public ShipPlacements PlaceShip(ShipRequest request)
{
if (_currentShipIndex > 4)
{
throw new Exception("You can not add another ship, 5 is the limit!");
}
if (!IsValidCoordinate(request.Coordinate))
{
return(ShipPlacements.NotEnoughSpace);
}
Battleships newShip = ShipCreation.CreateShip(request.ShipType);
switch (request.Direction)
{
case ShipDirections.Down:
return(PlaceShipDown(request.Coordinate, newShip));
case ShipDirections.Up:
return(PlaceShipUp(request.Coordinate, newShip));
case ShipDirections.Left:
return(PlaceShipLeft(request.Coordinate, newShip));
default:
return(PlaceShipRight(request.Coordinate, newShip));
}
}
private ShipPlacements PlaceShipDown(Coordinate coordinate, Battleships newShip)
{
// y coordinate gets bigger
int positionIndex = 0;
int maxX = coordinate.XCoordinate + newShip.PanelPositions.Length;
for (int i = coordinate.XCoordinate; i < maxX; i++)
{
var currentCoordinate = new Coordinate(i, coordinate.YCoordinate);
if (!IsValidCoordinate(currentCoordinate))
{
return(Enums.ShipPlacements.NotEnoughSpace);
}
if (OverlapsAnotherShip(currentCoordinate))
{
return(Enums.ShipPlacements.Overlap);
}
newShip.PanelPositions[positionIndex] = currentCoordinate;
positionIndex++;
}
AddShipToBoard(newShip);
return(Enums.ShipPlacements.Ok);
}
private ShipPlacements PlaceShipLeft(Coordinate coordinate, Battleships newShip)
{
// y coordinate gets smaller
int positionIndex = 0;
int minY = coordinate.YCoordinate - newShip.PanelPositions.Length;
for (int i = coordinate.YCoordinate; i > minY; i--)
{
var currentCoordinate = new Coordinate(coordinate.XCoordinate, i);
if (!IsValidCoordinate(currentCoordinate))
{
return(Enums.ShipPlacements.NotEnoughSpace);
}
if (OverlapsAnotherShip(currentCoordinate))
{
return(Enums.ShipPlacements.Overlap);
}
newShip.PanelPositions[positionIndex] = currentCoordinate;
positionIndex++;
}
AddShipToBoard(newShip);
return(Enums.ShipPlacements.Ok);
}
private void AddShipToBoard(Battleships newShip)
{
Ships[_currentShipIndex] = newShip;
_currentShipIndex++;
}