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How to I make my background scroll. I am developing a game using c# and directX.

Posted on 2005-03-01
Medium Priority
Last Modified: 2013-12-08
I have a game in c# and directX and want to put in a scrolling background. This is a 2D game. All help greatly appreciated.
Question by:pmaguire9
  • 3
LVL 17

Accepted Solution

davebytes earned 500 total points
ID: 13434341
There are many approaches to scrolling a background, it depends on what the PRECISE effect is you want to obtain, and how large a 'virtual scrolling' section you intend.

For instance, if you have a fixed/wrapping background, larger than one screen width, you can 'simply' offset the coordinates into a large texture, shifting them, and when both side have 'wrapped' off the end you 'jump' them back based off 0,0.

If you want a very dynamic background, you can build it using individual 'tile' graphics.  Each frame, you can completely re-image the background at whatever the current offset is -- with DirectX (Direct3D), all the textures/tiles can be in hardware, makes it really fast to render any tiled layout.


Assisted Solution

lplayer earned 500 total points
ID: 13467231
Rather than explain lots of detail here I would suggest you look at:


The example relates to VB but the site also containd C++ code too.

LVL 17

Expert Comment

ID: 13474055
right.  that only deals with one particular case of tiling, and a somewhat fixed one at that.  what the game IS, how smoothly it wants to scroll, how fixed/dynamic is the background, etc., all play into the answer.

But otherwise, that's a decent link.  However, there's a ton more over at gamedev.net, dealing with a variety of different background methods.  Search on 'scrolling' and you'll see all the links.

LVL 17

Expert Comment

ID: 14148815
if you need more help, please ask.  otherwise, this question should be closed or accepted.

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