This effect further simulates the effects of gravity, friction, and mass – now with the addition of drag force. When the volume or midi trigger occurs, a force moves around the objects, or fish, on the screen. The lower third of the screen adds a drag force to simulate the fish being in water.

This effect is based on hgreene624’s Arroyo Boids patch and follows the video series chapter 2: The Nature of Code by the group The Coding Train on YouTube, linked below. Big props and thanks to hgreene624’s elegant code, it rocks!

Change power of gravity on knob 1
Change power of force trigger on knob 2
Change size of fish on knob 3
Change Color uniformity on knob 4
Change background color and trails on knob 5