The Best of Windows 95.com 1996 September/WIN95_09963.iso/strategy/hangman.zip/Hangman.cpp

C/C++ Source or Header | 1996-01-15 | 6KB | 234 lines

//  CHangman.cpp
//
//  Jasen N. Tenney
//    21 December 1995
//
//  Functions for the CHangman class.
//
#include "stdafx.h"
#include "Hangman.h"

CHangman::CHangman()
{
    // Do initialization here
    m_CurrentDictionary.RemoveAll();
    m_CurrentDictionary.SetSize( 7000, 2000);    // Set initial size and grow by size
    srand( (unsigned)time( NULL ) );            // Seed random number generator
    m_NumValidGuesses = 10;                        // Set number of valid guesses
    Reset();
}

CHangman::~CHangman()
{
}

void CHangman::LoadNewWord()
{
    UINT Index;

    Index                = rand() % m_WordCount;    // Get index of new word
    m_CurrentWord        = m_CurrentDictionary.GetAt(Index);    // Load new word
    m_CurrentGuess        = InitCurrentGuess();    // Initialize current guess "_ _..."
    m_GuessesRemaining    = m_NumValidGuesses;    // Reset guesses remaining
    m_TotalGuesses        = 0;                    // Total guesses so far
}

BOOL CHangman::CheckLetter(char Letter)
{
    BOOL LetterAdded   = FALSE;
    int Size  =0;
    int Index =0;

    Size = m_CurrentWord.GetLength();    // Get length of current word
    for(Index=0; Index<Size; Index++)    // Step through word to check
    {
        if( m_CurrentWord[Index] == Letter )    // If we hit a letter then
        {
            m_CurrentGuess.SetAt( (Index*2), Letter);    // Set current guess to
            LetterAdded = TRUE;                            // letter and change bool
        }
    }
    if( LetterAdded == FALSE )
        DecrementGuessRemain();        // If no letter added decrement guesses remaining

    IncrementTotalGuesses();        // Increment total guesses so far
    return( LetterAdded );            // Return TRUE/FALSE if letter added or not
}

UINT CHangman::GetGamesPlayed()
{
    return( m_GamesPlayed );        // Return number of games played so far
}

UINT CHangman::GetGamesWon()
{
    return( m_GamesWon );            // Return number of games won so far
}

UINT CHangman::GetPercentage()
{
    if( m_GamesPlayed != 0 )        // Only do divide if games played not zero
        m_Percentage = (UINT)(((float)m_GamesWon / (float)m_GamesPlayed) * 100);
    return( m_Percentage );            // Return the percentage
}

CString CHangman::InitCurrentGuess()
{
    int Index = 0;
    CString Temp;                    // Use a temporary string

    for(Index=0; Index < m_CurrentWord.GetLength(); Index++)
        if( Index == ( m_CurrentWord.GetLength() - 1 ) )
            Temp += "_";    // If last the just put "_" and not "_ "
        else
            Temp += "_ ";    // Make string look like "_ _ _ _"

    return( Temp );            // Return it to calling function
}

CString CHangman::GetCurrentGuess()
{
    return( m_CurrentGuess );    // Return the current # of guesses so far
}

void CHangman::Reset()
{
    m_GamesPlayed        = 0;    // Reset all variables to reflect new game
    m_GamesWon            = 0;
    m_Percentage        = 0;
}

UINT CHangman::GetGuessRemain()
{
    return( m_GuessesRemaining );    // Return the # of guesses remaining
}

BOOL CHangman::CheckWordCompleted()
{
    BOOL WordCompleted = TRUE;
    int Size  =0;
    int Index =0;

    Size = m_CurrentWord.GetLength();    // Get length of current word
    for(Index=0; Index<Size; Index++)
    {
        if( m_CurrentWord[Index] != m_CurrentGuess.GetAt( Index*2 ) )
            WordCompleted = FALSE;    // If all letter do not match then not completed
    }
    return( WordCompleted );    // Return TRUE/FALSE if guess is completed or not
}

void CHangman::IncrementGamesWon()
{
    m_GamesWon++;                // Increment # of games won
}

void CHangman::IncrementGamesPlayed()
{
    m_GamesPlayed++;            // Increment # of games played
}

CString CHangman::GetHintLetter()
{
    CString Letter;
    int Size  =0;
    int Index =0;

    Size = m_CurrentWord.GetLength();
    for(Index=0; Index<Size; Index++)
         if( m_CurrentGuess.GetAt( Index*2 ) == '_' )
        {
            Letter = m_CurrentWord.GetAt( Index );    // On first '_' return the
            break;                                    // letter that should be there
        }
    return( Letter );
}

void CHangman::DecrementGuessRemain()
{
    if( m_GuessesRemaining > 0 )    // As long as guesses remaining is greater than
        m_GuessesRemaining--;        // zero you can subtract from it
}

CString CHangman::GetCurrentWord()
{
    return( m_CurrentWord );        // Return current word
}

void CHangman::IncrementTotalGuesses()
{
    m_TotalGuesses++;                // Increment # of total guesses so far
}

UINT CHangman::GetTotalGuesses()
{
    return( m_TotalGuesses );        // Return total guesses so far
}

BOOL CHangman::LoadDictionary()
{
    CStdioFile f;
    CFileException exception;
    BOOL openStatus = FALSE;
    BOOL fileStatus = TRUE;
    char* pFileName = "hangman.dic";
    UINT Index = 0;

    // open file for reading
    openStatus = f.Open(pFileName,
            CFile::modeRead, &exception);
    if (!openStatus)
    {
        CString strMsg;
        char tmpStr[30];

        _itoa( exception.m_cause, tmpStr, 10 );
        strMsg =  "Error opening data file. Code: ";
        strMsg += tmpStr;
        strMsg += ".";
        MessageBox(NULL, strMsg, NULL, MB_ICONINFORMATION | MB_OK);
        return( FALSE );
    }
    else
    {
        CString tmpStr;
        do
        {
            try
            {
                fileStatus = f.ReadString(tmpStr);
                if(fileStatus == TRUE)
                {
                    m_CurrentDictionary.SetAt(Index,tmpStr);
                    Index++;
                }

            }
            catch (CFileException exception)
            {
                CString strMsg;
                char tmpStr[30];

                _itoa( exception.m_cause, tmpStr, 10 );
                strMsg =  "Error reading data file. Code: ";
                strMsg += tmpStr;
                strMsg += ".";
                MessageBox(NULL, strMsg, NULL, MB_ICONINFORMATION | MB_OK);
                return( FALSE );
            }
        }
        while (fileStatus == TRUE);
        f.Close();
    }
    m_WordCount = Index;
    return( TRUE );
}

void CHangman::LoadErrorDictionary()
{
    UINT Index;
    for(Index= 0; Index<100; Index++)    // Upon error load dictionary to this
       m_CurrentDictionary.SetAt(Index,"JASENNTENNEY");
     m_WordCount=Index;
}