Hi Ernest, Where does the '$app' come from?
-Jean On Wed, Aug 20, 2008 at 11:26 PM, Ernest Prabhakar < [EMAIL PROTECTED]> wrote: > Hi Jean, > > You may want to try the: > > $app = self >> $app.draw_background >> > > trick.... > > -enp > > > > On Aug 20, 2008, at 11:22 AM, Jean Lazarou wrote: > > Thank you all for answering, but if I go for simplicity nothing works... >> >> 34 Shoes.app :height => 260, :width => 250 do >> 35 animate(1) do >> 36 @time = Time.now >> 37 clear do >> 38 draw_background >> 39 stack do >> 40 puts "Time = [EMAIL PROTECTED]" >> 41 end >> 42 end >> 43 end >> 44 def draw_background >> 45 puts "draw_background" >> 46 end >> 47 end >> >> If I define a Shoes class as following and some methods (like animate): >> >> 13 class Shoes >> 14 >> 15 def self.app params >> 16 yield >> 17 end >> 18 >> 19 >> 20 end >> 21 >> 22 def animate fps, &block >> 23 yield >> 24 end >> 25 >> 26 def clear >> 27 yield >> 28 end >> 29 >> 30 def stack >> 31 yield >> 32 end >> >> I get >> >> test.rb:38: undefined local variable or method `draw_background' for >> #<Object:0x288fa34 @time=Wed Aug 20 19:56:46 +0200 2008> (NameError) >> from test.rb:27:in `clear' >> >> I don't find any easy way to make the code run. Of course, if I comment >> the call to `draw_background' (line 38) I get the output => Time = Wed Aug >> 20 20:03:22 +0200 2008 >> >> (I run the code with the C-Ruby runtime) >> >> Is there some Ruby technical I don't know? >> >> Jean >> >> >
