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SOLID Programming

Interface Segregation Principle in Unity

Edward Falzon

Programming of any kind, including in game-development, can get complicated as the size and scope of a project increase. Investigating bugs and expanding the code with new functionality can be almost impossible if the code-structure is not well-thought-out.

In this one-hour, project-based course, we will cover the fourth principle of "SOLID" programming: Interface Segregation Principle ("ISP") states that classes should not be required to implement

methods or properties it doesn't use. This means a monolithic interface is usually inefficient and should be broken into its functional parts. In the project, we will create some "typical" code that is fairly common in game-development, and then restructure it to become compliant with ISP.

This project is part four of a five-part series on SOLID Programming principles, which are:

- Single Responsibility

- Open-Closed

- Liskov's Substitution

- Interface Segregation (this guided project)

- Dependency Inversion

Each of these guided projects stands on its own, but for a full understanding of good coding practices, completing all five guided projects (in order) is recommended.

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Reviews summary

Isp in unity: concise practical application

According to learners, this course provides a highly concise and practical explanation of the Interface Segregation Principle (ISP), specifically tailored for Unity game development. Students frequently highlight the project-based learning and clear, direct explanations which facilitate immediate application of the concepts. While many found it extremely helpful for code refactoring and improving design, some suggested it might be too brief or basic for those already familiar with ISP or seeking more advanced, complex scenarios. Overall, it's considered an excellent, focused installment within the broader SOLID programming series.

Some desired more advanced scenarios; others found it perfectly adequate.

"I felt it could have gone a bit deeper into real-world complex scenarios for more advanced learners."

"While the principle was explained, I felt it was a bit rushed for someone hoping for advanced Unity patterns."

"It's good if you're entirely new to the concept but not for highly experienced developers seeking nuance."

Integrates well into the SOLID series, yet stands alone for ISP.

"It perfectly fits into the SOLID series, building on previous principles."

"A solid hour of learning, especially if you're following the whole SOLID path, but also useful on its own."

"While part of a series, this project gives a self-contained understanding of ISP."

Delivers ISP concepts efficiently in a short timeframe.

"Excellent concise explanation of ISP within Unity."

"Very clear and to the point. The instructor made a seemingly complex topic easy."

"For an hour-long course, it packs a lot in effectively, making it a great quick learning session."

Hands-on project clarifies ISP for Unity code refactoring.

"The project-based approach really helped me grasp the concept practically."

"I immediately saw how to improve my existing Unity projects after taking this."

"The 'before' and 'after' code examples were invaluable, showing immediate improvements."

Better for those familiar with Unity/C#; less so for absolute beginners.

"As a beginner in software architecture, I needed more foundational context beyond just ISP."

"It assumes you're familiar with Unity and C#, which I was, so it worked for me."

"This course is good if you're entirely new to the principle but not if you lack basic programming."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in SOLID Programming: Interface Segregation Principle in Unity with these activities:

Review 'Head First Design Patterns'

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Review the Interface Segregation Principle and how it relates to other SOLID Principles to enhance comprehension of the topic

View Head First Design Patterns: A Brain-Friendly... on Amazon

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skim the book's table of contents and preface
Read Chapter 4: 'The Interface Segregation Principle'
Re-read the chapter and highlight key terms and concepts

Complete Codecademy's 'SOLID Design Principles' Course

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Apply the Interface Segregation Principle in a practical setting, reinforcing the concepts learned in the course

Browse courses on SOLID Principles

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Create a Codecademy account
Enroll in the 'SOLID Design Principles' course
Complete the 'Interface Segregation Principle' section

Organize a study group to discuss the Interface Segregation Principle

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Enhance your understanding of the Interface Segregation Principle by discussing it with peers and sharing different perspectives

Browse courses on SOLID Principles

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Identify a group of peers who are also taking the course
Schedule a regular meeting time
Prepare discussion topics related to the Interface Segregation Principle
Facilitate the discussion and encourage active participation

Four other activities

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Mentor a junior developer on the Interface Segregation Principle

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Solidify your understanding of the Interface Segregation Principle by sharing your knowledge and expertise with others

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Identify a junior developer who is interested in learning about the Interface Segregation Principle
Schedule regular mentoring sessions
Explain the Interface Segregation Principle and its benefits
Provide guidance and support as the mentee applies the principle in their own projects

Write a blog post explaining the Interface Segregation Principle

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Demonstrate a deep understanding of the Interface Segregation Principle by explaining it clearly and concisely to others

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Choose a blogging platform and create an account
Brainstorm and outline the content of the blog post
Write the first draft of the blog post
Revise and edit the blog post
Publish the blog post

Solve LeetCode problems related to the Interface Segregation Principle

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Test and improve your understanding of the Interface Segregation Principle by applying it to solve coding challenges

Browse courses on SOLID Principles

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Create a LeetCode account
Search for problems tagged with 'Interface Segregation Principle'
Attempt to solve the problems
Review the solutions and identify areas for improvement

Build a software application that demonstrates the Interface Segregation Principle

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Apply the Interface Segregation Principle in a real-world project, showcasing your ability to design and implement software systems that adhere to best practices

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Design the application architecture
Implement the application using an object-oriented programming language
Test the application to ensure it adheres to the Interface Segregation Principle
Document the application's design and implementation

Career center

Learners who complete SOLID Programming: Interface Segregation Principle in Unity will develop knowledge and skills that may be useful to these careers:

Game Programmer

Game Programmers design, develop, and maintain video games. They may work on a variety of projects, from small mobile games to large console games. This course on SOLID Programming: Interface Segregation Principle in Unity is specifically designed for game developers and will help you to develop the skills you need to design and implement video games that are flexible, maintainable, and extensible. This is a valuable skill for any Game Programmer who wants to be able to work on a variety of game projects.

See salaries and explore the career path for Game Programmer

Software Architect

Software Architects are responsible for creating and managing the overall software design and architecture of a software system and ensuring it meets the business requirements. This course on SOLID Programming: Interface Segregation Principle in Unity will help you understand how to design and implement software systems that are flexible, maintainable, and extensible. This is a valuable skill for any Software Architect who wants to be able to create high-quality software systems.

See salaries and explore the career path for Software Architect

Software Engineer

Software Engineers design, develop, and maintain software systems. They may work on a variety of projects, from small mobile apps to large enterprise systems. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design and implement software systems that are flexible, maintainable, and extensible. This is a valuable skill for any Software Engineer who wants to be able to work on a variety of software projects.

See salaries and explore the career path for Software Engineer

Game Designer

Game Designers create the overall design and concept for video games. They work with programmers, artists, and other team members to bring their vision to life. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design video games that are fun, engaging, and replayable. This is a valuable skill for any Game Designer who wants to be able to create high-quality games.

See salaries and explore the career path for Game Designer

Technical Artist

Technical Artists create the 3D models, textures, and other visual assets used in video games. They work with programmers and designers to bring the game world to life. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to create high-quality 3D models and textures. This is a valuable skill for any Technical Artist who wants to be able to work on a variety of game projects.

See salaries and explore the career path for Technical Artist

Web Developer

Web Developers design, develop, and maintain websites. They work with designers and other team members to create websites that are visually appealing, easy to use, and responsive. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design, develop, and maintain websites. This is a valuable skill for any Web Developer who wants to be able to work on a variety of projects.

See salaries and explore the career path for Web Developer

Mobile Developer

Mobile Developers design, develop, and maintain mobile apps. They work with designers and other team members to create mobile apps that are visually appealing, easy to use, and performant. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design, develop, and maintain mobile apps. This is a valuable skill for any Mobile Developer who wants to be able to work on a variety of projects.

See salaries and explore the career path for Mobile Developer

IT Manager

IT Managers plan, implement, and manage IT systems and services. They work with users to understand their needs and then design and implement systems that meet those needs. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to plan, implement, and manage IT systems and services. This is a valuable skill for any IT Manager who wants to be able to work on a variety of projects.

See salaries and explore the career path for IT Manager

Systems Analyst

Systems Analysts design and implement computer systems. They work with users to understand their needs and then design systems that meet those needs. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design and implement computer systems that are efficient, effective, and user-friendly. This is a valuable skill for any Systems Analyst who wants to be able to work on a variety of projects.

See salaries and explore the career path for Systems Analyst

Database Administrator

Database Administrators manage and maintain databases. They ensure that data is stored securely and efficiently and that it is available to users when they need it. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to manage and maintain databases. This is a valuable skill for any Database Administrator who wants to be able to work on a variety of projects.

See salaries and explore the career path for Database Administrator

Software Tester

Software Testers test software to find bugs and ensure that it meets the requirements. They work with developers to fix bugs and improve the quality of the software. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to test software. This is a valuable skill for any Software Tester who wants to be able to work on a variety of projects.

See salaries and explore the career path for Software Tester

UX Designer

UX Designers design the user interface and user experience for websites and apps. They work with developers and other team members to create websites and apps that are easy to use and visually appealing. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design user interfaces and user experiences. This is a valuable skill for any UX Designer who wants to be able to work on a variety of projects.

See salaries and explore the career path for UX Designer

Data Scientist

Data Scientists use data to solve problems and make decisions. They work with data analysts and other team members to analyze data and develop models that can be used to improve business outcomes. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to analyze data and develop models. This is a valuable skill for any Data Scientist who wants to be able to work on a variety of projects.

See salaries and explore the career path for Data Scientist

Machine Learning Engineer

Machine Learning Engineers design, develop, and maintain machine learning models. They work with data scientists and other team members to develop machine learning models that can be used to solve problems and make decisions. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design, develop, and maintain machine learning models. This is a valuable skill for any Machine Learning Engineer who wants to be able to work on a variety of projects.

See salaries and explore the career path for Machine Learning Engineer

Artificial Intelligence Engineer

Artificial Intelligence Engineers design, develop, and maintain artificial intelligence systems. They work with data scientists and other team members to develop artificial intelligence systems that can be used to solve problems and make decisions. This course on SOLID Programming: Interface Segregation Principle in Unity will help you to develop the skills you need to design, develop, and maintain artificial intelligence systems. This is a valuable skill for any Artificial Intelligence Engineer who wants to be able to work on a variety of projects.

See salaries and explore the career path for Artificial Intelligence Engineer

Reading list

We've selected 14 books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in SOLID Programming: Interface Segregation Principle in Unity.

Design Patterns

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This classic book comprehensive guide to design patterns. It provides in-depth coverage of the Interface Segregation Principle and other SOLID principles.

SOLID Programming

Interface Segregation Principle in Unity

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Reviews summary

Isp in unity: concise practical application

Activities

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Reading list

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