Rotating Z Axis while always facing the camera?

Hello, I'm new to the Unity community and I'm having some problems with my game code.

So, I'm creating a 3D underwater game for my capstone project at school and I'm having an issue in rotating my player in the z axis while its always facing the camera. I'm using a 2D image as my player and I already did the part where it will always face the camera but when I want to rotate / spin it in the z-axis its not working.

Here's the code:

Code (CSharp):

1. public Camera mainCam;
2.  
3. void LateUpdate()
4.     {
5.         transform.Rotate(0, 0, Time.deltaTime*50);
6.         transform.LookAt(transform.position + mainCam.transform.rotation * Vector3.forward,
7.         mainCam.transform.rotation * Vector3.up);
8.     }

With this, the player still does always face the camera but the rotation is not working. Any help would be appreciated. Thank you

 

That's because transform.LookAt sets the rotation to something else.

There are lots of ways to solve this, but I think maybe the easiest and most useful for you would be to separate the two problems into two different GameObjects:

1. Put your player inside an empty GameObject (at the same position). Call that PlayerContainer.
2. Put a script on the PlayerContainer that does the LookAt in LateUpdate to face the camera (i.e., the above script without line 5).
3. Put a script in the Player that rotates around Z (i.e., the above script without line 6-7).

 

Thanks for replying but I did what you said and the player is going really weird now. Whenever I move my mouse the player accelerates so fast forward or backward. I'm sorry if I explained that poorly.