How do I keep the camera behind the player?

Unity Engine
,
1

I am developing a Third Person Shooter.

I started using the Unity Third Person Template.

Right now the problem I am having is that the Camera can come in front of the player if I rotate my mouse all the way and as a result the player can shoot the enemy while running the other direction. I haven’t made any changes to the CameraOrbit.cs script that came with the Third Person Template.

How would I get the Camera to always be behind the player?

Here is the current CameraOrbit.cs Default file:

//Adapted from: https://wiki.unity3d.com/index.php/MouseOrbitImproved
//License: Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0)
//https://creativecommons.org/licenses/by-sa/3.0/
//Link to demo: https://youtu.be/I_7PyyzziTY

using StarterAssets;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class CameraOrbit : MonoBehaviour
{
    [Header("Required")]
    public Transform target;

    [Header("Config")]
    public float targetdistance = 5.0f;
    public float xSpeed = 120.0f;
    public float ySpeed = 120.0f;

    public float yMinLimit = -20f;
    public float yMaxLimit = 80f;

    public float distanceMin = 20f;
    public float distanceMax = 100f;

    public float ScrollSensativity = 30f;

    private Rigidbody rigidbody;

    float x = 0.0f;
    float y = 0.0f;


    //For smoothness
    float targetx = 0.0f;
    float targety = 0.0f;
    float distance = 5f;

    private ThirdPersonController TPC;



    // Use this for initialization
    void Start()
    {

        Vector3 angles = transform.eulerAngles;
        x = angles.y;
        y = angles.x;

        rigidbody = GetComponent<Rigidbody>();

        // Make the rigid body not change rotation
        if (rigidbody != null)
        {
            rigidbody.freezeRotation = true;
        }

      
    }

    void LateUpdate()
    {
     
        if (target)
        {
            if (Input.GetMouseButton(0))
            {
                targetx += Input.GetAxis("Mouse X") * xSpeed * distance * 0.02f * (5 / (distance + 2));
                targety -= Input.GetAxis("Mouse Y") * ySpeed * 0.02f;
            }
           

            targety = ClampAngle(targety, yMinLimit, yMaxLimit);

            x = Mathf.LerpAngle(x, targetx,0.01f);
            y = Mathf.LerpAngle(y, targety, 0.01f);

            Quaternion rotation = Quaternion.Euler(y, x, 0);

            targetdistance = Mathf.Clamp(targetdistance - (Input.GetAxis("Mouse ScrollWheel") *  ScrollSensativity ), distanceMin, distanceMax);
            distance = Mathf.Lerp(distance, targetdistance, 0.01f); //Smooth

           /* RaycastHit hit;
            if (Physics.Linecast(target.position, transform.position, out hit))
            {
                targetdistance -= hit.distance;
            } */
            Vector3 negDistance = new Vector3(0.0f, 0.0f, -distance);
            Vector3 position = rotation * negDistance + target.position;

            transform.rotation = rotation;
            transform.position = position;
        }


        //Change fov
        if (Input.GetKey(KeyCode.KeypadPlus))
        {
            GetComponent<Camera>().fieldOfView += 0.3f;
        }
        if (Input.GetKey(KeyCode.KeypadMinus))
        {
            GetComponent<Camera>().fieldOfView -= 0.3f;
        }
    }

    public static float ClampAngle(float angle, float min, float max)
    {
        if (angle < -360F)
            angle += 360F;
        if (angle > 360F)
            angle -= 360F;
        return Mathf.Clamp(angle, min, max);
    }
}
2

Camera stuff is pretty tricky… you may wish to consider using Cinemachine from the Unity Package Manager.

There’s even a dedicated forum: Unity Engine - Unity Discussions

If you insist on hacking it in yourself, the player’s Transform has shortcuts that can be used to compute relative positions, such as playerTransform.forward and playerTransform.up, which can simplify the computation of relative positions.