stealthy/addons/beehave/nodes/composites/selector_random.gd

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2023-10-06 08:54:01 +00:00
## This node will attempt to execute all of its children just like a
## [code]SelectorStar[/code] would, with the exception that the children
## will be executed in a random order.
@tool
@icon("../../icons/selector_random.svg")
class_name SelectorRandomComposite extends RandomizedComposite
## A shuffled list of the children that will be executed in reverse order.
var _children_bag: Array[Node] = []
var c: Node
func _ready() -> void:
super()
if random_seed == 0:
randomize()
func tick(actor: Node, blackboard: Blackboard) -> int:
if _children_bag.is_empty():
_reset()
# We need to traverse the array in reverse since we will be manipulating it.
for i in _get_reversed_indexes():
c = _children_bag[i]
if c != running_child:
c.before_run(actor, blackboard)
var response = c.tick(actor, blackboard)
if can_send_message(blackboard):
BeehaveDebuggerMessages.process_tick(c.get_instance_id(), response)
if c is ConditionLeaf:
blackboard.set_value("last_condition", c, str(actor.get_instance_id()))
blackboard.set_value("last_condition_status", response, str(actor.get_instance_id()))
match response:
SUCCESS:
_children_bag.erase(c)
c.after_run(actor, blackboard)
return SUCCESS
FAILURE:
_children_bag.erase(c)
c.after_run(actor, blackboard)
RUNNING:
running_child = c
if c is ActionLeaf:
blackboard.set_value("running_action", c, str(actor.get_instance_id()))
return RUNNING
return FAILURE
func after_run(actor: Node, blackboard: Blackboard) -> void:
_reset()
super(actor, blackboard)
func interrupt(actor: Node, blackboard: Blackboard) -> void:
_reset()
super(actor, blackboard)
func _get_reversed_indexes() -> Array[int]:
var reversed: Array[int]
reversed.assign(range(_children_bag.size()))
reversed.reverse()
return reversed
func _reset() -> void:
var new_order = get_shuffled_children()
_children_bag = new_order.duplicate()
_children_bag.reverse() # It needs to run the children in reverse order.
func get_class_name() -> Array[StringName]:
var classes := super()
classes.push_back(&"SelectorRandomComposite")
return classes