public void SetMapTileMatrix(MapTileType[][] tileMatrix)
{
MapTileMatrix = tileMatrix;
//broadcast the new map to all clients.
MulticastNullTerminated(CommandStringHelper.GetUpdateMapCommandStringFromTileMatrix(tileMatrix));
}
protected override void OnConnected(TcpSession session)
{
var currentGameServerSession = _gameServerSessionsById[session.Id];
//send map tiles to the connected client.
currentGameServerSession.SendNullTerminated(CommandStringHelper.GetUpdateMapCommandStringFromTileMatrix(MapTileMatrix));
//send the client's ID to the client.
currentGameServerSession.SendNullTerminated(CommandStringHelper.GetClientIdCommandStringFromClientId(session.Id));
//send a message to all other clients that a player has joined, and attach the player's initial position.
MulticastNullTerminated(CommandStringHelper.GetPlayerUpdateCommandStringFromGameServerSession(currentGameServerSession));
}
protected override void OnReceived(byte[] buffer, long offset, long size)
{
var text = Encoding.UTF8.GetString(buffer, (int)offset, (int)size);
var commands = CommandStringHelper.SplitReceivedTextByEndOfCommandMarkers(text);
foreach (var command in commands)
{
Console.WriteLine($"Received from client {Id}: {command}");
var split = command.Split(':');
var commandName = split[0];
var commandArguments = split?.Length > 1 ?
split[1].Split(';') :
Array.Empty <string>();
HandleReceivedCommand(commandName, commandArguments);
}
}
private void HandleReceivedCommand(string commandName, string[] commandArguments)
{
switch (commandName)
{
case "POSITIONUPDATE":
{
//parse the position X and Y coordinates from the command.
var playerPosition = new PlayerPosition()
{
X = double.Parse(commandArguments[0], Program.UnitedStatesCulture),
Y = double.Parse(commandArguments[1], Program.UnitedStatesCulture)
};
PlayerPosition = playerPosition;
//broadcast a player update to all the server's clients.
_server.MulticastNullTerminated(
CommandStringHelper.GetPlayerUpdateCommandStringFromGameServerSession(this));
break;
}
}
}
public void MulticastNullTerminated(string text)
{
Console.WriteLine($"Sending to all clients: {text}");
Multicast(CommandStringHelper.InsertEndOfCommandMarker(text));
}
public void SendNullTerminated(string text)
{
Console.WriteLine($"Sending to client {Id}: {text}");
Send(CommandStringHelper.InsertEndOfCommandMarker(text));
}
