public void AddNewWorker()
 {
     while (!mine.MineIsEmpty())
     {
         Thread.Sleep(10000);
         Console.Clear();
         listWorkers.Add(new Worker(listWorkers.Count + 1, 3, mine));
         Console.WriteLine(ToString());
     }
 }
 void WorkerWork()
 {
     while (!mine.MineIsEmpty())
     {
         Thread.Sleep(1000);
         mine.gold -= productivity;
         doneWork  += productivity;
         Console.WriteLine(ToString());
     }
 }