magomar
9/5/2013 - 1:12 PM

Class used to describe the directions of the sides of an hexagon relative to its center.

Class used to describe the directions of the sides of an hexagon relative to its center.

Direction
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public enum Direction {
    N(0, -1, -1),
    NE(1, 0, -1),
    SE(1, 1, 0),
    S(0, 1, 1),
    SW(-1, 1, 0),
    NW(-1, 0, -1),
    C(0, 0, 0);
    private final int incColumn;
    private final int incRowEven;
    private final int incRowOdd;

    private Direction(final int incI, final int incJEven, final int incJOdd) {
        this.incColumn = incI;
        this.incRowEven = incJEven;
        this.incRowOdd = incJOdd;
    }

    public int getIncColumn() {
        return incColumn;
    }

    public int getIncRowEven() {
        return incRowEven;
    }

    public int getIncRowOdd() {
        return incRowOdd;
    }

    public Point getNeighborCoordinates(Point coordinates) {
        int column = coordinates.x + getIncColumn();
        int row = coordinates.y + (Util.isEven(coordinates.x) ? getIncRowEven() : getIncRowOdd());
        return new Point(column, row);
    }
}