基于51单片机的点阵屏贪吃蛇小游戏程序

ID:1063432 · 发表于 2023-4-2 20:13

实现源码

#include <reg51.h>
#define uchar unsigned char
#define SNAKE 20
#define TIME 50
#define SPEED 71
//#define  keyenable 1
sbit keyenable=P3^6;
/*sbit keyx=P0^1;
sbit keyy=P0^2;
//sbit up=P0^0;
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[ i])&(y[1]==y[ i]))k=1;  //×2×??o
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;}
/*if(keyy)
{addy=0;
if(keyx)if(addx==-1)addx=-1; else addx=1;
else
if(addx==1)addx=1; else addx=-1;
}
else
{addx=0;
if(keyx)if(addy==1)addy=1; else addy=-1;
else
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[ i]);P1=255-mux(y[ i]);
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[ i]=100;for(i=3;i<SNAKE+1;i++)y[ i]=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;}
      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[ i]=100;
         for(i=3;i<SNAKE+1;i++)y[ i]=100;
               }
         x[0]=x[n-2];
         y[0]=y[n-2];
         }
for(i=n-1;i>1;i--){x[ i]=x[i-1];y[ i]=y[i-1];}
//x[n-1]=x[2];y[n-1]=y[2];
x[1]=x[2]+addx;y[1]=y[2]+addy;
  }
}
}

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