Add CHANGELOG

Author: monkstone

CHANGELOG.md

@@ -0,0 +1 @@
+**v0.3.0** Initial version

lib/color_group.rb

@@ -0,0 +1,26 @@
+java_import Java::Monkstone::ColorUtil
+
+# class wraps a java color array, supports shuffle!, last and ruby_string
+# as well as ability to initialize with an array of "web" color string
+class ColorGroup
+  attr_reader :colors
+  def initialize(p5cols)
+    @colors = p5cols
+  end
+
+  def self.from_web_array(web)
+    ColorGroup.new(ColorUtil.web_array(web.to_java(:string)))
+  end
+
+  def shuffle!
+    @colors = ColorUtil.shuffle(colors)
+  end
+
+  def ruby_string
+    ColorUtil.rubyString(colors)
+  end
+
+  def last
+    colors[0]
+  end
+end

lib/vecmath.rb

@@ -1,8 +1,7 @@
 require 'java'
 require 'vecmath/version'
 require 'vecmath.jar'
-
-
+require 'core.jar'
 module Vecmath
   Java::Monkstone::JRLibrary.load(JRuby.runtime)
 end

test/color_tool_test.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+require_relative 'test_helper'
+
+class ColorGroupTest < Minitest::Test
+
+  PALETTE = %w[#FFFFFF #FF0000 #0000FF].freeze
+  COLORS = [16777215, 16711680, 255].to_java(:int)
+
+  def test_new
+    group = ColorGroup.new(COLORS)
+    assert group.kind_of? ColorGroup
+  end
+
+  def test_from_web_array
+    group = ColorGroup.from_web_array(PALETTE)
+    assert group.kind_of? ColorGroup
+  end
+
+  def test_ruby_string
+    p5array = [16777215, 16711680, 255]
+    group = ColorGroup.new(COLORS)
+    ruby_string = "%w[#FFFFFF #FF0000 #0000FF]\n"
+    result = group.ruby_string
+    assert_equal(result, ruby_string)
+  end
+end

test/test_helper.rb

@@ -1,4 +1,7 @@
 $LOAD_PATH.unshift File.expand_path("../../lib", __FILE__)
-require "vecmath"
+require 'vecmath'
+require 'color_group'
 
-require "minitest/autorun"
+gem 'minitest' # don't use bundled minitest
+require 'minitest/autorun'
+require 'minitest/pride'