added different coloured balls and random generator

added some different colored balls to show user enemy vs balls you can eat.
The yellow ball has been deprecated. Will remove.

John Lok

m: +852 63131448
e: john.lok.djinn@gmail.com
w: http://johnlok.me

On Mon, Dec 15, 2014 at 8:35 PM, Mark Wilson <notifications@github.com>
wrote:
>
> In js/states/preload.js
> <https://github.com/wdi-hk-sep-2014/baller/pull/11#discussion-diff-21820740>
> :
>
> > @@ -12,6 +12,9 @@ function start() {
> >      game.load.image('options', 'assets/options.png');
> >      game.load.image('getready', 'assets/get_ready.png');
> >      game.load.image('youwin', 'assets/you_win.png');
> > +    game.load.image('red_ball', 'assets/red_ball.png');
> > +    game.load.image('green_ball', 'assets/green_ball.png');
> > +    game.load.image('blue_ball', 'assets/blue_ball.png');
>
> what about the yellow ball?
>
> —
> Reply to this email directly or view it on GitHub
> <https://github.com/wdi-hk-sep-2014/baller/pull/11/files#r21820740>.
>