Fix inclusion guards. Detect clicking on intro screen boxes to load next scene.
Implement scene 2's tennis ball launcher logic.
Display the total ball count.
Implement logic for scene 3.
Tweak scene 2 scoreboard to be less jittery and shoot the balls more quickly.
Add the opponent to scene 3.
Set an initial ball velocity for launches.
Create a Scene4{Model,View,Controller}.
Add a Scene5{Model,View,Controller}.
Do not display the score in scenes 4 and 5.
Remove the opponent from scene 4.
Add tree people to scene 4.
Create and draw tree people in scene 4.
Add logic for scene 4's tree people.
Draw text in scene 5.
Add AI to the players in scene 1 and 3.
Add the data folder to the project.
Add scene music. Fix AI. Change some scene mechanics.