Touches Moved and Touches Ended functions to animation user selections according to their touch location in swift iOS

GesturesViewController.swift

//
//  GesturesViewController.swift
//  Gestures Demo
//
//  Created by VikasK on 18/08/19.
//  Copyright © 2019 VikasKore Software. All rights reserved.
//

import UIKit

class GesturesViewController: UIViewController {
    
    //Label to display selected value
    @IBOutlet var lblScore: UILabel!
    
    /*
     UIView where in we place collection of button,
     also helps to identify touch location contain within.
     helpful to minimise constraint to set or to border to look better and show different
     */
    @IBOutlet var scoreView: UIView!
    
    //Array of buttons
    @IBOutlet var scoreOptions: [UIButton]!
    
    //To hide status bar(optional)
    override var prefersStatusBarHidden: Bool {
        return true
    }
    
    /*
     Animate user selection while moving finger on buttons
     */
    override func touchesMoved(_ touches: Set<UITouch>, with event: UIEvent?) {
        if let touch = touches.first {
            let touchpoint:CGPoint = touch.location(in: self.view)
            if scoreView.frame.contains(touchpoint) {
                
                //returns touch location respective to score view
                let position = touch.location(in: scoreView)
                print(position)
                
                //For loop to find out which button is at touch location
                
                for button in scoreOptions {
                    if button.frame.contains(position) {
                        //Clear all selections
                        _ = scoreOptions.map {$0.setBorder(withColor: .clear, borderWidth: 1.0, cornerRadius: button.frame.height/2) }
                        
                        //set border to selected button
                        button.setBorder(withColor: .green, borderWidth: 1.0, cornerRadius: button.frame.height/2)
                        
                        //Pass button tag to function
                        scoreSelected(button.tag)
                    }
                }
            }
        }
    }
    
    /*
     Animate user selection while tapping on a buttons
     */
    override func touchesEnded(_ touches: Set<UITouch>, with event: UIEvent?) {
        if let touch = touches.first {
            let touchpoint:CGPoint = touch.location(in: self.view)
            if scoreView.frame.contains(touchpoint) {
                let position = touch.location(in: scoreView)
                print(position)
                for button in scoreOptions {
                    if button.frame.contains(position) {
                        _ = scoreOptions.map {$0.setBorder(withColor: .clear, borderWidth: 1.0, cornerRadius: button.frame.height/2) }
                        button.setBorder(withColor: .green, borderWidth: 1.0, cornerRadius: button.frame.height/2)
                        scoreSelected(button.tag)
                    }
                }
            }
        }
    }
    
    //Update selected value on label
    func scoreSelected(_ id : Int) {
        lblScore.text = String(id) // "\(id)"
    }
}