Damage/Health problem

Questions & Answers
1

All right, I've been looking and testing all sorts of examples and answers, the problem is simple yet I fail to get it right.

I have a small prop (a barrel) and I want to shoot it with a projectile and kill it after 2 hits (for the arguments' sake)

Now, for the prop I have this from the fps example:

    var hitPoints = 100.0;
var detonationDelay = 0.0;
var deadReplacement : GameObject;

function ApplyDamage (damage : float) {

    if (hitPoints <= 0.0)
        return;

    hitPoints -= damage;
    if (hitPoints <= 0.0) {

    Invoke("DelayedDetonate", detonationDelay);
    }
}

function DelayedDetonate () {
    BroadcastMessage ("Detonate");
}

function Detonate () {

    Destroy(gameObject);

    if (deadReplacement) {
        var dead : GameObject = Instantiate(deadReplacement, transform.position, transform.rotation);
    }
}

and for the projectile, this:

    var explosion : GameObject;

function OnCollisionEnter( collision : Collision ){
    var contact : ContactPoint = collision.contacts[0];
    var rotation = Quaternion.FromToRotation( Vector3.up, contact.normal );
    var instantiatedExplosion : GameObject = Instantiate(explosion, contact.point, rotation );
    if (collision.gameObject.tag=="PreciousWreckageBarrels")
    SendMessage("ApplyDamage",5.0,SendMessageOptions.DontRequireReceiver);
}
function FixedUpdate () {
    rigidbody.AddForce (transform.TransformDirection (Vector3.forward) * 6000.0);
}

Tagged the prop correctly, did everything in my humble powers. Should I stop scripting? :)

Any help, greatly appreciated.

2

Ok,

Not sure exactly where is the problem, but the best answer is to give you some hints on how you can find the problem:

1: either in the debugger or with some good old Debug.Log("hello"). try to progress through the system.

-- do you reach OnCollisionEnter ( that is if you put Debug.Log("hello") as the first instruction in OnCollisionEnter and you do get it in the console when you see the projectile hit your object)

-- if yes, do you reach ApplyDamage() ?

-- if yes, does hitPoints get properly set?

-- if yes, do you reach DelayedDetonate ?

-- if yes, then all is fine

By doing so, you'll be able to locate the source of your problem accuratly.

Else, can you explain what exactly is not working?

Bye,

Jean

3

First of all, it doesn't need to be a broadcast, otherwise you might end up blowing up other barrels too. You should be using something like the following: 

this.sendmessage("Detonate");

better

Detonate();

Also, does it really need 6000 force? Your scene scale must be huge O.o

IMO the object is moving so fast, it actually goes through the barrel on each frame. I reccomend doing a Debug.Log("something") at each section to find out whos the culprit.

Good luck!

EDIT: lol jean beat me to it.