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/*
* PathfinderUtil.h, part of VCMI engine
*
* Authors: listed in file AUTHORS in main folder
*
* License: GNU General Public License v2.0 or later
* Full text of license available in license.txt file, in main folder
*
*/
#pragma once
#include "mapping/CMapDefines.h"
#include "CGameState.h"
namespace PathfinderUtil
{
using FoW = std::vector<std::vector<std::vector<ui8> > >;
using ELayer = EPathfindingLayer;
template<EPathfindingLayer::EEPathfindingLayer layer>
CGPathNode::EAccessibility evaluateAccessibility(const int3 & pos, const TerrainTile * tinfo, const FoW & fow, const PlayerColor player, const CGameState * gs)
{
if(!fow[pos.x][pos.y][pos.z])
return CGPathNode::BLOCKED;
switch(layer)
{
case ELayer::LAND:
case ELayer::SAIL:
if(tinfo->visitable)
{
if(tinfo->visitableObjects.front()->ID == Obj::SANCTUARY && tinfo->visitableObjects.back()->ID == Obj::HERO && tinfo->visitableObjects.back()->tempOwner != player) //non-owned hero stands on Sanctuary
{
return CGPathNode::BLOCKED;
}
else
{
for(const CGObjectInstance * obj : tinfo->visitableObjects)
{
if(obj->blockVisit)
return CGPathNode::BLOCKVIS;
else if(obj->passableFor(player))
return CGPathNode::ACCESSIBLE;
else if(obj->ID != Obj::EVENT)
return CGPathNode::VISITABLE;
}
}
}
else if(tinfo->blocked)
{
return CGPathNode::BLOCKED;
}
else if(gs->guardingCreaturePosition(pos).valid())
{
// Monster close by; blocked visit for battle
return CGPathNode::BLOCKVIS;
}
break;
case ELayer::WATER:
if(tinfo->blocked || tinfo->terType != ETerrainType::WATER)
return CGPathNode::BLOCKED;
break;
case ELayer::AIR:
if(tinfo->blocked || tinfo->terType == ETerrainType::WATER)
return CGPathNode::FLYABLE;
break;
}
return CGPathNode::ACCESSIBLE;
}
}
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