restrict camera movement, Camera moves out of bounds - unity3d

Question

I'm creating a simple camera pan and scroll for my mobile game and need some help.
Right now with the code I have a player can scroll of the map I created.
I got the code from this youtube video (for context) https://gist.github.com/ditzel/836bb36d7f70e2aec2dd87ebe1ede432
https://www.youtube.com/watch?v=KkYco_7-ULA&ab_channel=DitzelGames
Do you know how I could fix this?
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class ScrollAndPinch : MonoBehaviour
{
#if UNITY_IOS || UNITY_ANDROID
public Camera Camera;
public bool Rotate;
protected Plane Plane;
public Transform Map;
float distance;
private void Awake()
{
if (Camera == null)
Camera = Camera.main;
Input.multiTouchEnabled = true;
}
private void Update()
{
//Update Plane
if (Input.touchCount >= 1)
Plane.SetNormalAndPosition(transform.up, transform.position);
var Delta1 = Vector3.zero;
var Delta2 = Vector3.zero;
//Scroll
if (Input.touchCount >= 1)
{
Delta1 = PlanePositionDelta(Input.GetTouch(0));
if (Input.GetTouch(0).phase == TouchPhase.Moved)
Camera.transform.Translate(Delta1, Space.World);
}
}
protected Vector3 PlanePositionDelta(Touch touch)
{
//not moved
if (touch.phase != TouchPhase.Moved)
return Vector3.zero;
//delta
var rayBefore = Camera.ScreenPointToRay(touch.position - touch.deltaPosition);
var rayNow = Camera.ScreenPointToRay(touch.position);
if (Plane.Raycast(rayBefore, out var enterBefore) && Plane.Raycast(rayNow, out var enterNow))
return rayBefore.GetPoint(enterBefore) - rayNow.GetPoint(enterNow);
//not on plane
return Vector3.zero;
}
protected Vector3 PlanePosition(Vector2 screenPos)
{
//position
var rayNow = Camera.ScreenPointToRay(screenPos);
if (Plane.Raycast(rayNow, out var enterNow))
return rayNow.GetPoint(enterNow);
return Vector3.zero;
}
#endif
}

Answer 1

You can put in the update a control with the bounds of your area with a bool like this :
if(Camera.transform.position.x > valuexmax || Camera.transform.position.x < valuexmin
|| Camera.transform.position.y > valueymax || Camera.transform.position.y < valueymin)
{
InBounds = false; //just a bool variable set to true in start
}
And then you can put in the scroll something like this
if (Input.touchCount >= 1 && InBounds == true)
{
Delta1 = PlanePositionDelta(Input.GetTouch(0));
if (Input.GetTouch(0).phase == TouchPhase.Moved)
Camera.transform.Translate(Delta1, Space.World);
}
if(InBounds == false)
{
// reset position
}