Board and piece hierarchy in LLD - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the purpose of a 'Board' class in a board game design?

The 'Board' class represents the playing area where pieces are placed and moved. It manages the layout, tracks piece positions, and enforces rules related to the board's state.

beginner

Why use a base 'Piece' class in a board game hierarchy?

A base 'Piece' class provides common properties and behaviors for all game pieces, such as position and movement rules. It allows easy extension for specific piece types while keeping code organized.

intermediate

How does inheritance help in designing different game pieces?

Inheritance lets specific pieces inherit common features from a base class and add unique behaviors. For example, a 'Knight' piece can inherit from 'Piece' and implement its special move logic.

intermediate

What role does encapsulation play in board and piece design?

Encapsulation hides the internal details of board and piece classes, exposing only necessary methods. This protects the game state from unintended changes and simplifies maintenance.

advanced

How can composition be used alongside inheritance in board game design?

Composition allows a piece to have components like movement strategies or attack behaviors as separate objects. This adds flexibility beyond inheritance by mixing behaviors dynamically.

What does the 'Board' class typically manage in a board game?

A The layout and positions of pieces

B The player scores

C The user interface colors

D The network connections

The Board class manages the layout and tracks where pieces are placed on the board.

Which OOP concept allows different pieces to share common features?

A Inheritance

B Encapsulation

C Abstraction

D Polymorphism

Inheritance lets different pieces share common properties and methods from a base class.

Why is encapsulation important in piece design?

A To make the UI colorful

B To hide internal details and protect game state

C To allow direct access to piece data

D To speed up the game

Encapsulation hides internal details, preventing unintended changes to the game state.

What is a benefit of using composition in piece behavior?

A Forcing all pieces to behave the same

B Reducing code readability

C Mixing behaviors dynamically

D Making the board smaller

Composition allows combining different behaviors dynamically for flexibility.

Which class would most likely contain the rules for piece movement?

A GameController

B Board

C Player

D Piece

The Piece class or its subclasses define how each piece moves.

Explain how you would design a board and piece hierarchy for a simple chess game.

Think about what each class should know and do.

Describe the advantages of combining inheritance and composition in game piece design.

Consider how pieces can share and differ in behavior.