Hi,
Thank you for trying to help, I did some tests and get it right
I want to make a make a flappy bird that's really looks like the orginal (it'll help me to study the program)
if you played the game when the bird is falling the angle is changing.
Regarding the pipes I still need to do more tests, I don't want to use Tom layout size (on the browser it's too big) I want to give it the feel of a rectangle