Looping Background

[Febe]

I'm not sure if this is the same thing as a wrapping background, but I have minimal prior experience with this program and approximately 48 hours to put together a simple game for an art class that requires a looping background. If anyone could explain to me exactly how to do this it would be much appreciated.
Thanks a million.

[Pixelthief]

Very simple way. If your game is scrolling already, just add a layer (Ctrl + K in the frame editor, then the + button in the layers toolbar).

Select the new layer, and hit (Ctrl+D), this opens up the editor. You might need to click on it again to get focus.

Click the check boxes for "Wrap Horizontally" or "Wrap Vertically", then set the "X/Y Coefficient"s. For example, 0.5 makes it scroll at 50% of the speed of the normal layers. Now take your backdrop image and drag it onto the layer in your layers toolbar- the object won't be moved, but it will switch layers.


If your game isn't scrolling, but you want the layer to keep moving and wrap around, you can give that layer an offset. Do an "Add object", and add the "Layer Object" extension. Now you can go into the code, and add an event like:

+Always
=(Action of Layer Object) Set X Position of Layer 1 to (some value)

I've uploaded an easy example:
http://www.clickteam.com/epicenter/ubbthreads.php?ubb=showflat&Number=231496&#Post231 496

[Febe]

Thanks! I still seem to be having some trouble, as following these steps doesn't seem to work.
The background is 2400x600 (doesn't feature a simple pattern), and should cycle back to the beginning of where it begins scrolling; I'm not sure if this would have any impact on whether or not your suggestion would work, but please let me know.

Thanks again, I really appreciate it.