1
0
mirror of https://github.com/vcmi/vcmi.git synced 2024-12-04 09:42:40 +02:00
vcmi/lib/PathfinderUtil.h

83 lines
1.9 KiB
C
Raw Normal View History

/*
* 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 "TerrainHandler.h"
#include "mapObjects/CObjectHandler.h"
#include "mapping/CMapDefines.h"
#include "CGameState.h"
VCMI_LIB_NAMESPACE_BEGIN
namespace PathfinderUtil
{
using FoW = std::shared_ptr<const boost::multi_array<ui8, 3>>;
using ELayer = EPathfindingLayer;
template<EPathfindingLayer::EEPathfindingLayer layer>
CGPathNode::EAccessibility evaluateAccessibility(const int3 & pos, const TerrainTile & tinfo, FoW fow, const PlayerColor player, const CGameState * gs)
{
if(!(*fow)[pos.z][pos.x][pos.y])
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->isLand())
return CGPathNode::BLOCKED;
break;
case ELayer::AIR:
if(tinfo.blocked || tinfo.terType->isLand())
return CGPathNode::FLYABLE;
break;
}
return CGPathNode::ACCESSIBLE;
}
}
VCMI_LIB_NAMESPACE_END