The tube is like a 3-D U, seen from the front at an angle. You could also see it as a straight tube if you look at it right. It might be a little annoying... sorry if it's annoying its also long by the way circles are also called apeirogons
bobbybattleboots4 (for basic code and inspiration (kinda)) scratch (for sounds) me (for most of code) extensions (for pen) code (for making the shapes (I didn't!!! (just put random numbers in and watched what they made))) wikipedia for the chart that tells you what pretty much most shapes are called, or at least gives you the general idea. link to site https://en.wikipedia.org/wiki/List_of_polygons right click this link and then click "go to website" i think that's all Oh wait... YOU for watching (very important!)