1 #include<iostream> 2 #include<stdio.h> 3 #include<stdlib.h> 4 #include<time.h> 5 #include<conio.h> 6 #include<windows.h> 7 using namespace std; 8 9 typedef struct{ int x, y; }Point; 10 11 char map[22][22]; //定义一个22*22的地图（含边界） 12 Point snake[400], food, Next; //定义蛇、食物、下一步蛇头的位置 13 int head, tail; //用于储存蛇头和蛇尾的下标 14 int grade, length, autotime; //游戏等级、蛇长、自动前进所需时间 15 char direction; //前进方向 16 17 //定位光标 18 void gotoxy(int x, int y) 19 { 20 HANDLE hConsoleOutput; 21 COORD dwCursorPosition; 22 dwCursorPosition.X = x; 23 dwCursorPosition.Y = y; 24 hConsoleOutput = GetStdHandle(STD_OUTPUT_HANDLE); 25 SetConsoleCursorPosition(hConsoleOutput, dwCursorPosition); 26 } 27 28 //用inline定义内联函数节省程序运行时的调用开销 29 //刷新地图 30 inline void Update(char map[][22], int grade, int length, int autotime) 31 { 32 //system("cls"); //清屏 33 gotoxy(0, 0); 34 int i, j; 35 printf(" "); 36 for (i = 0; i < 22; i++) 37 { 38 printf(" "); 39 for (j = 0; j < 22; j++) 40 printf("%c ", map[i][j]); 41 if (i == 0) 42 printf(" 等级为：%d", grade); 43 if (i == 2) 44 printf(" 长度为：%d", length); 45 if (i == 6) 46 printf(" 自动前进时间"); 47 if (i == 8) 48 printf(" 间隔为：%d ms", autotime); 49 printf(" "); 50 } 51 } 52 53 //欢迎界面 54 inline void hello() 55 { 56 puts(" 贪吃蛇游戏即将开始！"); //准备开始 57 double start; 58 for (int i = 3; i >= 0; i--) 59 { 60 start = (double)clock() / CLOCKS_PER_SEC; //得到程序目前为止运行的时间 61 while ((double)clock() / CLOCKS_PER_SEC - start <= 1); //经过1秒之后 62 if (i > 0) 63 { 64 system("cls"); //清屏 65 printf(" 进入倒计时：%d ", i); //倒计时 66 } 67 else 68 Update(map, grade, length, autotime); //刷新地图 69 } 70 } 71 72 //随机生成食物位置 73 inline void f() 74 { 75 srand(int(time(0))); //调用种子函数 76 do{ 77 food.x = rand() % 20 + 1; 78 food.y = rand() % 20 + 1; 79 } while (map[food.x][food.y] != ' '); 80 map[food.x][food.y] = '!'; //食物为“!” 81 } 82 83 //初始化 84 inline void init() 85 { 86 int i, j; 87 for (i = 1; i <= 20; i++) 88 for (j = 1; j <= 20; j++) 89 map[i][j] = ' '; 90 for (i = 0; i <= 21; i++) 91 map[0][i] = map[21][i] = map[i][0] = map[i][21] = '*'; //边界 92 map[1][1] = map[1][2] = 'O'; //蛇身（含蛇尾） 93 map[1][3] = '@'; //蛇头 94 head = 2; tail = 0; //开始时头和尾的下标 95 snake[head].x = 1; snake[head].y = 3; //开始时蛇头在地图上的下标 96 snake[tail].x = 1; snake[tail].y = 1; //开始时蛇尾在地图上的下标 97 snake[1].x = 1; snake[1].y = 2; //开始时蛇身在地图上的下标 98 f(); //随机生成食物位置 99 grade = 1; length = 3; autotime = 500; //开始的等级、长度、自动前进时间 100 direction = 77; //初始的运动方向向右 101 } 102 103 //预前进 104 inline int GO() 105 { 106 bool timeover = true; 107 double start = (double)clock() / CLOCKS_PER_SEC; //得到程序目前为止运行的时间 108 109 L: 110 //自动经过1秒或者等待1秒内的键盘输入 111 while ((timeover = ((double)clock() / CLOCKS_PER_SEC - start <= autotime / 1000.0)) && !_kbhit()); 112 //键盘输入 113 if (timeover) 114 { 115 //_getch(); 116 char d = _getch(); //获取方向 117 if (d != 72 && d != 80 && d != 75 && d != 77 || direction == 72 && d == 80 || direction == 80 && d == 72 || direction == 75 && d == 77 || direction == 77 && d == 75) 118 goto L; 119 else 120 direction = d; 121 } 122 switch (direction) 123 { 124 case 72: 125 Next.x = snake[head].x - 1; Next.y = snake[head].y; //向上 126 break; 127 case 80: 128 Next.x = snake[head].x + 1; Next.y = snake[head].y; //向下 129 break; 130 case 75: 131 Next.x = snake[head].x; Next.y = snake[head].y - 1; //向左 132 break; 133 case 77: 134 Next.x = snake[head].x; Next.y = snake[head].y + 1; //向右 135 break; 136 default: 137 puts(" Game over!"); //按下非方向键游戏失败 138 return 0; 139 } 140 if (Next.x == 0 || Next.x == 21 || Next.y == 0 || Next.y == 21) //撞到边界 141 { 142 puts(" Game over!"); 143 return 0; 144 } 145 if (map[Next.x][Next.y] != ' '&&!(Next.x == food.x&&Next.y == food.y)) //吃到自己 146 { 147 puts(" Game over!"); 148 return 0; 149 } 150 if (length == 400) //最长蛇长 151 { 152 puts(" Good game!"); 153 return 0; 154 } 155 return 1; 156 } 157 158 //吃到食物 159 inline void EAT() 160 { 161 length++; //长度增加1 162 int _grade = length / 10 + 1; //计算等级 163 if (_grade != grade) 164 { 165 grade = _grade; 166 if (autotime >= 100) 167 autotime = 550 - grade * 50; //增加一级自动时间减短50毫秒 168 } 169 map[Next.x][Next.y] = '@'; //蛇头位置变化 170 map[snake[head].x][snake[head].y] = 'O'; //原蛇头位置变化为蛇身 171 head = (head + 1) % 400; //蛇头下标加1 172 snake[head].x = Next.x; snake[head].y = Next.y; //蛇头下标变化 173 f(); //随机生成食物位置 174 Update(map, grade, length, autotime); //刷新地图 175 } 176 177 //没吃到食物 178 inline void FAILURE() 179 { 180 map[snake[tail].x][snake[tail].y] = ' '; //蛇尾原来的位置变成“ ” 181 tail = (tail + 1) % 400; //蛇尾下标加1 182 map[Next.x][Next.y] = '@'; //蛇头位置变化 183 map[snake[head].x][snake[head].y] = 'O'; //原蛇头位置变化为蛇身 184 head = (head + 1) % 400; //蛇头下标加1 185 snake[head].x = Next.x; //蛇头下标变化 186 snake[head].y = Next.y; 187 Update(map, grade, length, autotime); //刷新地图 188 } 189 190 //main函数 191 int main() 192 { 193 system("color F0"); 194 init(); //初始化 195 hello(); //欢迎界面 196 while (1) 197 { 198 if (GO()) //预前进 199 { 200 if (Next.x == food.x&&Next.y == food.y) 201 EAT(); //吃到食物 202 else 203 FAILURE(); //没吃到食物 204 } 205 else 206 return 0; //失败或者胜利，游戏结束 207 } 208 return 0; 209 } 210 //
运行结果截图：
