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Diffstat (limited to 'sample/observ.rb')
-rw-r--r-- | sample/observ.rb | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sample/observ.rb b/sample/observ.rb new file mode 100644 index 0000000000..f7b1e73137 --- /dev/null +++ b/sample/observ.rb @@ -0,0 +1,31 @@ +#! /usr/local/bin/ruby + +require "thread" +require "observer" + +class Tick + include Observable + def initialize + Thread.start do + while TRUE + sleep 0.999 + changed + notify_observers(Time.now.strftime("%H:%M:%S")) + end + end + end +end + +class Clock + def initialize + @tick = Tick.new + @tick.add_observer(self) + end + def update(time) + print "\e[8D", time + STDOUT.flush + end +end + +clock = Clock.new +sleep |