/// <summary>
/// Updates the list of ships destroyed and still in service.
/// Returns the list of ships class names which have been destroyed.
/// </summary>
/// <returns></returns>
private string[] UpdateDestroyedShips()
{
string[] destroyedShipNames = {};
for (int index = 0; index < SpaceShipsInService.Length; index++)
{
SpaceShip spaceShip = SpaceShipsInService[index];
if (spaceShip.IsDestroyed())
{
RemoveDestroyedShipFromService(spaceShip, index);
destroyedShipNames = ArrayUtils.AddStringToArray(destroyedShipNames,
spaceShip.ShipClassName);
}
}
return destroyedShipNames;
}