Unity guides
One question, one post. These are recipes you can land on from a search and leave again — unlike the course, which builds one project from start to finish. Each post says which lesson does the same thing as part of that project.
Collisions and triggers: why the event never fires
Why are OnCollisionEnter and OnTriggerEnter never called?
in the course — Character & Combat: Projectiles, damage and VFX
Switching scenes: LoadScene, loading screens and what survives
How do I switch to another scene?
in the course — Basics: Screens, panels and the GameManager
Singletons: one GameManager the whole game can reach
What is a singleton, and how should a GameManager be written?
in the course — Basics: Screens, panels and the GameManager
Prefabs: the file, the copies, and the edits in between
What is a prefab in Unity?
in the course — Basics: Block prefabs
Moving a character: which of the three ways is yours
How do I make a character move?
in the course — Character & Combat: Movement, jumping and landing on blocks
Jumping, and the ground check that makes it work
How do I make the character jump, and stop it jumping in mid-air?
in the course — Character & Combat: Movement, jumping and landing on blocks
Rotation: Euler angles, Quaternions, and which one you may touch
How do I rotate an object, and what is a Quaternion?
in the course — Camera & Input: Third-person orbit
A follow camera that does not stutter
How do I make the camera follow the player without jitter?
in the course — Camera & Input: Follow camera