59 lines
1.7 KiB
C#
59 lines
1.7 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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namespace MyFrameworkPure
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{
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/// <summary>
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/// 像子物体一样跟随目标
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/// 要确保上层物体缩放是等比的,否则旋转时可能会发生缩放扭曲
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/// </summary>
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public class FollowLikeChild : MonoBehaviour
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{
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private Vector3 relativePos;
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private Quaternion relativeRot;
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[SerializeField] private Transform target;
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[SerializeField] private bool tween = false;
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[SerializeField] private float rotSpeed = 90;
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[SerializeField] private float moveSpeed = 1;
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// Start is called before the first frame update
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void Start()
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{
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if (target != null)
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{
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Target = target;
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}
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}
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// Update is called once per frame
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void LateUpdate()
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{
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if (target == null)
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return;
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Vector3 pos = target.TransformPoint(relativePos);
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Quaternion rot = relativeRot * target.rotation;
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transform.position = tween ? Vector3.Lerp(transform.position, pos, Time.deltaTime * moveSpeed) : pos;
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transform.rotation = tween ? Quaternion.Lerp(transform.rotation, rot, Time.deltaTime * rotSpeed) : rot;
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}
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/// <summary>
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/// 目标变换
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/// </summary>
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public Transform Target
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{
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get => target;
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set
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{
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target = value;
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relativePos = target.InverseTransformPoint(transform.position);
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relativeRot = Quaternion.Inverse(target.rotation) * transform.rotation;
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}
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}
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}
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}
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