Clone Flappy Bird create with libgdx framework

ScreenShot:

I am not felt good with Project :(

[+] Algorimth: I want to make the random init pipe: I want random distance between pipeUp and pipeDown and distance between 2 pipe.

[+] Code: It's not clean :(

But It also is my game for learn the Stage of libgdx and I learn more after make it. Haiz.