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I need code really badly!

Started by jimiwa 9 replies 1.8k views
Original Post
jimiwa
jimiwa
I started to write a 2d game using direct3d. Lots of people told me I should use direct3d instead of direct draw. The problem is, when I just blitted to a surface I couldn't do clipping. So I tried to use textures for my animations. That made my game REALLY slow because I have a lot of sprites in my program. So I've decided I'm going to try direct draw. Could someone please give me code for an animation using direct draw 7 that will compile under direct x 9 summer update edition? Right now I've got directdraw set up but I got stuck at GetAttachedSurface. My compiler wants me to use LPDDSCAPS2 in GetAttachedSurface, but I can't do this with it: ddscaps.dwCaps = DDSCAPS_BACKBUFFER it is saying basically that the left of the . must be a structure or object, I think. Anyway, I'm using data types with the 7 after them, so I need that type of code. I just want enough beginning at setting the backbuffer that continues on to set a color key for transparency and allows for clipping and just basically shows one simple sprite on the screen. If I have enough code to do that I can figure out my game the rest of the way, and I understand code well enough to get it to work with what I'm doing, it just has to be complete code with initializations and everything included. I would REALLY appreciate it if someone could help me on this. Thanks.
ironbox
ironbox
I thought microsoft got rid of directdraw since 8.0
ironbox
ironbox
I thought microsoft got rid of directdraw since 8.0
Alpha_ProgDes
Alpha_ProgDes
they stopped updating directdraw. but it still works with DX 8 or 9. and you can still code and compile DX 7 code with it.

i believe if you can find the ddraw.h file and changed the directdraw version to 0x7000 you'll be fine.
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Sante05
Sante05
For 2D programming, I'd use SDL, it's way simpler and gives the same results. Also, with it you can port your game to other platforms (if you want to).

Just go to http:\\www.libsdl.org and download it, you will soon forget about DirectDraw.

Good luck.
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Pipo DeClown
Pipo DeClown
jimiwa, any code you find for DirectDraw should be for version 7. Nothing has changed in version 8 nor in version 9. DirectX is backwards compatible so you can easily compile version 7 code.
Zipster
Zipster
No one is going to take the time to write code for you, especially something like an animation system. We will answer specific questions however.

Quote:
The
problem is, when I just blitted to a surface I couldn't do
clipping.

What kind of clipping did you have in mind? Only rendering to certain areas of the render target? Stencil buffers can be used to accomplish this.
jimiwa
jimiwa
I'm figuring it out. I don't need someone to write code
, I'll just be asking a few questions on what I've done
so far in other threads.
johnnyBravo
johnnyBravo
how bout using d3d, its better than ddraw

u have no clue if u think ddraw is better
GreggBz
GreggBz
Well here is some old dirrect draw clipping code from a VB.NET project of mine. It works nice, I think I got it from here actually faily elegant... ahhemm.

BTW DirectX 9.0 includes dirrect draw, it's just unchanged from the 8.0 version.

Dim srcrect As New System.Drawing.Rectangle
Dim destrect As New System.Drawing.Rectangle(xPixel - offsetX, yPixel + offsetY, 100, 100)
srcrect = (solarsystem.sourceframe(solarsystem.curframe))
Dim cliprect As New Rectangle(0, 0, 800, 600) 'clipper rectange.. whole screen
If destrect.X < cliprect.X Then srcrect.X += cliprect.X - destrect.X
If destrect.Y < cliprect.Y Then srcrect.Y += cliprect.Y - destrect.Y
destrect.Intersect(cliprect)
srcrect.Height = destrect.Height
srcrect.Width = destrect.Width
If destrect.Width > 0 AndAlso destrect.Height > 0 Then
back.Draw(destrect, solarsystem.surfaceAnimation, _
srcrect, DrawFlags.DoNotWait Or DrawFlags.KeySource)
End If
End If
Night Elf
Night Elf
If you found using D3D for your sprites was too slow, chances are that either you made a mistake in your code (e.g. using too many textures, no texture batching, using multiple ID3DXSprites...) or you're drawing so much sprites that you'll find a DirectDraw version equally slow. I bet the first one was it.

Maybe you would like to post some of your D3D sprite rendering code so we can see if anything is wrong.

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