贪吃蛇独立键盘控制上下左右，矩阵键盘控制一次蛇的速度

ID:805121 · 发表于 2020-7-18 14:58

void Keypros()
{
char a=0;
press=0x0f;
if (press!=0x0f)
{
  delay(1000);
  if (press!=0x0f)
  {
press=0x0f;
switch (press)
{
case (0x07):num=0;break;
case (0x0b):num=1;break;
case (0x0d):num=2;break;
case (0x0e):num=3;break;
}
press=0xf0;
switch (press)
{
case (0x70):num=num;break;
case (0xb0):num=num+4;break;
case (0xd0):num=num+8;break;
case (0xe0):num=num+12;break;
}
  }
}
while ((press!=0xf0)&&(a<50))
{
  //delay(10);
  a++;
}
if(up==0)
{
  delay(1000);
  if(up==0)
  {
if(direction==3|direction==4)
direction=1;
  }
  while(!up);
}
if(down==0)
{
  delay(1000);
  if(down==0)
  { if(direction==3|direction==4)
direction=2;
  }
  while(!down);
}
if(lt==0)
{
  delay(100);
  if(lt==0)
  {
   if(direction==1|direction==2)
direction=3;
  }
  while(!lt);
}
if(rt==0)
{
  delay(1000);
  if(rt==0)
  {
   if(direction==1|direction==2)
   direction=4;
  }
  while(!rt);
}
}

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