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srand(time(NULL));

while (1)

{

while (!kbhit()) //在没有按键的情况下,蛇自己移动身体

{

if (food.addFood == 1) //需要出现新食物

{

food.x = rand() % 400 + 60;

food.y = rand() % 350 + 60;

//食物出现后必须在整格内才能让蛇吃到

while (food.x%10 != 0)

{

food.x++;

}

while (food.y%10 != 0)

{

food.y++;

}

food.addFood = 0; //画面上有食物

}

if (food.addFood == 0) //画面上有食物，则显示

{

setcolor(GREEN);

rectangle(food.x, food.y, food.x+10, food.y-10);

}

for (i=snake.joint-1; i>0; i--) //蛇的每个节往前移动

{

snake.x[i] = snake.x[i-1];

snake.y[i] = snake.y[i-1];

} //1,2,3,4 表示右,左,上,下四个方向,来决定蛇头的移动

switch(snake.direction)

{

case MV_RIGHT: snake.x[0] += 10; break;

case MV_LEFT: snake.x[0] -= 10; break;

case MV_UP: snake.y[0] -= 10; break;

case MV_DOWN: snake.y[0] += 10; break;

} //从蛇的第四节开始判断是否撞到自己，因为蛇头为两节，第三节不可能拐过来

for (i=3; i

{

if (snake.x[i]==snake.x[0] && snake.y[i]==snake.y[0])

{

GameOver(score); //显示失败

snake.life = 1; //蛇死*/

break;

}

} //判断蛇是否撞到墙壁

if (snake.x[0]<55 || snake.x[0]>595

|| snake.y[0]<55 || snake.y[0]>455)

{

GameOver(score); //本次游戏结束

snake.life = 1; //蛇死

} //以上两种判断以后,如果蛇死就跳出内循环，重新开始

if (snake.life == 1) break;

if (snake.x[0]==food.x && snake.y[0]==food.y) //吃到食物后

{

//把画面上的食物清除

setcolor(0);

rectangle(food.x, food.y, food.x+10, food.y-10);

//新的一节先放在看不见的位置,下次循环就取前一节的位置

snake.x[snake.joint] =-20; snake.y[snake.joint] =-20;

snake.joint++; //蛇的身体长一节

food.addFood = 1; //画面上需要出现新食物

score += 10;

PrScore(score); //输出新得分

} //画蛇

setcolor(RED);

for (i=0; i

{

rectangle(snake.x[i], snake.y[i],

snake.x[i]+10, snake.y[i]-10);

} Sleep(gamespeed); //延时控制蛇的速度 //去除蛇的最后一节

setcolor(0);

rectangle(snake.x[snake.joint-1], snake.y[snake.joint-1],

snake.x[snake.joint-1]+10,snake.y[snake.joint-1]-10);

} //end of while(!kbhit) if (snake.life == 1) break; //如果蛇死，则跳出循环

key=getch();//接收按键

switch(key)//判断按键，是否往相反方向移动，按Esc键则退出

{

case 'w':snake.direction = MV_UP;break;

case 'd':snake.direction = MV_RIGHT;break;

case 'a':snake.direction = MV_LEFT;break;

case 's':snake.direction = MV_DOWN;break;

}

} //end of while(1)

}