Append — concatenate two strings into one

Pure node. For multiple strings, chain multiple Append nodes or use Format Text.

Array Add — add an element to the end of an array

Target Array is the array variable (pass by reference). Returns new array length.

Array_Add — add element to end of array

UKismetArrayLibrary::Array_Add. Returns new index.

Concat_StrStr — concatenate two strings

Add_FloatFloat — add two floats

Pin names A, B, ReturnValue.

BuildString — build formatted string with prefix, suffix, and value

Also: BuildString_Int, BuildString_Name, BuildString_Vector, etc.

Create widget, add to viewport, and store reference

Pattern: EventBeginPlay → CreateWidget(OwningPlayer=GetPlayerController, WidgetType=WBP_MyWidget) → SetVariable(HUDWidget=ReturnValue) → CastTo<WBP_MyWidget>(HUDWidget) → Cast Succeeded → AddToViewport(ZOrder=0). Always store widget reference in a variable. CreateWidget inputs: 'OwningPlayer' (PlayerController) and 'WidgetType' (class). Exec in='execute', exec out='then'.

Inventory: add/remove items with array of structs

Create struct FInventoryItem: {ItemName (Name), ItemCount (int), ItemData (object ref)}. Variable: Inventory (Array<FInventoryItem>). AddItem: ForEachLoop(Inventory) → CastTo/Break FInventoryItem → Branch(ItemName==NewItem.Name) → True: Get → Modify Count → Array Set (replace at index) → return. If not found: Make FInventoryItem → Array Add. RemoveItem: Find by name → Branch(Count>1) → True: decrement → Set at index. Else: Array Remove at index. Key: Arrays of structs require 'Array Set' with index to modify in place — getting and modifying a copy does NOT update the array.

Add

Standard addition. Works on Integer, Float, Vector, Rotator, etc — UE picks the right overload from pin types.

Add_VectorVector — add two vectors