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+/*
+===========================================================================
+Copyright (C) 1999-2005 Id Software, Inc.
+
+This file is part of Quake III Arena source code.
+
+Quake III Arena source code is free software; you can redistribute it
+and/or modify it under the terms of the GNU General Public License as
+published by the Free Software Foundation; either version 2 of the License,
+or (at your option) any later version.
+
+Quake III Arena source code is distributed in the hope that it will be
+useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with Quake III Arena source code; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+===========================================================================
+*/
+
+/*****************************************************************************
+ * name: be_aas_main.c
+ *
+ * desc: AAS
+ *
+ * $Archive: /MissionPack/code/botlib/be_aas_main.c $
+ *
+ *****************************************************************************/
+
+#include "../qcommon/q_shared.h"
+#include "l_memory.h"
+#include "l_libvar.h"
+#include "l_utils.h"
+#include "l_script.h"
+#include "l_precomp.h"
+#include "l_struct.h"
+#include "l_log.h"
+#include "aasfile.h"
+#include "botlib.h"
+#include "be_aas.h"
+#include "be_aas_funcs.h"
+#include "be_interface.h"
+#include "be_aas_def.h"
+
+aas_t aasworld;
+
+libvar_t *saveroutingcache;
+
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+void QDECL AAS_Error(char *fmt, ...)
+{
+ char str[1024];
+ va_list arglist;
+
+ va_start(arglist, fmt);
+ Q_vsnprintf(str, sizeof(str), fmt, arglist);
+ va_end(arglist);
+ botimport.Print(PRT_FATAL, "%s", str);
+} //end of the function AAS_Error
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+char *AAS_StringFromIndex(char *indexname, char *stringindex[], int numindexes, int index)
+{
+ if (!aasworld.indexessetup)
+ {
+ botimport.Print(PRT_ERROR, "%s: index %d not setup\n", indexname, index);
+ return "";
+ } //end if
+ if (index < 0 || index >= numindexes)
+ {
+ botimport.Print(PRT_ERROR, "%s: index %d out of range\n", indexname, index);
+ return "";
+ } //end if
+ if (!stringindex[index])
+ {
+ if (index)
+ {
+ botimport.Print(PRT_ERROR, "%s: reference to unused index %d\n", indexname, index);
+ } //end if
+ return "";
+ } //end if
+ return stringindex[index];
+} //end of the function AAS_StringFromIndex
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_IndexFromString(char *indexname, char *stringindex[], int numindexes, char *string)
+{
+ int i;
+ if (!aasworld.indexessetup)
+ {
+ botimport.Print(PRT_ERROR, "%s: index not setup \"%s\"\n", indexname, string);
+ return 0;
+ } //end if
+ for (i = 0; i < numindexes; i++)
+ {
+ if (!stringindex[i]) continue;
+ if (!Q_stricmp(stringindex[i], string)) return i;
+ } //end for
+ return 0;
+} //end of the function AAS_IndexFromString
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+char *AAS_ModelFromIndex(int index)
+{
+ return AAS_StringFromIndex("ModelFromIndex", &aasworld.configstrings[CS_MODELS], MAX_MODELS, index);
+} //end of the function AAS_ModelFromIndex
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_IndexFromModel(char *modelname)
+{
+ return AAS_IndexFromString("IndexFromModel", &aasworld.configstrings[CS_MODELS], MAX_MODELS, modelname);
+} //end of the function AAS_IndexFromModel
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+void AAS_UpdateStringIndexes(int numconfigstrings, char *configstrings[])
+{
+ int i;
+ //set string pointers and copy the strings
+ for (i = 0; i < numconfigstrings; i++)
+ {
+ if (configstrings[i])
+ {
+ //if (aasworld.configstrings[i]) FreeMemory(aasworld.configstrings[i]);
+ aasworld.configstrings[i] = (char *) GetMemory(strlen(configstrings[i]) + 1);
+ strcpy(aasworld.configstrings[i], configstrings[i]);
+ } //end if
+ } //end for
+ aasworld.indexessetup = qtrue;
+} //end of the function AAS_UpdateStringIndexes
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_Loaded(void)
+{
+ return aasworld.loaded;
+} //end of the function AAS_Loaded
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_Initialized(void)
+{
+ return aasworld.initialized;
+} //end of the function AAS_Initialized
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+void AAS_SetInitialized(void)
+{
+ aasworld.initialized = qtrue;
+ botimport.Print(PRT_MESSAGE, "AAS initialized.\n");
+#ifdef DEBUG
+ //create all the routing cache
+ //AAS_CreateAllRoutingCache();
+ //
+ //AAS_RoutingInfo();
+#endif
+} //end of the function AAS_SetInitialized
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+void AAS_ContinueInit(float time)
+{
+ //if no AAS file loaded
+ if (!aasworld.loaded) return;
+ //if AAS is already initialized
+ if (aasworld.initialized) return;
+ //calculate reachability, if not finished return
+ if (AAS_ContinueInitReachability(time)) return;
+ //initialize clustering for the new map
+ AAS_InitClustering();
+ //if reachability has been calculated and an AAS file should be written
+ //or there is a forced data optimization
+ if (aasworld.savefile || ((int)LibVarGetValue("forcewrite")))
+ {
+ //optimize the AAS data
+ if ((int)LibVarValue("aasoptimize", "0")) AAS_Optimize();
+ //save the AAS file
+ if (AAS_WriteAASFile(aasworld.filename))
+ {
+ botimport.Print(PRT_MESSAGE, "%s written succesfully\n", aasworld.filename);
+ } //end if
+ else
+ {
+ botimport.Print(PRT_ERROR, "couldn't write %s\n", aasworld.filename);
+ } //end else
+ } //end if
+ //initialize the routing
+ AAS_InitRouting();
+ //at this point AAS is initialized
+ AAS_SetInitialized();
+} //end of the function AAS_ContinueInit
+//===========================================================================
+// called at the start of every frame
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_StartFrame(float time)
+{
+ aasworld.time = time;
+ //unlink all entities that were not updated last frame
+ AAS_UnlinkInvalidEntities();
+ //invalidate the entities
+ AAS_InvalidateEntities();
+ //initialize AAS
+ AAS_ContinueInit(time);
+ //
+ aasworld.frameroutingupdates = 0;
+ //
+ if (botDeveloper)
+ {
+ if (LibVarGetValue("showcacheupdates"))
+ {
+ AAS_RoutingInfo();
+ LibVarSet("showcacheupdates", "0");
+ } //end if
+ if (LibVarGetValue("showmemoryusage"))
+ {
+ PrintUsedMemorySize();
+ LibVarSet("showmemoryusage", "0");
+ } //end if
+ if (LibVarGetValue("memorydump"))
+ {
+ PrintMemoryLabels();
+ LibVarSet("memorydump", "0");
+ } //end if
+ } //end if
+ //
+ if (saveroutingcache->value)
+ {
+ AAS_WriteRouteCache();
+ LibVarSet("saveroutingcache", "0");
+ } //end if
+ //
+ aasworld.numframes++;
+ return BLERR_NOERROR;
+} //end of the function AAS_StartFrame
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+float AAS_Time(void)
+{
+ return aasworld.time;
+} //end of the function AAS_Time
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+void AAS_ProjectPointOntoVector( vec3_t point, vec3_t vStart, vec3_t vEnd, vec3_t vProj )
+{
+ vec3_t pVec, vec;
+
+ VectorSubtract( point, vStart, pVec );
+ VectorSubtract( vEnd, vStart, vec );
+ VectorNormalize( vec );
+ // project onto the directional vector for this segment
+ VectorMA( vStart, DotProduct( pVec, vec ), vec, vProj );
+} //end of the function AAS_ProjectPointOntoVector
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_LoadFiles(const char *mapname)
+{
+ int errnum;
+ char aasfile[MAX_PATH];
+// char bspfile[MAX_PATH];
+
+ strcpy(aasworld.mapname, mapname);
+ //NOTE: first reset the entity links into the AAS areas and BSP leaves
+ // the AAS link heap and BSP link heap are reset after respectively the
+ // AAS file and BSP file are loaded
+ AAS_ResetEntityLinks();
+ // load bsp info
+ AAS_LoadBSPFile();
+
+ //load the aas file
+ Com_sprintf(aasfile, MAX_PATH, "maps/%s.aas", mapname);
+ errnum = AAS_LoadAASFile(aasfile);
+ if (errnum != BLERR_NOERROR)
+ return errnum;
+
+ botimport.Print(PRT_MESSAGE, "loaded %s\n", aasfile);
+ strncpy(aasworld.filename, aasfile, MAX_PATH);
+ return BLERR_NOERROR;
+} //end of the function AAS_LoadFiles
+//===========================================================================
+// called everytime a map changes
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_LoadMap(const char *mapname)
+{
+ int errnum;
+
+ //if no mapname is provided then the string indexes are updated
+ if (!mapname)
+ {
+ return 0;
+ } //end if
+ //
+ aasworld.initialized = qfalse;
+ //NOTE: free the routing caches before loading a new map because
+ // to free the caches the old number of areas, number of clusters
+ // and number of areas in a clusters must be available
+ AAS_FreeRoutingCaches();
+ //load the map
+ errnum = AAS_LoadFiles(mapname);
+ if (errnum != BLERR_NOERROR)
+ {
+ aasworld.loaded = qfalse;
+ return errnum;
+ } //end if
+ //
+ AAS_InitSettings();
+ //initialize the AAS link heap for the new map
+ AAS_InitAASLinkHeap();
+ //initialize the AAS linked entities for the new map
+ AAS_InitAASLinkedEntities();
+ //initialize reachability for the new map
+ AAS_InitReachability();
+ //initialize the alternative routing
+ AAS_InitAlternativeRouting();
+ //everything went ok
+ return 0;
+} //end of the function AAS_LoadMap
+//===========================================================================
+// called when the library is first loaded
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+int AAS_Setup(void)
+{
+ aasworld.maxclients = (int) LibVarValue("maxclients", "128");
+ aasworld.maxentities = (int) LibVarValue("maxentities", "1024");
+ // as soon as it's set to 1 the routing cache will be saved
+ saveroutingcache = LibVar("saveroutingcache", "0");
+ //allocate memory for the entities
+ if (aasworld.entities) FreeMemory(aasworld.entities);
+ aasworld.entities = (aas_entity_t *) GetClearedHunkMemory(aasworld.maxentities * sizeof(aas_entity_t));
+ //invalidate all the entities
+ AAS_InvalidateEntities();
+ //force some recalculations
+ //LibVarSet("forceclustering", "1"); //force clustering calculation
+ //LibVarSet("forcereachability", "1"); //force reachability calculation
+ aasworld.numframes = 0;
+ return BLERR_NOERROR;
+} //end of the function AAS_Setup
+//===========================================================================
+//
+// Parameter: -
+// Returns: -
+// Changes Globals: -
+//===========================================================================
+void AAS_Shutdown(void)
+{
+ AAS_ShutdownAlternativeRouting();
+ //
+ AAS_DumpBSPData();
+ //free routing caches
+ AAS_FreeRoutingCaches();
+ //free aas link heap
+ AAS_FreeAASLinkHeap();
+ //free aas linked entities
+ AAS_FreeAASLinkedEntities();
+ //free the aas data
+ AAS_DumpAASData();
+ //free the entities
+ if (aasworld.entities) FreeMemory(aasworld.entities);
+ //clear the aasworld structure
+ Com_Memset(&aasworld, 0, sizeof(aas_t));
+ //aas has not been initialized
+ aasworld.initialized = qfalse;
+ //NOTE: as soon as a new .bsp file is loaded the .bsp file memory is
+ // freed an reallocated, so there's no need to free that memory here
+ //print shutdown
+ botimport.Print(PRT_MESSAGE, "AAS shutdown.\n");
+} //end of the function AAS_Shutdown