ddrawwrapper.cpp

VC++高级编程技巧与示例

// DDrawWrapper.cpp : Defines the entry point for the application.
//
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
//-----------------------------------------------------------------------------
// Include files
//-----------------------------------------------------------------------------
#include <windows.h>
#include <ddraw.h>
#include <stdio.h>
#include <stdarg.h>
#include "ddutil.h"
#include "stdafx.h"
#include "HDirectDraw.h"
#include "HDDrawSurf.h"

#define TIMER_ID            1
#define nFrames 15
BOOL  g_bActive=FALSE;
BOOL  g_bFirst=0;
LPCTSTR szFrontMsg="Front!";
LPCTSTR szBackMsg ="Back!";

static char * fn[nFrames]={
	"ManWalk_0001.bmp","ManWalk_0002.bmp","ManWalk_0003.bmp",
	"ManWalk_0004.bmp","ManWalk_0005.bmp","ManWalk_0006.bmp",
	"ManWalk_0007.bmp","ManWalk_0008.bmp","ManWalk_0009.bmp",
	"ManWalk_0010.bmp","ManWalk_0011.bmp","ManWalk_0012.bmp",
	"ManWalk_0013.bmp","ManWalk_0014.bmp","ManWalk_0015.bmp"
	};

static char * skyfn="sky.bmp";
static char * sceneryfn="Scenery.bmp";

CDirectDraw DDraw;

CDDrawSurf Surf[nFrames];

CDDrawSurf Sky;

CDDrawSurf Scenery;

_SURFACE_DATA g_Dat;

void DeleteAllObjects()
{
	DDraw.CloseDDraw();
	Sky.Delete();
	Scenery.Delete();
	for(int i=0;i<nFrames;i++)
	{
		Surf[i].Delete();
	}
}

void UpdateFrame(HWND hWnd)
{
	static BYTE phase = 0;
    static BYTE bc    = 0;
	static int sx     = 0;
	static int sy     = 337;
	static int iframe=0;
	DDraw.ClearBackBuffer();
	//先贴表面：
	Sky.Blit(0,0,FALSE);
	Scenery.Blit(sx,0);
	Surf[iframe].Blit(320,sy);

	//再写字：
	DDraw.GetDC(DDraw.lpDDSBack);
	{
		DDraw.SetTextColor(RGB(255,255,0));
		DDraw.SetBkColor(RGB(0,0,255));
		if(phase==0)
		{
			DDraw.TextOut(400,10,"Primary");
			phase=1;
		}
		else
		{
			DDraw.TextOut(400,10,"Back");
			phase=0;
		}

		DDraw.TextOut(400,40,"Press the F12 key!");
		//画线：
		HPEN op;
		HPEN hp=::CreatePen(PS_SOLID,1,RGB(255,255,0));
		op=(HPEN)::SelectObject(DDraw.hDC,hp);
		DDraw.MoveTo(400,60);
		::LineTo(DDraw.hDC,520,60);
		::SelectObject(DDraw.hDC,op);
		::DeleteObject(hp);
	}
	DDraw.ReleaseDC();

	sx=(sx==-1280?0:sx-4);
	iframe=(iframe==(nFrames-1)?0:iframe+1);
}

long FAR PASCAL
WindowProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
        case WM_DESTROY:
            // Clean up and close the app
			DeleteAllObjects();
            PostQuitMessage(0);
            return 0L;

        case WM_KEYDOWN:
            // Handle any non-accelerated key commands
            switch (wParam)
            {
                case VK_ESCAPE:
                case VK_F12:
                    PostMessage(hWnd, WM_CLOSE, 0, 0);
                    return 0L;
            }
            break;

        case WM_SETCURSOR:
            // Turn off the cursor since this is a full-screen app
            SetCursor(NULL);
            return TRUE;

        case WM_TIMER:
            // Update and flip surfaces
            if (g_bActive && TIMER_ID == wParam)
            {
                UpdateFrame(hWnd);
				DDraw.Flip();
            }
            break;
		case WM_ACTIVATEAPP:
			{
				g_bActive = (wParam == WA_ACTIVE) || (wParam == WA_CLICKACTIVE);
				if(g_bActive&&g_bFirst!=0)
				{
					int i;
					if(!DDraw.Restore())
					{
						SaveInfo("DDraw_Restore失败.txt","DDraw.Restore（）失败!");
					}
					if(!Sky.Restore())
					{
						SaveInfo("Sky_Restore失败.txt","Sky.Restore（）失败!");
					}
					if(!Scenery.Restore())
					{
						SaveInfo("Scenery_Restore失败.txt","Scenery.Restore（）失败!");
					}
					for(i=0;i<nFrames;i++)
					{
						if(!Surf[i].Restore())
						{
							SaveInfo("Surf_Restore失败.txt","Surf.Restore（）失败!");
						}
					}
				}
				g_bFirst=1;
				return 0L;
			}
    }
    return DefWindowProc(hWnd, message, wParam, lParam);
}

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
 	// TODO: Place code here.
    MSG msg;

    if (DDraw.CreateDDrawWnd(hInstance, nCmdShow,WindowProc) != TRUE)
	{
        return FALSE;
	}
	if(DDraw.InitDDraw(640,480,32)!=TRUE)
	{
		return FALSE;
	}

	if(DDraw.BPP==8)
	{
		if(!DDraw.SetPalette(skyfn))
		{
			return FALSE;
		}
	}

	//初始化表面参数：
	//小人：
	memset(&g_Dat,0,sizeof(g_Dat));
	g_Dat.BPP=24;
	g_Dat.DisplayBPP=32;
	g_Dat.clrkeyFlags=TRUE;
	g_Dat.Height=128;
	g_Dat.lpDD=DDraw.lpDD;
	g_Dat.Colorkey=RGB(255,255,255);
	g_Dat.lpDestSurf=DDraw.lpDDSBack;
	g_Dat.m_bFromFile=1;
	g_Dat.Width=128;
	g_Dat.XS=0;
	g_Dat.YS=0;
	for(DWORD i=0;i<nFrames;i++)
	{
		strcpy(g_Dat.fn,fn[i]);
		if(!Surf[i].Create(&g_Dat))
		{
			SaveInfo("创建表面失败.txt","!Surf[i].Create(&g_Dat)");
			return 0;
		}
	}
	//天空：
	g_Dat.Height=480;
	g_Dat.Width =640;
	strcpy(g_Dat.fn,skyfn);
	Sky.Create(&g_Dat);
	//背景：
	g_Dat.Height=480;
	g_Dat.Width =1920;
	strcpy(g_Dat.fn,sceneryfn);
	Scenery.Create(&g_Dat);
	//设置计时器：
	if(DDraw.SetTimer(1,1)!=TRUE)
	{
		return FALSE;
	}

	while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}