求助，帮忙修改程序让他在郭天祥开发版上有现象

F1F2F3 · 发表于 2023-6-6 19:40:44

#include <reg51.h>
#define uchar unsigned char
#define SNAKE 20
#define TIME 50
#define SPEED 71

sbit keyenable=P3^6;
sbit up=P3^3;
sbit down=P3^1;
sbit right=P3^2;
sbit left=P3^4;
uchar x[SNAKE+1];
uchar y[SNAKE+1];
uchar time,n,i,e;
char addx,addy;

void delay(char MS)
{
char us,usn;
while(MS!=0)
{
usn = 0;
while(usn!=0)
{
us=0xff;
while (us!=0){us--;};
usn--;
}
MS--;
}
}

bit knock()
{bit k;
k=0;
if(x[1]>7||y[1]>7)k=1;
for(i=2;i<n;i++)if((x[1]==x)&(y[1]==y))k=1;
return k;
}

void turnkey()// interrupt 0 using 2
{//up=1;
if(keyenable)
{
if(left)
{addy=0;if(addx!=1)addx=-1; else addx=1;}
if(right)
{addy=0;if(addx!=-1)addx=1; else addx=-1;}
if(up)
{addx=0;if(addy!=-1)addy=1; else addy=-1;}
if(down)
{addx=0;if(addy!=1)addy=-1; else addy=1;}
}
}

uchar mux(uchar temp)
{
if(temp==7)return 128;
if(temp==6)return 64;
if(temp==5)return 32;
if(temp==4)return 16;
if(temp==3)return 8;
if(temp==2)return 4;
if(temp==1)return 2;
if(temp==0)return 1;
return 0;
}

void timer0(uchar k)
{while(k--)
{for(i=0;i<SNAKE+1;i++)
{P2=mux(x);P1=255-mux(y);
turnkey();
delay(TIME);
P2=0x00;P1=0xff;
}}
}

void main(void)
{e=SPEED;
P0=0x00;
P1=0xff;
P2=0x00;
P3=0x00;
while(1)
{//if(keyenable==1){P1=0x00;P2=0xff;}else{P1=0xff;P2=0x00;}
for(i=3;i<SNAKE+1;i++)
x=100;
for(i=3;i<SNAKE+1;i++)
y=100;
x[0]=4;y[0]=4;
n=3;
x[1]=1;y[1]=0;
x[2]=0;y[2]=0;

addx=0;addy=0;
//k=1;
while(1)
{if(keyenable)
break;
timer0(1);}
while(1)
  {
timer0(e);
if(knock())
{e=SPEED;
break;}

Pcbbar · 发表于 2023-6-6 19:41:44

if((x[0]==x[1]+addx)&(y[0]==y[1]+addy))
         {n++;
if(n==SNAKE+1)
{n=3;e=e-10;
for(i=3;i<SNAKE+1;i++)x=100;
         for(i=3;i<SNAKE+1;i++)y=100;
}
         x[0]=x[n-2];
         y[0]=y[n-2];
         }
for(i=n-1;i>1;i--){x=x[i-1];y=y[i-1];}
//x[n-1]=x[2];y[n-1]=y[2];
x[1]=x[2]+addx;y[1]=y[2]+addy;
  }
}
}