123 lines
3.0 KiB
C#
123 lines
3.0 KiB
C#
using UnityEngine;
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using DG.Tweening;
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/// <summary>
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/// 物体飞到玩家面前 + 可选始终面向玩家 + 飞回原位
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/// </summary>
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public class FlyFollowToPlayer : MonoBehaviour
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{
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[Header("玩家摄像机")]
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public Transform playerCamera;
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[Header("停留距离")]
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public float distance = 0.8f;
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[Header("高度偏移")]
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public float heightOffset = -0.1f;
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[Header("平滑跟随速度")]
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public float followSmooth = 6f;
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[Header("视线锁定阈值（角度）")]
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public float viewLockAngle = 5f;
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[Header("是否始终面向玩家")]
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public bool alwaysFacePlayer = true;
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private bool isFlying = false;
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private bool isFollow = false;
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private Vector3 targetPos;
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/// <summary>原始位置与旋转（回展台）</summary>
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private Vector3 originPos;
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private Quaternion originRot;
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void Start()
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{
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originPos = transform.position;
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originRot = transform.rotation;
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}
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void Update()
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{
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if (!isFollow) return;
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// 计算目标位置（始终在视线前方）
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targetPos = playerCamera.position
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+ playerCamera.forward * distance
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+ Vector3.up * heightOffset;
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// 判断是否在视线正前
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Vector3 dir = (transform.position - playerCamera.position).normalized;
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float angle = Vector3.Angle(playerCamera.forward, dir);
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// 已在视线范围内则停止位置修正，但如果需要朝向玩家，则继续朝向
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if (angle >= viewLockAngle)
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{
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// 平滑移动
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transform.position = Vector3.Lerp(
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transform.position,
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targetPos,
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Time.deltaTime * followSmooth
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);
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}
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// 是否面向玩家
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if (alwaysFacePlayer)
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{
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transform.LookAt(playerCamera);
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}
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}
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/// <summary>
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/// 物体飞到玩家面前
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/// </summary>
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public void FlyToPlayer()
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{
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if (isFlying) return;
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isFlying = true;
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targetPos = playerCamera.position
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+ playerCamera.forward * distance
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+ Vector3.up * heightOffset;
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transform.DOMove(targetPos, 1f)
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.SetEase(Ease.OutBack)
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.OnComplete(() =>
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{
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isFollow = true;
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isFlying = false;
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});
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}
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/// <summary>
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/// 停止跟随玩家（不再更新位置）
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/// </summary>
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public void StopFollow()
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{
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isFollow = false;
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}
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/// <summary>
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/// 物体飞回展台原位
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/// </summary>
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public void FlyBackToOrigin()
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{
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isFollow = false; // 停止跟随玩家
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isFlying = true;
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transform.DOKill(); // 停止其他动画，避免冲突
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transform.DOMove(originPos, 1f)
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.SetEase(Ease.InOutQuad);
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transform.DORotateQuaternion(originRot, 1f)
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.SetEase(Ease.InOutQuad)
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.OnComplete(() =>
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{
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isFlying = false;
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});
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}
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}
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