Link Health Bar and TNT Damage scripts together

Question

I have a script that is attached to a car which gives is health and has a bar associated with it. I also have TNT which causes damage. I am not sure how to make the TNT subtract damage from the car health. Here is my explosion script which I found in a tutorial and changed to the way I thought would work. It has a bit to connect scripts but I am not sure the correct syntax to make it work-

enum ExplosionTypes {TNT, Nitro, Other} var explosionType : ExplosionTypes; var explosion : Transform; var damage : float; var hitPoints : float = 0; var deadReplacement : Rigidbody; var explosionFX : AudioClip; private var explodeSecs : float = 1; private var duration : float = 1; private var isTNT = false;

Function OnCollisionEnter (col : Collision){

 var contact : ContactPoint = col.contacts[0];
 var rot : Quaternion = Quaternion.FromToRotation(Vector3.up,contact.normal);
 var pos : Vector3 = contact.point;
 
 if(col.collider.gameObject.tag == "Stockcar" || col.collider.gameObject.tag == "TNT"){
    if(explosionType == ExplosionTypes.Nitro){
      Instantiate(explosion,pos,rot);
      Explode();
      audio.PlayOneShot(explosionFX);
      Destroy(gameObject);
      col.collider.SendMessage("ApplyDamage",damage,SendMessageOptions.DontRequireReceiver);
      }
    if(explosionType == ExplosionTypes.TNT){
      isTNT = true;
    }
    if(explosionType == ExplosionTypes.Other){
      Instantiate(explosion,pos,rot);
      Explode();
      audio.PlayOneShot(explosionFX);
      Destroy(gameObject);
      col.collider.SendMessage("ApplyDamage",damage,SendMessageOptions.DontRequireReceiver);
    }
    }

}

function Update () { var t : float = Mathf.PingPong (Time.time, duration) / duration; if(isTNT){ renderer.material.color = Color.Lerp(Color.red,Color.gray,t); } }

function Explode(){ var expl : Transform; expl = Instantiate(explosion,transform.position, transform.rotation); Destroy(gameObject); if(isTNT) isTNT = false; }

@script RequireComponent(AudioSource);

Thanks

Answer 1

Best Answer

Answer by Hrethric · Mar 14, 2013 at 07:39 PM

You have to give at least one of the objects a RigidBody, and then do this:

http://docs.unity3d.com/Documentation/ScriptReference/MonoBehaviour.OnCollisionEnter.html

Depending on how you set up the logic, you will either need figure out what the car collided with, and decrease its health based on the result, or you will want to find what the TNT exploded, and do damage based on that.

Add comment · Show 2 · Share

namekaw · Mar 17, 2013 at 05:09 PM 0

Share

I have been trying this but cannot figure out correct syntax, have shown the script now, so if you know what I need to change that would be great.

Hrethric · Mar 29, 2013 at 10:19 PM 0

Share

Hey, sorry I didn't see that you responded to this. I'm not sure if you figured it out or not, but you want to send the message you your collider's gameObject. I haven't used the message system extensively in Unity, but to my understanding that's the way it works.

Link Health Bar and TNT Damage scripts together

1 Reply

Your answer

Welcome to Unity Answers

Follow this Question

Related Questions