Lobby and matchmaking basics in Unity - Mini Project: Build & Apply

Lobby and Matchmaking Basics

📖 Scenario: You are creating a simple multiplayer game lobby where players can join and be matched into a game room. This is a common feature in online games where players wait in a lobby before starting a match.

🎯 Goal: Build a basic lobby system that stores player names, sets a maximum number of players per room, matches players into rooms, and displays the matched rooms.

📋 What You'll Learn

Create a list to store player names

Create a variable for maximum players per room

Write logic to group players into rooms based on the max players

Print the list of rooms with their players

💡 Why This Matters

🌍 Real World

Game developers use lobbies and matchmaking to organize players into game sessions smoothly.

💼 Career

Understanding lobby and matchmaking basics is essential for multiplayer game programming roles.

1

Create the player list

Create a List<string> called players and add these exact player names: "Alice", "Bob", "Charlie", "Diana", "Ethan", "Fiona".

Unity

# Create a List called players and add the given names
// Your code here

Need a hint?

Use new List<string> { ... } to create the list with the exact player names.

2

Set maximum players per room

Create an int variable called maxPlayersPerRoom and set it to 3.

Unity

using System.Collections.Generic;

List players = new List { "Alice", "Bob", "Charlie", "Diana", "Ethan", "Fiona" };

// Create an int variable maxPlayersPerRoom and set it to 3
// Your code here

Need a hint?

Just declare an integer variable with the exact name and value.

3

Group players into rooms

Create a List<List<string>> called rooms. Use a for loop with variable i to group players from players into rooms of size maxPlayersPerRoom. Add each group as a new list to rooms.

Unity

using System.Collections.Generic;

List players = new List { "Alice", "Bob", "Charlie", "Diana", "Ethan", "Fiona" };

int maxPlayersPerRoom = 3;

// Create a List> called rooms
// Use a for loop with i to group players into rooms
// Your code here

Need a hint?

Use players.GetRange(i, Math.Min(maxPlayersPerRoom, players.Count - i)) inside the loop to get each room's players.

4

Display the rooms and players

Use a for loop with variable roomIndex to print each room number starting from 1. Inside it, use a foreach loop with variable player to print each player's name in that room. Use System.Console.WriteLine for printing.

Unity

using System.Collections.Generic;

List players = new List { "Alice", "Bob", "Charlie", "Diana", "Ethan", "Fiona" };

int maxPlayersPerRoom = 3;

List> rooms = new List>();

for (int i = 0; i  room = players.GetRange(i, System.Math.Min(maxPlayersPerRoom, players.Count - i));
    rooms.Add(room);
}

// Print each room and its players
// Your code here

Need a hint?

Use nested loops: outer loop for rooms, inner loop for players. Use Console.WriteLine with string interpolation to print.