Disabled an instantiate object?

slw825 · Oct 3, 2013

Hey guys I was wondering is that possible to disabled an instantiate object?

I instantiate a health bar in the game which is a guiTexture, and I want to disabled it when there is something between the camera and the object.
It means that when player can't see that object, the health bar of the object won't come out.

But is that even possible? THX~

fire7side · Oct 3, 2013

Why don't you just do it? Do you think it might bite?

Marsupilami · Oct 3, 2013

Linmst said: ↑

Hey guys I was wondering is that possible to disabled an instantiate object?

I instantiate a health bar in the game which is a guiTexture, and I want to disabled it when there is something between the camera and the object.
It means that when player can't see that object, the health bar of the object won't come out.

But is that even possible? THX~
Click to expand...

Code (csharp):

private GUITexture storedGUITexture;

storedGUITexture = Instantiate (prefab, position, Quaternion.identity) as GUITexture;

Make a place to store the texture reference then when it is created associate it with that storage and use that storage to reference it later to disable and enable it.

DryTear · Oct 3, 2013

look up on the reference page for Physics.Ray, and var object = instantiate(sda);

slw825 · Oct 3, 2013

Uh....actually I have test it so many times.

Here's my code:

#pragma strict

//heathBar method
var hp : float;
var maxHp : float;
var healthBarWidth : int;
var myHealthBar : GameObject;
var HPBG : GameObject;
var myHB : GameObject;
var myHBBG : GameObject;

//raycast method
var camPos : Transform;
var hit : RaycastHit;
var camDir : Vector3;
var showHB : boolean;

function Start ()
{
healthBarWidth = 20;
myHB = Instantiate(myHealthBar, transform.position, transform.rotation);
myHBBG = Instantiate(HPBG, transform.position, transform.rotation);
}

function Update ()
{
//cast camera
camPos = Camera.main.transform;
camDir = camPos.position - transform.position;
if(!Physics.Raycast(transform.position, camDir, hit))
{
Debug.DrawLine(transform.position, camDir, Color.red);
showHB = true;
}else
showHB = false;

//deal HB
myHBBG.transform.position = Camera.main.WorldToViewportPoint(transform.position);
myHBBG.transform.position.x -= 0.05;
myHBBG.transform.position.y -= 0.05;
myHBBG.transform.localScale = Vector3.zero;

myHB.transform.position = Camera.main.WorldToViewportPoint(transform.position);
myHB.transform.position.x -= 0.05;
myHB.transform.position.y -= 0.05;
myHB.transform.localScale = Vector3.zero;

var healthPercent : float = hp/maxHp;
if(healthPercent < 0)
healthPercent = 0;
else if(healthPercent > 100)
healthPercent = 100;
healthBarWidth = healthPercent * 30;
myHBBG.guiTexture.pixelInset = Rect(20, 65, 30, 6);
myHB.guiTexture.pixelInset = Rect(20, 65, healthBarWidth, 6);

if(hp <= 0)
{
//var Self : GameObject = gameObject.Find("Cube");
Destroy(this.gameObject);
Destroy(myHB);
Destroy(myHBBG);
}
}

function ApplyDamage(damage : float)
{
hp -= damage;
print(damage);
}
Click to expand...

But I mean once when I instantiate guiTexture, it won't be disabled unless I destroy it.
So that's where I stuck....

slw825 · Oct 3, 2013

My reply is down there but a little dumb Q : how to post code like what you do in the reply? haha
This is just the first time I'm asking a question here.

fire7side · Oct 3, 2013

How about
myHB.guiTexture = null;?

or myHB.guiTexture.enabled = false;

Also, objects aren't disabled, they are set inactive.

slw825 · Oct 4, 2013

fire7side said: ↑

How about
myHB.guiTexture = null;?

or myHB.guiTexture.enabled = false;

Also, objects aren't disabled, they are set inactive.
Click to expand...

Wow, the second one does work!!!
Thank you for your big help!!

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