From: Simon Anker <faderosten@...>
Date: 2008-07-31T08:58:37+09:00
Subject: Re: Another Deaf Grandma Topic, different issue

I think I've spent maybe two hours or more solving this, but I finally 
got it in the end.. I hope so anyway :) .. I have done a bit of a Python 
tutorial a bit ago, so I think I have a bit of more experience than 
Phee, but not much! So don't yell at me! :)

Phee, try inputting "BYE", "BYE", "test". I made the same mistake a 
bunch of times.

Also your indenting is a bit off. Look at the example in the "A Little 
Bit of Logic" section of Chapter 6 to get it right.

I've edited your second program to look nicer, comments below:

you = gets.chomp
byes = 0

while byes != 2
  if you=='BYE'
    byes += 1
  else
    byes=0
  end
  if you != you.upcase
    puts 'HUH?! SPEAK UP, SONNY!'
  else
    puts 'NO, NOT SINCE 19'+(rand(21)+30).to_s+'!'
  end
 you = gets.chomp
end


"byes += 1" is just another way of writing "byes = byes + 1". This 
haven't been stated any where in the tutorial though. Nor have the count 
concept as far as I know, but I don't see how to do the exercise without 
it, unless you do it with rather ugly code.

I've removed all the "then" statements as they are unnecessary. I don't 
know where you picked those up, as I haven't seen them in the tutorial 
;O .. I assume we're doing the same one (I'm doing this: 
http://pine.fm/LearnToProgram/).

Anything that isn't "!= you.chomp.upcase" IS "== you.chomp.upcase", so I 
could remove that third "if" question as well. Think of it like two 
negatives making it positive (1 - (-1) = 2).

You don't really need those .chomp's in the while loop when you do it 
when you get the string (gets). I guess they can be helpful if someone 
forgets to put a chomp on the end of gets, or you only need the string 
to be chomp'ed occasionally, but that isn't the case here.


What I did to solve it was to make the while loop run until the program 
turned it off, like this (example could be a very personalised music 
player on your pc):

keepPlaying = 1

while keepPlaying != 0
  if
    music_I_like_is_playing == True
  else
    keepPlaying = 0
  end
end

Basicly an on/off switch.
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