C++实现2048小游戏

代码如下：

 #define _CRT_SECURE_NO_WARNINGS//去掉编译器内部扩增问题
 #include<stdio.h>
 #include<stdlib.h>
 #include<math.h>
 #include<graphics.h>//需要下载图形库
 #include<conio.h>
 #include<time.h>
 #include<string>
 #include<fstream>
 #include<iostream>
 #include<sstream>
 using namespace std;

 namespace
 {
 IMAGE image[];
 int imageIndex[];
 int map[][] = {  };
 bool isOver = true;
 bool gameOver = false;
 enum direction
 {
 Up, Down, Left, Right
 };
 };

 void SetImageIndex();//设置图片编号
 void loadResource();
 void drawMap();
 void randIntNum();
 void keyDownAndDraw();
 bool TurnLeft(int s[][]);
 void ChangeOnKeyDown(direction Direction);

 int main()
 {
 SetImageIndex();
 loadResource();
 initgraph(*,*+);//游戏界面大小
 drawMap();
 keyDownAndDraw();
 system("pause");//防止闪屏
 //closegraph();
 //system("pause");
 return ;
 }
 void SetImageIndex()
 {
 imageIndex[] = ;
 for (int i = ; i < ; i++)
 {
 imageIndex[i] = int(pow(, i));
 }
 }
 void loadResource()//加载图片
 {
 for (int i = ; i < ; i++)
 {
 char fileName[] = "";
 sprintf(fileName, "%d.bmp", imageIndex[i]);//拼接
 loadimage(image + i, fileName,,);
 }
 }

 //画地图
 void drawMap()
 {
 string out;
 int HistryHighlyScore = ;
 ifstream IScore("Score.txt");//创建文件读取历史最高分
 if (!IScore)
 {
 ofstream OScore("Score.txt");
 IScore.open("Score.txt");
 }
 getline(IScore, out);
 char Score[];
 char HighlyScore[];
 int Sum=;
 setbkcolor(RGB(, , ));
 cleardevice();
 settextcolor(WHITE);//设置文字颜色
 settextstyle(, , "楷体");//设置文字格式
 outtextxy(, , "2048游戏");
 settextcolor(YELLOW);//设置文字颜色
 settextstyle(, , "楷体");//设置文字格式
 for (int i = ; i < ; i++)//计算分数
 {
 for (int j = ; j < ; j++)
 {
 if (map[i][j]>)
 {
 Sum += map[i][j] * sqrt(map[i][j]);
 }
 }
 }
 sprintf(Score, "分数:%d", Sum);
 outtextxy(, ,Score);
 for (int i = ; i < out.length(); i++)
 {
 HighlyScore[i] = out[i];
 }
 stringstream mid;
 mid << out;
 mid >> HistryHighlyScore;
 if (HistryHighlyScore>Sum)
 {
 HighlyScore[out.length()] = '\0';
 settextcolor(RED);//设置文字颜色
 settextstyle(, , "楷体");//设置文字格式
 outtextxy(, , "历史最高:");
 outtextxy(, , HighlyScore);
 }
 else
 {
 char Score1[];
 settextcolor(RED);//设置文字颜色
 settextstyle(, , "楷体");//设置文字格式
 sprintf(Score1, "历史最高:%d", Sum);
 outtextxy(, ,Score1);
 ofstream OScore1;
 OScore1.open("Score.txt");
 OScore1<<Sum;
 OScore1.close();
 }
 IScore.close();
 //根据二维数组去画图
 int x, y, k;
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 x =  * j;
 y =  * i + ;
 for ( k = ; k < ; k++)
 {
 if (imageIndex[k] == map[i][j])
 {
 break;
 }
 }
 putimage(x,y,image+k);
 }
 }
 isOver = true;
 }

 //随机产生2或者4;
 void randIntNum()
 {
 bool haszero = false;
 bool isOk=false;
 srand((unsigned)time(NULL)); //随机函数种子
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 if (map[i][j] == )
 {
 haszero = true;
 map[i][j] = (rand() % ) * ;
 if (map[i][j] == )
 {
 continue;
 }
 isOk = true;
 break;
 }
 }
 if (isOk)
 {
 break;
 }
 }
 if (!isOk)
 {
 isOk = false;
 if (haszero)
 {
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 if (map[i][j] == )
 {
 map[i][j] = ;
 isOk = true;
 break;
 }
 }
 if (isOk)
 {
 break;
 }
 }
 }
 }
 for (int i = ; i < ; i++)//检测最后一步是否留有空位，若全满游戏结束
 {
 for (int j = ; j < ; j++)
 {
 if (map[i][j] == )
 {
 drawMap();
 return;
 }
 }
 }
 for (int i = ; i < ; i++)//游戏失败则重置
 {
 for (int j = ; j < ; j++)
 {
 if (i==&&j==)
 {
 map[i][j] = ;
 continue;
 }
 map[i][j] = ;
 }
 }
 drawMap();
 }

 //按键响应
 void keyDownAndDraw()
 {
 while (true)
 {
 char key = _getch();//接收用户按键
 if (isOver)
 {
 isOver = false;
 switch (key)
 {
 case 'W':
 case'w':
 case :
 ChangeOnKeyDown(Up);
 break;
 case 'S':
 case's':
 case :
 ChangeOnKeyDown(Down);
 break;
 case 'a':
 case'A':
 case :
 ChangeOnKeyDown(Left);
 break;
 case 'D':
 case'd':
 case :
 ChangeOnKeyDown(Right);
 break;
 default:
 isOver = true;
 break;
 }
 }
 }
 }
 void ChangeOnKeyDown(direction Direction)
 {
 int Map[][] = {  };
 bool CanMove;
 switch (Direction)//将所有方向改为向左方向，并利用向左算法计算各个方向
 {
 case Up:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 Map[j][i] = map[i][j];
 }
 }
 break;
 case Down:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 Map[j][-i] = map[i][j];
 }
 }
 break;
 case Left:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 Map[i][j] = map[i][j];
 }
 }
 break;
 case Right:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 Map[i][-j] = map[i][j];
 }
 }
 break;
 default:
 break;
 }
 //向左算法
 CanMove=TurnLeft(Map);
 //将向左改回各自方向
 switch (Direction)
 {
 case Up:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 map[j][i] =Map[i][j];
 }
 }
 break;
 case Down:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 map[-j][i] = Map[i][j];
 }
 }
 break;
 case Left:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 map[i][j] = Map[i][j];
 }
 }
 break;
 case Right:
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 map[i][-j] = Map[i][j];
 }
 }
 break;
 default:
 break;
 }
 if (CanMove)
 {
 randIntNum();
 drawMap();
 }
 else
 {
 isOver = true;
 }
 };
 //算法
 bool TurnLeft(int Map[][])//按向左键进行合并
 {
 int k;
 int len;
 int Save[];
 int Move[][];
 bool CanMove = false;

 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 Move[i][j] = Map[i][j];
 }
 }
 for (int i = ; i < ; i++)
 {
 k = ;
 len = ;
 for (int j = ; j < ; j++)
 {
 if (Map[i][j]==)
 {
 continue;
 }
 for (k = j+; k < ; k++)
 {
 if (Map[i][k] !=  )
 {
 if (Map[i][j] == Map[i][k])
 {
 Map[i][j] *= ;
 Map[i][k] = ;
 }
 break;
 }
 }
 }
 for (int j = ; j < ; j++)
 {
 if (Map[i][j]!=)
 {
 Save[len]=Map[i][j];
 len++;
 }
 }
 for (int j = ; j < ; j++)
 {
 if (j<len)
 {
 Map[i][j] = Save[j];
 }
 else
 {
 Map[i][j] = ;
 }
 }
 }
 for (int i = ; i < ; i++)
 {
 for (int j = ; j < ; j++)
 {
 if (Move[i][j] != Map[i][j])
 {
 CanMove = true;
 };
 }
 }
 return CanMove;
 }

图形库地址：

https://easyx.cn/downloads/