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