Character switching sounds like a single feature until you trace everything that depends on the active player. This tutorial makes those dependencies visible and walks through the code line by line, including a practical workaround inside Unity's standard camera package.
Why I made this
The scene contained three characters, but only one should respond to player input at a time. Pressing the switch button needed to disable the current controller, advance to the next character, wrap back to the beginning, and enable the correct component.
The camera introduced a second system boundary. Changing player control without changing the camera target would leave the interaction technically functional but visually broken, and the standard AutoCam target was protected several inheritance levels down.
What I did
I begin by demonstrating the full loop across three characters so the viewer knows the intended behavior before reading code. A World object holds the character array, a current index, and the active character reference.
On input, the script advances the index and resets it to zero after the final array element. It disables the ThirdPersonUserControl component on the outgoing player and enables that component on the incoming one.
For the camera, I explain why the obvious target was difficult to replace: the value was protected through an inherited camera hierarchy. For rapid prototyping, I add a public target to the AutoCam script and replace its internal references, then update that transform whenever control changes.
I finish by stepping through the behavior in Play mode and pointing out an unresolved edge case: switching away while a character is moving can preserve momentum. I leave it visible as either a future bug fix or a possible mechanic rather than pretending the first version is complete.
Chapters
Select a chapter to jump the video directly to that part of the workflow.
A note on the archive
This tutorial was recorded in November 2016 with Unity's Standard Assets, ThirdPersonUserControl, MultipurposeCameraRig, and AutoCam scripts. The original description was later updated to point developers toward Cinemachine for modern camera work.
The chapter timings are based on auto-generated captions and have been normalized around the demonstrated system. Use current Unity input, camera, and character-controller patterns for implementation rather than copying the 2016 package modifications directly.