Cleaned and improved some event stuff

scripts/Event/Flow/EventWithChildren.gd

@@ -1,7 +1,7 @@
 class_name EventWithChildren extends "res://scripts/Event/Event.gd"
 
 var childEvents:Array[Event] = []
-var extraEvents:Array[Event] = []
+var addedEvents:Array[Event] = []
 
 func start():
 	super.start()
@@ -22,16 +22,29 @@ func _updateChildEvents() -> void:
 			childEvents.append(child)
 
 func _cleanupExtraEvents():
-	for event in extraEvents:
+	for event in addedEvents:
 		remove_child(event)
 		event.queue_free()
-	extraEvents = []
+	addedEvents = []
 	_updateChildEvents()
 
-func addExtraEvent(child:Event, position:int) -> void:
+func addChildEvent(child:Event, position:int = -1) -> void:
 	assert(started == false || ended == true)
-	# Add the child to the extra events list
-	extraEvents.append(child)
+	if position < 0:
+		position = childEvents.size() + position + 1
+		
 	add_child(child)
 	move_child(child, position)
-	_updateChildEvents()
+	addedEvents.append(child)
+	_updateChildEvents()
+
+func startChild(child:Event) -> void:
+	assert(child.get_parent() == self)
+
+	# Inherits some properties from this event.
+	child.interactee = self.interactee
+	child.interactor = self.interactor
+	child.start()
+
+	if child.isEndingEvent():
+		self.end()