Unity2D 伤害数值随战斗单位移动并自动销毁

using System.Collections;
using UnityEngine;

public class MoveObjects : MonoBehaviour
{
    public GameObject objectA; // 物体A
    public GameObject objectB; // 物体B

    private float initialB_Y; // 物体B的初始Y坐标
    private float bMoveDistance = 100f; // 物体B需要移动的距离
    private float bMoveSpeed = 30f; //移动的速度
    private float aMoveSpeed = 40f; //移动的速度

    void Start()
    {
        StartCoroutine(DestoryB());
    }

    void Update()
    {

    }

    /// <summary>
    /// A物体移动
    /// </summary>
    void AMove()
    {
        objectA.transform.localPosition += new Vector3(bMoveSpeed * Time.deltaTime, 0, 0);
    }

    /// <summary>
    /// B物体跟随A移动
    /// </summary>
    void BFlowA()
    {
        Vector3 newBLocalPosition = objectB.transform.localPosition;
        newBLocalPosition.x = objectA.transform.localPosition.x;
        newBLocalPosition.y += aMoveSpeed * Time.deltaTime;
        objectB.transform.localPosition = newBLocalPosition;
    }

    /// <summary>
    /// B物体跟随A移动的同时，也往上移动，移动到一定距离自动销毁
    /// </summary>
    /// <returns></returns>
    IEnumerator DestoryB()
    {
        // 记录物体B的初始Y坐标
        initialB_Y = objectB.transform.localPosition.y;

        while (objectB.transform.localPosition.y - initialB_Y < bMoveDistance)
        {
            AMove();
            BFlowA();
            yield return new WaitForEndOfFrame();
        }
        Destroy(objectB);
    }
}