steamvr 3d物体交互代码

以下是一个简单的SteamVR 3D物体交互代码示例，使用了Unity和SteamVR插件：

using UnityEngine;
using System.Collections;
using Valve.VR;

public class ObjectInteraction : MonoBehaviour
{
    public SteamVR_Input_Sources handType; // 左手或右手
    public SteamVR_Action_Boolean grabAction; // 抓取动作
    public SteamVR_Action_Boolean throwAction; // 抛出动作

    private GameObject collidingObject; // 当前碰撞的物体
    private GameObject objectInHand; // 当前手中的物体

    // 当物体进入碰撞器时，将其设置为当前碰撞的物体
    private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.CompareTag("Interactable"))
        {
            collidingObject = other.gameObject;
        }
    }

    // 当物体离开碰撞器时，将当前碰撞的物体设为空
    private void OnTriggerExit(Collider other)
    {
        if (other.gameObject.CompareTag("Interactable"))
        {
            collidingObject = null;
        }
    }

    private void Update()
    {
        // 抓取物体
        if (grabAction.GetLastStateDown(handType))
        {
            if (collidingObject)
            {
                GrabObject();
            }
        }

        // 抛出物体
        if (throwAction.GetLastStateDown(handType))
        {
            if (objectInHand)
            {
                ReleaseObject();
            }
        }
    }

    // 抓取物体
    private void GrabObject()
    {
        objectInHand = collidingObject;
        collidingObject = null;

        var joint = AddFixedJoint();
        joint.connectedBody = objectInHand.GetComponent<Rigidbody>();
    }

    // 添加FixedJoint组件
    private FixedJoint AddFixedJoint()
    {
        FixedJoint fx = gameObject.AddComponent<FixedJoint>();
        fx.breakForce = 20000;
        fx.breakTorque = 20000;
        return fx;
    }

    // 释放物体
    private void ReleaseObject()
    {
        if (GetComponent<FixedJoint>())
        {
            GetComponent<FixedJoint>().connectedBody = null;
            Destroy(GetComponent<FixedJoint>());

            objectInHand.GetComponent<Rigidbody>().velocity = 
                SteamVR_Input.GetAction<SteamVR_Action_Vector2>("Squeeze").axis
                * SteamVR_Input.GetAction<SteamVR_Action_Boolean>("GrabPinch").stateDown
                * SteamVR_Input.GetAction<SteamVR_Action_Boolean>("GrabGrip").stateDown
                * 10f;

            objectInHand.GetComponent<Rigidbody>().angularVelocity = 
                SteamVR_Input.GetAction<SteamVR_Action_Vector2>("Touchpad").axis
                * SteamVR_Input.GetAction<SteamVR_Action_Boolean>("GrabPinch").stateDown
                * SteamVR_Input.GetAction<SteamVR_Action_Boolean>("GrabGrip").stateDown
                * 10f;

            objectInHand = null;
        }
    }
}

这段代码假设您已经设置好了SteamVR插件和控制器，将此脚本添加到控制器物体上，将“手类型”设置为左手或右手，将“抓取动作”和“抛出动作”设置为您在控制器上使用的实际手势动作。当手部进入物体的触发器时，它将被标记为“当前碰撞的物体”，然后您可以使用“抓取动作”将其抓起，并使用“抛出动作”将其释放。当您释放物体时，它将获得一些速度和角速度，以模拟您实际释放物体时的动作。