Unity3d пятнашки (barley brake)

BarleyBrake.cs

using UnityEngine;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

public class BarleyBrake : MonoBehaviour 
{
    /// <summary>
    /// Событие, которое произойдёт при победе
    /// </summary>
    public Observer OnWin = delegate { };


    /// <summary>
    /// Позиция первого элемента
    /// </summary>
    public Vector2 firstElementPosition;
    
    /// <summary>
    /// Элементы пятнашек
    /// </summary>
    [SerializeField]
    private List<BarleyBrakeElement> elements = new List<BarleyBrakeElement>();

    [SerializeField]
    private BarleyBrakeState currentState = BarleyBrakeState.Stationary;


    /// <summary>
    /// Добавить элемент
    /// </summary>
    /// <param name="element"></param>
    public void AddElement(BarleyBrakeElement element)
    {
        elements.Add(element);
    }

    /// <summary>
    /// Удалить элемент
    /// </summary>
    /// <param name="element"></param>
    public void RemoveElement(BarleyBrakeElement element)
    {
        elements.Remove(element);
    }

    /// <summary>
    /// Возвращает общее кол-во элементов
    /// </summary>
    /// <returns></returns>
    public int GetNumberOfElements()
    {
        return elements.Count + 1;
    }

    /// <summary>
    /// Возвращает кол-во элементов в ширину( и в высоту )
    /// </summary>
    /// <returns></returns>
    public int GetNumberOfElementsOnLine()
    {
        return (int)Mathf.Sqrt(elements.Count+1);
    }

    /// <summary>
    /// Вернуть текущее состояние пятнашек
    /// </summary>
    /// <returns></returns>
    public BarleyBrakeState GetCurrentState()
    {
        return currentState;
    }

    /// <summary>
    /// Запустить сдвиг линии
    /// </summary>
    /// <param name="directionOfMovement">Направление движения</param>
    /// <param name="positionOfMoovingElement">Позиция элемента, который начинаем двигать</param>
    public void MoveLine(Vector2 directionOfMovement, Vector2 positionOfMoovingElement)
    {
        if (directionOfMovement.x != 0)
        {
            elements.FindAll(obj => obj.GetCurrentPosition().y == positionOfMoovingElement.y).ToList().ForEach(obj => obj.StartMove(directionOfMovement));
        }
        else if (directionOfMovement.y != 0)
        {
            elements.FindAll(obj => obj.GetCurrentPosition().x == positionOfMoovingElement.x).ToList().ForEach(obj => obj.StartMove(directionOfMovement));
        }

        ChangeState(BarleyBrakeState.Mooving);
    }


    public void TranslateLine(Vector2 directionOfMovement, Vector2 positionOfMoovingElement)
    {
        if (directionOfMovement.x != 0)
        {
            elements.FindAll(obj => obj.GetCurrentPosition().y == positionOfMoovingElement.y).ToList().ForEach(obj => obj.Translation(directionOfMovement));
        }
        else if (directionOfMovement.y != 0)
        {
            elements.FindAll(obj => obj.GetCurrentPosition().x == positionOfMoovingElement.x).ToList().ForEach(obj => obj.Translation(directionOfMovement));
        }
    }

    private void Start()
    {
        List<Vector2> freePositions = new List<Vector2>();

        for (int i = 0; i < elements.Count; i++)
        {
            freePositions.Add(elements[i].GetRightPosition());
        }
        for (int i = 0; i < elements.Count; i++)
        {
            bool hasElement = false;
            hasElement = freePositions.Remove(elements[i].GetRightPosition());

            int positionIndex = Random.Range(0, freePositions.Count-1);
            elements[i].SetPositionAtOnce(freePositions[positionIndex]);

            if(hasElement) 
                freePositions.Add(elements[i].GetRightPosition());

            freePositions.RemoveAt(positionIndex);
        }
    }

    private void Update()
    {
        if (currentState == BarleyBrakeState.Mooving)
            if (!elements.Find(obj => obj.GetCurrentState() == BarleyBrakeState.Mooving))
                ChangeState(BarleyBrakeState.Stationary);
    }

    /// <summary>
    /// Проверка на победу
    /// </summary>
    private void CheckForWin()
    {
        for (int i = 0; i < elements.Count; i++)
        {
            if (elements[i].GetCurrentPosition() != elements[i].GetRightPosition())
                return;
        }

        OnWin(this, System.EventArgs.Empty);
    }

    private void ChangeState(BarleyBrakeState newState)
    {
        if (newState == BarleyBrakeState.Stationary)
            CheckForWin();

        currentState = newState;
    }
}

public enum BarleyBrakeState { Mooving, Stationary };
public delegate void Observer(object sender, System.EventArgs e);

BarleyBrakeCreator.cs

using UnityEngine;
using UnityEngine.UI;
using System.Collections;
using System.Collections.Generic;

public class BarleyBrakeCreator : MonoBehaviour 
{
    public Sprite background;
    public Transform targetCanvas;
    public List<Sprite> elements = new List<Sprite>();

    public float elementWidth = 100, elementHeight = 100;
    public float firstElementPositionX = 0, firstElementPositionY = 0;
    public float backgroundWidth = 100, backgroundHeight = 100;

    public bool elementSizeFoldout = false;
    public bool elementSizeToggle = false;
    public bool firstElementPositionFoldout = false;
    public bool backgroundFoldout = false;
    public bool backgroundSizeToggle = false;
    public bool elementsFoldout = false;

    public bool hasError = false;
    public ErrorType error;
}

public enum ErrorType { NoBackground, ZeroSizeBackground, ZeroSizeElement, WrongElementCount, NotAllElementsSetUp, NoTargetCanvas };