gistfile1.txt

                        int[3] newArr;
                        {
                            int i = 0;
                            foreach (int id; neighborhood) {
                                if (id != 0)
                                    newArr[i++] = id;
                            }
                        }
                        int nextColor;
                        if (newArr[0] == newArr[1]) {
                            nextColor = newArr[0];
                        } else if (newArr[0] == newArr[2]) {
                            nextColor = newArr[0];
                        } else if (newArr[1] == newArr[3]) {
                            nextColor = newArr[1];
                        } else {
                            // no majority, pick a random one
                            nextColor = newArr[truerandint(3)];
                        }
                        nextGrid[x][y] = nextColor;