private int IndexOfPlatformOnNextLayer(Enemy enemy)
    {
        var curPlatform = enemy.platform;

        var curPlatforms  = GetPlatformsFromLayer(enemy.IndexOfLayer);
        var nextPlatforms = GetPlatformsFromLayer(enemy.IndexOfLayer - 1);

        enemyMover.DisconnectEnemy(enemy);

        var curIndex = curPlatforms.IndexOf(curPlatform);

        var curLength  = curPlatforms.Length;
        var nextLength = nextPlatforms.Length;

        var nextIndex = (int)(curIndex * ((double)nextLength / curLength));

        return(nextIndex);
    }