ed7.swift

let longRecognizer = UILongPressGestureRecognizer(target: self, action: #selector(longTap(_:)))
    view.addGestureRecognizer(longRecognizer)

    @objc func longTap(_ gestureRecognize: UIGestureRecognizer) {
    let p = gestureRecognize.location(in: view)
    let hitResults = view.hitTest(p, options: [:])

    if hitResults.count > 0 {
        let result = hitResults[0].node as? NewNode
        if gestureRecognize.state == .ended {
           deleteNode(nodeID: result!.uid)
           result?.removeFromParentNode()
        }
    }
}
    
func deleteNode(nodeID: UUID) {
    let indexOf = nodes.firstIndex { (node) -> Bool in
        node.uid == nodeID
    }
    if indexOf != nil {
        // delete cell with UUID from nodes Struct Array
        nodes.remove(at: indexOf!)
    } else {
        assert(false,"NeverHappens")
    }

}