//CREAT3D.ECS.DataModel.EventSystems.Topics//
===== TransformChildrenChangedTopic =====

^Type | [[Topic]] |
^Payload | [[ValueMessage]]<[[Entity|IEntity]], bool> |
^Broadcaster | [[ITransformComponent]] |

This topic is broadcast from the [[ITransformComponent|TransformComponent]] of an [[Entity]] whenever the transform loses or gains a child [[Entity]]. Child loss can either happen by manual removal or child destruction. The payload contains two values; the child [[Entity]] that was modified and a boolean value that signals whether the child [[Entity]] was added (true) or removed (false). Child addition and removal is meant to be achieved by modifying the child's Parent value, rather than manipulating the parent's Children collection.