package dev.kske.chess.board;

/**
 * Project: <strong>Chess</strong><br>
 * File: <strong>Position.java</strong><br>
 * Created: <strong>02.07.2019</strong><br>
 * Author: <strong>Kai S. K. Engelbart</strong>
 */
public class Position {

	public final int x, y;

	public Position(int x, int y) {
		this.x	= x;
		this.y	= y;
	}

	public static Position fromSAN(String pos) {
		return new Position(pos.charAt(0) - 97, 8 - Character.getNumericValue(pos.charAt(1)));
	}

	public String toSAN() {
		return String.valueOf((char) (x + 97)) + String.valueOf(8 - y);
	}

	@Override
	public String toString() {
		return String.format("[%d, %d]", x, y);
	}

	@Override
	public int hashCode() {
		final int	prime	= 31;
		int			result	= 1;
		result	= prime * result + x;
		result	= prime * result + y;
		return result;
	}

	@Override
	public boolean equals(Object obj) {
		if (this == obj) return true;
		if (obj == null) return false;
		if (getClass() != obj.getClass()) return false;
		Position other = (Position) obj;
		if (x != other.x) return false;
		if (y != other.y) return false;
		return true;
	}
}