Question Implement a limit in Camera Movement

Hello everyone,

I need help with a camera script I'm currently working with.

Here is the script:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class SecurityCameraControl : MonoBehaviour
6. {
7.     //public float speedH = 20.0f;            Script for a First Person Camera
8.  
9.     public float rightSpeed = 20.0f;
10.     public float leftSpeed = -20.0f;
11.  
12.     //public float rotationY = 0.0f;        Script for a First Person Camera
13.  
14.     void Update()
15.     {
16.         //rotationY += speedH * Input.GetAxis("Mouse X");            Script for a First Person Camera
17.  
18.         //transform.eulerAngles = new Vector3(0, rotationY, 0);        Script for a First Person Camera
19.  
20.         //rotationY = Mathf.Clamp(rotationY, 50f, 130f);            Script for a First Person Camera
21.  
22.         //EdgeScrolling
23.         float edgeSize = 40f;
24.         if (Input.mousePosition.x > Screen.width - edgeSize)
25.         {
26.             //EdgeRight
27.             transform.RotateAround(this.transform.position, Vector3.up, rightSpeed * Time.deltaTime);
28.         }
29.  
30.         if (Input.mousePosition.x < edgeSize)
31.         {
32.             //EdgeRight
33.             transform.RotateAround(this.transform.position, Vector3.up, leftSpeed * Time.deltaTime);
34.         }
35.     }
36. }
37.  

This is the script and I want to implement a limit to the camera so that I can't rotate 360°.
I already tried to do this in line 20 and it worked, but now I want to transfer that into my real script.

If you need more information please ask me.

Thanks in advance,
Max

 

Generally never read / write to / from eulerAngles.

The reason is gimbal lock.

Instead track your own float variable that is the heading, adjust and clamp that variable, then "drive" the camera's rotation each frame.

 

First thanks for your fast answer, but I don't really understood everythings you said in your answer.

I know what "clamp" means, but how can I track my own float variable, adjust and "drive" that?

 

1. declare a variable

float heading;

2. adjust it when conditions warrant:

Code (csharp):

1. if (conditionToTurn)
2. {
3.    heading += AdjustmentWhateverYouWant;
4. }

3. clamp it

Code (csharp):

1. heading = Mathf.Clamp( heading, minimum, maximum);

4. drive the rotation to the camera transform:

Code (csharp):

1. cameraTransform.localRotation = Quaterion.Euler( 0, heading, 0);

 

Thank you for your reply.

I tested this out, but I still don't know how I can apply this into my edgescrolling script. (line 22-34)

It says that I can't apply that when I try it.

To be clear I already have a thing that defines the heading (line 12 and 20) and in now want to apply this.

Thank you for trying to help me.