1. Part II
Reference:

2. Drawing shapes in pygame
[Example: Drawing n circles]
Evenly spaced
Shifting colors
[Example: Animating a circle]

3. The Game Loop Animation / Game loop Erase the screen
[Get input from the user] (GameLoop only)
Update variables
Draw (using variables)
Flip
[Brain absorbs info while new screen is being drawn]

4. Window input (common to nearly all OS's)
Application == Window (to the OS)
Application might have sub-windows
Buttons, Menus, …
OS sends messages (events) to the App
Upon creation
Minimize / Maximize / Resize / Close
Mouse / Keyboard / Gamepad events

5. Events and pygame Pygame gives us two choices:
Handle (new) events manually
Ask pygame for a list of Event objects
Iterate through it (hint: while or for loop)
We'll look at this a bit later…
Let pygame handle it
Call pygame.event.pump()
Process all waiting events
Saves result in status variables
Access the status variables
[Example]