mirror of
https://github.com/dhewm/dhewm3.git
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1349 lines
36 KiB
C++
1349 lines
36 KiB
C++
/*
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===========================================================================
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Doom 3 GPL Source Code
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Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Doom 3 Source Code is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
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In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
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If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
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===========================================================================
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*/
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#include "../../idlib/precompiled.h"
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#pragma hdrstop
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#include "AAS_local.h"
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#include "../Game_local.h" // for print and error
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#define CACHETYPE_AREA 1
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#define CACHETYPE_PORTAL 2
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#define MAX_ROUTING_CACHE_MEMORY (2*1024*1024)
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#define LEDGE_TRAVELTIME_PANALTY 250
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/*
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============
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idRoutingCache::idRoutingCache
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============
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*/
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idRoutingCache::idRoutingCache( int size ) {
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areaNum = 0;
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cluster = 0;
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next = prev = NULL;
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time_next = time_prev = NULL;
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travelFlags = 0;
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startTravelTime = 0;
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type = 0;
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this->size = size;
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reachabilities = new byte[size];
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memset( reachabilities, 0, size * sizeof( reachabilities[0] ) );
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travelTimes = new unsigned short[size];
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memset( travelTimes, 0, size * sizeof( travelTimes[0] ) );
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}
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/*
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============
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idRoutingCache::~idRoutingCache
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============
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*/
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idRoutingCache::~idRoutingCache( void ) {
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delete [] reachabilities;
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delete [] travelTimes;
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}
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/*
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============
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idRoutingCache::Size
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============
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*/
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int idRoutingCache::Size( void ) const {
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return sizeof( idRoutingCache ) + size * sizeof( reachabilities[0] ) + size * sizeof( travelTimes[0] );
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}
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/*
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============
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idAASLocal::AreaTravelTime
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============
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*/
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unsigned short idAASLocal::AreaTravelTime( int areaNum, const idVec3 &start, const idVec3 &end ) const {
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float dist;
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dist = ( end - start ).Length();
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if ( file->GetArea( areaNum ).travelFlags & TFL_CROUCH ) {
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dist *= 100.0f / 100.0f;
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} else if ( file->GetArea( areaNum ).travelFlags & TFL_WATER ) {
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dist *= 100.0f / 150.0f;
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} else {
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dist *= 100.0f / 300.0f;
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}
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if ( dist < 1.0f ) {
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return 1;
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}
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return (unsigned short) idMath::FtoiFast( dist );
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}
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/*
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============
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idAASLocal::CalculateAreaTravelTimes
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============
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*/
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void idAASLocal::CalculateAreaTravelTimes(void) {
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int n, i, j, numReach, numRevReach, t, maxt;
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byte *bytePtr;
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idReachability *reach, *rev_reach;
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// get total memory for all area travel times
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numAreaTravelTimes = 0;
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for ( n = 0; n < file->GetNumAreas(); n++ ) {
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if ( !(file->GetArea( n ).flags & (AREA_REACHABLE_WALK|AREA_REACHABLE_FLY)) ) {
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continue;
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}
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numReach = 0;
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for ( reach = file->GetArea( n ).reach; reach; reach = reach->next ) {
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numReach++;
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}
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numRevReach = 0;
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for ( rev_reach = file->GetArea( n ).rev_reach; rev_reach; rev_reach = rev_reach->rev_next ) {
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numRevReach++;
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}
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numAreaTravelTimes += numReach * numRevReach;
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}
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areaTravelTimes = (unsigned short *) Mem_Alloc( numAreaTravelTimes * sizeof( unsigned short ) );
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bytePtr = (byte *) areaTravelTimes;
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for ( n = 0; n < file->GetNumAreas(); n++ ) {
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if ( !(file->GetArea( n ).flags & (AREA_REACHABLE_WALK|AREA_REACHABLE_FLY)) ) {
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continue;
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}
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// for each reachability that starts in this area calculate the travel time
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// towards all the reachabilities that lead towards this area
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for ( maxt = i = 0, reach = file->GetArea( n ).reach; reach; reach = reach->next, i++ ) {
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assert( i < MAX_REACH_PER_AREA );
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if ( i >= MAX_REACH_PER_AREA ) {
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gameLocal.Error( "i >= MAX_REACH_PER_AREA" );
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}
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reach->number = i;
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reach->disableCount = 0;
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reach->areaTravelTimes = (unsigned short *) bytePtr;
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for ( j = 0, rev_reach = file->GetArea( n ).rev_reach; rev_reach; rev_reach = rev_reach->rev_next, j++ ) {
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t = AreaTravelTime( n, reach->start, rev_reach->end );
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reach->areaTravelTimes[j] = t;
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if ( t > maxt ) {
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maxt = t;
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}
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}
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bytePtr += j * sizeof( unsigned short );
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}
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// if this area is a portal
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if ( file->GetArea( n ).cluster < 0 ) {
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// set the maximum travel time through this portal
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file->SetPortalMaxTravelTime( -file->GetArea( n ).cluster, maxt );
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}
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}
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assert( ( (ptrdiff_t) bytePtr - (ptrdiff_t) areaTravelTimes ) <= numAreaTravelTimes * sizeof( unsigned short ) );
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}
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/*
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============
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idAASLocal::DeleteAreaTravelTimes
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============
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*/
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void idAASLocal::DeleteAreaTravelTimes( void ) {
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Mem_Free( areaTravelTimes );
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areaTravelTimes = NULL;
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numAreaTravelTimes = 0;
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}
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/*
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============
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idAASLocal::SetupRoutingCache
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============
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*/
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void idAASLocal::SetupRoutingCache( void ) {
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int i;
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byte *bytePtr;
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areaCacheIndexSize = 0;
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for ( i = 0; i < file->GetNumClusters(); i++ ) {
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areaCacheIndexSize += file->GetCluster( i ).numReachableAreas;
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}
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areaCacheIndex = (idRoutingCache ***) Mem_ClearedAlloc( file->GetNumClusters() * sizeof( idRoutingCache ** ) +
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areaCacheIndexSize * sizeof( idRoutingCache *) );
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bytePtr = ((byte *)areaCacheIndex) + file->GetNumClusters() * sizeof( idRoutingCache ** );
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for ( i = 0; i < file->GetNumClusters(); i++ ) {
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areaCacheIndex[i] = ( idRoutingCache ** ) bytePtr;
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bytePtr += file->GetCluster( i ).numReachableAreas * sizeof( idRoutingCache * );
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}
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portalCacheIndexSize = file->GetNumAreas();
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portalCacheIndex = (idRoutingCache **) Mem_ClearedAlloc( portalCacheIndexSize * sizeof( idRoutingCache * ) );
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areaUpdate = (idRoutingUpdate *) Mem_ClearedAlloc( file->GetNumAreas() * sizeof( idRoutingUpdate ) );
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portalUpdate = (idRoutingUpdate *) Mem_ClearedAlloc( (file->GetNumPortals()+1) * sizeof( idRoutingUpdate ) );
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goalAreaTravelTimes = (unsigned short *) Mem_ClearedAlloc( file->GetNumAreas() * sizeof( unsigned short ) );
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cacheListStart = cacheListEnd = NULL;
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totalCacheMemory = 0;
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}
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/*
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============
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idAASLocal::DeleteClusterCache
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============
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*/
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void idAASLocal::DeleteClusterCache( int clusterNum ) {
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int i;
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idRoutingCache *cache;
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for ( i = 0; i < file->GetCluster( clusterNum ).numReachableAreas; i++ ) {
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for ( cache = areaCacheIndex[clusterNum][i]; cache; cache = areaCacheIndex[clusterNum][i] ) {
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areaCacheIndex[clusterNum][i] = cache->next;
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UnlinkCache( cache );
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delete cache;
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}
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}
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}
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/*
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============
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idAASLocal::DeletePortalCache
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============
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*/
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void idAASLocal::DeletePortalCache( void ) {
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int i;
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idRoutingCache *cache;
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for ( i = 0; i < file->GetNumAreas(); i++ ) {
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for ( cache = portalCacheIndex[i]; cache; cache = portalCacheIndex[i] ) {
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portalCacheIndex[i] = cache->next;
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UnlinkCache( cache );
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delete cache;
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}
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}
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}
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/*
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============
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idAASLocal::ShutdownRoutingCache
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============
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*/
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void idAASLocal::ShutdownRoutingCache( void ) {
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int i;
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for ( i = 0; i < file->GetNumClusters(); i++ ) {
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DeleteClusterCache( i );
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}
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DeletePortalCache();
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Mem_Free( areaCacheIndex );
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areaCacheIndex = NULL;
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areaCacheIndexSize = 0;
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Mem_Free( portalCacheIndex );
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portalCacheIndex = NULL;
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portalCacheIndexSize = 0;
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Mem_Free( areaUpdate );
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areaUpdate = NULL;
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Mem_Free( portalUpdate );
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portalUpdate = NULL;
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Mem_Free( goalAreaTravelTimes );
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goalAreaTravelTimes = NULL;
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cacheListStart = cacheListEnd = NULL;
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totalCacheMemory = 0;
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}
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/*
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============
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idAASLocal::SetupRouting
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============
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*/
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bool idAASLocal::SetupRouting( void ) {
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CalculateAreaTravelTimes();
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SetupRoutingCache();
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return true;
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}
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/*
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============
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idAASLocal::ShutdownRouting
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============
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*/
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void idAASLocal::ShutdownRouting( void ) {
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DeleteAreaTravelTimes();
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ShutdownRoutingCache();
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}
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/*
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============
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idAASLocal::RoutingStats
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============
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*/
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void idAASLocal::RoutingStats( void ) const {
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idRoutingCache *cache;
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int numAreaCache, numPortalCache;
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int totalAreaCacheMemory, totalPortalCacheMemory;
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numAreaCache = numPortalCache = 0;
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totalAreaCacheMemory = totalPortalCacheMemory = 0;
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for ( cache = cacheListStart; cache; cache = cache->time_next ) {
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if ( cache->type == CACHETYPE_AREA ) {
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numAreaCache++;
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totalAreaCacheMemory += sizeof( idRoutingCache ) + cache->size * (sizeof( unsigned short ) + sizeof( byte ));
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} else {
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numPortalCache++;
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totalPortalCacheMemory += sizeof( idRoutingCache ) + cache->size * (sizeof( unsigned short ) + sizeof( byte ));
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}
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}
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gameLocal.Printf( "%6d area cache (%d KB)\n", numAreaCache, totalAreaCacheMemory >> 10 );
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gameLocal.Printf( "%6d portal cache (%d KB)\n", numPortalCache, totalPortalCacheMemory >> 10 );
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gameLocal.Printf( "%6d total cache (%d KB)\n", numAreaCache + numPortalCache, totalCacheMemory >> 10 );
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gameLocal.Printf( "%6d area travel times (%zu KB)\n", numAreaTravelTimes, ( numAreaTravelTimes * sizeof( unsigned short ) ) >> 10 );
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gameLocal.Printf( "%6d area cache entries (%zu KB)\n", areaCacheIndexSize, ( areaCacheIndexSize * sizeof( idRoutingCache * ) ) >> 10 );
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gameLocal.Printf( "%6d portal cache entries (%zu KB)\n", portalCacheIndexSize, ( portalCacheIndexSize * sizeof( idRoutingCache * ) ) >> 10 );
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}
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/*
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============
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idAASLocal::RemoveRoutingCacheUsingArea
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============
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*/
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void idAASLocal::RemoveRoutingCacheUsingArea( int areaNum ) {
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int clusterNum;
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clusterNum = file->GetArea( areaNum ).cluster;
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if ( clusterNum > 0 ) {
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// remove all the cache in the cluster the area is in
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DeleteClusterCache( clusterNum );
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}
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else {
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// if this is a portal remove all cache in both the front and back cluster
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DeleteClusterCache( file->GetPortal( -clusterNum ).clusters[0] );
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DeleteClusterCache( file->GetPortal( -clusterNum ).clusters[1] );
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}
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DeletePortalCache();
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}
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/*
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============
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idAASLocal::DisableArea
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============
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*/
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void idAASLocal::DisableArea( int areaNum ) {
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assert( areaNum > 0 && areaNum < file->GetNumAreas() );
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if ( file->GetArea( areaNum ).travelFlags & TFL_INVALID ) {
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return;
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}
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file->SetAreaTravelFlag( areaNum, TFL_INVALID );
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RemoveRoutingCacheUsingArea( areaNum );
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}
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/*
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============
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idAASLocal::EnableArea
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============
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*/
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void idAASLocal::EnableArea( int areaNum ) {
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assert( areaNum > 0 && areaNum < file->GetNumAreas() );
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if ( !( file->GetArea( areaNum ).travelFlags & TFL_INVALID ) ) {
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return;
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}
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file->RemoveAreaTravelFlag( areaNum, TFL_INVALID );
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RemoveRoutingCacheUsingArea( areaNum );
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}
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/*
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============
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idAASLocal::SetAreaState_r
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============
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*/
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bool idAASLocal::SetAreaState_r( int nodeNum, const idBounds &bounds, const int areaContents, bool disabled ) {
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int res;
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const aasNode_t *node;
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bool foundClusterPortal = false;
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while( nodeNum != 0 ) {
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if ( nodeNum < 0 ) {
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// if this area is a cluster portal
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if ( file->GetArea( -nodeNum ).contents & areaContents ) {
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if ( disabled ) {
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DisableArea( -nodeNum );
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} else {
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EnableArea( -nodeNum );
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}
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foundClusterPortal |= true;
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}
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break;
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}
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node = &file->GetNode( nodeNum );
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res = bounds.PlaneSide( file->GetPlane( node->planeNum ) );
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if ( res == PLANESIDE_BACK ) {
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nodeNum = node->children[1];
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}
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else if ( res == PLANESIDE_FRONT ) {
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nodeNum = node->children[0];
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}
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else {
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foundClusterPortal |= SetAreaState_r( node->children[1], bounds, areaContents, disabled );
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nodeNum = node->children[0];
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}
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}
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return foundClusterPortal;
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}
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/*
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============
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idAASLocal::SetAreaState
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============
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*/
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bool idAASLocal::SetAreaState( const idBounds &bounds, const int areaContents, bool disabled ) {
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idBounds expBounds;
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if ( !file ) {
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return false;
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}
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expBounds[0] = bounds[0] - file->GetSettings().boundingBoxes[0][1];
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expBounds[1] = bounds[1] - file->GetSettings().boundingBoxes[0][0];
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// find all areas within or touching the bounds with the given contents and disable/enable them for routing
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return SetAreaState_r( 1, expBounds, areaContents, disabled );
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}
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/*
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============
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idAASLocal::GetBoundsAreas_r
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============
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*/
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void idAASLocal::GetBoundsAreas_r( int nodeNum, const idBounds &bounds, idList<int> &areas ) const {
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int res;
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const aasNode_t *node;
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while( nodeNum != 0 ) {
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if ( nodeNum < 0 ) {
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areas.Append( -nodeNum );
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break;
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}
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node = &file->GetNode( nodeNum );
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res = bounds.PlaneSide( file->GetPlane( node->planeNum ) );
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if ( res == PLANESIDE_BACK ) {
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nodeNum = node->children[1];
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}
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else if ( res == PLANESIDE_FRONT ) {
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nodeNum = node->children[0];
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}
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else {
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GetBoundsAreas_r( node->children[1], bounds, areas );
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nodeNum = node->children[0];
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}
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}
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}
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/*
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============
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idAASLocal::SetObstacleState
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============
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*/
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void idAASLocal::SetObstacleState( const idRoutingObstacle *obstacle, bool enable ) {
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int i;
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const aasArea_t *area;
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idReachability *reach, *rev_reach;
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bool inside;
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for ( i = 0; i < obstacle->areas.Num(); i++ ) {
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RemoveRoutingCacheUsingArea( obstacle->areas[i] );
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area = &file->GetArea( obstacle->areas[i] );
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for ( rev_reach = area->rev_reach; rev_reach; rev_reach = rev_reach->rev_next ) {
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if ( rev_reach->travelType & TFL_INVALID ) {
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continue;
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}
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inside = false;
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if ( obstacle->bounds.ContainsPoint( rev_reach->end ) ) {
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inside = true;
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}
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else {
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for ( reach = area->reach; reach; reach = reach->next ) {
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if ( obstacle->bounds.LineIntersection( rev_reach->end, reach->start ) ) {
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inside = true;
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break;
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}
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}
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}
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if ( inside ) {
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if ( enable ) {
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rev_reach->disableCount--;
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if ( rev_reach->disableCount <= 0 ) {
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rev_reach->travelType &= ~TFL_INVALID;
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rev_reach->disableCount = 0;
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}
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}
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else {
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rev_reach->travelType |= TFL_INVALID;
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rev_reach->disableCount++;
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}
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}
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}
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}
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}
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/*
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============
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idAASLocal::AddObstacle
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============
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*/
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aasHandle_t idAASLocal::AddObstacle( const idBounds &bounds ) {
|
|
idRoutingObstacle *obstacle;
|
|
|
|
if ( !file ) {
|
|
return -1;
|
|
}
|
|
|
|
obstacle = new idRoutingObstacle;
|
|
obstacle->bounds[0] = bounds[0] - file->GetSettings().boundingBoxes[0][1];
|
|
obstacle->bounds[1] = bounds[1] - file->GetSettings().boundingBoxes[0][0];
|
|
GetBoundsAreas_r( 1, obstacle->bounds, obstacle->areas );
|
|
SetObstacleState( obstacle, true );
|
|
|
|
obstacleList.Append( obstacle );
|
|
return obstacleList.Num() - 1;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::RemoveObstacle
|
|
============
|
|
*/
|
|
void idAASLocal::RemoveObstacle( const aasHandle_t handle ) {
|
|
if ( !file ) {
|
|
return;
|
|
}
|
|
if ( ( handle >= 0 ) && ( handle < obstacleList.Num() ) ) {
|
|
SetObstacleState( obstacleList[handle], false );
|
|
|
|
delete obstacleList[handle];
|
|
obstacleList.RemoveIndex( handle );
|
|
}
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::RemoveAllObstacles
|
|
============
|
|
*/
|
|
void idAASLocal::RemoveAllObstacles( void ) {
|
|
int i;
|
|
|
|
if ( !file ) {
|
|
return;
|
|
}
|
|
|
|
for ( i = 0; i < obstacleList.Num(); i++ ) {
|
|
SetObstacleState( obstacleList[i], false );
|
|
delete obstacleList[i];
|
|
}
|
|
obstacleList.Clear();
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::LinkCache
|
|
|
|
link the cache in the cache list sorted from oldest to newest cache
|
|
============
|
|
*/
|
|
void idAASLocal::LinkCache( idRoutingCache *cache ) const {
|
|
|
|
// if the cache is already linked
|
|
if ( cache->time_next || cache->time_prev || cacheListStart == cache ) {
|
|
UnlinkCache( cache );
|
|
}
|
|
|
|
totalCacheMemory += cache->Size();
|
|
|
|
// add cache to the end of the list
|
|
cache->time_next = NULL;
|
|
cache->time_prev = cacheListEnd;
|
|
if ( cacheListEnd ) {
|
|
cacheListEnd->time_next = cache;
|
|
}
|
|
cacheListEnd = cache;
|
|
if ( !cacheListStart ) {
|
|
cacheListStart = cache;
|
|
}
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::UnlinkCache
|
|
============
|
|
*/
|
|
void idAASLocal::UnlinkCache( idRoutingCache *cache ) const {
|
|
|
|
totalCacheMemory -= cache->Size();
|
|
|
|
// unlink the cache
|
|
if ( cache->time_next ) {
|
|
cache->time_next->time_prev = cache->time_prev;
|
|
} else {
|
|
cacheListEnd = cache->time_prev;
|
|
}
|
|
if ( cache->time_prev ) {
|
|
cache->time_prev->time_next = cache->time_next;
|
|
} else {
|
|
cacheListStart = cache->time_next;
|
|
}
|
|
cache->time_next = cache->time_prev = NULL;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::DeleteOldestCache
|
|
============
|
|
*/
|
|
void idAASLocal::DeleteOldestCache( void ) const {
|
|
idRoutingCache *cache;
|
|
|
|
assert( cacheListStart );
|
|
|
|
// unlink the oldest cache
|
|
cache = cacheListStart;
|
|
UnlinkCache( cache );
|
|
|
|
// unlink the oldest cache from the area or portal cache index
|
|
if ( cache->next ) {
|
|
cache->next->prev = cache->prev;
|
|
}
|
|
if ( cache->prev ) {
|
|
cache->prev->next = cache->next;
|
|
}
|
|
else if ( cache->type == CACHETYPE_AREA ) {
|
|
areaCacheIndex[cache->cluster][ClusterAreaNum( cache->cluster, cache->areaNum )] = cache->next;
|
|
}
|
|
else if ( cache->type == CACHETYPE_PORTAL ) {
|
|
portalCacheIndex[cache->areaNum] = cache->next;
|
|
}
|
|
|
|
delete cache;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::GetAreaReachability
|
|
============
|
|
*/
|
|
idReachability *idAASLocal::GetAreaReachability( int areaNum, int reachabilityNum ) const {
|
|
idReachability *reach;
|
|
|
|
for ( reach = file->GetArea( areaNum ).reach; reach; reach = reach->next ) {
|
|
if ( --reachabilityNum < 0 ) {
|
|
return reach;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::ClusterAreaNum
|
|
============
|
|
*/
|
|
ID_INLINE int idAASLocal::ClusterAreaNum( int clusterNum, int areaNum ) const {
|
|
int side, areaCluster;
|
|
|
|
areaCluster = file->GetArea( areaNum ).cluster;
|
|
if ( areaCluster > 0 ) {
|
|
return file->GetArea( areaNum ).clusterAreaNum;
|
|
}
|
|
else {
|
|
side = file->GetPortal( -areaCluster ).clusters[0] != clusterNum;
|
|
return file->GetPortal( -areaCluster ).clusterAreaNum[side];
|
|
}
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::UpdateAreaRoutingCache
|
|
============
|
|
*/
|
|
void idAASLocal::UpdateAreaRoutingCache( idRoutingCache *areaCache ) const {
|
|
int i, nextAreaNum, cluster, badTravelFlags, clusterAreaNum, numReachableAreas;
|
|
unsigned short t, startAreaTravelTimes[MAX_REACH_PER_AREA];
|
|
idRoutingUpdate *updateListStart, *updateListEnd, *curUpdate, *nextUpdate;
|
|
idReachability *reach;
|
|
const aasArea_t *nextArea;
|
|
|
|
// number of reachability areas within this cluster
|
|
numReachableAreas = file->GetCluster( areaCache->cluster ).numReachableAreas;
|
|
|
|
// number of the start area within the cluster
|
|
clusterAreaNum = ClusterAreaNum( areaCache->cluster, areaCache->areaNum );
|
|
if ( clusterAreaNum >= numReachableAreas ) {
|
|
return;
|
|
}
|
|
|
|
areaCache->travelTimes[clusterAreaNum] = areaCache->startTravelTime;
|
|
badTravelFlags = ~areaCache->travelFlags;
|
|
memset( startAreaTravelTimes, 0, sizeof( startAreaTravelTimes ) );
|
|
|
|
// initialize first update
|
|
curUpdate = &areaUpdate[clusterAreaNum];
|
|
curUpdate->areaNum = areaCache->areaNum;
|
|
curUpdate->areaTravelTimes = startAreaTravelTimes;
|
|
curUpdate->tmpTravelTime = areaCache->startTravelTime;
|
|
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->isInList = false;
|
|
|
|
for ( i = 0, reach = file->GetArea( curUpdate->areaNum ).rev_reach; reach; reach = reach->rev_next, i++ ) {
|
|
|
|
// if the reachability uses an undesired travel type
|
|
if ( reach->travelType & badTravelFlags ) {
|
|
continue;
|
|
}
|
|
|
|
// next area the reversed reachability leads to
|
|
nextAreaNum = reach->fromAreaNum;
|
|
nextArea = &file->GetArea( nextAreaNum );
|
|
|
|
// if traveling through the next area requires an undesired travel flag
|
|
if ( nextArea->travelFlags & badTravelFlags ) {
|
|
continue;
|
|
}
|
|
|
|
// get the cluster number of the area
|
|
cluster = nextArea->cluster;
|
|
// don't leave the cluster, however do flood into cluster portals
|
|
if ( cluster > 0 && cluster != areaCache->cluster ) {
|
|
continue;
|
|
}
|
|
|
|
// get the number of the area in the cluster
|
|
clusterAreaNum = ClusterAreaNum( areaCache->cluster, nextAreaNum );
|
|
if ( clusterAreaNum >= numReachableAreas ) {
|
|
continue; // should never happen
|
|
}
|
|
|
|
assert( clusterAreaNum < areaCache->size );
|
|
|
|
// time already travelled plus the traveltime through the current area
|
|
// plus the travel time of the reachability towards the next area
|
|
t = curUpdate->tmpTravelTime + curUpdate->areaTravelTimes[i] + reach->travelTime;
|
|
|
|
if ( !areaCache->travelTimes[clusterAreaNum] || t < areaCache->travelTimes[clusterAreaNum] ) {
|
|
|
|
areaCache->travelTimes[clusterAreaNum] = t;
|
|
areaCache->reachabilities[clusterAreaNum] = reach->number; // reversed reachability used to get into this area
|
|
nextUpdate = &areaUpdate[clusterAreaNum];
|
|
nextUpdate->areaNum = nextAreaNum;
|
|
nextUpdate->tmpTravelTime = t;
|
|
nextUpdate->areaTravelTimes = reach->areaTravelTimes;
|
|
|
|
// if we are not allowed to fly
|
|
if ( badTravelFlags & TFL_FLY ) {
|
|
// avoid areas near ledges
|
|
if ( file->GetArea( nextAreaNum ).flags & AREA_LEDGE ) {
|
|
nextUpdate->tmpTravelTime += LEDGE_TRAVELTIME_PANALTY;
|
|
}
|
|
}
|
|
|
|
if ( !nextUpdate->isInList ) {
|
|
nextUpdate->next = NULL;
|
|
nextUpdate->prev = updateListEnd;
|
|
if ( updateListEnd ) {
|
|
updateListEnd->next = nextUpdate;
|
|
}
|
|
else {
|
|
updateListStart = nextUpdate;
|
|
}
|
|
updateListEnd = nextUpdate;
|
|
nextUpdate->isInList = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::GetAreaRoutingCache
|
|
============
|
|
*/
|
|
idRoutingCache *idAASLocal::GetAreaRoutingCache( int clusterNum, int areaNum, int travelFlags ) const {
|
|
int clusterAreaNum;
|
|
idRoutingCache *cache, *clusterCache;
|
|
|
|
// number of the area in the cluster
|
|
clusterAreaNum = ClusterAreaNum( clusterNum, areaNum );
|
|
// pointer to the cache for the area in the cluster
|
|
clusterCache = areaCacheIndex[clusterNum][clusterAreaNum];
|
|
// check if cache without undesired travel flags already exists
|
|
for ( cache = clusterCache; cache; cache = cache->next ) {
|
|
if ( cache->travelFlags == travelFlags ) {
|
|
break;
|
|
}
|
|
}
|
|
// if no cache found
|
|
if ( !cache ) {
|
|
cache = new idRoutingCache( file->GetCluster( clusterNum ).numReachableAreas );
|
|
cache->type = CACHETYPE_AREA;
|
|
cache->cluster = clusterNum;
|
|
cache->areaNum = areaNum;
|
|
cache->startTravelTime = 1;
|
|
cache->travelFlags = travelFlags;
|
|
cache->prev = NULL;
|
|
cache->next = clusterCache;
|
|
if ( clusterCache ) {
|
|
clusterCache->prev = cache;
|
|
}
|
|
areaCacheIndex[clusterNum][clusterAreaNum] = cache;
|
|
UpdateAreaRoutingCache( cache );
|
|
}
|
|
LinkCache( cache );
|
|
return cache;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::UpdatePortalRoutingCache
|
|
============
|
|
*/
|
|
void idAASLocal::UpdatePortalRoutingCache( idRoutingCache *portalCache ) const {
|
|
int i, portalNum, clusterAreaNum;
|
|
unsigned short t;
|
|
const aasPortal_t *portal;
|
|
const aasCluster_t *cluster;
|
|
idRoutingCache *cache;
|
|
idRoutingUpdate *updateListStart, *updateListEnd, *curUpdate, *nextUpdate;
|
|
|
|
curUpdate = &portalUpdate[ file->GetNumPortals() ];
|
|
curUpdate->cluster = portalCache->cluster;
|
|
curUpdate->areaNum = portalCache->areaNum;
|
|
curUpdate->tmpTravelTime = portalCache->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;
|
|
// 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->isInList = false;
|
|
|
|
cluster = &file->GetCluster( curUpdate->cluster );
|
|
cache = GetAreaRoutingCache( curUpdate->cluster, curUpdate->areaNum, portalCache->travelFlags );
|
|
|
|
// take all portals of the cluster
|
|
for ( i = 0; i < cluster->numPortals; i++ ) {
|
|
portalNum = file->GetPortalIndex( cluster->firstPortal + i );
|
|
assert( portalNum < portalCache->size );
|
|
portal = &file->GetPortal( portalNum );
|
|
|
|
clusterAreaNum = ClusterAreaNum( curUpdate->cluster, portal->areaNum );
|
|
if ( clusterAreaNum >= cluster->numReachableAreas ) {
|
|
continue;
|
|
}
|
|
|
|
t = cache->travelTimes[clusterAreaNum];
|
|
if ( t == 0 ) {
|
|
continue;
|
|
}
|
|
t += curUpdate->tmpTravelTime;
|
|
|
|
if ( !portalCache->travelTimes[portalNum] || t < portalCache->travelTimes[portalNum] ) {
|
|
|
|
portalCache->travelTimes[portalNum] = t;
|
|
portalCache->reachabilities[portalNum] = cache->reachabilities[clusterAreaNum];
|
|
nextUpdate = &portalUpdate[portalNum];
|
|
if ( portal->clusters[0] == curUpdate->cluster ) {
|
|
nextUpdate->cluster = portal->clusters[1];
|
|
}
|
|
else {
|
|
nextUpdate->cluster = portal->clusters[0];
|
|
}
|
|
nextUpdate->areaNum = portal->areaNum;
|
|
// add travel time through the actual portal area for the next update
|
|
nextUpdate->tmpTravelTime = t + portal->maxAreaTravelTime;
|
|
|
|
if ( !nextUpdate->isInList ) {
|
|
|
|
nextUpdate->next = NULL;
|
|
nextUpdate->prev = updateListEnd;
|
|
if ( updateListEnd ) {
|
|
updateListEnd->next = nextUpdate;
|
|
}
|
|
else {
|
|
updateListStart = nextUpdate;
|
|
}
|
|
updateListEnd = nextUpdate;
|
|
nextUpdate->isInList = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::GetPortalRoutingCache
|
|
============
|
|
*/
|
|
idRoutingCache *idAASLocal::GetPortalRoutingCache( int clusterNum, int areaNum, int travelFlags ) const {
|
|
idRoutingCache *cache;
|
|
|
|
// check if cache without undesired travel flags already exists
|
|
for ( cache = portalCacheIndex[areaNum]; cache; cache = cache->next ) {
|
|
if ( cache->travelFlags == travelFlags ) {
|
|
break;
|
|
}
|
|
}
|
|
// if no cache found
|
|
if ( !cache ) {
|
|
cache = new idRoutingCache( file->GetNumPortals() );
|
|
cache->type = CACHETYPE_PORTAL;
|
|
cache->cluster = clusterNum;
|
|
cache->areaNum = areaNum;
|
|
cache->startTravelTime = 1;
|
|
cache->travelFlags = travelFlags;
|
|
cache->prev = NULL;
|
|
cache->next = portalCacheIndex[areaNum];
|
|
if ( portalCacheIndex[areaNum] ) {
|
|
portalCacheIndex[areaNum]->prev = cache;
|
|
}
|
|
portalCacheIndex[areaNum] = cache;
|
|
UpdatePortalRoutingCache( cache );
|
|
}
|
|
LinkCache( cache );
|
|
return cache;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::RouteToGoalArea
|
|
============
|
|
*/
|
|
bool idAASLocal::RouteToGoalArea( int areaNum, const idVec3 origin, int goalAreaNum, int travelFlags, int &travelTime, idReachability **reach ) const {
|
|
int clusterNum, goalClusterNum, portalNum, i, clusterAreaNum;
|
|
unsigned short int t, bestTime;
|
|
const aasPortal_t *portal;
|
|
const aasCluster_t *cluster;
|
|
idRoutingCache *areaCache, *portalCache, *clusterCache;
|
|
idReachability *bestReach, *r, *nextr;
|
|
|
|
travelTime = 0;
|
|
*reach = NULL;
|
|
|
|
if ( !file ) {
|
|
return false;
|
|
}
|
|
|
|
if ( areaNum == goalAreaNum ) {
|
|
return true;
|
|
}
|
|
|
|
if ( areaNum <= 0 || areaNum >= file->GetNumAreas() ) {
|
|
gameLocal.Printf( "RouteToGoalArea: areaNum %d out of range\n", areaNum );
|
|
return false;
|
|
}
|
|
if ( goalAreaNum <= 0 || goalAreaNum >= file->GetNumAreas() ) {
|
|
gameLocal.Printf( "RouteToGoalArea: goalAreaNum %d out of range\n", goalAreaNum );
|
|
return false;
|
|
}
|
|
|
|
while( totalCacheMemory > MAX_ROUTING_CACHE_MEMORY ) {
|
|
DeleteOldestCache();
|
|
}
|
|
|
|
clusterNum = file->GetArea( areaNum ).cluster;
|
|
goalClusterNum = file->GetArea( goalAreaNum ).cluster;
|
|
|
|
// if the source area is a cluster portal, read directly from the portal cache
|
|
if ( clusterNum < 0 ) {
|
|
// if the goal area is a portal
|
|
if ( goalClusterNum < 0 ) {
|
|
// just assume the goal area is part of the front cluster
|
|
portal = &file->GetPortal( -goalClusterNum );
|
|
goalClusterNum = portal->clusters[0];
|
|
}
|
|
// get the portal routing cache
|
|
portalCache = GetPortalRoutingCache( goalClusterNum, goalAreaNum, travelFlags );
|
|
*reach = GetAreaReachability( areaNum, portalCache->reachabilities[-clusterNum] );
|
|
travelTime = portalCache->travelTimes[-clusterNum] + AreaTravelTime( areaNum, origin, (*reach)->start );
|
|
return true;
|
|
}
|
|
|
|
bestTime = 0;
|
|
bestReach = NULL;
|
|
|
|
// check if the goal area is a portal of the source area cluster
|
|
if ( goalClusterNum < 0 ) {
|
|
portal = &file->GetPortal( -goalClusterNum );
|
|
if ( portal->clusters[0] == clusterNum || portal->clusters[1] == clusterNum) {
|
|
goalClusterNum = clusterNum;
|
|
}
|
|
}
|
|
|
|
// if both areas are in the same cluster
|
|
if ( clusterNum > 0 && goalClusterNum > 0 && clusterNum == goalClusterNum ) {
|
|
clusterCache = GetAreaRoutingCache( clusterNum, goalAreaNum, travelFlags );
|
|
clusterAreaNum = ClusterAreaNum( clusterNum, areaNum );
|
|
if ( clusterCache->travelTimes[clusterAreaNum] ) {
|
|
bestReach = GetAreaReachability( areaNum, clusterCache->reachabilities[clusterAreaNum] );
|
|
bestTime = clusterCache->travelTimes[clusterAreaNum] + AreaTravelTime( areaNum, origin, bestReach->start );
|
|
}
|
|
else {
|
|
clusterCache = NULL;
|
|
}
|
|
}
|
|
else {
|
|
clusterCache = NULL;
|
|
}
|
|
|
|
clusterNum = file->GetArea( areaNum ).cluster;
|
|
goalClusterNum = file->GetArea( goalAreaNum ).cluster;
|
|
|
|
// if the goal area is a portal
|
|
if ( goalClusterNum < 0 ) {
|
|
// just assume the goal area is part of the front cluster
|
|
portal = &file->GetPortal( -goalClusterNum );
|
|
goalClusterNum = portal->clusters[0];
|
|
}
|
|
// get the portal routing cache
|
|
portalCache = GetPortalRoutingCache( goalClusterNum, goalAreaNum, travelFlags );
|
|
|
|
// the cluster the area is in
|
|
cluster = &file->GetCluster( clusterNum );
|
|
// current area inside the current cluster
|
|
clusterAreaNum = ClusterAreaNum( clusterNum, areaNum );
|
|
// if the area is not a reachable area
|
|
if ( clusterAreaNum >= cluster->numReachableAreas) {
|
|
return false;
|
|
}
|
|
|
|
// find the portal of the source area cluster leading towards the goal area
|
|
for ( i = 0; i < cluster->numPortals; i++ ) {
|
|
portalNum = file->GetPortalIndex( cluster->firstPortal + i );
|
|
|
|
// if the goal area isn't reachable from the portal
|
|
if ( !portalCache->travelTimes[portalNum] ) {
|
|
continue;
|
|
}
|
|
|
|
portal = &file->GetPortal( portalNum );
|
|
// get the cache of the portal area
|
|
areaCache = GetAreaRoutingCache( clusterNum, portal->areaNum, travelFlags );
|
|
// if the portal is not reachable from this area
|
|
if ( !areaCache->travelTimes[clusterAreaNum] ) {
|
|
continue;
|
|
}
|
|
|
|
r = GetAreaReachability( areaNum, areaCache->reachabilities[clusterAreaNum] );
|
|
|
|
if ( clusterCache ) {
|
|
// if the next reachability from the portal leads back into the cluster
|
|
nextr = GetAreaReachability( portal->areaNum, portalCache->reachabilities[portalNum] );
|
|
if ( file->GetArea( nextr->toAreaNum ).cluster < 0 || file->GetArea( nextr->toAreaNum ).cluster == clusterNum ) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
// the total travel time is the travel time from the portal area to the goal area
|
|
// plus the travel time from the source area towards the portal area
|
|
t = portalCache->travelTimes[portalNum] + areaCache->travelTimes[clusterAreaNum];
|
|
// NOTE: Should add the exact travel time through the portal area.
|
|
// However we add the largest travel time through the portal area.
|
|
// We cannot directly calculate the exact travel time through the portal area
|
|
// because the reachability used to travel into the portal area is not known.
|
|
t += portal->maxAreaTravelTime;
|
|
|
|
// if the time is better than the one already found
|
|
if ( !bestTime || t < bestTime ) {
|
|
bestReach = r;
|
|
bestTime = t;
|
|
}
|
|
}
|
|
|
|
if ( !bestReach ) {
|
|
return false;
|
|
}
|
|
|
|
*reach = bestReach;
|
|
travelTime = bestTime;
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::TravelTimeToGoalArea
|
|
============
|
|
*/
|
|
int idAASLocal::TravelTimeToGoalArea( int areaNum, const idVec3 &origin, int goalAreaNum, int travelFlags ) const {
|
|
int travelTime;
|
|
idReachability *reach;
|
|
|
|
if ( !file ) {
|
|
return 0;
|
|
}
|
|
|
|
if ( !RouteToGoalArea( areaNum, origin, goalAreaNum, travelFlags, travelTime, &reach ) ) {
|
|
return 0;
|
|
}
|
|
return travelTime;
|
|
}
|
|
|
|
/*
|
|
============
|
|
idAASLocal::FindNearestGoal
|
|
============
|
|
*/
|
|
bool idAASLocal::FindNearestGoal( aasGoal_t &goal, int areaNum, const idVec3 origin, const idVec3 &target, int travelFlags, aasObstacle_t *obstacles, int numObstacles, idAASCallback &callback ) const {
|
|
int i, j, k, badTravelFlags, nextAreaNum, bestAreaNum;
|
|
unsigned short t, bestTravelTime;
|
|
idRoutingUpdate *updateListStart, *updateListEnd, *curUpdate, *nextUpdate;
|
|
idReachability *reach;
|
|
const aasArea_t *nextArea;
|
|
idVec3 v1, v2, p;
|
|
float targetDist, dist;
|
|
|
|
if ( file == NULL || areaNum <= 0 ) {
|
|
goal.areaNum = areaNum;
|
|
goal.origin = origin;
|
|
return false;
|
|
}
|
|
|
|
// if the first area is valid goal, just return the origin
|
|
if ( callback.TestArea( this, areaNum ) ) {
|
|
goal.areaNum = areaNum;
|
|
goal.origin = origin;
|
|
return true;
|
|
}
|
|
|
|
// setup obstacles
|
|
for ( k = 0; k < numObstacles; k++ ) {
|
|
obstacles[k].expAbsBounds[0] = obstacles[k].absBounds[0] - file->GetSettings().boundingBoxes[0][1];
|
|
obstacles[k].expAbsBounds[1] = obstacles[k].absBounds[1] - file->GetSettings().boundingBoxes[0][0];
|
|
}
|
|
|
|
badTravelFlags = ~travelFlags;
|
|
SIMDProcessor->Memset( goalAreaTravelTimes, 0, file->GetNumAreas() * sizeof( unsigned short ) );
|
|
|
|
targetDist = (target - origin).Length();
|
|
|
|
// initialize first update
|
|
curUpdate = &areaUpdate[areaNum];
|
|
curUpdate->areaNum = areaNum;
|
|
curUpdate->tmpTravelTime = 0;
|
|
curUpdate->start = origin;
|
|
curUpdate->next = NULL;
|
|
curUpdate->prev = NULL;
|
|
updateListStart = curUpdate;
|
|
updateListEnd = curUpdate;
|
|
|
|
bestTravelTime = 0;
|
|
bestAreaNum = 0;
|
|
|
|
// 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->isInList = false;
|
|
|
|
// if we already found a closer location
|
|
if ( bestTravelTime && curUpdate->tmpTravelTime >= bestTravelTime ) {
|
|
continue;
|
|
}
|
|
|
|
for ( i = 0, reach = file->GetArea( curUpdate->areaNum ).reach; reach; reach = reach->next, i++ ) {
|
|
|
|
// if the reachability uses an undesired travel type
|
|
if ( reach->travelType & badTravelFlags ) {
|
|
continue;
|
|
}
|
|
|
|
// next area the reversed reachability leads to
|
|
nextAreaNum = reach->toAreaNum;
|
|
nextArea = &file->GetArea( nextAreaNum );
|
|
|
|
// if traveling through the next area requires an undesired travel flag
|
|
if ( nextArea->travelFlags & badTravelFlags ) {
|
|
continue;
|
|
}
|
|
|
|
t = curUpdate->tmpTravelTime +
|
|
AreaTravelTime( curUpdate->areaNum, curUpdate->start, reach->start ) +
|
|
reach->travelTime;
|
|
|
|
// project target origin onto movement vector through the area
|
|
v1 = reach->end - curUpdate->start;
|
|
v1.Normalize();
|
|
v2 = target - curUpdate->start;
|
|
p = curUpdate->start + (v2 * v1) * v1;
|
|
|
|
// get the point on the path closest to the target
|
|
for ( j = 0; j < 3; j++ ) {
|
|
if ( (p[j] > curUpdate->start[j] + 0.1f && p[j] > reach->end[j] + 0.1f) ||
|
|
(p[j] < curUpdate->start[j] - 0.1f && p[j] < reach->end[j] - 0.1f) ) {
|
|
break;
|
|
}
|
|
}
|
|
if ( j >= 3 ) {
|
|
dist = (target - p).Length();
|
|
} else {
|
|
dist = (target - reach->end).Length();
|
|
}
|
|
|
|
// avoid moving closer to the target
|
|
if ( dist < targetDist ) {
|
|
t += ( targetDist - dist ) * 10;
|
|
}
|
|
|
|
// if we already found a closer location
|
|
if ( bestTravelTime && t >= bestTravelTime ) {
|
|
continue;
|
|
}
|
|
|
|
// if this is not the best path towards the next area
|
|
if ( goalAreaTravelTimes[nextAreaNum] && t >= goalAreaTravelTimes[nextAreaNum] ) {
|
|
continue;
|
|
}
|
|
|
|
// path may not go through any obstacles
|
|
for ( k = 0; k < numObstacles; k++ ) {
|
|
// if the movement vector intersects the expanded obstacle bounds
|
|
if ( obstacles[k].expAbsBounds.LineIntersection( curUpdate->start, reach->end ) ) {
|
|
break;
|
|
}
|
|
}
|
|
if ( k < numObstacles ) {
|
|
continue;
|
|
}
|
|
|
|
goalAreaTravelTimes[nextAreaNum] = t;
|
|
nextUpdate = &areaUpdate[nextAreaNum];
|
|
nextUpdate->areaNum = nextAreaNum;
|
|
nextUpdate->tmpTravelTime = t;
|
|
nextUpdate->start = reach->end;
|
|
|
|
// if we are not allowed to fly
|
|
if ( badTravelFlags & TFL_FLY ) {
|
|
// avoid areas near ledges
|
|
if ( file->GetArea( nextAreaNum ).flags & AREA_LEDGE ) {
|
|
nextUpdate->tmpTravelTime += LEDGE_TRAVELTIME_PANALTY;
|
|
}
|
|
}
|
|
|
|
if ( !nextUpdate->isInList ) {
|
|
nextUpdate->next = NULL;
|
|
nextUpdate->prev = updateListEnd;
|
|
if ( updateListEnd ) {
|
|
updateListEnd->next = nextUpdate;
|
|
} else {
|
|
updateListStart = nextUpdate;
|
|
}
|
|
updateListEnd = nextUpdate;
|
|
nextUpdate->isInList = true;
|
|
}
|
|
|
|
// don't put goal near a ledge
|
|
if ( !( nextArea->flags & AREA_LEDGE ) ) {
|
|
|
|
// add travel time through the area
|
|
t += AreaTravelTime( reach->toAreaNum, reach->end, nextArea->center );
|
|
|
|
if ( !bestTravelTime || t < bestTravelTime ) {
|
|
// if the area is not visible to the target
|
|
if ( callback.TestArea( this, reach->toAreaNum ) ) {
|
|
bestTravelTime = t;
|
|
bestAreaNum = reach->toAreaNum;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if ( bestAreaNum ) {
|
|
goal.areaNum = bestAreaNum;
|
|
goal.origin = AreaCenter( bestAreaNum );
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|