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shinichi
313
ClientApp/Utils/EngineConnection.cs
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313
ClientApp/Utils/EngineConnection.cs
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using System;
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using System.Collections.Generic;
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using System.Text;
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using RH_Engine;
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using System.Net.Sockets;
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namespace Client
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{
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public delegate void HandleSerial(string message);
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public delegate void HandleNoTunnelId();
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public delegate void OnSuccessfullConnection();
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public sealed class EngineConnection
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{
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private static EngineConnection instance = null;
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private static readonly object padlock = new object();
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public HandleNoTunnelId OnNoTunnelId;
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public OnSuccessfullConnection OnSuccessFullConnection;
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private static PC[] PCs = {
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//new PC("DESKTOP-M2CIH87", "Fabian"),
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//new PC("T470S", "Shinichi"),
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//new PC("DESKTOP-DHS478C", "semme"),
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new PC("HP-ZBOOK-SEM", "Sem")
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//new PC("DESKTOP-TV73FKO", "Wouter"),
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//new PC("DESKTOP-SINMKT1", "Ralf van Aert"),
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//new PC("NA", "Bart")
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};
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private static ServerResponseReader serverResponseReader;
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private static string sessionId = string.Empty;
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private static string tunnelId = string.Empty;
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private static string cameraId = string.Empty;
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private static string routeId = string.Empty;
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private static string panelId = string.Empty;
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private static string bikeId = string.Empty;
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private static string headId = string.Empty;
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public float BikeSpeed { get; set; }
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public float BikePower { get; set; }
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public float BikeBPM { get; set; }
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public float BikeResistance { get; set; }
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public bool FollowingRoute = false;
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private static NetworkStream stream;
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private static Dictionary<string, HandleSerial> serialResponses = new Dictionary<string, HandleSerial>();
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private Command mainCommand;
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public bool Connected = false;
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EngineConnection()
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{
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BikeSpeed = 0;
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BikePower = 0;
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BikeBPM = 0;
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BikeResistance = 50;
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}
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/// <summary>
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/// Singleton constructor
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/// </summary>
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public static EngineConnection INSTANCE
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{
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get
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{
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lock (padlock)
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{
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if (instance == null)
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{
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instance = new EngineConnection();
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}
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}
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return instance;
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}
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}
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/// <summary>
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/// connects to the vr engine and initalizes the serverResponseReader
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/// </summary>
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public void Connect()
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{
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TcpClient client = new TcpClient("145.48.6.10", 6666);
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stream = client.GetStream();
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initReader();
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CreateConnection();
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}
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/// <summary>
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/// initializes and starts the reading of the responses from the vr server
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/// </summary>
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/// <param name="stream">the networkstream</param>
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private void initReader()
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{
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serverResponseReader = new ServerResponseReader(stream);
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serverResponseReader.callback = HandleResponse;
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serverResponseReader.StartRead();
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}
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#region VR Message traffic
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/// <summary>
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/// connects to the server and creates the tunnel
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/// </summary>
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/// <param name="stream">the network stream to use</param>
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public void CreateConnection()
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{
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WriteTextMessage( "{\r\n\"id\" : \"session/list\",\r\n\"serial\" : \"list\"\r\n}");
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// wait until we have got a sessionId
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while (sessionId == string.Empty) { }
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string tunnelCreate = "{\"id\" : \"tunnel/create\", \"data\" : {\"session\" : \"" + sessionId + "\"}}";
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WriteTextMessage(tunnelCreate);
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}
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/// <summary>
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/// callback method that handles responses from the server
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/// </summary>
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/// <param name="message">the response message from the server</param>
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public void HandleResponse(string message)
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{
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string id = JSONParser.GetID(message);
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// because the first messages don't have a serial, we need to check on the id
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if (id == "session/list")
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{
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sessionId = JSONParser.GetSessionID(message, PCs);
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}
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else if (id == "tunnel/create")
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{
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tunnelId = JSONParser.GetTunnelID(message);
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Console.WriteLine("set tunnel id to " + tunnelId);
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if (tunnelId == null)
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{
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Write("could not find a valid tunnel id!");
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OnNoTunnelId?.Invoke();
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Connected = false;
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FollowingRoute = false;
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return;
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} else
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{
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Write("got tunnel id! " + tunnelId);
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Connected = true;
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OnSuccessFullConnection?.Invoke();
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}
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}
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if (message.Contains("serial"))
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{
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//Console.WriteLine("GOT MESSAGE WITH SERIAL: " + message + "\n\n\n");
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string serial = JSONParser.GetSerial(message);
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//Console.WriteLine("Got serial " + serial);
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if (serialResponses.ContainsKey(serial)) serialResponses[serial].Invoke(message);
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}
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}
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public void initScene()
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{
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Write("initializing scene...");
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mainCommand = new Command(tunnelId);
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// reset the scene
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WriteTextMessage(mainCommand.ResetScene());
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//Get sceneinfo and set the id's
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SendMessageAndOnResponse(mainCommand.GetSceneInfoCommand("sceneinfo"), "sceneinfo",
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(message) =>
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{
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//Console.WriteLine("\r\n\r\n\r\nscene info" + message);
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cameraId = JSONParser.GetIdSceneInfoChild(message, "Camera");
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string headId = JSONParser.GetIdSceneInfoChild(message, "Head");
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string handLeftId = JSONParser.GetIdSceneInfoChild(message, "LeftHand");
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string handRightId = JSONParser.GetIdSceneInfoChild(message, "RightHand");
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//Force(stream, mainCommand.DeleteNode(handLeftId, "deleteHandL"), "deleteHandL", (message) => Console.WriteLine("Left hand deleted"));
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//Force(stream, mainCommand.DeleteNode(handRightId, "deleteHandR"), "deleteHandR", (message) => Console.WriteLine("Right hand deleted"));
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});
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// add the route and set the route id
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SendMessageAndOnResponse(mainCommand.RouteCommand("routeID"), "routeID", (message) => routeId = JSONParser.GetResponseUuid(message));
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}
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internal void StartRouteFollow()
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{
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Write("Starting route follow...");
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FollowingRoute = true;
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SendMessageAndOnResponse(mainCommand.AddBikeModel("bikeID"), "bikeID",
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(message) =>
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{
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bikeId = JSONParser.GetResponseUuid(message);
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SendMessageAndOnResponse(mainCommand.addPanel("panelAdd", bikeId), "panelAdd",
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(message) =>
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{
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panelId = JSONParser.getPanelID(message);
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WriteTextMessage(mainCommand.ColorPanel(panelId));
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UpdateInfoPanel();
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while (cameraId == string.Empty) { }
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SetFollowSpeed(5.0f);
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});
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});
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}
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public void UpdateInfoPanel()
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{
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ShowPanel(BikeSpeed, (int)BikeBPM, (int)BikePower, (int)BikeResistance);
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WriteTextMessage(mainCommand.RouteSpeed(BikeSpeed, bikeId));
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WriteTextMessage(mainCommand.RouteSpeed(BikeSpeed, cameraId));
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}
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public void ShowPanel(double bikeSpeed, int bpm, int power, int resistance)
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{
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WriteTextMessage(mainCommand.ClearPanel(panelId));
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SendMessageAndOnResponse(mainCommand.showBikespeed(panelId, "bikeSpeed", bikeSpeed), "bikeSpeed",
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(message) =>
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{
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// TODO check if is drawn
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});
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SendMessageAndOnResponse(mainCommand.showHeartrate(panelId, "bpm", bpm), "bpm",
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(message) =>
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{
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// TODO check if is drawn
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});
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SendMessageAndOnResponse(mainCommand.showPower(panelId, "power", power), "power",
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(message) =>
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{
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// TODO check if is drawn
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});
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SendMessageAndOnResponse(mainCommand.showResistance(panelId, "resistance", resistance), "resistance",
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(message) =>
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{
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// TODO check if is drawn
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});
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// Check if every text is drawn!
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WriteTextMessage(mainCommand.SwapPanel(panelId));
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}
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private void SetFollowSpeed(float speed)
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{
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WriteTextMessage(mainCommand.RouteFollow(routeId, bikeId, speed, new float[] { 0, -(float)Math.PI / 2f, 0 }, new float[] { 0, 0, 0 }));
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WriteTextMessage(mainCommand.RouteFollow(routeId, cameraId, speed));
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}
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#endregion
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#region message send/receive
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/// <summary>
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/// method that sends the speciefied message with the specified serial, and executes the given action upon receivind a reply from the server with this serial.
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/// </summary>
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/// <param name="stream">the networkstream to use</param>
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/// <param name="message">the message to send</param>
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/// <param name="serial">the serial to check for</param>
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/// <param name="action">the code to be executed upon reveiving a reply from the server with the specified serial</param>
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public void SendMessageAndOnResponse(string message, string serial, HandleSerial action)
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{
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if (serialResponses.ContainsKey(serial))
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{
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serialResponses[serial] = action;
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} else
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{
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serialResponses.Add(serial, action);
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}
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WriteTextMessage(message);
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}
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/// <summary>
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/// writes a message to the server
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/// </summary>
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/// <param name="stream">the network stream to use</param>
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/// <param name="message">the message to send</param>
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public void WriteTextMessage(string message)
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{
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byte[] msg = Encoding.ASCII.GetBytes(message);
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byte[] res = new byte[msg.Length + 4];
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Array.Copy(BitConverter.GetBytes(msg.Length), 0, res, 0, 4);
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Array.Copy(msg, 0, res, 4, msg.Length);
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stream.Write(res);
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//Write("sent message " + message);
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}
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#endregion
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public void Stop()
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{
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serverResponseReader.Stop();
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}
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public void Write(string msg)
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{
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Console.WriteLine( "[ENGINECONNECT] " + msg);
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}
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}
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}
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