/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 * This code is based on the CRAB engine
 *
 * Copyright (c) Arvind Raja Yadav
 *
 * Licensed under MIT
 *
 */

#ifndef CRAB_SPRITEAI_H
#define CRAB_SPRITEAI_H

#include "crab/ai/movement.h"
#include "crab/PathfindingAgent.h"

namespace Crab {

// class PathfindingAgent;
namespace pyrodactyl {
namespace ai {

// States of a fighting sprite
enum AIFightState {
	FIGHTSTATE_GETNEXTMOVE,
	FIGHTSTATE_GETINRANGE,
	FIGHTSTATE_EXECUTEMOVE,
	FIGHTSTATE_CANTFIGHT
};

// States of a fleeing sprite
enum AIFleeState {
	FLEESTATE_GETNEARESTEXIT,
	FLEESTATE_RUNTOEXIT,
	FLEESTATE_DISAPPEAR,
	FLEESTATE_CANTFLEE
};

struct SpriteAIData {
	// Data required for fighting
	struct FightData {
		// The state of the sprite
		AIFightState _state;

		// Used to count down the time NPCs wait before their next move
		// Usually varies per move which is why we don't load target for it
		Timer _delay;

		// The list of moves that can be performed while attacking
		Common::Array<uint> _attack;

		FightData() {
			_state = FIGHTSTATE_GETNEXTMOVE;
		}
	} _fight;

	// The pattern a peaceful sprite walks in
	MovementSet _walk;

	// Data required to flee
	struct FleeData {
		AIFleeState _state;

		FleeData() {
			_state = FLEESTATE_GETNEARESTEXIT;
		}
	} _flee;

	// The next location the sprite has to reach
	// PLAYER: Used for adventure game style point-n-click movement
	// AI: Used for path-finding (usually to the player's location)
	struct Destination : public Vector2i {
		// Are we trying to reach the destination?
		bool _active;

		Destination() {
			_active = false;
		}
	} _dest;

	SpriteAIData() {}

	void dest(const int &x, const int &y, const bool &active = true) {
		_dest.x = x;
		_dest.y = y;
		_dest._active = active;
	}

	void dest(const Vector2i &v, const bool &active = true) {
		dest(v.x, v.y, active);
	}
};
} // End of namespace ai
} // End of namespace pyrodactyl

} // End of namespace Crab

#endif // CRAB_SPRITEAI_H