Welcoming Sky

It's now possible to control the birds in the sky !
I finished this second environment where you can control a bird flying in a blue sky, seen from the ground. I made a background music as well.

The code is again still very messy, I don't know yet how to lighten it but I'm going to work on this before adding something new.

There are still some mini mistakes with the beep sounds and it might lag a bit.

Félix