Destroy(transform.root.gameObject );

Questions & Answers
1

Ok, so I unfortunately hate to post a lot, because through trial and error I can usually get what I want working by reading other peoples help request, and also just working through 10 different ways and eventually finding it.

var speed = 100;

function Awake ()
{
    renderer.material.color = Color(Random.value, Random.value, Random.value);
}

function OnCollisionEnter(collision: Collision)
{
    if (collision.rigidbody)
    {
        var fixedJoint: FixedJoint = gameObject.AddComponent(FixedJoint);
        fixedJoint.connectedBody = collision.rigidbody;
        
        fixedJoint.breakForce = 1000;
        fixedJoint.breakTorque = 1000;
        if (collision.gameObject.tag == "Projectile")
        {
            Destroy(collision.gameObject);
            Destroy(gameObject);
            Destroy(transform.root.gameObject);
        }
    }
}

The outcome I want (Which i thought the end line of code would do) is that if i collide with a child object (a sphere in this case) I want both the child and the parent, and the projectile to get destroyed, all 3 gone. Thank you. Everything is working fine: Hit the parent object, both child/parent and projectile gone, but when I hit the child, only the child/projectile die.

3

All you need is:

    Destroy(collision.gameObject);
    Destroy(transform.root.gameObject);

When you destroy the parent, all childs will also be destroyed.

Btw. You should be the destroy check before you link the fixed joint…

function OnCollisionEnter(collision : Collision)
{
    if (collision.rigidbody)
    {
        if (collision.gameObject.tag == "Projectile")
        {
            Destroy(collision.gameObject);
            Destroy(transform.root.gameObject);
            return;
        }
        var fixedJoint : FixedJoint = gameObject.AddComponent(FixedJoint);
        fixedJoint.connectedBody = collision.rigidbody;

        fixedJoint.breakForce = 1000;
        fixedJoint.breakTorque = 1000;
    }
}
2

You are destroying the script, before it can destroy the parent, just get rid of the destroy child thing, because it will destroy the child anyways!!

Btw don’t ever have empty function just lying around, that’s terrible coding.

Benproductions1
Hope this helped