Rotate Rigidbody using eulerAngles.y of Camera

Questions & Answers
1

When a button is pressed, I want to rotate the player where the camera is facing. I used the code below to do it.

rb.rotation = Quaternion.LookRotation(Camera.main.transform.forward, Vector3.up);

But because my camera is slightly above the player’s head while with transform.LookAt(transform.parent), the camera’s forward is facing down the ground making the player slightly tilted forward which I don’t want.

Then I thought, because I only want the y rotation of the camera to be applied to the player, I would create a Vector3 that only have the camera’s eulerAngles.y in it. The code I made is below.

Transform mainCamTransform = Camera.main.transform;
Vector3 mainCamYRotation = new Vector3(0f, mainCamTransform.eulerAngles.y, 0f);

rb.rotation = Quaternion.LookRotation(mainCamYRotation, Vector3.up);

The problem with this code is that my expected y rotation didn’t get applied but for some reason, a x rotation is applied to the player.

2

I found the answer. So, kinda confused, what I needed was to rotate the transform and not the Rigidbody. Here’s the code I found.

Transform mainCamTransform = Camera.main.transform;
transform.eulerAngles = new Vector3(transform.eulerAngles.x, mainCamTransform.eulerAngles.y, transform.eulerAngles.z);

I thought I needed to rotate the Rigidbody so that moving and firing projectiles would work fine.