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Argh-steroids

Asteroids-like game using pygame. Python 3 compatible. Install pygame and run main.py.

Alternatively, there's a WebGL version.

Start screen In play

Features

  • Asteroids bounce off each other. It uses a map to make collision detection fast.

  • Your ship has a shield and you can bump into asteroids a few times. The shield regenerates slowly.

  • Mouse and keyboard controls.

  • Vector graphics using an affine transform rather than a lot of trig functions.

  • Particle system for explosions.

  • Small, simple code. It's only 1,300 lines for everything, it should be easy to hack on.

  • It's fast enough on a Raspberry-Pi 2. On my modest laptop it can animate more than 200 asteroids and more than 5,000 particles at 60 fps.

Secret keys

  • Hold 'S' during level start animation to spawn extra asteroids for testing.

  • Hold 'I' to see object and FPS counts.

  • Press 'P' to toggle particles on and off. This can help the framerate on slower systems.

  • Press 'N' to skip to the next level. Handy for testing.

TODO

  • More sounds, audio on/off.

  • Can we make sound less laggy? There's a long pause between pressing fire and the shot sound being played, for example.

  • Have a key to change shield behaviour on the start-screen.

  • Collision detection is just touching circles, we could look at the geometry as well to get pixel-perfect detection.

  • Collision physics just exchanges the two velocities, we could do true billiard-ball collisions.

  • The wrap-around is rather crude. We could draw sprites as they wrap.

  • Gravity, grappling hook, bombs, etc.

Changes

Text character designs taken from https://github.com/rickwight/meteors

John Cupitt, 24/5/15

  • Copy sounds from webgl version.

  • Added annoying background music.

Pierce Lally, 21/5/15

  • Added sounds.

  • Made python 3 compatible.

  • Option for "conventional" shield behaviour. Shield mode 1 uses a key press ("F") and stays on for a period of time before turning off. There is a cool down between key presses. Use 0 for author's original shield mode. User can select SHIELDBEHAVIOR with the global variable on line 23 in ship.py.

Authors

Rick Wight, John Cupitt, Pierce Lally