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45 lines
840 B
GDScript3
45 lines
840 B
GDScript3
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@icon("res://behaviours/target_picker.svg")
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extends Node
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class_name TargetPicker
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## Pick a random target at random from [field Tracker.tracked], then emit it via [signal target_changed].
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signal target_changed(new: Node2D, old: Node2D)
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@export var tracker: Tracker
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var target: Node2D:
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get:
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return target
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set(value):
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if target != value:
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var old = target
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target = value
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target_changed.emit(old, target)
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func set_target(body: Node2D) -> void:
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target = body
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func set_target_if_null(body: Node2D) -> void:
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if target == null:
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target = body
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func clear_target() -> void:
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target = null
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func clear_if_target(body: Node2D) -> void:
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if target == body:
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clear_target()
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func sample_target() -> void:
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target = Random.sample(tracker.tracking)
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func sample_target_if_null() -> void:
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if target == null:
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sample_target()
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