// Use this for initialization
void Start()
{
sub = new Subject();
TopSquare tSq0 = new TopSquare(squareObj0);
TopSquare tSq1 = new TopSquare(squareObj1);
MiddleSquare mSq0 = new MiddleSquare(squareObj2);
MiddleSquare mSq1 = new MiddleSquare(squareObj3);
BottomSquare bSq0 = new BottomSquare(squareObj4);
BottomSquare bSq1 = new BottomSquare(squareObj5);
sub.AddObservers(tSq0);
sub.AddObservers(tSq1);
sub.AddObservers(mSq0);
sub.AddObservers(mSq1);
sub.AddObservers(bSq0);
sub.AddObservers(bSq1);
}