贪心、杂凑、递归、分类、评分、哈希、共识、聚类、分治、启发式、粒子群、最大期望、最小完成时间、序列最小优化。。。。算法无数，但是基础类似，无非坐标处理。那么开启一个坐标小游戏2048吧~
一个简单的2048小游戏的操作提示——Java控制台版本:
import java.util.Random; import java.util.Scanner; /** * * @author 老师付 2021年5月29日15:05:21 */ public class Action { static Random random = new Random(); static Scanner scanner = new Scanner(System.in); private static boolean isNotFull(int[][] board) { for (int[] ia : board) for (int i : ia) if (i == 0) return true; return false; } private static void generate(int[][] board) { assert isNotFull(board); while (true) { int number = random.nextInt(16); int row = number / 4; int col = number % 4; if (board[row][col] == 0) { board[row][col] = System.currentTimeMillis() % 2 == 0 ? 2 : 4; break; } } } static int[][] init() { int[][] numArray = new int[4][4]; generate(numArray); generate(numArray); return numArray; } static void showBoard(int[][] board) { for (int[] numArray : board) { for (int i : numArray) { if (i == 0) { System.out.printf("%4s", "."); } else { System.out.printf("%4s", i); } } System.out.println(); } } static char acceptInput() { while (true) { String line = scanner.nextLine().toLowerCase(); char direction = line.charAt(0); if ("wasdWASD".indexOf(direction) != -1) { return direction; }else { System.out.println("请按要求输入操作指令:"); System.out.println("up:w/W"); System.out.println("left:a/A"); System.out.println("down:s/S"); System.out.println("right:d/D"); } } } static void downBlock(int[][] numArray) { for (int i = 0; i < 4; i++) { for (int k = 0; k < 3; k++) { for (int j = 3; j > 0; j--) { if (numArray[j][i] == 0) { numArray[j][i] = numArray[j - 1][i]; numArray[j - 1][i] = 0; } } for (int j = 3; j > 0; j--) { if (numArray[j][i] == numArray[j - 1][i]) { numArray[j][i] = 2 * numArray[j][i]; numArray[j - 1][i] = 0; } } } } generate(numArray); } static void upBlock(int[][] numArray) { for (int i = 0; i < 4; i++) { for (int k = 0; k < 3; k++) { for (int j = 0; j < 3; j++) { if (numArray[j][i] == 0) { numArray[j][i] = numArray[j + 1][i]; numArray[j + 1][i] = 0; } } for (int j = 0; j < 3; j++) { if (numArray[j][i] == numArray[j + 1][i]) { numArray[j][i] = 2 * numArray[j][i]; numArray[j + 1][i] = 0; } } } } generate(numArray); } static void leftBlock(int[][] numArray) { for (int i = 0; i < 4; i++) { for (int k = 0; k < 3; k++) { for (int j = 0; j < 3; j++) { if (numArray[i][j] == 0) { numArray[i][j] = numArray[i][j + 1]; numArray[i][j + 1] = 0; } } for (int j = 0; j < 3; j++) { if (numArray[i][j] == numArray[i][j + 1]) { numArray[i][j] = 2 * numArray[i][j]; numArray[i][j + 1] = 0; } } } } generate(numArray); } static void rightBlock(int[][] numArray) { for (int i = 0; i < 4; i++) { for (int k = 0; k < 3; k++) { for (int j = 3; j > 0; j--) { if (numArray[i][j] == 0) { numArray[i][j] = numArray[i][j - 1]; numArray[i][j - 1] = 0; } } for (int j = 3; j > 0; j--) { if (numArray[i][j] == numArray[i][j - 1]) { numArray[i][j] = 2 * numArray[i][j]; numArray[i][j - 1] = 0; } } } } generate(numArray); } static void process(int[][] board, char direction) { switch (direction) { case 'w': upBlock(board); break; case 'a': leftBlock(board); break; case 's': downBlock(board); break; case 'd': rightBlock(board); break; } } public static void main(String[] args) { System.out.println("游戏开始：请按照操作提示游戏："); System.out.println("up:w/W"); System.out.println("left:a/A"); System.out.println("down:s/S"); System.out.println("right:d/D"); int[][] board = init(); while (true) { showBoard(board); char direction = acceptInput(); process(board, direction); } } }
玩法示例：输入大小写均可。
