public bool GetBlock(Ray ray, out Vector3 blockCoords, out Block block)
{
	blockCoords = Vector3.Zero;
	block = new Block ();

	BoundingBox aabb = new BoundingBox ();

	Vector3 min = new Vector3(Position.X, Position.Y, Position.Z) * new Vector3(32, 32, 32);
	Vector3 max = min + new Vector3 (32, 32, 32);

	aabb.FromMinMax (min, max);

	if (!aabb.Collides(ray))
		return false;

	// TODO: return correct block and block coords from the octree

	Console.WriteLine ("Collision! {0}\nMin:{1}\nMax:{2}", Position, min, max);

public void FromMinMax(Vector3 min, Vector3 max)
{
	Min = min;
	Max = max;
	Size = (Min - Max) * 0.5f;
	Position = Size + Min;
}

public void FromMinMax(Vector3 min, Vector3 max)
{
	Min = min;
	Max = max;
	Size = (Max - Min) * 0.5f;
	Position = Size + Min;
}