• Player names with their score
• Perhaps game duration?
• Game won text
• Press enter to start game text info on PRE_GAME game state.
• Perhaps add a PRE_ROUND state to not show "Press Enter to Start" on the start of each round

• Prevent ball from being launched at a perfect 90 degree angle.

feel free to adjust the constants settings (ball speed range, rotation allowances)

Keep track of the player scores.

• When score is 3, change game state to POST_GAME
• Play applause sound upon game win.
• When R is pressed in this state, reset the player's scores, paddles, and the ball.

Play the correct sound effects on the following events:

• Ball hits paddle, or bounces off wall
• Ball exits screen (Ping when a player scores a point)j

Know when the ball hits the following sides of the screen.

• Top
• Bottom
• Right
• Left

Know when the ball hits the paddle

• Player One's Paddle
• Player Two's Paddle