ref: 761946b93cf45a3b9e47868a704fb165af760333
dir: /code/botlib/be_aas_cluster.c/
/* =========================================================================== 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 Foobar; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA =========================================================================== */ /***************************************************************************** * name: be_aas_cluster.c * * desc: area clustering * * $Archive: /MissionPack/code/botlib/be_aas_cluster.c $ * *****************************************************************************/ #include "../game/q_shared.h" #include "l_memory.h" #include "l_script.h" #include "l_precomp.h" #include "l_struct.h" #include "l_log.h" #include "l_memory.h" #include "l_libvar.h" #include "aasfile.h" #include "../game/botlib.h" #include "../game/be_aas.h" #include "be_aas_funcs.h" #include "be_aas_def.h" extern botlib_import_t botimport; #define AAS_MAX_PORTALS 65536 #define AAS_MAX_PORTALINDEXSIZE 65536 #define AAS_MAX_CLUSTERS 65536 // #define MAX_PORTALAREAS 1024 // do not flood through area faces, only use reachabilities int nofaceflood = qtrue; //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_RemoveClusterAreas(void) { int i; for (i = 1; i < aasworld.numareas; i++) { aasworld.areasettings[i].cluster = 0; } //end for } //end of the function AAS_RemoveClusterAreas //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_ClearCluster(int clusternum) { int i; for (i = 1; i < aasworld.numareas; i++) { if (aasworld.areasettings[i].cluster == clusternum) { aasworld.areasettings[i].cluster = 0; } //end if } //end for } //end of the function AAS_ClearCluster //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_RemovePortalsClusterReference(int clusternum) { int portalnum; for (portalnum = 1; portalnum < aasworld.numportals; portalnum++) { if (aasworld.portals[portalnum].frontcluster == clusternum) { aasworld.portals[portalnum].frontcluster = 0; } //end if if (aasworld.portals[portalnum].backcluster == clusternum) { aasworld.portals[portalnum].backcluster = 0; } //end if } //end for } //end of the function AAS_RemovePortalsClusterReference //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_UpdatePortal(int areanum, int clusternum) { int portalnum; aas_portal_t *portal; aas_cluster_t *cluster; //find the portal of the area for (portalnum = 1; portalnum < aasworld.numportals; portalnum++) { if (aasworld.portals[portalnum].areanum == areanum) break; } //end for // if (portalnum == aasworld.numportals) { AAS_Error("no portal of area %d", areanum); return qtrue; } //end if // portal = &aasworld.portals[portalnum]; //if the portal is already fully updated if (portal->frontcluster == clusternum) return qtrue; if (portal->backcluster == clusternum) return qtrue; //if the portal has no front cluster yet if (!portal->frontcluster) { portal->frontcluster = clusternum; } //end if //if the portal has no back cluster yet else if (!portal->backcluster) { portal->backcluster = clusternum; } //end else if else { //remove the cluster portal flag contents aasworld.areasettings[areanum].contents &= ~AREACONTENTS_CLUSTERPORTAL; Log_Write("portal area %d is seperating more than two clusters\r\n", areanum); return qfalse; } //end else if (aasworld.portalindexsize >= AAS_MAX_PORTALINDEXSIZE) { AAS_Error("AAS_MAX_PORTALINDEXSIZE"); return qtrue; } //end if //set the area cluster number to the negative portal number aasworld.areasettings[areanum].cluster = -portalnum; //add the portal to the cluster using the portal index cluster = &aasworld.clusters[clusternum]; aasworld.portalindex[cluster->firstportal + cluster->numportals] = portalnum; aasworld.portalindexsize++; cluster->numportals++; return qtrue; } //end of the function AAS_UpdatePortal //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_FloodClusterAreas_r(int areanum, int clusternum) { aas_area_t *area; aas_face_t *face; int facenum, i; // if (areanum <= 0 || areanum >= aasworld.numareas) { AAS_Error("AAS_FloodClusterAreas_r: areanum out of range"); return qfalse; } //end if //if the area is already part of a cluster if (aasworld.areasettings[areanum].cluster > 0) { if (aasworld.areasettings[areanum].cluster == clusternum) return qtrue; // //there's a reachability going from one cluster to another only in one direction // AAS_Error("cluster %d touched cluster %d at area %d\r\n", clusternum, aasworld.areasettings[areanum].cluster, areanum); return qfalse; } //end if //don't add the cluster portal areas to the clusters if (aasworld.areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL) { return AAS_UpdatePortal(areanum, clusternum); } //end if //set the area cluster number aasworld.areasettings[areanum].cluster = clusternum; aasworld.areasettings[areanum].clusterareanum = aasworld.clusters[clusternum].numareas; //the cluster has an extra area aasworld.clusters[clusternum].numareas++; area = &aasworld.areas[areanum]; //use area faces to flood into adjacent areas if (!nofaceflood) { for (i = 0; i < area->numfaces; i++) { facenum = abs(aasworld.faceindex[area->firstface + i]); face = &aasworld.faces[facenum]; if (face->frontarea == areanum) { if (face->backarea) if (!AAS_FloodClusterAreas_r(face->backarea, clusternum)) return qfalse; } //end if else { if (face->frontarea) if (!AAS_FloodClusterAreas_r(face->frontarea, clusternum)) return qfalse; } //end else } //end for } //end if //use the reachabilities to flood into other areas for (i = 0; i < aasworld.areasettings[areanum].numreachableareas; i++) { if (!aasworld.reachability[ aasworld.areasettings[areanum].firstreachablearea + i].areanum) { continue; } //end if if (!AAS_FloodClusterAreas_r(aasworld.reachability[ aasworld.areasettings[areanum].firstreachablearea + i].areanum, clusternum)) return qfalse; } //end for return qtrue; } //end of the function AAS_FloodClusterAreas_r //=========================================================================== // try to flood from all areas without cluster into areas with a cluster set // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_FloodClusterAreasUsingReachabilities(int clusternum) { int i, j, areanum; for (i = 1; i < aasworld.numareas; i++) { //if this area already has a cluster set if (aasworld.areasettings[i].cluster) continue; //if this area is a cluster portal if (aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL) continue; //loop over the reachable areas from this area for (j = 0; j < aasworld.areasettings[i].numreachableareas; j++) { //the reachable area areanum = aasworld.reachability[aasworld.areasettings[i].firstreachablearea + j].areanum; //if this area is a cluster portal if (aasworld.areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL) continue; //if this area has a cluster set if (aasworld.areasettings[areanum].cluster) { if (!AAS_FloodClusterAreas_r(i, clusternum)) return qfalse; i = 0; break; } //end if } //end for } //end for return qtrue; } //end of the function AAS_FloodClusterAreasUsingReachabilities //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_NumberClusterPortals(int clusternum) { int i, portalnum; aas_cluster_t *cluster; aas_portal_t *portal; cluster = &aasworld.clusters[clusternum]; for (i = 0; i < cluster->numportals; i++) { portalnum = aasworld.portalindex[cluster->firstportal + i]; portal = &aasworld.portals[portalnum]; if (portal->frontcluster == clusternum) { portal->clusterareanum[0] = cluster->numareas++; } //end if else { portal->clusterareanum[1] = cluster->numareas++; } //end else } //end for } //end of the function AAS_NumberClusterPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_NumberClusterAreas(int clusternum) { int i, portalnum; aas_cluster_t *cluster; aas_portal_t *portal; aasworld.clusters[clusternum].numareas = 0; aasworld.clusters[clusternum].numreachabilityareas = 0; //number all areas in this cluster WITH reachabilities for (i = 1; i < aasworld.numareas; i++) { // if (aasworld.areasettings[i].cluster != clusternum) continue; // if (!AAS_AreaReachability(i)) continue; // aasworld.areasettings[i].clusterareanum = aasworld.clusters[clusternum].numareas; //the cluster has an extra area aasworld.clusters[clusternum].numareas++; aasworld.clusters[clusternum].numreachabilityareas++; } //end for //number all portals in this cluster WITH reachabilities cluster = &aasworld.clusters[clusternum]; for (i = 0; i < cluster->numportals; i++) { portalnum = aasworld.portalindex[cluster->firstportal + i]; portal = &aasworld.portals[portalnum]; if (!AAS_AreaReachability(portal->areanum)) continue; if (portal->frontcluster == clusternum) { portal->clusterareanum[0] = cluster->numareas++; aasworld.clusters[clusternum].numreachabilityareas++; } //end if else { portal->clusterareanum[1] = cluster->numareas++; aasworld.clusters[clusternum].numreachabilityareas++; } //end else } //end for //number all areas in this cluster WITHOUT reachabilities for (i = 1; i < aasworld.numareas; i++) { // if (aasworld.areasettings[i].cluster != clusternum) continue; // if (AAS_AreaReachability(i)) continue; // aasworld.areasettings[i].clusterareanum = aasworld.clusters[clusternum].numareas; //the cluster has an extra area aasworld.clusters[clusternum].numareas++; } //end for //number all portals in this cluster WITHOUT reachabilities cluster = &aasworld.clusters[clusternum]; for (i = 0; i < cluster->numportals; i++) { portalnum = aasworld.portalindex[cluster->firstportal + i]; portal = &aasworld.portals[portalnum]; if (AAS_AreaReachability(portal->areanum)) continue; if (portal->frontcluster == clusternum) { portal->clusterareanum[0] = cluster->numareas++; } //end if else { portal->clusterareanum[1] = cluster->numareas++; } //end else } //end for } //end of the function AAS_NumberClusterAreas //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_FindClusters(void) { int i; aas_cluster_t *cluster; AAS_RemoveClusterAreas(); // for (i = 1; i < aasworld.numareas; i++) { //if the area is already part of a cluster if (aasworld.areasettings[i].cluster) continue; // if not flooding through faces only use areas that have reachabilities if (nofaceflood) { if (!aasworld.areasettings[i].numreachableareas) continue; } //end if //if the area is a cluster portal if (aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL) continue; if (aasworld.numclusters >= AAS_MAX_CLUSTERS) { AAS_Error("AAS_MAX_CLUSTERS"); return qfalse; } //end if cluster = &aasworld.clusters[aasworld.numclusters]; cluster->numareas = 0; cluster->numreachabilityareas = 0; cluster->firstportal = aasworld.portalindexsize; cluster->numportals = 0; //flood the areas in this cluster if (!AAS_FloodClusterAreas_r(i, aasworld.numclusters)) return qfalse; if (!AAS_FloodClusterAreasUsingReachabilities(aasworld.numclusters)) return qfalse; //number the cluster areas //AAS_NumberClusterPortals(aasworld.numclusters); AAS_NumberClusterAreas(aasworld.numclusters); //Log_Write("cluster %d has %d areas\r\n", aasworld.numclusters, cluster->numareas); aasworld.numclusters++; } //end for return qtrue; } //end of the function AAS_FindClusters //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_CreatePortals(void) { int i; aas_portal_t *portal; for (i = 1; i < aasworld.numareas; i++) { //if the area is a cluster portal if (aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL) { if (aasworld.numportals >= AAS_MAX_PORTALS) { AAS_Error("AAS_MAX_PORTALS"); return; } //end if portal = &aasworld.portals[aasworld.numportals]; portal->areanum = i; portal->frontcluster = 0; portal->backcluster = 0; aasworld.numportals++; } //end if } //end for } //end of the function AAS_CreatePortals /* //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_MapContainsTeleporters(void) { bsp_entity_t *entities, *ent; char *classname; entities = AAS_ParseBSPEntities(); for (ent = entities; ent; ent = ent->next) { classname = AAS_ValueForBSPEpairKey(ent, "classname"); if (classname && !strcmp(classname, "misc_teleporter")) { AAS_FreeBSPEntities(entities); return qtrue; } //end if } //end for return qfalse; } //end of the function AAS_MapContainsTeleporters //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_NonConvexFaces(aas_face_t *face1, aas_face_t *face2, int side1, int side2) { int i, j, edgenum; aas_plane_t *plane1, *plane2; aas_edge_t *edge; plane1 = &aasworld.planes[face1->planenum ^ side1]; plane2 = &aasworld.planes[face2->planenum ^ side2]; //check if one of the points of face1 is at the back of the plane of face2 for (i = 0; i < face1->numedges; i++) { edgenum = abs(aasworld.edgeindex[face1->firstedge + i]); edge = &aasworld.edges[edgenum]; for (j = 0; j < 2; j++) { if (DotProduct(plane2->normal, aasworld.vertexes[edge->v[j]]) - plane2->dist < -0.01) return qtrue; } //end for } //end for for (i = 0; i < face2->numedges; i++) { edgenum = abs(aasworld.edgeindex[face2->firstedge + i]); edge = &aasworld.edges[edgenum]; for (j = 0; j < 2; j++) { if (DotProduct(plane1->normal, aasworld.vertexes[edge->v[j]]) - plane1->dist < -0.01) return qtrue; } //end for } //end for return qfalse; } //end of the function AAS_NonConvexFaces //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== qboolean AAS_CanMergeAreas(int *areanums, int numareas) { int i, j, s, face1num, face2num, side1, side2, fn1, fn2; aas_face_t *face1, *face2; aas_area_t *area1, *area2; for (i = 0; i < numareas; i++) { area1 = &aasworld.areas[areanums[i]]; for (fn1 = 0; fn1 < area1->numfaces; fn1++) { face1num = abs(aasworld.faceindex[area1->firstface + fn1]); face1 = &aasworld.faces[face1num]; side1 = face1->frontarea != areanums[i]; //check if the face isn't a shared one with one of the other areas for (s = 0; s < numareas; s++) { if (s == i) continue; if (face1->frontarea == s || face1->backarea == s) break; } //end for //if the face was a shared one if (s != numareas) continue; // for (j = 0; j < numareas; j++) { if (j == i) continue; area2 = &aasworld.areas[areanums[j]]; for (fn2 = 0; fn2 < area2->numfaces; fn2++) { face2num = abs(aasworld.faceindex[area2->firstface + fn2]); face2 = &aasworld.faces[face2num]; side2 = face2->frontarea != areanums[j]; //check if the face isn't a shared one with one of the other areas for (s = 0; s < numareas; s++) { if (s == j) continue; if (face2->frontarea == s || face2->backarea == s) break; } //end for //if the face was a shared one if (s != numareas) continue; // if (AAS_NonConvexFaces(face1, face2, side1, side2)) return qfalse; } //end for } //end for } //end for } //end for return qtrue; } //end of the function AAS_CanMergeAreas //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== qboolean AAS_NonConvexEdges(aas_edge_t *edge1, aas_edge_t *edge2, int side1, int side2, int planenum) { int i; vec3_t edgevec1, edgevec2, normal1, normal2; float dist1, dist2; aas_plane_t *plane; plane = &aasworld.planes[planenum]; VectorSubtract(aasworld.vertexes[edge1->v[1]], aasworld.vertexes[edge1->v[0]], edgevec1); VectorSubtract(aasworld.vertexes[edge2->v[1]], aasworld.vertexes[edge2->v[0]], edgevec2); if (side1) VectorInverse(edgevec1); if (side2) VectorInverse(edgevec2); // CrossProduct(edgevec1, plane->normal, normal1); dist1 = DotProduct(normal1, aasworld.vertexes[edge1->v[0]]); CrossProduct(edgevec2, plane->normal, normal2); dist2 = DotProduct(normal2, aasworld.vertexes[edge2->v[0]]); for (i = 0; i < 2; i++) { if (DotProduct(aasworld.vertexes[edge1->v[i]], normal2) - dist2 < -0.01) return qfalse; } //end for for (i = 0; i < 2; i++) { if (DotProduct(aasworld.vertexes[edge2->v[i]], normal1) - dist1 < -0.01) return qfalse; } //end for return qtrue; } //end of the function AAS_NonConvexEdges //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== qboolean AAS_CanMergeFaces(int *facenums, int numfaces, int planenum) { int i, j, s, edgenum1, edgenum2, side1, side2, en1, en2, ens; aas_face_t *face1, *face2, *otherface; aas_edge_t *edge1, *edge2; for (i = 0; i < numfaces; i++) { face1 = &aasworld.faces[facenums[i]]; for (en1 = 0; en1 < face1->numedges; en1++) { edgenum1 = aasworld.edgeindex[face1->firstedge + en1]; side1 = (edgenum1 < 0) ^ (face1->planenum != planenum); edgenum1 = abs(edgenum1); edge1 = &aasworld.edges[edgenum1]; //check if the edge is shared with another face for (s = 0; s < numfaces; s++) { if (s == i) continue; otherface = &aasworld.faces[facenums[s]]; for (ens = 0; ens < otherface->numedges; ens++) { if (edgenum1 == abs(aasworld.edgeindex[otherface->firstedge + ens])) break; } //end for if (ens != otherface->numedges) break; } //end for //if the edge was shared if (s != numfaces) continue; // for (j = 0; j < numfaces; j++) { if (j == i) continue; face2 = &aasworld.faces[facenums[j]]; for (en2 = 0; en2 < face2->numedges; en2++) { edgenum2 = aasworld.edgeindex[face2->firstedge + en2]; side2 = (edgenum2 < 0) ^ (face2->planenum != planenum); edgenum2 = abs(edgenum2); edge2 = &aasworld.edges[edgenum2]; //check if the edge is shared with another face for (s = 0; s < numfaces; s++) { if (s == i) continue; otherface = &aasworld.faces[facenums[s]]; for (ens = 0; ens < otherface->numedges; ens++) { if (edgenum2 == abs(aasworld.edgeindex[otherface->firstedge + ens])) break; } //end for if (ens != otherface->numedges) break; } //end for //if the edge was shared if (s != numfaces) continue; // if (AAS_NonConvexEdges(edge1, edge2, side1, side2, planenum)) return qfalse; } //end for } //end for } //end for } //end for return qtrue; } //end of the function AAS_CanMergeFaces*/ //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_ConnectedAreas_r(int *areanums, int numareas, int *connectedareas, int curarea) { int i, j, otherareanum, facenum; aas_area_t *area; aas_face_t *face; connectedareas[curarea] = qtrue; area = &aasworld.areas[areanums[curarea]]; for (i = 0; i < area->numfaces; i++) { facenum = abs(aasworld.faceindex[area->firstface + i]); face = &aasworld.faces[facenum]; //if the face is solid if (face->faceflags & FACE_SOLID) continue; //get the area at the other side of the face if (face->frontarea != areanums[curarea]) otherareanum = face->frontarea; else otherareanum = face->backarea; //check if the face is leading to one of the other areas for (j = 0; j < numareas; j++) { if (areanums[j] == otherareanum) break; } //end for //if the face isn't leading to one of the other areas if (j == numareas) continue; //if the other area is already connected if (connectedareas[j]) continue; //recursively proceed with the other area AAS_ConnectedAreas_r(areanums, numareas, connectedareas, j); } //end for } //end of the function AAS_ConnectedAreas_r //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== qboolean AAS_ConnectedAreas(int *areanums, int numareas) { int connectedareas[MAX_PORTALAREAS], i; Com_Memset(connectedareas, 0, sizeof(connectedareas)); if (numareas < 1) return qfalse; if (numareas == 1) return qtrue; AAS_ConnectedAreas_r(areanums, numareas, connectedareas, 0); for (i = 0; i < numareas; i++) { if (!connectedareas[i]) return qfalse; } //end for return qtrue; } //end of the function AAS_ConnectedAreas //=========================================================================== // gets adjacent areas with less presence types recursively // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_GetAdjacentAreasWithLessPresenceTypes_r(int *areanums, int numareas, int curareanum) { int i, j, presencetype, otherpresencetype, otherareanum, facenum; aas_area_t *area; aas_face_t *face; areanums[numareas++] = curareanum; area = &aasworld.areas[curareanum]; presencetype = aasworld.areasettings[curareanum].presencetype; for (i = 0; i < area->numfaces; i++) { facenum = abs(aasworld.faceindex[area->firstface + i]); face = &aasworld.faces[facenum]; //if the face is solid if (face->faceflags & FACE_SOLID) continue; //the area at the other side of the face if (face->frontarea != curareanum) otherareanum = face->frontarea; else otherareanum = face->backarea; // otherpresencetype = aasworld.areasettings[otherareanum].presencetype; //if the other area has less presence types if ((presencetype & ~otherpresencetype) && !(otherpresencetype & ~presencetype)) { //check if the other area isn't already in the list for (j = 0; j < numareas; j++) { if (otherareanum == areanums[j]) break; } //end for //if the other area isn't already in the list if (j == numareas) { if (numareas >= MAX_PORTALAREAS) { AAS_Error("MAX_PORTALAREAS"); return numareas; } //end if numareas = AAS_GetAdjacentAreasWithLessPresenceTypes_r(areanums, numareas, otherareanum); } //end if } //end if } //end for return numareas; } //end of the function AAS_GetAdjacentAreasWithLessPresenceTypes_r //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_CheckAreaForPossiblePortals(int areanum) { int i, j, k, fen, ben, frontedgenum, backedgenum, facenum; int areanums[MAX_PORTALAREAS], numareas, otherareanum; int numareafrontfaces[MAX_PORTALAREAS], numareabackfaces[MAX_PORTALAREAS]; int frontfacenums[MAX_PORTALAREAS], backfacenums[MAX_PORTALAREAS]; int numfrontfaces, numbackfaces; int frontareanums[MAX_PORTALAREAS], backareanums[MAX_PORTALAREAS]; int numfrontareas, numbackareas; int frontplanenum, backplanenum, faceplanenum; aas_area_t *area; aas_face_t *frontface, *backface, *face; //if it isn't already a portal if (aasworld.areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL) return 0; //it must be a grounded area if (!(aasworld.areasettings[areanum].areaflags & AREA_GROUNDED)) return 0; // Com_Memset(numareafrontfaces, 0, sizeof(numareafrontfaces)); Com_Memset(numareabackfaces, 0, sizeof(numareabackfaces)); numareas = numfrontfaces = numbackfaces = 0; numfrontareas = numbackareas = 0; frontplanenum = backplanenum = -1; //add any adjacent areas with less presence types numareas = AAS_GetAdjacentAreasWithLessPresenceTypes_r(areanums, 0, areanum); // for (i = 0; i < numareas; i++) { area = &aasworld.areas[areanums[i]]; for (j = 0; j < area->numfaces; j++) { facenum = abs(aasworld.faceindex[area->firstface + j]); face = &aasworld.faces[facenum]; //if the face is solid if (face->faceflags & FACE_SOLID) continue; //check if the face is shared with one of the other areas for (k = 0; k < numareas; k++) { if (k == i) continue; if (face->frontarea == areanums[k] || face->backarea == areanums[k]) break; } //end for //if the face is shared if (k != numareas) continue; //the number of the area at the other side of the face if (face->frontarea == areanums[i]) otherareanum = face->backarea; else otherareanum = face->frontarea; //if the other area already is a cluter portal if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) return 0; //number of the plane of the area faceplanenum = face->planenum & ~1; // if (frontplanenum < 0 || faceplanenum == frontplanenum) { frontplanenum = faceplanenum; frontfacenums[numfrontfaces++] = facenum; for (k = 0; k < numfrontareas; k++) { if (frontareanums[k] == otherareanum) break; } //end for if (k == numfrontareas) frontareanums[numfrontareas++] = otherareanum; numareafrontfaces[i]++; } //end if else if (backplanenum < 0 || faceplanenum == backplanenum) { backplanenum = faceplanenum; backfacenums[numbackfaces++] = facenum; for (k = 0; k < numbackareas; k++) { if (backareanums[k] == otherareanum) break; } //end for if (k == numbackareas) backareanums[numbackareas++] = otherareanum; numareabackfaces[i]++; } //end else else { return 0; } //end else } //end for } //end for //every area should have at least one front face and one back face for (i = 0; i < numareas; i++) { if (!numareafrontfaces[i] || !numareabackfaces[i]) return 0; } //end for //the front areas should all be connected if (!AAS_ConnectedAreas(frontareanums, numfrontareas)) return 0; //the back areas should all be connected if (!AAS_ConnectedAreas(backareanums, numbackareas)) return 0; //none of the front faces should have a shared edge with a back face for (i = 0; i < numfrontfaces; i++) { frontface = &aasworld.faces[frontfacenums[i]]; for (fen = 0; fen < frontface->numedges; fen++) { frontedgenum = abs(aasworld.edgeindex[frontface->firstedge + fen]); for (j = 0; j < numbackfaces; j++) { backface = &aasworld.faces[backfacenums[j]]; for (ben = 0; ben < backface->numedges; ben++) { backedgenum = abs(aasworld.edgeindex[backface->firstedge + ben]); if (frontedgenum == backedgenum) break; } //end for if (ben != backface->numedges) break; } //end for if (j != numbackfaces) break; } //end for if (fen != frontface->numedges) break; } //end for if (i != numfrontfaces) return 0; //set the cluster portal contents for (i = 0; i < numareas; i++) { aasworld.areasettings[areanums[i]].contents |= AREACONTENTS_CLUSTERPORTAL; //this area can be used as a route portal aasworld.areasettings[areanums[i]].contents |= AREACONTENTS_ROUTEPORTAL; Log_Write("possible portal: %d\r\n", areanums[i]); } //end for // return numareas; } //end of the function AAS_CheckAreaForPossiblePortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_FindPossiblePortals(void) { int i, numpossibleportals; numpossibleportals = 0; for (i = 1; i < aasworld.numareas; i++) { numpossibleportals += AAS_CheckAreaForPossiblePortals(i); } //end for botimport.Print(PRT_MESSAGE, "\r%6d possible portal areas\n", numpossibleportals); } //end of the function AAS_FindPossiblePortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_RemoveAllPortals(void) { int i; for (i = 1; i < aasworld.numareas; i++) { aasworld.areasettings[i].contents &= ~AREACONTENTS_CLUSTERPORTAL; } //end for } //end of the function AAS_RemoveAllPortals #if 0 //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_FloodCluster_r(int areanum, int clusternum) { int i, otherareanum; aas_face_t *face; aas_area_t *area; //set cluster mark aasworld.areasettings[areanum].cluster = clusternum; //if the area is a portal //if (aasworld.areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL) return; // area = &aasworld.areas[areanum]; //use area faces to flood into adjacent areas for (i = 0; i < area->numfaces; i++) { face = &aasworld.faces[abs(aasworld.faceindex[area->firstface + i])]; // if (face->frontarea != areanum) otherareanum = face->frontarea; else otherareanum = face->backarea; //if there's no area at the other side if (!otherareanum) continue; //if the area is a portal if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) continue; //if the area is already marked if (aasworld.areasettings[otherareanum].cluster) continue; // AAS_FloodCluster_r(otherareanum, clusternum); } //end for //use the reachabilities to flood into other areas for (i = 0; i < aasworld.areasettings[areanum].numreachableareas; i++) { otherareanum = aasworld.reachability[ aasworld.areasettings[areanum].firstreachablearea + i].areanum; if (!otherareanum) { continue; AAS_Error("reachability %d has zero area\n", aasworld.areasettings[areanum].firstreachablearea + i); } //end if //if the area is a portal if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) continue; //if the area is already marked if (aasworld.areasettings[otherareanum].cluster) continue; // AAS_FloodCluster_r(otherareanum, clusternum); } //end for } //end of the function AAS_FloodCluster_r //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_RemoveTeleporterPortals(void) { int i, j, areanum; for (i = 1; i < aasworld.numareas; i++) { for (j = 0; j < aasworld.areasettings[i].numreachableareas; j++) { areanum = aasworld.reachability[aasworld.areasettings[i].firstreachablearea + j].areanum; if (aasworld.reachability[aasworld.areasettings[i].firstreachablearea + j].traveltype == TRAVEL_TELEPORT) { aasworld.areasettings[i].contents &= ~AREACONTENTS_CLUSTERPORTAL; aasworld.areasettings[areanum].contents &= ~AREACONTENTS_CLUSTERPORTAL; break; } //end if } //end for } //end for } //end of the function AAS_RemoveTeleporterPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_FloodClusterReachabilities(int clusternum) { int i, j, areanum; for (i = 1; i < aasworld.numareas; i++) { //if this area already has a cluster set if (aasworld.areasettings[i].cluster) continue; //if this area is a cluster portal if (aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL) continue; //loop over the reachable areas from this area for (j = 0; j < aasworld.areasettings[i].numreachableareas; j++) { //the reachable area areanum = aasworld.reachability[aasworld.areasettings[i].firstreachablearea + j].areanum; //if this area is a cluster portal if (aasworld.areasettings[areanum].contents & AREACONTENTS_CLUSTERPORTAL) continue; //if this area has a cluster set if (aasworld.areasettings[areanum].cluster == clusternum) { AAS_FloodCluster_r(i, clusternum); i = 0; break; } //end if } //end for } //end for } //end of the function AAS_FloodClusterReachabilities //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_RemoveNotClusterClosingPortals(void) { int i, j, k, facenum, otherareanum, nonclosingportals; aas_area_t *area; aas_face_t *face; AAS_RemoveTeleporterPortals(); // nonclosingportals = 0; for (i = 1; i < aasworld.numareas; i++) { if (!(aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL)) continue; //find a non-portal area adjacent to the portal area and flood //the cluster from there area = &aasworld.areas[i]; for (j = 0; j < area->numfaces; j++) { facenum = abs(aasworld.faceindex[area->firstface + j]); face = &aasworld.faces[facenum]; // if (face->frontarea != i) otherareanum = face->frontarea; else otherareanum = face->backarea; // if (!otherareanum) continue; // if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) { continue; } //end if //reset all cluster fields AAS_RemoveClusterAreas(); // AAS_FloodCluster_r(otherareanum, 1); AAS_FloodClusterReachabilities(1); //check if all adjacent non-portal areas have a cluster set for (k = 0; k < area->numfaces; k++) { facenum = abs(aasworld.faceindex[area->firstface + k]); face = &aasworld.faces[facenum]; // if (face->frontarea != i) otherareanum = face->frontarea; else otherareanum = face->backarea; // if (!otherareanum) continue; // if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) { continue; } //end if // if (!aasworld.areasettings[otherareanum].cluster) break; } //end for //if all adjacent non-portal areas have a cluster set then the portal //didn't seal a cluster if (k >= area->numfaces) { aasworld.areasettings[i].contents &= ~AREACONTENTS_CLUSTERPORTAL; nonclosingportals++; //recheck all the other portals again i = 0; break; } //end if } //end for } //end for botimport.Print(PRT_MESSAGE, "\r%6d non closing portals removed\n", nonclosingportals); } //end of the function AAS_RemoveNotClusterClosingPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_RemoveNotClusterClosingPortals(void) { int i, j, facenum, otherareanum, nonclosingportals, numseperatedclusters; aas_area_t *area; aas_face_t *face; AAS_RemoveTeleporterPortals(); // nonclosingportals = 0; for (i = 1; i < aasworld.numareas; i++) { if (!(aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL)) continue; // numseperatedclusters = 0; //reset all cluster fields AAS_RemoveClusterAreas(); //find a non-portal area adjacent to the portal area and flood //the cluster from there area = &aasworld.areas[i]; for (j = 0; j < area->numfaces; j++) { facenum = abs(aasworld.faceindex[area->firstface + j]); face = &aasworld.faces[facenum]; // if (face->frontarea != i) otherareanum = face->frontarea; else otherareanum = face->backarea; //if not solid at the other side of the face if (!otherareanum) continue; //don't flood into other portals if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) continue; //if the area already has a cluster set if (aasworld.areasettings[otherareanum].cluster) continue; //another cluster is seperated by this portal numseperatedclusters++; //flood the cluster AAS_FloodCluster_r(otherareanum, numseperatedclusters); AAS_FloodClusterReachabilities(numseperatedclusters); } //end for //use the reachabilities to flood into other areas for (j = 0; j < aasworld.areasettings[i].numreachableareas; j++) { otherareanum = aasworld.reachability[ aasworld.areasettings[i].firstreachablearea + j].areanum; //this should never be qtrue but we check anyway if (!otherareanum) continue; //don't flood into other portals if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) continue; //if the area already has a cluster set if (aasworld.areasettings[otherareanum].cluster) continue; //another cluster is seperated by this portal numseperatedclusters++; //flood the cluster AAS_FloodCluster_r(otherareanum, numseperatedclusters); AAS_FloodClusterReachabilities(numseperatedclusters); } //end for //a portal must seperate no more and no less than 2 clusters if (numseperatedclusters != 2) { aasworld.areasettings[i].contents &= ~AREACONTENTS_CLUSTERPORTAL; nonclosingportals++; //recheck all the other portals again i = 0; } //end if } //end for botimport.Print(PRT_MESSAGE, "\r%6d non closing portals removed\n", nonclosingportals); } //end of the function AAS_RemoveNotClusterClosingPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_AddTeleporterPortals(void) { int j, area2num, facenum, otherareanum; char *target, *targetname, *classname; bsp_entity_t *entities, *ent, *dest; vec3_t origin, destorigin, mins, maxs, end; vec3_t bbmins, bbmaxs; aas_area_t *area; aas_face_t *face; aas_trace_t trace; aas_link_t *areas, *link; entities = AAS_ParseBSPEntities(); for (ent = entities; ent; ent = ent->next) { classname = AAS_ValueForBSPEpairKey(ent, "classname"); if (classname && !strcmp(classname, "misc_teleporter")) { if (!AAS_VectorForBSPEpairKey(ent, "origin", origin)) { botimport.Print(PRT_ERROR, "teleporter (%s) without origin\n", target); continue; } //end if // target = AAS_ValueForBSPEpairKey(ent, "target"); if (!target) { botimport.Print(PRT_ERROR, "teleporter (%s) without target\n", target); continue; } //end if for (dest = entities; dest; dest = dest->next) { classname = AAS_ValueForBSPEpairKey(dest, "classname"); if (classname && !strcmp(classname, "misc_teleporter_dest")) { targetname = AAS_ValueForBSPEpairKey(dest, "targetname"); if (targetname && !strcmp(targetname, target)) { break; } //end if } //end if } //end for if (!dest) { botimport.Print(PRT_ERROR, "teleporter without destination (%s)\n", target); continue; } //end if if (!AAS_VectorForBSPEpairKey(dest, "origin", destorigin)) { botimport.Print(PRT_ERROR, "teleporter destination (%s) without origin\n", target); continue; } //end if destorigin[2] += 24; //just for q2e1m2, the dork has put the telepads in the ground VectorCopy(destorigin, end); end[2] -= 100; trace = AAS_TraceClientBBox(destorigin, end, PRESENCE_CROUCH, -1); if (trace.startsolid) { botimport.Print(PRT_ERROR, "teleporter destination (%s) in solid\n", target); continue; } //end if VectorCopy(trace.endpos, destorigin); area2num = AAS_PointAreaNum(destorigin); //reset all cluster fields for (j = 0; j < aasworld.numareas; j++) { aasworld.areasettings[j].cluster = 0; } //end for // VectorSet(mins, -8, -8, 8); VectorSet(maxs, 8, 8, 24); // AAS_PresenceTypeBoundingBox(PRESENCE_CROUCH, bbmins, bbmaxs); // VectorAdd(origin, mins, mins); VectorAdd(origin, maxs, maxs); //add bounding box size VectorSubtract(mins, bbmaxs, mins); VectorSubtract(maxs, bbmins, maxs); //link an invalid (-1) entity areas = AAS_AASLinkEntity(mins, maxs, -1); // for (link = areas; link; link = link->next_area) { if (!AAS_AreaGrounded(link->areanum)) continue; //add the teleporter portal mark aasworld.areasettings[link->areanum].contents |= AREACONTENTS_CLUSTERPORTAL | AREACONTENTS_TELEPORTAL; } //end for // for (link = areas; link; link = link->next_area) { if (!AAS_AreaGrounded(link->areanum)) continue; //find a non-portal area adjacent to the portal area and flood //the cluster from there area = &aasworld.areas[link->areanum]; for (j = 0; j < area->numfaces; j++) { facenum = abs(aasworld.faceindex[area->firstface + j]); face = &aasworld.faces[facenum]; // if (face->frontarea != link->areanum) otherareanum = face->frontarea; else otherareanum = face->backarea; // if (!otherareanum) continue; // if (aasworld.areasettings[otherareanum].contents & AREACONTENTS_CLUSTERPORTAL) { continue; } //end if // AAS_FloodCluster_r(otherareanum, 1); } //end for } //end for //if the teleport destination IS in the same cluster if (aasworld.areasettings[area2num].cluster) { for (link = areas; link; link = link->next_area) { if (!AAS_AreaGrounded(link->areanum)) continue; //add the teleporter portal mark aasworld.areasettings[link->areanum].contents &= ~(AREACONTENTS_CLUSTERPORTAL | AREACONTENTS_TELEPORTAL); } //end for } //end if } //end if } //end for AAS_FreeBSPEntities(entities); } //end of the function AAS_AddTeleporterPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_AddTeleporterPortals(void) { int i, j, areanum; for (i = 1; i < aasworld.numareas; i++) { for (j = 0; j < aasworld.areasettings[i].numreachableareas; j++) { if (aasworld.reachability[aasworld.areasettings[i].firstreachablearea + j].traveltype != TRAVEL_TELEPORT) continue; areanum = aasworld.reachability[aasworld.areasettings[i].firstreachablearea + j].areanum; aasworld.areasettings[areanum].contents |= AREACONTENTS_CLUSTERPORTAL; } //end for } //end for } //end of the function AAS_AddTeleporterPortals #endif //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== int AAS_TestPortals(void) { int i; aas_portal_t *portal; for (i = 1; i < aasworld.numportals; i++) { portal = &aasworld.portals[i]; if (!portal->frontcluster) { aasworld.areasettings[portal->areanum].contents &= ~AREACONTENTS_CLUSTERPORTAL; Log_Write("portal area %d has no front cluster\r\n", portal->areanum); return qfalse; } //end if if (!portal->backcluster) { aasworld.areasettings[portal->areanum].contents &= ~AREACONTENTS_CLUSTERPORTAL; Log_Write("portal area %d has no back cluster\r\n", portal->areanum); return qfalse; } //end if } //end for return qtrue; } //end of the function //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_CountForcedClusterPortals(void) { int num, i; num = 0; for (i = 1; i < aasworld.numareas; i++) { if (aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL) { Log_Write("area %d is a forced portal area\r\n", i); num++; } //end if } //end for botimport.Print(PRT_MESSAGE, "%6d forced portal areas\n", num); } //end of the function AAS_CountForcedClusterPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_CreateViewPortals(void) { int i; for (i = 1; i < aasworld.numareas; i++) { if (aasworld.areasettings[i].contents & AREACONTENTS_CLUSTERPORTAL) { aasworld.areasettings[i].contents |= AREACONTENTS_VIEWPORTAL; } //end if } //end for } //end of the function AAS_CreateViewPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_SetViewPortalsAsClusterPortals(void) { int i; for (i = 1; i < aasworld.numareas; i++) { if (aasworld.areasettings[i].contents & AREACONTENTS_VIEWPORTAL) { aasworld.areasettings[i].contents |= AREACONTENTS_CLUSTERPORTAL; } //end if } //end for } //end of the function AAS_SetViewPortalsAsClusterPortals //=========================================================================== // // Parameter: - // Returns: - // Changes Globals: - //=========================================================================== void AAS_InitClustering(void) { int i, removedPortalAreas; int n, total, numreachabilityareas; if (!aasworld.loaded) return; //if there are clusters if (aasworld.numclusters >= 1) { #ifndef BSPC //if clustering isn't forced if (!((int)LibVarGetValue("forceclustering")) && !((int)LibVarGetValue("forcereachability"))) return; #endif } //end if //set all view portals as cluster portals in case we re-calculate the reachabilities and clusters (with -reach) AAS_SetViewPortalsAsClusterPortals(); //count the number of forced cluster portals AAS_CountForcedClusterPortals(); //remove all area cluster marks AAS_RemoveClusterAreas(); //find possible cluster portals AAS_FindPossiblePortals(); //craete portals to for the bot view AAS_CreateViewPortals(); //remove all portals that are not closing a cluster //AAS_RemoveNotClusterClosingPortals(); //initialize portal memory if (aasworld.portals) FreeMemory(aasworld.portals); aasworld.portals = (aas_portal_t *) GetClearedMemory(AAS_MAX_PORTALS * sizeof(aas_portal_t)); //initialize portal index memory if (aasworld.portalindex) FreeMemory(aasworld.portalindex); aasworld.portalindex = (aas_portalindex_t *) GetClearedMemory(AAS_MAX_PORTALINDEXSIZE * sizeof(aas_portalindex_t)); //initialize cluster memory if (aasworld.clusters) FreeMemory(aasworld.clusters); aasworld.clusters = (aas_cluster_t *) GetClearedMemory(AAS_MAX_CLUSTERS * sizeof(aas_cluster_t)); // removedPortalAreas = 0; botimport.Print(PRT_MESSAGE, "\r%6d removed portal areas", removedPortalAreas); while(1) { botimport.Print(PRT_MESSAGE, "\r%6d", removedPortalAreas); //initialize the number of portals and clusters aasworld.numportals = 1; //portal 0 is a dummy aasworld.portalindexsize = 0; aasworld.numclusters = 1; //cluster 0 is a dummy //create the portals from the portal areas AAS_CreatePortals(); // removedPortalAreas++; //find the clusters if (!AAS_FindClusters()) continue; //test the portals if (!AAS_TestPortals()) continue; // break; } //end while botimport.Print(PRT_MESSAGE, "\n"); //the AAS file should be saved aasworld.savefile = qtrue; //write the portal areas to the log file for (i = 1; i < aasworld.numportals; i++) { Log_Write("portal %d: area %d\r\n", i, aasworld.portals[i].areanum); } //end for // report cluster info botimport.Print(PRT_MESSAGE, "%6d portals created\n", aasworld.numportals); botimport.Print(PRT_MESSAGE, "%6d clusters created\n", aasworld.numclusters); for (i = 1; i < aasworld.numclusters; i++) { botimport.Print(PRT_MESSAGE, "cluster %d has %d reachability areas\n", i, aasworld.clusters[i].numreachabilityareas); } //end for // report AAS file efficiency numreachabilityareas = 0; total = 0; for (i = 0; i < aasworld.numclusters; i++) { n = aasworld.clusters[i].numreachabilityareas; numreachabilityareas += n; total += n * n; } total += numreachabilityareas * aasworld.numportals; // botimport.Print(PRT_MESSAGE, "%6i total reachability areas\n", numreachabilityareas); botimport.Print(PRT_MESSAGE, "%6i AAS memory/CPU usage (the lower the better)\n", total * 3); } //end of the function AAS_InitClustering