【C++ 程序】 2048游戏

这个2048游戏是我编的第6个小游戏，历程相对比较顺利。

图形版程序见我的博客【C++ 程序】 2048游戏（EasyX 图形界面）。

程序

请使用(C++/11)标准编译该程序。

//This is a simple 2048 game.#include <iostream>
#include <vector>
#include <Windows.h>
#include <string>
#include <random>
#include <ctime>
#include <conio.h>
using namespace std;unsigned long score = 0;
int stop = 0;
string s0 = "    ";
string s2 = " 2  ";
string s4 = " 4  ";
string s8 = " 8  ";
string s16 = " 16 ";
string s32 = " 32 ";
string s64 = " 64 ";
string s128 = "128 ";
string s256 = "256 ";
string s512 = "512 ";
string s1024 = "1024";
string s2048 = "2048";
string s4096 = "4096";
string s8192 = "8192";vector<vector<string>> p = { {s0, s0, s0, s0}, {s0, s2, s0, s0}, {s0, s0, s0, s0}, {s0, s0, s0, s0} };int equal_int(string str)
{if (str == s2) return 4;else if (str == s4) return 8;else if (str == s8) return 16;else if (str == s16) return 32;else if (str == s32) return 64;else if (str == s64) return 128;else if (str == s128) return 256;else if (str == s256) return 512;else if (str == s512) return 1024;else if (str == s1024) return 2048;else if (str == s2048) return 4096;else if (str == s4096) return 8192;else return 0;
}string equal_str(string str)
{int num = equal_int(str);switch (num){case 4: return s4;case 8: return s8;case 16: return s16;case 32: return s32;case 64: return s64;case 128: return s128;case 256: return s256;case 512: return s512;case 1024: return s1024;case 2048: return s2048;case 4096: return s4096;case 8192: return s8192;default: return "    ";}
}void change(int n)
{switch (n){case 3: // leftfor (int i = 0; i != 4; i++){if (p[i][0] == s0){p[i][0] = p[i][1];p[i][1] = p[i][2];p[i][2] = p[i][3];p[i][3] = s0;}if (p[i][0] == s0){p[i][0] = p[i][1];p[i][1] = p[i][2];p[i][2] = s0;}if (p[i][0] == s0){p[i][0] = p[i][1];p[i][1] = s0;}if (p[i][1] == s0){p[i][1] = p[i][2];p[i][2] = p[i][3];p[i][3] = s0;}if (p[i][1] == s0){p[i][1] = p[i][2];p[i][2] = s0;}if (p[i][2] == s0){p[i][2] = p[i][3];p[i][3] = s0;}}for (int i = 0; i != 4; i++){if (p[i][0] == p[i][1] && p[i][0] != s0){score += equal_int(p[i][0]);p[i][0] = equal_str(p[i][0]);p[i][1] = p[i][2];p[i][2] = p[i][3];p[i][3] = s0;if (p[i][1] == p[i][2] && p[i][1] != s0){score += equal_int(p[i][1]);p[i][1] = equal_str(p[i][1]);p[i][2] = p[i][3];}}else if (p[i][1] == p[i][2] && p[i][1] != s0){score += equal_int(p[i][1]);p[i][1] = equal_str(p[i][1]);p[i][2] = p[i][3];p[i][3] = s0;}else if (p[i][2] == p[i][3] && p[i][2] != s0){score += equal_int(p[i][2]);p[i][2] = equal_str(p[i][2]);p[i][3] = s0;}}break;case 4: // rightfor (int i = 0; i != 4; i++){if (p[i][3] == s0){p[i][3] = p[i][2];p[i][2] = p[i][1];p[i][1] = p[i][0];p[i][0] = s0;}if (p[i][3] == s0){p[i][3] = p[i][2];p[i][2] = p[i][1];p[i][1] = s0;}if (p[i][3] == s0){p[i][3] = p[i][2];p[i][2] = s0;}if (p[i][2] == s0){p[i][2] = p[i][1];p[i][1] = p[i][0];p[i][0] = s0;}if (p[i][2] == s0){p[i][2] = p[i][1];p[i][1] = s0;}if (p[i][1] == s0){p[i][1] = p[i][0];p[i][0] = s0;}}for (int i = 0; i != 4; i++){if (p[i][3] == p[i][2] && p[i][3] != s0){score += equal_int(p[i][3]);p[i][3] = equal_str(p[i][3]);p[i][2] = p[i][1];p[i][1] = p[i][0];p[i][0] = s0;if (p[i][2] == p[i][1] && p[i][2] != s0){score += equal_int(p[i][2]);p[i][2] = equal_str(p[i][2]);p[i][1] = p[i][0];}}else if (p[i][2] == p[i][1] && p[i][2] != s0){score += equal_int(p[i][2]);p[i][2] = equal_str(p[i][2]);p[i][1] = p[i][0];p[i][0] = s0;}else if (p[i][1] == p[i][0] && p[i][1] != s0){score += equal_int(p[i][1]);p[i][1] = equal_str(p[i][1]);p[i][0] = s0;}}break;case 1: // upfor (int i = 0; i != 4; i++){if (p[0][i] == s0){p[0][i] = p[1][i];p[1][i] = p[2][i];p[2][i] = p[3][i];p[3][i] = s0;}if (p[0][i] == s0){p[0][i] = p[1][i];p[1][i] = p[2][i];p[2][i] = s0;}if (p[0][i] == s0){p[0][i] = p[1][i];p[1][i] = s0;}if (p[1][i] == s0){p[1][i] = p[2][i];p[2][i] = p[3][i];p[3][i] = s0;}if (p[1][i] == s0){p[1][i] = p[2][i];p[2][i] = s0;}if (p[2][i] == s0){p[2][i] = p[3][i];p[3][i] = s0;}}for (int i = 0; i != 4; i++){if (p[0][i] == p[1][i] && p[0][i] != s0){score += equal_int(p[0][i]);p[0][i] = equal_str(p[0][i]);p[1][i] = p[2][i];p[2][i] = p[3][i];p[3][i] = s0;if (p[1][i] == p[2][i] && p[1][i] != s0){score += equal_int(p[1][i]);p[1][i] = equal_str(p[1][i]);p[2][i] = p[3][i];}}else if (p[1][i] == p[2][i] && p[1][i] != s0){score += equal_int(p[1][i]);p[1][i] = equal_str(p[1][i]);p[2][i] = p[3][i];p[3][i] = s0;}else if (p[2][i] == p[3][i] && p[2][i] != s0){score += equal_int(p[2][i]);p[2][i] = equal_str(p[2][i]);p[3][i] = s0;}}break;case 2: // downfor (int i = 0; i != 4; i++){if (p[3][i] == s0){p[3][i] = p[2][i];p[2][i] = p[1][i];p[1][i] = p[0][i];p[0][i] = s0;}if (p[3][i] == s0){p[3][i] = p[2][i];p[2][i] = p[1][i];p[1][i] = s0;}if (p[3][i] == s0){p[3][i] = p[2][i];p[2][i] = s0;}if (p[2][i] == s0){p[2][i] = p[1][i];p[1][i] = p[0][i];p[0][i] = s0;}if (p[2][i] == s0){p[2][i] = p[1][i];p[1][i] = s0;}if (p[1][i] == s0){p[1][i] = p[0][i];p[0][i] = s0;}}for (int i = 0; i != 4; i++){if (p[3][i] == p[2][i] && p[3][i] != s0){score += equal_int(p[3][i]);p[3][i] = equal_str(p[3][i]);p[2][i] = p[1][i];p[1][i] = p[0][i];p[0][i] = s0;if (p[2][i] == p[1][i] && p[2][i] != s0){score += equal_int(p[2][i]);p[2][i] = equal_str(p[2][i]);p[1][i] = p[0][i];}}else if (p[2][i] == p[1][i] && p[2][i] != s0){score += equal_int(p[2][i]);p[2][i] = equal_str(p[2][i]);p[1][i] = p[0][i];p[0][i] = s0;}else if (p[1][i] == p[0][i] && p[1][i] != s0){score += equal_int(p[1][i]);p[1][i] = equal_str(p[1][i]);p[0][i] = s0;}}break;default:break;}
}void input()
{char c1 = _getch();char c2 = _getch();switch (c2){case 72: // upchange(1);break;case 80: // downchange(2);break;case 75: // leftchange(3);break;case 77: // rightchange(4);break;default:break;}
}void random_n(vector<vector<string>> q, unsigned n)
{vector<unsigned> xx, yy;char c = 'A';for (int i = 0; i != 4; i++){for (int j = 0; j != 4; j++)if (q[i][j] == s0){q[i][j] = "";(q[i][j]).push_back(c);xx.push_back(i);yy.push_back(j);++c; // move to next character}}if (c == 'A') stop = 1; // indicate the end of the gameelse{srand((unsigned)time(NULL));int ran = rand() % (c - 'A'); // generate a random numberstring random_number = (n % 7 == 6) ? s4 : s2;p[xx[ran]][yy[ran]] = random_number;}
}void print()
{std::cout << "+----+----+----+----+" << endl;for (int i = 0; i != 4; i++){for (int j = 0; j != 4; j++)std::cout << "|" << p[i][j];std::cout << "|\n+----+----+----+----+" << endl;}
}int main()
{HANDLE hOut = GetStdHandle(STD_OUTPUT_HANDLE);CONSOLE_CURSOR_INFO cci;GetConsoleCursorInfo(hOut, &cci);cci.bVisible = FALSE;SetConsoleCursorInfo(hOut, &cci);// The five lines above are used to hide the Console Cursor.    std::cout << "This is a simple 2048 game.\nProgrammer：Teddy van Jerry" << endl;std::cout << "\nYou can use ↑,↓,←,→ to control." << endl;std::cout << "\nNow you have 3 seconds to get ready. After that, we will begin.\n" << endl;for (int i = 3; i != 0; i--){std::cout << i;Sleep(1000); // wait for a second;std::cout << " ";}std::cout << "Go!\n" << endl;long time_start = clock(); // the starting pointunsigned cnt = 0;print();while (stop == 0) // when it's unfinshed{input();random_n(p, cnt);print();std::cout << "Your current score is " << score << "." << endl;std::cout << "\n" << endl;++cnt;}long total_time = clock() - time_start;int min = total_time / 60000;int second = (total_time % 60000) / 1000;string zero = (second < 10) ? "0" : "";std::cout << "The game is over." << endl;std::cout << "Your final score is " << score << "." << endl;std::cout << "The total time is " << min << "'" << zero << second << "\"." << endl;std::cout << "\nALL RIGHTS RESERVED (c) 2020 Teddy van Jerry" << endl;char anything;std::cin >> anything;return 0;
}//Copyright :2020 Teddy van Jerry

输出示例

分析

有没有觉得这样的表格不那么好看？那么浏览我的博客【C++ 程序】九九乘法表来自己修改一下吧。
这个就是分类讨论细致些，比如巨长的change(int n)的讨论。一个 subscript 写错就有可能造成 bug。每一个方向分别两步走：1. 先将空位取消，移动到一端。 2.再判断相邻连个是否相等，在进行输出（此处我又写了2个function）和加分。
胜负判断为随机的一个数无法加上去（即没有空位，全部填满）。
其他与之前的几个类似，分析见 贪吃蛇游戏 和 移动迷宫游戏。
修改说明（2020.09.08）
程序经试验（同学玩的时候发现的）发现存在bug，如下图：

于是回到程序中寻找，发现169，170，307，308行有错误。
下面改好又试验了以下：
_{（就是输出示例的图）}
为了保险起见，决定做一下计算。

先不考虑自动生成4的情况，此时每个数字对应得分是可以算出来的，然后这样算出的数字减去程序中算出的总分，可求出大致的操作数为245（因为每7次生成一次4），这是差不多的。因而程序基本上不存在bug了。

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【C++ 程序】 2048游戏

程序

输出示例

分析

See also

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