Rock Paper Scissors Spock Lizard
Overview
Rock Paper Scissors Spock Lizard is a browser-based implementation of the popular five-choice variation of the classic game. The project was developed during a programming competition as an opportunity to explore frontend architecture, rendering pipelines and application state management using only Vanilla JavaScript.
The user interface is based on the original Frontend Mentor design while the game logic was implemented from scratch.
Motivation
Although simple on the surface, interactive games provide an excellent environment for learning software engineering concepts.
This project focuses on:
- Game state management.
- Rendering updates.
- User interaction.
- Deterministic game logic.
- Component organization without frontend frameworks.
Developing the application using plain JavaScript encouraged a deeper understanding of how browser applications work internally.
Technical Implementation
The application was developed using:
- Vanilla JavaScript
- HTML
- CSS
Main features include:
- Interactive gameplay.
- Five-rule decision engine.
- Score tracking.
- Responsive interface.
- Animated state transitions.
- Modular game logic.
The decision algorithm is intentionally separated from the presentation layer, making the rules easy to understand and extend.
Engineering Highlights
This project demonstrates practical experience with:
- JavaScript application architecture.
- Rendering pipelines.
- State-driven UI updates.
- Separation of business logic.
- Interactive browser applications.
- Framework-independent frontend development.
Competition Context
The project was developed collaboratively during a software development competition.
Besides recreating the interface, the objective was to produce clean, maintainable code while experimenting with rendering techniques and frontend architecture under time constraints.
Skills Demonstrated
This project showcases experience in:
- JavaScript
- Frontend Development
- HTML
- CSS
- State Management
- Game Logic
- Software Architecture
- User Interface Development
- Interactive Applications
Why This Project Matters
While intentionally lightweight, the project demonstrates an understanding of how frontend frameworks operate internally by implementing rendering logic, application state and user interaction without relying on external libraries.
It also illustrates how relatively simple applications can serve as valuable exercises for improving software architecture and problem-solving skills.
Repository
The repository contains the complete implementation together with the game logic responsible for determining every possible outcome.
The decision algorithm is organized separately from the user interface to improve readability and maintainability.
Recruiter Notes
This project demonstrates competencies including:
- JavaScript engineering
- Frontend architecture
- State management
- Software design
- Browser application development
- Interactive UI implementation
- Clean code organization
- Problem solving
Frequently Asked Questions
What is this project?
It is a browser implementation of Rock Paper Scissors Spock Lizard built with Vanilla JavaScript during a programming competition.
Which technologies are used?
The application is built with HTML, CSS and Vanilla JavaScript without frontend frameworks.
What was the learning objective?
The project was created to better understand rendering pipelines, application state management and frontend architecture through a practical interactive application.
Why not use React or Vue?
The objective was to understand the fundamentals behind modern frontend frameworks by implementing application behavior directly with browser APIs and JavaScript.
Where is the game logic implemented?
The game rules are separated from the presentation layer, making the implementation easier to understand, maintain and extend.
Who is this project intended for?
Developers interested in frontend engineering, browser application architecture and learning how interactive interfaces can be built without external frameworks.