context.py

"""Use a Context to set sprite attributes.
   by stephan)
"""
from slut import *

class Atlantis(World):
    def onSetup(self):
        Sphere(self, 'sph1')
        redContext = ColorContext('redctxt')
        asphere = Sphere(self, 'sph2')
        asphere.addContext(redContext)
        asphere.moveBy(0.5, 0.0, 0.0)
        anothersphere = Sphere(self, 'sph3')
        anothersphere.addContext(redContext)
        anothersphere.moveBy(1.0, 0.0, 0.0)


class Sphere(Sprite):
    def onDraw(self):
        circle(0, 0, 0, 1)


class ColorContext(Context):
    def onPreDraw(self):
        glPushAttrib(GL_CURRENT_BIT)
        glColor4f(1.0, 0.5, 0.5, 1.0)

    def onPostDraw(self):
        glPopAttrib()


atlantis = Atlantis()
atlantis.run()