Can you make a clock?

ruby-talk
1

'Ello. I was just wandering how you update the time in a ruby program
(like a clock). For instance:
COMP:WED Sep 30 18:51:30
COMP:WED Sep 30 18:51:31 #Replacing the above line

I don't need the entire code for a clock (unless you happen to have it)
I just need to know the idea of how to make it. Thanks.

-Scott

···

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Posted via http://www.ruby-forum.com/.

2

Scott Andrechek wrote:

'Ello. I was just wandering how you update the time in a ruby program
(like a clock). For instance:
COMP:WED Sep 30 18:51:30
COMP:WED Sep 30 18:51:31 #Replacing the above line

I don't need the entire code for a clock (unless you happen to have it)
I just need to know the idea of how to make it. Thanks.

-Scott

Look at the Time class, particularly Time.now

···

--
MagickWand for Ruby - http://magickwand.rubyforge.org/

3

Hi. Am I missing something or do you just need:

  Time.now.strftime("%h %d %H:%M:%S")

To write to a terminal by replacing existing lines you need to send a carriage-return without a line-feed (i.e. \r rather than \n on the end of lines). If I'm being hacky, I generally just write them directly:

  $stderr.write "\rstuff here"

Just be aware that anything longer than the new line will still be visible (i.e.

  $stderr.write "\rlong string"
  $stderr.write "\rshort"

will result in

  "shortstring"

being visible.

If you want to do this properly, you should probably look at the ncurses library (Adminpanel).

Thomas

···

On 30 Sep 2009, at 23:54, Scott Andrechek wrote:

'Ello. I was just wandering how you update the time in a ruby program
(like a clock). For instance:
COMP:WED Sep 30 18:51:30
COMP:WED Sep 30 18:51:31 #Replacing the above line

I don't need the entire code for a clock (unless you happen to have it)
I just need to know the idea of how to make it. Thanks.

-Scott
--
Posted via http://www.ruby-forum.com/\.

4

Hi,

···

Am Donnerstag, 01. Okt 2009, 07:54:14 +0900 schrieb Scott Andrechek:

'Ello. I was just wandering how you update the time in a ruby program
(like a clock). For instance:
COMP:WED Sep 30 18:51:30
COMP:WED Sep 30 18:51:31 #Replacing the above line

You need a signal triggered every second so that you can refresh
the display. Just three weeks ago I posted this:

  ActiveState Community - Boosting coder and team productivity with ready-to-use open source languages and tools.

Good luck!

Bertram

--
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-scharpf.de

5

I have tried all 3 tips and although i see how it would work maybe if i
be more specific it'll help you help me : ) . I am making a program
notify me how many days are left till an event happens (in the case of
my program when a game comes out). This is what I use:

puts 'Hey Scott : D'
time=Time.new
time_cod=Time.mktime(2009,11,13)
time_operationflash=Time.mktime(2009,10,6)
time_assassinscreed2=Time.mktime(2009,11,17)
time_godofwar3=Time.mktime(2010,3)
if (time_cod.to_i<0 or time_cod.to_i==0)
  puts 'It\'s already out!'
  else
    puts 'There are ' + (((((time_cod-time)/60)/60)/24).to_i).to_s + '
days left until Call of Duty 4: Modern Warfare 2 is released'
  end
  if (time_operationflash.to_i<0 or time_operationflash.to_i==0)
    puts 'It\'s already out!'
    else
      puts 'There are ' +
(((((time_operationflash-time)/60)/60)/24).to_i).to_s + ' days left
until Operation Flashpoint: Dragon Rising is released'
    end
    if (time_assassinscreed2.to_i<0 or time_assassinscreed2==0)
      puts 'It\'s already out!'
else
puts 'There are ' +
(((((time_assassinscreed2-time)/60)/60)/24).to_i).to_s + ' days left
until Assassin\'s Creed 2 is released'
end
if (time_godofwar3.to_i<0 or time_godofwar3.to_i==0)
  puts 'It\'s already out!'
  else
    puts 'There are ' + (((((time_godofwar3-time)/60)/60)/24).to_i).to_s
+ ' days left until God of War 3 is released'
  end
  sleep 50

I use sleep so I can start it without the command line. This does work
outputting:
Hey Scott : D
There are 43 days left until Call of Duty 4: Modern Warfare 2 is
released
There are 5 days left until Operation Flashpoint: Dragon Rising is
released
There are 47 days left until Assassin's Creed 2 is released
There are 151 days left until God of War 3 is released

I would like to change it that would say how many months, days, hours,
minutes, and seconds are left. Thanks again.

-Scott

···

--
Posted via http://www.ruby-forum.com/.

6

Scott Andrechek wrote:

I have tried all 3 tips and although i see how it would work maybe if i be more specific it'll help you help me : ) . I am making a program notify me how many days are left till an event happens (in the case of my program when a game comes out). This is what I use:

puts 'Hey Scott : D'
time=Time.new
time_cod=Time.mktime(2009,11,13)
time_operationflash=Time.mktime(2009,10,6)
time_assassinscreed2=Time.mktime(2009,11,17)
time_godofwar3=Time.mktime(2010,3)
if (time_cod.to_i<0 or time_cod.to_i==0)
  puts 'It\'s already out!'
  else
    puts 'There are ' + (((((time_cod-time)/60)/60)/24).to_i).to_s + ' days left until Call of Duty 4: Modern Warfare 2 is released'
  end
  if (time_operationflash.to_i<0 or time_operationflash.to_i==0)
    puts 'It\'s already out!'
    else
      puts 'There are ' + (((((time_operationflash-time)/60)/60)/24).to_i).to_s + ' days left until Operation Flashpoint: Dragon Rising is released'
    end
    if (time_assassinscreed2.to_i<0 or time_assassinscreed2==0)
      puts 'It\'s already out!'
else
puts 'There are ' + (((((time_assassinscreed2-time)/60)/60)/24).to_i).to_s + ' days left until Assassin\'s Creed 2 is released'
end
if (time_godofwar3.to_i<0 or time_godofwar3.to_i==0)
  puts 'It\'s already out!'
  else
    puts 'There are ' + (((((time_godofwar3-time)/60)/60)/24).to_i).to_s + ' days left until God of War 3 is released'
  end
  sleep 50

I use sleep so I can start it without the command line. This does work outputting:
Hey Scott : D
There are 43 days left until Call of Duty 4: Modern Warfare 2 is released
There are 5 days left until Operation Flashpoint: Dragon Rising is released
There are 47 days left until Assassin's Creed 2 is released
There are 151 days left until God of War 3 is released

I would like to change it that would say how many months, days, hours, minutes, and seconds are left. Thanks again.

-Scott

google ruby chronic

7

Just hacked all of this together. Probably full of bugs, haven't really tested it at all. Reply if you want me to explain it. :slight_smile:

targets = [
   ["Call of Duty 4: Modern Warfare 2", Time.mktime(2009,11,13)],
   ["Operation Flashpoint: Dragon Rising", Time.mktime(2009,10,6)],
   ["Assassin's Creed 2", Time.mktime(2009,11,17)],
   ["God of War 3", Time.mktime(2010,3)]
]

def time_in_words( target_time )
   bucket = (target_time.to_i - Time.now.to_i).abs

   [
     ["days", (60*60*24)],
     ["hours", (60*60)],
     ["minutes", (60)],
     ["seconds", (1)]
   ].collect { |interval|
     plural,seconds = *interval
     value = (bucket / seconds).to_i
     bucket -= value * seconds
     if value == 1
       "#{value} #{plural[0...-1]}"
     elsif value > 1
       "#{value} #{plural}"
     else
       nil
     end
   }.compact.join(", ")
end

targets.each do |target|
   title,date = *target

   if date < Time.now
     puts "#{title} came out #{time_in_words(date)} ago."
   else
     puts "There are #{time_in_words(date)} until #{title} is released"
   end
end

Thomas.

···

On 1 Oct 2009, at 01:03, Scott Andrechek wrote:

I have tried all 3 tips and although i see how it would work maybe if i
be more specific it'll help you help me : ) . I am making a program
notify me how many days are left till an event happens (in the case of
my program when a game comes out). This is what I use:

puts 'Hey Scott : D'
time=Time.new
time_cod=Time.mktime(2009,11,13)
time_operationflash=Time.mktime(2009,10,6)
time_assassinscreed2=Time.mktime(2009,11,17)
time_godofwar3=Time.mktime(2010,3)
if (time_cod.to_i<0 or time_cod.to_i==0)
puts 'It\'s already out!'
else
   puts 'There are ' + (((((time_cod-time)/60)/60)/24).to_i).to_s + '
days left until Call of Duty 4: Modern Warfare 2 is released'
end
if (time_operationflash.to_i<0 or time_operationflash.to_i==0)
   puts 'It\'s already out!'
   else
     puts 'There are ' +
(((((time_operationflash-time)/60)/60)/24).to_i).to_s + ' days left
until Operation Flashpoint: Dragon Rising is released'
   end
   if (time_assassinscreed2.to_i<0 or time_assassinscreed2==0)
     puts 'It\'s already out!'
else
puts 'There are ' +
(((((time_assassinscreed2-time)/60)/60)/24).to_i).to_s + ' days left
until Assassin\'s Creed 2 is released'
end
if (time_godofwar3.to_i<0 or time_godofwar3.to_i==0)
puts 'It\'s already out!'
else
   puts 'There are ' + (((((time_godofwar3-time)/60)/60)/24).to_i).to_s
+ ' days left until God of War 3 is released'
end
sleep 50

I use sleep so I can start it without the command line. This does work
outputting:
Hey Scott : D
There are 43 days left until Call of Duty 4: Modern Warfare 2 is
released
There are 5 days left until Operation Flashpoint: Dragon Rising is
released
There are 47 days left until Assassin's Creed 2 is released
There are 151 days left until God of War 3 is released

I would like to change it that would say how many months, days, hours,
minutes, and seconds are left. Thanks again.

-Scott
--
Posted via http://www.ruby-forum.com/\.

8

This is what it outputs:
There are 43 days, 4 hours, 26 minutes, 28 seconds until Call of Duty 4:
Modern
Warfare 2 is released
There are 5 days, 3 hours, 26 minutes, 28 seconds until Operation
Flashpoint: Dr
agon Rising is released
There are 47 days, 4 hours, 26 minutes, 28 seconds until Assassin's
Creed 2 is r
eleased
There are 151 days, 4 hours, 26 minutes, 28 seconds until God of War 3
is releas
ed

In that format. So besides the weird formatting it works great, thanks :
). If you do have time yes and I would like it explained as I'm fairly
new to Ruby and programming in general.

-Scott

···

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