Added ball.js file.
Made ball bounce using sine function.
Made the ball bounce. next step: make it draggable
Moved canvas dimension code into utils.js file for future reference.
Can now reset the initial state of the animation by mouse-click
ugh
Merge branch 'wave'

* wave:
  Can now reset the initial state of the animation by mouse-click
  Moved canvas dimension code into utils.js file for future reference.
  Made the ball bounce. next step: make it draggable
  Made ball bounce using sine function.
  Added ball.js file.