#define BEG_X2

#define BEG_Y1

#define WID20

#define HEI20

HANDLE hout;

typedef enum {UP, DOWN, LEFT, RIGHT} DIR;

typedef struct Snake_body

{

COORD pos;//蛇身的位置

struct Snake_body *next;//下一个蛇身

struct Snake_body *prev;//前一个蛇身

}SNAKE, *PSNAKE;

PSNAKE head = NULL;//蛇头

PSNAKE tail = NULL;//蛇尾

//画游戏边框的函数

void DrawBorder()

{

int i, j;

COORD pos = {BEG_X, BEG_Y};

for(i = 0; i < hei;="">

{

SetConsoleCursorPosition(hout, pos);

for(j = 0; j < wid;="">

{

if(i == 0)//第一行

{

if(j == 0)

printf('┏');

else if(j == WID - 1)

printf('┓');

else

printf('━');

}

else if(i == HEI - 1)//最后一行

{

if(j == 0)

printf('┗');

else if(j == WID - 1)

printf('┛');

else

printf('━');

}

else if(j == 0 || j == WID - 1)//第一列或最后一列

printf('┃');

else

printf('  ');

}

++pos.Y;

}

}

//添加蛇身的函数

void AddBody(COORD pos)

{

PSNAKE pnew = (PSNAKE)calloc(1, sizeof(SNAKE));

pnew->pos = pos;

if(!head)

{

head = tail = pnew;

}

else

{

pnew->next = head;//新创建蛇身的next指向原先的蛇头

head->prev = pnew;//原先的蛇头的prev指向新创建的蛇身

head = pnew;//把新创建的蛇身作为新的蛇头

}

SetConsoleCursorPosition(hout, head->pos);

printf('◎');

}

//蛇身移动的函数

void MoveBody(DIR dir)

{

PSNAKE ptmp;

COORD pos = head->pos;

switch(dir)

{

case UP:

if(head->pos.Y > BEG_Y + 1)

--pos.Y;

else

return;

break;

case DOWN:

if(head->pos.Y < beg_y="" +="" hei="" -="">

++pos.Y;

else

return;

break;

case LEFT:

if(head->pos.X > BEG_X + 2)

pos.X -= 2;

else

return;

break;

case RIGHT:

if(head->pos.X < beg_x="" +="" (wid="" -="" 2)="" *="">

pos.X += 2;

else

return;

break;

}

AddBody(pos);//添加了一个新的蛇头

ptmp = tail;//保存当前的蛇尾

tail = tail->prev;

if(tail)

tail->next = NULL;

SetConsoleCursorPosition(hout, ptmp->pos);

printf('  ');

free(ptmp);

}

int main()

{

int ctrl;

DIR dir = RIGHT;//初始蛇的方向是向右的

COORD pos = {BEG_X + 2, BEG_Y + HEI / 2};

system('color 0E');

system('mode con cols=90 lines=30');

hout = GetStdHandle(STD_OUTPUT_HANDLE);

printf('    ------------贪吃蛇的移动------------');

DrawBorder();

//自定义几个蛇的身体

AddBody(pos);

pos.X += 2;

AddBody(pos);

pos.X += 2;

AddBody(pos);

pos.X += 2;

AddBody(pos);

pos.X += 2;

AddBody(pos);

pos.X += 2;

AddBody(pos);

pos.X += 2;

AddBody(pos);

//控制蛇的移动

while(ctrl = getch())

{

switch(ctrl)

{

case 'w':

if(dir == DOWN)

continue;

dir = UP;

break;

case 's':

if(dir == UP)

continue;

dir = DOWN;

break;

case 'a':

if(dir == RIGHT)

continue;

dir = LEFT;

break;

case 'd':

if(dir == LEFT)

continue;

dir = RIGHT;

break;

case 'q':

return 0;

}

MoveBody(dir);

}

return 0;

}