/*
* AIPathfinder.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 "AINodeStorage.h"
#include "../AIUtility.h"

namespace NKAI
{

class Nullkiller;

struct PathfinderSettings
{
	bool useHeroChain;
	uint8_t scoutTurnDistanceLimit;
	uint8_t mainTurnDistanceLimit;

	PathfinderSettings()
		:useHeroChain(false),
		scoutTurnDistanceLimit(255),
		mainTurnDistanceLimit(255)
	{ }
};

class AIPathfinder
{
private:
	std::shared_ptr<AINodeStorage> storage;
	CPlayerSpecificInfoCallback * cb;
	Nullkiller * ai;

public:
	AIPathfinder(CPlayerSpecificInfoCallback * cb, Nullkiller * ai);
	std::vector<AIPath> getPathInfo(const int3 & tile) const;
	bool isTileAccessible(const HeroPtr & hero, const int3 & tile) const;
	void updatePaths(std::map<const CGHeroInstance *, HeroRole> heroes, PathfinderSettings pathfinderSettings);
	void init();
};

}