Why is this script not working? (SendMessage)

Questions & Answers
1

I have two scripts. One on a wall, another on a ball. I’m trying to access a void from one script, in a different script.

Here is the script with the function:

    public void ResetBall ()
    	{
    		var rigY = rigidbody2D.velocity.y;
    		var rigX = rigidbody2D.velocity.x;
    		var traY = transform.position.y;
    		var traX = transform.position.x;
    		rigY = 0f;
    		rigX = 0f;
    		traY = 0f;
    		traX = 0f;
    
    		Invoke("goBall", 0.5f);
    	}

And here is the script trying to access it:

void OnTriggerEnter2D (Collider2D hitInfo) 
	{
		if (hitInfo.name == "Ball")
		{
			var wallName = transform.name;
			gameMan.Score (wallName);
			hitInfo.gameObject.SendMessage ("ResetBall");

		}
	
	}

Not going to lie this is all pretty advanced for me, but according to the video i’m watching (who is using javascript), the hitInfo should be able to send a message into the ball, because the ball IS “hitInfo” technically.

All I end up getting are warnings saying that rigy/x, and tray/x are not being used. And the ResetBall function doesn’t go through.

2

var rigY = rigidbody2D.velocity.y;

and

rigY = 0f;

Doesn’t do what you think it does.

You’re getting a copy of the velocity value, then setting the copy to 0. But the velocity isn’t affected by the copy. You need to set the velocity directly:

rigidbody2D.velocity = new Vector2(0, 0);// or "= Vector2.zero";

The same applies to transform.position (using Vector3 instead of Vector2).