Diminishing health bar, guitexture, how to?

[anon_66358404]

Hey guys,
I have a health bar in the form of a guitexture in a rectangle, and I was wondering how to make it so that it slowly depreciates over a time limit, and when you collect a certain item it goes back up a little bit?
I can’t find any relevant examples, and I suck at scripting, any help would be greatly appreciated!

[anon_66358404]

I have included my script which displays my health bar. But how do I make it say, lose 1 hitpoint every second?
And what do you add to this script to say that when you hit another specified gameobject in the game, you get 20 hitpoints added?

var hp:float;
var maxhp:float;
var healthbarWidth:int;
var myHealthbar:GameObject;
var myhb:GameObject;

function Start (){
healthbarWidth=20;
myhb=Instantiate(myHealthbar,transform.position,transform.rotation);
}

function Update (){
//draw the health bar
myhb.transform.position=Camera.main.WorldToViewportPoint (transform.position);
myhb.transform.position.x-=.05;
myhb.transform.position.y-=.05;
myhb.transform.localScale=Vector3.zero;
var healthpercent:float=hp/maxhp;
if(healthpercent<0){healthpercent=0;}
if(healthpercent>100){healthpercent=100;}
healthbarWidth=healthpercent*20;
myhb.guiTexture.pixelInset=Rect(10,10,healthbarWidth,5);
}

[anon_11205830]

theres a good tutorial on GUI’s and health on the main unity support page… lerpz 3rd person platformer. they go over how to add health when you hit a prefab as a trigger… hope that helps

[anon_66358404]

Alright, but what I want to do is have the players health bar constantly decreasing.
I have got it so that when you click the mouse the health goes down, but how do I make it go down by itself?

Code:

var maximumHitPoints = 10.0;
var hitPoints = 10.0;
var healthGUI : GUITexture;
var die : AudioClip;
var buttonDown : boolean = false;
//var resetPoints : float = 0.0;
var damage : float = 0.0;

private var healthGUIWidth = 0.0;

function Awake () {
healthGUIWidth = healthGUI.pixelInset.width;
}

function Update() {
if (Input.GetButton(“Fire1”))
{
damage = Time.deltaTime;
ApplyDamage();
}
}

function LateUpdate () {
UpdateGUI();
}

function ApplyDamage () {
hitPoints -= damage;
if (hitPoints < 0.0)
Die();

}

function Die () {
if (die)
AudioSource.PlayClipAtPoint(die, transform.position);
}

function UpdateGUI () {

var healthFraction = Mathf.Clamp01(hitPoints / maximumHitPoints);

healthGUI.pixelInset.xMax = healthGUI.pixelInset.xMin + healthGUIWidth * healthFraction;

}

[giyomu]

well just put UpdateGUI code in a coroutine / update , whatever you prefer and do same things , just multiply your decreasing value with something like Time.deltaTime so it will decrease slowly over time.

[anon_66358404]

I have no Idea how to script that is why I’m asking on the forums for how to do it. I don’t even know what you mean by making a coroutine?

[giyomu]

http://unity3d.com/support/documentation/ScriptReference/index.Coroutines_26_Yield.html

do yourself a favor, try to figure out by yourself, then if really you can’t do it , ask for code ^^…that’s the way to progress