2048小游戏

熟悉的2048小游戏，环境：Windows10及以上，dev.c++5.11及以上或控制台（可能有警告，不影响运行）

付代码：

#include <iostream>
#include <cstdlib>
#include <ctime>using namespace std;const int SIZE = 4;
int board[SIZE][SIZE];// 初始化游戏棋盘，随机两个位置生成 2 或 4
void initialize() {for (int i = 0; i < SIZE; ++i) {for (int j = 0; j < SIZE; ++j) {board[i][j] = 0;}}srand(time(0));int x1 = rand() % SIZE;int y1 = rand() % SIZE;board[x1][y1] = (rand() % 2 == 0) ? 2 : 4;int x2, y2;do {x2 = rand() % SIZE;y2 = rand() % SIZE;} while (x2 == x1 && y2 == y1);board[x2][y2] = (rand() % 2 == 0) ? 2 : 4;
}// 打印游戏棋盘
void printBoard() {system("cls");for (int i = 0; i < SIZE; ++i) {for (int j = 0; j < SIZE; ++j) {if (board[i][j] == 0) {cout << ".\t";} else {cout << board[i][j] << "\t";}}cout << endl;}
}// 在空白位置随机生成一个 2 或 4
void generateRandomTile() {int emptyTiles = 0;for (int i = 0; i < SIZE; ++i) {for (int j = 0; j < SIZE; ++j) {if (board[i][j] == 0) {emptyTiles++;}}}if (emptyTiles > 0) {int randomTile = rand() % emptyTiles;int count = 0;for (int i = 0; i < SIZE; ++i) {for (int j = 0; j < SIZE; ++j) {if (board[i][j] == 0) {if (count == randomTile) {board[i][j] = (rand() % 2 == 0) ? 2 : 4;return;}count++;}}}}
}// 判断是否还有空白位置
bool hasEmptyTile() {for (int i = 0; i < SIZE; ++i) {for (int j = 0; j < SIZE; ++j) {if (board[i][j] == 0) {return true;}}}return false;
}// 判断是否还有可合并的相邻方块
bool canMerge() {for (int i = 0; i < SIZE; ++i) {for (int j = 0; j < SIZE; ++j) {if (i > 0 && board[i][j] == board[i - 1][j]) {return true;}if (i < SIZE - 1 && board[i][j] == board[i + 1][j]) {return true;}if (j > 0 && board[i][j] == board[i][j - 1]) {return true;}if (j < SIZE - 1 && board[i][j] == board[i][j + 1]) {return true;}}}return false;
}// 判断游戏是否结束
bool isGameOver() {return!hasEmptyTile() &&!canMerge();
}// 向上移动
void up() {bool moved = false;for (int j = 0; j < SIZE; ++j) {for (int i = 1; i < SIZE; ++i) {if (board[i][j] != 0) {int k = i;while (k > 0 && board[k - 1][j] == 0) {board[k - 1][j] = board[k][j];board[k][j] = 0;k--;moved = true;}if (k > 0 && board[k - 1][j] == board[k][j]) {board[k - 1][j] *= 2;board[k][j] = 0;moved = true;}}}}if (moved) {generateRandomTile();}
}// 向下移动
void down() {bool moved = false;for (int j = 0; j < SIZE; ++j) {for (int i = SIZE - 2; i >= 0; --i) {if (board[i][j] != 0) {int k = i;while (k < SIZE - 1 && board[k + 1][j] == 0) {board[k + 1][j] = board[k][j];board[k][j] = 0;k++;moved = true;}if (k < SIZE - 1 && board[k + 1][j] == board[k][j]) {board[k + 1][j] *= 2;board[k][j] = 0;moved = true;}}}}if (moved) {generateRandomTile();}
}// 向左移动
void left() {bool moved = false;for (int i = 0; i < SIZE; ++i) {for (int j = 1; j < SIZE; ++j) {if (board[i][j] != 0) {int k = j;while (k > 0 && board[i][k - 1] == 0) {board[i][k - 1] = board[i][k];board[i][k] = 0;k--;moved = true;}if (k > 0 && board[i][k - 1] == board[i][k]) {board[i][k - 1] *= 2;board[i][k] = 0;moved = true;}}}}if (moved) {generateRandomTile();}
}// 向右移动
void right() {bool moved = false;for (int i = 0; i < SIZE; ++i) {for (int j = SIZE - 2; j >= 0; --j) {if (board[i][j] != 0) {int k = j;while (k < SIZE - 1 && board[i][k + 1] == 0) {board[i][k + 1] = board[i][k];board[i][k] = 0;k++;moved = true;}if (k < SIZE - 1 && board[i][k + 1] == board[i][k]) {board[i][k + 1] *= 2;board[i][k] = 0;moved = true;}}}}if (moved) {generateRandomTile();}
}int main() {initialize();while (true) {printBoard();if (isGameOver()) {cout << "Game Over!" << endl;break;}char input;cin >> input;switch (input) {case 'w':up();break;case 's':down();break;case 'a':left();break;case 'd':right();break;default:cout << "请输入'w', 's', 'a',d'" << endl;}}return 0;
}