using Godot;
using System;

public partial class SceneTransit : CanvasLayer
{
	// Called when the node enters the scene tree for the first time.
	public override void _Ready()
	{
		Layer = -1;
		Hide();
	}

	// Called every frame. 'delta' is the elapsed time since the previous frame.
	public override void _Process(double delta)
	{
	}

	public async void Transit(string nextScene, bool needLoadResources = true, string animation = "transit", float waitSecond = 0)
	{
		GameManager.NextScene = nextScene;
		var ap = GetNode<AnimationPlayer>("AnimationPlayer");
		Layer = 9999;
		Show();
		ap.Play(animation);
		await ToSignal(ap, AnimationMixer.SignalName.AnimationFinished);
		if (waitSecond > 0) {
			await ToSignal(GetTree().CreateTimer(waitSecond), SceneTreeTimer.SignalName.Timeout);
		}
		if (needLoadResources) {
			GetTree().ChangeSceneToFile("res://scenes/loader.tscn");
		} else {
			GetTree().ChangeSceneToFile(nextScene);
		}
		ap.PlayBackwards(animation);
		await ToSignal(ap, AnimationMixer.SignalName.AnimationFinished);
		Layer = -1;
		Hide();
	}

}