Why wont my rigidbody stick into collider

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1

I have a rigidbody projectile I am instantiating and adding force to. When i shoot it at an enemy I want it to stick into them, but instead it just bounces off.

This is my code for the projectile and i have a tag added to it for the collision detection

var clone : Rigidbody;
clone = Instantiate(sawProjectile, transform.position, transform.rotation);	
clone.rigidbody.AddForce(clone.transform.forward * sawSpeed

function onCollisionEnter(col: Collision){
	
	if(col.gameObject.tag == "SAW"){
		Debug.Log("hit");		
		col.rigidbody.isKinematic = true;//stops saw physics
		col.transform.Translate(depth * Vector3.forward); //moves the saw blade deeper
		col.transform.parent = transform; //sticks the saw to the enemy	
		Physics.IgnoreCollision(col.collider, transform.collider); //stops collider for entry
	}
}

As it sits it does not seem to pick up the detection at all. They all just seem to bounce off of the other collider or sometimes on rare they will just pass through it. thanks in advance

2

There are three separate things here. The first is the objects passing through. This has been covered numerous times on Unity Answers. The most effective solutions are reducing the fixedTimeStep in the Time settings and the DontGoThroughThings script in the Unity Wiki.

The second issue is objects bouncing off and not being set to isKinematic. That is because you misnamed the function. The function should be OnCollisionEnter() with an upper case ‘O’.

The third issue is getting things to stop immediately. You’ve not run into this yet, but you probably will. This has come up before, and I worked out a couple of (hackish in my opinion) solutions. You can find them here: