@tool extends EditorPlugin func _enter_tree(): if Engine.is_editor_hint(): Engine.set_meta("Rapier2DEditorPlugin", self) var update_tool: Node = load("res://addons/godot-rapier2d/generated/updater/download_update_panel.tscn").instantiate() Engine.get_main_loop().root.call_deferred("add_child", update_tool) func _exit_tree(): if Engine.has_meta("Rapier2DEditorPlugin"): Engine.remove_meta("Rapier2DEditorPlugin")