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Diffstat (limited to 'code/botlib/be_aas_route.c')
| -rw-r--r-- | code/botlib/be_aas_route.c | 2210 |
1 files changed, 2210 insertions, 0 deletions
diff --git a/code/botlib/be_aas_route.c b/code/botlib/be_aas_route.c new file mode 100644 index 0000000..0d240dc --- /dev/null +++ b/code/botlib/be_aas_route.c @@ -0,0 +1,2210 @@ +/* +=========================================================================== +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_route.c + * + * desc: AAS + * + * $Archive: /MissionPack/code/botlib/be_aas_route.c $ + * + *****************************************************************************/ + +#include "../qcommon/q_shared.h" +#include "l_utils.h" +#include "l_memory.h" +#include "l_log.h" +#include "l_crc.h" +#include "l_libvar.h" +#include "l_script.h" +#include "l_precomp.h" +#include "l_struct.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" + +#define ROUTING_DEBUG + +//travel time in hundreths of a second = distance * 100 / speed +#define DISTANCEFACTOR_CROUCH 1.3f //crouch speed = 100 +#define DISTANCEFACTOR_SWIM 1 //should be 0.66, swim speed = 150 +#define DISTANCEFACTOR_WALK 0.33f //walk speed = 300 + +//cache refresh time +#define CACHE_REFRESHTIME 15.0f //15 seconds refresh time + +//maximum number of routing updates each frame +#define MAX_FRAMEROUTINGUPDATES 10 + + +/* + + area routing cache: + stores the distances within one cluster to a specific goal area + this goal area is in this same cluster and could be a cluster portal + for every cluster there's a list with routing cache for every area + in that cluster (including the portals of that cluster) + area cache stores aasworld.clusters[?].numreachabilityareas travel times + + portal routing cache: + stores the distances of all portals to a specific goal area + this goal area could be in any cluster and could also be a cluster portal + for every area (aasworld.numareas) the portal cache stores + aasworld.numportals travel times + +*/ + +#ifdef ROUTING_DEBUG +int numareacacheupdates; +int numportalcacheupdates; +#endif //ROUTING_DEBUG + +int routingcachesize; +int max_routingcachesize; + +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +#ifdef ROUTING_DEBUG +void AAS_RoutingInfo(void) +{ + botimport.Print(PRT_MESSAGE, "%d area cache updates\n", numareacacheupdates); + botimport.Print(PRT_MESSAGE, "%d portal cache updates\n", numportalcacheupdates); + botimport.Print(PRT_MESSAGE, "%d bytes routing cache\n", routingcachesize); +} //end of the function AAS_RoutingInfo +#endif //ROUTING_DEBUG +//=========================================================================== +// returns the number of the area in the cluster +// assumes the given area is in the given cluster or a portal of the cluster +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +ID_INLINE int AAS_ClusterAreaNum(int cluster, int areanum) +{ + int side, areacluster; + + areacluster = aasworld.areasettings[areanum].cluster; + if (areacluster > 0) return aasworld.areasettings[areanum].clusterareanum; + else + { +/*#ifdef ROUTING_DEBUG + if (aasworld.portals[-areacluster].frontcluster != cluster && + aasworld.portals[-areacluster].backcluster != cluster) + { + botimport.Print(PRT_ERROR, "portal %d: does not belong to cluster %d\n" + , -areacluster, cluster); + } //end if +#endif //ROUTING_DEBUG*/ + side = aasworld.portals[-areacluster].frontcluster != cluster; + return aasworld.portals[-areacluster].clusterareanum[side]; + } //end else +} //end of the function AAS_ClusterAreaNum +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitTravelFlagFromType(void) +{ + int i; + + for (i = 0; i < MAX_TRAVELTYPES; i++) + { + aasworld.travelflagfortype[i] = TFL_INVALID; + } //end for + aasworld.travelflagfortype[TRAVEL_INVALID] = TFL_INVALID; + aasworld.travelflagfortype[TRAVEL_WALK] = TFL_WALK; + aasworld.travelflagfortype[TRAVEL_CROUCH] = TFL_CROUCH; + aasworld.travelflagfortype[TRAVEL_BARRIERJUMP] = TFL_BARRIERJUMP; + aasworld.travelflagfortype[TRAVEL_JUMP] = TFL_JUMP; + aasworld.travelflagfortype[TRAVEL_LADDER] = TFL_LADDER; + aasworld.travelflagfortype[TRAVEL_WALKOFFLEDGE] = TFL_WALKOFFLEDGE; + aasworld.travelflagfortype[TRAVEL_SWIM] = TFL_SWIM; + aasworld.travelflagfortype[TRAVEL_WATERJUMP] = TFL_WATERJUMP; + aasworld.travelflagfortype[TRAVEL_TELEPORT] = TFL_TELEPORT; + aasworld.travelflagfortype[TRAVEL_ELEVATOR] = TFL_ELEVATOR; + aasworld.travelflagfortype[TRAVEL_ROCKETJUMP] = TFL_ROCKETJUMP; + aasworld.travelflagfortype[TRAVEL_BFGJUMP] = TFL_BFGJUMP; + aasworld.travelflagfortype[TRAVEL_GRAPPLEHOOK] = TFL_GRAPPLEHOOK; + aasworld.travelflagfortype[TRAVEL_DOUBLEJUMP] = TFL_DOUBLEJUMP; + aasworld.travelflagfortype[TRAVEL_RAMPJUMP] = TFL_RAMPJUMP; + aasworld.travelflagfortype[TRAVEL_STRAFEJUMP] = TFL_STRAFEJUMP; + aasworld.travelflagfortype[TRAVEL_JUMPPAD] = TFL_JUMPPAD; + aasworld.travelflagfortype[TRAVEL_FUNCBOB] = TFL_FUNCBOB; +} //end of the function AAS_InitTravelFlagFromType +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +ID_INLINE int AAS_TravelFlagForType_inline(int traveltype) +{ + int tfl; + + tfl = 0; + if (tfl & TRAVELFLAG_NOTTEAM1) + tfl |= TFL_NOTTEAM1; + if (tfl & TRAVELFLAG_NOTTEAM2) + tfl |= TFL_NOTTEAM2; + traveltype &= TRAVELTYPE_MASK; + if (traveltype < 0 || traveltype >= MAX_TRAVELTYPES) + return TFL_INVALID; + tfl |= aasworld.travelflagfortype[traveltype]; + return tfl; +} //end of the function AAS_TravelFlagForType_inline +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_TravelFlagForType(int traveltype) +{ + return AAS_TravelFlagForType_inline(traveltype); +} //end of the function AAS_TravelFlagForType_inline +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_UnlinkCache(aas_routingcache_t *cache) +{ + if (cache->time_next) cache->time_next->time_prev = cache->time_prev; + else aasworld.newestcache = cache->time_prev; + if (cache->time_prev) cache->time_prev->time_next = cache->time_next; + else aasworld.oldestcache = cache->time_next; + cache->time_next = NULL; + cache->time_prev = NULL; +} //end of the function AAS_UnlinkCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_LinkCache(aas_routingcache_t *cache) +{ + if (aasworld.newestcache) + { + aasworld.newestcache->time_next = cache; + cache->time_prev = aasworld.newestcache; + } //end if + else + { + aasworld.oldestcache = cache; + cache->time_prev = NULL; + } //end else + cache->time_next = NULL; + aasworld.newestcache = cache; +} //end of the function AAS_LinkCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeRoutingCache(aas_routingcache_t *cache) +{ + AAS_UnlinkCache(cache); + routingcachesize -= cache->size; + FreeMemory(cache); +} //end of the function AAS_FreeRoutingCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_RemoveRoutingCacheInCluster( int clusternum ) +{ + int i; + aas_routingcache_t *cache, *nextcache; + aas_cluster_t *cluster; + + if (!aasworld.clusterareacache) + return; + cluster = &aasworld.clusters[clusternum]; + for (i = 0; i < cluster->numareas; i++) + { + for (cache = aasworld.clusterareacache[clusternum][i]; cache; cache = nextcache) + { + nextcache = cache->next; + AAS_FreeRoutingCache(cache); + } //end for + aasworld.clusterareacache[clusternum][i] = NULL; + } //end for +} //end of the function AAS_RemoveRoutingCacheInCluster +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_RemoveRoutingCacheUsingArea( int areanum ) +{ + int i, clusternum; + aas_routingcache_t *cache, *nextcache; + + clusternum = aasworld.areasettings[areanum].cluster; + if (clusternum > 0) + { + //remove all the cache in the cluster the area is in + AAS_RemoveRoutingCacheInCluster( clusternum ); + } //end if + else + { + // if this is a portal remove all cache in both the front and back cluster + AAS_RemoveRoutingCacheInCluster( aasworld.portals[-clusternum].frontcluster ); + AAS_RemoveRoutingCacheInCluster( aasworld.portals[-clusternum].backcluster ); + } //end else + // remove all portal cache + for (i = 0; i < aasworld.numareas; i++) + { + //refresh portal cache + for (cache = aasworld.portalcache[i]; cache; cache = nextcache) + { + nextcache = cache->next; + AAS_FreeRoutingCache(cache); + } //end for + aasworld.portalcache[i] = NULL; + } //end for +} //end of the function AAS_RemoveRoutingCacheUsingArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_EnableRoutingArea(int areanum, int enable) +{ + int flags; + + if (areanum <= 0 || areanum >= aasworld.numareas) + { + if (botDeveloper) + { + botimport.Print(PRT_ERROR, "AAS_EnableRoutingArea: areanum %d out of range\n", areanum); + } //end if + return 0; + } //end if + flags = aasworld.areasettings[areanum].areaflags & AREA_DISABLED; + if (enable < 0) + return !flags; + + if (enable) + aasworld.areasettings[areanum].areaflags &= ~AREA_DISABLED; + else + aasworld.areasettings[areanum].areaflags |= AREA_DISABLED; + // if the status of the area changed + if ( (flags & AREA_DISABLED) != (aasworld.areasettings[areanum].areaflags & AREA_DISABLED) ) + { + //remove all routing cache involving this area + AAS_RemoveRoutingCacheUsingArea( areanum ); + } //end if + return !flags; +} //end of the function AAS_EnableRoutingArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +ID_INLINE float AAS_RoutingTime(void) +{ + return AAS_Time(); +} //end of the function AAS_RoutingTime +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_GetAreaContentsTravelFlags(int areanum) +{ + int contents, tfl; + + contents = aasworld.areasettings[areanum].contents; + tfl = 0; + if (contents & AREACONTENTS_WATER) + tfl |= TFL_WATER; + else if (contents & AREACONTENTS_SLIME) + tfl |= TFL_SLIME; + else if (contents & AREACONTENTS_LAVA) + tfl |= TFL_LAVA; + else + tfl |= TFL_AIR; + if (contents & AREACONTENTS_DONOTENTER) + tfl |= TFL_DONOTENTER; + if (contents & AREACONTENTS_NOTTEAM1) + tfl |= TFL_NOTTEAM1; + if (contents & AREACONTENTS_NOTTEAM2) + tfl |= TFL_NOTTEAM2; + if (aasworld.areasettings[areanum].areaflags & AREA_BRIDGE) + tfl |= TFL_BRIDGE; + return tfl; +} //end of the function AAS_GetAreaContentsTravelFlags +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +ID_INLINE int AAS_AreaContentsTravelFlags_inline(int areanum) +{ + return aasworld.areacontentstravelflags[areanum]; +} //end of the function AAS_AreaContentsTravelFlags +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_AreaContentsTravelFlags(int areanum) +{ + return aasworld.areacontentstravelflags[areanum]; +} //end of the function AAS_AreaContentsTravelFlags +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitAreaContentsTravelFlags(void) +{ + int i; + + if (aasworld.areacontentstravelflags) FreeMemory(aasworld.areacontentstravelflags); + aasworld.areacontentstravelflags = (int *) GetClearedMemory(aasworld.numareas * sizeof(int)); + // + for (i = 0; i < aasworld.numareas; i++) { + aasworld.areacontentstravelflags[i] = AAS_GetAreaContentsTravelFlags(i); + } +} //end of the function AAS_InitAreaContentsTravelFlags +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CreateReversedReachability(void) +{ + int i, n; + aas_reversedlink_t *revlink; + aas_reachability_t *reach; + aas_areasettings_t *settings; + char *ptr; +#ifdef DEBUG + int starttime; + + starttime = Sys_MilliSeconds(); +#endif + //free reversed links that have already been created + if (aasworld.reversedreachability) FreeMemory(aasworld.reversedreachability); + //allocate memory for the reversed reachability links + ptr = (char *) GetClearedMemory(aasworld.numareas * sizeof(aas_reversedreachability_t) + + aasworld.reachabilitysize * sizeof(aas_reversedlink_t)); + // + aasworld.reversedreachability = (aas_reversedreachability_t *) ptr; + //pointer to the memory for the reversed links + ptr += aasworld.numareas * sizeof(aas_reversedreachability_t); + //check all reachabilities of all areas + for (i = 1; i < aasworld.numareas; i++) + { + //settings of the area + settings = &aasworld.areasettings[i]; + // + if (settings->numreachableareas >= 128) + botimport.Print(PRT_WARNING, "area %d has more than 128 reachabilities\n", i); + //create reversed links for the reachabilities + for (n = 0; n < settings->numreachableareas && n < 128; n++) + { + //reachability link + reach = &aasworld.reachability[settings->firstreachablearea + n]; + // + revlink = (aas_reversedlink_t *) ptr; + ptr += sizeof(aas_reversedlink_t); + // + revlink->areanum = i; + revlink->linknum = settings->firstreachablearea + n; + revlink->next = aasworld.reversedreachability[reach->areanum].first; + aasworld.reversedreachability[reach->areanum].first = revlink; + aasworld.reversedreachability[reach->areanum].numlinks++; + } //end for + } //end for +#ifdef DEBUG + botimport.Print(PRT_MESSAGE, "reversed reachability %d msec\n", Sys_MilliSeconds() - starttime); +#endif +} //end of the function AAS_CreateReversedReachability +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +unsigned short int AAS_AreaTravelTime(int areanum, vec3_t start, vec3_t end) +{ + int intdist; + float dist; + vec3_t dir; + + VectorSubtract(start, end, dir); + dist = VectorLength(dir); + //if crouch only area + if (AAS_AreaCrouch(areanum)) dist *= DISTANCEFACTOR_CROUCH; + //if swim area + else if (AAS_AreaSwim(areanum)) dist *= DISTANCEFACTOR_SWIM; + //normal walk area + else dist *= DISTANCEFACTOR_WALK; + // + intdist = (int) dist; + //make sure the distance isn't zero + if (intdist <= 0) intdist = 1; + return intdist; +} //end of the function AAS_AreaTravelTime +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CalculateAreaTravelTimes(void) +{ + int i, l, n, size; + char *ptr; + vec3_t end; + aas_reversedreachability_t *revreach; + aas_reversedlink_t *revlink; + aas_reachability_t *reach; + aas_areasettings_t *settings; + int starttime; + + starttime = Sys_MilliSeconds(); + //if there are still area travel times, free the memory + if (aasworld.areatraveltimes) FreeMemory(aasworld.areatraveltimes); + //get the total size of all the area travel times + size = aasworld.numareas * sizeof(unsigned short **); + for (i = 0; i < aasworld.numareas; i++) + { + revreach = &aasworld.reversedreachability[i]; + //settings of the area + settings = &aasworld.areasettings[i]; + // + size += settings->numreachableareas * sizeof(unsigned short *); + // + size += settings->numreachableareas * + PAD(revreach->numlinks, sizeof(long)) * sizeof(unsigned short); + } //end for + //allocate memory for the area travel times + ptr = (char *) GetClearedMemory(size); + aasworld.areatraveltimes = (unsigned short ***) ptr; + ptr += aasworld.numareas * sizeof(unsigned short **); + //calcluate the travel times for all the areas + for (i = 0; i < aasworld.numareas; i++) + { + //reversed reachabilities of this area + revreach = &aasworld.reversedreachability[i]; + //settings of the area + settings = &aasworld.areasettings[i]; + // + aasworld.areatraveltimes[i] = (unsigned short **) ptr; + ptr += settings->numreachableareas * sizeof(unsigned short *); + // + for (l = 0; l < settings->numreachableareas; l++) + { + aasworld.areatraveltimes[i][l] = (unsigned short *) ptr; + ptr += PAD(revreach->numlinks, sizeof(long)) * sizeof(unsigned short); + //reachability link + reach = &aasworld.reachability[settings->firstreachablearea + l]; + // + for (n = 0, revlink = revreach->first; revlink; revlink = revlink->next, n++) + { + VectorCopy(aasworld.reachability[revlink->linknum].end, end); + // + aasworld.areatraveltimes[i][l][n] = AAS_AreaTravelTime(i, end, reach->start); + } //end for + } //end for + } //end for +#ifdef DEBUG + botimport.Print(PRT_MESSAGE, "area travel times %d msec\n", Sys_MilliSeconds() - starttime); +#endif +} //end of the function AAS_CalculateAreaTravelTimes +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_PortalMaxTravelTime(int portalnum) +{ + int l, n, t, maxt; + aas_portal_t *portal; + aas_reversedreachability_t *revreach; + aas_reversedlink_t *revlink; + aas_areasettings_t *settings; + + portal = &aasworld.portals[portalnum]; + //reversed reachabilities of this portal area + revreach = &aasworld.reversedreachability[portal->areanum]; + //settings of the portal area + settings = &aasworld.areasettings[portal->areanum]; + // + maxt = 0; + for (l = 0; l < settings->numreachableareas; l++) + { + for (n = 0, revlink = revreach->first; revlink; revlink = revlink->next, n++) + { + t = aasworld.areatraveltimes[portal->areanum][l][n]; + if (t > maxt) + { + maxt = t; + } //end if + } //end for + } //end for + return maxt; +} //end of the function AAS_PortalMaxTravelTime +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitPortalMaxTravelTimes(void) +{ + int i; + + if (aasworld.portalmaxtraveltimes) FreeMemory(aasworld.portalmaxtraveltimes); + + aasworld.portalmaxtraveltimes = (int *) GetClearedMemory(aasworld.numportals * sizeof(int)); + + for (i = 0; i < aasworld.numportals; i++) + { + aasworld.portalmaxtraveltimes[i] = AAS_PortalMaxTravelTime(i); + //botimport.Print(PRT_MESSAGE, "portal %d max tt = %d\n", i, aasworld.portalmaxtraveltimes[i]); + } //end for +} //end of the function AAS_InitPortalMaxTravelTimes +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +/* +int AAS_FreeOldestCache(void) +{ + int i, j, bestcluster, bestarea, freed; + float besttime; + aas_routingcache_t *cache, *bestcache; + + freed = qfalse; + besttime = 999999999; + bestcache = NULL; + bestcluster = 0; + bestarea = 0; + //refresh cluster cache + for (i = 0; i < aasworld.numclusters; i++) + { + for (j = 0; j < aasworld.clusters[i].numareas; j++) + { + for (cache = aasworld.clusterareacache[i][j]; cache; cache = cache->next) + { + //never remove cache leading towards a portal + if (aasworld.areasettings[cache->areanum].cluster < 0) continue; + //if this cache is older than the cache we found so far + if (cache->time < besttime) + { + bestcache = cache; + bestcluster = i; + bestarea = j; + besttime = cache->time; + } //end if + } //end for + } //end for + } //end for + if (bestcache) + { + cache = bestcache; + if (cache->prev) cache->prev->next = cache->next; + else aasworld.clusterareacache[bestcluster][bestarea] = cache->next; + if (cache->next) cache->next->prev = cache->prev; + AAS_FreeRoutingCache(cache); + freed = qtrue; + } //end if + besttime = 999999999; + bestcache = NULL; + bestarea = 0; + for (i = 0; i < aasworld.numareas; i++) + { + //refresh portal cache + for (cache = aasworld.portalcache[i]; cache; cache = cache->next) + { + if (cache->time < besttime) + { + bestcache = cache; + bestarea = i; + besttime = cache->time; + } //end if + } //end for + } //end for + if (bestcache) + { + cache = bestcache; + if (cache->prev) cache->prev->next = cache->next; + else aasworld.portalcache[bestarea] = cache->next; + if (cache->next) cache->next->prev = cache->prev; + AAS_FreeRoutingCache(cache); + freed = qtrue; + } //end if + return freed; +} //end of the function AAS_FreeOldestCache +*/ +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_FreeOldestCache(void) +{ + int clusterareanum; + aas_routingcache_t *cache; + + for (cache = aasworld.oldestcache; cache; cache = cache->time_next) { + // never free area cache leading towards a portal + if (cache->type == CACHETYPE_AREA && aasworld.areasettings[cache->areanum].cluster < 0) { + continue; + } + break; + } + if (cache) { + // unlink the cache + if (cache->type == CACHETYPE_AREA) { + //number of the area in the cluster + clusterareanum = AAS_ClusterAreaNum(cache->cluster, cache->areanum); + // unlink from cluster area cache + if (cache->prev) cache->prev->next = cache->next; + else aasworld.clusterareacache[cache->cluster][clusterareanum] = cache->next; + if (cache->next) cache->next->prev = cache->prev; + } + else { + // unlink from portal cache + if (cache->prev) cache->prev->next = cache->next; + else aasworld.portalcache[cache->areanum] = cache->next; + if (cache->next) cache->next->prev = cache->prev; + } + AAS_FreeRoutingCache(cache); + return qtrue; + } + return qfalse; +} //end of the function AAS_FreeOldestCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +aas_routingcache_t *AAS_AllocRoutingCache(int numtraveltimes) +{ + aas_routingcache_t *cache; + int size; + + // + size = sizeof(aas_routingcache_t) + + numtraveltimes * sizeof(unsigned short int) + + numtraveltimes * sizeof(unsigned char); + // + routingcachesize += size; + // + cache = (aas_routingcache_t *) GetClearedMemory(size); + cache->reachabilities = (unsigned char *) cache + sizeof(aas_routingcache_t) + + numtraveltimes * sizeof(unsigned short int); + cache->size = size; + return cache; +} //end of the function AAS_AllocRoutingCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeAllClusterAreaCache(void) +{ + int i, j; + aas_routingcache_t *cache, *nextcache; + aas_cluster_t *cluster; + + //free all cluster cache if existing + if (!aasworld.clusterareacache) return; + //free caches + for (i = 0; i < aasworld.numclusters; i++) + { + cluster = &aasworld.clusters[i]; + for (j = 0; j < cluster->numareas; j++) + { + for (cache = aasworld.clusterareacache[i][j]; cache; cache = nextcache) + { + nextcache = cache->next; + AAS_FreeRoutingCache(cache); + } //end for + aasworld.clusterareacache[i][j] = NULL; + } //end for + } //end for + //free the cluster cache array + FreeMemory(aasworld.clusterareacache); + aasworld.clusterareacache = NULL; +} //end of the function AAS_FreeAllClusterAreaCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitClusterAreaCache(void) +{ + int i, size; + char *ptr; + + // + for (size = 0, i = 0; i < aasworld.numclusters; i++) + { + size += aasworld.clusters[i].numareas; + } //end for + //two dimensional array with pointers for every cluster to routing cache + //for every area in that cluster + ptr = (char *) GetClearedMemory( + aasworld.numclusters * sizeof(aas_routingcache_t **) + + size * sizeof(aas_routingcache_t *)); + aasworld.clusterareacache = (aas_routingcache_t ***) ptr; + ptr += aasworld.numclusters * sizeof(aas_routingcache_t **); + for (i = 0; i < aasworld.numclusters; i++) + { + aasworld.clusterareacache[i] = (aas_routingcache_t **) ptr; + ptr += aasworld.clusters[i].numareas * sizeof(aas_routingcache_t *); + } //end for +} //end of the function AAS_InitClusterAreaCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeAllPortalCache(void) +{ + int i; + aas_routingcache_t *cache, *nextcache; + + //free all portal cache if existing + if (!aasworld.portalcache) return; + //free portal caches + for (i = 0; i < aasworld.numareas; i++) + { + for (cache = aasworld.portalcache[i]; cache; cache = nextcache) + { + nextcache = cache->next; + AAS_FreeRoutingCache(cache); + } //end for + aasworld.portalcache[i] = NULL; + } //end for + FreeMemory(aasworld.portalcache); + aasworld.portalcache = NULL; +} //end of the function AAS_FreeAllPortalCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitPortalCache(void) +{ + // + aasworld.portalcache = (aas_routingcache_t **) GetClearedMemory( + aasworld.numareas * sizeof(aas_routingcache_t *)); +} //end of the function AAS_InitPortalCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitRoutingUpdate(void) +{ + int i, maxreachabilityareas; + + //free routing update fields if already existing + if (aasworld.areaupdate) FreeMemory(aasworld.areaupdate); + // + maxreachabilityareas = 0; + for (i = 0; i < aasworld.numclusters; i++) + { + if (aasworld.clusters[i].numreachabilityareas > maxreachabilityareas) + { + maxreachabilityareas = aasworld.clusters[i].numreachabilityareas; + } //end if + } //end for + //allocate memory for the routing update fields + aasworld.areaupdate = (aas_routingupdate_t *) GetClearedMemory( + maxreachabilityareas * sizeof(aas_routingupdate_t)); + // + if (aasworld.portalupdate) FreeMemory(aasworld.portalupdate); + //allocate memory for the portal update fields + aasworld.portalupdate = (aas_routingupdate_t *) GetClearedMemory( + (aasworld.numportals+1) * sizeof(aas_routingupdate_t)); +} //end of the function AAS_InitRoutingUpdate +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_CreateAllRoutingCache(void) +{ + int i, j, t; + + aasworld.initialized = qtrue; + botimport.Print(PRT_MESSAGE, "AAS_CreateAllRoutingCache\n"); + for (i = 1; i < aasworld.numareas; i++) + { + if (!AAS_AreaReachability(i)) continue; + for (j = 1; j < aasworld.numareas; j++) + { + if (i == j) continue; + if (!AAS_AreaReachability(j)) continue; + t = AAS_AreaTravelTimeToGoalArea(i, aasworld.areas[i].center, j, TFL_DEFAULT); + //Log_Write("traveltime from %d to %d is %d", i, j, t); + } //end for + } //end for + aasworld.initialized = qfalse; +} //end of the function AAS_CreateAllRoutingCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== + +//the route cache header +//this header is followed by numportalcache + numareacache aas_routingcache_t +//structures that store routing cache +typedef struct routecacheheader_s +{ + int ident; + int version; + int numareas; + int numclusters; + int areacrc; + int clustercrc; + int numportalcache; + int numareacache; +} routecacheheader_t; + +#define RCID (('C'<<24)+('R'<<16)+('E'<<8)+'M') +#define RCVERSION 2 + +//void AAS_DecompressVis(byte *in, int numareas, byte *decompressed); +//int AAS_CompressVis(byte *vis, int numareas, byte *dest); + +void AAS_WriteRouteCache(void) +{ + int i, j, numportalcache, numareacache, totalsize; + aas_routingcache_t *cache; + aas_cluster_t *cluster; + fileHandle_t fp; + char filename[MAX_QPATH]; + routecacheheader_t routecacheheader; + + numportalcache = 0; + for (i = 0; i < aasworld.numareas; i++) + { + for (cache = aasworld.portalcache[i]; cache; cache = cache->next) + { + numportalcache++; + } //end for + } //end for + numareacache = 0; + for (i = 0; i < aasworld.numclusters; i++) + { + cluster = &aasworld.clusters[i]; + for (j = 0; j < cluster->numareas; j++) + { + for (cache = aasworld.clusterareacache[i][j]; cache; cache = cache->next) + { + numareacache++; + } //end for + } //end for + } //end for + // open the file for writing + Com_sprintf(filename, MAX_QPATH, "maps/%s.rcd", aasworld.mapname); + botimport.FS_FOpenFile( filename, &fp, FS_WRITE ); + if (!fp) + { + AAS_Error("Unable to open file: %s\n", filename); + return; + } //end if + //create the header + routecacheheader.ident = RCID; + routecacheheader.version = RCVERSION; + routecacheheader.numareas = aasworld.numareas; + routecacheheader.numclusters = aasworld.numclusters; + routecacheheader.areacrc = CRC_ProcessString( (unsigned char *)aasworld.areas, sizeof(aas_area_t) * aasworld.numareas ); + routecacheheader.clustercrc = CRC_ProcessString( (unsigned char *)aasworld.clusters, sizeof(aas_cluster_t) * aasworld.numclusters ); + routecacheheader.numportalcache = numportalcache; + routecacheheader.numareacache = numareacache; + //write the header + botimport.FS_Write(&routecacheheader, sizeof(routecacheheader_t), fp); + // + totalsize = 0; + //write all the cache + for (i = 0; i < aasworld.numareas; i++) + { + for (cache = aasworld.portalcache[i]; cache; cache = cache->next) + { + botimport.FS_Write(cache, cache->size, fp); + totalsize += cache->size; + } //end for + } //end for + for (i = 0; i < aasworld.numclusters; i++) + { + cluster = &aasworld.clusters[i]; + for (j = 0; j < cluster->numareas; j++) + { + for (cache = aasworld.clusterareacache[i][j]; cache; cache = cache->next) + { + botimport.FS_Write(cache, cache->size, fp); + totalsize += cache->size; + } //end for + } //end for + } //end for + // write the visareas + /* + for (i = 0; i < aasworld.numareas; i++) + { + if (!aasworld.areavisibility[i]) { + size = 0; + botimport.FS_Write(&size, sizeof(int), fp); + continue; + } + AAS_DecompressVis( aasworld.areavisibility[i], aasworld.numareas, aasworld.decompressedvis ); + size = AAS_CompressVis( aasworld.decompressedvis, aasworld.numareas, aasworld.decompressedvis ); + botimport.FS_Write(&size, sizeof(int), fp); + botimport.FS_Write(aasworld.decompressedvis, size, fp); + } + */ + // + botimport.FS_FCloseFile(fp); + botimport.Print(PRT_MESSAGE, "\nroute cache written to %s\n", filename); + botimport.Print(PRT_MESSAGE, "written %d bytes of routing cache\n", totalsize); +} //end of the function AAS_WriteRouteCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +aas_routingcache_t *AAS_ReadCache(fileHandle_t fp) +{ + int size; + aas_routingcache_t *cache; + + botimport.FS_Read(&size, sizeof(size), fp); + cache = (aas_routingcache_t *) GetMemory(size); + cache->size = size; + botimport.FS_Read((unsigned char *)cache + sizeof(size), size - sizeof(size), fp); + cache->reachabilities = (unsigned char *) cache + sizeof(aas_routingcache_t) - sizeof(unsigned short) + + (size - sizeof(aas_routingcache_t) + sizeof(unsigned short)) / 3 * 2; + return cache; +} //end of the function AAS_ReadCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_ReadRouteCache(void) +{ + int i, clusterareanum;//, size; + fileHandle_t fp; + char filename[MAX_QPATH]; + routecacheheader_t routecacheheader; + aas_routingcache_t *cache; + + Com_sprintf(filename, MAX_QPATH, "maps/%s.rcd", aasworld.mapname); + botimport.FS_FOpenFile( filename, &fp, FS_READ ); + if (!fp) + { + return qfalse; + } //end if + botimport.FS_Read(&routecacheheader, sizeof(routecacheheader_t), fp ); + if (routecacheheader.ident != RCID) + { + AAS_Error("%s is not a route cache dump\n"); + return qfalse; + } //end if + if (routecacheheader.version != RCVERSION) + { + AAS_Error("route cache dump has wrong version %d, should be %d", routecacheheader.version, RCVERSION); + return qfalse; + } //end if + if (routecacheheader.numareas != aasworld.numareas) + { + //AAS_Error("route cache dump has wrong number of areas\n"); + return qfalse; + } //end if + if (routecacheheader.numclusters != aasworld.numclusters) + { + //AAS_Error("route cache dump has wrong number of clusters\n"); + return qfalse; + } //end if + if (routecacheheader.areacrc != + CRC_ProcessString( (unsigned char *)aasworld.areas, sizeof(aas_area_t) * aasworld.numareas )) + { + //AAS_Error("route cache dump area CRC incorrect\n"); + return qfalse; + } //end if + if (routecacheheader.clustercrc != + CRC_ProcessString( (unsigned char *)aasworld.clusters, sizeof(aas_cluster_t) * aasworld.numclusters )) + { + //AAS_Error("route cache dump cluster CRC incorrect\n"); + return qfalse; + } //end if + //read all the portal cache + for (i = 0; i < routecacheheader.numportalcache; i++) + { + cache = AAS_ReadCache(fp); + cache->next = aasworld.portalcache[cache->areanum]; + cache->prev = NULL; + if (aasworld.portalcache[cache->areanum]) + aasworld.portalcache[cache->areanum]->prev = cache; + aasworld.portalcache[cache->areanum] = cache; + } //end for + //read all the cluster area cache + for (i = 0; i < routecacheheader.numareacache; i++) + { + cache = AAS_ReadCache(fp); + clusterareanum = AAS_ClusterAreaNum(cache->cluster, cache->areanum); + cache->next = aasworld.clusterareacache[cache->cluster][clusterareanum]; + cache->prev = NULL; + if (aasworld.clusterareacache[cache->cluster][clusterareanum]) + aasworld.clusterareacache[cache->cluster][clusterareanum]->prev = cache; + aasworld.clusterareacache[cache->cluster][clusterareanum] = cache; + } //end for + // read the visareas + /* + aasworld.areavisibility = (byte **) GetClearedMemory(aasworld.numareas * sizeof(byte *)); + aasworld.decompressedvis = (byte *) GetClearedMemory(aasworld.numareas * sizeof(byte)); + for (i = 0; i < aasworld.numareas; i++) + { + botimport.FS_Read(&size, sizeof(size), fp ); + if (size) { + aasworld.areavisibility[i] = (byte *) GetMemory(size); + botimport.FS_Read(aasworld.areavisibility[i], size, fp ); + } + } + */ + // + botimport.FS_FCloseFile(fp); + return qtrue; +} //end of the function AAS_ReadRouteCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +#define MAX_REACHABILITYPASSAREAS 32 + +void AAS_InitReachabilityAreas(void) +{ + int i, j, numareas, areas[MAX_REACHABILITYPASSAREAS]; + int numreachareas; + aas_reachability_t *reach; + vec3_t start, end; + + if (aasworld.reachabilityareas) + FreeMemory(aasworld.reachabilityareas); + if (aasworld.reachabilityareaindex) + FreeMemory(aasworld.reachabilityareaindex); + + aasworld.reachabilityareas = (aas_reachabilityareas_t *) + GetClearedMemory(aasworld.reachabilitysize * sizeof(aas_reachabilityareas_t)); + aasworld.reachabilityareaindex = (int *) + GetClearedMemory(aasworld.reachabilitysize * MAX_REACHABILITYPASSAREAS * sizeof(int)); + numreachareas = 0; + for (i = 0; i < aasworld.reachabilitysize; i++) + { + reach = &aasworld.reachability[i]; + numareas = 0; + switch(reach->traveltype & TRAVELTYPE_MASK) + { + //trace areas from start to end + case TRAVEL_BARRIERJUMP: + case TRAVEL_WATERJUMP: + VectorCopy(reach->start, end); + end[2] = reach->end[2]; + numareas = AAS_TraceAreas(reach->start, end, areas, NULL, MAX_REACHABILITYPASSAREAS); + break; + case TRAVEL_WALKOFFLEDGE: + VectorCopy(reach->end, start); + start[2] = reach->start[2]; + numareas = AAS_TraceAreas(start, reach->end, areas, NULL, MAX_REACHABILITYPASSAREAS); + break; + case TRAVEL_GRAPPLEHOOK: + numareas = AAS_TraceAreas(reach->start, reach->end, areas, NULL, MAX_REACHABILITYPASSAREAS); + break; + + //trace arch + case TRAVEL_JUMP: break; + case TRAVEL_ROCKETJUMP: break; + case TRAVEL_BFGJUMP: break; + case TRAVEL_JUMPPAD: break; + + //trace from reach->start to entity center, along entity movement + //and from entity center to reach->end + case TRAVEL_ELEVATOR: break; + case TRAVEL_FUNCBOB: break; + + //no areas in between + case TRAVEL_WALK: break; + case TRAVEL_CROUCH: break; + case TRAVEL_LADDER: break; + case TRAVEL_SWIM: break; + case TRAVEL_TELEPORT: break; + default: break; + } //end switch + aasworld.reachabilityareas[i].firstarea = numreachareas; + aasworld.reachabilityareas[i].numareas = numareas; + for (j = 0; j < numareas; j++) + { + aasworld.reachabilityareaindex[numreachareas++] = areas[j]; + } //end for + } //end for +} //end of the function AAS_InitReachabilityAreas +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_InitRouting(void) +{ + AAS_InitTravelFlagFromType(); + // + AAS_InitAreaContentsTravelFlags(); + //initialize the routing update fields + AAS_InitRoutingUpdate(); + //create reversed reachability links used by the routing update algorithm + AAS_CreateReversedReachability(); + //initialize the cluster cache + AAS_InitClusterAreaCache(); + //initialize portal cache + AAS_InitPortalCache(); + //initialize the area travel times + AAS_CalculateAreaTravelTimes(); + //calculate the maximum travel times through portals + AAS_InitPortalMaxTravelTimes(); + //get the areas reachabilities go through + AAS_InitReachabilityAreas(); + // +#ifdef ROUTING_DEBUG + numareacacheupdates = 0; + numportalcacheupdates = 0; +#endif //ROUTING_DEBUG + // + routingcachesize = 0; + max_routingcachesize = 1024 * (int) LibVarValue("max_routingcache", "4096"); + // read any routing cache if available + AAS_ReadRouteCache(); +} //end of the function AAS_InitRouting +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_FreeRoutingCaches(void) +{ + // free all the existing cluster area cache + AAS_FreeAllClusterAreaCache(); + // free all the existing portal cache + AAS_FreeAllPortalCache(); + // free cached travel times within areas + if (aasworld.areatraveltimes) FreeMemory(aasworld.areatraveltimes); + aasworld.areatraveltimes = NULL; + // free cached maximum travel time through cluster portals + if (aasworld.portalmaxtraveltimes) FreeMemory(aasworld.portalmaxtraveltimes); + aasworld.portalmaxtraveltimes = NULL; + // free reversed reachability links + if (aasworld.reversedreachability) FreeMemory(aasworld.reversedreachability); + aasworld.reversedreachability = NULL; + // free routing algorithm memory + if (aasworld.areaupdate) FreeMemory(aasworld.areaupdate); + aasworld.areaupdate = NULL; + if (aasworld.portalupdate) FreeMemory(aasworld.portalupdate); + aasworld.portalupdate = NULL; + // free lists with areas the reachabilities go through + if (aasworld.reachabilityareas) FreeMemory(aasworld.reachabilityareas); + aasworld.reachabilityareas = NULL; + // free the reachability area index + if (aasworld.reachabilityareaindex) FreeMemory(aasworld.reachabilityareaindex); + aasworld.reachabilityareaindex = NULL; + // free area contents travel flags look up table + if (aasworld.areacontentstravelflags) FreeMemory(aasworld.areacontentstravelflags); + aasworld.areacontentstravelflags = NULL; +} //end of the function AAS_FreeRoutingCaches +//=========================================================================== +// update the given routing cache +// +// Parameter: areacache : routing cache to update +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_UpdateAreaRoutingCache(aas_routingcache_t *areacache) +{ + int i, nextareanum, cluster, badtravelflags, clusterareanum, linknum; + int numreachabilityareas; + unsigned short int t, startareatraveltimes[128]; //NOTE: not more than 128 reachabilities per area allowed + aas_routingupdate_t *updateliststart, *updatelistend, *curupdate, *nextupdate; + aas_reachability_t *reach; + aas_reversedreachability_t *revreach; + aas_reversedlink_t *revlink; + +#ifdef ROUTING_DEBUG + numareacacheupdates++; +#endif //ROUTING_DEBUG + //number of reachability areas within this cluster + numreachabilityareas = aasworld.clusters[areacache->cluster].numreachabilityareas; + // + aasworld.frameroutingupdates++; + //clear the routing update fields +// Com_Memset(aasworld.areaupdate, 0, aasworld.numareas * sizeof(aas_routingupdate_t)); + // + badtravelflags = ~areacache->travelflags; + // + clusterareanum = AAS_ClusterAreaNum(areacache->cluster, areacache->areanum); + if (clusterareanum >= numreachabilityareas) return; + // + Com_Memset(startareatraveltimes, 0, sizeof(startareatraveltimes)); + // + curupdate = &aasworld.areaupdate[clusterareanum]; + curupdate->areanum = areacache->areanum; + //VectorCopy(areacache->origin, curupdate->start); + curupdate->areatraveltimes = startareatraveltimes; + curupdate->tmptraveltime = areacache->starttraveltime; + // + areacache->traveltimes[clusterareanum] = areacache->starttraveltime; + //put the area to start with in the current read list + curupdate->next = NULL; + curupdate->prev = NULL; + updateliststart = curupdate; + updatelistend = curupdate; + //while there are updates in the current list + while (updateliststart) + { + curupdate = updateliststart; + // + if (curupdate->next) curupdate->next->prev = NULL; + else updatelistend = NULL; + updateliststart = curupdate->next; + // + curupdate->inlist = qfalse; + //check all reversed reachability links + revreach = &aasworld.reversedreachability[curupdate->areanum]; + // + for (i = 0, revlink = revreach->first; revlink; revlink = revlink->next, i++) + { + linknum = revlink->linknum; + reach = &aasworld.reachability[linknum]; + //if there is used an undesired travel type + if (AAS_TravelFlagForType_inline(reach->traveltype) & badtravelflags) continue; + //if not allowed to enter the next area + if (aasworld.areasettings[reach->areanum].areaflags & AREA_DISABLED) continue; + //if the next area has a not allowed travel flag + if (AAS_AreaContentsTravelFlags_inline(reach->areanum) & badtravelflags) continue; + //number of the area the reversed reachability leads to + nextareanum = revlink->areanum; + //get the cluster number of the area + cluster = aasworld.areasettings[nextareanum].cluster; + //don't leave the cluster + if (cluster > 0 && cluster != areacache->cluster) continue; + //get the number of the area in the cluster + clusterareanum = AAS_ClusterAreaNum(areacache->cluster, nextareanum); + if (clusterareanum >= numreachabilityareas) continue; + //time already travelled plus the traveltime through + //the current area plus the travel time from the reachability + t = curupdate->tmptraveltime + + //AAS_AreaTravelTime(curupdate->areanum, curupdate->start, reach->end) + + curupdate->areatraveltimes[i] + + reach->traveltime; + // + if (!areacache->traveltimes[clusterareanum] || + areacache->traveltimes[clusterareanum] > t) + { + areacache->traveltimes[clusterareanum] = t; + areacache->reachabilities[clusterareanum] = linknum - aasworld.areasettings[nextareanum].firstreachablearea; + nextupdate = &aasworld.areaupdate[clusterareanum]; + nextupdate->areanum = nextareanum; + nextupdate->tmptraveltime = t; + //VectorCopy(reach->start, nextupdate->start); + nextupdate->areatraveltimes = aasworld.areatraveltimes[nextareanum][linknum - + aasworld.areasettings[nextareanum].firstreachablearea]; + if (!nextupdate->inlist) + { + // we add the update to the end of the list + // we could also use a B+ tree to have a real sorted list + // on travel time which makes for faster routing updates + nextupdate->next = NULL; + nextupdate->prev = updatelistend; + if (updatelistend) updatelistend->next = nextupdate; + else updateliststart = nextupdate; + updatelistend = nextupdate; + nextupdate->inlist = qtrue; + } //end if + } //end if + } //end for + } //end while +} //end of the function AAS_UpdateAreaRoutingCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +aas_routingcache_t *AAS_GetAreaRoutingCache(int clusternum, int areanum, int travelflags) +{ + int clusterareanum; + aas_routingcache_t *cache, *clustercache; + + //number of the area in the cluster + clusterareanum = AAS_ClusterAreaNum(clusternum, areanum); + //pointer to the cache for the area in the cluster + clustercache = aasworld.clusterareacache[clusternum][clusterareanum]; + //find the cache without undesired travel flags + for (cache = clustercache; cache; cache = cache->next) + { + //if there aren't used any undesired travel types for the cache + if (cache->travelflags == travelflags) break; + } //end for + //if there was no cache + if (!cache) + { + cache = AAS_AllocRoutingCache(aasworld.clusters[clusternum].numreachabilityareas); + cache->cluster = clusternum; + cache->areanum = areanum; + VectorCopy(aasworld.areas[areanum].center, cache->origin); + cache->starttraveltime = 1; + cache->travelflags = travelflags; + cache->prev = NULL; + cache->next = clustercache; + if (clustercache) clustercache->prev = cache; + aasworld.clusterareacache[clusternum][clusterareanum] = cache; + AAS_UpdateAreaRoutingCache(cache); + } //end if + else + { + AAS_UnlinkCache(cache); + } //end else + //the cache has been accessed + cache->time = AAS_RoutingTime(); + cache->type = CACHETYPE_AREA; + AAS_LinkCache(cache); + return cache; +} //end of the function AAS_GetAreaRoutingCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_UpdatePortalRoutingCache(aas_routingcache_t *portalcache) +{ + int i, portalnum, clusterareanum, clusternum; + unsigned short int t; + aas_portal_t *portal; + aas_cluster_t *cluster; + aas_routingcache_t *cache; + aas_routingupdate_t *updateliststart, *updatelistend, *curupdate, *nextupdate; + +#ifdef ROUTING_DEBUG + numportalcacheupdates++; +#endif //ROUTING_DEBUG + //clear the routing update fields +// Com_Memset(aasworld.portalupdate, 0, (aasworld.numportals+1) * sizeof(aas_routingupdate_t)); + // + curupdate = &aasworld.portalupdate[aasworld.numportals]; + curupdate->cluster = portalcache->cluster; + curupdate->areanum = portalcache->areanum; + curupdate->tmptraveltime = portalcache->starttraveltime; + //if the start area is a cluster portal, store the travel time for that portal + clusternum = aasworld.areasettings[portalcache->areanum].cluster; + if (clusternum < 0) + { + portalcache->traveltimes[-clusternum] = portalcache->starttraveltime; + } //end if + //put the area to start with in the current read list + curupdate->next = NULL; + curupdate->prev = NULL; + updateliststart = curupdate; + updatelistend = curupdate; + //while there are updates in the current list + while (updateliststart) + { + curupdate = updateliststart; + //remove the current update from the list + if (curupdate->next) curupdate->next->prev = NULL; + else updatelistend = NULL; + updateliststart = curupdate->next; + //current update is removed from the list + curupdate->inlist = qfalse; + // + cluster = &aasworld.clusters[curupdate->cluster]; + // + cache = AAS_GetAreaRoutingCache(curupdate->cluster, + curupdate->areanum, portalcache->travelflags); + //take all portals of the cluster + for (i = 0; i < cluster->numportals; i++) + { + portalnum = aasworld.portalindex[cluster->firstportal + i]; + portal = &aasworld.portals[portalnum]; + //if this is the portal of the current update continue + if (portal->areanum == curupdate->areanum) continue; + // + clusterareanum = AAS_ClusterAreaNum(curupdate->cluster, portal->areanum); + if (clusterareanum >= cluster->numreachabilityareas) continue; + // + t = cache->traveltimes[clusterareanum]; + if (!t) continue; + t += curupdate->tmptraveltime; + // + if (!portalcache->traveltimes[portalnum] || + portalcache->traveltimes[portalnum] > t) + { + portalcache->traveltimes[portalnum] = t; + nextupdate = &aasworld.portalupdate[portalnum]; + if (portal->frontcluster == curupdate->cluster) + { + nextupdate->cluster = portal->backcluster; + } //end if + else + { + nextupdate->cluster = portal->frontcluster; + } //end else + nextupdate->areanum = portal->areanum; + //add travel time through the actual portal area for the next update + nextupdate->tmptraveltime = t + aasworld.portalmaxtraveltimes[portalnum]; + if (!nextupdate->inlist) + { + // we add the update to the end of the list + // we could also use a B+ tree to have a real sorted list + // on travel time which makes for faster routing updates + nextupdate->next = NULL; + nextupdate->prev = updatelistend; + if (updatelistend) updatelistend->next = nextupdate; + else updateliststart = nextupdate; + updatelistend = nextupdate; + nextupdate->inlist = qtrue; + } //end if + } //end if + } //end for + } //end while +} //end of the function AAS_UpdatePortalRoutingCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +aas_routingcache_t *AAS_GetPortalRoutingCache(int clusternum, int areanum, int travelflags) +{ + aas_routingcache_t *cache; + + //find the cached portal routing if existing + for (cache = aasworld.portalcache[areanum]; cache; cache = cache->next) + { + if (cache->travelflags == travelflags) break; + } //end for + //if the portal routing isn't cached + if (!cache) + { + cache = AAS_AllocRoutingCache(aasworld.numportals); + cache->cluster = clusternum; + cache->areanum = areanum; + VectorCopy(aasworld.areas[areanum].center, cache->origin); + cache->starttraveltime = 1; + cache->travelflags = travelflags; + //add the cache to the cache list + cache->prev = NULL; + cache->next = aasworld.portalcache[areanum]; + if (aasworld.portalcache[areanum]) aasworld.portalcache[areanum]->prev = cache; + aasworld.portalcache[areanum] = cache; + //update the cache + AAS_UpdatePortalRoutingCache(cache); + } //end if + else + { + AAS_UnlinkCache(cache); + } //end else + //the cache has been accessed + cache->time = AAS_RoutingTime(); + cache->type = CACHETYPE_PORTAL; + AAS_LinkCache(cache); + return cache; +} //end of the function AAS_GetPortalRoutingCache +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_AreaRouteToGoalArea(int areanum, vec3_t origin, int goalareanum, int travelflags, int *traveltime, int *reachnum) +{ + int clusternum, goalclusternum, portalnum, i, clusterareanum, bestreachnum; + unsigned short int t, besttime; + aas_portal_t *portal; + aas_cluster_t *cluster; + aas_routingcache_t *areacache, *portalcache; + aas_reachability_t *reach; + + if (!aasworld.initialized) return qfalse; + + if (areanum == goalareanum) + { + *traveltime = 1; + *reachnum = 0; + return qtrue; + } + // + if (areanum <= 0 || areanum >= aasworld.numareas) + { + if (botDeveloper) + { + botimport.Print(PRT_ERROR, "AAS_AreaTravelTimeToGoalArea: areanum %d out of range\n", areanum); + } //end if + return qfalse; + } //end if + if (goalareanum <= 0 || goalareanum >= aasworld.numareas) + { + if (botDeveloper) + { + botimport.Print(PRT_ERROR, "AAS_AreaTravelTimeToGoalArea: goalareanum %d out of range\n", goalareanum); + } //end if + return qfalse; + } //end if + // make sure the routing cache doesn't grow to large + while(AvailableMemory() < 1 * 1024 * 1024) { + if (!AAS_FreeOldestCache()) break; + } + // + if (AAS_AreaDoNotEnter(areanum) || AAS_AreaDoNotEnter(goalareanum)) + { + travelflags |= TFL_DONOTENTER; + } //end if + //NOTE: the number of routing updates is limited per frame + /* + if (aasworld.frameroutingupdates > MAX_FRAMEROUTINGUPDATES) + { +#ifdef DEBUG + //Log_Write("WARNING: AAS_AreaTravelTimeToGoalArea: frame routing updates overflowed"); +#endif + return 0; + } //end if + */ + // + clusternum = aasworld.areasettings[areanum].cluster; + goalclusternum = aasworld.areasettings[goalareanum].cluster; + //check if the area is a portal of the goal area cluster + if (clusternum < 0 && goalclusternum > 0) + { + portal = &aasworld.portals[-clusternum]; + if (portal->frontcluster == goalclusternum || + portal->backcluster == goalclusternum) + { + clusternum = goalclusternum; + } //end if + } //end if + //check if the goalarea is a portal of the area cluster + else if (clusternum > 0 && goalclusternum < 0) + { + portal = &aasworld.portals[-goalclusternum]; + if (portal->frontcluster == clusternum || + portal->backcluster == clusternum) + { + goalclusternum = clusternum; + } //end if + } //end if + //if both areas are in the same cluster + //NOTE: there might be a shorter route via another cluster!!! but we don't care + if (clusternum > 0 && goalclusternum > 0 && clusternum == goalclusternum) + { + // + areacache = AAS_GetAreaRoutingCache(clusternum, goalareanum, travelflags); + //the number of the area in the cluster + clusterareanum = AAS_ClusterAreaNum(clusternum, areanum); + //the cluster the area is in + cluster = &aasworld.clusters[clusternum]; + //if the area is NOT a reachability area + if (clusterareanum >= cluster->numreachabilityareas) return 0; + //if it is possible to travel to the goal area through this cluster + if (areacache->traveltimes[clusterareanum] != 0) + { + *reachnum = aasworld.areasettings[areanum].firstreachablearea + + areacache->reachabilities[clusterareanum]; + if (!origin) { + *traveltime = areacache->traveltimes[clusterareanum]; + return qtrue; + } + reach = &aasworld.reachability[*reachnum]; + *traveltime = areacache->traveltimes[clusterareanum] + + AAS_AreaTravelTime(areanum, origin, reach->start); + // + return qtrue; + } //end if + } //end if + // + clusternum = aasworld.areasettings[areanum].cluster; + goalclusternum = aasworld.areasettings[goalareanum].cluster; + //if the goal area is a portal + if (goalclusternum < 0) + { + //just assume the goal area is part of the front cluster + portal = &aasworld.portals[-goalclusternum]; + goalclusternum = portal->frontcluster; + } //end if + //get the portal routing cache + portalcache = AAS_GetPortalRoutingCache(goalclusternum, goalareanum, travelflags); + //if the area is a cluster portal, read directly from the portal cache + if (clusternum < 0) + { + *traveltime = portalcache->traveltimes[-clusternum]; + *reachnum = aasworld.areasettings[areanum].firstreachablearea + + portalcache->reachabilities[-clusternum]; + return qtrue; + } //end if + // + besttime = 0; + bestreachnum = -1; + //the cluster the area is in + cluster = &aasworld.clusters[clusternum]; + //find the portal of the area cluster leading towards the goal area + for (i = 0; i < cluster->numportals; i++) + { + portalnum = aasworld.portalindex[cluster->firstportal + i]; + //if the goal area isn't reachable from the portal + if (!portalcache->traveltimes[portalnum]) continue; + // + portal = &aasworld.portals[portalnum]; + //get the cache of the portal area + areacache = AAS_GetAreaRoutingCache(clusternum, portal->areanum, travelflags); + //current area inside the current cluster + clusterareanum = AAS_ClusterAreaNum(clusternum, areanum); + //if the area is NOT a reachability area + if (clusterareanum >= cluster->numreachabilityareas) continue; + //if the portal is NOT reachable from this area + if (!areacache->traveltimes[clusterareanum]) continue; + //total travel time is the travel time the portal area is from + //the goal area plus the travel time towards the portal area + t = portalcache->traveltimes[portalnum] + areacache->traveltimes[clusterareanum]; + //FIXME: add the exact travel time through the actual portal area + //NOTE: for now we just add the largest travel time through the portal area + // because we can't directly calculate the exact travel time + // to be more specific we don't know which reachability was used to travel + // into the portal area + t += aasworld.portalmaxtraveltimes[portalnum]; + // + if (origin) + { + *reachnum = aasworld.areasettings[areanum].firstreachablearea + + areacache->reachabilities[clusterareanum]; + reach = aasworld.reachability + *reachnum; + t += AAS_AreaTravelTime(areanum, origin, reach->start); + } //end if + //if the time is better than the one already found + if (!besttime || t < besttime) + { + bestreachnum = *reachnum; + besttime = t; + } //end if + } //end for + if (bestreachnum < 0) { + return qfalse; + } + *reachnum = bestreachnum; + *traveltime = besttime; + return qtrue; +} //end of the function AAS_AreaRouteToGoalArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_AreaTravelTimeToGoalArea(int areanum, vec3_t origin, int goalareanum, int travelflags) +{ + int traveltime, reachnum; + + if (AAS_AreaRouteToGoalArea(areanum, origin, goalareanum, travelflags, &traveltime, &reachnum)) + { + return traveltime; + } + return 0; +} //end of the function AAS_AreaTravelTimeToGoalArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_AreaReachabilityToGoalArea(int areanum, vec3_t origin, int goalareanum, int travelflags) +{ + int traveltime, reachnum; + + if (AAS_AreaRouteToGoalArea(areanum, origin, goalareanum, travelflags, &traveltime, &reachnum)) + { + return reachnum; + } + return 0; +} //end of the function AAS_AreaReachabilityToGoalArea +//=========================================================================== +// predict the route and stop on one of the stop events +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_PredictRoute(struct aas_predictroute_s *route, int areanum, vec3_t origin, + int goalareanum, int travelflags, int maxareas, int maxtime, + int stopevent, int stopcontents, int stoptfl, int stopareanum) +{ + int curareanum, reachnum, i, j, testareanum; + vec3_t curorigin; + aas_reachability_t *reach; + aas_reachabilityareas_t *reachareas; + + //init output + route->stopevent = RSE_NONE; + route->endarea = goalareanum; + route->endcontents = 0; + route->endtravelflags = 0; + VectorCopy(origin, route->endpos); + route->time = 0; + + curareanum = areanum; + VectorCopy(origin, curorigin); + + for (i = 0; curareanum != goalareanum && (!maxareas || i < maxareas) && i < aasworld.numareas; i++) + { + reachnum = AAS_AreaReachabilityToGoalArea(curareanum, curorigin, goalareanum, travelflags); + if (!reachnum) + { + route->stopevent = RSE_NOROUTE; + return qfalse; + } //end if + reach = &aasworld.reachability[reachnum]; + // + if (stopevent & RSE_USETRAVELTYPE) + { + if (AAS_TravelFlagForType_inline(reach->traveltype) & stoptfl) + { + route->stopevent = RSE_USETRAVELTYPE; + route->endarea = curareanum; + route->endcontents = aasworld.areasettings[curareanum].contents; + route->endtravelflags = AAS_TravelFlagForType_inline(reach->traveltype); + VectorCopy(reach->start, route->endpos); + return qtrue; + } //end if + if (AAS_AreaContentsTravelFlags_inline(reach->areanum) & stoptfl) + { + route->stopevent = RSE_USETRAVELTYPE; + route->endarea = reach->areanum; + route->endcontents = aasworld.areasettings[reach->areanum].contents; + route->endtravelflags = AAS_AreaContentsTravelFlags_inline(reach->areanum); + VectorCopy(reach->end, route->endpos); + route->time += AAS_AreaTravelTime(areanum, origin, reach->start); + route->time += reach->traveltime; + return qtrue; + } //end if + } //end if + reachareas = &aasworld.reachabilityareas[reachnum]; + for (j = 0; j < reachareas->numareas + 1; j++) + { + if (j >= reachareas->numareas) + testareanum = reach->areanum; + else + testareanum = aasworld.reachabilityareaindex[reachareas->firstarea + j]; + if (stopevent & RSE_ENTERCONTENTS) + { + if (aasworld.areasettings[testareanum].contents & stopcontents) + { + route->stopevent = RSE_ENTERCONTENTS; + route->endarea = testareanum; + route->endcontents = aasworld.areasettings[testareanum].contents; + VectorCopy(reach->end, route->endpos); + route->time += AAS_AreaTravelTime(areanum, origin, reach->start); + route->time += reach->traveltime; + return qtrue; + } //end if + } //end if + if (stopevent & RSE_ENTERAREA) + { + if (testareanum == stopareanum) + { + route->stopevent = RSE_ENTERAREA; + route->endarea = testareanum; + route->endcontents = aasworld.areasettings[testareanum].contents; + VectorCopy(reach->start, route->endpos); + return qtrue; + } //end if + } //end if + } //end for + + route->time += AAS_AreaTravelTime(areanum, origin, reach->start); + route->time += reach->traveltime; + route->endarea = reach->areanum; + route->endcontents = aasworld.areasettings[reach->areanum].contents; + route->endtravelflags = AAS_TravelFlagForType_inline(reach->traveltype); + VectorCopy(reach->end, route->endpos); + // + curareanum = reach->areanum; + VectorCopy(reach->end, curorigin); + // + if (maxtime && route->time > maxtime) + break; + } //end while + if (curareanum != goalareanum) + return qfalse; + return qtrue; +} //end of the function AAS_PredictRoute +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_BridgeWalkable(int areanum) +{ + return qfalse; +} //end of the function AAS_BridgeWalkable +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +void AAS_ReachabilityFromNum(int num, struct aas_reachability_s *reach) +{ + if (!aasworld.initialized) + { + Com_Memset(reach, 0, sizeof(aas_reachability_t)); + return; + } //end if + if (num < 0 || num >= aasworld.reachabilitysize) + { + Com_Memset(reach, 0, sizeof(aas_reachability_t)); + return; + } //end if + Com_Memcpy(reach, &aasworld.reachability[num], sizeof(aas_reachability_t));; +} //end of the function AAS_ReachabilityFromNum +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_NextAreaReachability(int areanum, int reachnum) +{ + aas_areasettings_t *settings; + + if (!aasworld.initialized) return 0; + + if (areanum <= 0 || areanum >= aasworld.numareas) + { + botimport.Print(PRT_ERROR, "AAS_NextAreaReachability: areanum %d out of range\n", areanum); + return 0; + } //end if + + settings = &aasworld.areasettings[areanum]; + if (!reachnum) + { + return settings->firstreachablearea; + } //end if + if (reachnum < settings->firstreachablearea) + { + botimport.Print(PRT_FATAL, "AAS_NextAreaReachability: reachnum < settings->firstreachableara"); + return 0; + } //end if + reachnum++; + if (reachnum >= settings->firstreachablearea + settings->numreachableareas) + { + return 0; + } //end if + return reachnum; +} //end of the function AAS_NextAreaReachability +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_NextModelReachability(int num, int modelnum) +{ + int i; + + if (num <= 0) num = 1; + else if (num >= aasworld.reachabilitysize) return 0; + else num++; + // + for (i = num; i < aasworld.reachabilitysize; i++) + { + if ((aasworld.reachability[i].traveltype & TRAVELTYPE_MASK) == TRAVEL_ELEVATOR) + { + if (aasworld.reachability[i].facenum == modelnum) return i; + } //end if + else if ((aasworld.reachability[i].traveltype & TRAVELTYPE_MASK) == TRAVEL_FUNCBOB) + { + if ((aasworld.reachability[i].facenum & 0x0000FFFF) == modelnum) return i; + } //end if + } //end for + return 0; +} //end of the function AAS_NextModelReachability +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_RandomGoalArea(int areanum, int travelflags, int *goalareanum, vec3_t goalorigin) +{ + int i, n, t; + vec3_t start, end; + aas_trace_t trace; + + //if the area has no reachabilities + if (!AAS_AreaReachability(areanum)) return qfalse; + // + n = aasworld.numareas * random(); + for (i = 0; i < aasworld.numareas; i++) + { + if (n <= 0) n = 1; + if (n >= aasworld.numareas) n = 1; + if (AAS_AreaReachability(n)) + { + t = AAS_AreaTravelTimeToGoalArea(areanum, aasworld.areas[areanum].center, n, travelflags); + //if the goal is reachable + if (t > 0) + { + if (AAS_AreaSwim(n)) + { + *goalareanum = n; + VectorCopy(aasworld.areas[n].center, goalorigin); + //botimport.Print(PRT_MESSAGE, "found random goal area %d\n", *goalareanum); + return qtrue; + } //end if + VectorCopy(aasworld.areas[n].center, start); + if (!AAS_PointAreaNum(start)) + Log_Write("area %d center %f %f %f in solid?", n, start[0], start[1], start[2]); + VectorCopy(start, end); + end[2] -= 300; + trace = AAS_TraceClientBBox(start, end, PRESENCE_CROUCH, -1); + if (!trace.startsolid && trace.fraction < 1 && AAS_PointAreaNum(trace.endpos) == n) + { + if (AAS_AreaGroundFaceArea(n) > 300) + { + *goalareanum = n; + VectorCopy(trace.endpos, goalorigin); + //botimport.Print(PRT_MESSAGE, "found random goal area %d\n", *goalareanum); + return qtrue; + } //end if + } //end if + } //end if + } //end if + n++; + } //end for + return qfalse; +} //end of the function AAS_RandomGoalArea +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_AreaVisible(int srcarea, int destarea) +{ + return qfalse; +} //end of the function AAS_AreaVisible +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +float DistancePointToLine(vec3_t v1, vec3_t v2, vec3_t point) +{ + vec3_t vec, p2; + + AAS_ProjectPointOntoVector(point, v1, v2, p2); + VectorSubtract(point, p2, vec); + return VectorLength(vec); +} //end of the function DistancePointToLine +//=========================================================================== +// +// Parameter: - +// Returns: - +// Changes Globals: - +//=========================================================================== +int AAS_NearestHideArea(int srcnum, vec3_t origin, int areanum, int enemynum, vec3_t enemyorigin, int enemyareanum, int travelflags) +{ + int i, j, nextareanum, badtravelflags, numreach, bestarea; + unsigned short int t, besttraveltime; + static unsigned short int *hidetraveltimes; + aas_routingupdate_t *updateliststart, *updatelistend, *curupdate, *nextupdate; + aas_reachability_t *reach; + float dist1, dist2; + vec3_t v1, v2, p; + qboolean startVisible; + + // + if (!hidetraveltimes) + { + hidetraveltimes = (unsigned short int *) GetClearedMemory(aasworld.numareas * sizeof(unsigned short int)); + } //end if + else + { + Com_Memset(hidetraveltimes, 0, aasworld.numareas * sizeof(unsigned short int)); + } //end else + besttraveltime = 0; + bestarea = 0; + //assume visible + startVisible = qtrue; + // + badtravelflags = ~travelflags; + // + curupdate = &aasworld.areaupdate[areanum]; + curupdate->areanum = areanum; + VectorCopy(origin, curupdate->start); + curupdate->areatraveltimes = aasworld.areatraveltimes[areanum][0]; + curupdate->tmptraveltime = 0; + //put the area to start with in the current read list + curupdate->next = NULL; + curupdate->prev = NULL; + updateliststart = curupdate; + updatelistend = curupdate; + //while there are updates in the list + while (updateliststart) + { + curupdate = updateliststart; + // + if (curupdate->next) curupdate->next->prev = NULL; + else updatelistend = NULL; + updateliststart = curupdate->next; + // + curupdate->inlist = qfalse; + //check all reversed reachability links + numreach = aasworld.areasettings[curupdate->areanum].numreachableareas; + reach = &aasworld.reachability[aasworld.areasettings[curupdate->areanum].firstreachablearea]; + // + for (i = 0; i < numreach; i++, reach++) + { + //if an undesired travel type is used + if (AAS_TravelFlagForType_inline(reach->traveltype) & badtravelflags) continue; + // + if (AAS_AreaContentsTravelFlags_inline(reach->areanum) & badtravelflags) continue; + //number of the area the reachability leads to + nextareanum = reach->areanum; + // if this moves us into the enemies area, skip it + if (nextareanum == enemyareanum) continue; + //time already travelled plus the traveltime through + //the current area plus the travel time from the reachability + t = curupdate->tmptraveltime + + AAS_AreaTravelTime(curupdate->areanum, curupdate->start, reach->start) + + reach->traveltime; + + //avoid going near the enemy + AAS_ProjectPointOntoVector(enemyorigin, curupdate->start, reach->end, p); + for (j = 0; j < 3; j++) + if ((p[j] > curupdate->start[j] && p[j] > reach->end[j]) || + (p[j] < curupdate->start[j] && p[j] < reach->end[j])) + break; + if (j < 3) + { + VectorSubtract(enemyorigin, reach->end, v2); + } //end if + else + { + VectorSubtract(enemyorigin, p, v2); + } //end else + dist2 = VectorLength(v2); + //never go through the enemy + if (dist2 < 40) continue; + // + VectorSubtract(enemyorigin, curupdate->start, v1); + dist1 = VectorLength(v1); + // + if (dist2 < dist1) + { + t += (dist1 - dist2) * 10; + } + // if we weren't visible when starting, make sure we don't move into their view + if (!startVisible && AAS_AreaVisible(enemyareanum, nextareanum)) { + continue; + } + // + if (besttraveltime && t >= besttraveltime) continue; + // + if (!hidetraveltimes[nextareanum] || + hidetraveltimes[nextareanum] > t) + { + //if the nextarea is not visible from the enemy area + if (!AAS_AreaVisible(enemyareanum, nextareanum)) + { + besttraveltime = t; + bestarea = nextareanum; + } //end if + hidetraveltimes[nextareanum] = t; + nextupdate = &aasworld.areaupdate[nextareanum]; + nextupdate->areanum = nextareanum; + nextupdate->tmptraveltime = t; + //remember where we entered this area + VectorCopy(reach->end, nextupdate->start); + //if this update is not in the list yet + if (!nextupdate->inlist) + { + //add the new update to the end of the list + nextupdate->next = NULL; + nextupdate->prev = updatelistend; + if (updatelistend) updatelistend->next = nextupdate; + else updateliststart = nextupdate; + updatelistend = nextupdate; + nextupdate->inlist = qtrue; + } //end if + } //end if + } //end for + } //end while + return bestarea; +} //end of the function AAS_NearestHideArea |