/** * Generate a new tile value using the given instance * of Random. Values are generated such that there are * 40% 1's, 40% 2's, 10% 3's, and 10% 6's. * @param rand * random number generator to use * @return * the value 1, 2, 3, or 6 with the specified probability */ public int generateRandomTileValue(Random rand) { // TODO return 0; }