/// <summary>
/// Helper method returns a game object from the T-SQL database from the Games table
/// </summary>
private GamesDB QueryGame(int GameID)
{
using (SqlConnection conn = new SqlConnection(BoggleDB))
{
conn.Open();
using (SqlTransaction trans = conn.BeginTransaction())
{
using (SqlCommand command = new SqlCommand("select * from Games where GameID=@GameID", conn, trans))
{
command.Parameters.AddWithValue("@GameID", GameID);
//initialize the reader to read the row selected
using (SqlDataReader reader = command.ExecuteReader())
{
if (!reader.HasRows)
{
return(null);
}
reader.Read();
GamesDB game = new GamesDB();
game.GameID = GameID;
game.Player1 = (string)reader["Player1"];
//if game is pending don't set other values
if (!(reader["Player2"] is System.DBNull))
{
game.Player2 = (string)reader["Player2"];
game.Board = (string)reader["Board"];
game.TimeLimit = (int)reader["TimeLimit"];
game.StartTime = (DateTime)reader["StartTime"];
}
return(game);
}
}
}
}
}
/// <summary>
/// Plays a word.
/// </summary>
public UserInfo PlayWord(string GameID, UserInfo user)
{
int GameInt;
int.TryParse(GameID, out GameInt);
//trim word
if (user.Word != null)
{
user.Word = user.Word.Trim();
}
GamesDB game = QueryGame(GameInt);
// forbidden when:
// usertoken is null
// word is null or ""
// game doesn't exist
// usertoken not associated with the game
if (game == null || user.Word == null || user.Word.Length == 0 || !(game.Player1 == user.UserToken || game.Player2 == user.UserToken))
{
UserInfo ret = new UserInfo();
ret.HttpStatus = "403 Forbidden";
return(ret);
}
// Conflict
// game state isn't active
if ((game.Player2 == null) || game.StartTime.AddSeconds(game.TimeLimit) < DateTime.Now)
{
UserInfo ret = new UserInfo();
ret.HttpStatus = "409 Conflict";
return(ret);
}
//gets all words played so far by this user
//returns 0 if word has already been played
LinkedList <WordsDB> played = QueryWord(GameInt, user.UserToken);
foreach (WordsDB word in played)
{
if (word.Word == user.Word)
{
UserInfo ret = new UserInfo();
ret.HttpStatus = "200 OK";
ret.Score = "0";
return(ret);
}
}
//Calculates the words score
int score = CheckScore(user.Word, new BoggleBoard(game.Board));
using (SqlConnection conn = new SqlConnection(BoggleDB))
{
// Connections must be opened
conn.Open();
UserInfo ret = new UserInfo();
using (SqlTransaction trans = conn.BeginTransaction())
{
using (SqlCommand command =
new SqlCommand("insert into Words (GameID, Player, Score, Word) values(@GameID, @Player, @Score, @Word)",
conn,
trans))
{
command.Parameters.AddWithValue("@GameID", GameInt);
command.Parameters.AddWithValue("@Player", user.UserToken);
command.Parameters.AddWithValue("@Score", score);
command.Parameters.AddWithValue("@Word", user.Word);
//attempt query twice
if (command.ExecuteNonQuery() == 1)
{
}
else
{
ret = new UserInfo();
ret.HttpStatus = "409 Conflict";
return(ret);
}
}
trans.Commit();
}
ret.HttpStatus = "200 OK";
ret.Score = score + "";
return(ret);
}
}
/// <summary>
/// Returns the status of a game.
/// </summary>
public GameStatus GameStatus(string GameID, string Brief)
{
bool brief = false;
if (Brief == "yes")
{
brief = true;
}
int GameId;
int.TryParse(GameID, out GameId);
GamesDB game = QueryGame(GameId);
GameStatus ret = new GameStatus();
if (game == null)
{
ret.HttpStatus = "403 Forbidden";
return(ret);
}
if (game.Player2 == null)
{
ret.HttpStatus = "200 OK";
ret.GameState = "pending";
return(ret);
}
else if (game.StartTime.AddSeconds(game.TimeLimit) < DateTime.Now)
{
ret.GameState = "completed";
ret.TimeLeft = 0;
}
else
{
ret.GameState = "active";
ret.TimeLeft = (game.StartTime.AddSeconds(game.TimeLimit) - DateTime.Now).Seconds + (game.StartTime.AddSeconds(game.TimeLimit) - DateTime.Now).Minutes * 60;
}
if (!brief)
{
ret.Board = game.Board;
ret.TimeLimit = game.TimeLimit;
}
//Player info
PlayerModel P1 = new PlayerModel();
PlayerModel P2 = new PlayerModel();
ret.Player1 = P1;
ret.Player2 = P2;
P1.Score = 0;
P2.Score = 0;
if (!brief)
{
P1.Nickname = QueryUser(game.Player1);
P2.Nickname = QueryUser(game.Player2);
}
LinkedList <WordsDB> words1 = QueryWord(GameId, game.Player1);
LinkedList <WordsDB> words2 = QueryWord(GameId, game.Player2);
//Player1 calculate score and words played
List <WordPlayed> WordsPlayed = new List <WordPlayed>();
foreach (WordsDB word in words1)
{
WordPlayed curr = new WordPlayed();
curr.Word = word.Word;
curr.Score = word.Score;
P1.Score += curr.Score;
WordsPlayed.Add(curr);
}
if (ret.GameState == "completed" && !brief)
{
P1.WordsPlayed = WordsPlayed;
}
//Player2 calculate score and words played
WordsPlayed = new List <WordPlayed>();
foreach (WordsDB word in words2)
{
WordPlayed curr = new WordPlayed();
curr.Word = word.Word;
curr.Score = word.Score;
P2.Score += curr.Score;
WordsPlayed.Add(curr);
}
if (ret.GameState == "completed" && !brief)
{
P2.WordsPlayed = WordsPlayed;
}
ret.HttpStatus = "200 OK";
return(ret);
}