限制相机移动，相机移动出界

Question

我正在为我的手机游戏创建一个简单的相机平移和滚动，需要一些帮助。 现在使用代码我有一个玩家可以滚动我创建的地图。 我从这个 youtube 视频中获得了代码（用于上下文）https://gist.github.com/ditzel/836bb36d7f70e2aec2dd87ebe1ede432
https://www.youtube.com/watch?v=KkYco_7-ULA&ab_channel=DitzelGames

你知道我该如何解决这个问题吗？

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

您可以使用这样的布尔值在您的区域范围内更新控件：

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
   }

然后你可以在卷轴中放入类似这样的东西

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
 }