limboai/doc_classes/BTPlayer.xml

<?xml version="1.0" encoding="UTF-8" ?>
<class name="BTPlayer" inherits="Node" version="4.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="../../../doc/class.xsd">
	<brief_description>
		Player of [BehaviorTree] resources.
	</brief_description>
	<description>
		BTPlayer is used for instantiation and playback of [BehaviorTree] resources at run time.
	</description>
	<tutorials>
	</tutorials>
	<methods>
		<method name="get_last_status" qualifiers="const">
			<return type="int" />
			<description>
				Returns last execution status. See [enum BTTask.TaskStatus].
			</description>
		</method>
		<method name="restart">
			<return type="void" />
			<description>
				Cancel execution of the tree and start anew. This method does not reset [Blackboard].
			</description>
		</method>
		<method name="set_blackboard">
			<return type="void" />
			<param index="0" name="p_blackboard" type="Blackboard" />
			<description>
				Assign a [Blackboard] instance.
			</description>
		</method>
		<method name="update">
			<return type="void" />
			<param index="0" name="p_delta" type="float" />
			<description>
				Updates the tree by executing the root task. Call this method when [member update_mode] is set to [constant MANUAL]. When [member update_mode] is not set to [constant MANUAL], the tree is updated automatically. See [enum UpdateMode].
			</description>
		</method>
	</methods>
	<members>
		<member name="active" type="bool" setter="set_active" getter="get_active" default="true">
			If [code]true[/code], tree is active and will be processed.
		</member>
		<member name="behavior_tree" type="BehaviorTree" setter="set_behavior_tree" getter="get_behavior_tree">
			[BehaviorTree] resource to instantiate and process at run time.
		</member>
		<member name="blackboard" type="Blackboard" setter="" getter="get_blackboard">
			[Blackboard] instance that contains data shared by the tasks in [BehaviorTree].
		</member>
		<member name="prefetch_nodepath_vars" type="bool" setter="set_prefetch_nodepath_vars" getter="get_prefetch_nodepath_vars" default="true">
			If [code]true[/code], any NodePath variables in the [Blackboard] are replaced with references during tree instantiation. References are retrieved by calling [method Node.get_node] of BTPlayer.
		</member>
		<member name="update_mode" type="int" setter="set_update_mode" getter="get_update_mode" enum="BTPlayer.UpdateMode" default="1">
			Defines when BehaviorTree is executed. See [enum UpdateMode].
		</member>
	</members>
	<signals>
		<signal name="behavior_tree_finished">
			<param index="0" name="p_status" type="int" />
			<description>
				Notifies when behavior tree finishes executing and returns [code]SUCCESS[/code] or [code]FAILURE[/code].
				Argument [code]p_status[/code] holds the status returned by the behavior tree.
			</description>
		</signal>
	</signals>
	<constants>
		<constant name="IDLE" value="0" enum="UpdateMode">
			Process tree during the idle process.
		</constant>
		<constant name="PHYSICS" value="1" enum="UpdateMode">
			Process tree during the physics process.
		</constant>
		<constant name="MANUAL" value="2" enum="UpdateMode">
			Tree is processed manually by calling [method update].
		</constant>
	</constants>
</class>