unity 手指旋轉(zhuǎn)角色的功能

1. 需求說明

1.1 可以用手指進行旋轉(zhuǎn)。
1.2 點擊角色時可以觸發(fā)事件

2. Unity 鼠標點擊3D物體的方法

2.1 第一種 OnMouse

在需要檢測的物體上首先物體要有Collider 添加腳本使用OnMouse系列方法（腳本的enable不影響OnMouse的調(diào)用）

    //當鼠標懸停在網(wǎng)格上時敢茁，
    void OnMouseEnter（）
    {
       
    } 
 
    // ...當鼠標懸浮在物體上
    void OnMouseOver（）
    {
    
    } 
 
    // ...當鼠標移開時
    void OnMouseExit（）
    {
       
    }
    // ...當鼠標點擊
    void OnMouseDown（）
    {
       
    }
    // ...當鼠標抬起
    void OnMouseUp（）
    {
       
    }

2.2 第二種方法射線檢測（首先物體要有Collider 然后掛載腳本）

using UnityEngine;
using System.Collections;
 
public class RayCastHitControl : MonoBehaviour 
{
    Ray ray;
    RaycastHit hit;
    GameObject obj;
    void Update()
    {
        if (Input.GetMouseButtonDown(0))
        {
            Debug.Log("點擊鼠標左鍵");
            ray = Camera.main.ScreenPointToRay(Input.mousePosition);
            if (Physics.Raycast(ray, out hit))
            {
                Debug.Log(hit.collider.gameObject.name);
                obj = hit.collider.gameObject;
                //通過名字
                if (obj.name.Equals("BeiJiuChuan"))
                {
                    Debug.Log("點中"+obj.name);
                }
                //通過標簽
                if (obj.tag == "move")
                {
                    Debug.Log("點中" + obj.name);
                }
            }
        }
    }
}

2.3 第三種方法游戲物體 EventTrigger 物體動態(tài)事件監(jiān)聽

先說一下有哪些封裝好的公共方法

OnBeginDrag         //在拖動開始之前調(diào)用稍刀。
OnCancel            //發(fā)生Cancel事件時由EventSystem調(diào)用快骗。
OnDeselect          //在選擇新對象時由EventSystem調(diào)用。
ondragDown          //每次在拖動期間移動指針時由EventSystem調(diào)用。
OnDrop              //當對象接受丟棄時由EventSystem調(diào)用唁影。
OnEndDrag           //拖動結(jié)束后由EventSystem調(diào)用耕陷。
OnInitializePotentialDrag   //在找到拖動時，但在有效開始拖動之前由EventSystem調(diào)用据沈。
OnMove              //發(fā)生Move事件時由EventSystem調(diào)用哟沫。
OnPointerClick      //發(fā)生Click事件時由EventSystem調(diào)用。
OnPointerDown       //發(fā)生PointerDown事件時由EventSystem調(diào)用锌介。
OnPointerEnter      //當指針進入與此EventTrigger關(guān)聯(lián)的對象時由EventSystem調(diào)用嗜诀。
OnPointerExit       //當指針退出與此EventTrigger關(guān)聯(lián)的對象時，由EventSystem調(diào)用孔祸。
OnPointerUp         //發(fā)生PointerUp事件時由EventSystem調(diào)用隆敢。
OnScroll            //當Scroll事件發(fā)生時由EventSystem調(diào)用。
ONSELECT            //當Select事件發(fā)生時由EventSystem調(diào)用崔慧。
OnUpdateSelected    //更新與此EventTrigger關(guān)聯(lián)的對象時由EventSystem調(diào)用拂蝎。

然后說一下使用方法

1.通過編輯器中添加

在Inspector中添加EventTrigger的componnent組件，然后點擊Add New Event Type按鈕添加一個基本的事件

image.png

當我們選擇一個事件的時候惶室，就相當于將要于此事件綁定了温自，例如當我們選擇Pointer Click的時候，綁定了這個組件的物體將接受Pointer Click 事件的消息皇钞，當我們在物體上按下鼠標的時候悼泌，（當然空間中的物體我們是無法通過鼠標點擊的，但是當我們可以通過射線碰撞的方法鹅士，來實現(xiàn)Pointer Enter券躁，Pointer Exit等事件的觸發(fā)）這里我們用來綁定這個EventTrigger 的是一個UI Panel 這樣便可以讓它接受我們自定義的單擊事件了

image.png

using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;
using System.Collections.Generic;
using UnityEngine.Events;
 
public class OnClickMouseDown : MonoBehaviour
{
  
    void Start()
    {
        //獲取或添加EventTrigger組件
        EventTrigger trigger = transform.GetComponent<EventTrigger>();
        if (trigger == null)
        {
            trigger = transform.gameObject.AddComponent<EventTrigger>();
        }
        //初始化EventTrigger.Entry的數(shù)組
        trigger.triggers = new List<EventTrigger.Entry>();
        //創(chuàng)建各種 EventTrigger.Entry的類型
        EventTrigger.Entry entry = new EventTrigger.Entry();
        entry.eventID = EventTriggerType.PointerEnter;//設(shè)置Entry的eventID類型 即EventTriggerType的各種枚舉（比如鼠標點擊，滑動掉盅，拖動等）
        UnityAction<BaseEventData> callback =new UnityAction<BaseEventData>(OnEventTrigger);  //注冊代理
        entry.callback.AddListener(callback);//添加代理事件到EventTrigger.Entry
        EventTrigger.Entry entry2 = new EventTrigger.Entry();
        entry2.eventID = EventTriggerType.PointerDown;
        UnityAction<BaseEventData> callback1 =new UnityAction<BaseEventData>(OnMouseDown);
        entry2.callback.AddListener(callback1);
 
        //在EventTrigger.Entry的數(shù)組添加EventTrigger.Entry
        trigger.triggers.Add(entry);
        trigger.triggers.Add(entry2);
    }
 
    private void OnMouseDown(BaseEventData arg0)
    {
        Debug.Log("OnMouseDown");
    }
 
    private void OnEventTrigger(BaseEventData arg0)
    {
        Debug.Log("OnEventTrigger");
    }
}

最后別忘了在攝像機下添加一個Physics Raycaster的組件也拜，用來檢測鼠標射線

image.png

3. 具體實現(xiàn)

考慮到以后的擴展，我們使用第三種方式來實現(xiàn)具體的功能趾痘。

using System;
using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;

namespace Tuyoo
{
    public class MoveTarget : EventTrigger
    {
        //對外提供的點擊回調(diào)
        public Action clickAct = null;

        public bool isClick = false;

        void Start()
        {
            EventTriggerListener.GetListener(gameObject).onDrag += onDrag;
            EventTriggerListener.GetListener(gameObject).onBeginDrag += onBeginDrag;
            EventTriggerListener.GetListener(gameObject).onPointerClick += onPointerClick;
            EventTriggerListener.GetListener(gameObject).onPointerUp += onPointerUp;
        }

        private float beginfloat = 0;
        public void onBeginDrag(GameObject go, PointerEventData eventData)
        {
            beginfloat = eventData.position.x;
        }

        public void onDrag(GameObject go, PointerEventData eventData)
        {
            isClick = false;
            transform.localRotation = Quaternion.Euler(transform.localRotation.eulerAngles.x, transform.localRotation.eulerAngles.y - (eventData.position.x - beginfloat), transform.localRotation.eulerAngles.z);
            beginfloat = eventData.position.x;
        }
        
        public void onPointerUp(GameObject go, PointerEventData eventData)
        {
            // 點擊容錯處理慢哈，只有在0.1秒內(nèi)，松開手指并且沒有移動事件觸發(fā)永票，才算點擊卵贱。
            StartCoroutine(delayTime(0.1f));
        }

        private IEnumerator delayTime(float numtimes)
        {
            yield return WaitForTimeMgr.Instance.GetWaitForSeconds(numtimes);
            isClick = true;
        }

        public void onPointerClick(GameObject go, PointerEventData eventData)
        {
            if (clickAct != null && isClick)
            {
                clickAct();
            }
        }
    }
}

using UnityEngine;
using System.Collections;
using UnityEngine.EventSystems;
 
public class EventTriggerListener : EventTrigger
{
    #region 變量
    //帶參數(shù)是為了方便取得綁定了UI事件的對象  
    public delegate void PointerEventDelegate(GameObject go, PointerEventData eventData);
    public delegate void BaseEventDelegate(GameObject go, BaseEventData eventData);
    public delegate void AxisEventDelegate(GameObject go, AxisEventData eventData);
 
    public event PointerEventDelegate onPointerEnter;
    public event PointerEventDelegate onPointerExit;
    public event PointerEventDelegate onPointerDown;
    public event PointerEventDelegate onPointerUp;
    public event PointerEventDelegate onPointerClick;
    public event PointerEventDelegate onInitializePotentialDrag;
    public event PointerEventDelegate onBeginDrag;
    public event PointerEventDelegate onDrag;
    public event PointerEventDelegate onEndDrag;
    public event PointerEventDelegate onDrop;
    public event PointerEventDelegate onScroll;
    public event BaseEventDelegate onUpdateSelected;
    public event BaseEventDelegate onSelect;
    public event BaseEventDelegate onDeselect;
    public event AxisEventDelegate onMove;
    public event BaseEventDelegate onSubmit;
    public event BaseEventDelegate onCancel;
    #endregion
 
    public static EventTriggerListener GetListener(GameObject go)
    {
        EventTriggerListener listener = go.GetComponent<EventTriggerListener>();
        if (listener == null) listener = go.AddComponent<EventTriggerListener>();
        return listener;
    }
 
    #region 方法
    public override void OnPointerEnter(PointerEventData eventData)
    {
        if (onPointerEnter != null) onPointerEnter(gameObject, eventData);
    }
    public override void OnPointerExit(PointerEventData eventData)
    {
        if (onPointerExit != null) onPointerExit(gameObject, eventData);
    }
    public override void OnPointerDown(PointerEventData eventData)
    {
        if (onPointerDown != null) onPointerDown(gameObject, eventData);
    }
    public override void OnPointerUp(PointerEventData eventData)
    {
        if (onPointerUp != null) onPointerUp(gameObject, eventData);
    }
    public override void OnPointerClick(PointerEventData eventData)
    {
        if (onPointerClick != null) onPointerClick(gameObject, eventData);
    }
    public override void OnInitializePotentialDrag(PointerEventData eventData)
    {
        if (onInitializePotentialDrag != null) onInitializePotentialDrag(gameObject, eventData);
    }
    public override void OnBeginDrag(PointerEventData eventData)
    {
        if (onBeginDrag != null) onBeginDrag(gameObject, eventData);
    }
    public override void OnDrag(PointerEventData eventData)
    {
        if (onDrag != null) onDrag(gameObject, eventData);
    }
    public override void OnEndDrag(PointerEventData eventData)
    {
        if (onEndDrag != null) onEndDrag(gameObject, eventData);
    }
    public override void OnDrop(PointerEventData eventData)
    {
        if (onDrop != null) onDrop(gameObject, eventData);
    }
    public override void OnScroll(PointerEventData eventData)
    {
        if (onScroll != null) onScroll(gameObject, eventData);
    }
    public override void OnUpdateSelected(BaseEventData eventData)
    {
        if (onUpdateSelected != null) onUpdateSelected(gameObject, eventData);
    }
    public override void OnSelect(BaseEventData eventData)
    {
        if (onSelect != null) onSelect(gameObject, eventData);
    }
    public override void OnDeselect(BaseEventData eventData)
    {
        if (onDeselect != null) onDeselect(gameObject, eventData);
    }
    public override void OnMove(AxisEventData eventData)
    {
        if (onMove != null) onMove(gameObject, eventData);
    }
    public override void OnSubmit(BaseEventData eventData)
    {
        if (onSubmit != null) onSubmit(gameObject, eventData);
    }
    public override void OnCancel(BaseEventData eventData)
    {
        if (onCancel != null) onCancel(gameObject, eventData);
    }
    #endregion
}

將腳本掛到要旋轉(zhuǎn)的物體上就可以進行旋轉(zhuǎn)了。

image.png

效果如下圖：

Jietu20200504-095321-HD.gif

unity 手指旋轉(zhuǎn)角色的功能

unity 手指旋轉(zhuǎn)角色的功能

1. 需求說明

2. Unity 鼠標點擊3D物體的方法

2.1 第一種 OnMouse

2.2 第二種方法 射線檢測（首先物體要有Collider 然后掛載腳本）

2.3 第三種方法 游戲物體 EventTrigger 物體動態(tài)事件監(jiān)聽

3. 具體實現(xiàn)

2.2 第二種方法射線檢測（首先物體要有Collider 然后掛載腳本）

2.3 第三種方法游戲物體 EventTrigger 物體動態(tài)事件監(jiān)聽