tanchishe_C51.rar

/*--------------------------------------------------------------*/ //LED8*8显示 //573输出数据，CPU进行列扫描，列扫描，低电平有效 #include <reg52.h> /*--------------------------------------------------------------*/ //接口定义 sfr DB = 0x90; sbit LE = P3^7; sbit OE = P3^6; sbit K1 = P3^2; sbit K2 = P3^3; sbit K3 = P3^4; sbit K4 = P3^5; sbit K5 = P3^1; sbit BP = P0^0; sbit MT = P0^1; /*--------------------------------------------------------------*/ //全局变量定义 #define len 30 //最大长度 unsigned char disram[8]; //显示缓冲区 unsigned char x[len],y[len];//蛇身坐标 bit on_off; //显示开关,0--关闭；1--开启 bit inverse; //反色显示,0--关闭；1--开启 char dx, dy; unsigned char ID; unsigned char speed; //移动速度 unsigned char level; //关数 unsigned char life; //生命值 void key_scan(void); /*--------------------------------------------------------------*/ //定时器初始化 void T0_init(void) { TMOD |= 0x01; TH0 = 0xf8; //2ms TL0 = 0x36; IE |= 0x82; PT0 = 1; TR0 = 1; } /*--------------------------------------------------------------*/ //定时器初始化 void T1_init(void) { TMOD |= 0x10; TH1 = 0x00; //65ms TL1 = 0x00; IE |= 0x88; TR1 = 1; } /*-------------- ------------------------------------------------*/ //清除显示缓冲区,即清屏 void clr_ram(void) { unsigned char i; for(i = 0; i < 8; i++) disram[i] = 0x00; } /*--------------------------------------------------------------*/ //画点函数,一次只显示一个点 //点阵左上角坐标为(0, 0) 右下角坐标为(7, 7) //横坐标为x:0~7 纵坐标为y:0~7 /*void gotoxy(unsigned char x, unsigned char y) { clr_ram(); disram[y] = 0x01 << x; } /*--------------------------------------------------------------*/ //画点函数,保留上次绘图 //点阵左上角坐标为(0, 0) 右下角坐标为(7, 7) //横坐标为x:0~7 纵坐标为y:0~7 /*void point(unsigned char x, unsigned char y) { disram[y] |= 0x01 << x; } /*--------------------------------------------------------------*/ //画点函数,擦点或者绘点 //点阵左上角坐标为(0, 0) 右下角坐标为(7, 7) //横坐标为x:0~7 纵坐标为y:0~7 //k = 1 --绘点 k = 0 --擦点 void point1(unsigned char x, unsigned char y, bit k) { if(k) disram[y] |= 0x01 << x; //绘点 else disram[y] &= ~(0x01 << x); //擦点 } /*--------------------------------------------------------------*/ //定时器中断服务 void T0_intservice(void) interrupt 1 //每次只扫描一行的数据,每秒扫描500次（行），一页扫描要16次，每秒扫31.25 { //页（帧） static unsigned char n; TR1 = 0; TH0 = 0xf8; //2ms TL0 = 0x36; OE = 1; //高阻(高阻态) if(on_off) DB = 0x01 << n; //开始列扫描 else DB = 0x00; //关闭显示 LE = 1; //传送 LE = 0; //锁存 if(inverse) DB = disram[n]; //反色显示 else DB = ~disram[n]; //正常显示(n代表第几行，即y) OE = 0; //输出显示 n++; if(n == 8) n = 0; //循环扫描 TR1 = 1; } /*--------------------------------------------------------------*/ //定时器中断服务 void T1_intservice(void) interrupt 3 { TH1 = 0x00; TL1 = 0x00; key_scan(); } /*--------------------------------------------------------------*/ //延时100000+1us 函数定义 void delay(void) { unsigned char i,j,k; for(i=156;i>0;i--) for(j=58;j>0;j--) for(k=4;k>0;k--); } /*--------------------------------------------------------------*/ //蜂鸣器 void beep(void) { BP = 0; delay(); BP = 1; } /*--------------------------------------------------------------*/ //按键扫描 void key_scan(void) { if(K1 == 0) //上 { if(ID == 0) {dx = 0; dy = -1;} if(ID == 1 && speed > 1) //加速 { speed--; beep(); //声音指示 while(K1 == 0); } if(ID == 2 && level < 17) //选关 { level++; beep(); //声音指示 while(K1 == 0); } } if(K2 == 0) //下 { if(ID == 0) {dx = 0; dy = 1;} if(ID == 1 && speed < 15) //减速 { speed++; beep(); //声音指示 while(K2 == 0); } if(ID == 2 && level > 0) //选关 { level--; beep(); //声音指示 while(K2 == 0); } } if(K3 == 0) //左 { if(ID == 0) {dy = 0; dx = -1;} if(ID == 1) inverse = 0; //正常显示 if(ID == 2) on_off = 1; //开启显示 } if(K4 == 0) //右 { if(ID == 0) {dy = 0; dx = 1;} if(ID == 1) inverse = 1; //反色显示 if(ID == 2) on_off = 0; //关闭显示 } if(K5 == 0) //中 { ID++; if(ID == 4) ID = 0; beep(); //声音指示 while(K5 == 0); } } /*--------------------------------------------------------------*/ //定点显示，一次只显示一个点 void gotoxy(unsigned char x, unsigned char y) { OE = 1; //高阻 DB = (0x01 << y); LE = 1; //传送 LE = 0; //锁存 DB = ~(0x01 << x); OE = 0; //输出显示 beep(); //声音指示 delay(); } /*--------------------------------------------------------------*/ //通关演示 void congrate(void) { char i, j; TR0 = 0; TR1 = 0; for(j = 0; j < 5; j++) { for(i = j ; i < 8-j; i++)gotoxy(j, i); for(i = j+1 ; i < 8-j; i++)gotoxy(i, 7-j); for(i = j+1 ; i < 8-j; i++)gotoxy(7-j, 7-i); for(i = j+1 ; i < 7-j; i++)gotoxy(7-i, j); } for(j = 4; j >= 0; j--) { for(i = 6-j ; i >= j+1; i--)gotoxy(7-i, j); for(i = 7-j ; i >= j+1; i--)gotoxy(7-j, 7-i); for(i = 7-j ; i >= j+1; i--)gotoxy(i, 7-j); for(i = 7-j ; i >= j; i--)gotoxy(j, i); } } /*--------------------------------------------------------------*/ //主函数 void main (void) { unsigned char i; //通用循环变量 unsigned char num; //蛇的长度 bit food, over; //食物和结束标志位 unsigned char foodx, foody; //食物坐标 life = 3; speed = 8; num = 2; T0_init(); //定时器初始化 T1_init(); on_off = 1; //开显示 inverse = 0; //正常显示 clr_ram(); //清显示缓冲区 x[0] = 1; //初始化位置 y[0] = 2; dx = 1; //向右运动 while(1) { x[0] += dx; y[0] += dy; //蛇头 x[0] &= 0x07; y[0] &= 0x07; //穿墙 if(!food) //放置食物 { again: foodx = TL0&0x07; //随机 foody = TH0&0x07; for(i = 0; i < num; i++) { if(foodx == x[i] && foody == y[i]) goto again; } point1(foodx, foody, 1); //显示食物 food = 1; //置食物标志位 } if(x[0] == foodx && y[0] == foody) //吃到食物 { beep(); //声音指示 num++; //蛇长增加1节 food = 0; //清食物标志位 } for(i = 0; i < num; i++) //显示蛇身 point1(x[i], y[i], 1); point1(x[i], y[i], 0); //清蛇尾,也可以写成point1(x[num], y[num], 0);因前面加了i=num成立 for(i = 1; i < num; i++) //判断是否自撞 { if((x[0] == x[i]) && (y[0] == y[i])) over = 1; //置结束标志位 } for(i = 0; i < speed; i++) delay(); //蛇运动速度 for(i = 0; i < num; i++) //蛇移动蛇身 { x[num-i] = x[num-i-1]; y[num-i] = y[num-i-1]; } /* if(x[0]>7||y[0]>7) //判断是否撞墙 { over = 1; //置结束标志位 } */ if(num > 5 + level) //过关 { if(num > 8) //通关!!! { while(1){congrate();inverse = ~inverse;} } delay(); beep(); //声音指示 MT = 0; delay(); MT = 1; //振动指示 if(speed > 1) speed--; //速度加一 num = 2; //重定蛇长 level += 1; //总的蛇长增加1 clr_ram(); //清除屏幕 goto again; //新的一关开始 } if(over) //判断是否结束 { MT = 0; delay(); MT = 1; //振动指示 clr_ram(); //清除屏幕 num = 2; //重新设定蛇长 point1(foodx, foody, 1); //重新放置食物 x[0] = 1; y[0] = 2; //起点位置 dx = 1; //向右运动 over = 0; //清结束标志位 life--; //生命值减1 } if(!life) congrate(); } }