我更改了标题以反映添加的澄清信息。
我正在遵循 [Unity 教程][1]，当需要测试播放器单击控件时，Unity 给出了一个错误：
“SetDestination”只能在已放置在导航网格上的活动代理上调用。
据我所知，我的代理处于活动状态并且位于 navMesh 上，因此这有点令人困惑。我尝试过重新烘焙 navMesh 并重新定位代理，但两者都不起作用。
到目前为止我发现的所有问题都表明提问者根本没有导航网格，所以......是的......不是很有帮助。任何有关如何解决此问题的建议都将受到赞赏。
EDIT:我刚刚添加了一个快速Debug.Log(agent.isOnNavMesh);我的代码&低&看它的评估结果是true。窥视混乱。
private void Start()
{
Debug.Log(agent.isOnNavMesh); //Evaluates *true*
agent.updateRotation = false;
inputHoldWait = new WaitForSeconds(inputHoldDelay);
destinationPosition = transform.position;
}
EDIT-2放一样的Debug.Log(agent.isOnNavMesh);进入我的public void OnGroundClickfxn 且计算结果为false点击后。开始产生好奇的困惑。
这是由 Unity 事件系统调用的：
public void OnGroundClick(BaseEventData data)
{
Debug.Log(agent.isOnNavMesh); //Evaluates *FALSE*
PointerEventData pData = (PointerEventData)data;
NavMeshHit hit;
//Click World Position, hit info, sample distance, navMesh areas to use
if (NavMesh.SamplePosition(pData.pointerCurrentRaycast.worldPosition, out hit, navMeshSampleDistance, NavMesh.AllAreas))
{
destinationPosition = hit.position;
}
else
{
destinationPosition = pData.pointerCurrentRaycast.worldPosition;
}
//give the agent it's destination
agent.SetDestination(destinationPosition);
agent.isStopped = false;
}
EDIT-3
I put Debug.Log(agent.isOnNavMesh); in to private void Update()，它评估为true即使在 Click 调用之后也会继续这样做public void OnGroundClick.
在开始时禁用然后启用代理OnGroundClick不影响局势
尽管我仍然不知所措，但我至少更接近解决方案并且有更多信息“这不行，请帮忙！” now.
这是完整上下文中的代码：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.AI;
public class PlayerMovement : MonoBehaviour
{
public Animator animator; //Reference to animator
public NavMeshAgent agent; //Reference to NavMeshAgent
public float inputHoldDelay = 0.5f; //Delay player ability to control character while interacting with interactable object
public float turnSpeedThreshold = 0.5f; //minimum speed before character will turn
public float speedDampTime = 0.1f; //Character rate acceleration
public float slowingSpeed = 0.175f; //Character rate of neg accel
public float turnSmoothing = 15; //Character rotational speed
private WaitForSeconds inputHoldWait; //Coroutine Wait timer to delay player input while interacting with interactable object
private Vector3 destinationPosition; //Player designated destination for the agent to pursue
private const float stopDistanceProportion = 0.1f;
private const float navMeshSampleDistance = 4f;
private readonly int hashSpeedParam = Animator.StringToHash("Speed");
private void Start()
{
Debug.Log(agent.gameObject.name); //Is the "Player" object
Debug.Log(agent.isOnNavMesh); //Evaluates *true*
agent.updateRotation = false;
inputHoldWait = new WaitForSeconds(inputHoldDelay);
destinationPosition = transform.position;
}
private void OnAnimatorMove()
{
//Velocity = Distance over Time, where Distance = change in position between frames & Time = time between frames
agent.velocity = animator.deltaPosition / Time.deltaTime;
}
private void Update()
{
Debug.Log(agent.isOnNavMesh); //Evaluates *true*
//If path pending, do nothing
if (agent.pathPending)
return;
float speed = agent.desiredVelocity.magnitude;
if (agent.remainingDistance <= agent.stoppingDistance * stopDistanceProportion)
{
Stopping(out speed);
}
else if (agent.remainingDistance <= agent.stoppingDistance)
{
Slowing(agent.remainingDistance, out speed);
}
else if(speed > turnSpeedThreshold)
{
Moving();
}
animator.SetFloat(hashSpeedParam, speed, speedDampTime, Time.deltaTime);
}
private void Stopping(out float speed)
{
agent.isStopped = true;
transform.position = destinationPosition;
speed = 0.0f;
}
private void Slowing(float distanceToDestination, out float speed)
{
agent.isStopped = true;
transform.position = Vector3.MoveTowards(transform.position, destinationPosition, slowingSpeed * Time.deltaTime);
float proportionalDistance = 1f - distanceToDestination / agent.stoppingDistance;
speed = Mathf.Lerp(slowingSpeed, 0, proportionalDistance);
}
private void Moving()
{
Quaternion targetRotation = Quaternion.LookRotation(agent.desiredVelocity);
transform.rotation = Quaternion.Lerp(transform.rotation, targetRotation, turnSmoothing * Time.deltaTime);
}
public void OnGroundClick(BaseEventData data)
{
agent.enabled = false; //Disabling then enabling the agent...
agent.enabled = true; //does not change anything.
Debug.Log(agent.gameObject.name); //Is the "Player" object
Debug.Log(agent.isOnNavMesh); //Evaluates *FALSE*
PointerEventData pData = (PointerEventData)data;
NavMeshHit hit;
//Click World Position, hit info, sample distance, navMesh areas to use
if (NavMesh.SamplePosition(pData.pointerCurrentRaycast.worldPosition, out hit, navMeshSampleDistance, NavMesh.AllAreas))
{
destinationPosition = hit.position;
}
else
{
destinationPosition = pData.pointerCurrentRaycast.worldPosition;
}
//give the agent it's destination
agent.SetDestination(destinationPosition);
agent.isStopped = false;
}
}
