C\C++ 1A2B小游戏源码

  1 // name:1A2B.cpp
  2 // author:Frank
  3 // descraption: 1A2B Game, in the beginning, the program will generate a random four-digits number
  4 //                 in which the digits is not equal to each other, you need to guess it, and as you
  5 //                enter your answer, there would be a tips likes: xAyB. x means the count of right
  6 //                numbers those are in the right sites, y means the count of right numbers those
  7 //                are not in the right sites. 4A0B means you have got the right number.
  8 #include <iostream>
  9 #include <stdlib.h>
 10 #include <time.h>
 11 #include <string.h>
 12 #include <stdbool.h>
 13 
 14 void InitializeGame(void);
 15 void GetInput(char * input);
 16 bool CheckAnswer(char * input);
 17 bool GiveTips(char * input);
 18 void GetRandom(char * random);
 19 using namespace std;
 20 
 21 char answer[5] = "";
 22 char input[10] = "";
 23 int times = 0;
 24 
 25 int main(int argc, char** argv) {
 26     char c;
 27     while (true){
 28         cout << "Enter 'S' to start the game, 'Q' to quit." << endl;
 29         c = toupper(getchar());
 30         while(getchar() != '\n');
 31         if (c == 'Q')
 32             break;
 33         else if(c == 'S'){
 34             cout << "Game Start! Enter your answer:" << endl;
 35             times = 0;
 36             InitializeGame();//初始化游戏
 37 //            cout << "The answer is: " << answer << endl; 
 38             GetInput(input); //输入猜测值 
 39             //检查猜测是否正确 不正确则给出提示 
 40             while(GiveTips(input) == false){
 41                 times++;
 42                 GetInput(input);                
 43             }
 44             times++;
 45             cout << "Congratulations! You have got it after " << times << " times." << endl;
 46         }else
 47             cout << "Only 'S' and 'Q' are received." << endl;     
 48     }
 49 
 50     return 0;
 51 }
 52 
 53 /****************************************************************************** 
 54 *函数名称：void InitializeGame(void)
 55 *函数功能：初始化游戏,生成随机数 
 56 *入口参数：无
 57 *返 回 值：无
 58 *******************************************************************************/  
 59 void InitializeGame(void){
 60     static bool init_rand = false;
 61     if (init_rand == false){
 62         srand ((unsigned) time(NULL)); //如果未初始化则初始化随机数种子 
 63         init_rand = true;
 64     }
 65     GetRandom(answer);//生成随机数 
 66 //    cout << answer << endl;
 67 }
 68 
 69 /****************************************************************************** 
 70 *函数名称：void GetInput(char * input)
 71 *函数功能：读取一个字符串 
 72 *入口参数：返回读取的字符串 
 73 *返 回 值：无 
 74 *******************************************************************************/ 
 75 void GetInput(char * input){
 76     gets(input);
 77     while(true){
 78         if(strlen(input) != 4){
 79             cout << "Please input a 4-digits number!" << endl;
 80             gets(input);    
 81             continue;    
 82         }
 83         if(CheckAnswer(input) == false){
 84             cout << "There couldn't be two same character in your answer!" << endl;
 85             gets(input);//不合法则重新输入 
 86             continue;
 87         }
 88         break;
 89     }
 90 }
 91 
 92 /****************************************************************************** 
 93 *函数名称：bool checkanswer(char * input)
 94 *函数功能：判断答案是否合法，即是否存在重复数字 
 95 *入口参数：input为待判断的答案 
 96 *返 回 值：正确则返回真，否则返回假 
 97 *******************************************************************************/ 
 98 bool CheckAnswer(char * input){
 99     char temp[5];
100     strcpy (temp, input);
101     for(int i = 0; i < 4; i++){
102         for(int j = i + 1; j < 4; j++)
103             if(temp[i] == input[j])
104                 return false;
105     } 
106     return true; 
107 }
108 
109 /****************************************************************************** 
110 *函数名称：void GiveTips(char * input)
111 *函数功能：根据输入的答案来给出提示 
112 *入口参数：待判断的答案 
113 *返 回 值：无 
114 *******************************************************************************/ 
115 bool GiveTips(char * input){
116 //    cout << "I'm checking." << endl;
117     int a = 0, b = 0;
118     for(int i = 0; i < 4; i++){
119         for(int j = 0; j < 4; j++){
120 //            cout << "i:" << i << "j:" << j << endl; 
121             if (input[i] == answer[j]){
122                 if(i == j)
123                     a++;
124                 else
125                     b++;
126                 continue;
127             }
128         }
129     }
130     cout << "Tips:" << a << "A" << b << "B\n" << endl; 
131     if (a == 4)
132         return true;
133     cout << "Enter another answer:";
134     return false;
135 }
136 
137 /****************************************************************************** 
138 *函数名称：void GetRandom(char * random)
139 *函数功能：产生一个各位数不相等的四位随机数 
140 *入口参数：random为返回的随机数 
141 *返 回 值：无 
142 *备 注：先生成一个0-9的整数数组，再随机从中取四个数，每取一个将该位置为-1 
143 *******************************************************************************/  
144 void GetRandom(char * random){
145     int i, j[10], k;
146     for (i = 0; i < 10; i++){
147         j[i] = i;
148     }
149     for(i = 0; i < 4; i++){
150         //生成第i个随机数 
151         k = (int)rand() % 10;//k为下标 
152         while (j[k] == -1){
153             k = (k + 1) % 10; 
154         }
155         random[i] = '0' + j[k];
156         j[k] = -1;
157     }
158 }