extends Node2D

const desired_ratio = 1280.0 / 800

func _ready():
	get_tree().get_root().connect("size_changed",self,"resize")

func resize():
	var current_ratio =  OS.window_size.x / OS.window_size.y
	if current_ratio < desired_ratio:  # when width is smaller
		current_ratio -= (desired_ratio - 1) / desired_ratio * current_ratio
	else:
		current_ratio = desired_ratio / current_ratio

	$Camera2D.zoom = Vector2(current_ratio, current_ratio)