Getting rid of globals
August 02, 2002 09:59 PM
I''ve been programming in DirectX using Andre LaMothe''s style from TOTWGPG, and in his code he uses global variables extensively. I want to move away from using so many globals, as I''ve heard they get to be a hassle as programs grow in size. How would I go about replacing all the globals for DirectX and Windows? I tried placing all the variables in a class, but I didn''t know where to declare the class (WinMain?) If anyone can share as to how they deal with all these variables, I''d be very thankful. Thank you
150
August 02, 2002 10:24 PM
As u said when ur codes grow up it becomes hard to handle TONES of variables. But because global variables are needed for Dx stuffs, this what i do. I create 2 files a *.h and a *.cpp that handle the Dx stuffs.This is the declaration of my Dx class:
That''s what i did myself bt u can modiy it as u want.
Hope it helps
class GDEVICE{ LPDIRECTDRAW7 lpDD; LPDIRECTDRAWSURFACE7 lpddsPrimary,lpddsBack; LPDIRECTDRAWCLIPPER lpddcClipper; DDSURFACEDESC2 desc; int Width,Height,Depth; BOOL FullScreen; public: HINSTANCE hInstance; HWND hWnd; GDEVICE(); //~GDEVICE(); int Initialize(int iWidth,int iHeight,int iDepth,BOOL bFullScreen,HWND hWnd); int Initialize(int iWidth,int iHeight,int iDepth); int Flip(DWORD dwFlag=DDFLIP_WAIT); int Restore(); int SetScreenMode(BOOL bFullSreen,HWND hWnd) ; BOOL GetScreenMode(); BOOL CreatePrimarySurface(int iBufferCount=1); BOOL CreateBackSurface(); LPDIRECTDRAWSURFACE7 CreateOffScreenSurface(int iWidth,int iHeight, DWORD dwFlag=DDSCAPS_VIDEOMEMORY); LPDIRECTDRAWSURFACE7 LoadBitmapToSurface(char* filename); int Release();}; That''s what i did myself bt u can modiy it as u want.
Hope it helps
"...and we all know what "undefined" means: it means it works during development, it works during testing, and it blows up in your most important customers' faces."----------Scott Meyers, "Effective C++"
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