def __init__(self, size, x=0, y=0, vx=0, vy=0, ax=0, ay=0):
"""Build the component."""
AABB.__init__(self, x, y, size)
self.velocity = Vector(vx, vy)
self.acceleration = Vector(ax, ay)
self.acceleration += _world.gravity
self.contact = False
def __init__(self):
"""Set config values for world AABB."""
AABB.__init__(self, config['offset'][0],
config['offset'][1], config['size'])
self.gravity = Vector(*config['gravity'])
