82 lines
2.8 KiB
GDScript
82 lines
2.8 KiB
GDScript
@tool
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@icon("../../icons/sequence_reactive.svg")
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class_name SequenceReactiveComposite extends Composite
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## Reactive Sequence nodes will attempt to execute all of its children and report
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## `SUCCESS` in case all of the children report a `SUCCESS` status code.
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## If at least one child reports a `FAILURE` status code, this node will also
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## return `FAILURE` and restart.
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## In case a child returns `RUNNING` this node will restart.
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# Track where we last failed – so we detect a backward jump
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var previous_failure_index: int = -1
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# Separate index for running as failure and running can diverge in reactive sequence
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var previous_running_index: int = -1
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func tick(actor: Node, blackboard: Blackboard) -> int:
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var children = get_children()
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for i in range(children.size()):
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var c = children[i]
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if c != running_child:
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c.before_run(actor, blackboard)
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var response: int = c._safe_tick(actor, blackboard)
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if can_send_message(blackboard):
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BeehaveDebuggerMessages.process_tick(c.get_instance_id(), response, blackboard.get_debug_data())
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if c is ConditionLeaf:
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blackboard.set_value("last_condition", c, str(actor.get_instance_id()))
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blackboard.set_value("last_condition_status", response, str(actor.get_instance_id()))
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match response:
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SUCCESS:
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if running_child != null and running_child == c:
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# do not interrupt as this child finishes running!
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_cleanup_running(running_child, actor, blackboard)
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c.after_run(actor, blackboard)
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FAILURE:
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_interrupt_children(actor, blackboard, i, previous_failure_index)
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# remember where we failed for next tick
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previous_failure_index = c.get_index()
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if running_child != null:
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running_child.interrupt(actor, blackboard)
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_cleanup_running(running_child, actor, blackboard)
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c.after_run(actor, blackboard)
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return FAILURE
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RUNNING:
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_reset()
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if running_child != null and running_child != c:
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running_child.interrupt(actor, blackboard)
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_cleanup_running(running_child, actor, blackboard)
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running_child = c
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if c is ActionLeaf:
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blackboard.set_value("running_action", c, str(actor.get_instance_id()))
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_interrupt_children(actor, blackboard, i, previous_running_index)
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previous_running_index = i
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return RUNNING
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return SUCCESS
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func interrupt(actor: Node, blackboard: Blackboard) -> void:
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_interrupt_children(actor, blackboard, -1, previous_running_index if previous_running_index > previous_failure_index else previous_failure_index)
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if running_child != null:
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running_child.interrupt(actor, blackboard)
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_cleanup_running(running_child, actor, blackboard)
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_reset()
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super(actor, blackboard)
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func _reset() -> void:
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previous_failure_index = -1
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previous_running_index = -1
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func get_class_name() -> Array[StringName]:
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var classes := super()
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classes.push_back(&"SequenceReactiveComposite")
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return classes
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