solarsystem.py

"""Animate a solar system.
   by stephan)
"""
from slut import *

class Atlantis(World):
    def onSetup(self):
        self.name = "Solar"
        self.width = 800
        self.height = 600
        self.showCoordinates = True
        self.camera.orbitBy(30, 30, 0)

        Sun(self, 'sun')
        self.sprites['sun'].enableMouseEvents()


class Sun(Sprite):
    def __init__(self, parent, name):
        Sprite.__init__(self, parent, name)
        Planet(self, 'earth')
        self.sprites['earth'].enableMouseEvents()
        self.sprites['earth'].moveTo(1.0, 0.0, 0.0)
        self.sprites['earth'].rotBy(Thrust(0.0, 100.0, 0.0))
        self.sprites['earth'].orbitBy(Thrust(0.0, 10.0, 0.0))

    def onDraw(self):
        disc(0, 0, 0, 0.2)


class Planet(Sprite):
    def __init__(self, parent, name):
        Sprite.__init__(self, parent, name)
        Moon(self, 'earthmoon')
        self.sprites['earthmoon'].enableMouseEvents()
        self.sprites['earthmoon'].moveTo(0.3, 0.0, 0.0)
        self.sprites['earthmoon'].orbitBy(Thrust(0.0, -180.0, 0.0))

    def onDraw(self):
        disc(0, 0, 0, 0.1)


class Moon(Sprite):
    def onDraw(self):
        disc(0, 0, 0, 0.02)


atlantis = Atlantis()
atlantis.run()