rakudave.ch

As part of the lecture, we developed a small JApplet game. I decided to create an avoider.

Rules:

• don't toch the wall
• don't touch the red circles
• circles will bounce off the walls and each other
• circles will grow over time
• catch the green circle to reduce the size of the circles and gain 3 seconds of shield power
• the shield will protect you from all threats
• you have 3 seconds of shield power for an easy start

» Open the game in a new window

» Download the source

I also wrote my own "collision detection" for the game, as there is no intersect method for ovals:
let's call our circles a and b:
If sqrt((bx-ax)²+(by-ay)²) < (a.radius + b.radius), then a and b are colliding.
The collision is only 1D, without friction etc., so I just swap the velocity-vectors of the circles.