using Godot;
using System;

public partial class MainScene : Node2D
{
	public Node CurrentScene { get; set; }
	public VirtualChemistryDemo Demo { get; set; }

	public override void _Ready()
	{
		GlobalScene.MainScene = this;
		Demo = GetNode<VirtualChemistryDemo>("Demo");
		CurrentScene = Demo;
	}

	public void SwitchToConstructor()
	{
		if (CurrentScene == GlobalScene.CompoundConstructor)
			return;
		if (CurrentScene != Demo)
			throw new Exception("?");
		if (GlobalScene.CompoundConstructor == null)
			GlobalScene.CompoundConstructor = ResourceLoader
				.Load<PackedScene>("res://Scenes/CompoundConstructor.tscn")
				.Instantiate<CompoundConstructor>();
		RemoveChild(Demo);
		AddChild(GlobalScene.CompoundConstructor);
		CurrentScene = GlobalScene.CompoundConstructor;
	}

	public void SwitchToDemo()
	{
		if (CurrentScene == Demo)
			return;
		if (CurrentScene != GlobalScene.CompoundConstructor)
			throw new Exception("?");
		RemoveChild(CurrentScene);
		AddChild(Demo);
		CurrentScene = Demo;
	}

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