C语言贪吃蛇
代码如下：
// 必要的头文件
#include
#include
#include
#include
#include
#include
// 定义标记上下左右的明示常量
#define UP 1
#define DOWN 2
#define LEFT 3
#define RIGHT 4
#define ESC 5
#define FOOD 10
// 定义表示位置的结构体类型
typedef struct snake{
int x;
int y;
struct snake *next;
}snake;
// 定义全局变量
int score = 0; // 当前得分
int speed = 200; // 存储当前速度
int status;
snake *tail, *head; // 存储蛇头蛇尾
snake *food, *q;// q用于遍历链表
HANDLE hOUT;
void gotoxy(int x, int y); // 设置光标位置
int choice(void); // 载入游戏界面
int color(int c); // 设置字体颜色
void printGame(void); // 打印游戏界面
void printSnake(void); // 打印蛇身
void printFood(void); // 打印食物
void printTips(void); // 打印提示
void snakeMove(void); // 主操作函数
int biteSelf(void); // 判断是否咬到了自己
int encounterWall(void); // 判断是否撞墙
void keyboardControl(void); // 获取击键
void speedUp(void); // 加速
void speedDown(void); // 减速
int endGame(void); // 结束函数;
char *s_gets(char *st, int n); // 读取字符
void frees(snake *); // 释放内存
int main(int argc, char *argv[]){
while (1)
{
if (choice() == 1)
keyboardControl();
else
{
gotoxy(5, 15);
printf("按任意键返回");
getchar(); // 去除前一个前导换行
while (1)
{
if (getchar())
{
system("cls");
break;
}
}
}
}
frees(head);
return 0;
}
void gotoxy(int x, int y)
{
COORD c;
c.X = x;
c.Y = y;
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), c);
}
int choice(void)
{
int yourchoice;
// 画出界面
gotoxy(35, 5);
color(11);
printf("\t贪吃蛇大作战\n");
printf("\n\n");
color(13);
printf("\t\t★★★★★★★★ Snake!");
printf("\t\t★★★★★★★★ Snake!");
gotoxy(25, 15);
color(12);
printf("1.进入游戏\t2.查看说明\t3.退出游戏\n");
color(11);
printf("请选择:");
scanf("%d", &yourchoice);
switch (yourchoice)
{
case 1:
system("cls");
// 初始化
printGame();
printSnake();
printFood();
break;
case 2:
system("cls");
printTips();
break;
case 3:
system("cls");
gotoxy(30, 10);
color(11);
printf("Bye!");
exit(0);
default:
system("cls");
printf("没有此序号,请输入1,2或3\n");
Sleep(2000);
system("cls");
}
return yourchoice;
}
int color(int c)
{
SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), c); //更改文字颜色
return 0;
}
void printGame()
{
int i, j;
gotoxy(5, 5);
printf("游戏载入中...请稍后");
Sleep(2000);
system("cls");
// 打印上下界面
for (i = 0; i <= 50; i += 2)
{
gotoxy(i, 0);
printf("□");
gotoxy(i, 25);
printf("□");
}
// 打印左右界面
for (i = 0; i <= 25; i += 1)
{
gotoxy(0, i);
printf("□");
gotoxy(50, i);
printf("□");
}
// 打印中间网格
for (i = 1; i <= 24; i += 1)
{
for (j = 2; j <= 48; j += 2)
{
gotoxy(j, i);
color(11);
printf("■");
}
}
// 打印右侧的规则和计分栏
gotoxy(60, 13);
printf("当前分数:%d分,当前速度%d", score, speed);
gotoxy(60, 15);
printf("用↑ ↓ ← →分别控制蛇的移动\n");
gotoxy(60, 18);
printf("每次获取食物加10分 按下F1加速,F2减速,空格暂停\n");
gotoxy(60, 20);
printf("不能撞墙和咬到自己!");
gotoxy(60, 22);
printf("速度不低于100,不高于300");
}
void printSnake(void)
{
int i;
// 设定蛇尾(16,13),头插入,初始向右
tail = (snake*)malloc(sizeof(snake));
tail->x = 16;
tail->y = 13;
tail->next = NULL;
// 设定初始蛇长是4
for (i = 1; i <= 4; i++)
{
head = (snake*)malloc(sizeof(snake));
head->next = tail;
head->x = 16 + 2 * i;
head->y = 13;
tail = head; // 头成为尾
}
// 输出蛇身
while (tail->next)
{
gotoxy(tail->x, tail->y);
color(14);
printf("★");
tail = tail->next;
}
}
void printFood(void)
{
srand((unsigned)time(NULL)); // 利用时钟修改种子
food = (snake*)malloc(sizeof(snake));
food->x = 1; // 初始化x坐标
while (food->x % 2 && food->x)
{
food->x = rand() % 46 + 2;// 2-48
}
food->y = rand() % 23 + 1; // 1-24
q = head; // 不改变头遍历链表
while (q->next)
{
if (q->x == food->x && q->y == food->y)
{
free(food);
printFood();
}
else
{
gotoxy(food->x, food->y);
color(12);
printf("●");
break;
}
}
}
void printTips(void)
{
color(11);
printf("***********Tips************\n");
printf("1.采用合理的速度可以获得更高的分数哦!\n");
printf("2.一定不要撞到自己或者两边的墙!\n");
printf("3.游戏过程中按ESC退出游戏!\n");
}
void snakeMove(void)
{
snake *snakenext;
snakenext = (snake*)malloc(sizeof(snake));
if (biteSelf())
{
gotoxy(60, 11);
printf("咬到自己啦!");
free(snakenext);
Sleep(1500);
system("cls");
exit(0);
}
else if (encounterWall())
{
gotoxy(60, 11);
printf("撞到墙啦!");
free(snakenext);
Sleep(1500);
system("cls");
exit(0);
}
else
{
// 前两个条件判断完成才开始移动
Sleep(350 - speed);
if (status == UP)
{
snakenext->x = head->x;
snakenext->y = head->y - 1;
snakenext->next = head;
head = snakenext;
q = head;
if (snakenext->x == food->x && snakenext->y == food->y)
{
while (q)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
score += FOOD;
gotoxy(60, 13);
printf("当前分数:%d分,当前速度%d", score, speed);
printFood();
}
else
{
while (q->next->next)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
gotoxy(q->next->x, q->next->y);
color(11);
printf("■");
free(q->next);
q->next = NULL;
}
}
else if (status == DOWN)
{
snakenext->x = head->x;
snakenext->y = head->y + 1;
snakenext->next = head;
head = snakenext;
q = head;
if (snakenext->x == food->x && snakenext->y == food->y)
{
while (q)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
score += FOOD;
gotoxy(60, 13);
printf("当前分数:%d分,当前速度%d", score, speed);
printFood();
}
else
{
while (q->next->next)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
gotoxy(q->next->x, q->next->y);
color(11);
printf("■");
free(q->next);
q->next = NULL;
}
}
else if (status == LEFT)
{
snakenext->x = head->x - 2;
snakenext->y = head->y;
snakenext->next = head;
head = snakenext;
q = head;
if (snakenext->x == food->x && snakenext->y == food->y)
{
while (q)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
score += FOOD;
gotoxy(60, 13);
printf("当前分数:%d分,当前速度%d", score, speed);
printFood();
}
else
{
while (q->next->next)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
gotoxy(q->next->x, q->next->y);
color(11);
printf("■");
free(q->next);
q->next = NULL;
}
}
else if (status == RIGHT)
{
snakenext->x = head->x + 2;
snakenext->y = head->y;
snakenext->next = head;
head = snakenext;
q = head;
if (snakenext->x == food->x && snakenext->y == food->y)
{
while (q)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
score += FOOD;
gotoxy(60, 13);
printf("当前分数:%d分,当前速度%d", score, speed);
printFood();
}
else
{
while (q->next->next)
{
gotoxy(q->x, q->y);
color(14);
printf("★");
q = q->next;
}
gotoxy(q->next->x, q->next->y);
color(11);
printf("■");
free(q->next);
q->next = NULL;
}
}
}
}
int biteSelf(void)
{
int x = 0; // 默认未咬到自己
q = head->next;
// 遍历蛇身
while (q->next)
{
if (q->x == head->x && q->y == head->y)
{
x = 1;
}
q = q->next;
}
return x;
}
int encounterWall(void)
{
int x = 0; // 默认未撞到墙
if (head->x == 0 || head->x == 50 || head->y == 0 || head->y == 25)
x = 1;
return x;
}
void keyboardControl(void)
{
status = RIGHT; // 初始蛇向右移动
while (1)
{
if (GetAsyncKeyState(VK_UP) && status != DOWN) // GetAsyncKeyState函数用来判断函数调用时指定虚拟键的状态
{
status = UP; //如果蛇不是向下前进的时候，按上键，执行向上前进操作
}
else if (GetAsyncKeyState(VK_DOWN) && status != UP) // 如果蛇不是向上前进的时候，按下键，执行向下前进操作
{
status = DOWN;
}
else if (GetAsyncKeyState(VK_LEFT) && status != RIGHT) // 如果蛇不是向右前进的时候，按左键，执行向左前进
{
status = LEFT;
}
else if (GetAsyncKeyState(VK_RIGHT) && status != LEFT) // 如果蛇不是向左前进的时候，按右键，执行向右前进
{
status = RIGHT;
}
if (GetAsyncKeyState(VK_SPACE))// 空格暂停
{
while (1)
{
Sleep(300);
if (GetAsyncKeyState(VK_SPACE)) // 再次按空格改变状态
{
break;
}
}
}
else if (GetAsyncKeyState(VK_ESCAPE))
{
status = ESC; // 按esc键,直接到结束界面
if (endGame())
{
Sleep(500);
system("cls");
break;
}
}
else if (GetAsyncKeyState(VK_F1)) // 按F1键，加速
{
speedUp();
gotoxy(60, 13);
printf("当前分数:%d分,当前速度%d", score, speed);
}
else if (GetAsyncKeyState(VK_F2)) // 按F2键，减速
{
speedDown();
gotoxy(60, 13);
printf("当前分数:%d分,当前速度%d", score, speed);
}
snakeMove();
}
}
void speedUp(void)
{
if (speed <= 280)
speed += 20;
}
void speedDown(void)
{
if (speed >= 120)
speed -= 20;
}
int endGame(void)
{
char x = 0;
char judge[5];
getchar();
gotoxy(60, 9);
printf("确定退出吗?(Yes/No)");
gotoxy(60, 11);
s_gets(judge, 5);
if (strcmp(judge, "Yes") == 0)
{
Sleep(250);
system("cls");
gotoxy(40, 11);
printf("\tBye!");
x = 1;
}
else
x = 0;
return x;
}
char *s_gets(char *st, int n)
{
char *ret_val;
char *find;
gotoxy(60, 11);
ret_val = fgets(st, n, stdin);
if (ret_val)
{
find = strchr(st, '\n');
if (find)
*find = '\0';
else
while (getchar() != '\n')
continue;
}
return ret_val;
}
void frees(snake *s)
{
snake *current = s;
while (current)
{
current = s;
s = current->next;
free(current);
}
}