/*
 * BreakHack - A dungeone crawler RPG
 * Copyright (C) 2018  Linus Probert <linus.probert@gmail.com>
 *
 * 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/>.
 */

#ifndef POSITION_H_
#define	POSITION_H_

#include <stdbool.h>

#define POS(x, y) (Position) { x, y }

typedef struct {
	int x;
	int y;
} Position;

/*
 * Return a matrix coord position for a given position
 */
Position
position_to_matrix_coords(const Position*);

/*
 * Get the room coord for the room containing the given position
 */
Position
position_to_room_coords(Position*);

/*
 * Check is a position is within a given room
 */
bool
position_in_room(Position *pos, Position *roomPos);

/*
 * Check if two positions are equal
 */
bool
position_equals(const Position*, const Position*);

/*
 * Check if two positions are separated by equal
 * or less of the provided distance.
 */
bool
position_proximity(unsigned int distance, const Position*, const Position*);

/*
 * Check if a matrix coord is still within the matrix
 */
bool
position_in_roommatrix(const Position*);

/*
 * Get the tile position for the given world position
 */
Position
position_to_tile_pos(const Position*);

/*
 * Add two positions
 */
Position
position_add(const Position*, const Position*);

#endif // POSITION_H_