private Position getSubImagePosition() {
        Position position = new Position();
        switch (currentType) {
            case LIGHT_STONE:
                position.x = 0;
                break;
            case GREEN_STONE:
                position.x = 93;
                break;
            case GREY_STONE:
                position.x = 185;
                break;
            case BLACK_STONE:
                position.x = 277;
                break;
        }
        position.y = 0;
        return position;
    }