/// <summary>
/// Calculates the Y velocity accounting for jumping and
/// animates accordingly.
/// </summary>
/// <remarks>
/// During the accent of a jump, the Y velocity is completely
/// overridden by a power curve. During the decent, gravity takes
/// over. The jump velocity is controlled by the jumpTime field
/// which measures time into the accent of the current jump.
/// </remarks>
/// <param name="velocityY">
/// The player's current velocity along the Y axis.
/// </param>
/// <returns>
/// A new Y velocity if beginning or continuing a jump.
/// Otherwise, the existing Y velocity.
/// </returns>
protected float DoJump(float velocityY, GameTime gameTime)
{
// If the player wants to jump
if (IsJumping)
{
// Begin or continue a jump
if ((!WasJumping && IsOnGround) || JumpTime > 0.0f)
{
if (JumpTime == 0)
JumpDirection = GravityDirection; //Set the direction this jump started from
if (JumpTime == 0 && IsMine)
{
//Send message we are now jumping
PlayerStateMessage msg = new PlayerStateMessage(this);
msg.IsJumping = true;
Game.NetManager.Send(msg);
}
JumpTime += (float)gameTime.ElapsedGameTime.TotalSeconds; //Incriment jump timer
}
//If we are in the ascent of the jump
if (0.0f < JumpTime && JumpTime <= MaxJumpTime)
{
//Fully override the vertical velocity with a power curve that gives players more control over the top of the jump
velocityY = (JumpDirection == GravityDirection.Up || JumpDirection == GravityDirection.Left ? -1 : 1) * (JumpLaunchVelocity * (1.0f - (float)Math.Pow(JumpTime / MaxJumpTime, JumpControlPower)));
}
else
{
if (JumpTime > 0 && IsMine)
{
//Tell others we are falling now
PlayerStateMessage msg = new PlayerStateMessage(this);
msg.IsJumping = false;
Game.NetManager.Send(msg);
}
JumpTime = 0.0f; // Reached the apex of the jump
IsJumping = false;
}
}
else
{
//Tell others we have landed
if (JumpTime > 0 && IsMine)
Game.NetManager.Send(new PlayerStateMessage(this));
// Continues not jumping or cancels a jump in progress
JumpTime = 0.0f;
}
WasJumping = IsJumping;
return velocityY;
}
/// <summary>
/// Handles a data message (The bulk of all messages recieved, containing player movements, block places, etc)
/// </summary>
private void HandleDataMessage(NetIncomingMessage im)
{
MessageTypes messageType = (MessageTypes)im.ReadByte(); //Find the type of data message sent
switch (messageType)
{
case MessageTypes.Lobby: //Lobby list packet
{
if (Game.CurrentGameState == GameState.Lobby)
{
LobbyScreen screen = MainWindow.ScreenManager.Current as LobbyScreen;
LobbyMessage msg = new LobbyMessage(im);
screen.Name = msg.ServerName;
screen.Description = msg.Description;
screen.Intro = msg.Intro;
screen.Online = msg.Online;
screen.Rooms = msg.Rooms;
screen.Lobby.LoadRooms();
}
break;
}
case MessageTypes.PlayerJoin: //Player join message
{
PlayerJoinMessage user = new PlayerJoinMessage(im);
//Add player to map
Map.Players.Add(new Player(Map, Map.Spawn, user.Username, user.ID) { Tint = user.Color });
//Add user to userlist
(MainWindow.ScreenManager.Current as GameScreen).PlayerList.Items.Add(user.Username);
if (user.ID != Game.MyID && recievedInit) //Broadcast join message to chat
{
(MainWindow.ScreenManager.Current as GameScreen).SystemChat(user.Username + " [color:LightGray]has[/color] [color:LightGreen]joined.[/color]");
}
if (user.Me)
{
//Let game know of it's own player
Game.MyID = user.ID;
Game.MyIndex = (byte)Map.Players.IndexOf(Map.Players.First(x => x.ID == Game.MyID));
Game.Me.Tint = Game.MyColor;
}
break;
}
case MessageTypes.PlayerLeave: //Player leave message
{
PlayerLeaveMessage user = new PlayerLeaveMessage(im);
//Remove player
if (user.ID != Game.MyID)
{
Player player = (Player)Map.PlayerFromID(user.ID);
Map.Players.Remove((Player)Map.PlayerFromID(user.ID));
(MainWindow.ScreenManager.Current as GameScreen).PlayerList.Items.Remove(player.Username);
(MainWindow.ScreenManager.Current as GameScreen).SystemChat(player.Username + " [color:LightGray]has[/color] [color:IndianRed]left.[/color]");
//Rebuild indexes
for (int i = 0; i < Map.Players.Count; i++)
{
Map.Players[i].Index = i;
if (Map.Players[i].ID == Game.MyID)
Game.MyIndex = (byte)i;
}
}
break;
}
case MessageTypes.PlayerStatus: //Player move message
{
if (Game.CurrentGameState == GameState.Game)
{
PlayerStateMessage user = new PlayerStateMessage(im);
Player player = (Player)Map.PlayerFromID(user.ID);
player.SimulationState.Position = user.Position.ToVector2();
player.SimulationState.Velocity = user.Velocity.ToVector2();
player.SimulationState.Movement = user.Movement.ToVector2();
if (!recievedInit) //If we have not recieved init (meaning we are not in game yet), set the initial positions directly so interpolation doesn't mess with them
player.DisplayState.Position = player.SimulationState.Position;
player.VirtualJump = user.IsJumping;
}
break;
}
case MessageTypes.Block: //Block place message
{
if (Game.CurrentGameState == GameState.Game)
{
BlockMessage msg = new BlockMessage(im);
BlockType block = BlockType.FromID(msg.BlockID);
if (Map.CanPlaceBlock(msg.X, msg.Y, msg.Z, block))
Map.Tiles[msg.X, msg.Y, msg.Z].Block = block;
}
break;
}
case MessageTypes.PlayerSmiley: //Smiley change message
{
if (Game.CurrentGameState == GameState.Game)
{
PlayerSmileyMessage msg = new PlayerSmileyMessage(im);
Player p = (Player)Map.PlayerFromID(msg.ID);
p.Smiley = msg.Smiley;
}
break;
}
case MessageTypes.PlayerMode: //Player mode change message
{
if (Game.CurrentGameState == GameState.Game)
{
PlayerModeMessage mode = new PlayerModeMessage(im);
Map.PlayerFromID(mode.ID).Mode = (PlayerMode)mode.Mode;
}
break;
}
case MessageTypes.Chat: //Chat message
{
if (Game.CurrentGameState == GameState.Game)
{
ChatMessage chat = new ChatMessage(im);
(MainWindow.ScreenManager.Current as GameScreen).AddChat(Map.PlayerFromID(chat.ID).Username, chat.Message);
}
break;
}
case MessageTypes.Init: //Initialization message with world data
{
Game.Map = new Bricklayer.Client.World.Map(game, 1, 1);
InitMessage msg = new InitMessage(im, Map);
Game.Map.Minimap = new Minimap(Game.Map, msg.Width, msg.Height) { Position = new Microsoft.Xna.Framework.Vector2(8, 8) };
Game.Map.CreateCamera();
Game.CurrentGameState = GameState.Game;
(MainWindow.ScreenManager.Current as GameScreen).Show();
(MainWindow.ScreenManager.Current as GameScreen).SystemChat("Connected to [color:LightGray]" + Game.Host + ":" + Game.Port + "[/color]");
recievedInit = true;
break;
}
}
}
/// <summary>
/// Handles all actions for recieving data messages (Such as movement, block placing, etc)
/// </summary>
/// <param name="inc">The incoming message</param>
private void ProcessDataMessage(NetIncomingMessage inc)
{
Player sender = Server.PlayerFromRUI(inc.SenderConnection.RemoteUniqueIdentifier, true);
Map map = null;
if (sender != null)
map = (Map)sender.Map;
MessageTypes type = (MessageTypes)Enum.Parse(typeof(MessageTypes), inc.ReadByte().ToString());
switch (type)
{
//When a player request to recieve a message
case MessageTypes.Request:
{
MessageTypes request = new RequestMessage(inc).RequestType;
//Request to recieve lobby data
if (request == MessageTypes.Lobby)
{
List<LobbySaveData> rooms = new List<LobbySaveData>();
foreach (Map m in Maps)
{
rooms.Add(LobbySaveData.FromMap(m));
}
LobbyMessage msg = new LobbyMessage(Server.Config.Name, Server.Config.Decription, Server.Config.Intro, NetworkManager.NetServer.ConnectionsCount, rooms);
NetManager.Send(msg, inc.SenderConnection);
}
break;
}
//When a player exits to the lobby
case MessageTypes.PlayerLeave:
{
PlayerLeaveMessage user = new PlayerLeaveMessage(inc);
user.ID = sender.ID;
Log.WriteLine(LogType.Room, "{0} has left: {1}", sender.Username, sender.Map.Name);
//Remove player
map.Players.Remove(sender);
RebuildIndexes(map);
//Send to players
NetManager.Broadcast(sender.Map, new PlayerLeaveMessage(sender.ID));
IO.SaveMap((Bricklayer.Server.World.Map)sender.Map);
sender = null;
break;
}
//When a player moves
case MessageTypes.PlayerStatus:
{
PlayerStateMessage state = new PlayerStateMessage(inc);
state.ID = sender.ID;
//Clamp position in bounds
state.Position = new Point((int)MathHelper.Clamp(state.Position.X, Tile.Width, (map.Width * Tile.Width) - (Tile.Width * 2)), (int)MathHelper.Clamp(state.Position.Y, Tile.Height, (map.Height * Tile.Height) - (Tile.Height * 2)));
sender.SimulationState.Position = state.Position.ToVector2();
sender.SimulationState.Velocity = state.Velocity.ToVector2();
sender.SimulationState.Movement = state.Movement.ToVector2();
sender.IsJumping = state.IsJumping;
NetManager.BroadcastExcept(state, sender);
break;
}
//When a player places a block
case MessageTypes.Block:
{
BlockMessage state = new BlockMessage(inc);
BlockType block = BlockType.FromID(state.BlockID);
//Verify Block (Make sure it is in bounds and it has changed, no use sending otherwise)
//TODO: Punish players spamming invalid data (Because official client should never send it)
if (map.InBounds(state.X, state.Y, state.Z) && map.Tiles[state.X, state.Y, state.Z].Block.ID != block.ID)
{
map.Tiles[state.X, state.Y, state.Z].Block = block;
NetManager.Broadcast(sender.Map, state);
}
break;
}
//When a player sends a chat message
case MessageTypes.Chat:
{
ChatMessage chat = new ChatMessage(inc);
chat.ID = sender.ID;
//Verify length
if (chat.Message.Length > ChatMessage.MaxLength)
chat.Message = chat.Message.Truncate(ChatMessage.MaxLength);
NetManager.BroadcastExcept(chat, sender);
//Log message
Log.WriteLine(LogType.Chat, ConsoleColor.Gray, "<{0}> {1}", sender.Username, chat.Message);
break;
}
//When a player changes smiley
case MessageTypes.PlayerSmiley:
{
PlayerSmileyMessage smiley = new PlayerSmileyMessage(inc);
smiley.ID = sender.ID;
if (sender.Smiley != smiley.Smiley)
{
sender.Smiley = smiley.Smiley;
NetManager.BroadcastExcept(smiley, sender);
}
break;
}
//When a player changes mode (Ex: godmode to normal
case MessageTypes.PlayerMode:
{
PlayerModeMessage mode = new PlayerModeMessage(inc);
mode.ID = sender.ID;
if (sender.Mode != mode.Mode)
{
sender.Mode = mode.Mode;
NetManager.BroadcastExcept(mode, sender);
}
break;
}
//When a player requests to join a room
case MessageTypes.JoinRoom:
{
if (sender == null) //If the sender isn't null, then they are already in a room
{
JoinRoomMessage msg = new JoinRoomMessage(inc);
int newMap = Maps.IndexOf(Server.MapFromID(msg.ID));
LoginMessage login = Server.Logins[inc.SenderConnection.RemoteUniqueIdentifier]; //Fetch stored login from dictionary
Maps[newMap].Players.Add(new Player(Maps[newMap], Maps[newMap].Spawn, login.Username, inc.SenderConnection.RemoteUniqueIdentifier, Server.FindEmptyID(Maps[newMap])) { Tint = login.Color });
sender = Server.PlayerFromRUI(inc.SenderConnection.RemoteUniqueIdentifier, true);
NetManager.Send(new InitMessage(sender.Map), sender);
//Send message to player notifing he is connected and ready
NetManager.Send(new PlayerJoinMessage(sender.Username, sender.ID, true, sender.Tint), sender);
//Log message
Log.WriteLine(LogType.Room, "{0} joined: {1}", login.Username, Maps[newMap].Name);
//Send message to everyone notifying of new user
NetManager.BroadcastExcept(new PlayerJoinMessage(sender.Username, sender.ID, false, sender.Tint), sender);
//Let new player know of all existing players and their states (Mode, Position, Smiley)
foreach (Player player in sender.Map.Players)
{
if (player.ID != sender.ID)
{
NetManager.Send(new PlayerJoinMessage(player.Username, player.ID, false, player.Tint), sender);
NetManager.Send(new PlayerStateMessage(player), sender);
if (player.Mode != PlayerMode.Normal)
NetManager.Send(new PlayerModeMessage(player), sender);
if (player.Smiley != SmileyType.Default)
NetManager.Send(new PlayerSmileyMessage(player, player.Smiley), sender);
}
}
}
break;
}
//When a player requests to make a room
case MessageTypes.CreateRoom: //If the sender isn't null, then they are already in a room
{
if (sender == null)
{
CreateRoomMessage msg = new CreateRoomMessage(inc);
Map newMap = Server.CreateMap(msg.Name, msg.Description);
LoginMessage login = Server.Logins[inc.SenderConnection.RemoteUniqueIdentifier]; //Fetch stored login from dictionary
newMap.Players.Add(new Player(newMap, newMap.Spawn, login.Username, inc.SenderConnection.RemoteUniqueIdentifier, Server.FindEmptyID(newMap)) { Tint = login.Color });
sender = Server.PlayerFromRUI(inc.SenderConnection.RemoteUniqueIdentifier, true);
//Send message to player notifing he is connected and ready
NetManager.Send(new InitMessage(sender.Map), sender);
NetManager.Send(new PlayerJoinMessage(sender.Username, sender.ID, true, sender.Tint), sender);
//Log message
Log.WriteLine(LogType.Room, "{0} created room: {1}", login.Username, newMap.Name);
}
break;
}
}
}