def createWorld(self, world):
bd = BodyDef()
ground = world.createBody(bd)
shape = EdgeShape()
shape.set(Vector2(-40, 0), Vector2(40, 0))
ground.createFixture(shape, 0.0)
shape.dispose()
shape = PolygonShape()
shape.setAsBox(0.6, 0.125)
fd = FixtureDef()
fd.shape = shape
fd.density = 20.0
fd.friction = 0.2
jd = RevoluteJointDef()
jd.collideConnected = False
y = 25.0
prevBody = ground
for i in range(30):
bd = BodyDef()
bd.type = BodyType.DynamicBody
bd.position.set(0.5 + i, y)
body = world.createBody(bd)
body.createFixture(fd)
anchor = Vector2(i, y)
jd.initialize(prevBody, body, anchor)
world.createJoint(jd)
prevBody = body
shape.dispose()