DanRehberg/CS462_Assignments ? reverse-engineered prompt

Build me a Unity course project repo that includes a few small assignment examples for a virtual worlds class.

I want one place with a simple shader demo that shows basic lighting and color using a custom ShaderLab shader, one assignment that shows collision detection with simple shapes, one that demonstrates normal mapping so a flat surface can look detailed, and one that uses a finite state machine for a basic NPC AI. Keep it organized like a set of student exercises, with short notes explaining what each part is meant to teach and how it fits into a game project.

Make it feel like a teaching repo, not a polished game. Use clear examples, comments, and enough structure that a student can open it in Unity and understand what each assignment is doing. If you need to, look up current Unity docs online for any shader or scripting details.