i added a main menu scene and a score system that is written in GDScript instead of C# for a change. the WallManager, the thing that detects collisions, calls the score method on the ScoreManager.
the enemy can now track the player with a cast that uses a shape generated in code. the enemy moves using some fancy math that gets the sign of the distance between the ball and the enemy paddles y position to get a normalised number for velocity and the velocity is lerped to smooth out any janky movement.
right now theres just a moving ball, inside a box, with a working paddle. i had to make the ball kinematic and tell the ball to bounce when it hits the other direction.