extends Camera2D

var shake_tween: Tween

func shake(duration: float, intensity: float) -> void:
	if shake_tween and shake_tween.is_valid():
		shake_tween.kill()

	offset = Vector2.ZERO
	shake_tween = create_tween()
	shake_tween.set_pause_mode(Tween.TWEEN_PAUSE_PROCESS)

	var steps = 20
	var step_duration = duration / steps

	for i in steps:
		var t = float(i) / float(steps)
		var decay = 1.0 - t
		var si = intensity * decay
		var target = Vector2(
			randf_range(-si, si),
			randf_range(-si, si)
		)
		shake_tween.tween_property(self, "offset", target, step_duration)

	shake_tween.tween_property(self, "offset", Vector2.ZERO, 0.05)