How do I make sure function X is done before calling function Y?

Function X:

Create 1000 objects

Function Y:

If object count is less than 1000. -Wait 1 second. -Call Function Y

Else Destroy all objects

By calling Function Y inside of Function Y it gives you a loop that you can easily control. You have to be careful though that you don't create an endless loop. You can check this by adding a global variable and each time Function Y runs it can add 1 to the variable. This allows you to check in debugger how many times Function Y runs. When you confirm Function Y is acting how it should then delete the global variable. dop2000's would be more efficient though, but I think it has to do with how the logic is set up. I never messed with asynchronous yet.

***edit***

The wait in Function Y was just to reduce how many times Function Y is called while waiting for Function X to complete. It isn't needed unless you just want a very small performance increase.

I will edit my post to be clear. The wait was to reduce how many times function Y was called while waiting for function X to finish.

mutajon In this case I would do something like this:

Call Function CreateObjects
Wait 0

 While
 Object is overlapping Object 
 Loopindex<1000
..........Call Function RearrangeObjects