/// <summary>
/// Checks the results of the attack and switches to
/// Ending the Game if the result was game over.
/// </summary>
/// <param name="result">the result of the last
/// attack</param>
/// <remarks>Gets the AI to attack if the result switched
/// to the AI player.</remarks>
private static void CheckAttackResult(AttackResult result)
{
var switchExpr = result.Value;
switch (switchExpr)
{
case ResultOfAttack.Miss:
{
if (_theGame.Player == ComputerPlayer)
{
AIAttack();
}
break;
}
case ResultOfAttack.GameOver:
{
SwitchState(GameState.EndingGame);
break;
}
}
}
/// <summary>
/// Shoot will swap between players and check if a player has been killed.
/// It also allows the current player to hit on the enemygrid.
/// </summary>
/// <param name="row">the row fired upon</param>
/// <param name="col">the column fired upon</param>
/// <returns>The result of the attack</returns>
public AttackResult Shoot(int row, int col)
{
AttackResult newAttack;
int otherPlayer = (_playerIndex + 1) % 2;
newAttack = Player.Shoot(row, col);
// Will exit the game when all players ships are destroyed
if (_players[otherPlayer].IsDestroyed)
{
newAttack = new AttackResult(ResultOfAttack.GameOver, newAttack.Ship, newAttack.Text, row, col);
}
AttackCompleted?.Invoke(this, newAttack);
// change player if the last hit was a miss
if (newAttack.Value == ResultOfAttack.Miss)
{
_playerIndex = otherPlayer;
}
return(newAttack);
}
/// <summary>
/// ProcessShot is able to process each shot that is made and call the right methods belonging
/// to that shot. For example, if its a miss = do nothing, if it's a hit = process that hit location
/// </summary>
/// <param name="row">the row that was shot at</param>
/// <param name="col">the column that was shot at</param>
/// <param name="result">the result from that hit</param>
protected override void ProcessShot(int row, int col, AttackResult result)
{
var switchExpr = result.Value;
switch (switchExpr)
{
case ResultOfAttack.Miss:
{
_CurrentTarget = null;
break;
}
case ResultOfAttack.Hit:
{
ProcessHit(row, col);
break;
}
case ResultOfAttack.Destroyed:
{
ProcessDestroy(row, col, result.Ship);
break;
}
case ResultOfAttack.ShotAlready:
{
throw new ApplicationException("Error in AI");
break;
}
}
if (_Targets.Count == 0)
{
_CurrentState = AIStates.Searching;
}
}
/// <summary> /// The last shot had the following result. Child classes can use this /// to prepare for the next shot. /// </summary> /// <param name="result">The result of the shot</param> /// <param name="row">the row shot</param> /// <param name="col">the column shot</param> protected abstract void ProcessShot(int row, int col, AttackResult result);
/// <summary>
/// Listens for attacks to be completed.
/// </summary>
/// <param name="sender">the game</param>
/// <param name="result">the result of the attack</param>
/// <remarks>
/// Displays a message, plays sound and redraws the screen
/// </remarks>
private static void AttackCompleted(object sender, AttackResult result)
{
bool isHuman;
isHuman = _theGame.Player == HumanPlayer;
if (isHuman)
{
UtilityFunctions.Message = "You " + result.ToString();
}
else
{
UtilityFunctions.Message = "The AI " + result.ToString();
}
var switchExpr = result.Value;
switch (switchExpr)
{
case ResultOfAttack.Destroyed:
{
PlayHitSequence(result.Row, result.Column, isHuman);
Audio.PlaySoundEffect(GameResources.GameSound("Sink"));
break;
}
case ResultOfAttack.GameOver:
{
PlayHitSequence(result.Row, result.Column, isHuman);
Audio.PlaySoundEffect(GameResources.GameSound("Sink"));
while (Audio.SoundEffectPlaying(GameResources.GameSound("Sink")))
{
SwinGame.Delay(10);
SwinGame.RefreshScreen();
}
if (HumanPlayer.IsDestroyed)
{
Audio.PlaySoundEffect(GameResources.GameSound("Lose"));
}
else
{
Audio.PlaySoundEffect(GameResources.GameSound("Winner"));
}
break;
}
case ResultOfAttack.Hit:
{
PlayHitSequence(result.Row, result.Column, isHuman);
break;
}
case ResultOfAttack.Miss:
{
PlayMissSequence(result.Row, result.Column, isHuman);
break;
}
case ResultOfAttack.ShotAlready:
{
Audio.PlaySoundEffect(GameResources.GameSound("Error"));
break;
}
}
}