How to make the ball bounce off the button?

Question

JavaScript

There is a page
click.konstantintv.ru
on which the ball moves, how to make it bounce not only from the walls of the viewport but also from the button, I tried to add to the conditions for choosing the trajectory depending on the distance between the ball and the button, but this did not affect

Answer 1

www.phaser.io/examples/v2/box2d/bullet-bodies