Top down camera player rotating

Questions & Answers
1

So I’ve got a script which makes the player rotate where the mouse is. I’m just wondering if theres a way to lock an axis. Because when the mouse goes over the player model the model rotates and faces straight up.

var speed : float = 20.0;
var rotatespeed : float = 2.0;

function Update() {

	var controller : CharacterController = GetComponent(CharacterController);
	transform.Rotate(0,Input.GetAxis("Horizontal") * rotatespeed, 0);
	
	var forward : Vector3 = transform.TransformDirection(Vector3.forward);
	var currentspeed : float = speed* Input.GetAxis("Vertical");
	controller.SimpleMove(forward * currentspeed);
	
	var position = Input.mousePosition;
	var newposition = Vector3(position.x, position.y, camera.main.transform.position.y- transform.position.y);
	var lastposition = camera.main.ScreenToWorldPoint(newposition);
	transform.LookAt(lastposition);
    
}
2

This is a bit of untested modification to your code. Instead of forward, it uses right, so the right side of your object should track the mouse. If you need ‘Z’ to track, apply this script to an empty game object and then make the visible game object a child with the correct rotation.

#pragma strict

var speed : float = 20.0;
var rotatespeed : float = 2.0;
 
function Update() {
 
    var controller : CharacterController = GetComponent(CharacterController);
    transform.Rotate(0,Input.GetAxis("Horizontal") * rotatespeed, 0);
 
    var forward : Vector3 = transform.TransformDirection(Vector3.forward);
    var currentspeed : float = speed* Input.GetAxis("Vertical");
    controller.SimpleMove(forward * currentspeed);
 
    var position = Input.mousePosition;
    var newposition = Vector3(position.x, position.y, camera.main.transform.position.y- transform.position.y);
    var lastposition = camera.main.ScreenToWorldPoint(newposition) - transform.position;
    var angle : float = Mathf.Atan2(lastposition.z, lastposition.x) * Mathf.Rad2Deg;
    transform.rotation = Quaternion.AngleAxis(angle, Vector3.up);
}