Base class for BT decorators. Base class for all [BehaviorTree] decorators. You can create your own decorators by extending the BTDecorator class. A decorator is a task within a [BehaviorTree] that alters the behavior of its child task. Decorators can have only one child task. Decorators can be used to add conditions, limits, or other constraints to the execution of a task. Examples of [BehaviorTree] decorators include [BTInvert], [BTRepeat], and [BTCooldown]. The use of [BehaviorTree] decorators can simplify the design and implementation of complex behaviors by adding additional logic to existing tasks.