Processing Methods not found on Windows

[ShadowfeindX]

I made simple test sketch.

def settings
  size 400, 400
  c = color rand 255
  red c
end

def setup
  sketch_title 'Test'
end

And when I ran it, um...

Unhandled Java exception: java.lang.NullPointerException
java.lang.NullPointerException: null
                                red at processing/core/PApplet.java:15154
                             invoke at java/lang/reflect/Method:-1
  invokeDirectWithExceptionHandling at org/jruby/javasupport/JavaMethod.java:455
                       invokeDirect at org/jruby/javasupport/JavaMethod.java:316
                           settings at test.rb:3
                         invokeRuby at org/jruby/javasupport/proxy/JavaProxyConstructor.java:255
                             invoke at org/jruby/javasupport/proxy/JavaProxyConstructor.java:238
                           settings at org/jruby/proxy/processing/core/PApplet$Proxy1:-1
                     handleSettings at processing/core/PApplet.java:951
                          runSketch at processing/core/PApplet.java:10742
                          runSketch at processing/core/PApplet.java:10945
                          runSketch at processing/core/PApplet.java:10951
                             invoke at java/lang/reflect/Method:-1
  invokeDirectWithExceptionHandling at org/jruby/javasupport/JavaMethod.java:440
                 tryProxyInvocation at org/jruby/javasupport/JavaMethod.java:625
                       invokeDirect at org/jruby/javasupport/JavaMethod.java:301
                         initialize at C:/JRuby92-x64/lib/ruby/gems/shared/gems/jruby_art-1.5.0/lib/jruby_art/app.rb:116
                        newInstance at org/jruby/RubyClass.java:997
                               call at org/jruby/RubyClass$INVOKER$i$newInstance.gen:-1
                load_and_run_sketch at C:/JRuby92-x64/lib/ruby/gems/shared/gems/jruby_art-1.5.0/lib/jruby_art/runners/base.rb:46
   invokeOther2:load_and_run_sketch at C_3a_/JRuby92_minus_x64/lib/ruby/gems/shared/gems/jruby_art_minus_1_dot_5_dot_0/lib/jruby_art/runners/C:/JRuby92-x64/lib/ruby/gems/shared/gems/jruby_art-1.5.0/lib/jruby_art/runners/run.rb:4
                             <main> at C_3a_/JRuby92_minus_x64/lib/ruby/gems/shared/gems/jruby_art_minus_1_dot_5_dot_0/lib/jruby_art/runners/C:/JRuby92-x64/lib/ruby/gems/shared/gems/jruby_art-1.5.0/lib/jruby_art/runners/run.rb:4
                invokeWithArguments at java/lang/invoke/MethodHandle:-1
                          runScript at org/jruby/Ruby.java:852
                        runNormally at org/jruby/Ruby.java:771
                        runNormally at org/jruby/Ruby.java:789
                        runFromMain at org/jruby/Ruby.java:601
                      doRunFromMain at org/jruby/Main.java:415
                        internalRun at org/jruby/Main.java:307
                                run at org/jruby/Main.java:234
                               main at org/jruby/Main.java:206

Which I assume means that the gem, or JRuby itself, couldn't find the red method? This also happens for a few other methods such as green, blue, colorMode, etc.

It's listed when I call find_method 'red' and I can run a sketch that doesn't call red such as loading an image or some such. And k9 --check returns fine for me. I don't quite know what's going on.

[monkstone]

@ShadowfeindX
Well your sketch is I think kind of illegal, the only purpose of settings as far as I know is to set

1. size or full_screen
2. mode (eg P2D) so full_screen(P2D) or size 200, 200, P2D
3. smooth in fact this is the only place to set smooth since processing-3
4. pixel_density

Now if you want to define / use a random color you should just create it where you use it, if you want set a random color one time do it in setup (or define a constant)

def settings
  size 400, 400  
end

def setup
  sketch_title 'Test'
end

def draw
  background color(rand(255)) # pays to add brackets for nested args
end

OR

attr_reader :red

def settings
  size 400, 400  
end

def setup
  sketch_title 'Test'
  @red = color(rand(255)) # pays to add brackets for nested args
end

def draw
  background red
end

[ShadowfeindX]

I wasn't trying to create or define the color red. I was attempting to call the Processing function red which should return the red value of an RGB color.

As for my sketch being illegal, yeah you're right. Changing it to this

def settings
  size 800, 400
end

def setup
  sketch_title 'Test'
  c = color(rand(255))
  p red c
end

Worked and did not throw an error.
Thanks!

[monkstone]

@ShadowfeindX be sure to have a look at http://ruby-processing.github.io/JRubyArt/methods/color, there are hacks to get color to work on JRubyArt since java uses signed integers...