Actually no. I found them by googling. You can find more tricks in my utils file. https://github.com/s-macke/Interplanetary-Postal-Service/blob/master/gameWASM

Actually no. I found them by googling. You can find more tricks in my utils file. https://github.com/s-macke/Interplanetary-Postal-Service/blob/master/gameWASM/utils.c https://github.com/s-macke/Interplanetary-Postal-Service/blo... I guess you can read an explanation on a similar problem here: https://en.wikipedia.org/wiki/Fast_inverse_square_root https://en.wikipedia.org/wiki/Fast_inverse_square_root