private bool TryAddAllShips(IList <ShipType> ships, Predicate <CellPosition> canUseCell)
{
if (!ships.Any())
{
return(true);
}
var ship = ships.Last();
ships.RemoveAt(ships.Count - 1);
var availablePlaces = builder.EnumeratePositions()
.SelectMany(position => new[]
{
new { Position = position, Vertical = true },
new { Position = position, Vertical = false }
})
.Where(x => builder.CanBeAddedSafely(ship, x.Position, x.Vertical, canUseCell))
.Shuffle();
foreach (var place in availablePlaces)
{
builder.TryAddFullShip(ship, place.Position, place.Vertical);
if (TryAddAllShips(ships, canUseCell))
{
return(true);
}
builder.TryRemoveFullShip(ship, place.Position, place.Vertical);
}
ships.Add(ship);
return(false);
}
public void NotModifyBuilder_BeforeGenerating()
{
var oldBuilder = FromLines(Rules, SampleField);
foreach (var position in builder.EnumeratePositions())
{
builder[position].Should().Be(oldBuilder[position]);
}
}
private void FillSelfFieldUsingBuilder()
{
foreach (var position in builder.EnumeratePositions())
{
selfFieldCells.GetValue(position).Fill = builder[position]
? SelfFieldUndamagedShipCellColor
: SelfFieldUndamagedEmptyCellColor;
}
}