main.cpp

这是一个屠宰场游戏,此游戏很休闲的请大家下载来看看.

    //读入200个字符,如果碰到换行符结束,换行符被提取,但不放入szName中
    LevelData.getline(szName,200);  //读入游戏名字

	// Read number of horizontal lines
	LevelData >> g_nNoOfLevels;   //提取游戏共有多少关卡
	g_pLevel = new SLEVEL[g_nNoOfLevels];  //分配内存,每一关有一 SLEVEL 结构体,记录地图文件名和敌人的数目
	if (g_pLevel == NULL)
		return -1;
	for (int nI = 0; nI < g_nNoOfLevels; nI++) {//g_nNoOfLevels关卡数目
		LevelData >> g_pLevel[nI].szLevelFile;  //提取迷宫地图文件名
		LevelData >> g_pLevel[nI].nNoOfEnemys;  //提取敌人的数目
	}
	
	//创建和显示应用程序主窗口,从资源载入加速键表
    if( FAILED( WinInit( hInst, nCmdShow, &hWnd, &hAccel ) ) )
        return FALSE;
	
	//
    if( FAILED( InitDirectDraw( hWnd ) ) ) //创建 DirectDraw8对象，创建所有表面，创建DirectSound 和DirectInput 
    {
        MessageBox( hWnd, TEXT("DirectDraw init failed. ")
			TEXT("The program will now exit. "), TEXT("Maze Test program"), 
			MB_ICONERROR | MB_OK );
        return FALSE;
    }
	InitSprites();//初始化精灵
	
    g_dwLastTick = timeGetTime();
	
    while( TRUE )
    {
        // Look for messages, if none are found then 
        // update the state and display it
        if( PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) )
        {
            if( 0 == GetMessage(&msg, NULL, 0, 0 ) )//如果消息为WM_QUIT 则退出
            {
                // WM_QUIT was posted, so exit
				FreeDirectDraw();
				CoUninitialize(); //Closes the COM library on the current apartment, unloads all DLLs loaded 
				delete[] g_pLevel;
                return (int)msg.wParam;
            }
			
            
			// Translate and dispatch the message
			//The TranslateAccelerator function processes accelerator keys for menu commands. 
			//The function translates a WM_KEYDOWN or WM_SYSKEYDOWN message to a WM_COMMAND or WM_SYSCOMMAND message 
			//(if there is an entry for the key in the specified accelerator table) 
			//and then sends the WM_COMMAND or WM_SYSCOMMAND message directly to the appropriate window procedure.
			//TranslateAccelerator does not return until the window procedure has processed the message. 
            if( 0 == TranslateAccelerator( hWnd, hAccel, &msg ) )
            {
                TranslateMessage( &msg ); 
                DispatchMessage( &msg );
            }
        }
        else
        {
            if( g_bActive )
            {
                // Move the sprites, blt them to the back buffer, then 
                // flip or blt the back buffer to the primary buffer
                if( FAILED( ProcessNextFrame( hWnd ) ) )//处理下一帧
                {
                    SAFE_DELETE( g_pDisplay );
					
                    MessageBox( hWnd, TEXT("Displaying the next frame failed. ")
						TEXT("The program will now exit. "), TEXT("Adv In Abt"), 
						MB_ICONERROR | MB_OK );
                    return FALSE;
                }
            }
            else
            {
                // Go to sleep if we have nothing else to do
                WaitMessage();
				
                // Ignore time spent inactive 
                g_dwLastTick = timeGetTime();
            }
        }
    }
	
}




//-----------------------------------------------------------------------------
// Name: WinInit()
// Desc: Init the window
// 初始化window：
//-----------------------------------------------------------------------------
HRESULT WinInit( HINSTANCE hInst, int nCmdShow, HWND* phWnd, HACCEL* phAccel )
{
    WNDCLASSEX wc;
    HWND       hWnd;
    HACCEL     hAccel;
	
    // Register the window class
    wc.cbSize        = sizeof(wc);
    wc.lpszClassName = TEXT("AdvInAbatWndClass");
    wc.lpfnWndProc   = MainWndProc;
    wc.style         = CS_VREDRAW | CS_HREDRAW;
    wc.hInstance     = hInst;
    wc.hIcon         = LoadIcon( hInst, MAKEINTRESOURCE(IDI_MAIN) );
    wc.hIconSm       = LoadIcon( hInst, MAKEINTRESOURCE(IDI_MAIN) );
    wc.hCursor       = LoadCursor( NULL, IDC_ARROW );
    wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
    wc.lpszMenuName  = 0;//MAKEINTRESOURCE(IDR_MENU);
    wc.cbClsExtra    = 0;
    wc.cbWndExtra    = 0;
	
    if( RegisterClassEx( &wc ) == 0 ) {//注册,如果失败输出信息
		LPVOID lpMsgBuf;
		FormatMessage( 
			FORMAT_MESSAGE_ALLOCATE_BUFFER | 
			FORMAT_MESSAGE_FROM_SYSTEM | 
			FORMAT_MESSAGE_IGNORE_INSERTS,
			NULL,
			GetLastError(),
			MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), // Default language
			(LPTSTR) &lpMsgBuf,  //Pointer to a buffer for the formatted (and null-terminated) message
			0,
			NULL 
			);
		OutputDebugString( (LPCTSTR)lpMsgBuf);//debug时输出信息
		// Free the buffer.
		LocalFree( lpMsgBuf ); //释放
        return E_FAIL;
	}
	
    // Load keyboard accelerators  从资源载入加速键
    hAccel = LoadAccelerators( hInst, MAKEINTRESOURCE(IDR_MAIN_ACCEL) );
	
    // Calculate the proper size for the window given a client of 640x480
    DWORD dwFrameWidth    = GetSystemMetrics( SM_CXSIZEFRAME );  //边框的线宽度 比如 3个点
    DWORD dwFrameHeight   = GetSystemMetrics( SM_CYSIZEFRAME );  //边框的线高度
    DWORD dwMenuHeight    = GetSystemMetrics( SM_CYMENU );       //菜单的高度
    DWORD dwCaptionHeight = GetSystemMetrics( SM_CYCAPTION );    //标题栏的高度
    DWORD dwWindowWidth   = SCREEN_WIDTH  + dwFrameWidth * 2;    //窗口的宽度=屏幕+两倍边框线宽
    DWORD dwWindowHeight  = SCREEN_HEIGHT + dwFrameHeight * 2 + 
		dwMenuHeight + dwCaptionHeight;
	
    // Create and show the main window
    // 创建和显示主窗口
	DWORD dwStyle = WS_OVERLAPPEDWINDOW & ~WS_MAXIMIZEBOX; //没有最大化按钮
    hWnd = CreateWindowEx( 0, TEXT("AdvInAbatWndClass"), //class name  
		TEXT("Maze Test program"), //标题
		dwStyle, CW_USEDEFAULT, CW_USEDEFAULT,
		dwWindowWidth, dwWindowHeight, NULL, NULL, hInst, NULL );
    if( hWnd == NULL )
		return E_FAIL;
	
    ShowWindow( hWnd, nCmdShow );
    UpdateWindow( hWnd );
	
    // Save the window size/pos for switching modes
    GetWindowRect( hWnd, &g_rcWindow );  //g_rcWindow 全局变量，为窗口的大小
	
    *phWnd   = hWnd;         //返回创建的主窗口的指针
    *phAccel = hAccel;       //返回加速键表的指针 
	
	g_hMainWnd = hWnd;       //使用全局变量记录应用程序主窗口的句柄
    return S_OK;
}

HFONT GetGameFont()  //设置游戏显示用字体
{
	HFONT      hFont ;
	LOGFONT    lf ;
	
	lf.lfHeight         = 40;     //字高
	lf.lfWidth          = 20;     //字宽
	lf.lfEscapement     = 0 ;
	lf.lfOrientation    = 0 ;
	lf.lfWeight         = 0 ;
	lf.lfItalic         = false ; 
	lf.lfUnderline      = false; 
	lf.lfStrikeOut      = false; 
	lf.lfCharSet        = DEFAULT_CHARSET ;
	lf.lfOutPrecision   = 0 ;
	lf.lfClipPrecision  = 0 ;
	lf.lfQuality        = 0 ;
	lf.lfPitchAndFamily = 0 ;
	
	lstrcpy (lf.lfFaceName, "Times New Roman") ; //字体设置为 “Times New Roman”
	
	hFont = CreateFontIndirect (&lf) ;
	//	hfont = (HFONT)GetStockObject(ANSI_VAR_FONT); 
	return hFont;
}

//-----------------------------------------------------------------------------
// Name: InitDirectDraw()
// Desc: Create the DirectDraw object, and init the surfaces
//-----------------------------------------------------------------------------
HRESULT InitDirectDraw( HWND hWnd )
{
    HRESULT hr;
	
    // Initialize all the surfaces we need 
	//初始化绘制模式,可为窗口模式或全屏模式(g_bWindowed=true ,false)，创建所有的表面，当更改显示模式或设备丢失时会再被调用
    if( FAILED( hr = InitDirectDrawMode( hWnd, g_bWindowed ) ) )
        return hr;
	
    // Create a static IDirectSound in the CSound class.  
    // Set coop level to DSSCL_PRIORITY, and set primary buffer 
    // format to stereo, 22kHz and 16-bit output.
    g_pSoundManager = new CSoundManager(); //创建DirectSound8 的设备
	
    if( FAILED(hr= g_pSoundManager->Initialize( hWnd, DSSCL_PRIORITY, 2, 22050, 16 ) ) )//优先级, 双声道, 采样频率22050,16 bit
    {
        MessageBox( 0, "Error initializing DirectSound.  Game will now exit.", 
			"Game", MB_OK | MB_ICONERROR );
        return hr;
    }
	
	g_pSoundManager->Create(&g_pPickupSound,"PickUp");   // 创建Csound  g_pPickupSound ,加载PickUp 声音
	g_pHandleInput = new SHandleInput();       //DirectInput 结构体
	
    return S_OK;
}




//-----------------------------------------------------------------------------
// Name: InitDirectDrawMode()
// Desc: Called when the user wants to toggle between full-screen and windowed 
//       to create all the needed DDraw surfaces and set the coop level
//-----------------------------------------------------------------------------
HRESULT InitDirectDrawMode( HWND hWnd, BOOL bWindowed )
{
    HRESULT		        hr;
    LPDIRECTDRAWPALETTE pDDPal   = NULL; 
	
    // Release all existing surfaces
	SAFE_DELETE( g_pMazeSurface);  
#ifdef DISPLAY_STATUS
    SAFE_DELETE( g_pTextSurface );
#endif
	SAFE_DELETE( g_pLifeTextSurface );
	SAFE_DELETE( g_pScoreTextSurface );
	SAFE_DELETE( g_pLevelTextSurface );
	SAFE_DELETE( g_pSpriteSurface );
	SAFE_DELETE ( g_pSplashSurface);
	SAFE_DELETE( g_pDisplay );
	
    //在满屏模式和窗口模式下，主页面和后台页面的创建方式是不同的
    g_pDisplay = new CDisplay();  //CDisplay 为DirectX8.0 提供的一个类，封装了DirectDraw7的表面
	//窗口模式
    if( bWindowed )
    {
        if( FAILED( hr = g_pDisplay->CreateWindowedDisplay( hWnd, SCREEN_WIDTH, 
			SCREEN_HEIGHT ) ) )
            return hr;
		//CreateWindowedDisplay 创建了Window模式的DirectDraw7 对象，并创建了前后页面，设置了剪裁


        // 在窗口方式中添加系统菜单
        DWORD dwStyle = GetWindowLong( hWnd, GWL_STYLE );
        dwStyle |= WS_SYSMENU;
        SetWindowLong( hWnd, GWL_STYLE, dwStyle );//添加菜单属性
		
        // Show the menu in windowed mode 
#ifdef _WIN64  //64位
        HINSTANCE hInst = (HINSTANCE) GetWindowLongPtr( hWnd, GWLP_HINSTANCE );
#else
        HINSTANCE hInst = (HINSTANCE) GetWindowLong( hWnd, GWL_HINSTANCE );//取得句柄
#endif
        HMENU hMenu = LoadMenu( hInst, MAKEINTRESOURCE( IDR_MENU ) ); //从资源加载菜单：IDR_MENU
        SetMenu( hWnd, hMenu );  //设置菜单
    }
    else//满屏独占显示模式
    {
        if( FAILED( hr = g_pDisplay->CreateFullScreenDisplay( hWnd, SCREEN_WIDTH, 
			SCREEN_HEIGHT, SCREEN_BPP ) ) )  //较窗口模式多了一个 SCREEN_BPP 参数
        {
            MessageBox( hWnd, TEXT("This display card does not support 640x480x8. "),
				TEXT("DirectDraw Sample"), MB_ICONERROR | MB_OK );
            return hr;
        }
		
        // 无效菜单
        SetMenu( hWnd, NULL );
		
        // 从窗口方式中删除系统菜单
		/*
        DWORD dwStyle = GetWindowLong( hWnd, GWL_STYLE );
        dwStyle &= ~WS_SYSMENU;
        SetWindowLong( hWnd, GWL_STYLE, dwStyle );       
		*/
    }
	
	//以上创建了前后台页面，设置了剪裁
	//下面创建游戏的表面
	
	// 创建一个页面，在上面绘制文本
#ifdef DISPLAY_STATUS
	//创建用于显示游戏状态的页面
	if( FAILED( hr = g_pDisplay->CreateSurfaceFromText( &g_pTextSurface, NULL, (char*)g_szGameStatus,  //字体NULL使用原来设置，g_szGameStatus：显示内容文字
		RGB(0,0,0), RGB(255, 255, 0) ) ) ) //*背景* ，字体颜色 
		return hr;
#endif
 	HFONT hFont = GetGameFont();  //设置显示用字体
	if( FAILED( hr = g_pDisplay->CreateSurfaceFromText( &g_pLifeTextSurface, hFont, (char*)g_szLifeLeft, 
		RGB(0,0,0), RGB(255, 255, 0) ) ) )  //创建用于显示 LifeText 的表面
		return hr;
	if( FAILED( hr = g_pDisplay->CreateSurfaceFromText( &g_pScoreTextSurface, hFont, (char*)g_szScore, 
		RGB(0,0,0), RGB(255, 255, 0) ) ) )  //创建用于显示分数的表面
		return hr;
	
	
    // Create a surface, and draw a bitmap resource on it.  The surface must 
    // be newly created every time the screen mode is switched since it 
    // uses the pixel format of the primary surface
	// Create a surface, and draw text to it.  
	if( FAILED( hr = g_pDisplay->CreateSurface( &g_pMazeSurface, SCREEN_WIDTH, SCREEN_HEIGHT) ))
		return hr;        //创建迷宫表面，设置表面的宽和高
	
	if( FAILED( hr = g_pDisplay->CreateSurfaceFromBitmap( &g_pSpriteSurface, MAKEINTRESOURCE(IDB_SPRITE),0, 0) ))
		return hr;        //创建精灵表面，加载图形，由图形决定表面的宽和高，该图形上有所有的精灵各种状态的图案
	
	g_pSpriteSurface->SetColorKey(RGB(0,0,0));  //设置透明色
	g_Maze.Draw(g_pMazeSurface); //画迷宫
	
	//以下为根据不同的状况加载不同的JPEG画面图像
	if (g_nGameState == GAMESTATE_SPLASHSCREEN) { //封面
		LoadJPEG(true, SPLASHFILENAME,  &g_pSplashSurface);  //加载JPEG 封面图像,如果该表面未创建,创建它
	}
	if (g_nGameState == GAMESTATE_CHOICE) {   //游戏选项
		LoadJPEG(true, CHOICEFILENAME,  &g_pSplashSurface);
	}
	
	if (g_nGameState == GAMESTATE_GAMEOVERGOOD) {  //游戏好的结束
		LoadJPEG(true, GAMEOVERGOODFILENAME,  &g_pSplashSurface);
	}
	if (g_nGameState == GAMESTATE_GAMEOVERBAD) {  //游戏不好的结束
		LoadJPEG(true, GAMEOVERBADFILENAME,  &g_pSplashSurface);
	}
	if (g_nGameState == GAMESTATE_RUNNING){       //游戏进行中，创建关卡文字页面Level n
		g_pDisplay->CreateSurfaceFromText( &g_pLevelTextSurface, hFont, g_Maze.GetName(), 
			RGB(0,0,0), RGB(255, 255, 0) ) ;
		
	}
	DeleteObject(hFont);
    return S_OK;
}

inline bool IsHit(RECT& rc)  //检测 rc矩形是否与迷宫壁碰撞
{
	return g_Maze.IsHit(rc); 
}

void BulletFindPath(CSprite* pSprite)
{
	pSprite->SetState(ST_KILL);
}

void FindPath(CSprite* pSprite) //路径查找
{
	//该函数设置精灵追逐玩家
	int nH = rand()%2;
	int nV = rand()%2;
	int nNRnd = rand()%3; //0，1，2
	if (nNRnd) { //三分之二概率，能够自动接近玩家
		
		if (abs(g_pPlayerSprite->m_ptLocation.x - pSprite->m_ptLocation.x) > //精灵与玩家的x坐标差值较大
			abs(g_pPlayerSprite->m_ptLocation.y - pSprite->m_ptLocation.y))
			
		{   // x 靠拢
			pSprite->m_Movement.m_dy = 0;
			if (g_pPlayerSprite->m_ptLocation.x < pSprite->m_ptLocation.x) {
				pSprite->m_Movement.m_dx= -1 * (rand()%2+1);
				pSprite->SetState(ST_WALK_LEFT);
				
			} else {
				pSprite->m_Movement.m_dx= 1 * (rand()%2+1);
				pSprite->SetState(ST_WALK_RIGHT);
			}
		} else { // y 靠拢
			pSprite->m_Movement.m_dx = 0;
			if (g_pPlayerSprite->m_ptLocation.y < pSprite->m_ptLocation.y) {
				pSprite->m_Movement.m_dy= -1 * (rand()%2+1);
				pSprite->SetState(ST_WALK_UP);
			} else {
				pSprite->m_Movement.m_dy= 1 * (rand()%2+1);
				pSprite->SetState(ST_WALK_DOWN);
			}
		}
	} else {  //三分之一概率，随机乱走