Unity实现卡牌翻动效果

/// Credit Mrs. YakaYocha /// Sourced from - https://www.youtube.com/channel/UCHp8LZ_0-iCvl-5pjHATsgw/// Please donate: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=RJ8D9FRFQF9VS using UnityEngine.Events; namespace UnityEngine.UI.Extensions{ [RequireComponent(typeof(ScrollRect))] [AddComponentMenu("Layout/Extensions/Vertical Scroller")] public class UIVerticalScroller : MonoBehaviour {  [Tooltip("Scrollable area (content of desired ScrollRect)")]  public RectTransform _scrollingPanel;  [Tooltip("Elements to populate inside the scroller")]  public GameObject[] _arrayOfElements;  [Tooltip("Center display area (position of zoomed content)")]  public RectTransform _center;  [Tooltip("Select the item to be in center on start. (optional)")]  public int StartingIndex = -1;  [Tooltip("Button to go to the next page. (optional)")]  public GameObject ScrollUpButton;  [Tooltip("Button to go to the previous page. (optional)")]  public GameObject ScrollDownButton;  [Tooltip("Event fired when a specific item is clicked, exposes index number of item. (optional)")]  public UnityEvent<int> ButtonClicked;    private float[] distReposition;  private float[] distance;  //private int elementsDistance;  private int minElementsNum;  private int elementLength;  //private int elementHalfLength;  private float deltaY;  private string result;   public UIVerticalScroller() { }   public UIVerticalScroller(RectTransform scrollingPanel, GameObject[] arrayOfElements, RectTransform center)  {   _scrollingPanel = scrollingPanel;   _arrayOfElements = arrayOfElements;   _center = center;  }    public void Awake()  {   var scrollRect = GetComponent<ScrollRect>();   if (!_scrollingPanel)   {    _scrollingPanel = scrollRect.content;   }   if (!_center)   {    Debug.LogError("Please define the RectTransform for the Center viewport of the scrollable area");   }   if (_arrayOfElements == null || _arrayOfElements.Length == 0)   {    var childCount = scrollRect.content.childCount;    if (childCount > 0)    {     _arrayOfElements = new GameObject[childCount];     for (int i = 0; i < childCount; i++)     {      _arrayOfElements[i] = scrollRect.content.GetChild(i).gameObject;     }         }   }  }   public void Start()  {   if (_arrayOfElements.Length < 1)   {    Debug.Log("No child content found, exiting..");    return;   }    elementLength = _arrayOfElements.Length;   distance = new float[elementLength];   distReposition = new float[elementLength];    //get distance between buttons   //elementsDistance = (int)Mathf.Abs(_arrayOfElements[1].GetComponent<RectTransform>().anchoredPosition.y - _arrayOfElements[0].GetComponent<RectTransform>().anchoredPosition.y);   deltaY = _arrayOfElements[0].GetComponent<RectTransform>().rect.height * elementLength / 3 * 2;   Vector2 startPosition = new Vector2(_scrollingPanel.anchoredPosition.x, -deltaY);   _scrollingPanel.anchoredPosition = startPosition;    for (var i = 0; i < _arrayOfElements.Length; i++)   {    AddListener(_arrayOfElements[i], i);   }    if (ScrollUpButton)    ScrollUpButton.GetComponent<Button>().onClick.AddListener(() => { ScrollUp(); });    if (ScrollDownButton)    ScrollDownButton.GetComponent<Button>().onClick.AddListener(() => { ScrollDown(); });    if (StartingIndex > -1)   {    StartingIndex = StartingIndex > _arrayOfElements.Length ? _arrayOfElements.Length - 1 : StartingIndex;    SnapToElement(StartingIndex);   }  }   private void AddListener(GameObject button, int index)  {   button.GetComponent<Button>().onClick.AddListener(() => DoSomething(index));  }   private void DoSomething(int index)  {   if (ButtonClicked != null)   {    ButtonClicked.Invoke(index);   }  }   public void Update()  {   if (_arrayOfElements.Length < 1)   {    return;   }    for (var i = 0; i < elementLength; i++)   {    distReposition[i] = _center.GetComponent<RectTransform>().position.y - _arrayOfElements[i].GetComponent<RectTransform>().position.y;    distance[i] = Mathf.Abs(distReposition[i]);     //Magnifying effect    float scale = Mathf.Max(0.7f, 1 / (1 + distance[i] / 200));    _arrayOfElements[i].GetComponent<RectTransform>().transform.localScale = new Vector3(scale, scale, 1f);   }   float minDistance = Mathf.Min(distance);    for (var i = 0; i < elementLength; i++)   {    _arrayOfElements[i].GetComponent<CanvasGroup>().interactable = false;    if (minDistance == distance[i])    {     minElementsNum = i;     _arrayOfElements[i].GetComponent<CanvasGroup>().interactable = true;     result = _arrayOfElements[i].GetComponentInChildren<Text>().text;    }   }    ScrollingElements(-_arrayOfElements[minElementsNum].GetComponent<RectTransform>().anchoredPosition.y);  }   private void ScrollingElements(float position)  {   float newY = Mathf.Lerp(_scrollingPanel.anchoredPosition.y, position, Time.deltaTime * 1f);   Vector2 newPosition = new Vector2(_scrollingPanel.anchoredPosition.x, newY);   _scrollingPanel.anchoredPosition = newPosition;  }   public string GetResults()  {   return result;  }   public void SnapToElement(int element)  {   float deltaElementPositionY = _arrayOfElements[0].GetComponent<RectTransform>().rect.height * element;   Vector2 newPosition = new Vector2(_scrollingPanel.anchoredPosition.x, -deltaElementPositionY);   _scrollingPanel.anchoredPosition = newPosition;   }   public void ScrollUp()  {   float deltaUp = _arrayOfElements[0].GetComponent<RectTransform>().rect.height / 1.2f;   Vector2 newPositionUp = new Vector2(_scrollingPanel.anchoredPosition.x, _scrollingPanel.anchoredPosition.y - deltaUp);   _scrollingPanel.anchoredPosition = Vector2.Lerp(_scrollingPanel.anchoredPosition, newPositionUp, 1);  }   public void ScrollDown()  {   float deltaDown = _arrayOfElements[0].GetComponent<RectTransform>().rect.height / 1.2f;   Vector2 newPositionDown = new Vector2(_scrollingPanel.anchoredPosition.x, _scrollingPanel.anchoredPosition.y + deltaDown);   _scrollingPanel.anchoredPosition = newPositionDown;  } }}

/// Credit Mrs. YakaYocha /// Sourced from - https://www.youtube.com/channel/UCHp8LZ_0-iCvl-5pjHATsgw/// Please donate: https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=RJ8D9FRFQF9VS using UnityEngine.Events; namespace UnityEngine.UI.Extensions{ [RequireComponent(typeof(ScrollRect))] [AddComponentMenu("Layout/Extensions/Vertical Scroller")] public class UIVerticalScrollerMove : MonoBehaviour {  [Tooltip("Scrollable area (content of desired ScrollRect)")]  public RectTransform _scrollingPanel;//展示面板  [Tooltip("Elements to populate inside the scroller")]  public GameObject[] _arrayOfElements;//长度元素  [Tooltip("Center display area (position of zoomed content)")]  public RectTransform _center;//位置  [Tooltip("Select the item to be in center on start. (optional)")]  public int StartingIndex = -1;//初始指针（外界提供）  [Tooltip("Button to go to the next page. (optional)")]  public GameObject ScrollLeftButton;//左按钮  [Tooltip("Button to go to the previous page. (optional)")]  public GameObject ScrollRightButton;//右按钮  [Tooltip("Event fired when a specific item is clicked, exposes index number of item. (optional)")]  public UnityEvent<int> ButtonClicked;//按钮点击    private float[] distReposition;//长度改变  private float[] distance;//长度列表  //private int elementsDistance;  private int minElementsNum;//最小元素数  private int elementLength;//元素长度  //private int elementHalfLength;  private float deltaX;//移动x  private string result;//结果   public UIVerticalScrollerMove() { }//构造函数   public UIVerticalScrollerMove(RectTransform scrollingPanel, GameObject[] arrayOfElements, RectTransform center)  {   _scrollingPanel = scrollingPanel;   _arrayOfElements = arrayOfElements;   _center = center;  }    //初始化启动  public void Awake()  {   var scrollRect = GetComponent<ScrollRect>();//获取到排列   if (!_scrollingPanel)   {    _scrollingPanel = scrollRect.content;//如果不是展示面板，获取该物体的可滚动的面板   }   if (!_center)//如果设置不成功，打印失败   {    Debug.LogError("Please define the RectTransform for the Center viewport of the scrollable area");   }   if (_arrayOfElements == null || _arrayOfElements.Length == 0)   {    var childCount = scrollRect.content.childCount;    if (childCount > 0)    {     _arrayOfElements = new GameObject[childCount];     for (int i = 0; i < childCount; i++)     {      _arrayOfElements[i] = scrollRect.content.GetChild(i).gameObject;     }         }   }//获取子物体的长度  }   //初始化启动  public void Start()  {   if (_arrayOfElements.Length < 1)   {    Debug.Log("No child content found, exiting..");    return;   }//没有子物体的时候，打印寻找失败    elementLength = _arrayOfElements.Length;   distance = new float[elementLength];   distReposition = new float[elementLength];//通过子物体的长度定义距离长度列表与移动长度列表    //get distance between buttons   //elementsDistance = (int)Mathf.Abs(_arrayOfElements[1].GetComponent<RectTransform>().anchoredPosition.y - _arrayOfElements[0].GetComponent<RectTransform>().anchoredPosition.y);   deltaX = _arrayOfElements[0].GetComponent<RectTransform>().rect.width * elementLength / 3 * 2;   Vector2 startPosition = new Vector2( -deltaX,_scrollingPanel.anchoredPosition.y);   _scrollingPanel.anchoredPosition = startPosition;//获取到更改的按钮    for (var i = 0; i < _arrayOfElements.Length; i++)   {    AddListener(_arrayOfElements[i], i);   }//监听每个按钮上挂载的方法    //如果左右按钮的话，分别监听不同的方法   if (ScrollLeftButton)    ScrollLeftButton.GetComponent<Button>().onClick.AddListener(() => { ScrollLeft(); });    if (ScrollRightButton)    ScrollRightButton.GetComponent<Button>().onClick.AddListener(() => { ScrollRight(); });      //比较外界提供的初始指针并进行初始定位   if (StartingIndex > -1)   {    StartingIndex = StartingIndex > _arrayOfElements.Length ? _arrayOfElements.Length - 1 : StartingIndex;    SnapToElement(StartingIndex);   }  }   //让该物体监听到自己所对应的事件  private void AddListener(GameObject button, int index)  {   button.GetComponent<Button>().onClick.AddListener(() => DoSomething(index));  }   //index按钮对应的点击状态  private void DoSomething(int index)  {   if (ButtonClicked != null)   {    ButtonClicked.Invoke(index);   }  }   //逻辑更新  public void Update()  {   if (_arrayOfElements.Length < 1)   {    return;   }//子物体为空的时候返回    for (var i = 0; i < elementLength; i++)   {    distReposition[i] = _center.GetComponent<RectTransform>().position.x - _arrayOfElements[i].GetComponent<RectTransform>().position.x;    distance[i] = Mathf.Abs(distReposition[i]);     //Magnifying effect    float scale = Mathf.Max(0.7f, 1 / (1 + distance[i] / 200));    _arrayOfElements[i].GetComponent<RectTransform>().transform.localScale = new Vector3(scale, scale, 1f);   }//不断更新可滑动面板下面的物体下面的动态数列   float minDistance = Mathf.Min(distance);//求出最小间距    for (var i = 0; i < elementLength; i++)   {    _arrayOfElements[i].GetComponent<CanvasGroup>().interactable = false;    if (minDistance == distance[i])    {     minElementsNum = i;     _arrayOfElements[i].GetComponent<CanvasGroup>().interactable = true;     result = _arrayOfElements[i].GetComponentInChildren<Text>().text;    }   }//除了被选中的物体，其余物体都是不可交互的    ScrollingElements(-_arrayOfElements[minElementsNum].GetComponent<RectTransform>().anchoredPosition.x);//不断向着新坐标移动  }   //不断移动坐标，保证向着目标点移动  private void ScrollingElements(float position)  {   float newX= Mathf.Lerp(_scrollingPanel.anchoredPosition.x, position, Time.deltaTime * 1f);   Vector2 newPosition = new Vector2(newX,_scrollingPanel.anchoredPosition.y);   _scrollingPanel.anchoredPosition = newPosition;  }   public string GetResults()  {   return result;  }   //通过指针计算该物体在坐标栏下的位置  public void SnapToElement(int element)  {   float deltaElementPositionX = _arrayOfElements[0].GetComponent<RectTransform>().rect.width * element;   Vector2 newPosition = new Vector2(-deltaElementPositionX,_scrollingPanel.anchoredPosition.y);   _scrollingPanel.anchoredPosition = newPosition;  }   //左右滑动  public void ScrollLeft()  {   float deltaLeft = _arrayOfElements[0].GetComponent<RectTransform>().rect.width / 1.2f;   Vector2 newPositionLeft = new Vector2(_scrollingPanel.anchoredPosition.x-deltaLeft, _scrollingPanel.anchoredPosition.y);   _scrollingPanel.anchoredPosition = Vector2.Lerp(_scrollingPanel.anchoredPosition,newPositionLeft, 1);  }   public void ScrollRight()  {   float deltaRight = _arrayOfElements[0].GetComponent<RectTransform>().rect.width / 1.2f;   Vector2 newPositionRight = new Vector2(_scrollingPanel.anchoredPosition.x+deltaRight, _scrollingPanel.anchoredPosition.y);   _scrollingPanel.anchoredPosition = newPositionRight;  } }}

using System.Collections;using System.Collections.Generic;using UnityEngine;using UnityEngine.UI;using UnityEngine.UI.Extensions; public class ScrollingCalendarTest : MonoBehaviour { public RectTransform monthsScrollingPanel; public GameObject monthsButtonPrefab; private GameObject[] monthsButtons; public RectTransform monthCenter;  private int monthsSet;  UIVerticalScrollerMove monthsVerticalScroller; //Initialize Months //生成预制体 private void InitializeMonths() { int[] months = new int[12];  monthsButtons = new GameObject[months.Length]; for (int i = 0; i < months.Length; i++) { string month = ""; months[i] = i;  GameObject clone = (GameObject)Instantiate(monthsButtonPrefab, new Vector3(i * 380,0, 0), Quaternion.Euler(new Vector3(0, 0, 0))) as GameObject; clone.transform.SetParent(monthsScrollingPanel, false); clone.transform.localScale = new Vector3(1, 1, 1);  month = ""+i;  clone.GetComponentInChildren<Text>().text = month; clone.name = "Month_" + months[i]; clone.AddComponent<CanvasGroup>(); monthsButtons[i] = clone; } } // Use this for initialization  public void Awake()  {   InitializeMonths();    //Yes Unity complains about this but it doesn't matter in this case.   monthsVerticalScroller = new UIVerticalScrollerMove(monthsScrollingPanel, monthsButtons, monthCenter);    monthsVerticalScroller.Start();  }   public void SetDate()  {//   monthsSet = int.Parse(inputFieldMonths.text) - 1;    monthsVerticalScroller.SnapToElement(monthsSet);  }   void Update()  {   monthsVerticalScroller.Update();    string monthString = monthsVerticalScroller.GetResults();   }    public void MonthsScrollUp()  {   monthsVerticalScroller.ScrollLeft();  }   public void MonthsScrollDown()  {   monthsVerticalScroller.ScrollRight();  } }