add README.md

Author: monkstone

data_path/README.md

@@ -0,0 +1,5 @@
+### Installing libraries ###
+For libraries other than `sound` and `video` eg `pdf` you need to copy the library folder to `~/.propane/libraries` (_ie just like the installer does for video and sound_). Same is true for external libraries like `hype` (renaming to lower case as required eg `~/.propane/libraries/hype/library/hype.jar`).
+
+Interestingly the `pdf` library from processing-2.2.1 seems to work just fine with `propane-1.2.2`.
+

data_path/complex_3D.rb

@@ -12,7 +12,7 @@ class Complex3D < Propane::App
   attr_reader :num, :pt, :style, :dosave
 
   def setup
-    sketch_title 'Complex 3 D'
+    sketch_title 'Complex 3D'
     background(255)
     @dosave = false
     @num = 150

regular/25_squares.rb

@@ -0,0 +1,56 @@
+#!/usr/bin/env jruby -v -w
+# frozen_string_literal: true
+
+require 'propane'
+
+class VeraMolnar < Propane::App
+  # Creative Coding
+  # # # # #
+  # Vera Molnar – 25 Squares
+  # # # # #
+  # Interpretation by Martin Vögeli
+  # Converted to JRubyArt Martin Prout
+  # # # # #
+  # Based on code by Indae Hwang and Jon McCormack
+  #
+  
+  def settings
+    size(600, 600)
+  end
+  
+  def setup
+    sketch_title '25 Squares'
+    rect_mode(CORNER)
+    no_stroke
+    frame_rate(1)  # set the frame rate to 1 draw call per second
+  end
+  
+  def draw
+    background(180) # clear the screen to grey
+    grid_size = 5 # rand(3..12)   # select a rand number of squares each frame
+    gap = 5 # rand(5..50) # select a rand gap between each square
+    # calculate the size of each square for the given number of squares and gap between them
+    cellsize = (width - (grid_size + 1) * gap) / grid_size
+    # calculate shadow offset
+    offset_x = cellsize / 16.0
+    offset_y = cellsize / 16.0
+    grid_size.times do |i|
+      grid_size.times do |j|
+        # fill(140, 180) # shadow
+        # rect(gap * (i + 1) + cellsize * i + offset_x, gap * (j + 1) + cellsize * j + offset_y, cellsize, cellsize)
+        if rand(0..5) > 4
+          fill(color('#a11220'), 180.0) # Note how to create transparent fill with web color JRubyArt
+        else
+          fill(color('#884444'), 180.0) 
+        end
+        rect(gap * (i + 1) + cellsize * i + rand(-5..5), gap * (j + 1) + cellsize * j + rand(-5..5), cellsize, cellsize)
+      end
+    end
+    # save your drawings when you press keyboard 's' continually
+    if (key_pressed? && key == 's')
+      save_frame('######.jpg')
+    end
+  end #end of draw
+end # class
+
+VeraMolnar.new

regular/arcball_box.rb

@@ -11,7 +11,7 @@
 
 class ArcballBox < Propane::App
 
-  def setup
+  def settings
     size(600, 600, P3D)
     smooth(8)
   end

regular/grey_circles.rb

@@ -5,7 +5,7 @@
 
 class GreyCircles < Propane::App
 
-  def setup
+  def settings
     size(323, 200)
     smooth
   end

regular/words.rb

@@ -1,4 +1,3 @@
-# encoding: utf-8
 # frozen_string_literal: true
 require 'propane'
 # Words.