经典游戏贪吃蛇代码(c++ 编写)

/* 头文件 */
#include
#include
using namespace std;
#ifndef SNAKE_H
#define SNAKE_H


class Cmp
{
friend class Csnake;
int rSign; //横坐标
int lSign; //竖坐标
public:
//friend bool isDead(const Cmp& cmp);
Cmp(int r,int l)
{
setPoint(r,l);
}
Cmp(){}
void setPoint(int r,int l)
{
rSign=r;
lSign=l;
}
Cmp operator-(const Cmp &m)const
{
return Cmp(rSign - m.rSign,lSign - m.lSign);
}
Cmp operator+(const Cmp &m)const
{
return Cmp(rSign + m.rSign,lSign + m.lSign);
}
};

const int maxSize = 5; //初始蛇身长度

class Csnake
{
Cmp firstSign; //蛇头坐标
Cmp secondSign;//蛇颈坐标
Cmp lastSign; //蛇尾坐标
Cmp nextSign; //预备蛇头
int row; //列数
int line; //行数
int count; //蛇身长度

vector > snakeMap;//整个游戏界面
queue snakeBody; //蛇身
public:
int GetDirections()const;
char getSymbol(const Cmp& c)const //获取指定坐标点上的字符
{
return snakeMap[c.lSign][c.rSign];
}
Csnake(int n) //初始化游戏界面大小
{
if(n<20)line=20+2;
else if(n>30)line = 30 + 2;
else line=n+2;
row=line*3+2;
}
bool isDead(const Cmp& cmp)
{
return ( getSymbol(cmp)=='c' || cmp.rSign == row-1 || cmp.rSign== 0 || cmp.lSign == line-1 || cmp.lSign == 0 );
}
void InitInstance(); //初始化游戏界面
bool UpdataGame(); //更新游戏界面
void ShowGame(); //显示游戏界面
};
#endif // SNAKE_H

====================================================================

/* 类的 实现 及 应用*/
#include
#include
#include
#include "snake.h"
using namespace std;

//测试成功
void Csnake::InitInstance()
{
snakeMap.resize(line); // snakeMap[竖坐标][横坐标]
for(int i=0;i{
snakeMap[i].resize(row);
for(int j=0;j{
snakeMap[i][j]=' ';
}
}

for(int m=1;m{
//初始蛇身
snakeMap[line/2][m]='c';
//将蛇身坐标压入队列
snakeBody.push(Cmp(m,(line/2)));
//snakeBody[横坐标][竖坐标]
}

//链表头尾
firstSign=snakeBody.back();
secondSign.setPoint(maxSize-1,line/2);
}

//测试成功
int Csnake::GetDirections()const
{
if(GetKeyState(VK_UP)<0) return 1; //1表示按下上键
if(GetKeyState(VK_DOWN)<0) return 2; //2表示按下下键
if(GetKeyState(VK_LEFT)<0) return 3; //3表示按下左键
if(GetKeyState(VK_RIGHT)<0)return 4; //4表示按下右键
return 0;
}

bool Csnake::UpdataGame()
{
//-----------------------------------------------
//初始化得分0
static int score=0;
//获取用户按键信息
int choice;
choice=GetDirections();
cout<<"Total score: "</

/随机产生食物所在坐标
int r,l;
//开始初始已经吃食，产生一个食物
static bool eatFood=true;
//如果吃了一个，才再出现第2个食物
if(eatFood)
{
do
{
//坐标范围限制在（1，1）到（line-2,row-2）对点矩型之间
srand(time(0));

r=(rand()%(row-2))+1; //横坐标
l=(rand()%(line-2))+1;//竖坐标
//如果随机产生的坐标不是蛇身，则可行
//否则重新产生坐标
if(snakeMap[l][r]!='c')
{
snakeMap[l][r]='*';
}
}while (snakeMap[l][r]=='c');
}

switch (choice)
{
case 1://向上
//如果蛇头和社颈的横坐标不相同，执行下面操作
if(firstSign.rSign!=secondSign.rSign)nextSign.setPoint(firstSign.rSign,firstSign.lSign-1);
//否则，如下在原本方向上继续移动
else nextSign=firstSign+(firstSign-secondSign); break;

case 2://向下
if(firstSign.rSign!=secondSign.rSign)nextSign.setPoint(firstSign.rSign,firstSign.lSign+1);
else nextSign=firstSign+(firstSign-secondSign); break;

case 3://向左
if(firstSign.lSign!=secondSign.lSign)nextSign.setPoint(firstSign.rSign-1,firstSign.lSign);
else nextSign=firstSign+(firstSign-secondSign);
break;

case 4://向右
if(firstSign.lSign!=secondSign.lSign)nextSign.setPoint(firstSign.rSign+1,firstSign.lSign);
else nextSign=firstSign+(firstSign-secondSign);
break;

default:
nextSign=firstSign+(firstSign-secondSign);
}

//----------------------------------------------------------
if(getSymbol(nextSign)!='*' && !isDead(nextSign)) //如果没有碰到食物(且没有死亡的情况下)，删除蛇尾，压入新的蛇头
{
//删除蛇尾
lastSign=snakeBody.front();
snakeMap[lastSign.lSign][lastSign.rSign]=' ';
snakeBody.pop();
//更新蛇头
secondSign=firstSign;
//压入蛇头
snakeBody.push(nextSign);
firstSign=snakeBody.back();
snakeMap[firstSign.lSign][firstSign.rSign]='c';
//没有吃食
eatFood=false;
return true;
}

//-----吃食-----
else if(getSymbol(nextSign)=='*' && !isDead(nextSign))
{
secondSign=firstSign;
snakeMap[nextSign.lSign][nextSign.rSign]='c';
//只压入蛇头
snakeBody.push(nextSign);
firstSign=snakeBody.back();
eatFood=true;
//加分
score+=20;
return true;
}

//-----死亡-----
else {cout<<"Dead"<}


void Csnake::ShowGame()
{
for(int i=0;i{
for(int j=0;jcout<cout<}

Sleep(1);
system("cls");
}


======================================================================

/*主函数部分 */
#include
#include "snake.h"
#include
using namespace std;

int main()
{
Csnake s(20);
s.InitInstance();
//s.ShowGame();
int noDead;
do
{
s.ShowGame();
noDead=s.UpdataGame();
}while (noDead

);

system("pause");
return 0;
}