GSDL::Particle

active=(active : Bool)

age=(age : Float32)

angular_velocity=(angular_velocity : Float32)

end_color=(end_color : Color)

end_size=(end_size : Float32)

lifetime=(lifetime : Float32)

position=(position : Point)

rotation=(rotation : Float32)

shape=(shape : Collidable::Shape)

start_color=(start_color : Color)

start_size=(start_size : Float32)

update(dt : Float32, gravity : Point, drag : Float32)

velocity=(velocity : Point)