快速開發實用工具VRTK-006

006_Controller_UsingADoor

打開門

在左右手柄上掛載，VRTK_ControllerEvents、VRTK_Interact Touch、VRTK_Interact Grab和VRTK_Interact Use。如下圖所示：

然後在門上掛載腳本Openable_Door，繼承自VRTK_Interactable Object。在抓取的四個腳本添加之後，又添加了VRTK_Interact Use（按下控制器上默認的扳機鍵來使用一個對象，釋放該按鈕停止使用該對象）。
在與可交互對象產生交互時，對象上往往需要一個腳本組件，該組件既可以使VRTK_InteractableObject,也可以是繼承於該類的子類。Openable_Door就是VRTK_InteractableObject的子類。

 

namespace VRTK.Examples
{
    using UnityEngine;
    //

    public class Openable_Door : VRTK_InteractableObject
    {
        //控制打開門的方向
        public bool flipped = false;
        public bool rotated = false;

        private float sideFlip = -1;
        private float side = -1;
        private float smooth = 270.0f;
        private float doorOpenAngle = -90f;
        private bool open = false;
        /// <summary>
        /// 關閉狀態下的旋轉（0，0，0）
        /// </summary>
        private Vector3 defaultRotation;
        /// <summary>
        /// 保存打開狀態下的旋轉
        /// </summary>
        private Vector3 openRotation;
        /// <summary>
        /// 當打開門觸發時，執行的回調函數
        /// </summary>
        /// <param name="usingObject"></param>
        public override void StartUsing(VRTK_InteractUse usingObject)
        {
            base.StartUsing(usingObject);
            SetDoorRotation(usingObject.transform.position);
            SetRotation();
            open = !open;
        }

        protected void Start()
        {
            //初始狀態下門的旋轉（0，0，0）
            defaultRotation = transform.eulerAngles;
            SetRotation();
            sideFlip = (flipped ? 1 : -1);
        }

        protected override void Update()
        {
            base.Update();
            if (open)
            {
                transform.rotation = Quaternion.RotateTowards(transform.rotation, Quaternion.Euler(openRotation), Time.deltaTime * smooth);
            }
            else
            {
                transform.rotation = Quaternion.RotateTowards(transform.rotation, Quaternion.Euler(defaultRotation), Time.deltaTime * smooth);
            }
        }
        /// <summary>
        /// 計算打開門的旋轉角度
        /// </summary>
        private void SetRotation()
        {
            openRotation = new Vector3(defaultRotation.x, defaultRotation.y + (doorOpenAngle * (sideFlip * side)), defaultRotation.z);
        }
        /// <summary>
        /// 控制門的打開方向
        /// </summary>
        /// <param name="interacterPosition"></param>
        private void SetDoorRotation(Vector3 interacterPosition)
        {
            side = ((rotated == false && interacterPosition.z > transform.position.z) || (rotated == true && interacterPosition.x > transform.position.x) ? -1 : 1);
        }
    }
}