using Godot;

public partial class StarNode : StaticBody3D
{
	public Star StarData { get; set; }

	private Vector3 lastFrameCoordinates = Vector3.Zero;
	private Vector3 lastFrameRotation = Vector3.Zero;

	private Vector3 velocityOffset = Vector3.Zero;
	private Vector3 angularVelocityOffset = Vector3.Zero;

	public override void _Ready()
	{
		GlobalPosition = StarData.LocalCoordinates + StarData.SectorOffset;
		GlobalRotation = StarData.Rotation;
	}

	public override void _Process(double delta)
	{
		if (StarData.LocalCoordinates == lastFrameCoordinates)
		{
			velocityOffset += StarData.Velocity * delta;
		}
		else
		{
			lastFrameCoordinates = StarData.LocalCoordinates;
			velocityOffset = Vector3.Zero;
		}

		if (StarData.Rotation == lastFrameRotation)
		{
			angularVelocityOffset += StarData.AngularVelocity * delta;
		}
		else
		{
			lastFrameRotation = StarData.Rotation;
			angularVelocityOffset = Vector3.Zero;
		}

		GlobalPosition = StarData.LocalCoordinates + StarData.SectorOffset + velocityOffset;
		GlobalRotation = StarData.Rotation + angularVelocityOffset;
	}
}