How to have OnGUI element in a OnTriggerEnter function?

Questions & Answers
1

Hi, how can i to have GUI functions inside a OntriggerEnter function? because we cant put a function inside a function…please help on what other approach…thanks

2

You can’t. You must use a boolean variable to enable GUI functions and set/reset it at OnTrigger, like this:

EDITED: As I told, you can’t put OnGUI inside OnTriggerEnter - you must create your GUI code inside a regular OnGUI function, and use a boolean variable to enable your GUI code; set or clear this variable at OnTriggerEnter/OnTriggerExit, and you will get the same effects as if the GUI code were inside OnTrigger:

 
var guiEnable = false; // variable which controls GUI

function OnGUI(){
  if (guiEnable){
    // your GUI code goes here
  }
}

function OnTriggerEnter (myTrigger : Collider) { 
  if (myTrigger.name == "user") guiEnable = true; // enable gui code on trigger enter
}

function OnTriggerExit (myTrigger : Collider) {
  if (myTrigger.name == "user") guiEnable = false; // disable gui code on trigger exit
}
3

This should be your solution;

function OnTriggerEnter(collision : Collider)
{
 if (collision.tag == "Player")
 {
 sart = true;
 Application.LoadLevel("///////////");
 }
}


function OnGUI()
{
    if(sart)
    {
        GUI.BeginGroup(new Rect(Screen.width/2+450, Screen.height - 100,290,90), "");
 GUI.Box(new Rect(10,40,200,40), "");
 //////////////////////////////////
 GUI.EndGroup();
    }
}
4

I have something like that `using UnityEngine;
using System.Collections;

public class RenderinGUI : MonoBehaviour {
public GUITexture texture;
public GUIText text;
bool on = false;
void Start(){
text.enabled = false;
texture.enabled = false;
}
void OnTriggerEnter(Collider col){
if (col.tag == “Player”) {
on = true;
}
}
void OnGUI(){
if (on == true) {
text.enabled = true;
if (Input.GetKey (KeyCode.E)) {
text.enabled = false;
texture.enabled = true;
}
if (Input.GetKeyUp (KeyCode.E)) {
text.enabled = true;
texture.enabled = false;
}
}
}
}
`