/** * Represents a grid of hexagonal tiles, kind of * like a honeycomb. * ___ ___ ___ * / 0 \___/ 6 \___/12 \___ * \___/ 3 \___/ 9 \___/15 \ * / 1 \___/ 7 \___/13 \___/ * \___/ 4 \___/10 \___/16 \ * / 2 \___/ 8 \___/14 \___/ * \___/ 5 \___/11 \___/17 \ * \___/ \___/ \___/ * * The above example is of height 3 and width 6, * but other sizes can be specified. * * It takes into account six cardinal directions. * * N * NW ___ NE * / \ * \___/ * SW SE * S */ public static class HexGrid { public static int EMPTY = -1; public HexGrid(int height, int width) { // TODO: Implement me! } /** * Returns the list of neighbors for a given tile in clockwise order, starting with N. * Any empty tiles will be represented as {@link #EMPTY}. * * @param index of the tile of interest * @return tiles that are adjacent, clockwise starting with N. */ public List<Integer> getTileNeighbors(int index) { // TODO: Implement me! return null; } } }