def __init__(self): self.particles = [] firstparticle = particle(0,0,0) self.particles.append(firstparticle)
def step(self): #self.gravity(self.particles) if random.randint(0,1000) > 900: self.particles.append(particle(random.randint(-1000,1000), random.randint(-1000,1000), random.randint(-1000,1000))) print "new particle added!"