game.cpp

游戏编程很好的东西大家看看啊可以学到很多东西

/////////////////////////////////////////////////////////////////////////////////
#include "Game.h"

#include "../FreeDirectX/ExportFreeDirectX.h"
/////////////////////////////////////////////////////////////////////////////////
extern HWND			g_h_wnd;
extern HINSTANCE	g_h_instance;
extern bool			g_b_quit;
extern int			g_n_width;
extern int			g_n_height;
extern int			g_n_bit;

IFreeDirectDraw*	g_direct_draw = NULL;

CONFIG				g_config;
BITMAP_FILE			g_bitmap;
OFFSCREEN			g_off_screen;
/////////////////////////////////////////////////////////////////////////////////

/*---------------------------------------------------------------------------------
功能：游戏初始化
说明：
返回：
---------------------------------------------------------------------------------*/
void Game_Init()
{
	HRESULT		hr;
	int			nRet;

	int			width,height;

	::CoInitialize( NULL );

	//////////////////////////////////////////////////////////////////////////////////////
	//初始化
	hr = CoCreateInstance(CLSID_FreeDirectDraw, NULL, CLSCTX_INPROC_SERVER, IID_IFreeDirectDraw, (void**)&g_direct_draw );

	if( FAILED( hr ) )
	{
		return;
	}

	//////////////////////////////////////////////////////////////////////////////////////
	//载入配置信息
	strcpy( g_config.m_file_name, "FreeDirect.ini" );

	g_direct_draw->LoadFromConfigFile( (ULONG)&g_config );

	g_n_bit		= g_config.m_n_bit;
	g_n_width	= g_config.m_n_width;
	g_n_height	= g_config.m_n_height;

	nRet = g_direct_draw->Init( (ULONG)g_h_wnd, g_n_width, g_n_height, g_n_bit );

	if( nRet != 0 )
	{
		return;
	}

	//////////////////////////////////////////////////////////////////////////////////////
	//载入位图
	g_direct_draw->LoadBitmapFile( (ULONG)&g_bitmap, (ULONG)g_config.m_file_name );
	g_direct_draw->UpdatePalette( (ULONG)&g_bitmap.m_palette );

	width	= abs( g_bitmap.m_info_head.biWidth );
	height	= abs( g_bitmap.m_info_head.biHeight );
	g_direct_draw->CreateOffScreenPlain( (ULONG)&g_off_screen, width, height, DDSCAPS_VIDEOMEMORY );

	g_direct_draw->CopyBitmapToPlain08( (ULONG)&g_bitmap, (ULONG)&g_off_screen );
	g_direct_draw->ShowUnit( (ULONG)&g_off_screen, 0, 0 );
}

/*---------------------------------------------------------------------------------
功能：清除游戏资源
说明：
返回：
---------------------------------------------------------------------------------*/
void Game_UnInit()
{
	g_direct_draw->UnloadBitmapFile( (ULONG)&g_bitmap );
	g_direct_draw->ReleaseOffScreenPlain( (ULONG)&g_off_screen );

	g_direct_draw->UnInit();
	g_direct_draw->Release();
	g_direct_draw = NULL;

	::CoUninitialize();
}


/*---------------------------------------------------------------------------------
功能：键盘消息处理
说明：
返回：
---------------------------------------------------------------------------------*/
void KeyAction(WPARAM wParam)
{
	switch(wParam)
	{
	case VK_SPACE:
		{
			g_direct_draw->Flip();
		}
		break;
	case VK_RETURN:
		{
		}
		break;
	}
}

/*---------------------------------------------------------------------------------
功能：游戏主循环
说明：
返回：
---------------------------------------------------------------------------------*/
void Game_Main()
{
	if( g_b_quit )
	{
		return;
	}
}