These are walking cells... it would be crazy. Original project's instruction: This is a quick, completely un-optimized, voronoi diagram test. Just **shift click and then click the green flag** and watch as it (slowly) draws a voronoi diagram. Change the quality slider to change the quality and speed of the drawing process. (you may have to click the green flag again.) Explanation: it places a bunch of randomly spaced points (black dots), then iterates through the pixels on the screen and finds the nearest point, and colors the pixel according to its distance to the point. See here for more info: https://en.wikipedia.org/wiki/Voronoi_diagram
Inspired by @Time_Trippler's Bubble Ball #165173686 for the method to draw dynamic Voronoi diagram in a very very tricky way.