private void createPlayerButton_Click(object sender, RoutedEventArgs e)
{
Log.i(this, "Create Player Button clicked");
//Verifying the static validity of a name
string playerName = playerNameTextBox.Text;
if (playerName.Length < MIN_PLAYER_NAME_LENGTH)
{
errorTextBlock.Text = "Name is too short. Please add " + (MIN_PLAYER_NAME_LENGTH - playerName.Length).ToString() + " characters.";
}
else if (playerName.Length > MAX_PLAYER_NAME_LENGTH)
{
errorTextBlock.Text = "Name is too long. Please remove " + (playerName.Length - MAX_PLAYER_NAME_LENGTH).ToString() + " characters.";
}
else
{
Services.Entity.Player player = new Services.Entity.Player()
{
Name = playerName
};
using (var db = new Persistence())
{
var players = db.Players;
if (players == null)
{
Log.e(this, "Players in Database returned null");
return;
}
//Verifying collisions
if (players.ToList().Exists(p => p.Name.Equals(playerName)))
{
errorTextBlock.Text = "Sorry, name " + playerName + " is already used.";
return;
}
//Persisting the Player
players.Add(player);
db.SaveChanges();
//After saving changes, the ID in our entity was automatically generated
//The new Player will be the selected Player
Utility.SettingsSave <int?>("selectedPlayer", player.Id);
Log.i(this, "Player " + player.Name + " added");
}
//If everything goes well, navigate back to Main Menu
Frame.Navigate(typeof(MainMenu));
}
}
void InitializeAndLoadPlayers()
{
using (var db = new Persistence())
{
//Creates the Database if it does not exist
db.Database.EnsureCreated();
var players = db.Players;
//Displays all Players
UpdatePlayers(db.Players);
//Selects last selected Player
int?selectedPlayerId = Utility.SettingsLoad <int?>("selectedPlayer");
if (selectedPlayerId != null)
{
//If we used the lambda expression to get the first player without making sure there is one, game could crash
//We fix the problem before announcing the error by erasing the saved ID
if (db.Players.Count(p => p.Id == selectedPlayerId) != 1)
{
Utility.SettingsSave <int?>("selectedPlayer", null);
Log.e(this, "Wrong number of players with a requested ID! There are in total " + db.Players.Count().ToString() + " players in DB. Deleting setting choice.");
return;
}
//Instance of the last selected Player
Services.Entity.Player player = db.Players.Where(p => p.Id == selectedPlayerId).First();
//This is not expected to happen, so we log an error and fix the problem
if (player == null)
{
Utility.SettingsSave <int?>("selectedPlayer", null);
Log.e(this, "Player selection restored, but there was no such player in database. Deleting setting choice.");
return;
}
//Selects a Player for the first time
PlayersComboBox.SelectedItem = player;
Log.i(this, "Restored player selection choice to " + player.Name);
}
else
{
//By default, the Main Menu is in state of no Player being selected
Log.i(this, "There was no saved ID for selected Player");
}
}
Log.i(this, "Players initialized and loaded");
}
/// <summary>
/// Called after a new CheckBox choice of a current Player.
/// Takes care of persisting the choice.
/// Also enables or disables the New Game button.
/// </summary>
/// <param name="player">new current Player</param>
void AfterSelectedPlayer(Services.Entity.Player player)
{
//Storing the instance of the selected Player to the Singleton controller
PlayerController.Player = player;
//If the player is not valid, overwrites the stored selected player value by null, otherwise saves him
//Enables or disables the New Game button
if (player == null)
{
Utility.SettingsSave <int?>("selectedPlayer", null);
newGameButton.Style = (Style)Resources["NewGameButtonDisabled"];
Log.i(this, "Deleted player selection choice");
}
else
{
Utility.SettingsSave <int?>("selectedPlayer", player.Id);
newGameButton.Style = (Style)Resources["NewGameButtonEnabled"];
Log.i(this, "Saved player selection choice");
}
}