private void OnInvalidPlayerName(SnakeBot snake, JObject json)
{
var reason = (string)json["reasonCode"];
throw new InvalidOperationException(
$"The given player name '{snake.Name}' is not valid because. Reason: {reason}");
}
private void OnGameStarting(SnakeBot snake, JObject json)
{
var settings = json["gameSettings"].ToObject <GameSettings>();
_observer.OnGameStart(settings);
snake.OnGameStart(settings);
}
/// <summary>
/// Registers the specified <see cref="SnakeBot"/> with the server and
/// tries to initiate a new game using the specified <see cref="GameSettings"/>.
/// The specified <see cref="SnakeBot"/> instance will receive calls to
/// <see cref="SnakeBot.GetNextMove"/> when the server requests a new move
/// from this client.
/// </summary>
/// <remarks>This method will throw an exception if the web socket is not open.</remarks>
/// <param name="snake">The specified <see cref="SnakeBot"/></param>
/// <param name="isTrainingMode">Indicates if the game mode is training or not</param>
/// <param name="settings">The specified <see cref="GameSettings"/>, can be null.</param>
/// <exception cref="ArgumentNullException" />
/// <exception cref="InvalidOperationException">
/// If the socket is not opened, or if the specified <see cref="SnakeBot"/> has an invalid name.
/// </exception>
public void Start(SnakeBot snake, bool isTrainingMode, GameSettings settings)
{
_isTrainingMode = isTrainingMode;
if (snake == null)
{
throw new ArgumentNullException(nameof(snake));
}
if (_socket.State != WebSocketState.Open)
{
throw new InvalidOperationException("Cannot start a new game without connecting the Snake server. " +
$"The current state of the connection is { _socket.State}.");
}
SendRegisterPlayerRequest(snake.Name, settings);
SendClientInfoMessage();
while (_socket.State == WebSocketState.Open)
{
var message = ReceiveString();
var json = JObject.Parse(message);
OnMessageReceived(snake, json);
}
}
private void OnMessageReceived(SnakeBot snake, JObject json)
{
string messageType = (string)json?["type"] ?? String.Empty;
switch (messageType)
{
case MessageType.GameStarting:
OnGameStarting();
break;
case MessageType.GameEnded:
OnGameEnded(json);
break;
case MessageType.MapUpdated:
OnMapUpdated(snake, json);
break;
case MessageType.SnakeDead:
OnSnakeDead(json);
break;
case MessageType.PlayerRegistered:
OnPlayerRegistered();
break;
case MessageType.InvalidPlayerName:
OnInvalidPlayerName(snake, json);
break;
case MessageType.HeartBeatResponse:
break;
}
}
private void OnMapUpdated(SnakeBot snake, JObject json)
{
var map = Map.FromJson((JObject)json["map"], (string)json["receivingPlayerId"]);
_observer.OnUpdate(map);
var direction = snake.GetNextMove(map);
SendRegisterMoveRequest(direction, map.Tick, (string)json["gameId"]);
}
private void OnMessageReceived(SnakeBot snake, JObject json)
{
var messageType = (string)json?["type"] ?? string.Empty;
switch (messageType)
{
case MessageType.GameStarting:
OnGameStarting(snake, json);
break;
case MessageType.GameEnded:
OnGameEnded(json);
break;
case MessageType.MapUpdated:
OnMapUpdated(snake, json);
break;
case MessageType.SnakeDead:
OnSnakeDead(json);
break;
case MessageType.InvalidPlayerName:
OnInvalidPlayerName(snake, json);
break;
case MessageType.PlayerRegistered:
if (snake.AutoStart)
{
SendStartGameRequest();
}
break;
case MessageType.GameLink:
OnGameLink(json);
break;
case MessageType.HeartBeatResponse:
break;
}
}
/// <summary>
/// Registers the specified <see cref="SnakeBot" /> with the server and
/// tries to initiate a game. The specified <see cref="SnakeBot" /> instance
/// will receive calls to <see cref="SnakeBot.GetNextMove" /> when the server
/// requests a new move from this client.
/// </summary>
/// <remarks>This method will throw an exception if the web socket is not open.</remarks>
/// <param name="snake">The specified <see cref="SnakeBot" /></param>
/// <exception cref="ArgumentNullException" />
/// <exception cref="InvalidOperationException">
/// If the socket is not opened, or if the specified <see cref="SnakeBot" /> has an invalid name.
/// </exception>
public void Start(SnakeBot snake)
{
Start(snake, null);
}
/// <summary>
/// Registers the specified <see cref="SnakeBot"/> with the server and
/// tries to initiate a game. The specified <see cref="SnakeBot"/> instance
/// will receive calls to <see cref="SnakeBot.GetNextMove"/> when the server
/// requests a new move from this client.
/// </summary>
/// <remarks>This method will throw an exception if the web socket is not open.</remarks>
/// <param name="snake">The specified <see cref="SnakeBot"/></param>
/// <param name="isTrainingMode">Indicates if the game mode is training or not</param>
/// <exception cref="ArgumentNullException" />
/// <exception cref="InvalidOperationException">
/// If the socket is not opened, or if the specified <see cref="SnakeBot"/> has an invalid name.
/// </exception>
public void Start(SnakeBot snake, bool isTrainingMode)
{
Start(snake, isTrainingMode, null);
}
/// <summary>
/// Initializes a new instanse of the <see cref="SnakeBot"/> class
/// with the specified name.
/// </summary>
/// <param name="name">The specified name.</param>
/// <param name="backupBot">A backup algorithm to use when the first one results in certain death.</param>
protected SnakeBot(string name, SnakeBot backupBot)
{
Name = name;
BackupBot = backupBot;
}
