ForEachLoop — iterate over array elements

Macro. Iterates each element. LoopBody fires per element, Completed fires after all.

Array: build dynamic list, iterate, find and remove items

ADD: Array Add (Target Array=MyArray, New Item=newElement). READ: Array Get (Target Array=MyArray, Index=i) → use 'Item' output. FIND: Array Contains (returns bool) or Array Find (returns index, -1 if not found). REMOVE by index: Array Remove (Target Array=MyArray, Index=i). REMOVE by value: Array Remove Item (Target Array=MyArray, Item=value). ITERATE: ForEachLoop(Array=MyArray) → 'Array Element' output is the current item. LENGTH: Array Length (returns int). Key: Array nodes operate on the array BY REFERENCE — always connect the array variable directly.

ForLoop — loop from FirstIndex to LastIndex

Exec outputs: 'Loop Body' (fires each iteration) and 'Completed' (fires after last iteration).

ForEachLoopWithBreak — iterate with ability to break early

ForEachLoop

Iterates over every element of an array, executing the loop body once per element. Use ForEachLoopWithBreak if you need an early exit.

ForEachLoop — iterate over every element in an array

Exec outputs: 'Loop Body' and 'Completed'. Data outputs: 'Array Element' and 'Array Index'.

ForEachLoop iterating over actor array from GetAllActorsOfClass

Pattern: GetAllActorsOfClass(ActorClass=BP_Enemy) → ForEachLoop(Array=OutActors) → Loop Body → CastTo<BP_Enemy>(Object=Array Element) → Cast Succeeded → [do work on enemy]. ForEachLoop exec in='execute'. Exec outs: 'Loop Body' (each element) and 'Completed' (after all elements). Data outs: 'Array Element' (current item, wildcard type) and 'Array Index' (int). GetAllActorsOfClass output is 'OutActors' (NOT 'ReturnValue' or 'Actors').

Array

An ordered list of values of one type. Add/Remove/Find/Get by index. Pair with ForEachLoop for iteration.

WhileLoop — loop while condition is true

Macro. WARNING: can cause infinite loop if condition never becomes false.

string

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