[英]Why the object is not rotating towards the other object?
using System.Collections;
using System.Collections.Generic;
using TMPro;
using UnityEngine;
using UnityEngine.UI;
using UnityStandardAssets.Characters.ThirdPerson;
public class DistanceCheck : MonoBehaviour
{
public Transform target;
public float lerpDuration;
public float rotationSpeed;
public GameObject descriptionTextImage;
public TextMeshProUGUI text;
public ThirdPersonUserControl thirdPersonusercontrol;
private Animator anim;
private float timeElapsed = 0;
private float startValue = 1;
private float endValue = 0;
private float valueToLerp = 0;
private bool startRot = false;
// Start is called before the first frame update
void Start()
{
anim = transform.GetComponent<Animator>();
}
// Update is called once per frame
void Update()
{
if(startRot)
{
transform.rotation = Quaternion.RotateTowards(transform.rotation,
target.rotation, rotationSpeed * Time.deltaTime);
}
}
private void OnTriggerExit(Collider other)
{
if (other.name == "Colliding Area")
{
StartCoroutine(SlowDown());
}
}
IEnumerator SlowDown()
{
while (timeElapsed < lerpDuration)
{
valueToLerp = Mathf.Lerp(startValue, endValue, timeElapsed / lerpDuration);
anim.SetFloat("Forward", valueToLerp);
timeElapsed += Time.deltaTime;
yield return null;
}
thirdPersonusercontrol.enabled = false;
descriptionTextImage.SetActive(true);
yield return new WaitForSeconds(3f);
startRot = true;
}
}
我使用了一個斷點,當 startRot 為 true 時,它會到達 Update 中的 Quaternion.RotateTowards 行,rotationSpeed 為 5,但變換根本不旋轉。
我希望變換將旋轉 180 度,或者變換向前看的均勻角度應該旋轉回目標。
變換和目標都面向相同的方向,但變換仍然沒有向目標旋轉。
如果我在運行時自行更改變換旋轉,它會旋轉,但是當它到達更新時,它根本不會旋轉。
Quaternion.RotateTowards
將一個旋轉改變為另一個旋轉,如果兩個對象面向相同的方向,它們具有相同的旋轉,所以什么都不會改變。
如果您希望對象面向目標,則需要使用Quaternion.LookRotation
創建的旋轉。
transform.rotation = Quaternion.RotateTowards(transform.rotation,
Quaternion.LookRotation(target.position - transform.position),
rotationSpeed * Time.deltaTime);
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