贪吃蛇.docx

贪吃蛇

#include <reg52.h>#include <stdlib.h>#define uint unsigned int#define uchar unsigned char#include

<intrins.h> sbit DIO = P3 ^ 4;sbit S_CLK = P3 ^ 5;sbit R_CLK = P3 ^ 6;sbit key_s2 = P3 ^ 0;sbit

key_s3 = P3 ^ 1;sbit key_s4 = P3 ^ 2;sbit key_s5 = P3 ^ 3; uchar coorx[8] = {

0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe };uchar coory[8] = {

0x01,0x02,0x04,0x08,0x10,0x20,0x40,0x80 };uchar snakex[20];uchar snakey[20];uchar m = 0;uchar

len = 1;uchar foodx, foody;uchar d, xx, yy; char key = 0; void delay(uint z){ uint x, y; for (x = z; x >

0; x--) for (y = 114; y > 0; y--);} void keyscan(){ if (key_s2 == 0) { delay(10); if (key_s2 == 0)

{ if (key != 4) key = 1; } } if (key_s3 == 0) { delay(10); if (key_s3 == 0) { if (key !=

0x01) DIO = 1; else DIO = 0; S_CLK = 1;//串行输入 S_CLK = 0; dat2 >>= 1; }

R_CLK = 1;//并行输出 R_CLK = 0;} uchar CheckFood()//检验食物有没有和蛇体重合{ uchar i;

for (i = 0; i < len; i++) { if (foodx == snakex[i] && foody == snakey[i]) { return 1; } } return

0;} void creat_food(){ do { foodx = (uchar)(rand() % 8 + 1); foody = (uchar)(rand() % 8 + 1); }

while (CheckFood() != 0);} void FoodAnd()//检验食物有没有被吃掉{ if (foodx == snakex[0] &&

foody == snakey[0]) { if (len < 20) { snakex[len] = snakex[len - 1];//和之前一样，把上一个

结点的状态赋给下一个结点，用来增加长度 snakey[len] = snakey[len - 1]; len++; }

creat_food();//被吃掉重新生成食物 }} void left()//上下左右都是一个道理{ uchar i, x1, x2, y1, y2;

x1 = snakex[0];//保留上一结点的 x 轴状态 snakex[0]--;//坐标减 1 if (snakex[0] == 0)//这里是判定

是否碰到边界了，这里设定的是可以从另一边出来，当然也可以设定为碰到就死 snakex[0] =

snakey[i]; snakey[i] = y1; y1 = y2; x2 = snakex[i]; snakex[i] = x1; x1 = x2; }} void right(){

uchar i, x1, x2, y1, y2; x1 = snakex[0]; snakex[0]++; if (snakex[0] == 9) snakex[0] = 1; y1 =