Snake-program.zip

#include<reg52.h> #include <stdlib.h> #include <stdio.h> #define uint unsigned int #define uchar unsigned char #define Snake 15 //最大长度，蛇吃满多少就自动结束程序 sbit DS=P1^0; //595串口数据输入端 sbit OE=P1^1; //使能端，低电平有效 sbit ST=P1^2; //移位寄存器的时钟输入 SCK sbit SH=P1^3; //存储器的时钟输入 RCK char length,Level; char addx,addy; //位移偏移量 char x_food,y_food; //食物坐标 uchar x[Snake-1]; //x坐标 uchar y[Snake-1]; //y坐标 uchar time,n,i,e; uchar SPEED; //速度 char Play_en; //开始游戏标志 char Sad_flag; sbit Key_EN=P2^0; //方向使能,默认是低电平 sbit up=P2^3; //定义方向键 sbit down=P2^2; sbit left=P2^1; sbit right=P2^4; sbit Mode=P2^5; char temp; char Init_Snake_flag; char Mode_flag; char Mode_1,Mode_2; uint Wait_Time; char Eat_Food_super(char i); void Game_play_super(); void Init_Snake(); void Display(uchar x,uchar y); void delay() { char j,i; for (i=0;i<25;i++) for (j=0;j<10;j++); } /******************************************* 判断碰撞 *******************************************/ char Knock() { temp=0; if((x[length-1]==(-1))||(x[length-1]==16)||(y[length-1]==(-1))||(y[length-1]==16)) temp=1; //撞墙 for(i=0;i<length-1;i++) { if((x[length-1]==x[i])&&(y[length-1]==y[i])) //撞自己 { temp=1; break; } } return temp; } /***************** 方向处理 *****************/ void Key_Scan() { P2=0xff; if (Mode==0) //模式转换处理按键 { delay(); while (Mode==0); Mode_flag=!Mode_flag; } if (Key_EN==0) Play_en=1; if(Play_en==1) { if(right==0) { addy=0; if (addx!=-1) addx=1;else addx=-1; } if(left==0) { addy=0;if (addx!=1) addx=-1;else addx=1; } if(up==0) { addx=0; if (addy!=-1) addy=1;else addy=-1; } if(down==0) { addx=0; if (addy!=1) addy=-1;else addy=1; } } } void Transmit_Data(unsigned long Data) { uchar i; unsigned long Num; OE=0; Num=Data; for(i=0;i<32;i++) { if(Num&0x80000000) DS=1; else DS=0; SH=1; //上升沿，数据送入寄存器 SH=0; Num<<=1; } ST=1; //上升沿，数据推出端口 ST=0; } void Display(uchar x,uchar y) //显示点函数 { unsigned int L,H; unsigned long point; L=1<<(15-x); H=~(1<<y); point=L; point<<=16; point+=H; Transmit_Data(point); } /***************** 碰撞表情 “囧” *****************/ void Sad() { uchar i,j,k,n,m,a,b; char g=2; unsigned long Count; if(Sad_flag==1) { for (i=0;i<3;i++) { Display(i+2,i+11); } for (i=11;i<14;i++) { Display(i,11+g); g--; } for (i=0;i<16;i++) { Display(0,i); } for (j=0;j<16;j++) { Display(15,j); } for (k=0;k<16;k++) { Display(k,0); } for (n=0;n<16;n++) { Display(n,15); } for (n=4;n<12;n++) { Display(n,3); Display(n,8); } for (n=4;n<8;n++) { Display(4,n); Display(11,n); } } } void Put_food() { Display(x_food,y_food); } void Snake_Body() { uchar i; for(i=0;i<length;i++) { Display(x[i],y[i]); } } /**************/ //是否吃东西 /*************/ char Eat_Food(char i) { char j; if(((x[length-1]==x_food)&&(y[length-1]==y_food))||i) { length++; if (length<Snake) { if(Level==1&&Init_Snake_flag==0) //等级以及速度的处理 { switch(length) { case 6: SPEED = 40;break; case 8: SPEED = 35;break; case 10: SPEED = 30;break; case 14: { Init_Snake_flag=1; SPEED = 30; Level = 2; Play_en=0; } break; default:break; } } if(Level==2&&Init_Snake_flag==0) { switch(length) { case 6: SPEED = 25;break; case 8: SPEED = 20;break; case 10: SPEED = 15;break; case 14: { Init_Snake_flag=1; SPEED = 15; Level = 3; Play_en=0; } break; default:break; } } if(Level==3&&Init_Snake_flag==0) { switch(length) { case 6: SPEED = 15;break; case 8: SPEED = 10;break; case 10: SPEED = 7;break; case 14: { Init_Snake_flag=1; SPEED = 50; Level = 1; Play_en=0; } break; default:break; } } } x[length-1] = x_food+addx; y[length-1] = y_food+addy; j=x[0]+rand()%10; //产生随机数 if(j>=0&&j<=15) x_food=j; else x_food=x[0]; j=y[0]+rand()%10; if(j>=0&&j<=15) y_food=j; else y_food=y[0]; return 1; } return 0; } /***蛇初始化**/ void Init_Snake() { char i; Wait_Time=0; length=3; x_food=7; y_food=8; addx=addy=0; for(i=0; i<length; i++) { x[i]=5+i;y[i]=3; } } void Init_Time(void) { TMOD = 0x01; TH0 = 0xd8; TL0 = 0xF0; ET0 = 1; EA = 1; } void start_play() { TR0 = 1; } void stop_play() { TR0 = 0; } void Game_play() { if (Wait_Time >= SPEED) { Wait_Time = 0; for(i=0;i<length-1;i++) { x[i]=x[i+1]; y[i]=y[i+1]; } if(!Eat_Food(0)) { x[length-1]=x[length-1]+addx; y[length-1]=y[length-1]+addy; } } } void main() { char n; Init_Snake_flag=0; Init_Snake(); SPEED=50; Level=1; temp=0; P0=0xff; Init_Time(); stop_play(); Mode_flag=0; while(1) { if (Mode_flag==0) P0=0xfe; else P0=0xf7; if(addx!=0||addy!=0) { start_play(); } else { stop_play(); Key_Scan(); } if (Init_Snake_flag==1) { Init_Snake(); Init_Snake_flag=0; } Snake_Body(); Put_food(); if (Mode_flag==0) { if(temp==1) { Play_en=0; P0=0x0c; Init_Snake_flag=1; if (Level==2) //判断是否碰撞,如果碰撞了则降一个级别 { Level=1; SPEED = 50; } else if (Level==3) { Level=2; SPEED = 30; } else { Level=1; SPEED = 50; } Sad_flag=1; temp=0; } if(Sad_flag==1) { Sad(); } if(Play_en==1) { P0=0xff; Sad_flag=0; } } } } void Timer0() interrupt 1 { TH0 = 0xd8; TL0 = 0xF0; Wait_Time++; Key_Scan(); if (Mode_flag==0) { Game_play(); Knock(); } else { Game_play_super(); } }