"Locking" a Sprite to another

Not sure if "locking" is the correct term.

I am making a Building Blocks style game.

My goal is something like this:

Building Blocks

I just need to figure out how one box would not lock onto another, as in this game. The Tower cannot fall over.

Thanks in advance.

The Pin behavior locks a sprite to another sprite, try that!

It was the first thing I tried and it wont work.

Hmm, could you explain a little bit more of what it is your trying to accomplish ?

Cheers !!

Game

The blocks that get dropped must "Stick"...and not eventually topple.

The only blocks that should fall are the ones that are placed too far over, but still on top of another. KWIM?

You mean, the blocks should "snap" together when droped on top of each other?

yup

...it takes away part of the realism you are archiving with the physics behaviour.

By snapping, do you also mean aligning on the x-axis?

no, not aligning on the x-axis. Blocks should still fall when misplaced or missed completely by the player.

...it takes away part of the realism you are archiving with the physics behaviour.

Any other suggestions then?

If the whole tower topples, the player wont be able to see where to place the next block.

I am still not sure, what the "snap" will "bring". I am just looking on how it works right now, and it makes alot of sense to me....

and to be honest, right now, I have no idea how to "implement" the snap.

Try this - even thou its not snapping.

Set all, but the Elasticity attribute of the Shield to one. Elasticity to zero

I dont know how you did it with the pin behaviour. But I tried a very simple test with Pin to behavior, and it works really well:

http://dl.dropbox.com/u/52716812/PinToExample.capx

If the whole tower topples, the player wont be able to see where to place the next block.

Remeber me suggesting, that the platform could also move UP?!

I dont know how you did it with the pin behaviour. But I tried a very simple test with Pin to behavior, and it works really well:

Yes it works BUT it also prevents that the tower will fall apart if a box is placed on top it very crooked

Yes it works BUT it also prevents that the tower will fall apart if a box is placed on top it very crooked

You just add a check. If the angle is too great, then dont pin it to the behavior, and let it fall off