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scripts/Events/Flow/EventGroup.gd

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+class_name EventGroup extends "res://scripts/Events/Flow/EventWithChildren.gd"
+
+enum ProcessType {
+	SEQUENTIAL,
+	PARALLEL,
+}
+
+@export var processType:ProcessType = ProcessType.SEQUENTIAL;
+
+var childIndex:int = 0
+
+func start() -> void:
+	super.start()
+
+	# If sequential, start first child
+	if processType == ProcessType.SEQUENTIAL:
+		childIndex = -1
+		nextChild()
+
+	# If parallel, start all children
+	elif processType == ProcessType.PARALLEL:
+		for child in childEvents:
+			startChild(child)
+
+
+func update(delta:float) -> void:
+	super.update(delta)
+
+	# If sequential, see if the current child is done, if so go to next child
+	if processType == ProcessType.SEQUENTIAL:
+		if childIndex < 0 || childIndex >= childEvents.size():
+			return
+		if childEvents[childIndex].isDone():
+			nextChild()
+
+func nextChild() -> void:
+	childIndex += 1
+	if childIndex >= childEvents.size():
+		return
+	startChild(childEvents[childIndex])
+
+func isDone() -> bool:
+	if !super.isDone():
+		return false
+	
+	# If sequential, check if we've reached the end of the children
+	if processType == ProcessType.SEQUENTIAL:
+		return childIndex >= childEvents.size()
+
+	# If parallel, check if all children are done
+	elif processType == ProcessType.PARALLEL:
+		for child in childEvents:
+			if !child.isDone():
+				return false
+		return true
+
+	return false
+
+func end() -> void:
+	super.end()
+	for child in childEvents:
+		if child.ended || !child.started:
+			continue
+		child.end()
+
+func reset() -> void:
+	super.reset()
+	childIndex = -1
+	for child in childEvents:
+		child.reset()
+
+func startChild(child:Event) -> void:
+	# Inherits some properties from this event.
+	child.interactee = self.interactee
+	child.interactor = self.interactor
+	child.start()

scripts/Events/Flow/EventGroup.gd.uid

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+uid://bb1qpptyr1rec

scripts/Events/Flow/EventWithChildren.gd

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+class_name EventWithChildren extends "res://scripts/Events/Event.gd"
+
+var childEvents:Array[Event] = []
+
+func _init() -> void:
+	super._init()
+	_updateChildEvents()
+	_updateChildEvents()
+	self.child_entered_tree.connect(onChildEntered)
+	self.child_exiting_tree.connect(onChildExited)
+	self.child_order_changed.connect(onChildOrderChanged)
+
+func _updateChildEvents() -> void:
+	childEvents = []
+	for child in get_children():
+		if child is Event:
+			childEvents.append(child)
+
+func onChildEntered(child:Node) -> void:
+	_updateChildEvents()
+
+func onChildExited(child:Node) -> void:
+	_updateChildEvents()
+
+func onChildOrderChanged() -> void:
+	_updateChildEvents()

scripts/Events/Flow/EventWithChildren.gd.uid

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+uid://bs78jtft61ro6