How do you all do your boundaries/collisions?

[Spike]

First of all you can use an object as a mask if you so wish to detect collisions with the backdrop properly. Use an active object, take it from the shape of your backdrop. Then make it invisible in the event editor, and set your collision that way.

This isn't a must though, you are able to just make your backdrops solid objects so that your player can't collide. But using a mask can give you better effects, such as your play been able to walk infront of the buiding but not actually onto it.

As for it been buggy, what type of movement are you using? If your using one of the default movements that come with MMF then they are well known to be buggy. I and pretty much everyone here would most likely suggest that you learn to use custom movements if your not doing so already.

[mobichan]

This might be a little off topic, but a lot of games create the collision on a layer that is separate from the visible art. Have you tried putting all your bg art on a layer and then making a layer ABOVE that one with all your player/enemy/collision data? That way, you can make actives/backdrops that sit in the same layer as the player and you can do collision checks on them.

I generally make Actives that have been painted a color I can recognize for collision. Then I copy and resize them and place them so that they overlap the parts of the bg I want to have collision. When I have finished editing their sizes and positions, then I just uncheck the "Visible at Start" box in their properties. You could also put all of the collision objects in a Qualifier group and then tell the group to become invisible at "Start of Frame."

Sorry if this sounded a bit ranty. Hopefully someone can find some releveance in it. ^_^'

Mobichan