2D Space Shooter Engine (Asteroids Clone)

A high-performance 2D game engine built from scratch with Pure Java, recreating the classic mechanics of "Asteroids".

The goal of this project was not just to create a game, but to implement a vector-based physics system from scratch, studying fundamental concepts of computer graphics, linear algebra, and real-time memory management.

Engineering & Mathematics

Unlike games built with commercial engines (Unity/Godot), all physics and rendering logic were manually implemented:

• Custom Vector Physics: Manual implementation of vectors for calculating velocity, acceleration, inertia, and angular rotation. No pre-built physics libraries were used.
• Collision Detection: Geometry-based algorithms (polygons) to detect interactions between the ship, asteroids, and projectiles.
• Active Game Loop: Utilization of JavaFX's AnimationTimer to create a stable 60 FPS rendering loop, decoupling update logic from draw logic.
• Object-Oriented Design: Extensive use of Polymorphism to manage the lifecycle of game entities (Enemies, Player, Projectiles).

Tech Stack

• Java 21 (Core Language)
• JavaFX 21 (Graphics Rendering & Keyboard Input)
• Design Patterns: Game Loop, Component Pattern.

Features

• Newtonian Movement: The ship possesses inertia and acceleration, simulating movement in a vacuum.
• Wrap-around Mechanics: Entities leaving one side of the screen reappear on the opposite side (modular coordinate calculation).
• Progressive Difficulty: Gradual increase in complexity over time.
• Particle System: Visual feedback for collisions and destruction.

How to Run

Prerequisites

• Java JDK 21 installed.
• IDE (IntelliJ IDEA or Eclipse) configured with JavaFX support.

Steps

1. Clone the repository:

   git clone https://github.com/cgmarquess/Asteroid-Game.git

2. Open the project in your IDE.
3. Locate the main class and configure the run configuration.
4. Run the main method.

Developed by [Gabriel Marques] - [LinkedIn]