/// <summary>
/// Only handles response packets atm?
/// </summary>
/// <param name="responseBytes">The server packet sent as a response from a previous request</param>
/// <returns>The parsed packet object</returns>
public Packet.Packet GetPacket(byte[] responseBytes)
{
var packetType = (PacketType)responseBytes[0];
Packet.Packet packet = null;
switch (packetType)
{
case PacketType.ConnectResponse:
packet = new ConnectResponse(responseBytes);
break;
case PacketType.PingRequest:
packet = new PingRequest(responseBytes);
break;
case PacketType.GameState:
packet = new Packet.GameState(responseBytes);
break;
case PacketType.GameStateDiff:
packet = new GameStateDiff(responseBytes);
break;
}
ShowResponse(responseBytes);
return(packet);
}
public void ShowResponse(byte[] responseBytes)
{
var packetType = (PacketType)responseBytes[0];
Console.WriteLine("Response packet type = " + packetType);
switch (packetType)
{
case PacketType.ConnectResponse:
var packet = new ConnectResponse(responseBytes);
Console.WriteLine("Connect response type = " + packet.ConnectResponseType);
Console.WriteLine("Reason = " + packet.Reason);
break;
case PacketType.PingRequest:
var pingRequest = new PingRequest(responseBytes);
Console.WriteLine("Ping request: " + pingRequest.Random);
break;
case PacketType.GameState:
var gameState = new Packet.GameState(responseBytes);
Console.WriteLine(string.Format("Game state packet received ({0} bytes, {1} compressed)", gameState.State.StateBytes.Length, gameState.State.StateBytesCompressed.Length));
break;
case PacketType.GameStateDiff:
var gameStateDiff = new GameStateDiff(responseBytes);
Console.WriteLine(string.Format("Game state diff packet received"));
break;
}
}
/// <summary>
/// Sends a WorldObject update to all connected clients
/// </summary>
/// <param name="wo">The WorldObject being added / updated / removed</param>
public void SendUpdate(WorldObject wo)
{
var gameStateDiff = new GameStateDiff(wo);
var diffPacket = gameStateDiff.Serialize();
foreach (var client in Clients.Values)
{
if (client == null || client.ConnectionState != ConnectionState.Connected)
{
continue;
}
SendData(diffPacket, client.Endpoint);
}
}
/// <summary>
/// Processes the game state diff packets received in an update frame
/// </summary>
public void ProcessUpdate(GameStateDiff diff)
{
var wo = diff.WorldObject;
// determine if this is an addition / update / deletion
var guid = wo.Guid;
var worldObjects = GameState.WorldObjects;
worldObjects.TryGetValue(guid, out var existObj);
if (existObj == null)
{
// add new object
worldObjects.Add(guid, wo);
}
else
{
// update existing object
worldObjects[guid] = wo;
}
IsUpdated = true;
}
/// <summary>
/// Parses the data sent from the server into a packet
/// </summary>
/// <param name="data">The request payload data</param>
/// <returns>The response packet, or null if no response</returns>
public Packet.Packet ParsePacket(byte[] data, IPEndPoint sender)
{
// first byte is packet type
var packetType = (PacketType)data[0];
Packet.Packet packet = null;
//Console.WriteLine("Packet received: " + packetType);
switch (packetType)
{
case PacketType.GameStateDiff:
var gameStateDiff = new GameStateDiff(data);
ProcessUpdate(gameStateDiff);
break;
}
if (packet == null)
{
return(null);
}
return(packet.Response);
}
