ZoomEvent.gd

extends TriggerGameEvent

export var zoom_to_fit : bool = false;
export var scale_to_apply : float = 1.0;
export var tween_duration : float = 0.5;

onready var tween = $Tween;
var former_scale = null

func _ready():
	if zoom_to_fit:
		call_deferred("do_zoom_to_fit");

func do_zoom_to_fit():
		var scale_x = get_viewport_rect().size.x / get_trigger_area_rect().size.x;
		var scale_y = get_viewport_rect().size.y / get_trigger_area_rect().size.y;
		scale_to_apply = max(scale_x, scale_y);

func on_body_entered(_body):
	if former_scale == null:
		former_scale = Globals.camera.scale;

	tween.stop_all();
	tween.interpolate_method(
		Globals.camera, 
		"adjust_scale", 
		Globals.camera.scale, 
		Vector2.ONE * scale_to_apply, 
		tween_duration);
	tween.start();
	pass;

func on_body_exited(_body):

	tween.stop_all();
	tween.interpolate_method(
		Globals.camera, 
		"adjust_scale", 
		Globals.camera.scale, 
		former_scale, 
		tween_duration);
	tween.start();

	pass;