From: brabuhr@...
Date: 2010-08-18T21:23:54+09:00
Subject: Re: can i do this in ruby? a simulation process

On Wed, Aug 18, 2010 at 6:58 AM, Bruce Wayner <winshocker@gmail.com> wrote:
> sorry I'm totally suck in ruby here is my code:

Don't worry about it so much, we all start as beginners :)

>> A vehicle leaves the first city every 5-35sec.
>  $depart = rand(35)

This will give you:
    0 <= $depart < 35
but, you want:
    5 <= $depart <= 35

>> It takes 50sec-1min &10sec for vehicles to travel
>  $travelTime = rand(70)

Similarly, this gives you:
    0 <= $travelTime < 70
but, you want:
    50 <= $travelTime <= 70

As a sidenote, in Ruby you don't need "$" on all your variables (only
for global variables, which you generally don't need):
http://en.wikibooks.org/wiki/Ruby_Programming/Syntax/Variables_and_Constants

That's all the further I've been able to look at your code for now.