add library

Author: monkstone

external_library/java/hype/attractor.rb

@@ -0,0 +1,53 @@
+load_library :hype
+include_package 'hype'
+java_import 'hype.extended.layout.HGridLayout'
+java_import 'hype.extended.behavior.HAttractor'
+
+attr_reader :a, :r, :hf
+
+def settings
+  size(640, 640, P3D)
+end
+
+def setup
+  sketch_title 'Attractor'
+  H.init(self)
+  H.background(color('#242424'))
+  H.use3D(true)
+  @r = 0
+  @a = 0
+  ha = HAttractor.new(320, 320, 100, 260).debug_mode(true)
+  @hf = ha.get_force(0)
+  pool = HDrawablePool.new(576)
+  pool.auto_add_to_stage
+      .add(HBox.new.depth(10).width(10).height(10))
+      .layout(
+        HGridLayout.new
+                   .start_x(26)
+                   .start_y(26)
+                   .start_z(0)
+                   .spacing(26, 26, 26)
+                   .cols(24)
+                   .rows(24)
+      )
+      .on_create do |obj|
+        obj.no_stroke
+           .fill(color('#ECECEC'))
+           .anchor_at(H::CENTER)
+        ha.add_target(obj, 20, 0.5)
+      end
+      .request_all
+end
+
+def draw
+  lights
+  x = 320 + cos(a.radians) * 200
+  y = 320 + sin(a.radians) * 200
+  @a += 1.0 / 1.4
+  hf.loc(x, y, 100)
+  translate(width / 2, height / 2)
+  rotate_y(r.radians)
+  translate(-width / 2, -height / 2)
+  @r += 0.4
+  H.draw_stage
+end