[Help] Camera clipping through walls (camera collide)

Unity Engine
1

Hi everyone! I’m developing my first game I’m having some troubles with my camera. It works nice, it rotates and move its position perfectly, but it keep going through walls and I’m not sure what I should do. It will be great if someone could shed some light on this matter, since I’ve been several days trying to code this. I’ll leave here the code until now (unity 2018.3.2.f1, btw).

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

public class CameraController : MonoBehaviour {


    public Transform target;

    public Vector3 offset;

    public bool useOffsetValues;

    public float rotateSpeed;

    public Transform pivot;

    public float maxViewAngle;
    public float minViewAngle;

    public bool invertY;
   
   
    void Start () {
       
        if (!useOffsetValues)
        {
            offset = target.position - transform.position;
        }
       
        pivot.transform.position = target.transform.position;
       
        pivot.transform.parent = null;
       
        Cursor.lockState = CursorLockMode.Locked;             
    }


   
    void LateUpdate () {
       
        pivot.transform.position = target.transform.position;
       
        float horizontal = Input.GetAxis("Mouse X") * rotateSpeed;
        pivot.Rotate(0, horizontal, 0);
       
        float vertical = Input.GetAxis("Mouse Y") * rotateSpeed;

        if (invertY)
        {
            pivot.Rotate(vertical, 0, 0);
        }
        else
        {
            pivot.Rotate(-vertical, 0, 0);
        }


        float desiredYAngle = pivot.eulerAngles.y;

        float desiredXAngle = pivot.eulerAngles.x;
       
        if (pivot.rotation.eulerAngles.x > maxViewAngle && pivot.rotation.eulerAngles.x < 180f)
        {
            pivot.rotation = Quaternion.Euler(maxViewAngle, desiredYAngle, 0);
        }

        if (pivot.rotation.eulerAngles.x > 180f && pivot.rotation.eulerAngles.x < 360f + minViewAngle)
        {
            pivot.rotation = Quaternion.Euler(360f + minViewAngle, desiredYAngle, 0);
        }
       
        Quaternion rotation = Quaternion.Euler(desiredXAngle, desiredYAngle, 0);
        transform.position = target.position - (rotation * offset);
       
        if(transform.position.y < target.position.y)
        {
            transform.position = new Vector3(transform.position.x, target.position.y -.5f, transform.position.z);
        }
        transform.LookAt(target);
    }
}

Thanks!

2

Bump! Still having this issue. Would be great if someone could help. Thanks!

3

Basically you need to do a raycast (or spherecast, depending on the effect you want) between your player’s position and the camera. If it hits something you need to adjust the camera to that point to avoid the obstacle. If it doesn’t hit anything, no adjustment is required.

2 Likes
4

Thank you! Since I am starting with coding in C# this sounds a bit difficult, but better than nothing for sure. Thanks for the advice, I’ll see what I can do.