程式碼如下：

#define _CRT_SECURE_NO_WARNINGS//去掉編譯器內部擴增問題
#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<graphics.h>//需要下載圖形庫
#include<conio.h>
#include<time.h>
#include<string>
#include<fstream>
#include<iostream>
#include<sstream>
using namespace std;

namespace
{
IMAGE image[12];
int imageIndex[12];
int map[4][4] = { 2 };
bool isOver = true;
bool gameOver = false;
enum direction
{
Up, Down, Left, Right
};
};

void SetImageIndex();//設定圖片編號
void loadResource();
void drawMap();
void randIntNum();
void keyDownAndDraw();
bool TurnLeft(int s[4][4]);
void ChangeOnKeyDown(direction Direction);

int main()
{
SetImageIndex();
loadResource();
initgraph(60*4,60*4+120);//遊戲介面大小
drawMap();
keyDownAndDraw();
system("pause");//防止閃屏
//closegraph();
//system("pause");
return 0;
}
void SetImageIndex()
{
imageIndex[0] = 0;
for (int i = 1; i < 12; i++)
{
imageIndex[i] = int(pow(2, i));
}
}
void loadResource()//載入圖片
{
for (int i = 0; i < 12; i++)
{
char fileName[20] = "";
sprintf(fileName, "%d.bmp", imageIndex[i]);//拼接
loadimage(image + i, fileName,60,60);
}
}

//畫地圖
void drawMap()
{
string out;
int HistryHighlyScore = 0;
ifstream IScore("Score.txt");//建立檔案讀取歷史最高分
if (!IScore)
{
ofstream OScore("Score.txt");
IScore.open("Score.txt");
}
getline(IScore, out);
char Score[10];
char HighlyScore[100];
int Sum=0;
setbkcolor(RGB(244, 215, 215));
cleardevice();
settextcolor(WHITE);//設定文字顏色
settextstyle(35, 0, "楷體");//設定文字格式
outtextxy(50, 10, "2048遊戲");
settextcolor(YELLOW);//設定文字顏色
settextstyle(25, 0, "楷體");//設定文字格式
for (int i = 0; i < 4; i++)//計算分數
{
for (int j = 0; j < 4; j++)
{
if (map[i][j]>4)
{
Sum += map[i][j] * sqrt(map[i][j]);
}
}
}
sprintf(Score, "分數:%d", Sum);
outtextxy(10, 300,Score);
for (int i = 0; i < out.length(); i++)
{
HighlyScore[i] = out[i];
}
stringstream mid;
mid << out;
mid >> HistryHighlyScore;
if (HistryHighlyScore>Sum)
{
HighlyScore[out.length()] = '\0';
settextcolor(RED);//設定文字顏色
settextstyle(25, 0, "楷體");//設定文字格式
outtextxy(10, 330, "歷史最高:");
outtextxy(130, 330, HighlyScore);
}
else
{
char Score1[20];
settextcolor(RED);//設定文字顏色
settextstyle(25, 0, "楷體");//設定文字格式
sprintf(Score1, "歷史最高:%d", Sum);
outtextxy(10, 330,Score1);
ofstream OScore1;
OScore1.open("Score.txt");
OScore1<<Sum;
OScore1.close();
}
IScore.close();
//根據二維陣列去畫圖
int x, y, k;
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
x = 60 * j;
y = 60 * i + 55;
for ( k = 0; k < 12; k++)
{
if (imageIndex[k] == map[i][j])
{
break;
}
}
putimage(x,y,image+k);
}
}
isOver = true;
}

//隨機產生2或者4;
void randIntNum()
{
bool haszero = false;
bool isOk=false;
srand((unsigned)time(NULL)); //隨機函式種子
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
if (map[i][j] == 0)
{
haszero = true;
map[i][j] = (rand() % 3) * 2;
if (map[i][j] == 0)
{
continue;
}
isOk = true;
break;
}
}
if (isOk)
{
break;
}
}
if (!isOk)
{
isOk = false;
if (haszero)
{
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
if (map[i][j] == 0)
{
map[i][j] = 2;
isOk = true;
break;
}
}
if (isOk)
{
break;
}
}
}
}
for (int i = 0; i < 4; i++)//檢測最後一步是否留有空位，若全滿遊戲結束
{
for (int j = 0; j < 4; j++)
{
if (map[i][j] == 0)
{
drawMap();
return;
}
}
}
for (int i = 0; i < 4; i++)//遊戲失敗則重置
{
for (int j = 0; j < 4; j++)
{
if (i==0&&j==0)
{
map[i][j] = 2;
continue;
}
map[i][j] = 0;
}
}
drawMap();
}

//按鍵響應
void keyDownAndDraw()
{
while (true)
{
char key = _getch();//接收使用者按鍵
if (isOver)
{
isOver = false;
switch (key)
{
case 'W':
case'w':
case 72:
ChangeOnKeyDown(Up);
break;
case 'S':
case's':
case 80:
ChangeOnKeyDown(Down);
break;
case 'a':
case'A':
case 75:
ChangeOnKeyDown(Left);
break;
case 'D':
case'd':
case 77:
ChangeOnKeyDown(Right);
break;
default:
isOver = true;
break;
}
}
}
}
void ChangeOnKeyDown(direction Direction)
{
int Map[4][4] = { 0 };
bool CanMove;
switch (Direction)//將所有方向改為向左方向，並利用向左演算法計算各個方向
{
case Up:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
Map[j][i] = map[i][j];
}
}
break;
case Down:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
Map[j][3-i] = map[i][j];
}
}
break;
case Left:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
Map[i][j] = map[i][j];
}
}
break;
case Right:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
Map[i][3-j] = map[i][j];
}
}
break;
default:
break;
}
//向左演算法
CanMove=TurnLeft(Map);
//將向左改回各自方向
switch (Direction)
{
case Up:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
map[j][i] =Map[i][j];
}
}
break;
case Down:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
map[3-j][i] = Map[i][j];
}
}
break;
case Left:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
map[i][j] = Map[i][j];
}
}
break;
case Right:
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
map[i][3-j] = Map[i][j];
}
}
break;
default:
break;
}
if (CanMove)
{
randIntNum();
drawMap();
}
else
{
isOver = true;
}
};
//演算法
bool TurnLeft(int Map[4][4])//按向左鍵進行合併
{
int k;
int len;
int Save[4];
int Move[4][4];
bool CanMove = false;

for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
Move[i][j] = Map[i][j];
}
}
for (int i = 0; i < 4; i++)
{
k = 0;
len = 0;
for (int j = 0; j < 4; j++)
{
if (Map[i][j]==0)
{
continue;
}
for (k = j+1; k < 4; k++)
{
if (Map[i][k] != 0 )
{
if (Map[i][j] == Map[i][k])
{
Map[i][j] *= 2;
Map[i][k] = 0;
}
break;
}
}
}
for (int j = 0; j < 4; j++)
{
if (Map[i][j]!=0)
{
Save[len]=Map[i][j];
len++;
}
}
for (int j = 0; j < 4; j++)
{
if (j<len)
{
Map[i][j] = Save[j];
}
else
{
Map[i][j] = 0;
}
}
}
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
if (Move[i][j] != Map[i][j])
{
CanMove = true;
};
}
}
return CanMove;
}

圖形庫地址：

https://easyx.cn/downlo