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Unity Best Practices

Design principles, design patterns, coding challenges, and more!

Details

Here is a complete overview of Best Practices and related topics for Unity.

The repo is complete with code samples.

Enjoy!

Related Repos

Name	Description	Educational Use	Production Use	Link
Unity Best Practices	Repo with best practices for Unity. It covers project structure and code standards.	✅	❌	(See below)
Unity Project Template	Template showcasing best practices and coding standards for Unity projects.	❌	✅	link

Configuration
Design Principles
Design Patterns
Features
Tooling
Credits

Getting Started

Instructions

Download this repo (*.zip or *.git)
Download the Unity Editor (See Unity Version below)
Open the Unity Hub
Unity Hub: Click the 'Add' button
Unity Hub: Choose the Unity folder from the repo
Unity Hub: Choose the project from the project list to open the Unity Editor
Unity Editor: Open one of the included Scenes
Unity Editor: Play the Scene
Enjoy!

Configuration

Documentation

ReadMe.md - The primary documentation for this repo

Configuration

Unity Target - Standalone MAC/PC
Unity Version - Use this Version
Unity Rendering - Universal Render Pipeline (URP)
Unity Aspect Ratio - Game View 10x16

Structure

Unity - Open this folder in the Unity Editor

Dependencies

Various - Already included via Unity Package Manager as this Version

Design Principles

Theory

S.O.L.I.D. Principles make software designs more understandable, easier to maintain and easier to extend. As a software engineer, these 5 principles are essential to know! (See <a href="https://itnext.io/solid-principles-explanation-and-examples-715b975dcad4">ITNext.io</a>)

List

Name	Description	Code Sample Complete
Single Responsibility	One reason to change.	✅
Open/Closed	Open for extension, closed for modification.	✅
Liskov Substitution	Subtypes must be substitutable for their base types.	✅
Interface Segregation	No client should be forced to depend on interfaces they do not use.	✅
Dependency Inversion	High-level modules should not depend on low-level ones; both should depend on abstractions.	✅

Design Patterns

Theory

These patterns provide solutions to common design problems and are a foundational part of software design knowledge. There are 3 types.

Behavioral Patterns - Design patterns to deal with object-object communication. (See <a href="https://en.wikipedia.org/wiki/Behavioral_pattern">Wikipedia</a>)
Creational Patterns - Design patterns to deal with object creation. (See <a href="https://en.wikipedia.org/wiki/Creational_pattern">Wikipedia</a>)
Structural Patterns - Design patterns to deal with object-object relationships. (See <a href="https://en.wikipedia.org/wiki/Structural_pattern">Wikipedia</a>)

Diagram

List

Type	Name	Description	Code Sample Complete

Behavioral
	Chain of Responsibility	Passes request among a chain of objects.	❌
	Command	Encapsulates a request as an object.	✅
	Interpreter	Provides a language interpreter.	❌
	Iterator	Sequentially access elements in a collection.	❌
	Mediator	Centralized external communications.	❌
	Memento	Capture and restore object's internal state.	✅
	Observer	Notify changes to its state.	❌
	State	Alter behavior when its state changes.	✅
	Strategy	Encapsulates algorithms using strategy pattern.	✅
	Template Method	Defer exact steps to subclasses.	❌
	Visitor	Add new operations without altering a class.	❌

Creational
	Abstract Factory	Creates families of related objects.	❌
	Builder	Separates object construction from its representation.	✅
	Factory Method	Creates objects without specifying the exact class to create.	✅
	Prototype	Clone or copy initialized instances.	❌
	Singleton	Ensures a class has one instance.	✅

Structural
	Adapter	Matches interfaces of different classes.	❌
	Bridge	Separates an object’s interface from its implementation.	❌
	Composite	Tree structure of simple and composite objects.	❌
	Decorator	Adds responsibilities to objects dynamically.	✅
	Facade	Simplified interface to a subsystem.	✅
	Flyweight	Reuses objects by sharing common state.	✅
	Proxy	Represents another object.	❌

Features

Editor Scripting - Unity lets you extend the editor with your own custom inspectors and Editor Windows and you can define how properties are displayed in the inspector with custom Property Drawers. See <a href="https://docs.unity3d.com/Manual/ExtendingTheEditor.html">Unity Docs</a> for more.

Tooling

Unit Testing - Software testing where individual units/ components of a software are tested. The purpose is to validate that each unit of the software performs as designed. A unit is the smallest testable part of any software. See <a href="https://docs.unity3d.com/Manual/testing-editortestsrunner.html">Unity Docs</a> for more.

Credits

Created By

Samuel Asher Rivello
Over 25 years XP with game development (2024)
Over 11 years XP with Unity (2024)

Contact

Twitter - <a href="https://twitter.com/srivello/">@srivello</a>
Git - <a href="https://github.com/SamuelAsherRivello/">Github.com/SamuelAsherRivello</a>
Resume & Portfolio - <a href="http://www.SamuelAsherRivello.com">SamuelAsherRivello.com</a>
LinkedIn - <a href="https://Linkedin.com/in/SamuelAsherRivello">Linkedin.com/in/SamuelAsherRivello</a> <--- Say Hello! :)

License