Marin Pesa

Posted on Apr 9

First Pygame Project

#pygame #python #bootdev #career

CONTENT:

As part of my Python learning journey on Boot.dev, I rebuilt the classic Asteroids arcade game using Python and Pygame. It's one of those projects that looks simple on the surface but teaches you a surprising amount about real programming concepts.

What I Built

A fully playable Asteroids clone:

Spaceship you control with keyboard input
Asteroids that split into smaller pieces when shot
Collision detection between ship, bullets, and asteroids
Screen wrapping (fly off one edge, appear on the other)
Increasing difficulty as you progress

What I Actually Learned

Object-Oriented Programming — For Real

This was the project where OOP clicked for me. Every game object — the ship, asteroids, bullets — is its own class with its own update() and draw() methods. Inheritance makes sense when your Ship, Asteroid, and Shot all share a CircleShape base class.

The Game Loop

Every game is the same pattern:

Handle input
Update game state
Draw everything
Repeat at 60 FPS

Understanding this loop is fundamental. It's the same pattern used in animation, simulation, and even some backend event loops.

Vectors and Trigonometry

Rotating a ship, calculating bullet trajectories, detecting circular collisions — it all comes down to basic vector math. Pygame's Vector2 made this manageable, but you still need to understand what sin, cos, and atan2 actually do.

Collision Detection

Checking if two circles overlap is easy (distance < sum of radii). But doing it efficiently for dozens of objects per frame? That's where you start thinking about performance and data structures.

The Boot.dev Experience

Boot.dev structures these projects well. You get a clear spec, build incrementally, and each step introduces a new concept. The Asteroids project specifically covers:

Classes and inheritance
Pygame basics
Game loops and delta time
User input handling
Collision detection
Spawning and destroying game objects

For anyone starting with Python and wanting a project that's more fun than a todo app — highly recommended.

Try It

git clone https://github.com/marinpesa15/asteroids.git
cd asteroids
pip install pygame
python main.py

Part of my transition from IT sysadmin to Python developer. More projects coming — including an AI agent and a full automation platform.

GitHub: github.com/marinpesa15/asteroids

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