extract vanilla library info to yaml

Author: monkstone

contributed/arc_tesselation.rb

@@ -7,6 +7,7 @@
 # use `c` key to toggle colored / greyscale
 # use 's' to save
 class ArcTesselation < Propane::App
+  load_library :color_group
   attr_reader :cols, :coloured
 
   PALETTE = %w[#152A3B #158ca7 #F5C03E #D63826 #0F4155 #7ec873 #4B3331].freeze
@@ -19,7 +20,7 @@ def setup
     background 0
     sketch_title 'Arc Tesselation'
     # create a java primitive array of signed int
-    @cols = web_to_color_array(PALETTE)
+    @cols = ColorGroup.from_web_array(PALETTE)
     stroke_weight 1.5
     stroke_cap SQUARE
     stroke(0, 200)
@@ -35,7 +36,7 @@ def sep_index(idx, length)
   end
 
   def sep_color(idx, number)
-    cols[sep_index(idx - 1, number + 1)]
+    cols.colors[sep_index(idx - 1, number + 1)]
   end
 
   def arc_pattern
@@ -63,7 +64,7 @@ def arc_pattern
   end
 
   def mouse_pressed
-    @cols = shuffle_array(cols) if coloured
+    cols.shuffle!
     loop
   end
 
@@ -75,13 +76,6 @@ def key_typed
       save(data_path('arc_pattern.png'))
     end
   end
-
-  # do a ruby shuffle! on a primitive java array
-  def shuffle_array(arr)
-    cols = arr.to_a
-    cols.shuffle!
-    cols.to_java(Java::int)
-  end
 end
 
 ArcTesselation.new

external_library/gem/ruby_wordcram/render_to_buffer.rb

@@ -44,11 +44,11 @@ def draw_progress_bar(progress)
     rect(100, (height / 2) - 30, (width - 200), 60)
     # Fill in the portion that's done:
     fill(gray)
-    rect(100, (height/2)-30, (width-200) * progress, 60)
+    rect(100, (height / 2) - 30, (width - 200) * progress, 60)
   end
 
-  def draw_progress_text(progress)
-    text(format('%d%', (progress * 100).round), width / 2, (height / 2) + 50)
+  def draw_progress_text(progress = 0)
+    text "#{(progress * 100).round}%", width / 2, (height / 2) + 50
   end
 
   def settings

external_library/java/library_list.rb

@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+require 'open-uri'
+require 'yaml'
+
+my_list = []
+# Source of libary data
+VANILLA = 'http://download.processing.org/contribs'
+# Struct to store library data
+ALib = Struct.new(:name, :description, :url)
+lib = nil
+
+def extract(line, name)
+  line.sub(name, '').strip
+end
+
+open(VANILLA) do |lib_list|
+  loop do
+    lin = lib_list.readline
+    lib = ALib.new('dummy', 'dummy') if lin.start_with?('library')
+    lib = nil if lin =~ /examples|mode|tool/
+    lib.name = extract(lin, 'name=') if lib && lin.start_with?('name=')
+    lib.url = extract(lin, 'download=') if lib && lin.start_with?('download=')
+    lib.description = extract(lin, 'sentence=') if lib && lin.start_with?('sentence=')
+    my_list << lib if lib && lin.start_with?('type=library') if lib
+
+    break if lib_list.eof?
+  end
+end
+
+File.write('libraries.yml', my_list.to_yaml)

processing_app/basics/color/colors_two.rb

@@ -11,11 +11,10 @@ class CreatingColors < Propane::App
   def settings
     size 640, 360
   end
-  
+
   def setup
     sketch_title 'Homage to Albers'
-    # palette = web_to_color_array(['#CC6600', '#CC9900', '#993300'].to_java(:string))
-    palette = web_to_color_array(['#CC6600', '#CC9900', '#993300'])
+    palette = web_to_color_array(%w[#CC6600 #CC9900 #993300])
     # @redder = color 204, 102, 0
     # @yellower = color 204, 153, 0
     # @orangish = color 153, 51, 0

processing_app/library/dxf/simple_export.rb

@@ -1,49 +1,51 @@
 #!/usr/bin/env jruby -v -W2
 # frozen_string_literal: true
+
 require 'propane'
+require 'arcball'
 # DXF DXF Export
-# by Simon Greenwold.
-#
+# original by Simon Greenwold.
+# Translated to propane by Martin Prout
+# Rotate by dragging mouse, wheel to zoom.
 # Press the 'R' key to export a DXF file.
 class DXFExport < Propane::App
   load_library :dxf
   attr_reader :recording
 
   def setup
     sketch_title 'DXF Export'
-    noStroke
-    sphereDetail(12)
+    Processing::ArcBall.init(self)
+    no_stroke
+    sphere_detail(15)
     @recording = false
   end
 
   def draw
-    begin_raw(DXF, data_path('output.dxf')) if recording # Start recording to the file
+    # Start recording to the file
+    begin_raw(DXF, data_path('output.dxf')) if recording
     lights
     background(0)
-    translate(width / 3, height / 3, -200)
-    rotate_z(map1d(mouse_y, (0..height), (0..PI)))
-    rotateY(map1d(mouse_x, (0..width), (0..HALF_PI)))
-    (-2..2).step do |y|
-      (-2..2).step do |x|
-        (-2..2).step do |z|
-          push_matrix
-          translate(120 * x, 120 * y, -120 * z)
-          sphere(30)
-          pop_matrix
-        end
-      end
+    mesh_grid(400, 400, 400, 80, 80, 80) do |x, y, z|
+      push_matrix
+      translate(x - 200, y - 200, z - 200)
+      sphere(25)
+      pop_matrix
     end
     end_raw if recording
-    @recording = false # Stop recording to the file
+    # Stop recording to the file
+    @recording = false
   end
 
   def key_pressed
-    return unless key == 'R' || key == 'r' # Press R to save the file
+    # Press R to save the file
+    return unless key == 'R' || key == 'r'
+
     @recording = true
   end
 
   def settings
     size(400, 400, P3D)
+    smooth(16)
   end
 end
 

processing_app/library/vecmath/vec3d/frame_of_reference.rb

@@ -1,5 +1,6 @@
 #!/usr/bin/env jruby -v -W2
 # frozen_string_literal: true
+
 require 'propane'
 require 'arcball'