基于51單片機(jī)的貪吃蛇設(shè)計(jì)

設(shè)計(jì)要求

①制作一個(gè)的貪吃蛇游戲，系統(tǒng)以單片機(jī)為控制器，用四個(gè)輸入端表示四個(gè)控制鍵（上下左右）。

②游戲初始化蛇的節(jié)數(shù)，以及障礙墻壁。

③當(dāng)蛇的頭碰到障礙墻壁或蛇的身體時(shí)自動(dòng)結(jié)束。

it D0=P2^0;
sbit D1=P2^1;
sbit D2=P2^2;
sbit D3=P2^3;
sbit KEY1=P3^5;
sbit KEY2=P3^4;
sbit KEY3=P3^3;
sbit KEY4=P3^2;

#define X1 P0
#define X2 P1

u8 Date[32]=
{
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
	0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
};//點(diǎn)陣屏顯示數(shù)據(jù)
u8 snake_turn_point[20]={0};//存儲(chǔ)蛇尾的轉(zhuǎn)折點(diǎn)
u32 snake_turn=0;//相應(yīng)轉(zhuǎn)點(diǎn)為左轉(zhuǎn)還是右轉(zhuǎn) 0為左轉(zhuǎn)1為右轉(zhuǎn)
u8 snake_cd=2;//蛇的長度 初始值為2
u8 smake_head_x=10;//蛇頭的x軸坐標(biāo)
u8 smake_head_y=10;//蛇頭的y軸坐標(biāo)
u8 smake_tail_x=10;//蛇尾的x軸坐標(biāo)
u8 smake_tail_y=11;//蛇尾的y軸坐標(biāo)
u8 snake_fx=3;//蛇的運(yùn)動(dòng)方向  1:上 2:下 3:左 4:右
u8 snake_sd=10;//運(yùn)動(dòng)速度
u8 snake_turn_time=0;//蛇的尾巴剩余轉(zhuǎn)點(diǎn)
u8 snake_tail_fx=3;//蛇尾運(yùn)動(dòng)方向
u8 food_x=5;//食物的x軸坐標(biāo)
u8 food_y=5;//食物的y軸坐標(biāo)
u8 food_x_next=10;//下一個(gè)食物的x軸坐標(biāo)
u8 food_y_next=10;//下一個(gè)食物的y軸坐標(biāo)

void Display(void);//顯示函數(shù)
void InitTimer0(void);//定時(shí)器中斷初始化 10ms
void Key_Scan(void);//按鍵掃描函數(shù)
void Write_Date(u8 x,u8 y,u8 a);//對(duì)點(diǎn)的寫操作
void snake_move(void);//蛇的移動(dòng)
void game_over(void);//游戲結(jié)束 顯示完
void creat_food();//生產(chǎn)食物

void main(void)
{
	InitTimer0();//初始化定時(shí)器
	Write_Date(food_x,food_y,1);
	while(1)
	{
		Display();
		Key_Scan();
	}
}

void InitTimer0(void)
{
	TMOD = 0x01;
	TH0 = 0x0D8;
	TL0 = 0x0F0;
	EA = 1;
	ET0 = 1;
	TR0 = 1;
}

void Display(void)
{
	X1=0x00;	X2=0x00;	D3=0;	D2=0;	D1=0;	D0=0;	X1=Date[0];		X2=Date[1];
	X1=0x00;	X2=0x00;	D3=0;	D2=0;	D1=0;	D0=1;	X1=Date[2];		X2=Date[3];
	X1=0x00;	X2=0x00;	D3=0;	D2=0;	D1=1;	D0=0;	X1=Date[4];		X2=Date[5];
	X1=0x00;	X2=0x00;	D3=0;	D2=0;	D1=1;	D0=1;	X1=Date[6];		X2=Date[7];
	X1=0x00;	X2=0x00;	D3=0;	D2=1;	D1=0;	D0=0;	X1=Date[8];		X2=Date[9];
	X1=0x00;	X2=0x00;	D3=0;	D2=1;	D1=0;	D0=1;	X1=Date[10];	X2=Date[11];
	X1=0x00;	X2=0x00;	D3=0;	D2=1;	D1=1;	D0=0;	X1=Date[12];	X2=Date[13];
	X1=0x00;	X2=0x00;	D3=0;	D2=1;	D1=1;	D0=1;	X1=Date[14];	X2=Date[15];
	X1=0x00;	X2=0x00;	D3=1;	D2=0;	D1=0;	D0=0;	X1=Date[16];	X2=Date[17];
	X1=0x00;	X2=0x00;	D3=1;	D2=0;	D1=0;	D0=1;	X1=Date[18];	X2=Date[19];
	X1=0x00;	X2=0x00;	D3=1;	D2=0;	D1=1;	D0=0;	X1=Date[20];	X2=Date[21];
	X1=0x00;	X2=0x00;	D3=1;	D2=0;	D1=1;	D0=1;	X1=Date[22];	X2=Date[23];
	X1=0x00;	X2=0x00;	D3=1;	D2=1;	D1=0;	D0=0;	X1=Date[24];	X2=Date[25];
	X1=0x00;	X2=0x00;	D3=1;	D2=1;	D1=0;	D0=1;	X1=Date[26];	X2=Date[27];
	X1=0x00;	X2=0x00;	D3=1;	D2=1;	D1=1;	D0=0;	X1=Date[28];	X2=Date[29];
	X1=0x00;	X2=0x00;	D3=1;	D2=1;	D1=1;	D0=1;	X1=Date[30];	X2=Date[31];
}

void Key_Scan(void)
{
	static fx=3;
	if(KEY1==0)
		snake_fx=1;
	if(KEY2==0)
		snake_fx=2;
	if(KEY3==0)
		snake_fx=3;
	if(KEY4==0)
		snake_fx=4;
	
	if(fx!=snake_fx)
	{
		snake_turn_point[snake_turn_time]|=snake_fx*16;//保存蛇尾拐點(diǎn)方向
		if(snake_fx==1||snake_fx==2)
			snake_turn_point[snake_turn_time]+=smake_head_y;
		else if(snake_fx==3||snake_fx==4)
			snake_turn_point[snake_turn_time]+=smake_head_x; 		//保存蛇尾拐點(diǎn)的坐標(biāo)
		snake_turn_time++;
		fx=snake_fx;
	}
}

void tail_turn()
{
	u8 i;
	for(i=0;i<snake_turn_time;i++)
	{
		snake_turn_point[i]=snake_turn_point[i+1];
	}
	snake_turn_time-=1;
}
void res_food()
{
	food_x=food_x_next;
	food_y=food_y_next;
	Write_Date(food_x,food_y,1);
}
void snake_move(void)
{
	u8 dat=0x01;
	u8 bj_get_food=0;
	if(smake_head_y==0&&snake_fx==3)
		game_over();
	if(smake_head_x==0&&snake_fx==1)
		game_over();									//判斷蛇頭是否碰到上、左墻壁
	
	if(snake_fx==1)
	{
		if(!((smake_head_x-1==food_x)&&(smake_head_y==food_y)))
		{
			Write_Da

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