自己写的2048小游戏的程序，为什么数字多的时候运行的很慢，要等一两秒才能变过来
程序代码：#include<iostream>
#include<conio.h>
#include<math.h>
#include<Windows.h>
#include<time.h>
#include<iomanip>
using namespace std;
int pan[4][4];
void showpan()//显示棋盘
{
system("cls");
system("color f9");
cout << setw(50) << "木木的2048" << endl;
cout << setw(60) << "--------------------" << endl;
for (int i = 0; i < 4; i++)
{
cout << setw(39) << " " << "|";
for (int j = 0; j < 4; j++)
{
if (pan[i][j] == 0)
cout << setw(4) << " " << "|";
else
{
cout << setw(4) << pan[i][j]<<"|" ;
}
}
cout << endl;
cout << setw(60) << "--------------------" << endl;
}
}
void newgame()//开始一个新游戏
{
for (int i = 0; i < 4; i++)
for (int j = 0; j < 4; j++)
pan[i][j] = 0;
srand((unsigned)time(NULL));
int m = rand() % 4;
int n = rand() % 4;
pan[m][n] = 2;
showpan();
}
int moveup()//上移
{
int flag = 0;
for (int j = 0; j < 4; j++)
{
for (int i = 0, k = 1; k < 4; k++)
{
if (pan[k][j] > 0)
{
if (pan[i][j] == 0)
{
pan[i][j] = pan[k][j];
pan[k][j] = 0;
}
else
{
if (pan[i][j] == pan[k][j])
{
pan[i][j] += pan[k][j];
pan[k][j] = 0;
}
else
{
pan[i + 1][j] = pan[k][j];
if (k != i + 1)
pan[k][j] = 0;
i += 1;
}
}
}
}
}
return flag;
}
int movedown()//下移
{
int flag = 0;
for (int j = 0; j < 4;j++)
{
for (int i=3, k = 2; k>=0; k--)
{
if (pan[k][j] > 0)
{
if (pan[i][j] == 0)
{
pan[i][j] = pan[k][j];
pan[k][j] = 0;
}
else
if (pan[i][j] == pan[k][j])
{
pan[i][j] += pan[k][j];
pan[k][j] = 0;
}
else
{
if (k != (i - 1))
{
pan[i - 1][j] = pan[k][j];
pan[k][j] = 0;
}
i--;
}
}
}
}return flag;
}
int moveleft()//左移
{
int flag = 0;
for (int i = 0; i< 4; i++)
{
for (int j=0,k =1; k <= 3; k++)
{
if (pan[i][k] > 0)
{
if (pan[i][j] == 0)
{
pan[i][j] = pan[i][k];
pan[i][k] = 0;
}
else
if (pan[i][j] == pan[i][k])
{
pan[i][j] += pan[i][k];
pan[i][k] = 0;
}
else
{
if ((j + 1) != k)
{
pan[i][j + 1] = pan[i][k];
pan[i][k] = 0;
}j++;
}
}
}
}return flag;
}
int moveright()//右移
{
int flag = 0;
for (int i = 0; i< 4; i++)
{
for (int k =2,j=3; k >= 0; k--)
{
if (pan[i][k] > 0)
{
if (pan[i][j] == 0)
{
pan[i][j] = pan[i][k];
pan[i][k] = 0;
}
else
if (pan[i][j] == pan[i][k])
{
pan[i][j] += pan[i][k];
pan[i][k] = 0;
}
else
{
if (k != (j - 1))
{
pan[i][j - 1] = pan[i][k];
pan[i][k] = 0;
}j--;
}
}
}
}return flag;
}
int panmax()//检测最大数
{
int max = 0;
for (int i = 0; i < 4;i++)
{
for (int j = 0; j < 4;j++)
{ if (max<pan[i][j])
{
max = pan[i][j];
}
}
}
return max;
}
int if2n(int x)
{
int flag = 0;
for (int n = 1; n < 12; n++)
{
if (x == pow(2, n))
flag = 1;
}return flag;
}
int ifwin()//检测是否游戏胜利
{
int flag = 0;
if (panmax() == 2048)
{
flag = 1;
cout << setw(40) << "可以啊，小伙子，你赢了" << endl;
}return flag;
}
int testup()//检测能否上移
{
int flag = 0;
for (int j = 0;j< 4;j++)
{
for (int i = 0; i <3; i++ )
{
if (if2n(pan[i][j] + pan[i + 1][j])&& (pan[i+1][j]))
flag = 1;
}
}return flag;
}
int testdown()//检测能否下移
{
int flag = 0;
for (int j = 0; j < 4; j++)
{
for (int i = 3; i > 0; i--)
{
if (if2n(pan[i][j] + pan[i - 1][j] )&&pan[i-1][j] != 0)
flag = 1;
}
}return flag;
}
int testleft()//检测能否左移
{
int flag = 0;
for (int i = 0; i< 4; i++)
{
for (int j = 0;j < 3; j++)
{
if ((if2n(pan[i][j] + pan[i][j+1])==1 )&&(pan[i][j+1]!= 0))
flag = 1;
}
}return flag;
}
int testright()//检测能否右移
{
int flag = 0;
for (int i = 0; i < 4; i++)
{
for (int j = 3 ; j >0; j--)
//if (pan[k][i] > 0)
{
if (if2n(pan[i][j] +pan[i][j-1])&& pan[i][j-1] != 0)
flag = 1;
;
}
}return flag;
}
int gameover()//判断游戏是否结束
{
int flag = 0;
if ((testup() + testdown() + testleft() + testright()) == 0)
{
flag = 1;
cout << setw(30) << "不行啊，小伙子，继续努力" << endl;
}
return flag;
}
void add()
{
int flag = 1;
while (flag)
{
srand((unsigned)time(NULL));
int m = rand() % 4;
int n = rand() % 4;
if (pan[m][n] == 0)
{
pan[m][n] = 2 ;
flag = 0;
}
}
}
int GetDirection() //读取方向
{
int ret = 0;
do
{
int ch= _getch();
if (isascii(ch))
continue;
ch = _getch();
switch (ch)
{
case 72:
ret = 2; // top
break;
case 75:
ret = 1; // left
break;
case 77:
ret = 3; // right
break;
case 80:
ret = 4; // down
break;
default:
break;
}
} while (ret == 0);
return ret;
}
int main()
{
int makesure = 1;
while (makesure)
{
system("cls");
system("color f9");
newgame();
while ((ifwin() + gameover())==0)
{
int c = GetDirection();
switch (c)
{
case 2:
if (testup() == 1)
{
moveup();
add();
system("cls");
showpan();
}
break;
case 4:
if (testdown() == 1)
{
movedown();
add();
system("cls");
showpan();
}
break;
case 1:
if (testleft() == 1)
{
moveleft();
add();
system("cls");
showpan();
}
break;
case 3:
if (testright() == 1)
{
moveright();
add();
system("cls");
showpan();
}
break;
default:
break;
}
}
int max = panmax();
cout << "小伙子，你才拿了" << max << "分" << endl;
cout << "如果要再来一盘就输入1，不玩了就输入0" << endl;
cout << "来：" << endl;
cin >> makesure;
if (makesure != 1 && makesure != 0)
{
cout << "小伙子，别瞎写，重来:" << endl;
cin >> makesure;
}
}
}
