正如标题所述,我是第一次使用 Functions,我很难将它们应用到刽子手游戏中。根据我有限的知识,我假设我的变量范围超出了函数调用的范围。鉴于我完全是在书本上工作,我觉得我碰壁了。我在想可能会使用全局变量,但话又说回来,我正在写的那一章也只给了我对它们的有限理解。我也遇到了 srand(time(0)); 的问题。出于某种原因。任何帮助将不胜感激,并提前致谢。
// HangMan Game
// With Functions
#include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <ctime>
#include <cctype>
using namespace std;
char playerGuess();
char guessInWord();
int main()
{
//setup
const int MAX_WRONG = 8;//max wrong will be set at 8
vector<string> words; //collection of possible words to guess
words.push_back ("DAFTPUNK");
words.push_back ("ELSALVADOR");
words.push_back ("HIPHOP");
srand(time(0));
random_shuffle(words.begin(), words.end());
const string THE_WORD = words[0]; //word to guess
int wrong = 0; //number of incorrect guesses
string soFar(THE_WORD.size(), '-'); //word guessed so far
string used = ""; //letters already guessed
cout << "Welcome to Hangmam. Good luck!\n";
//main loop
while ((wrong < MAX_WRONG) && (soFar != THE_WORD))
{
cout << "\nYou have " << (MAX_WRONG - wrong) << " incorrect guesses left.\n";
cout << "\nYou've used the following letters:\n" << used << endl;
cout << "\nSo far, the word is:\n" << soFar << endl;
char guess = playerGuess(); //call to function 1
used += guess;
guessInWord(); //call to function 2
}
//shut down
if(wrong == MAX_WRONG)
cout << "\nYou've been hanged!";
else
cout << "\nYou guessed it!";
cout << "\nThe Word was " << THE_WORD << endl;
return 0;
}
//function Definitions 1
char playerGuess()
{
char letter;
cout << "\n\nEnter your guess: ";
cin >> letter;
letter = toupper(letter); //makes uppercase of letter
while (used.find(letter) != string::npos)
{
cout <<"\nYou've already guessed " << letter << endl;
cout <<"Enter your guess: ";
cin >> letter;
letter = toupper(letter);
}
return letter;
}
//function Definitions 2
void guessInWord()
{
if (THE_WORD.find(guess) != string::npos)
{
cout << "That's right! " << guess << " is in the word.\n";
//update soFar to Include newly guessed letter
for (int i = 0; i < THE_WORD.length(); ++i)
if (THE_WORD[i] == guess)
soFar[i] = guess;
}
else
{
cout << "Sorry, " << guess << " isn't in the word.\n";
++wrong;
}
}