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Question by judy18 · Feb 26, 2017 at 12:56 PM · zoom

Set zoom limit-z position on object not camera script

Hi, I have a script that will change an object's z position (zoom in/out) on middle mouse scroll wheel input. I want to set limits so when objects position reaches say, +/-5f, in z position it will stop. I have tried mathf.Clamp- I get no error messages but the limits don't work and the object flickers in and out. I tried both assigning it direclty and using a temporary variable. I am new to Unity and scripting so not sure if I am doing this right. Here is the script: using UnityEngine; using System.Collections;

public class ZoomObj2 : MonoBehaviour { //Input.GetAxis("Mouse ScrollWheel") public GameObject target;

 public float spinDurationFactor=0.5f;
 public float zZoomFactor=0.5f;

 public int zoomMin=5;
 public int zoomMax=-5;

 private float mouseZInitial;




 // Use this for initialization

 // Update is called once per frame
 void Update () {
     if (Input.GetMouseButtonDown(2)){
         Debug.Log("MiddleMouse Pressed");

         mouseZInitial = Input.mousePosition.z;

     }
     //if mouse is scrolled backward
     if (Input.GetAxis ("Mouse ScrollWheel")>0f) {
         Debug.Log ("MiddleMouseScrollBackward");
         //            //calculate change in z mouse position

         //is current different from initial position?

             
         target.transform.position+=Vector3.forward * zZoomFactor ;
             //            }

     } else if (Input.GetAxis ("Mouse ScrollWheel")<0f){
             Debug.Log ("MiddleMouse scroll forward");
         target.transform.position+=Vector3.forward * -zZoomFactor ;
         }
     //set limits for max and min values of zoom

     Vector3 clampedZposition = target.transform.position;
     clampedZposition.z = Mathf.Clamp (clampedZposition.z, zoomMin, zoomMax);
     target.transform.position = clampedZposition;

// target.transform.position.z= Mathf.Clamp(transform.position.z, 5f, -5f);

     }

 }
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