Matchmaking

Matchmaking will help you to create matches!

Installing

npm i matchmaking

How to use

####LobbyMaker

With this class you can create, list and join lobbies They can have password or be private (joined by name)

const { LobbyMaker } = require('matchmaking');

function runGame(players) {
	console.log("Game started with:");
	console.log(players);
}

function getPlayerKey(player){
	return player.id;
}

let lobby = new LobbyMaker(runGame, getPlayerKey);

let player1 = { id:20 }
let player2 = { id:21 }

// Create a room
let id = lobby.createRoom(player1, "Room 0");

// Other player joined the room
lobby.joinRoom(id, player2);

// Start game
lobby.start(id);

// Game started with:
// [ {id:20}, {id:21} ]

####FifoMatchMaker

This one is really simple, just push players to the queue, and games will be started automatically!

const { FifoMatchmaker } = require('matchmaking');

function runGame(players) {
	console.log("Game started with:");
	console.log(players);
}

let mm = new FifoMatchmaker(runGame, { checkInterval: 2000 });

let player1 = { id:1 }
let player2 = { id:2 }

// Players join match queue
mm.push(player1);
mm.push(player2);

// When there are enough players, runGame will be called

// Game started with:
// [ {id:1}, {id:2} ]

Api

Player

• The player will be mentioned a lot here
• By player i mean a generic object
  • As use in the example above, just a plain object with an id
  • The player can be anything and depends on your project/game

FifoMatchmaker

• constructor(resolver, getKey, options)
  • resolver(players) - A function that will be called whenever there are enough players to start a game
    • players - a array with all the players in that game
  • getKey(player) - A function that will extract the id of a player
    • player - The player whose id will be extrected
  • options - [OPTIONAL] - A object with settings for the matchmaker
    • checkInterval - The interval in milliseconds to try to start new games
    • maxMatchSize - Maximum number of players in a room
    • minMatchSize - Minimum number of players in a room
• push(player)
  • parameters
    • player - The object containing all player information
  • return
    • void
• leaveQueue(player)
  • parameters
    • player - The player with its ID
  • return
    • void

LobbyMaker

• constructor(resolver, options)
  • parameters
    • resolver(players) - A function that will be called manualy or automatically when there are enough players to start a game, if this options hass been set
      • players - a array with all the players in that game
    • getKey(player) - A function that given a player, returns its unique identifier (id)
• createRoom(player, roomName, options)
  • parameters
    • player - The object containing all player information
    • roomName - The name to be displayed in room listing
    • options - [OPTIONAL] - A object with settings for the matchmaker
      • private - Should this lobby appear in public listing?
      • password - If set, players will have to use this password to join the lobby, leavy empty to create a open lobby
      • maxLobbySize - Maximum number of players in a room
      • minLobbySize - Minimum number of players in a room
      • autoStartWithMinSize - If true, the lobby will autostart when MinSize is reached
      • autoStartWithMaxSize - If true, the lobby will autostart when lobby is full is reached
  • return
    • The unique room Identifier (number)
• leaveRoom = (roomId, player)
  • parameters
    • roomId - The room to be leaved
    • player - The player that will leave the room
• deleteRoom(roomId)
  • parameters
    • roomId - The room id that will be deleted
  • return
    • void
• listRooms()
  • return
    • RoomInfo[] - A array of RoomInfo objects, each containing: {id, name, passwordIsRequired, currentPlayers, MaxPlayers}
• joinRoom(roomId, newPlayer, password)
  • parameters
    • roomId - Room to be joined
    • newPlayer - the player object that will join
    • password - [OPTIONAL] - If the room require password
• startGame(roomId)
  • parameters
    • roomId - The room to start the game, this will call the resolver function passed in constructor
  • return - void

Error handling

• All functions that can return error, will do returning e Error object
  • To check for errors do the followig
    • mehtod() instanceof Error
    • Error class documentation

Authors

• Lui Franco Rocha

License

This project is licensed under the MIT License - see the LICENSE.md file for details