extends SceneTree
## Does the greengrocer actually come to REST, or does it jitter forever? A pyramid of
## spheres that never quite stops is fruit slowly walking off the display all shift.
func _initialize() -> void:
	var main: Node = (load("res://main.tscn") as PackedScene).instantiate()
	get_root().add_child(main)
	await process_frame
	main._load_level("grocer")
	for t in 10:
		for i in 60:
			await physics_frame
		var total := 0.0
		var worst := 0.0
		var awake := 0
		for n in get_nodes_in_group("smashable"):
			var b := n as RigidBody3D
			if b == null or b.freeze:
				continue
			if not b.sleeping:
				awake += 1
			var v := b.linear_velocity.length()
			total += v
			worst = maxf(worst, v)
		print("t=%2ds  total %6.3f m/s   worst body %5.3f   awake %d" % [
			t + 1, total, worst, awake])
	quit()