using Godot;
public partial class Viewer : Node2D
{
	private Vector2 Origin => GetParent<CompoundConstructor>().Size / 2;

	public ViewerCamera ViewerCamera { get; private set; }

	// Called when the node enters the scene tree for the first time.
	public override void _Ready()
	{
		ViewerCamera = GetNode<ViewerCamera>("ViewerCamera");
		base._Ready();
	}

	public override void _Input(InputEvent @event)
	{
		if (@event is InputEventMouseMotion em)
			if (em.ButtonMask == MouseButtonMask.Middle)
				Position -= em.Relative;
		base._Input(@event);
	}

	public void BackToCenter() => Position = Origin;
}