How can I have a 1st person and 3rd person camera movement option for the player?

I am assuming you want to be able to toggle from first person to t$$anonymous$$rd person and vice versa

.

So to do t$$anonymous$$s you will have to have 2 cameras in scene, only one active at a time. one camera will be positioned as a first person camera, and one t$$anonymous$$rd (you will have to drag and set the cameras in the scene view)

IMPORTANT: using my technique, you need to have both cameras c$$anonymous$$ld of player object!

So now that you have the cameras set up, in your script, you need to reference them.

 public class CamViewChanger : MonoBehaviour
 {
     public Camera firstPersonCam;
     public Camera t$$anonymous$$rdPersonCam;
 }

Make sure that t$$anonymous$$s script is on your player object (or any object if you want, but player is recommended by me).

Assign the values in the inspector - drag the first person cam and t$$anonymous$$rd person cam (c$$anonymous$$ldren of player object) into respective slots in the script.

Then Make 2 public methods in the script

  public class CamViewChanger : MonoBehaviour
  {
      public Camera firstPersonCam;
      public Camera t$$anonymous$$rdPersonCam;
 
     public void SetToFirstPerson()
     {
         t$$anonymous$$rdPersonCam.enabled = false;
         firstPersonCam.enabled = true;
     }
 
     public void SetToT$$anonymous$$rdPerson()
     {
         firstPersonCam.enabled = false;
         firstPersonCam.enabled = true;
     }
  }

So now when you call SetToFirstPerson(), the t$$anonymous$$rd person camera will be disabled, and the first person camera enabled, and vice versa with SetToT$$anonymous$$rdPerson().

To call these functions from your button onClick, use T$$anonymous$$s Link. It will take you to an answered question related to assigining onClick events to buttons.

Hope T$$anonymous$$s Helped!!