/// <summary>
/// Callback for when the user first connects to the server.
/// Sends the player name off to the server.
/// Sets the new callback to be for when we receive data.
/// </summary>
/// <param name="state"></param>
private void connectCallbackFunc(Preserved_Socket_State state)
{
base.BeginInvoke(new MethodInvoker(() => updatePanel(false)));
actionCallback handler = receivePlayerFunc;
state.callback = handler;
string name = playerName.Text + '\n';
Network.Send(state.workSocket, name);
}
/// <summary>
/// Callback for when the user receieves data from the server.
/// Sets initial player cube if we don't have it.
/// Otherwise it sets all of the new cubes in the world.
/// Asks for more data from the server.
/// </summary>
/// <param name="state"></param>
private void receiveDataFunc(Preserved_Socket_State state)
{
lock (worldInfo)
{
state.sb.Append(encoding.GetString(state.buffer, 0, state.bytesRead));
string response = state.sb.ToString();
string lastCube = worldInfo.updateCubes(response);
state.sb.Replace(response, lastCube);
this.Invalidate();
Network.i_want_more_data(state);
}
}
/// <summary>
/// This handles what happens when the connection with the Server has
/// been established. When the Server has connected, the player's name
/// is sent to the Server so it can establish a Circle object for the player.
/// </summary>
/// <param name="obj"></param>
private void Contact_Established(Preserved_Socket_State obj)
{
game_timer.Start();
logger.LogInformation("Contact with Server established!");
obj.on_data_received_handler = Get_Player_Circle;
Networking.Send(obj.socket, player_name);
connected = true;
Client_and_GUI.ActiveForm.KeyDown += new KeyEventHandler(Space_Down);
if (!obj.Has_More_Data())
{
Networking.await_more_data(obj); // * must "await_more_data" if you want to receive messages.
}
}
/// <summary>
/// This is the event for when the "Connect" button is clicked on the Login GUI. When the button is pressed,
/// it attempts to establish a connection with the given Server.
/// </summary>
/// <param name="o"></param>
/// <param name="e"></param>
private void Connect_To_Server(object o, EventArgs e)
{
if (this.server != null && this.server.socket.Connected)
{
logger.LogInformation("Shutting down the connection");
this.server.socket.Shutdown(System.Net.Sockets.SocketShutdown.Both);
return;
}
logger.LogInformation("Asking the network code to connect to the server.");
player_name = player_name_box.Text;
if (player_name is "")
{
player_name = $"{new Random()}";
}
server_name = server_address_box?.Text;
this.server = Networking.Connect_to_Server(Contact_Established, server_name);
}
/// <summary>
/// Callback that happens when we receive the player data from the
/// server.
/// </summary>
/// <param name="state"></param>
private void receivePlayerFunc(Preserved_Socket_State state)
{
lock (worldInfo)
{
actionCallback handler = receiveDataFunc;
state.callback = handler;
state.sb.Append(encoding.GetString(state.buffer, 0, state.bytesRead));
string response = state.sb.ToString();
Cube playerCube = JsonConvert.DeserializeObject <Cube>(response);
playerCubeUid = playerCube.uid;
worldInfo.addCube(playerCube);
hasPlayerCube = true;
this.Invalidate();
Network.i_want_more_data(state);
}
}
/// <summary>
/// This handles the first phase of the connection protocol. The first Circle
/// sent by the Server should be the Circle designated to the player. Once it is
/// received, it is added to the World's collection of objects.
/// </summary>
/// <param name="obj"></param>
private void Get_Player_Circle(Preserved_Socket_State obj)
{
obj.on_data_received_handler = Get_World_Information;
Circle sent_circle = JsonConvert.DeserializeObject <Circle>(obj.Message);
if (sent_circle.GetName.Equals(player_name))
{
player_circle = sent_circle;
player_id = player_circle.ID;
}
lock (game_world)
{
if (!game_world.Contains(player_id))
{
game_world.Add(player_id, player_circle);
}
}
Networking.await_more_data(obj);
}
/// <summary>
/// When a request comes in (from a browser) this method will
/// be called by the Networking code. When a full message has been
/// read (as defined by an empty line in the overall message) send
/// a response based on the request.
/// </summary>
/// <param name="network_message_state"> provided by the Networking code, contains socket and message</param>
private static void RequestFromBrowserHandler(Preserved_Socket_State network_message_state)
{
Console.WriteLine($"{++counter,4}: {network_message_state.Message}");
try
{
// by definition if there is a new line, then the request is done
if (network_message_state.Message == "\r")
{
Networking.Send(network_message_state.socket, BuildHTTPResponse());
// the message response told the browser to disconnect, but
// if they didn't we will do it.
if (network_message_state.socket.Connected)
{
network_message_state.socket.Shutdown(SocketShutdown.Both);
network_message_state.socket.Close();
}
}
}
catch (Exception exception)
{
Console.WriteLine($"Something went wrong... this is a bad error message. {exception}");
}
}
/// <summary>
/// Basic connect handler - i.e., a browser has connected!
/// </summary>
/// <param name="state"> Networking state object created by the Networking Code. Contains the socket.</param>
private static void OnClientConnect(Preserved_Socket_State state)
{
state.on_data_received_handler = RequestFromBrowserHandler;
Networking.await_more_data(state);
}
/// <summary>
/// When a request comes in (from a browser) this method will
/// be called by the Networking code. When a full message has been
/// read (as defined by an empty line in the overall message) send
/// a response based on the request.
/// </summary>
/// <param name="network_message_state"> provided by the Networking code, contains socket and message</param>
private static void RequestFromBrowserHandler(Preserved_Socket_State network_message_state)
{
Console.WriteLine($"{++counter,4}: {network_message_state.Message}");
try
{
if (network_message_state.Message.Equals("GET / HTTP/1.1\r"))
{
string main_page = Build_Main_Page();
Send_And_Close_Connection(network_message_state.socket, main_page);
}
else if (network_message_state.Message.Equals("GET /highscores HTTP/1.1\r"))
{
string high_scores = Build_HighScore_Page();
Send_And_Close_Connection(network_message_state.socket, high_scores);
}
else if (network_message_state.Message.Equals("GET /timeinfirst HTTP/1.1\r"))
{
string first_place_length = Build_First_Place_Length_Page();
Send_And_Close_Connection(network_message_state.socket, first_place_length);
}
else if (network_message_state.Message.Contains("scores"))
{
string split_character = "/";
string[] split_message = Regex.Split(network_message_state.Message, split_character);
if (split_message.Length == 4)
{
// grabs the player name from the network message, minus " HTTP"
string name = split_message[2].Substring(0, split_message[2].Length - 5);
string sent_player_database = Build_Player_Page(name);
Send_And_Close_Connection(network_message_state.socket, sent_player_database);
}
else if (split_message.Length == 8)
{
float mass;
int rank;
long start_time;
long end_time;
string name = split_message[2];
float.TryParse(split_message[3], out mass);
int.TryParse(split_message[4], out rank);
long.TryParse(split_message[5], out start_time);
long.TryParse(split_message[6].Substring(0, split_message[6].Length - 5), out end_time);
long total_time = end_time - start_time;
TimeSpan converted_time = TimeSpan.FromMilliseconds(total_time);
string time_played = string.Format("{0:D2}h:{1:D2}m:{2:D2}s:{3:D3}ms", converted_time.Hours, converted_time.Minutes, converted_time.Seconds, converted_time.Milliseconds);
// Insert networking message into sql table
AgarioDatabase database = new AgarioDatabase();
database.Insert_Player_Data(name, mass, rank, time_played);
database.Insert_HighScore_Data(name, mass, rank, time_played);
string sent_player_database = Build_Confirmation_Page(name);
Send_And_Close_Connection(network_message_state.socket, sent_player_database);
}
}
}
catch (Exception exception)
{
Console.WriteLine($"Something went wrong... this is a bad error message. {exception}");
}
}
/// <summary>
/// This handles the second phase of the connection protocol. After the player's
/// Circle has been received, the rest should be all the other
/// game objects (food, other players, heartbeats).
/// </summary>
/// <param name="obj"></param>
private void Get_World_Information(Preserved_Socket_State obj)
{
try
{
Calculate_Movement(out movement_X, out movement_Y); //Calculates the player's movement based on the mouse's position.
Networking.Send(obj.socket, $"(move,{movement_X},{movement_Y})"); //Sends the movement to the Server.
logger.LogDebug($"Sent movement: {movement_X} {movement_Y}");
world_circle = JsonConvert.DeserializeObject <Circle>(obj.Message);
if (world_circle.Type.ToString().Equals("heartbeat"))
{
this.Invalidate();
}
lock (game_world)
{
if (!game_world.Contains(world_circle.ID))
{
game_world.Add(world_circle.ID, world_circle);
}
else
{
if (!world_circle.Location.Equals(game_world[world_circle.ID])) //If the player location has changed from what's already stored
{
game_world.Remove(world_circle.ID); //Remove the old entry
game_world.Add(world_circle.ID, world_circle); //And add in the new one (which is the same "object" via the ID, but in a different location)
}
if (world_circle.GetMass <= 0 && world_circle.Type.ToString().Equals("food"))
{
game_world.Remove(world_circle.ID); //Remove the old entry
}
}
}
}
catch (Exception e)
{
logger.LogError($"Json convert error.");
}
try
{
Networking.await_more_data(obj);
}
catch (SocketException e)
{
// If a player has died, stop drawing the game scene and display game over screen
logger.LogInformation($"{player_circle.GetName} has been killed.");
connected = false;
isDead = true;
game_timer.Stop();
elapsed_time = game_timer.ElapsedMilliseconds;
// We are converting the time in milliseconds into a string of hour:min:seconds format to be added into the database
TimeSpan converted_time = TimeSpan.FromMilliseconds(elapsed_time);
string time_played = string.Format("{0:D2}h:{1:D2}m:{2:D2}s:{3:D3}ms", converted_time.Hours, converted_time.Minutes, converted_time.Seconds, converted_time.Milliseconds);
database.Insert_Player_Data(player_name, player_circle.GetMass, rank + 1, time_played);
database.Insert_HighScore_Data(player_name, player_circle.GetMass, rank + 1, time_played);
}
// If the user wishes to split, send the coordinates for split
if (can_split)
{
float destination_X = player_circle.Location.X + 100;
float destination_Y = player_circle.Location.Y + 100;
can_split = false;
Networking.Send(obj.socket, $"split,{destination_X},{destination_Y}");
}
obj.on_data_received_handler = Get_World_Information;
}
