Tasharen Entertainment Forum

Support => NGUI 3 Support => Topic started by: GantZ_Yaka on May 07, 2013, 10:20:57 PM

Title: Show/hide NGUI Panel OnTriggerEnter/OnTriggerExit
Post by: GantZ_Yaka on May 07, 2013, 10:20:57 PM

Why this code doesnt work?

1. using UnityEngine;
2. using System.Collections;
3. public class AreaScript : MonoBehaviour {
4. public GameObject uiObject;            
5. void Start () {
6. uiObject = GameObject.Find("PanelTrigger1");   
7. NGUITools.SetActive(uiObject,false);
8.         }
9.     void OnTriggerEnter(Collider other)
10.     {
11.         NGUITools.SetActive(uiObject,true);
12.         }
13.         void OnTriggerExit(Collider other)
14.     {
15.         NGUITools.SetActive(uiObject,false);
16.     }  
17. }
18.  

Why its hard to find NGUI-tutorial of such an important thing as hiding/showing panels during entering the trigger?

Title: Re: Show/hide NGUI Panel OnTriggerEnter/OnTriggerExit
Post by: ArenMook on May 08, 2013, 02:13:56 AM

Because you can't destroy objects from within a physics callback such as OnTrigger. Set a variable instead such s "hasbeenDestroyed = true", and check for it in the Update function.

Title: Re: Show/hide NGUI Panel OnTriggerEnter/OnTriggerExit
Post by: hazzius on April 26, 2014, 06:12:55 PM

What i must to do for enable HUD objects then i pass EnablerTriggerZone and disable HUD objects then i pass DisablerTriggerZone ?

Attach not working EnablerTriggerZone script. All Debug is fine, i see it all in console in time.

1. using UnityEngine;
2. using System.Collections;
3.  
4. public class s_BlueTrigger : MonoBehaviour {
5.         private GameObject Blue;
6.         public bool BlueTrigger = false;
7.  
8.         void Start ()
9.         {
10.                 Blue = GameObject.FindGameObjectWithTag("4_Blue");
11.                 Debug.Log("Blue Detected");
12.         }
13.  
14.         void Update ()
15.         {
16.                 if (BlueTrigger)
17.                 {
18.                         NGUITools.SetActive (Blue, true);
19.                         Debug.Log("Blue True");
20.                 }
21.         }
22.  
23.         void OnTriggerEnter (Collider Other)
24.         {              
25.                 if (Other.gameObject.tag == "Player")
26.                 {
27.                         BlueTrigger = true;
28.                         Debug.Log("Blue Triggered");
29.                 }
30.         }
31. }              

Why this not work? I newbie in C# Unity and NGUI. Plz make some big answer.
And tell me, why i cant use grid in realtime? It put objects in grid and sort them only at start. If i turn off and on components at Play Mode, the components not automatically sorted in grid, just activated in places there been disabled?

Sry for bad English.

Title: Re: Show/hide NGUI Panel OnTriggerEnter/OnTriggerExit
Post by: Sahkan on April 27, 2014, 11:20:41 AM

Why don't you use Renderer.enabled = true/fales on this object ?

Title: Re: Show/hide NGUI Panel OnTriggerEnter/OnTriggerExit
Post by: ArenMook on April 27, 2014, 11:55:15 PM

I already explained why this is not possible, hazzius:

Quote from: ArenMook on May 08, 2013, 02:13:56 AM

Because you can't destroy objects from within a physics callback such as OnTrigger. Set a variable instead such s "hasbeenDestroyed = true", and check for it in the Update function.

This is just how Unity works. You cannot destroy things inside a physics callback. OnTrigger is a physics callback.