/// <summary>
/// This part sets up a tank with the player name and sends the startup info to the client including the world size, player ID,
/// and walls.
/// </summary>
/// <param name="ss">Socket state for the connection</param>
private static void SendStartupInfo(SocketState ss)
{
if (ss.ErrorOccured == true)
{
Console.WriteLine("Error occured while accepting: \"" + ss.ErrorMessage + "\"");
return;
}
//Gets the name and ID from the socket and removes the name from the socket
string tankName = ss.GetData();
int tankID = (int)ss.ID;
ss.RemoveData(0, tankName.Length);
lock (TheWorld)
{
/*This sets up the tank, sets the cooldown frames so it can fire, adds a filler command to the dictionary, and
* spawns the tank at a random location.*/
Tank t = new Tank(tankName.Substring(0, tankName.Length - 1), tankID);
TheWorld.UpdateTank(t);
TheWorld.TankSetCooldownFrames(t.ID, FramesPerShot);
TheWorld.UpdateCommand(tankID, new ControlCommands());
SpawnTank(t);
Console.WriteLine("Player(" + tankID + ") " + "\"" + t.Name + "\" joined");
}
//Changes the delegate
ss.OnNetworkAction = ReceiveCommandData;
//Sends the tank ID and the world size
string message = tankID + "\n" + UniverseSize.ToString() + "\n";
if (!Networking.Send(ss.TheSocket, message))
{
Console.WriteLine("Error occured while sending data");
}
//Sends the walls to the client
lock (TheWorld)
{
StringBuilder wallMessage = new StringBuilder();
foreach (Wall w in TheWorld.Walls.Values)
{
wallMessage.Append(JsonConvert.SerializeObject(w) + "\n");
}
if (!Networking.Send(ss.TheSocket, wallMessage.ToString()))
{
Console.WriteLine("Error occured while sending data");
}
}
//Adds the socket state to the list of connections
SocketConnections.Add(ss);
Networking.GetData(ss);
}
/// <summary>
/// Starts the server and sets up the walls
/// </summary>
private void StartServer()
{
clients = new Dictionary <SocketState, Tank>();
// start accepting clients
theServer = Networking.StartServer(HandleNewClient, 11000);
}
/// <summary>
/// Starts the server with Networking class.
/// </summary>
private void Start()
{
Networking.StartServer(HandleNewClient, 11000);
Console.WriteLine("Server Is Running. Now Accepting New Clients.");
}
/// <summary>
/// Method for sending the data to the client sockets. It goes through the list of tanks, powerups, projectiles, and beams
/// and appends them to a stringbuilder to send. It also handles sockets that have disconnected.
/// </summary>
private static void SendDataToSockets()
{
lock (TheWorld)
{
foreach (SocketState s in SocketConnections.ToList())
{
if (!s.TheSocket.Connected)
{
int tankID = (int)s.ID;
//Makes sure that the dictionary contains the right key. If not, the tank must have died and rage quit
if (TheWorld.Tanks.ContainsKey(tankID))
{
Console.WriteLine("Player(" + tankID + ") " + "\"" + TheWorld.Tanks[(int)s.ID].Name + "\" disconnected");
TheWorld.TankDisconnect(tankID);
TheWorld.TankKill(tankID);
}
if (TheWorld.DeadTanks.ContainsKey(tankID))
{
Console.WriteLine("Player(" + tankID + ") " + "\"" + TheWorld.DeadTanks[(int)s.ID].Name + "\" disconnected");
TheWorld.TankDeadRemove(tankID);
}
SocketConnections.Remove(s);
}
}
foreach (SocketState s in SocketConnections.ToList())
{
StringBuilder frameMessage = new StringBuilder();
lock (TheWorld)
{
foreach (Tank t in TheWorld.Tanks.Values)
{
frameMessage.Append(JsonConvert.SerializeObject(t) + "\n");
}
foreach (PowerUp p in TheWorld.PowerUps.Values)
{
frameMessage.Append(JsonConvert.SerializeObject(p) + "\n");
}
foreach (Projectile p in TheWorld.Projectiles.Values)
{
frameMessage.Append(JsonConvert.SerializeObject(p) + "\n");
}
foreach (Beam b in TheWorld.Beams.Values)
{
frameMessage.Append(JsonConvert.SerializeObject(b) + "\n");
}
}
if (!Networking.Send(s.TheSocket, frameMessage.ToString()))
{
Console.WriteLine("Error occured while sending data");
}
}
}
}
private static void Main(string[] args)
{
Console.ForegroundColor = ConsoleColor.White;
Console.Title = "ENVIUM DEDICATED SERVER";
Out.MsgC(ConsoleColor.Green, "Initializing the server ...");
_buffer = new byte[4096];
_boundEndPoint = new IPEndPoint(IPAddress.Any, 644);
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, true);
try {
_socket.Bind(_boundEndPoint);
} catch (SocketException ex) {
Out.Error("Network: Cannot bound at address {0}: {1}", _boundEndPoint, ex.Message);
Console.ReadLine();
return;
}
Out.Msg("Network: Socket bounded at {0}", _socket.LocalEndPoint as IPEndPoint);
FrameSnapshotManager = new FrameSnapshotManager();
ServerPluginHandler = new ServerPlugin();
Server = new GameServer(_socket)
{
State = EServerState.Loading,
TickInterval = GetTickInterval()
};
Networking.Initialize();
new Thread(GameTick)
{
IsBackground = true
}.Start();
Server.State = EServerState.Active;
Out.Msg("Done loading.");
var clientEp = (EndPoint) new IPEndPoint(IPAddress.Any, 0);
_socket.BeginReceiveFrom(_buffer, 0, _buffer.Length, SocketFlags.None, ref clientEp, DoReceiveFrom, clientEp);
string read;
while ((read = Console.ReadLine()) != "exit")
{
if (read == "help")
{
continue;
}
if (read == "curtime")
{
var time = Utils.SysTime();
Console.WriteLine("Current server time: {0}", time);
continue;
}
Console.WriteLine("Unknown command \"{0}\".", read);
}
}
public void Attach(Networking Networking)
{
this.Networking = Networking;
Networking.HookPacket <HelloPacket>(HelloPacketRecieved);
Networking.ClientConnected += Networking_ClientConnected;
}
/// <summary>
/// This method is called the first time a client connects
/// </summary>
/// <param name="state"></param>
private static void RecieveStartupInfo(SocketState state)
{
controller.UpdateWorld(state);
state.OnNetworkAction = ReceiveMessageFromClient;
Networking.GetData(state);
}
public static void HandleNewClients(SocketState s)
{
s.callMe = ReceiveName;
Networking.GetData(s);
}
/// <summary>
/// starts the server on the specified port
/// </summary>
private static void StartServer()
{
Networking.StartServer(OnStart, 11000);
}
private void SendData()
{
while (true)
{
List <SocketState> playerSocketCopy = new List <SocketState>(playerSockets.Values);
StringBuilder sb = new StringBuilder();
List <long> listToRemove = new List <long>();
var prev = DateTime.Now;
//For every socket connected to this server send a frame
foreach (SocketState state in playerSocketCopy)
{
foreach (Tank t in world.GetTanks())
{
t.projectileDelay += 1;
}
if (powerUpTracker < powerupCount)
{
timeSinceLastPowerUp += FPS;
}
if (timeSinceLastPowerUp > randPowerupTime)
{
SpawnPowerup();
randPowerupTime = rand.Next(0, maxPowerupSpawnTime);
timeSinceLastPowerUp = 0;
}
//Seems innefficient to do this for every tank but.. TODO
lock (world)
{
foreach (Tank t in world.GetTanks())
{
sb.Append(JsonConvert.SerializeObject(t) + "\n");
if (t.IsDead())
{
RespawnTank(t);
}
if (t.IsDisconnected())
{
listToRemove.Add(t.GetID());
}
}
foreach (long ID in listToRemove)
{
world.RemoveTankByID((int)ID);
}
listToRemove.Clear();
foreach (Projectile p in world.GetProjectiles())
{
MoveProjectile(p);
sb.Append(JsonConvert.SerializeObject(p) + "\n");
if (p.IsDead())
{
listToRemove.Add(p.GetID());
}
}
foreach (long ID in listToRemove)
{
world.RemoveProjectile(ID);
}
listToRemove.Clear();
foreach (Beam b in world.GetBeams())
{
sb.Append(JsonConvert.SerializeObject(b) + "\n");
listToRemove.Add(b.GetID());
}
foreach (long ID in listToRemove)
{
world.RemoveBeam(ID);
}
listToRemove.Clear();
foreach (Powerup up in world.GetPowerups())
{
sb.Append(JsonConvert.SerializeObject(up) + "\n");
if (up.IsDead())
{
listToRemove.Add(up.GetID());
}
}
if (!working)
{
foreach (long ID in listToRemove)
{
world.RemovePowerup(ID);
powerUpTracker--;
}
}
}
listToRemove.Clear();
List <SocketState> mySockets = new List <SocketState>(playerSockets.Values);
foreach (SocketState player in mySockets)
{
Networking.Send(player.TheSocket, sb.ToString());
}
//Console.WriteLine(sb.ToString());
sb.Clear();
}
//managing the framerate for when this loop repeats
var now = DateTime.Now;
if (now <= prev.AddMilliseconds(FPS))
{
TimeSpan timeSpan = prev.AddMilliseconds(FPS) - now;
System.Threading.Thread.Sleep((int)timeSpan.TotalMilliseconds);
}
prev = DateTime.Now;
}
}
/// <summary>
/// Detects the incoming messages of new players when they connect then calls Get Data in order to create an event loop to continue listening for
/// new incoming players
/// </summary>
/// <param name="state">Connection of incoming player.</param>
private void ProcessMessage(SocketState state)
{
string data;
long ID = state.ID;
string[] movingCommands;
if (state.ErrorOccured)
{
PlayerDisconnect(state);
Networking.SendAndClose(state.TheSocket, "error");
//Networking.GetData(state);
return;
}
data = state.GetData();
state.ClearData();
if (String.IsNullOrEmpty(data))
{
Networking.GetData(state);
return;
}
//checks to see if user is sending a user command or name
if (data.StartsWith("{\"moving\""))
{
movingCommands = data.Split(',');
foreach (string s in movingCommands)
{
string[] command = s.Split(':');
foreach (string t in command)
{
string tempString = t.Replace("\"", String.Empty);
string tempString2 = tempString.Replace("{", String.Empty);
string stringToCompare = tempString2.Replace("}", String.Empty);
switch (stringToCompare)
{
case "none":
break;
case "up":
MoveTank(new Vector2D(0, playerSpeed * -1), new Vector2D(0, -1), players[ID]);
break;
case "down":
MoveTank(new Vector2D(0, playerSpeed), new Vector2D(0, 1), players[ID]);
break;
case "left":
MoveTank(new Vector2D(playerSpeed * -1, 0), new Vector2D(-1, 0), players[ID]);
break;
case "right":
MoveTank(new Vector2D(playerSpeed, 0), new Vector2D(1, 0), players[ID]);
break;
case "main":
FireProjectile(players[ID]);
break;
case "alt":
FireBeam(players[ID]);
break;
case "x":
if (double.TryParse(command[2], out double anglex))
{
turretAimx = anglex;
}
break;
case "y":
if (command[1].Length > 4)
{
if (double.TryParse(command[1].Substring(0, command[1].Length - 5), out double angley))
{
turretAimy = angley;
}
players[ID].SetAim(new Vector2D(turretAimx, turretAimy));
}
break;
}
}
}
}
else if (!players.ContainsKey(ID))
{
Console.WriteLine("Player " + state.ID.ToString() + " Connected.");
CreateTank(data, ID);
Sendwalls(state);
Networking.GetData(state);
return;
}
Networking.GetData(state);
}
/// <summary>
/// Invoked every iteration through the frame loop.
/// Update World, then sends it to each client.
/// </summary>
private static void Update()
{
// Updated world
StringBuilder sb = new StringBuilder();
lock (World)
{
// For all Stars in World
foreach (Star star in World.Stars.Values)
{
// Append each Star
sb.Append(JsonConvert.SerializeObject(star) + "\n");
// Destroy all Ships colliding with Star
foreach (Ship ship in World.Ships.Values)
{
Vector2D distance = star.loc - ship.loc;
if (distance.Length() < StarSize)
{
ship.hp = 0;
if (GAMEMODE_RandomDeadlyStar)
{
ship.score--;
}
ship.alive = false;
DeadShips.Add(ship);
}
}
// Destroy all Projectiles colliding with Star
foreach (Projectile p in World.Projectiles.Values)
{
Vector2D distance = star.loc - p.loc;
if (distance.Length() < StarSize)
{
p.alive = false;
DeadProjectiles.Add(p.ID);
}
}
}
// For all Ships in World
foreach (Ship ship in World.Ships.Values)
{
// Thrust Ship
if (ship.up)
{
ship.thrust = true;
ship.velocity += Acceleration(Thrust(ship.dir), Gravity(ship.loc));
ship.loc += ship.velocity;
ship.up = false;
}
// Non-thrusting Ship
else
{
ship.velocity += Gravity(ship.loc);
ship.loc += ship.velocity;
ship.thrust = false;
}
// Rotate Left
if (ship.left)
{
ship.dir = RotateLeft(ship.dir);
ship.left = false;
}
// Rotate right
if (ship.right)
{
ship.dir = RotateRight(ship.dir);
ship.right = false;
}
// Fire projectile
if (ship.space && ship.alive)
{
// Begin spacing projectiles
ship.projectileTimer++;
if (ship.projectileTimer >= ProjectileFiringDelay)
{
Projectile p = new Projectile();
p.ID = ProjectileID;
p.loc = ship.loc;
p.dir = ship.dir;
p.alive = true;
p.owner = ship.ID;
p.velocity = (p.dir * ProjectileSpeed) + ship.velocity;
World.Projectiles.Add(p.ID, p);
ship.projFired++;
ship.projectileTimer = 0;
ProjectileID++;
}
ship.space = false;
}
// If Ship exits World's bounds
if (ship.loc.GetX() >= UniverseSize / 2 || ship.loc.GetX() <= -(UniverseSize / 2) ||
ship.loc.GetY() >= UniverseSize / 2 || ship.loc.GetY() <= -(UniverseSize / 2))
{
// Wrap around Ship
ship.loc = WrapAround(ship.loc);
}
// Destroy all Projectiles colliding with Ship and vise-versa
foreach (Projectile p in World.Projectiles.Values)
{
Vector2D distance = ship.loc - p.loc;
if (distance.Length() < ShipSize && ship.ID != p.owner && ship.alive)
{
p.alive = false;
ship.hp--;
ShipHits.Add(World.Ships[p.owner]);
if (ship.hp <= 0)
{
ship.alive = false;
DeadShips.Add(ship);
ScoringShips.Add(p.owner);
}
DeadProjectiles.Add(p.ID);
}
}
sb.Append(JsonConvert.SerializeObject(ship) + "\n");
}
// For all Projectiles in World
foreach (Projectile p in World.Projectiles.Values)
{
// Update projectile location with constant velocity
p.loc += p.velocity;
// If Projectile exits World's bounds
if (p.loc.GetX() >= UniverseSize / 2 || p.loc.GetX() <= -(UniverseSize / 2) ||
p.loc.GetY() >= UniverseSize / 2 || p.loc.GetY() <= -(UniverseSize / 2))
{
// Destroy Projectile
p.alive = false;
DeadProjectiles.Add(p.ID);
}
sb.Append(JsonConvert.SerializeObject(p) + "\n");
}
// All Projectiles-to-destroy are removed from World
foreach (int i in DeadProjectiles)
{
World.Projectiles.Remove(i);
}
DeadProjectiles.Clear();
// All Ships-to-score have score increased
foreach (int i in ScoringShips)
{
Ship s = World.Ships.Values.ElementAt(i);
s.score++;
}
ScoringShips.Clear();
// All Ships-to-destroy are removed from World and respawned
foreach (Ship ship in DeadShips)
{
if (ship.hp <= 0)
{
// Incremental value has a further effect on respawn rate
ship.respawnTimer += 20;
}
if (ship.respawnTimer >= RespawnDelay * TimePerFrame)
{
ship.respawnTimer = 0;
ResetShip(ship);
ResurrectedShips.Add(ship);
}
}
// Respawn dead Ship
foreach (Ship ship in ResurrectedShips)
{
DeadShips.Remove(ship);
}
ResurrectedShips.Clear();
// Add hit projectiles to Ship
foreach (Ship ship in ShipHits)
{
World.Ships[ship.ID].projHit++;
}
ShipHits.Clear();
// Each client is updated with appended World information
foreach (SocketState state in Clients)
{
Networking.Send(state.theSocket, sb.ToString());
}
}
}
/// <summary>
/// Main method responsible for running all server processes.
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
// Allowing the program to update the database when closed
Program.SetConsoleCtrlHandler(new HandlerRoutine(ConsoleCtrlCheck), true);
// Program start time
LastAccessedTime = DateTime.Now;
// XML Settings are read and adjusted...
ReadSettings("...//...//...//Resources/settings.xml");
World = new World();
Clients = new List <SocketState>();
ShipID = 0;
ProjectileID = 0;
// Initial Star Creation
Star star = new Star();
// Game mode alteration
if (GAMEMODE_RandomDeadlyStar)
{
Random rand = new Random();
star.loc = new Vector2D(rand.Next(-(UniverseSize / 2), UniverseSize / 2),
rand.Next(-(UniverseSize / 2), UniverseSize / 2));
}
else
{
star.loc = new Vector2D(StarX, StarY);
}
// Star added to World
World.Stars.Add(0, star);
// Temporary lists initialized
DeadShips = new HashSet <Ship>();
ResurrectedShips = new List <Ship>();
DeadProjectiles = new List <int>();
ScoringShips = new HashSet <int>();
ShipHits = new List <Ship>();
Watch = new Stopwatch();
// Begin event-driven callback for handling new clients
Networking.ServerAwaitingClientLoop(HandleNewClient);
System.Console.Out.WriteLine("Server is running, awaiting first client...");
// Begin forever loop which handles client data and updates and sends World data based on
// result
while (true)
{
Watch.Start();
while (Watch.ElapsedMilliseconds < TimePerFrame)
{
}
Watch.Reset();
Update();
}
}
