Update

An Entity’s update method will be called automatically:

By assigning update to an entity

e = Entity()

def my_update():
    e.x += 1 * time.dt # dt stands for delta time, the duration since the last frame.

e.update = my_update

By inheriting the Entity class

class Player(Entity):
    def update(self):
        self.x += 1 * time.dt

By having an update function in __main__ (the starting script)

The third option is to put a function called update in __main__, the starting script. You’ll see this in many examples because it is convenient for small scripts. Keep in mind this will not work if you import a module with an update function defined at module level.

def update():
    print('update')