Arranging objects with X pixel Overlaps??

Hi guys.

I'm trying to create a Layered Cake-type game and I'm trying to

randomly spawn different thickness layers and have them arranged allowing about 5 pixel-wide overlaps.

See not all the layers are rectangular. The "Icing" layers have sinusoidal edges.

Can you separate the icing edges from the icing thickness?

Can you separate the icing edges from the icing thickness?

I can do that as a workaround but I'd rather not because of memory usage. We're talking about generating a new randomized set of of "cake" and "icing" layers every 8-10 seconds.

Is the 9-patch plugin an option ? (besides that you can not use it in familys)

https://www.scirra.com/manual/151/9-patch

Is the 9-patch plugin an option ? (besides that you can not use it in familys)

https://www.scirra.com/manual/151/9-patch

Haven't thought about that but since you say I can't use it in families then probably not. All cake and icing layers are in the same family.

I meant, you can not use it in families containg others types of objects.