What's the algorithm?

Question

Programming

Hello everyone, tell me what kind of algorithm is here

. I want to do something similar, only with one battery and not with several, and the wires are not only straight
. How is it better to randomly scatter the elements? and what is the best way to check, that is, if the wire goes from the battery to the light bulb, it burns otherwise, no, tell me

Answer 1

Wave
upd: I think the query "Wave algorithm" in Google will give an impetus to thought.

Answer 2

flood routing?

Answer 3

Alternatively, you can try filling with color on the canvas.