public BattleViewModel LaunchAttack(string input)
{
BattleViewModel vm = InputValidator.Validate(input);
while (!vm.GameOver)
{
if (!vm.InputIsValid)
{
return(vm);
}
return(GetAttackResult(vm));
}
while (!(input.ToUpper() == "Y") || !(input.ToUpper() == "N"))
{
if (input.ToUpper() == "Y")
{
NewGame();
return(vm);
}
else
{
PlayAgain = false;
vm.Messages.Add(GameResources.MESSAGE_USER_EXIT);
return(vm);
}
}
vm.Messages.Add(GameResources.MESSAGE_PLAY_AGAIN);
return(vm);
}
public BattleViewModel Validate(string input)
{
vm = new BattleViewModel();
vm.InputIsValid = true;
if (string.IsNullOrWhiteSpace(input) || input.Length != 2)
{
vm.Messages.Add(GameResources.MESSAGE_INPUT_ERROR_LENGTH);
vm.InputIsValid = false;
return(vm);
}
if (!Char.IsLetter(input[0]) || !Char.IsDigit(input[1]))
{
vm.Messages.Add(GameResources.MESSAGE_INPUT_ERROR_CHAR);
vm.InputIsValid = false;
return(vm);
}
Location attLoc = LocationTranslatior.TranslateInputToGameLocation(input);
if (attLoc.xPos > GameOptions.BoardSize - 1 || attLoc.yPos > GameOptions.BoardSize - 1)
{
vm.Messages.Add(String.Format(GameResources.MESSAGE_INPUT_ERROR_OUT_OF_RANGE, GameOptions.BoardSize));
vm.Messages.Add(GameResources.MESSAGE_ATTACK);
vm.InputIsValid = false;
}
else
{
if (LocationHasBeenAttacked(attLoc.xPos, attLoc.yPos))
{
vm.Messages.Add(GameResources.MESSAGE_ALREADY_ATTACKED);
vm.AttackedLocations = GameRepository.AttackedLocations;
vm.ShipsSunk = GameRepository.Ships.Where(s => s.Hits == s.Size).ToList().Count;
vm.InputIsValid = false;
}
else
{
GameRepository.AttackedLocations.Add(attLoc);
vm.AttackLocation = attLoc;
vm.AttackedLocations = GameRepository.AttackedLocations;
vm.ShipsSunk = GameRepository.Ships.Where(s => s.Hits == s.Size).ToList().Count;
}
}
return(vm);
}
private BattleViewModel GetAttackResult(BattleViewModel vm)
{
Ship damagedShip = GameRepository.GetShipByLocation(vm.AttackLocation.xPos, vm.AttackLocation.yPos);
if (damagedShip != null)
{
damagedShip.Hits++;
if (damagedShip.Hits == damagedShip.Size)
{
if (CheckGameOver())
{
vm.GameOver = true;
vm.Messages.Add(GameResources.MESSAGE_GAME_OVER_PLAYER_WIN);
vm.Messages.Add(GameResources.MESSAGE_PLAY_AGAIN);
return(vm);
}
vm.Messages.Add(GameResources.MESSAGE_SUNK_SHIP);
vm.ShipsSunk++;
return(vm);
}
else
{
vm.Messages.Add(GameResources.MESSAGE_HIT_SHIP);
return(vm);
}
}
if (CheckGameOver())
{
vm.GameOver = true;
vm.Messages.Add(GameResources.MESSAGE_GAME_OVER_COMPUTER_WIN);
vm.Messages.Add(GameResources.MESSAGE_PLAY_AGAIN);
return(vm);
}
vm.Messages.Add(GameResources.MESSAGE_MISSED_SHIP);
return(vm);
}