Processing+jython color cube

sketch.py

"""
 jython version of http://hipstersinc.com/blog/2007/5/16/jruby_processingorg_howto/
 Spinning color cube controled by mouse motion.

 1. Install Jython
 2. Add Processing's core.jar to CLASSPATH: export CLASSPATH=/Applications/Processing.app/Contents/Resources/Java/core.jar
 3. ~/jython2.5b3/bin/jython sketch.py
"""


from processing.core import PApplet
from javax.swing import JFrame

class Sketch(PApplet):
  def setup(self):
    self.size(300, 300, PApplet.P3D)
    self.noStroke()
    self.colorMode(PApplet.RGB, 1)

    self.xmag = 0
    self.ymag = 0
    self.new_xmag = 0
    self.new_ymag = 0


  def draw(self):
    self.background(0.5, 0.5, 0.45)

    self.pushMatrix()

    self.translate(self.width / 2, self.height / 2, -30)

    self.new_xmag = float(self.mouseX) / self.width * PApplet.TWO_PI
    self.new_ymag = float(self.mouseY) / self.height * PApplet.TWO_PI


    diff_x = self.xmag - self.new_xmag

    if abs(diff_x) > 0.01:
      self.xmag -= diff_x / 4.0

    diff_y = self.ymag - self.new_ymag
    if abs(diff_y) > 0.01:
      self.ymag -= diff_y/4.0

    self.rotateX(-self.ymag)
    self.rotateY(-self.xmag)

    self.scale(50)
    self.beginShape(self.QUADS)

    self.fill(0, 1, 1); self.vertex(-1,  1,  1)
    self.fill(1, 1, 1); self.vertex( 1,  1,  1)
    self.fill(1, 0, 1); self.vertex( 1, -1,  1)
    self.fill(0, 0, 1); self.vertex(-1, -1,  1)

    self.fill(1, 1, 1); self.vertex( 1,  1,  1)
    self.fill(1, 1, 0); self.vertex( 1,  1, -1)
    self.fill(1, 0, 0); self.vertex( 1, -1, -1)
    self.fill(1, 0, 1); self.vertex( 1, -1,  1)

    self.fill(1, 1, 0); self.vertex( 1,  1, -1)
    self.fill(0, 1, 0); self.vertex(-1,  1, -1)
    self.fill(0, 0, 0); self.vertex(-1, -1, -1)
    self.fill(1, 0, 0); self.vertex( 1, -1, -1)

    self.fill(0, 1, 0); self.vertex(-1,  1, -1)
    self.fill(0, 1, 1); self.vertex(-1,  1,  1)
    self.fill(0, 0, 1); self.vertex(-1, -1,  1)
    self.fill(0, 0, 0); self.vertex(-1, -1, -1)

    self.fill(0, 1, 0); self.vertex(-1,  1, -1)
    self.fill(1, 1, 0); self.vertex( 1,  1, -1)
    self.fill(1, 1, 1); self.vertex( 1,  1,  1)
    self.fill(0, 1, 1); self.vertex(-1,  1,  1)

    self.fill(0, 0, 0); self.vertex(-1, -1, -1)
    self.fill(1, 0, 0); self.vertex( 1, -1, -1)
    self.fill(1, 0, 1); self.vertex( 1, -1,  1)
    self.fill(0, 0, 1); self.vertex(-1, -1,  1)

    self.endShape()
    self.popMatrix()


if __name__ == "__main__":
  sketch = Sketch()

  frame = JFrame()
  frame.defaultCloseOperation = JFrame.EXIT_ON_CLOSE
  frame.contentPane.add(sketch)
  sketch.init()

  frame.pack()
  frame.visible = True