这个怎么弄得啊？不理解为什么。。。
程序代码：void keyjiance() //按键检测函数定义
{
char key; //好像两个函数衔接不上。。。我的按键不起作用。。它只按我最初设定的方向走。。
if(_kbhit())
{
key = getch();
switch(key)
{
case 'w' : headir -> direction == 'w';break;
case 's' : headir -> direction == 's';break;
case 'd' : headir -> direction == 'd';break;
case 'a' : headir -> direction == 'a';break;
default : break;
}
}
}
void snake_move() //蛇身移动函数定义
{
p = head;
if(headir -> direction == 'w')
{
if(food -> x == head -> x && food -> y == head -> y)
{
gotoxy(food -> x,food -> y);
printf(" ");
creat_node(head -> x,head -> y -1); //添加结点
creat_food(); //产生食物
}
else
{
creat_node(head -> x,head -> y -1);
shanchu_tail(); //删除尾结点
}
}
if(headir -> direction == 's')
{
if(food -> x == head -> x && food -> y == head -> y)
{
gotoxy(food -> x,food -> y);
printf(" ");
creat_node(head -> x,head -> y + 1);
creat_food();
}
else
{
creat_node(head -> x,head -> y + 1);
shanchu_tail();
}
}
if(headir -> direction == 'd')
{
if(food -> x == head -> x && food -> y == head -> y)
{
gotoxy(food -> x,food -> y);
printf(" ");
creat_node(head -> x + 1,head -> y);
creat_food();
}
else
{
creat_node(head -> x + 1,head -> y);
shanchu_tail();
}
}
if(headir -> direction == 'a')
{
if(food -> x == head -> x && food -> y == head -> y)
{
gotoxy(food -> x,food -> y);
printf(" ");
creat_node(head -> x -1,head -> y);
creat_food();
}
else
{
creat_node(head -> x - 1,head -> y);
shanchu_tail();
}
}
}
