Broadcastmessage not working, I think.

Unity Engine
1

Have a question, I am trying to use a collision function(c# code)for some projectiles and then the object being shot, the on collision code in the projectile is this:

void OnCollisionEnter(Collision collision)
	{
     if (collision.contacts[0].thisCollider.tag == "Enemy")
            Debug.Log("We have collided");
            BroadcastMessage("ApplyDamage",Mathf.Infinity, SendMessageOptions.DontRequireReceiver);
            Destroy(gameObject);

}

Nothing works with this, but if I comment out the if statement I only get the console log message the Broadcastmessage still don’t work. I have colliders on each object and the collider on the object that I am shooting is called enemy but still nothing. Is there anything wrong with what I am doing and any help is appreciated.

2

You have to specify the object to BroadcastMessage to. Right now it’s just being called on the object that has that OnCollisionEnter function.

–Eric

3

How would I manage that, from what I understood is that when you applydamage it is suppose to call all the scripts with applydamage?

4

Thanks for that tip Eric, I did something different my code now reads

void OnCollisionEnter(Collision collision)
	{
       if (collision.contacts[0].thisCollider.tag == "Enemy")
            Debug.Log("We have collided");
            BroadcastMessage("ApplyDamage",SendMessageOptions.RequireReceiver);
            Destroy(gameObject);

	}

Now I get the error
BroadcastMessage ApplyDamage has no receiver!
UnityEngine.Component:BroadcastMessage(String, Object, SendMessageOptions)
Anything that I am doing wrong here?

5

BroadcastMessage is just sending to the object the script is attached to. You need to specify the object to send to; “someObject.BroadcastMessage”, where “someObject” is derived from the collision info.

–Eric