Enemy HealthBar Problems

Questions & Answers
1

hello, I’m having trouble with my enemy health bar … the error is

IndexOutOfRangeException: Array is out of range.

ok … I speak as I did … I created a prefab … using the GUI TEXTURE threw him the script

"Var HealthBarTexture: Texture2D [];

function Update () {

     guiTexture.texture HealthBarTexture = [GameController.bar];

}
@ script ExecuteInEditMode

the error is this line “guiTexture.texture HealthBarTexture = [GameController.bar];”

when the player shoots the object begins to decrease the life, I used for this collision
the game controller

static var bar: int = 24;

function Awake () {
    bar = 24;
}

and ENEMY COLLISION

"OnTriggerEnter function (col: Collider) {
     if (col.gameObject.tag == "Laser") {
         GameController.bar -= 1;
         health -= 1;
         Destroy (col.gameObject); "

Please help me I did not know what’s wrong … and when I use the enemy respawn healthbar disappears once and for all …

2

Even assuming that "Var is a typo, the syntax has several errors. The first code should be:

var HealthBarTexture: Texture2D[]; // assign the textures in the Inspector

function Update () {
    guiTexture.texture = HealthBarTexture[GameController.bar];
}

// notice the parenthesis after ExecuteInEditMode:
@script ExecuteInEditMode()

And the last code:

function OnTriggerEnter(col: Collider) {
    if (col.tag == "Laser") { // tag can be directly referenced by col
        GameController.bar -= 1;
        health -= 1;
        Destroy(col.gameObject);
    }
}

EDITED: You must make some changes in your scripts:

1- Declare the variable bar in the HealthBarEnemy script:

var HealthBarTexture: Texture2D[]; // assign the textures in the Inspector
var bar: int; // declare bar as member variable

function Update () {
    guiTexture.texture = HealthBarTexture[bar];
}

2- Change the enemy script to access the bar variable in the health bar script. If you’re not doing this yet, add to it the creation of the health bar - this will link each enemy to its own health bar at Start:

var hBarPrefab: Transform; // <- drag the health bar prefab here
private var hBar: Transform;

function Start(){
    hBar = Instantiate(hBarPrefab);
}

function OnTriggerEnter(col: Collider) {
    if (col.tag == "Laser") { // tag can be directly referenced by col
        health -= 1; 
        Destroy(col.gameObject);
        // transfer the health to the health bar script:
        hBar.GetComponent(HealthBarEnemy).bar = health;
    }
}

NOTE: I’m assuming the health bar script is called HealthBarEnemy - change the name in GetComponent to the actual script name, if it’s different.

3

try taking out Texture from guiTexture