133 lines
3.7 KiB
C#
133 lines
3.7 KiB
C#
using UnityEngine;
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using System; // 必须引入 System 命名空间以使用 Action
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using System.Collections;
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public class YAxisRotator : MonoBehaviour
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{
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[Header("旋转设置")]
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[Tooltip("旋转速度，度数/秒")]
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public float rotationSpeed = 90f;
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[Tooltip("判断是否到达目标角度的误差范围 (度)")]
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public float angleThreshold = 0.5f;
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private Coroutine _currentRotationCoroutine = null;
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private float _targetAngle = 0f;
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void Start()
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{
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_targetAngle = transform.localEulerAngles.y;
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}
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/// <summary>
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/// 方法1：旋转到180度
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/// </summary>
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/// <param name="onComplete">旋转完成后（或无需旋转时）执行的回调函数</param>
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public void RotateTo180(Action onComplete = null)
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{
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// 检查是否已经接近180度
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if (IsAngleClose(180f))
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{
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Debug.Log($"[{gameObject.name}] 已经在180度附近，跳过旋转，直接触发回调。");
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_targetAngle = 180f;
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// 【修改点】即使无需旋转，也立即触发回调
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onComplete?.Invoke();
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return;
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}
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// 如果正在旋转，先打断之前的旋转
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if (_currentRotationCoroutine != null)
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{
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StopCoroutine(_currentRotationCoroutine);
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// 注意：被打断的旧旋转不会触发回调，只有最终完成的那个会触发
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}
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_targetAngle = 180f;
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_currentRotationCoroutine = StartCoroutine(RotateRoutine(180f, onComplete));
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}
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/// <summary>
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/// 方法2：旋转到0度
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/// </summary>
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/// <param name="onComplete">旋转完成后（或无需旋转时）执行的回调函数</param>
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public void RotateTo0(Action onComplete = null)
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{
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// 检查是否已经接近0度
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if (IsAngleClose(0f))
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{
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Debug.Log($"[{gameObject.name}] 已经在0度附近，跳过旋转，直接触发回调。");
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_targetAngle = 0f;
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// 【修改点】即使无需旋转，也立即触发回调
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onComplete?.Invoke();
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return;
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}
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if (_currentRotationCoroutine != null)
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{
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StopCoroutine(_currentRotationCoroutine);
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}
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_targetAngle = 0f;
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_currentRotationCoroutine = StartCoroutine(RotateRoutine(0f, onComplete));
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}
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/// <summary>
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/// 核心协程：执行平滑旋转
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/// </summary>
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private IEnumerator RotateRoutine(float targetY, Action onComplete)
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{
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while (true)
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{
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Vector3 currentEuler = transform.localEulerAngles;
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float currentY = currentEuler.y;
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// 计算最短路径角度差
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float delta = Mathf.DeltaAngle(currentY, targetY);
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// 到达目标判断
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if (Mathf.Abs(delta) <= angleThreshold)
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{
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transform.localRotation = Quaternion.Euler(0, targetY, 0);
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// 旋转结束，触发回调
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onComplete?.Invoke();
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_currentRotationCoroutine = null;
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yield break;
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}
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float step = rotationSpeed * Time.deltaTime;
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// 最后一步修正
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if (Mathf.Abs(delta) < step)
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{
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transform.localRotation = Quaternion.Euler(0, targetY, 0);
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// 旋转结束，触发回调
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onComplete?.Invoke();
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_currentRotationCoroutine = null;
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yield break;
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}
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// 执行旋转
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float newY = currentY + Mathf.Sign(delta) * step;
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transform.localRotation = Quaternion.Euler(0, newY, 0);
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yield return null;
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}
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}
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/// <summary>
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/// 辅助判断角度是否接近
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/// </summary>
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private bool IsAngleClose(float target)
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{
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float currentY = transform.localEulerAngles.y;
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float delta = Mathf.DeltaAngle(currentY, target);
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Debug.Log(delta);
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return Mathf.Abs(delta) <= angleThreshold;
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}
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} |