void TryAddPenguin(PenguinController controller)
 {
     if (spawnedPenguins.Contains(controller))
     {
         return;
     }
     spawnedPenguins.Add(controller);
 }
        void OnPenguinEntered(PenguinController penguin)
        {
            if (penguin.IsAffectingCracks == false)
            {
                return;
            }

            ++currentPenguingSteps;
            var maxSteps        = penguin.MaxStepsOnCrack;
            var stepsDifference = Mathf.Max(0, maxSteps - currentPenguingSteps);

            var value    = 1f - (float)stepsDifference / maxSteps;
            var newScale = Vector3.Lerp(transform.localScale, minCrackScale, value);

            transform.DOScale(newScale, 0.3f);

            if (stepsDifference == 0)
            {
                Invoke("DestroyCrack", 1f);
            }
        }