:github_url: hide .. DO NOT EDIT THIS FILE!!! .. Generated automatically from Godot engine sources. .. Generator: https://github.com/godotengine/godot/tree/4.3/doc/tools/make_rst.py. .. XML source: https://github.com/godotengine/godot/tree/4.3/modules/limboai/doc_classes/BTSelector.xml. .. _class_BTSelector: BTSelector ========== **Inherits:** :ref:`BTComposite` **<** :ref:`BTTask` **<** :ref:`BT` BT composite that sequentially executes tasks until first ``SUCCESS``. .. rst-class:: classref-introduction-group Description ----------- BTSelector executes its child tasks sequentially, from first to last, until any child returns ``SUCCESS``. If a child task results in ``FAILURE``, BTSelector will immediately execute the next child task until one of them returns ``SUCCESS`` or all of them result in ``FAILURE``. BTSelector and :ref:`BTSequence` are two of the most common building blocks of behavior trees. Essentially, while :ref:`BTSequence` is similar to a boolean AND operation, BTSelector is similar to a boolean OR operation. Selectors enable the behavior tree to respond to changes in the environment and trigger transitions between various fallback behaviors. Returns ``RUNNING`` if a child task results in ``RUNNING``. BTSelector will remember the last child task that returned ``RUNNING``, ensuring it resumes from that point in the next execution tick. Returns ``SUCCESS`` if a child task results in ``SUCCESS``. Returns ``FAILURE`` if all child tasks result in ``FAILURE``. .. |virtual| replace:: :abbr:`virtual (This method should typically be overridden by the user to have any effect.)` .. |const| replace:: :abbr:`const (This method has no side effects. It doesn't modify any of the instance's member variables.)` .. |vararg| replace:: :abbr:`vararg (This method accepts any number of arguments after the ones described here.)` .. |constructor| replace:: :abbr:`constructor (This method is used to construct a type.)` .. |static| replace:: :abbr:`static (This method doesn't need an instance to be called, so it can be called directly using the class name.)` .. |operator| replace:: :abbr:`operator (This method describes a valid operator to use with this type as left-hand operand.)` .. |bitfield| replace:: :abbr:`BitField (This value is an integer composed as a bitmask of the following flags.)` .. |void| replace:: :abbr:`void (No return value.)`