extends Node
var _strength := 0.0
var _age := 0.0
var _last := Vector2.ZERO
static func kick(ship: Node, strength := 1.2) -> void:
	var camera := ship.get_node_or_null("Camera2D") as Camera2D
	if camera == null or not camera.enabled: return
	var impulse := camera.get_node_or_null("WeaponCameraImpulse")
	if impulse == null:
		impulse = Node.new()
		impulse.name = "WeaponCameraImpulse"
		impulse.set_script(load("res://scripts/game/weapon_camera_impulse.gd"))
		camera.add_child(impulse)
	impulse._strength = minf(2.0,strength)
	impulse._age = 0.0
func _process(delta: float) -> void:
	var camera := get_parent() as Camera2D
	camera.offset -= _last
	_last = Vector2.ZERO
	_age += delta
	if _age>=0.16 or bool(camera.get_parent().get("_is_destroyed")):
		queue_free()
		return
	_last = Vector2(sin(_age*97),cos(_age*83))*_strength*pow(1.0-_age/0.16,2)
	camera.offset += _last
func _exit_tree() -> void:
	if is_instance_valid(get_parent()): get_parent().offset -= _last