我对 Unity 非常陌生，正在为 Oculus Go 构建 VR 应用程序。我想通过将 Controller 的光线指向对象来拾取和移动对象，然后通过按下触发按钮来拾取或释放它。我希望对象保持固定在射线位置的末端，而不是突然到达 Controller 上。我使用这个脚本创建了一条射线，基本上允许 Controller 拾取它，但是这个脚本将对象移动到 Controller 的位置，因此我只能在一个圆圈内(360 度)移动对象。由于对象继续漂浮，因此它也无法正确放下对象。
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerPointer : MonoBehaviour {
//Returns whatever object is infrount of the controller
private GameObject pointerOver;
[SerializeField]
//Is the object that is currently intractable
private PropBase selectedObject;
//Is the object currently stored in hand, ready to throw.
[SerializeField]
private PickUp inHand;
//This is a refrance to the object we want the pointer to be cast from.
[SerializeField]
public Transform controllerRef;
//This is where we want object we are holding to appear
[SerializeField]
private Transform holdingRef;
//The amount of force we want to throw objects from our hand with.
[SerializeField]
[Range(2,12)]
private float throwForce = 10;
//The script that handles the visuals to show what object is selected
[SerializeField]
private HighlightObject selectVisual;
private LineRenderer line;
void Start () {
line = GetComponent<LineRenderer> ();
}
void Update () {
//If a object is currently being held I don't want to select another
object until it is thrown.
if (inHand == null) {
WorldPointer ();
} else {
line.SetPosition (0, controllerRef.position);
line.SetPosition (1, controllerRef.position);
pointerOver = null;
}
//This function handles how you intract with selected objects
Intract ();
}
//This function handles shooting a raycast into the world from the
controller to see what can be intracted with.
void WorldPointer(){
//We set the line visual to start from the controller.
line.SetPosition (0, controllerRef.position);
RaycastHit hit;
//We reset the pointer so things don't stay selected when we are
pointing at nothing.
pointerOver = null;
//This sends a line from the controller directly ahead of it, it returns
true if it hits something. Using the RaycastHit we can then get information
back.
if (Physics.Raycast (controllerRef.position, controllerRef.forward, out
hit)) {
//Beacuse raycast is true only when it hits anything, we don't need
to check if hit is null
//We set pointerOver to whatever object the raycast hit.
pointerOver = hit.collider.gameObject;
//We set the line visual to stop and the point the raycast hit the
object.
line.SetPosition (1, hit.point);
//Here we check if the object we hit has the PropBase component, or
a child class of its.
if (pointerOver.GetComponent<PropBase> ()) {
//We set the object to be highlighted
selectVisual.NewObject (pointerOver);
} else {
selectVisual.ClearObject ();
}
} else {
//If the raycast hits nothing we set the line visual to stop a
little bit infrount of the controller.
line.SetPosition (1, controllerRef.position + controllerRef.forward
* 10);
selectVisual.ClearObject ();
}
Debug.DrawRay(controllerRef.position , controllerRef.forward *
10,Color.grey);
}
void Intract(){
//We set up the input "OculusTouchpad" in the Input manager
if (Input.GetButtonDown ("Jump") || OVRInput.GetDown
(OVRInput.Button.PrimaryTouchpad)) {
selectVisual.ClearObject ();
//Check if you are holding something you can throw first
if (inHand != null) {
inHand.Release (controllerRef.forward, throwForce);
inHand = null;
//We do this check here to prevent Errors if you have nothing
selected
} else if (selectedObject != null) {
//Check if you can pick up the selected object second
if (selectedObject.GetComponent<PickUp> ()) {
//Beacuse PickUp is a child of PropBase, we can ask InHand
to store selectedObject as PickUp, rather than use GetComponent
inHand = selectedObject as PickUp;
inHand.Store (holdingRef);
//If non of the above were valid then simple call the
trigger function of the selected object
} else {
selectedObject.Trigger ();
}
}
//If you have a object that you need to hold down a button to
intract with
} else if (Input.GetButton ("Jump") && selectedObject != null ||
OVRInput.Get (OVRInput.Button.PrimaryTouchpad) && selectedObject != null) {
selectedObject.Pulse ();
//When you are not pressing down the touchpad button, the selected
object can be updated
} else if (pointerOver != null) {
if (pointerOver.GetComponent<PropBase> ()) {
selectedObject = pointerOver.GetComponent<PropBase> ();
} else {
selectedObject = null;
}
} else {
selectedObject = null;
}
}
}
我已将此脚本附加到我想要选择的对象上:
public class PickUp : PropBase
{
private Rigidbody rb;
void Start()
{
rb = GetComponent<Rigidbody>();
}
public virtual void Store(Transform NewParent)
{
//The following stops the object being effected by physics while it's in
the players hand
rb.isKinematic = true;
//And fixes it to the new parent it is given by the player script to
follow.
transform.parent = NewParent;
//It then resets it's position and rotation to match it's new parent
object
transform.localRotation = Quaternion.identity;
transform.localPosition = Vector3.zero;
}
public virtual void Release(Vector3 ThrowDir, float ThrowForce)
{
//On Release the object is made to be effected by physics again.
rb.isKinematic = false;
//Free itself from following it's parent object
transform.parent = null;
//And applies a burst of force for one frame to propel itself away from
the player.
rb.AddForce(ThrowDir * ThrowForce, ForceMode.Impulse);
}
}
我希望看到的是球体的位置根据光线末端的转换位置而变化。
我还将此脚本附加到播放器 Controller ，这允许它通过指向某个点并按下触摸板按钮来移动到该点。
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class ClickToMove : MonoBehaviour
{
private Vector3 targetPos; //This Vector3 will store the position where we
click to move.
private bool Moving = false; /*This bool keeps track of whether we are in
the process of moving or not.*/
private GameObject targetInstance;
/*The variables we want to customize. Added info headers to these for the
Unity Editor.*/
[Header("Our Go controller object")]
public GameObject goController;
[Header("Movement Speed")]
public float speed = 1;
[Header("Stop When This Far Away From Target")]
public float haltDistance = 0;
[Header("Optional Target Object")]
public GameObject targetObj;
void Update()
{
MoveToTarget(); /*Here we simply run our MoveToTarget method in the
Update method.*/
//That way we don't clutter up the Update method with too much code.
}
void MoveToTarget() //Here we do the cluttering instead.
{
var ray = new Ray(goController.transform.position,
goController.transform.forward); /*Create a ray going from the goController
position and in the Forward direction of the goController.*/
RaycastHit hitInfo; //Store info about what the ray hits.
Physics.Raycast(ray, out hitInfo, 100);
if (OVRInput.GetUp(OVRInput.Button.PrimaryTouchpad)) /*If we release the
trigger..*/
{
targetPos = hitInfo.point; /*Make our targetPos assume the
positional value of the hit point.*/
if (targetObj) /*If we have specified a Target Object to mark where
we click*/
//If we didn't, then we don't want to try to instantiate it.
{
if (targetInstance) /*If there is already a Target Object in the
scene.*/
{
Destroy(targetInstance); //Destroy it.
}
targetInstance = Instantiate(targetObj, targetPos,
transform.rotation); //Create our Target object at the position we clicked.
}
Moving = true; //And finally we set Moving to True.
}
if (Moving == true) //Since Moving is now true
{
transform.position = Vector3.MoveTowards(transform.position, new
Vector3(targetPos.x, transform.position.y, targetPos.z), speed *
Time.deltaTime); /*Transform our x and z position to move towards the
targetPos.*/
/*Note that our y position is kept at default transform position
since we only want to move along the ground plane.*/
}
if (Vector3.Distance(transform.position, targetPos) <= haltDistance + 1)
/*Check proximity to targetPos. Mainly useful to keep your player from
setting a target position right next to say a building and then end up
clipping through half of it.*/
{
if (targetInstance) //If we created a Target Object..
{
Destroy(targetInstance); //Then we want to destroy it when we
reach it.
}
Moving = false; //Since we have now arrived at our target
//destination.
}
}
}
如果有人能指出我正确的方向或帮助我，我将不胜感激!
提前致谢。
最佳答案
好的，根据您更新的问题，现在可以尝试回答。
首先 - 您是否尝试过不将 BaseProp localPosition 重置为 Controller 的？ 尝试注释显示
的行transform.localPosition = Vector3.zero;
这仍然会定向对象并将其作为 Controller 的父级，但会将其锁定在相对于父级设置时刻的位置。
您当前使用“holdingRef”对象作为该对象出现的位置。您可能想使用“controllerRef”。
要改变对象出现的距离，您可以将对象位置设置为:
controllerRef.position+ distance*controllerRef.forward
因为这是您发射光线转换的方向。通过查询hit.distance可以得到命中距离。
如果由于任何原因对您不起作用，则光线转换击中碰撞体的点在 HitInfo 中可用，因此使用 hit.point 您可以提取击中位置并相对于该点定位对象。 hitinfo 的另一个非常有用的属性是 .normal，它使您能够获得命中发生的方向。 您可以将该信息与 Store 方法一起传递。
关于c# - 眼珠Go : Picking up/Moving object，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/53042819/