Click here to Skip to main content
Click here to Skip to main content
Articles » Multimedia » DirectX » Games » Downloads
 
Add your own
alternative version
Go to top

Falling Blocks

, 17 Apr 2008
A game written using Visual C++ and DirectX.
fallingblocks.zip
FallingBlocks.exe
fallingblocksvc7.zip
FallingBlocks
Block are Falling.doc
DirectX.ico
Drowning.wav
Graphics.bmp
LineComplete.wav
Move.wav
Place.wav
Web Falling Blocks.doc
fallingblocksvs2008.zip
Block are Falling.doc
DirectX.ico
Drowning.wav
FallingBlocks.suo
Graphics.bmp
LineComplete.wav
Move.wav
Place.wav
Web Falling Blocks.doc
fallingblocks_src.zip
Block are Falling.doc
DirectX.ico
Drowning.wav
FallingBlocks.dsp
FallingBlocks.dsw
Graphics.bmp
LineComplete.wav
Move.wav
Place.wav
Web Falling Blocks.doc
//-----------------------------------------------------------------------------
// File: DXUtil.cpp
//
// Desc: Shortcut macros and functions for using DX objects
//
//
// Copyright (c) 1997-2000 Microsoft Corporation. All rights reserved
//-----------------------------------------------------------------------------
#define STRICT
#include <windows.h>
#include <mmsystem.h>
#include <tchar.h>
#include <stdio.h> 
#include <stdarg.h>
#include "DXUtil.h"




//-----------------------------------------------------------------------------
// Name: DXUtil_GetDXSDKMediaPath()
// Desc: Returns the DirectX SDK media path
//-----------------------------------------------------------------------------
const TCHAR* DXUtil_GetDXSDKMediaPath()
{
    static TCHAR strNull[2] = _T("");
    static TCHAR strPath[MAX_PATH];
    DWORD dwType;
    DWORD dwSize = MAX_PATH;
    HKEY  hKey;

    // Open the appropriate registry key
    LONG lResult = RegOpenKeyEx( HKEY_LOCAL_MACHINE,
                                _T("Software\\Microsoft\\DirectX"),
                                0, KEY_READ, &hKey );
    if( ERROR_SUCCESS != lResult )
        return strNull;

    lResult = RegQueryValueEx( hKey, _T("DX8SDK Samples Path"), NULL,
                              &dwType, (BYTE*)strPath, &dwSize );
    RegCloseKey( hKey );

    if( ERROR_SUCCESS != lResult )
        return strNull;

    strcat_s( strPath, MAX_PATH, _T("\\Media\\") );

    return strPath;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_FindMediaFile()
// Desc: Returns a valid path to a DXSDK media file
//-----------------------------------------------------------------------------
HRESULT DXUtil_FindMediaFile( TCHAR* strPath, TCHAR* strFilename )
{
    HANDLE file;

    if( NULL==strFilename || NULL==strPath )
        return E_INVALIDARG;

    // Check if the file exists in the current directory
    strcpy_s( strPath, MAX_PATH, strFilename );

    file = CreateFile( strPath, GENERIC_READ, FILE_SHARE_READ, NULL, 
                       OPEN_EXISTING, 0, NULL );
    if( INVALID_HANDLE_VALUE != file )
    {
        CloseHandle( file );
        return S_OK;
    }
    
    // Check if the file exists in the current directory
    sprintf_s( strPath, MAX_PATH,  _T("%s%s"), DXUtil_GetDXSDKMediaPath(), strFilename );

    file = CreateFile( strPath, GENERIC_READ, FILE_SHARE_READ, NULL, 
                       OPEN_EXISTING, 0, NULL );
    if( INVALID_HANDLE_VALUE != file )
    {
        CloseHandle( file );
        return S_OK;
    }

    // On failure, just return the file as the path
    strcpy_s( strPath, MAX_PATH, strFilename );
    return E_FAIL;
}






//-----------------------------------------------------------------------------
// Name: DXUtil_WriteStringRegKey()
// Desc: Helper function to write a registry key string
//-----------------------------------------------------------------------------
HRESULT DXUtil_WriteStringRegKey( HKEY hKey, TCHAR* strRegName,
                                  TCHAR* strValue )
{
    if( ERROR_SUCCESS != RegSetValueEx( hKey, strRegName, 0, REG_SZ, 
                                        (BYTE*)strValue, 
                                        (_tcslen(strValue)+1)*sizeof(TCHAR) ) )
        return E_FAIL;

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_ReadIntRegKey()
// Desc: Helper function to read a registry key int
//-----------------------------------------------------------------------------
HRESULT DXUtil_ReadIntRegKey( HKEY hKey, TCHAR* strRegName, DWORD* pdwValue, 
                              DWORD dwDefault )
{
    DWORD dwType;
    DWORD dwLength = sizeof(DWORD);

    if( ERROR_SUCCESS != RegQueryValueEx( hKey, strRegName, 0, &dwType, 
                                          (BYTE*)pdwValue, &dwLength ) )
    {
        *pdwValue = dwDefault;
    }

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_WriteIntRegKey()
// Desc: Helper function to write a registry key int
//-----------------------------------------------------------------------------
HRESULT DXUtil_WriteIntRegKey( HKEY hKey, TCHAR* strRegName, DWORD dwValue )
{
    if( ERROR_SUCCESS != RegSetValueEx( hKey, strRegName, 0, REG_DWORD, 
                                        (BYTE*)&dwValue, sizeof(DWORD) ) )
        return E_FAIL;

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_ReadBoolRegKey()
// Desc: Helper function to read a registry key BOOL
//-----------------------------------------------------------------------------
HRESULT DXUtil_ReadBoolRegKey( HKEY hKey, TCHAR* strRegName, BOOL* pbValue, 
                              BOOL bDefault )
{
    DWORD dwType;
    DWORD dwLength = sizeof(BOOL);

    if( ERROR_SUCCESS != RegQueryValueEx( hKey, strRegName, 0, &dwType, 
                                          (BYTE*)pbValue, &dwLength ) )
    {
        *pbValue = bDefault;
    }

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_WriteBoolRegKey()
// Desc: Helper function to write a registry key BOOL
//-----------------------------------------------------------------------------
HRESULT DXUtil_WriteBoolRegKey( HKEY hKey, TCHAR* strRegName, BOOL bValue )
{
    if( ERROR_SUCCESS != RegSetValueEx( hKey, strRegName, 0, REG_DWORD, 
                                        (BYTE*)&bValue, sizeof(BOOL) ) )
        return E_FAIL;

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_ReadGuidRegKey()
// Desc: Helper function to read a registry key guid
//-----------------------------------------------------------------------------
HRESULT DXUtil_ReadGuidRegKey( HKEY hKey, TCHAR* strRegName, GUID* pGuidValue, 
                               GUID& guidDefault )
{
    DWORD dwType;
    DWORD dwLength = sizeof(GUID);

    if( ERROR_SUCCESS != RegQueryValueEx( hKey, strRegName, 0, &dwType, 
                                          (LPBYTE) pGuidValue, &dwLength ) )
    {
        *pGuidValue = guidDefault;
    }

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_WriteGuidRegKey()
// Desc: Helper function to write a registry key guid
//-----------------------------------------------------------------------------
HRESULT DXUtil_WriteGuidRegKey( HKEY hKey, TCHAR* strRegName, GUID guidValue )
{
    if( ERROR_SUCCESS != RegSetValueEx( hKey, strRegName, 0, REG_BINARY, 
                                        (BYTE*)&guidValue, sizeof(GUID) ) )
        return E_FAIL;

    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_Timer()
// Desc: Performs timer opertations. Use the following commands:
//          TIMER_RESET           - to reset the timer
//          TIMER_START           - to start the timer
//          TIMER_STOP            - to stop (or pause) the timer
//          TIMER_ADVANCE         - to advance the timer by 0.1 seconds
//          TIMER_GETABSOLUTETIME - to get the absolute system time
//          TIMER_GETAPPTIME      - to get the current time
//          TIMER_GETELAPSEDTIME  - to get the time that elapsed between 
//                                  TIMER_GETELAPSEDTIME calls
//-----------------------------------------------------------------------------
FLOAT __stdcall DXUtil_Timer( TIMER_COMMAND command )
{
    static BOOL     m_bTimerInitialized = FALSE;
    static BOOL     m_bUsingQPF         = FALSE;
    static LONGLONG m_llQPFTicksPerSec  = 0;

    // Initialize the timer
    if( FALSE == m_bTimerInitialized )
    {
        m_bTimerInitialized = TRUE;

        // Use QueryPerformanceFrequency() to get frequency of timer.  If QPF is
        // not supported, we will timeGetTime() which returns milliseconds.
        LARGE_INTEGER qwTicksPerSec;
        m_bUsingQPF = QueryPerformanceFrequency( &qwTicksPerSec );
        if( m_bUsingQPF )
            m_llQPFTicksPerSec = qwTicksPerSec.QuadPart;
    }

    if( m_bUsingQPF )
    {
        static LONGLONG m_llStopTime        = 0;
        static LONGLONG m_llLastElapsedTime = 0;
        static LONGLONG m_llBaseTime        = 0;
        double fTime;
        double fElapsedTime;
        LARGE_INTEGER qwTime;
        
        // Get either the current time or the stop time, depending
        // on whether we're stopped and what command was sent
        if( m_llStopTime != 0 && command != TIMER_START && command != TIMER_GETABSOLUTETIME)
            qwTime.QuadPart = m_llStopTime;
        else
            QueryPerformanceCounter( &qwTime );

        // Return the elapsed time
        if( command == TIMER_GETELAPSEDTIME )
        {
            fElapsedTime = (double) ( qwTime.QuadPart - m_llLastElapsedTime ) / (double) m_llQPFTicksPerSec;
            m_llLastElapsedTime = qwTime.QuadPart;
            return (FLOAT) fElapsedTime;
        }
    
        // Return the current time
        if( command == TIMER_GETAPPTIME )
        {
            double fAppTime = (double) ( qwTime.QuadPart - m_llBaseTime ) / (double) m_llQPFTicksPerSec;
            return (FLOAT) fAppTime;
        }
    
        // Reset the timer
        if( command == TIMER_RESET )
        {
            m_llBaseTime        = qwTime.QuadPart;
            m_llLastElapsedTime = qwTime.QuadPart;
            return 0.0f;
        }
    
        // Start the timer
        if( command == TIMER_START )
        {
            m_llBaseTime += qwTime.QuadPart - m_llStopTime;
            m_llStopTime = 0;
            m_llLastElapsedTime = qwTime.QuadPart;
            return 0.0f;
        }
    
        // Stop the timer
        if( command == TIMER_STOP )
        {
            m_llStopTime = qwTime.QuadPart;
            m_llLastElapsedTime = qwTime.QuadPart;
            return 0.0f;
        }
    
        // Advance the timer by 1/10th second
        if( command == TIMER_ADVANCE )
        {
            m_llStopTime += m_llQPFTicksPerSec/10;
            return 0.0f;
        }

        if( command == TIMER_GETABSOLUTETIME )
        {
            fTime = qwTime.QuadPart / (double) m_llQPFTicksPerSec;
            return (FLOAT) fTime;
        }

        return -1.0f; // Invalid command specified
    }
    else
    {
        // Get the time using timeGetTime()
        static double m_fLastElapsedTime  = 0.0;
        static double m_fBaseTime         = 0.0;
        static double m_fStopTime         = 0.0;
        double fTime;
        double fElapsedTime;
        
        // Get either the current time or the stop time, depending
        // on whether we're stopped and what command was sent
        if( m_fStopTime != 0.0 && command != TIMER_START && command != TIMER_GETABSOLUTETIME)
            fTime = m_fStopTime;
        else
            fTime = timeGetTime() * 0.001;
    
        // Return the elapsed time
        if( command == TIMER_GETELAPSEDTIME )
        {   
            fElapsedTime = (double) (fTime - m_fLastElapsedTime);
            m_fLastElapsedTime = fTime;
            return (FLOAT) fElapsedTime;
        }
    
        // Return the current time
        if( command == TIMER_GETAPPTIME )
        {
            return (FLOAT) (fTime - m_fBaseTime);
        }
    
        // Reset the timer
        if( command == TIMER_RESET )
        {
            m_fBaseTime         = fTime;
            m_fLastElapsedTime  = fTime;
            return 0.0f;
        }
    
        // Start the timer
        if( command == TIMER_START )
        {
            m_fBaseTime += fTime - m_fStopTime;
            m_fStopTime = 0.0f;
            m_fLastElapsedTime  = fTime;
            return 0.0f;
        }
    
        // Stop the timer
        if( command == TIMER_STOP )
        {
            m_fStopTime = fTime;
            return 0.0f;
        }
    
        // Advance the timer by 1/10th second
        if( command == TIMER_ADVANCE )
        {
            m_fStopTime += 0.1f;
            return 0.0f;
        }

        if( command == TIMER_GETABSOLUTETIME )
        {
            return (FLOAT) fTime;
        }

        return -1.0f; // Invalid command specified
    }
}




//-----------------------------------------------------------------------------
// Name: DXUtil_ConvertAnsiStringToWide()
// Desc: This is a UNICODE conversion utility to convert a CHAR string into a
//       WCHAR string. cchDestChar defaults -1 which means it 
//       assumes strDest is large enough to store strSource
//-----------------------------------------------------------------------------
VOID DXUtil_ConvertAnsiStringToWide( WCHAR* wstrDestination, const CHAR* strSource, 
                                     int cchDestChar )
{
    if( wstrDestination==NULL || strSource==NULL )
        return;

    if( cchDestChar == -1 )
        cchDestChar = strlen(strSource)+1;

    MultiByteToWideChar( CP_ACP, 0, strSource, -1, 
                         wstrDestination, cchDestChar-1 );

    wstrDestination[cchDestChar-1] = 0;
}




//-----------------------------------------------------------------------------
// Name: DXUtil_ConvertWideStringToAnsi()
// Desc: This is a UNICODE conversion utility to convert a WCHAR string into a
//       CHAR string. cchDestChar defaults -1 which means it 
//       assumes strDest is large enough to store strSource
//-----------------------------------------------------------------------------
VOID DXUtil_ConvertWideStringToAnsi( CHAR* strDestination, const WCHAR* wstrSource, 
                                     int cchDestChar )
{
    if( strDestination==NULL || wstrSource==NULL )
        return;

    if( cchDestChar == -1 )
        cchDestChar = wcslen(wstrSource)+1;

    WideCharToMultiByte( CP_ACP, 0, wstrSource, -1, strDestination, 
                         cchDestChar-1, NULL, NULL );

    strDestination[cchDestChar-1] = 0;
}



//-----------------------------------------------------------------------------
// Name: DXUtil_ConvertGenericStringToWide()
// Desc: This is a UNICODE conversion utility to convert a TCHAR string into a
//       WCHAR string. cchDestChar defaults -1 which means it 
//       assumes strDest is large enough to store strSource
//-----------------------------------------------------------------------------
VOID DXUtil_ConvertGenericStringToWide( WCHAR* wstrDestination, const TCHAR* tstrSource, 
                                        int cchDestChar )
{
    if( wstrDestination==NULL || tstrSource==NULL )
        return;

#ifdef _UNICODE
    if( cchDestChar == -1 )
	    wcscpy( wstrDestination, tstrSource );
    else
	    wcsncpy( wstrDestination, tstrSource, cchDestChar );
#else
    DXUtil_ConvertAnsiStringToWide( wstrDestination, tstrSource, cchDestChar );
#endif
}


//-----------------------------------------------------------------------------
// Name: DXUtil_ConvertAnsiStringToGeneric()
// Desc: This is a UNICODE conversion utility to convert a WCHAR string into a
//       TCHAR string. cchDestChar defaults -1 which means it 
//       assumes strDest is large enough to store strSource
//-----------------------------------------------------------------------------
VOID DXUtil_ConvertWideStringToGeneric( TCHAR* tstrDestination, const WCHAR* wstrSource, 
                                        int cchDestChar )
{
    if( tstrDestination==NULL || wstrSource==NULL )
        return;

#ifdef _UNICODE
    if( cchDestChar == -1 )
	    wcscpy( tstrDestination, wstrSource );
    else
	    wcsncpy( tstrDestination, wstrSource, cchDestChar );
#else
    DXUtil_ConvertWideStringToAnsi( tstrDestination, wstrSource, cchDestChar );
#endif
}




//-----------------------------------------------------------------------------
// Name: _DbgOut()
// Desc: Outputs a message to the debug stream
//-----------------------------------------------------------------------------
HRESULT _DbgOut( TCHAR* strFile, DWORD dwLine, HRESULT hr, TCHAR* strMsg )
{
    TCHAR buffer[256];
    wsprintf( buffer, _T("%s(%ld): "), strFile, dwLine );
    OutputDebugString( buffer );
    OutputDebugString( strMsg );

    if( hr )
    {
        wsprintf( buffer, _T("(hr=%08lx)\n"), hr );
        OutputDebugString( buffer );
    }

    OutputDebugString( _T("\n") );

    return hr;
}

By viewing downloads associated with this article you agree to the Terms of Service and the article's licence.

If a file you wish to view isn't highlighted, and is a text file (not binary), please let us know and we'll add colourisation support for it.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Share

About the Author

Xavier John
Software Developer
United States United States
No Biography provided

| Advertise | Privacy | Mobile
Web01 | 2.8.140916.1 | Last Updated 17 Apr 2008
Article Copyright 2001 by Xavier John
Everything else Copyright © CodeProject, 1999-2014
Terms of Service
Layout: fixed | fluid