If you have a list of objects that need to be updated, but it isn't important that they all be updated each frame, this code will update just one or more each frame. The update callback should return 1 if any updating has been performed, or 0 if no updating was needed.
This allows you to do things like just update one enemy AI per frame. I am going to try using it for culling.
Strict
Import brl.linkedlist
Type TASyncLoop
Field list:TList
Field currentlink:TLink
Field UpdateCallback%(o:Object,extra:Object)
Method Update(count=1,extra:Object=Null)
Local link:TLink
Local o:Object
Local firstlink:TLink
If currentlink
If currentlink._value=Null currentlink=Null
EndIf
If currentlink=Null currentlink=list.firstlink()
If currentlink=Null Return
firstlink=currentlink
Repeat
If count=0 Return
o=currentlink.value()
If o
If UpdateCallback(o,extra) count:-1
EndIf
currentlink=currentlink.nextlink()
If currentlink=Null currentlink=list.firstlink()
If currentlink=Null Return
If currentlink=firstlink Return
Forever
EndMethod
EndType
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