C语言——贪吃蛇
一. 游戏效果
贪吃蛇
二. 游戏背景
贪吃蛇是久负盛名的游戏，它也和俄罗斯⽅块，扫雷等游戏位列经典游戏的⾏列。
贪吃蛇起源于1977年的投币式墙壁游戏《Blockade》，后移植到各种平台上。具体如下：
起源。1977年，投币式墙壁游戏生产商Gremlin推出了经典的街机游戏《Blockade》，两名玩家要分别控制角色移动，角色会不停长大，而且走过的地方会变成围栏，谁先碰到围栏或碰到自己的身体就算输。
起源。1977年，投币式墙壁游戏生产商Gremlin推出了经典的街机游戏《Blockade》，两名玩家要分别控制角色移动，角色会不停长大，而且走过的地方会变成围栏，谁先碰到围栏或碰到自己的身体就算输。
贪吃蛇最初的版本是像素版本，后来又衍生出3D版本、多人对战版本等2 3。
三、游戏开发日志
四、知识准备
本次实现贪吃蛇会使⽤到的⼀些Win32 API知识，那么就学习⼀下
4.1 Win32 API
Windows 这个多作业系统除了协调应⽤程序的执⾏、分配内存、管理资源之外， 它同时也是⼀个很⼤的服务中⼼，调⽤这个服务中⼼的各种服务（每⼀种服务就是⼀个函数），可以帮应⽤程式达到开启 视窗、描绘图形、使⽤周边设备等⽬的，由于这些函数服务的对象是应⽤程序(Application)， 所以便 称之为 Application Programming Interface， 简称 API 函数。 WIN32 API也就是Microsoft Windows 32位平台的应⽤程序编程接⼝。
4.2 控制台程序
平常我们运⾏起来的⿊框程序其实就是控制台程序。
我们可以使⽤cmd命令来设置控制台窗⼝的⻓宽，也可以通过命令设置控制台窗⼝的名字：
设置控制台窗⼝的⼤⼩，30⾏，100列，设置控制台窗⼝的名字。
//控制台窗口设置
system("mode con cols=100 lines=35");
system("title 贪吃蛇");4.3 控制台屏幕上的坐标COORD
COORD 是Windows API中定义的⼀种结构，表⽰⼀个字符在控制台屏幕上的坐标
typedef struct _COORD {
SHORT X;
SHORT Y;
} COORD, *PCOORD;4.4 GetStdHandle
GetStdHandle是⼀个Windows API函数。它⽤于从⼀个特定的标准设备（标准输⼊、标准输出或标准错误）中取得⼀个句柄（⽤来标识不同设备的数值），使⽤这个句柄可以操作设备。
HANDLE hOutput = NULL;
//获取标准输出的句柄(⽤来标识不同设备的数值)
hOutput = GetStdHandle(STD_OUTPUT_HANDLE);4.5 GetConsoleCursorInfo
检索有关指定控制台屏幕缓冲区的光标⼤⼩和可⻅性的信息
HANDLE hOutput = NULL;
//获取标准输出的句柄(⽤来标识不同设备的数值)
hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_CURSOR_INFO CursorInfo;
GetConsoleCursorInfo(hOutput, &CursorInfo);//获取控制台光标信息4.5.1 CONSOLE_CURSOR_INFO
这个结构体，包含有关控制台游标的信息
typedef struct _CONSOLE_CURSOR_INFO {
DWORD dwSize;
BOOL bVisible;
} CONSOLE_CURSOR_INFO, *PCONSOLE_CURSOR_INFO;（1） dwSize，由光标填充的字符单元格的百分⽐。 此值介于1到100之间。 光标外观会变化，范围从完全填充单元格到单元底部的⽔平线条。（2） bVisible，游标的可⻅性。 如果光标可⻅，则此成员为 TRUE。
CursorInfo.bVisible = false; //隐藏控制台光标5.6 SetConsoleCursorInfo
设置指定控制台屏幕缓冲区的光标的⼤⼩和可⻅性。
HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
//影藏光标操作
CONSOLE_CURSOR_INFO CursorInfo;
GetConsoleCursorInfo(hOutput, &CursorInfo);//获取控制台光标信息
CursorInfo.bVisible = false; //隐藏控制台光标
SetConsoleCursorInfo(hOutput, &CursorInfo);//设置控制台光标状态5.7 SetConsoleCursorPosition
设置指定控制台屏幕缓冲区中的光标位置，我们将想要设置的坐标信息放在COORD类型的pos中，调 ⽤SetConsoleCursorPosition函数将光标位置设置到指定的位置。COORD pos = { 10, 5}; HANDLE hOutput = NULL; //获取标准输出的句柄(⽤来标识不同设备的数值) hOutput = GetStdHandle(STD_OUTPUT_HANDLE); //设置标准输出上光标的位置为pos SetConsoleCursorPosition(hOutput, pos);
温馨提示：
这里我们可以将SetPos：封装⼀个设置光标位置的函数
//设置光标的坐标
void SetPos(short x, short y)
{
COORD pos = { x, y };
HANDLE hOutput = NULL;
//获取标准输出的句柄(⽤来标识不同设备的数值)
hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
//设置标准输出上光标的位置为pos
SetConsoleCursorPosition(hOutput, pos);
}5.8 GetAsyncKeyState
获取按键情况，将键盘上每个键的虚拟键值传递给函数，函数通过返回值来分辨按键的状态。返回值是short类型，在上⼀次调⽤ GetAsyncKeyState 函数后，如果 返回的16位的short数据中，最⾼位是1，说明按键的状态是按下，如果最⾼是0，说明按键的状态是抬起；如果最低位被置为1则说明，该按键被按过，否则为0。
如果我们要判断⼀个键是否被按过，可以检测GetAsyncKeyState返回值的最低值是否为1.
我们这里定义一个宏：
#define KEY_PRESS(VK) ( (GetAsyncKeyState(VK) & 0x1) ? 1 : 0 )5.9 宽字符打印
在游戏地图上，我们打印墙体使⽤宽字符：□，打印蛇使⽤宽字符●，打印⻝物使⽤宽字符■
普通的字符是占⼀个字节的，这类宽字符是俩个字节。
5.9.1 setlocale函数
char* setlocale (int category, const char* locale);setlocale 函数⽤于修改当前地区，可以针对⼀个类项修改，也可以针对所有类项。 setlocale 的第⼀个参数如果是LC_ALL，就会影响所有的类项。
C标准给第⼆个参数仅定义了2种可能取值："C"和" "。
在任意程序执⾏开始，都会隐藏式执⾏调⽤:
setlocale(LC_ALL, "C");当地区设置为"C"时，库函数按正常⽅式执⾏.
当地区设置为" "时，这种模式下程序会适应本地环境。⽐如：切换到我们的本地模式后就⽀
持宽字符（汉字）的输出等。
setlocale(LC_ALL, " ");//切换到本地环境宽字符的打印如下：
#include
#include
int main() {
setlocale(LC_ALL, "");
wchar_t ch1 = L'●';
wprintf(L"%c\n", ch1);
return 0;
} 五、游戏实现
5.1 游戏逻辑主体
#define _CRT_SECURE_NO_WARNINGS
#include"snake.h"
#include
#include
int main()
{
char ch;
setlocale(LC_ALL, "");//切换到本地环境,支持宽字符
srand((unsigned int)time(NULL));
do
{
Snake snake = { 0 };
GameInit(&snake);
GameRun(&snake);
GameOver(&snake);
printf("小垃圾还要再来吗？是：Y,否：N\n");
ch = getchar();
getchar();
} while (ch == 'y' || ch == 'Y');
return 0;
}
5.2 游戏初始化实现
#define _CRT_SECURE_NO_WARNINGS
#include"snake.h"
#define WALL L'□'
#define BODY L'●'
#define FOOD L'█'
void SetPos(short x, short y)
{
COORD pos = { x, y };
HANDLE hOutput = NULL;
//获取标准输出的句柄(⽤来标识不同设备的数值)
hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
//设置标准输出上光标的位置为pos
SetConsoleCursorPosition(hOutput, pos);
}
void WelcomeToGame()
{
SetPos(40, 13);
printf("欢迎来到贪吃蛇小游戏");
SetPos(42, 22);
system("pause");//会显示按任意键继续的信息，按任意键后继续执行下一步
system("cls");
SetPos(25, 12);
printf("↑ . ↓ . ← . → 分别控制蛇的移动， F3为加速，F4为减速\n");
SetPos(42, 22);
system("pause");//会显示按任意键继续的信息，按任意键后继续执行下一步
system("cls");
/*getchar();*/
}
void CreateMap()
{
SetPos(0,0);
int i = 0;
for(i=0;i<58;i=i+2)
{
wprintf(L"%c", WALL);
}
SetPos(0, 26);
for (i = 0; i < 58; i = i + 2)
{
wprintf(L"%c", WALL);
}
for (i = 1; i <26; i++)
{
SetPos(0, i);
wprintf(L"%c", WALL);
}
for (i = 1; i < 26; i++)
{
SetPos(56, i);
wprintf(L"%c", WALL);
}
/*getchar();*/
}
void InitSnake(Snake* snake)
{
//初始化蛇身
for (int i = 0; i < 5; i++)
{
SnakeNode* node = (SnakeNode*)malloc(sizeof(SnakeNode));
node->x = 24 + 2 * i;
node->y = 15;
node->next = NULL;
if (snake->pSnake== NULL)
{
snake->pSnake= node;
}
else
{
node->next = snake->pSnake;
snake->pSnake = node;
}
}
SnakeNode* cur = snake->pSnake;
while (cur)
{
int x = cur->x;
int y = cur->y;
SetPos(x, y);
wprintf(L"%c", BODY);
cur = cur->next;
}
snake->status = RUN;
snake->dir = RIGHT;
snake->FoodWeight = 10;
snake->pFood = NULL;
snake->score = 0;
snake->SleepTime = 200;
}
void CreateFood(Snake* snake)
{
int x = 0;
int y = 0;
again:
do
{
x = rand() % 53 + 2;
y = rand() % 24 + 1;
} while (x % 2 != 0);
SnakeNode* cur = snake->pSnake;
do
{
if (x == cur->x && y == cur->y)
{
goto again;
}
cur = cur->next;
} while (cur);
SnakeNode* food = (SnakeNode*)malloc(sizeof(SnakeNode));
food->x = x;
food->y = y;
snake->pFood = food;
SetPos(x, y);
wprintf(L"%c", FOOD);
/*getchar();*/
}
void GameInit(Snake* snake)
{
//控制台窗口设置
system("mode con cols=100 lines=35");
system("title 贪吃蛇");
//隐藏光标
HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_CURSOR_INFO CursorInfo;
GetConsoleCursorInfo(hOutput, &CursorInfo);//获取控制台光标信息
CursorInfo.bVisible = false; //隐藏控制台光标
SetConsoleCursorInfo(hOutput, &CursorInfo);//设置控制台光标状态
//打印欢迎界面
WelcomeToGame();
//创建地图
CreateMap();
//初始化贪吃蛇
InitSnake(snake);
//创建食物
CreateFood(snake);
}
5.3 游戏运行实现
void PrintHelpInfo()
{
SetPos(60, 13);
printf("1. 不能穿墙不能咬到自己\n");
SetPos(60, 14);
printf("2.↑.↓.←.→分别控制蛇的移动\n");
SetPos(60, 15);
printf("3. F3为加速，F4为减速\n");
SetPos(60, 16);
printf("4. ESC-退出，空格-暂停\n");
}
void Pause()
{
while (1)
{
Sleep(200);
if (KEY_PRESS(VK_SPACE) == 1)
{
break;
}
}
}
void EatFood(Snake* snake, SnakeNode* snakenext)
{
snakenext->next = snake->pSnake;
snake->pSnake = snakenext;
SnakeNode* cur = snake->pSnake;
while (cur)
{
SetPos(cur->x, cur->y);
wprintf(L"%lc", BODY);
cur = cur->next;
}
free(snake->pFood);
snake->pFood = NULL;
CreateFood(snake);
}
void NoEatFood(Snake* snake, SnakeNode* snakenext)
{
snakenext->next = snake->pSnake;
snake->pSnake = snakenext;
SnakeNode* cur = snake->pSnake;
while (cur->next->next)
{
SetPos(cur->x, cur->y);
wprintf(L"%lc", BODY);
cur = cur->next;
}
SetPos(cur->x, cur->y);
wprintf(L"%lc", BODY);
SetPos(cur->next->x, cur->next->y);
printf(" ");
free(cur->next);
cur->next = NULL;
}
void SnakeMove(Snake* snake)
{
SnakeNode* snakenext = (SnakeNode*)malloc(sizeof(SnakeNode));
if (snake->dir == UP)
{
snakenext->x = snake->pSnake->x;
snakenext->y = snake->pSnake->y -1;
snakenext->next = NULL;
}
else if (snake->dir == DOWN)
{
snakenext->x = snake->pSnake->x;
snakenext->y = snake->pSnake->y +1;
snakenext->next = NULL;
}
if (snake->dir == LEFT)
{
snakenext->x = snake->pSnake->x-2;
snakenext->y = snake->pSnake->y ;
snakenext->next = NULL;
}
if (snake->dir == RIGHT)
{
snakenext->x = snake->pSnake->x + 2;
snakenext->y = snake->pSnake->y;
snakenext->next = NULL;
}
//判断下一个节点是否为食物
if (snakenext->x == snake->pFood->x && snakenext->y == snake->pFood->y)
{
EatFood(snake,snakenext);//吃食物
snake->score += snake->FoodWeight;
}
else
{
NoEatFood(snake,snakenext);//不吃食物
}
//碰撞检测
if (snake->pSnake->x == 0 || snake->pSnake->x == 56 || snake->pSnake->y == 0 || snake->pSnake->y == 26)
{
snake->status = KILL_BY_WALL;
}
SnakeNode* cur = snake->pSnake->next;
while (cur)
{
if (cur->x == snake->pSnake->x && cur->y == snake->pSnake->y)
{
snake->status = KILL_BY_SELF;
}
cur = cur->next;
}
}
void GameRun(Snake* snake)
{
//打印帮助信息
PrintHelpInfo();
do
{
SetPos(60, 8);
printf("游戏总得分：%5d ", snake->score);
SetPos(60, 9);
printf("每个食物的分数：%2d ", snake->FoodWeight);
if (KEY_PRESS(VK_UP) == 1&&snake->dir!=DOWN)
{
snake->dir = UP;
}
else if (KEY_PRESS(VK_DOWN) == 1 && snake->dir != UP)
{
snake->dir = DOWN;
}
else if (KEY_PRESS(VK_RIGHT) == 1 && snake->dir != LEFT)
{
snake->dir = RIGHT;
}
else if (KEY_PRESS(VK_LEFT) == 1 && snake->dir != RIGHT)
{
snake->dir =LEFT;
}
else if (KEY_PRESS(VK_F3) == 1)
{
if (snake->SleepTime>=80)
{
snake->SleepTime -= 30;
snake->FoodWeight += 2;
}
}
else if (KEY_PRESS(VK_F4) == 1)
{
if (snake->SleepTime<=320)
{
snake->SleepTime += 30;
snake->FoodWeight -= 2;
}
}
else if (KEY_PRESS(VK_ESCAPE) == 1)
{
snake->status = OVER;
break;
}
else if (KEY_PRESS(VK_SPACE) == 1)
{
Pause();
}
SnakeMove(snake);
Sleep(snake->SleepTime);//每一帧停0.2s
} while (snake->status==RUN);
}
5.4 游戏结束实现
void GameOver(Snake* snake)
{
switch (snake->status)
{
case KILL_BY_WALL:
SetPos(20, 15);
printf("你已经撞墙了，小垃圾！\n");
break;
case KILL_BY_SELF:
SetPos(20, 15);
printf("你已经自杀了，小垃圾！\n");
break;
case OVER:
SetPos(20, 15);
printf("你退出游戏了，小垃圾！\n");
break;
}
SetPos(0, 29);
}六、 完整代码
6.1 snake.h
#define _CRT_SECURE_NO_WARNINGS
#include
#include
#include
#include
#include
#define KEY_PRESS(VK) ( (GetAsyncKeyState(VK) & 0x1) ? 1 : 0 )
enum direction{UP = 1, DOWN, LEFT, RIGHT};//蛇的方向
enum game_status{RUN,KILL_BY_WALL,KILL_BY_SELF,OVER};
typedef struct SnakeNode
{
int x;
int y;
struct SnakeNode* next;
}SnakeNode;
typedef struct Snake
{
SnakeNode* pSnake;//指向贪吃蛇头节点
SnakeNode* pFood;//指向食物的节点
int score;
int FoodWeight;
int SleepTime;
enum direction dir;//蛇的方向
enum game_status status;//游戏状态
}Snake;
void GameInit(Snake*snake);
void WelcomeToGame();
void CreateMap();
void InitSnake(Snake* snake);
void CreateFood(Snake* snake);
void GameRun(Snake* snake);
void PrintHelpInfo();
void Pause();
void SnakeMove(Snake* snake);
void EatFood(Snake* snake,SnakeNode*snakenext);
void NoEatFood(Snake* snake, SnakeNode* snakenext);
void GameOver(Snake* snake);
6.2 snake.c
#define _CRT_SECURE_NO_WARNINGS
#include"snake.h"
#define WALL L'□'
#define BODY L'●'
#define FOOD L'█'
void SetPos(short x, short y)
{
COORD pos = { x, y };
HANDLE hOutput = NULL;
//获取标准输出的句柄(⽤来标识不同设备的数值)
hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
//设置标准输出上光标的位置为pos
SetConsoleCursorPosition(hOutput, pos);
}
void WelcomeToGame()
{
SetPos(40, 13);
printf("欢迎来到贪吃蛇小游戏");
SetPos(42, 22);
system("pause");//会显示按任意键继续的信息，按任意键后继续执行下一步
system("cls");
SetPos(25, 12);
printf("↑ . ↓ . ← . → 分别控制蛇的移动， F3为加速，F4为减速\n");
SetPos(42, 22);
system("pause");//会显示按任意键继续的信息，按任意键后继续执行下一步
system("cls");
/*getchar();*/
}
void CreateMap()
{
SetPos(0,0);
int i = 0;
for(i=0;i<58;i=i+2)
{
wprintf(L"%c", WALL);
}
SetPos(0, 26);
for (i = 0; i < 58; i = i + 2)
{
wprintf(L"%c", WALL);
}
for (i = 1; i <26; i++)
{
SetPos(0, i);
wprintf(L"%c", WALL);
}
for (i = 1; i < 26; i++)
{
SetPos(56, i);
wprintf(L"%c", WALL);
}
/*getchar();*/
}
void InitSnake(Snake* snake)
{
//初始化蛇身
for (int i = 0; i < 5; i++)
{
SnakeNode* node = (SnakeNode*)malloc(sizeof(SnakeNode));
node->x = 24 + 2 * i;
node->y = 15;
node->next = NULL;
if (snake->pSnake== NULL)
{
snake->pSnake= node;
}
else
{
node->next = snake->pSnake;
snake->pSnake = node;
}
}
SnakeNode* cur = snake->pSnake;
while (cur)
{
int x = cur->x;
int y = cur->y;
SetPos(x, y);
wprintf(L"%c", BODY);
cur = cur->next;
}
snake->status = RUN;
snake->dir = RIGHT;
snake->FoodWeight = 10;
snake->pFood = NULL;
snake->score = 0;
snake->SleepTime = 200;
}
void CreateFood(Snake* snake)
{
int x = 0;
int y = 0;
again:
do
{
x = rand() % 53 + 2;
y = rand() % 24 + 1;
} while (x % 2 != 0);
SnakeNode* cur = snake->pSnake;
do
{
if (x == cur->x && y == cur->y)
{
goto again;
}
cur = cur->next;
} while (cur);
SnakeNode* food = (SnakeNode*)malloc(sizeof(SnakeNode));
food->x = x;
food->y = y;
snake->pFood = food;
SetPos(x, y);
wprintf(L"%c", FOOD);
/*getchar();*/
}
void GameInit(Snake* snake)
{
//控制台窗口设置
system("mode con cols=100 lines=35");
system("title 贪吃蛇");
//隐藏光标
HANDLE hOutput = GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_CURSOR_INFO CursorInfo;
GetConsoleCursorInfo(hOutput, &CursorInfo);//获取控制台光标信息
CursorInfo.bVisible = false; //隐藏控制台光标
SetConsoleCursorInfo(hOutput, &CursorInfo);//设置控制台光标状态
//打印欢迎界面
WelcomeToGame();
//创建地图
CreateMap();
//初始化贪吃蛇
InitSnake(snake);
//创建食物
CreateFood(snake);
}
void PrintHelpInfo()
{
SetPos(60, 13);
printf("1. 不能穿墙不能咬到自己\n");
SetPos(60, 14);
printf("2.↑.↓.←.→分别控制蛇的移动\n");
SetPos(60, 15);
printf("3. F3为加速，F4为减速\n");
SetPos(60, 16);
printf("4. ESC-退出，空格-暂停\n");
}
void Pause()
{
while (1)
{
Sleep(200);
if (KEY_PRESS(VK_SPACE) == 1)
{
break;
}
}
}
void EatFood(Snake* snake, SnakeNode* snakenext)
{
snakenext->next = snake->pSnake;
snake->pSnake = snakenext;
SnakeNode* cur = snake->pSnake;
while (cur)
{
SetPos(cur->x, cur->y);
wprintf(L"%lc", BODY);
cur = cur->next;
}
free(snake->pFood);
snake->pFood = NULL;
CreateFood(snake);
}
void NoEatFood(Snake* snake, SnakeNode* snakenext)
{
snakenext->next = snake->pSnake;
snake->pSnake = snakenext;
SnakeNode* cur = snake->pSnake;
while (cur->next->next)
{
SetPos(cur->x, cur->y);
wprintf(L"%lc", BODY);
cur = cur->next;
}
SetPos(cur->x, cur->y);
wprintf(L"%lc", BODY);
SetPos(cur->next->x, cur->next->y);
printf(" ");
free(cur->next);
cur->next = NULL;
}
void SnakeMove(Snake* snake)
{
SnakeNode* snakenext = (SnakeNode*)malloc(sizeof(SnakeNode));
if (snake->dir == UP)
{
snakenext->x = snake->pSnake->x;
snakenext->y = snake->pSnake->y -1;
snakenext->next = NULL;
}
else if (snake->dir == DOWN)
{
snakenext->x = snake->pSnake->x;
snakenext->y = snake->pSnake->y +1;
snakenext->next = NULL;
}
if (snake->dir == LEFT)
{
snakenext->x = snake->pSnake->x-2;
snakenext->y = snake->pSnake->y ;
snakenext->next = NULL;
}
if (snake->dir == RIGHT)
{
snakenext->x = snake->pSnake->x + 2;
snakenext->y = snake->pSnake->y;
snakenext->next = NULL;
}
//判断下一个节点是否为食物
if (snakenext->x == snake->pFood->x && snakenext->y == snake->pFood->y)
{
EatFood(snake,snakenext);//吃食物
snake->score += snake->FoodWeight;
}
else
{
NoEatFood(snake,snakenext);//不吃食物
}
//碰撞检测
if (snake->pSnake->x == 0 || snake->pSnake->x == 56 || snake->pSnake->y == 0 || snake->pSnake->y == 26)
{
snake->status = KILL_BY_WALL;
}
SnakeNode* cur = snake->pSnake->next;
while (cur)
{
if (cur->x == snake->pSnake->x && cur->y == snake->pSnake->y)
{
snake->status = KILL_BY_SELF;
}
cur = cur->next;
}
}
void GameRun(Snake* snake)
{
//打印帮助信息
PrintHelpInfo();
do
{
SetPos(60, 8);
printf("游戏总得分：%5d ", snake->score);
SetPos(60, 9);
printf("每个食物的分数：%2d ", snake->FoodWeight);
if (KEY_PRESS(VK_UP) == 1&&snake->dir!=DOWN)
{
snake->dir = UP;
}
else if (KEY_PRESS(VK_DOWN) == 1 && snake->dir != UP)
{
snake->dir = DOWN;
}
else if (KEY_PRESS(VK_RIGHT) == 1 && snake->dir != LEFT)
{
snake->dir = RIGHT;
}
else if (KEY_PRESS(VK_LEFT) == 1 && snake->dir != RIGHT)
{
snake->dir =LEFT;
}
else if (KEY_PRESS(VK_F3) == 1)
{
if (snake->SleepTime>=80)
{
snake->SleepTime -= 30;
snake->FoodWeight += 2;
}
}
else if (KEY_PRESS(VK_F4) == 1)
{
if (snake->SleepTime<=320)
{
snake->SleepTime += 30;
snake->FoodWeight -= 2;
}
}
else if (KEY_PRESS(VK_ESCAPE) == 1)
{
snake->status = OVER;
break;
}
else if (KEY_PRESS(VK_SPACE) == 1)
{
Pause();
}
SnakeMove(snake);
Sleep(snake->SleepTime);//每一帧停0.2s
} while (snake->status==RUN);
}
void GameOver(Snake* snake)
{
switch (snake->status)
{
case KILL_BY_WALL:
SetPos(20, 15);
printf("你已经撞墙了，小垃圾！\n");
break;
case KILL_BY_SELF:
SetPos(20, 15);
printf("你已经自杀了，小垃圾！\n");
break;
case OVER:
SetPos(20, 15);
printf("你退出游戏了，小垃圾！\n");
break;
}
SetPos(0, 29);
}
6.3 text.c
#define _CRT_SECURE_NO_WARNINGS
#include"snake.h"
#include
#include
int main()
{
char ch;
setlocale(LC_ALL, "");//切换到本地环境,支持宽字符
srand((unsigned int)time(NULL));
do
{
Snake snake = { 0 };
GameInit(&snake);
GameRun(&snake);
GameOver(&snake);
printf("小垃圾还要再来吗？是：Y,否：N\n");
ch = getchar();
getchar();
} while (ch == 'y' || ch == 'Y');
return 0;
}