private void InitActualMap()
    {
        List <DVector> filledCells = InitialGrid.GetFilledCells();

        foreach (var pos in filledCells)
        {
            ActualGrid.SetCell(pos, InitialGrid.GetCell(pos));
        }
        foreach (var pos in filledCells)
        {
            GameLogic.RevealCellsAround(pos, CurrentStepVisionRadius);
            GameLogic.ExpandAreaAround(pos);
        }
    }