Extensibility (NxN board, multiple players) in LLD - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does extensibility mean in the context of designing a game board system?

Extensibility means designing the system so it can easily support changes like different board sizes (NxN) or more players without major rewrites.

beginner

Why is using a flexible data structure important for an NxN board?

A flexible data structure like a 2D array or list of lists allows the board size to change dynamically, supporting any NxN dimension.

intermediate

How can you design player management to support multiple players easily?

Use a player list or map to store player info and turn order, so adding or removing players is simple and does not affect core logic.

intermediate

What is a key benefit of separating game rules from the board and player data?

Separating rules allows changing or adding new rules without changing the board or player code, making the system more extensible.

advanced

Name one challenge when extending a game to support multiple players and how to handle it.

Managing turn order is a challenge; handle it by implementing a clear turn rotation system that cycles through all players fairly.

What data structure is best for representing an NxN game board?

A Stack

B Single integer variable

C 2D array or list of lists

D Linked list

A 2D array or list of lists naturally represents rows and columns of an NxN board.

To support multiple players, you should store player info in:

A A list or map of players

B A fixed variable for one player

C A single string

D A boolean flag

A list or map allows dynamic management of multiple players.

Separating game rules from board data helps to:

A Reduce performance drastically

B Make the system less flexible

C Increase code duplication

D Make the system more extensible

Separation of concerns improves extensibility by isolating changes.

Which approach helps manage turn order for multiple players?

A Randomly pick a player each turn

B Use a turn rotation system cycling through players

C Only allow one player to play always

D Ignore turn order

A turn rotation system ensures fair and predictable player turns.

Why is designing for extensibility important in system design?

A To make future changes easier and less costly

B To make the system complex and hard to maintain

C To avoid adding new features

D To prevent any changes after initial design

Extensibility allows easy adaptation to new requirements.

Explain how you would design a game system to support an NxN board and multiple players.

Think about how to keep the system open for changes.

What are the main challenges when extending a simple game to support multiple players and variable board sizes?

Consider data structures and game flow.