Bouncing off screen edge

Questions & Answers
1

I’m trying to get a circle to bounce off the screen edge, here’s the code I’m using

rigidbody2D.AddForce (randomVector * 30f);


			Vector3 pos = Camera.main.WorldToViewportPoint (transform.position);
		
			if (pos.x < 0.0) {
				//Debug.Log ("I am left of the camera's view.");

				randomVector = Vector3.Reflect (randomVector, Vector3.right);
			}

			if (1.0 < pos.x) {

				//Debug.Log ("I am right of the camera's view.");
				randomVector = Vector3.Reflect (randomVector, Vector3.left);
			}

			if (pos.y < 0.0) {
				//Debug.Log ("I am below the camera's view.");
				randomVector = Vector3.Reflect (randomVector, Vector3.up);
			}

			if (1.0 < pos.y) {
				//Debug.Log ("I am above the camera's view.");
				randomVector = Vector3.Reflect (randomVector, Vector3.down);
			}

And it detects the screen edge fine, but it’s not changing the vector to move in the correct reflected direction.

2

Do what I did, simply add walls around the camera edge with colliders, and have a rigidbody on both!