35 lines
1.1 KiB
GDScript3
35 lines
1.1 KiB
GDScript3
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extends Node
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class_name Flock
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@export var goal_seperation: float = 25.0
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@export var goal_alignment: float = 50.0
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@export var goal_cohesion: float = 50.0
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var boids: Dictionary = {}
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## a node that the flock will try to follow.
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## target should be either a Node2D or a Node3D (or any inheritors of these two).
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@export var target: Node
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func _ready() -> void:
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self.child_entered_tree.connect(_register_boid)
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self.child_exiting_tree.connect(_unregister_boid)
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_init_register_boid()
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func _init_register_boid(node: Node = self) -> void:
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_register_boid(node)
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for child: Node in node.get_children():
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_init_register_boid(child)
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func _register_boid(maybe_boid: Node) -> void:
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if maybe_boid is not Boid2D and maybe_boid is not Boid3D: return
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maybe_boid.flock = self
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boids[maybe_boid.get_instance_id()] = maybe_boid
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print_verbose("[", self, "]", " boid ", maybe_boid, " registered")
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func _unregister_boid(maybe_boid: Node) -> void:
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if maybe_boid is not Boid2D and maybe_boid is not Boid3D: return
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boids.erase(maybe_boid.get_instance_id())
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print_verbose("[", self, "]", " boid ", maybe_boid, " unregistered")
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