/// <summary>
/// adds a ship to given coordinates if possible
/// </summary>
/// <param name="map">player map</param>
/// <param name="ship">ship to be placed</param>
/// <param name="posX">position x where ship maybe placed</param>
/// <param name="posY">position y where ship maybe placed</param>
/// <returns>true, if ship could be placed</returns>
public static Boolean AddShip(Map map, Ship ship, int posX, int posY)
{
int sizeX;
int sizeY;
if (ship.horizontal)
{
sizeX = ship.size;
sizeY = 1;
}
else
{
sizeX = 1;
sizeY = ship.size;
}
for (int y = posY; y < (posY + sizeY); y++)
for (int x = posX; x < (posX + sizeX); x++)
if (x >= map.Dimension || y >= map.Dimension || map.getField(x, y).ship)
return false;
for (int y = posY; y < (posY + sizeY); y++)
for (int x = posX; x < (posX + sizeX); x++)
map.getField(x, y).ship = true;
return true;
}
/// <summary>
/// generates ships of size 5, 4, 3, and 2 and places them on map
/// </summary>
/// <param name="map">map on which ships are placed on</param>
/// <param name="numberOfShipFields">max number of ship fields</param>
/// <returns>map with ships</returns>
public static Map GenerateShipsOnMap(Map map, int numberOfShipFields)
{
int numberOfFiver = (int)Math.Floor((double)(((5.0 / 24) * numberOfShipFields) / 5));
int numberOfFoursomes = (int)Math.Floor((double)(((8.0 / 24) * numberOfShipFields) / 4));
int numberOfThreesomes = (int)Math.Floor((double)(((9.0 / 24) * numberOfShipFields) / 3));
int numberOfTwoSomes = (int)Math.Floor((double)(((4.0 / 24) * numberOfShipFields) / 2));
Ship[] ships = new Ship[numberOfFiver + numberOfFoursomes + numberOfThreesomes + numberOfTwoSomes];
Random random = new Random();
int counter = 0;
for (int i = 0; i < numberOfFiver; i++)
ships[counter++] = new Ship(5, (random.NextDouble() > 0.5));
for (int i = 0; i < numberOfFoursomes; i++)
ships[counter++] = new Ship(4, (random.NextDouble() > 0.5));
for (int i = 0; i < numberOfThreesomes; i++)
ships[counter++] = new Ship(3, (random.NextDouble() > 0.5));
for (int i = 0; i < numberOfTwoSomes; i++)
ships[counter++] = new Ship(2, (random.NextDouble() > 0.5));
if (map.Dimension * map.Dimension < numberOfShipFields)
return null;
foreach (Ship ship in ships)
{
Boolean found = false;
int randomX;
int randomY;
while (!found)
{
randomX = random.Next(map.Dimension);
randomY = random.Next(map.Dimension);
found = AddShip(map, ship, randomX, randomY);
}
}
return map;
}
