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Overview

Colyseus currently have clients for the platforms:

• HTML5 (colyseus/colyseus.js)
• Unity3D (colyseus/colyseus-unity3d)
• Defold (colyseus/colyseus-defold)
• Haxe (colyseus/colyseus-hx)
• Cocos2d-X (colyseus/colyseus-cocos2d-x)
• Construct3 (colyseus/colyseus-construct3)

Need a client for another platform? Share your interest on the discussion board!

Connecting to the Server

JavaScript

import Colyseus from "colyseus.js";
// ...

let client = new Colyseus.Client("ws://localhost:2567");

C#

using Colyseus;
// ...

Client client = new Client("ws://localhost:2567");

lua

local ColyseusClient = require("colyseus.client")
// ...

local client = ColyseusClient.new("ws://localhost:2567");

Haxe

import io.colyseus.Client;
// ...

var client = new Client("ws://localhost:2567");

Methods

joinOrCreate (roomName: string, options: any)

Join an existing room or create a new one, by provided roomName and options.

Locked or private rooms are ignored by this method.

JavaScript

client.joinOrCreate("battle", {/* options */}).then(room => {
  console.log("joined successfully", room);
}).catch(e => {
  console.error("join error", e);
});

C#

try {
  Room<YourStateClass> room = await client.JoinOrCreate<YourStateClass>("battle", /* Dictionary of options */);
  Debug.Log("joined successfully");

} catch (ex) {
  Debug.Log("join error");
  Debug.Log(ex.Message);
}

lua

client:join_or_create("battle", {--[[options]]}, function(err, room)
  if (err ~= nil) then
    print("join error: " .. err)
    return
  end

  print("joined successfully")
end)

Haxe

client.joinOrCreate("battle", [/* options */], YourStateClass, function(err, room) {
  if (err != null) {
    trace("join error: " + err);
    return;
  }

  trace("joined successfully");
});

C++

client->joinOrCreate<YourStateClass>("battle", {/* options */}, [=](std::string err, Room<State>* room) {
  if (err != "") {
    std::cout << "join error: " << err << std::endl;
    return;
  }

  std::cout << "joined successfully" << std::endl;
});

create (roomName: string, options: any)

Creates a new room by provided roomName and options.

JavaScript

client.create("battle", {/* options */}).then(room => {
  console.log("joined successfully", room);
}).catch(e => {
  console.error("join error", e);
});

C#

try {
  Room<YourStateClass> room = await client.Create<YourStateClass>("battle", /* Dictionary of options */);
  Debug.Log("joined successfully");

} catch (ex) {
  Debug.Log("join error");
  Debug.Log(ex.Message);
}

lua

client:create("battle", {--[[options]]}, function(err, room)
  if (err ~= nil) then
    print("join error: " .. err)
    return
  end

  print("joined successfully")
end)

Haxe

client.create("battle", [/* options */], YourStateClass, function(err, room) {
  if (err != null) {
    trace("join error: " + err);
    return;
  }

  trace("joined successfully");
});

C++

client->create<YourStateClass>("battle", {/* options */}, [=](std::string err, Room<State>* room) {
  if (err != "") {
    std::cout << "join error: " << err << std::endl;
    return;
  }

  std::cout << "joined successfully" << std::endl;
});

join (roomName: string, options: any)

Joins an existing room by provided roomName and options.

Locked or private rooms are ignored by this method.

JavaScript

client.join("battle", {/* options */}).then(room => {
  console.log("joined successfully", room);
}).catch(e => {
  console.error("join error", e);
});

C#

try {
  Room<YourStateClass> room = await client.Join<YourStateClass>("battle", /* Dictionary of options */);
  Debug.Log("joined successfully");

} catch (ex) {
  Debug.Log("join error");
  Debug.Log(ex.Message);
}

lua

client:join("battle", {--[[options]]}, function(err, room)
  if (err ~= nil) then
    print("join error: " .. err)
    return
  end

  print("joined successfully")
end)

Haxe

client.join("battle", [/* options */], YourStateClass, function(err, room) {
  if (err != null) {
    trace("join error: " + err);
    return;
  }

  trace("joined successfully");
});

C++

client->join<YourStateClass>("battle", {/* options */}, [=](std::string err, Room<State>* room) {
  if (err != "") {
    std::cout << "join error: " << err << std::endl;
    return;
  }

  std::cout << "joined successfully" << std::endl;
});

joinById (roomId: string, options: any)

Joins an existing room by its roomId. Private rooms can be joined by id.

JavaScript

client.joinById("KRYAKzRo2", {/* options */}).then(room => {
  console.log("joined successfully", room);
}).catch(e => {
  console.error("join error", e);
});

C#

try {
  Room<YourStateClass> room = await client.JoinById<YourStateClass>("battle", /* Dictionary of options */);
  Debug.Log("joined successfully");

} catch (ex) {
  Debug.Log("join error");
  Debug.Log(ex.Message);
}

lua

client:join_by_id("battle", {--[[options]]}, function(err, room)
  if (err ~= nil) then
    print("join error: " .. err)
    return
  end

  print("joined successfully")
end)

Haxe

client.joinById("battle", [/* options */], YourStateClass, function(err, room) {
  if (err != null) {
    trace("join error: " + err);
    return;
  }

  trace("joined successfully");
});

C++

client->joinById<YourStateClass>("battle", {/* options */}, [=](std::string err, Room<State>* room) {
  if (err != "") {
    std::cout << "join error: " << err << std::endl;
    return;
  }

  std::cout << "joined successfully" << std::endl;
});

Tip

Use getAvailableRooms() to retrieve a list of roomId's available for joining.

reconnect (roomId: string, sessionId: string)

Reconnects the client into a room he was previously connected with.

Must be used along with allowReconnection() in the server-side.

JavaScript

let room = client.reconnect("wNHTX5qik", "SkNaHTazQ").then(room => {
  console.log("joined successfully", room);
}).catch(e => {
  console.error("join error", e);
});

C#

try {
  Room<YourStateClass> room = await client.Reconnect<YourStateClass>("wNHTX5qik", "SkNaHTazQ");
  Debug.Log("joined successfully");

} catch (ex) {
  Debug.Log("join error");
  Debug.Log(ex.Message);
}

lua

client:reconnect("wNHTX5qik", "SkNaHTazQ", function(err, room)
  if (err ~= nil) then
    print("join error: " .. err)
    return
  end

  print("joined successfully")
end)

Haxe

client.reconnect("wNHTX5qik", "SkNaHTazQ", YourStateClass, function(err, room) {
  if (err != null) {
    trace("join error: " + err);
    return;
  }

  trace("joined successfully");
});

C++

client->reconnect<YourStateClass>("wNHTX5qik", "SkNaHTazQ", [=](std::string err, Room<State>* room) {
  if (err != "") {
    std::cout << "join error: " << err << std::endl;
    return;
  }

  std::cout << "joined successfully" << std::endl;
});

getAvailableRooms (roomName?: string)

List all available rooms to connect. Locked and private rooms won't be listed. roomName is optional.

JavaScript

client.getAvailableRooms("battle").then(rooms => {
  rooms.forEach((room) => {
    console.log(room.roomId);
    console.log(room.clients);
    console.log(room.maxClients);
    console.log(room.metadata);
  });
}).catch(e => {
  console.error(e);
});

C#

try {
  var rooms = await client.GetAvailableRooms("battle");
  for (int i = 0; i < rooms.Length; i++) {
    Debug.Log(rooms[i].roomId);
    Debug.Log(rooms[i].clients);
    Debug.Log(rooms[i].maxClients);
    Debug.Log(rooms[i].metadata);
  }
} catch (ex) {
  Debug.Log(ex.Message)
}

/**
 * Retrieving custom metadata
 */
[Serializable]
class Metadata
{
    public string mode;
    public string name;
}

[Serializable]
class CustomRoomAvailable : RoomAvailable
{
    public Metadata metadata;
}

var rooms = await client.GetAvailableRooms<CustomRoomAvailable>("battle");
Debug.Log(rooms[0].metadata.mode);

lua

client:get_available_rooms("battle", function(err, rooms)
  if (err) then
    console.error(err);
    return
  end

  for i, rooms in pairs(rooms) do
    print(rooms[i].roomId)
    print(rooms[i].clients)
    print(rooms[i].maxClients)
    print(rooms[i].metadata)
  end
end);

Haxe

client.getAvailableRooms("battle", function(err, rooms) {
  if (err != null) {
    trace(err);
    return;
  }

  for (room in rooms) {
    trace(room.roomId);
    trace(room.clients);
    trace(room.maxClients);
    trace(room.metadata);
  }
});

C++

client.getAvailableRooms("battle", [=](std::string err, nlohmann::json rooms) {
  if (err != "") {
    std::cout << "error: " << err << std::endl;
    return;
  }

  // rooms
});

consumeSeatReservation (reservation)

Join a room by consuming a seat reservation.

Advanced usage

See Match-maker API to see how to retrieve the seat reservation data.

JavaScript

client.consumeSeatReservation(reservation).then(room => {
  console.log("joined successfully", room);
}).catch(e => {
  console.error("join error", e);
});

C#

try {
  Room<YourStateClass> room = await client.ConsumeSeatReservation<YourStateClass>(reservation);
  Debug.Log("joined successfully");

} catch (ex) {
  Debug.Log("join error");
  Debug.Log(ex.Message);
}

lua

client:consume_seat_reservation(reservation, function(err, room)
  if (err ~= nil) then
    print("join error: " .. err)
    return
  end

  print("joined successfully")
end)

Haxe

client.consumeSeatReservation(reservation, YourStateClass, function(err, room) {
  if (err != null) {
    trace("join error: " + err);
    return;
  }

  trace("joined successfully");
});

C++

client->consumeSeatReservation<YourStateClass>(reservation, [=](std::string err, Room<State>* room) {
  if (err != "") {
    std::cout << "join error: " << err << std::endl;
    return;
  }

  std::cout << "joined successfully" << std::endl;
});