set Edge Collider 2D to the borders of the camera's viewport

hey im trying to set an edge collider to the border of the camer's view port so t$$anonymous$$ngs won't just fly off the screen. I know i can just take 4 box coliiders but i want it to be able to adapt to the screen size and be a clean. here is what i have got so far: var rect = cam.rect; EdgeCollider2D col = GetComponent<EdgeCollider2D>(); transform.position = cam.ViewportToWorldPoint(new Vector3(1, 1, cam.nearClipPlane)) *cam.fieldOfView; Vector2[] points = new Vector2[5]; points[0] = new Vector2( 0, 0); points[1] = new Vector2(rect.xMax,0); points[2] = new Vector2(rect.xMax, rect.yMax); points[3] = new Vector2(0, rect.yMax); points[4] = new Vector2(0, 0); col.points = points;