceData->m_fShift[0] = 0;\r
-       faceData->m_fShift[1] = 0;\r
-       faceData->m_nContents = 0;\r
-       faceData->m_nFlags = 0;\r
-       faceData->m_nValue = 0;\r
-       if(*texture)\r
-               strcpy(faceData->m_TextureName, texture);\r
-       else\r
-               strcpy(faceData->m_TextureName, "textures/common/caulk");\r
-       VectorCopy(va, faceData->m_v1);\r
-       VectorCopy(vb, faceData->m_v2);\r
-       VectorCopy(vc, faceData->m_v3);\r
-}\r
-\r
-float Determinant3x3(float a1, float a2, float a3,\r
-                                        float b1, float b2, float b3,\r
-                                        float c1, float c2, float c3)\r
-{\r
-       return a1*(b2*c3-b3*c2) - a2*(b1*c3-b3*c1) + a3*(b1*c2-b2*c1);\r
-}\r
-\r
-bool GetEntityCentre(const char* entity, vec3_t centre)\r
-{\r
-       entity_s* ent = FindEntityFromTargetname(entity, NULL);\r
-       if(!ent)\r
-               return FALSE;\r
-\r
-       int cnt = g_FuncTable.m_pfnAllocateEntityBrushHandles(ent);\r
-       if(cnt == 0)\r
-       {\r
-               g_FuncTable.m_pfnReleaseEntityBrushHandles();\r
-               return FALSE;\r
-       }\r
-\r
-       brush_t* brush = (brush_t*)g_FuncTable.m_pfnGetEntityBrushHandle(0);\r
-       DBrush cBrush;\r
-       cBrush.LoadFromBrush_t(brush, FALSE);\r
-\r
-       vec3_t min, max;\r
-       cBrush.GetBounds(min, max);\r
-\r
-       VectorAdd(min, max, centre);\r
-       VectorScale(centre, 0.5f, centre);\r
-\r
-       g_FuncTable.m_pfnReleaseEntityBrushHandles();\r
-       return TRUE;\r
-}\r
-\r
-vec_t Min(vec_t a, vec_t b)\r
-{\r
-       if(a < b)\r
-               return a;\r
-       return b;\r
-}\r
-\r
-void MakeNormal( vec_t* va, vec_t* vb, vec_t* vc, vec_t* out ) {\r
-       vec3_t v1, v2;\r
-       VectorSubtract(va, vb, v1);\r
-       VectorSubtract(vc, vb, v2);\r
-       CrossProduct(v1, v2, out);\r
-}\r
+/*
+   BobToolz plugin for GtkRadiant
+   Copyright (C) 2001 Gordon Biggans
+
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   This library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, write to the Free Software
+   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include "misc.h"
+
+#include <list>
+#include "str.h"
+
+#include "DPoint.h"
+#include "DPlane.h"
+#include "DBrush.h"
+#include "DEPair.h"
+#include "DPatch.h"
+#include "DEntity.h"
+
+#include "funchandlers.h"
+
+#if defined ( POSIX )
+#include <sys/types.h>
+#include <unistd.h>
+#endif
+
+#include "iundo.h"
+#include "ientity.h"
+#include "iscenegraph.h"
+#include "qerplugin.h"
+
+#include <vector>
+#include <list>
+#include <map>
+#include <algorithm>
+
+#include "scenelib.h"
+
+/*==========================
+        Global Vars
+   ==========================*/
+
+//HANDLE bsp_process;
+char g_CurrentTexture[256] = "";
+
+//=============================================================
+//=============================================================
+
+void ReadCurrentTexture(){
+       const char* textureName = GlobalRadiant().TextureBrowser_getSelectedShader();
+       strcpy( g_CurrentTexture, textureName );
+}
+
+const char*  GetCurrentTexture(){
+       ReadCurrentTexture();
+       return g_CurrentTexture;
+}
+
+void MoveBlock( int dir, vec3_t min, vec3_t max, float dist ){
+       switch ( dir )
+       {
+       case MOVE_EAST:
+       {
+               min[0] += dist;
+               max[0] += dist;
+               break;
+       }
+       case MOVE_WEST:
+       {
+               min[0] -= dist;
+               max[0] -= dist;
+               break;
+       }
+       case MOVE_NORTH:
+       {
+               min[1] += dist;
+               max[1] += dist;
+               break;
+       }
+       case MOVE_SOUTH:
+       {
+               min[1] -= dist;
+               max[1] -= dist;
+               break;
+       }
+       }
+}
+
+void SetInitialStairPos( int dir, vec3_t min, vec3_t max, float width ){
+       switch ( dir )
+       {
+       case MOVE_EAST:
+       {
+               max[0] = min[0] + width;
+               break;
+       }
+       case MOVE_WEST:
+       {
+               min[0] = max[0] - width;
+               break;
+       }
+       case MOVE_NORTH:
+       {
+               max[1] = min[1] + width;
+               break;
+       }
+       case MOVE_SOUTH:
+       {
+               min[1] = max[1] - width;
+               break;
+       }
+       }
+}
+
+char* TranslateString( char *buf ){
+       static char buf2[32768];
+
+       std::size_t l = strlen( buf );
+       char* out = buf2;
+       for ( std::size_t i = 0 ; i < l ; i++ )
+       {
+               if ( buf[i] == '\n' ) {
+                       *out++ = '\r';
+                       *out++ = '\n';
+               }
+               else{
+                       *out++ = buf[i];
+               }
+       }
+       *out++ = 0;
+
+       return buf2;
+}
+
+
+char* UnixToDosPath( char* path ){
+#ifndef WIN32
+       return path;
+#else
+       for ( char* p = path; *p; p++ )
+       {
+               if ( *p == '/' ) {
+                       *p = '\\';
+               }
+       }
+       return path;
+#endif
+}
+
+const char* ExtractFilename( const char* path ){
+       const char* p = strrchr( path, '/' );
+       if ( !p ) {
+               p = strrchr( path, '\\' );
+
+               if ( !p ) {
+                       return path;
+               }
+       }
+       return ++p;
+}
+
+extern char* PLUGIN_NAME;
+/*char* GetGameFilename(char* buffer, const char* filename)
+   {
+    strcpy(buffer, g_FuncTable.m_pfnGetGamePath());
+    char* p = strrchr(buffer, '/');
+   *++p = '\0';
+    strcat(buffer, filename);
+    buffer = UnixToDosPath(buffer);
+    return buffer;
+   }*/
+
+#if defined ( POSIX )
+// the bCreateConsole parameter is ignored on linux ..
+bool Q_Exec( const char *pCmd, bool bCreateConsole ){
+       switch ( fork() )
+       {
+       case -1:
+               return false;
+//      Error ("CreateProcess failed");
+               break;
+       case 0:
+#ifdef _DEBUG
+               printf( "Running system...\n" );
+               printf( "Command: %s\n", pCmd );
+#endif
+               // NOTE: we could use that to detect when a step finishes. But then it
+               // would not work for remote compiling stuff.
+//      execlp (pCmd, pCmd, NULL);
+               system( pCmd );
+               printf( "system() returned" );
+               _exit( 0 );
+               break;
+       }
+       return true;
+}
+#endif
+
+#ifdef WIN32
+
+#include <windows.h>
+
+bool Q_Exec( const char *pCmd, bool bCreateConsole ){
+       // G_DeWan: Don't know if this is needed for linux version
+
+       PROCESS_INFORMATION pi;
+       STARTUPINFO si = {0};            // Initialize all members to zero
+       si.cb = sizeof( STARTUPINFO );     // Set byte count
+       DWORD dwCreationFlags;
+
+       if ( bCreateConsole ) {
+               dwCreationFlags = CREATE_NEW_CONSOLE | NORMAL_PRIORITY_CLASS;
+       }
+       else{
+               dwCreationFlags = DETACHED_PROCESS | NORMAL_PRIORITY_CLASS;
+       }
+
+       for (; *pCmd == ' '; pCmd++ ) ;
+
+       if ( !CreateProcess( NULL, (char *)pCmd, NULL, NULL, false, dwCreationFlags, NULL, NULL, &si, &pi ) ) {
+               return false;
+       }
+
+       return true;
+}
+#endif
+
+void StartBSP(){
+       char exename[256];
+       GetFilename( exename, "q3map" );
+       UnixToDosPath( exename ); // do we want this done in linux version?
+
+       char mapname[256];
+       const char *pn = GlobalRadiant().getMapsPath();
+
+       strcpy( mapname, pn );
+       strcat( mapname, "/ac_prt.map" );
+       UnixToDosPath( mapname );
+
+       char command[1024];
+       sprintf( command, "%s -nowater -fulldetail %s", exename, mapname );
+
+       Q_Exec( command, true );
+}
+
+class EntityWriteMiniPrt
+{
+mutable DEntity world;
+FILE* pFile;
+std::list<Str>* exclusionList;
+public:
+EntityWriteMiniPrt( FILE* pFile, std::list<Str>* exclusionList )
+       : pFile( pFile ), exclusionList( exclusionList ){
+}
+void operator()( scene::Instance& instance ) const {
+       const char* classname = Node_getEntity( instance.path().top() )->getKeyValue( "classname" );
+
+       if ( !strcmp( classname, "worldspawn" ) ) {
+               world.LoadFromEntity( instance.path().top(), false );
+               world.RemoveNonCheckBrushes( exclusionList, true );
+               world.SaveToFile( pFile );
+       }
+       else if ( strstr( classname, "info_" ) ) {
+               world.ClearBrushes();
+               world.ClearEPairs();
+               world.LoadEPairList( Node_getEntity( instance.path().top() ) );
+               world.SaveToFile( pFile );
+       }
+}
+};
+
+void BuildMiniPrt( std::list<Str>* exclusionList ){
+       // yes, we could just use -fulldetail option, but, as SPOG said
+       // it'd be faster without all the hint, donotenter etc textures and
+       // doors, etc
+
+
+
+       char buffer[128];
+       const char *pn = GlobalRadiant().getMapsPath();
+
+       strcpy( buffer, pn );
+       strcat( buffer, "/ac_prt.map" );
+       FILE* pFile = fopen( buffer, "w" );
+
+       // ahem, thx rr2
+       if ( !pFile ) {
+               return;
+       }
+
+       Scene_forEachEntity( EntityWriteMiniPrt( pFile, exclusionList ) );
+
+       fclose( pFile );
+
+       StartBSP();
+}
+
+class EntityFindByTargetName
+{
+const char* targetname;
+public:
+mutable const scene::Path* result;
+EntityFindByTargetName( const char* targetname )
+       : targetname( targetname ), result( 0 ){
+}
+void operator()( scene::Instance& instance ) const {
+       if ( result == 0 ) {
+               const char* value = Node_getEntity( instance.path().top() )->getKeyValue( "targetname" );
+
+               if ( !strcmp( value, targetname ) ) {
+                       result = &instance.path();
+               }
+       }
+}
+};
+
+const scene::Path* FindEntityFromTargetname( const char* targetname ){
+       return Scene_forEachEntity( EntityFindByTargetName( targetname ) ).result;
+}
+
+void FillDefaultTexture( _QERFaceData* faceData, vec3_t va, vec3_t vb, vec3_t vc, const char* texture ){
+       faceData->m_texdef.rotate = 0;
+       faceData->m_texdef.scale[0] = 0.5;
+       faceData->m_texdef.scale[1] = 0.5;
+       faceData->m_texdef.shift[0] = 0;
+       faceData->m_texdef.shift[1] = 0;
+       faceData->contents = 0;
+       faceData->flags = 0;
+       faceData->value = 0;
+       if ( *texture ) {
+               faceData->m_shader = texture;
+       }
+       else{
+               faceData->m_shader = "textures/common/caulk";
+       }
+       VectorCopy( va, faceData->m_p0 );
+       VectorCopy( vb, faceData->m_p1 );
+       VectorCopy( vc, faceData->m_p2 );
+}
+
+float Determinant3x3( float a1, float a2, float a3,
+                                         float b1, float b2, float b3,
+                                         float c1, float c2, float c3 ){
+       return a1 * ( b2 * c3 - b3 * c2 ) - a2 * ( b1 * c3 - b3 * c1 ) + a3 * ( b1 * c2 - b2 * c1 );
+}
+
+bool GetEntityCentre( const char* entity, vec3_t centre ){
+       const scene::Path* ent = FindEntityFromTargetname( entity );
+       if ( !ent ) {
+               return false;
+       }
+
+       scene::Instance& instance = *GlobalSceneGraph().find( *ent );
+       VectorCopy( instance.worldAABB().origin, centre );
+
+       return true;
+}
+
+vec_t Min( vec_t a, vec_t b ){
+       if ( a < b ) {
+               return a;
+       }
+       return b;
+}
+
+void MakeNormal( const vec_t* va, const vec_t* vb, const vec_t* vc, vec_t* out ) {
+       vec3_t v1, v2;
+       VectorSubtract( va, vb, v1 );
+       VectorSubtract( vc, vb, v2 );
+       CrossProduct( v1, v2, out );
+}
+
+char* GetFilename( char* buffer, const char* filename ) {
+       strcpy( buffer, GlobalRadiant().getAppPath() );
+       strcat( buffer, "plugins/" );
+       strcat( buffer, filename );
+       return buffer;
+}