Unity 3D漂浮物（转载）

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
/// <summary>
/// 物品浮动效果
/// </summary>
public class TestItemFloat : MonoBehaviour
{
    //漂浮幅度
    public float speed = 1f;
    //漂浮范围X,Y,Z
    public Vector3 offsetXYZ = new Vector3(1, 1, 1);
    //原点
    private Vector3 originalPos;
 
    void Start()
    {
        if (speed <= 0)
        {
            speed = 1f;
        }
        //获取原点
        originalPos = transform.localPosition;
    }
 
    void Update()
    {
        //根据三角函数以时间为变化量模拟浮动效果(看个人喜好如何偏移但是乘上的值必须要在[-1,1]合理范围内变化)
        transform.localPosition = originalPos + new Vector3(offsetXYZ.x * Mathf.Sin(Time.time * speed), offsetXYZ.y * Mathf.Cos(Time.time * speed) * Mathf.Sin(Time.time * speed), offsetXYZ.z * Mathf.Cos(Time.time * speed));
    }
}

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