unityzgy/Assets/Scripts/ThisProjectTool/VRCtrl/FixedAbs.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;
using VRTK;

//被一个/多个固定物影响交互的物体  同时又影响其他物体交互
public abstract class FixedAbs : MonoBehaviour,IFixed,IVRGrabOperater
{
    //影响本物体交互的固定器
    [SerializeField]
    protected IFixator [] fixators;
    //处于可固定位置
    protected bool onFixedPos;

    protected VRTK_InteractableObject interactableObject;

    protected FixedStateEnum currentFixedState;


    public FixedStateEnum CurrentFixedState
    {
        get {
            return currentFixedState;
        }
    }

    public FixatorStateEnum FixatorState => throw new System.NotImplementedException();

    protected virtual void Awake()
    {
        interactableObject = this.GetComponentInChildren<VRTK_InteractableObject>();
        interactableObject.InteractableObjectUngrabbed += UnGrabbed;//物体放开时执行
        interactableObject.InteractableObjectGrabbed += Grabbed;//物体放开时执行
    }

    //物体被手柄放开时
    private void UnGrabbed(object sender, InteractableObjectEventArgs e)
    {
        UnGrabbed();
    }

    //物体被手柄放开时
    private void Grabbed(object sender, InteractableObjectEventArgs e)
    {
        Grabbed();
    }

    //固定器发生变化时
    public virtual void FixatorChanged(IFixator fixator, FixatorStateEnum fixatorState)
    {
        if (!onFixedPos) return;//不在固定位置 固定器发生变化 不做处理
        //固定器打开时 检索是否所有的都被打开 都被打开 则本物体可以交互
        if (fixatorState == FixatorStateEnum.UnLocking)
        {
            IFixator lockedFixator = ArrayHelper.Find<IFixator>(fixators, p => p.FixatorState == FixatorStateEnum.Locking);
            if (lockedFixator == null)//所有的固定器都被打开
            {
                currentFixedState = FixedStateEnum.Free;
                SetInteractable(true);//开启交互
            }
            else
            {
                currentFixedState = FixedStateEnum.HalfFixed; //部分固定器被打开了  变为半紧固状态
            }
        }
        else if (fixatorState == FixatorStateEnum.Locking)//固定器锁上时 判定是否固定物体
        {
            if (onFixedPos)//在正确位置 
            {
                SetInteractable(false);//关闭交互
            }
            IFixator lockedFixator = ArrayHelper.Find<IFixator>(fixators, p => p.FixatorState == FixatorStateEnum.UnLocking);
            if (lockedFixator == null)//所有的固定器都锁上了
            {
                currentFixedState = FixedStateEnum.Fixed;
            }
            else//部分固定器锁上了
            {
                currentFixedState = FixedStateEnum.HalfFixed; // 半紧固状态
            }
        }
    }

    //初始化固定器 注册固定器状态变化事件
    public void InitFixator(IFixator[] fixators)
    {
        this.fixators = fixators;
        for (int i = 0; i < fixators.Length; i++)
        {
            fixators[i].ReisterStateChanged(FixatorChanged);
        }
    }

    //改变物体可交互状态
    public virtual void SetInteractable(bool interactable)
    {
        interactableObject.isGrabbable = false;
    }
  
    //被抓取物体放下时执行
    public abstract void UnGrabbed();

    //被抓取时执行
    public abstract void Grabbed();


    //到达安装位置 起到遮挡/固定作用
    public void Locking()
    {
       
    }

    //到达开启位置  移除遮挡/固定作用
    public void UnLocking()
    {
     
    }

    public void SetUseInteractable(bool interactable)
    {
        interactableObject.isUsable = false;
    }
}