Player Movement:

Coding the player movement for Pong is an easy task. When the 'w' key is pressed, the player needs to move up (subtract from the y position). When the 's' key is pressed, the player will move down (add to the y position).

pygame.key.get_pressed() - this function returns a list of all the keyboard keys and their key states (true if the key is pressed, false if not)

pygame.K_w - the pygame code for the 'w' key. Here, the K is short for key

pygame.K_s - the pygame code for the 's' key.

When you press w or s, you may notice the player paddle moves incredibly quickly. However, this is not because the player's speed is big. The player is moving too fast because the game is currently trying to run as fast as possible. We only need it to run at about 60 fps (frames per second). To do this, we need to create a Pygame clock and use its tick function.

pygame.time.Clock() - this function creates a Pygame clock for us to use

[clock variable].tick(target_fps) - this function controls the fps of the game. It takes your target fps as an argument.

From inside the update function, we limit the game speed to 60 fps.

At this point, the player should be moving at a much more reasonable speed.

Paddle Movement