public GameInfo CreateGame(RequestedGame r)
{
Game game = new Game();
Chess chess = new Chess();
game.FEN = chess.fen;
game.Status = "wait";
if (r.playerColor == "white")
{
game.White_ID = r.playerID;
}
if (r.playerColor == "black")
{
game.Black_ID = r.playerID;
}
db.Games.Add(game);
db.SaveChanges();
GameInfo gameInfo = new GameInfo();
gameInfo.gameID = game.ID;
gameInfo.FEN = game.FEN;
return(gameInfo);
}
public GameInfo GetGame(RequestedGame r)
{
/* matchmaking
* 1. enumerates all games with "wait" status and returns the first
* 2. we're looking for a game with "white" or "black" empty slot
* 3. we can reconnect to our game after a while */
Game game = db
.Games
.OrderByDescending(g => g.ID)
.Where(g =>
// new connect
(g.Status == "wait" && ((r.playerColor == "white" && g.White_ID == 0) ||
(r.playerColor == "black" && g.Black_ID == 0)))
|| // or reconnect
(g.Status == "play" && ((r.playerColor == "white" && g.White_ID == r.playerID) ||
(r.playerColor == "black" && g.Black_ID == r.playerID))))
.FirstOrDefault();
if (game == null)
{
return(null);
}
return(JoinGame(game, r));
}
GameInfo JoinGame(Game game, RequestedGame r)
{
if (r.playerColor == "white")
{
game.White_ID = r.playerID;
}
if (r.playerColor == "black")
{
game.Black_ID = r.playerID;
}
game.Status = "play";
db.Entry(game).State = System.Data.Entity.EntityState.Modified;// we commit updates to database
db.SaveChanges();
GameInfo gameInfo = new GameInfo();
gameInfo.gameID = game.ID;
gameInfo.FEN = game.FEN;
return(gameInfo);
}