def init_body(self, position):
body_def = b2.b2BodyDef()
body_def.position = position
self.body = self.game_screen.world.CreateBody(body_def)
self.body.userData = self
shape_def = b2.b2CircleDef()
shape_def.radius = 0.5
shape_def.density = 1
self.body.CreateShape(shape_def)
self.body.SetMassFromShapes()
def __init__(self, level_actor, body_model):
super(BodyActor, self).__init__(body_model)
self.z = level_actor.z
level_actor.z += 1
body_def = b2.b2BodyDef()
self.body = level_actor.world.CreateBody(body_def)
self.body.userData = self
for shape_model in body_model.shape_models:
if isinstance(shape_model, CircleModel):
shape_def = b2.b2CircleDef()
shape_def.localPosition = self.body.GetLocalPoint(tuple(shape_model.center))
shape_def.radius = shape_model.radius
elif isinstance(shape_model, PolygonModel):
shape_def = b2.b2PolygonDef()
shape_def.vertices = [self.body.GetLocalPoint(tuple(v)) for v in shape_model.vertices]
else:
assert False
shape_def.density = shape_model.density
shape_def.friction = shape_model.friction
shape_def.restitution = shape_model.restitution
shape_def.filter.groupIndex = shape_model.group_index
shape = self.body.CreateShape(shape_def)
shape.userData = shape_model.color
self.body.SetMassFromShapes()