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91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
/*
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* PathfinderUtil.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#include "../TerrainHandler.h"
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#include "../mapObjects/CGObjectInstance.h"
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#include "../mapping/CMapDefines.h"
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#include "../gameState/CGameState.h"
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#include "CGPathNode.h"
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VCMI_LIB_NAMESPACE_BEGIN
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namespace PathfinderUtil
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{
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using FoW = boost::multi_array<ui8, 3>;
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using ELayer = EPathfindingLayer;
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template<EPathfindingLayer::Type layer>
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EPathAccessibility evaluateAccessibility(const int3 & pos, const TerrainTile & tinfo, const FoW & fow, const PlayerColor player, const CGameState * gs)
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{
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if(!fow[pos.z][pos.x][pos.y])
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return EPathAccessibility::BLOCKED;
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switch(layer)
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{
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case ELayer::LAND:
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case ELayer::SAIL:
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if(tinfo.visitable())
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{
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if(tinfo.visitableObjects.front()->ID == Obj::SANCTUARY && tinfo.visitableObjects.back()->ID == Obj::HERO && tinfo.visitableObjects.back()->tempOwner != player) //non-owned hero stands on Sanctuary
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{
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return EPathAccessibility::BLOCKED;
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}
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else
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{
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bool hasBlockedVisitable = false;
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bool hasVisitable = false;
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for(const CGObjectInstance * obj : tinfo.visitableObjects)
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{
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if(obj->isBlockedVisitable())
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hasBlockedVisitable = true;
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else if(!obj->passableFor(player) && obj->ID != Obj::EVENT)
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hasVisitable = true;
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}
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if(hasBlockedVisitable)
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return EPathAccessibility::BLOCKVIS;
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if(hasVisitable)
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return EPathAccessibility::VISITABLE;
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return EPathAccessibility::ACCESSIBLE;
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}
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}
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else if(tinfo.blocked())
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{
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return EPathAccessibility::BLOCKED;
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}
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else if(gs->guardingCreaturePosition(pos).valid())
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{
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// Monster close by; blocked visit for battle
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return EPathAccessibility::GUARDED;
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}
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break;
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case ELayer::WATER:
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if(tinfo.blocked() || tinfo.isLand())
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return EPathAccessibility::BLOCKED;
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break;
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case ELayer::AIR:
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return EPathAccessibility::FLYABLE;
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break;
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}
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return EPathAccessibility::ACCESSIBLE;
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}
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}
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VCMI_LIB_NAMESPACE_END
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