IT'S Health script

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Healthship : MonoBehaviour
{
    public int maxhealth = 100;
    public int health;


    void Start()
    {
        health = maxhealth;
    }


    void FixUpdate()
    {
        maxhealth = health;
        if (health < 0)
        { health = 0; }
        if (health <= 0)
        { Destroy(gameObject); }

    }
    void Update()
    {
        Debug.Log(health);
    }
}




IT'S Damage script


using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class damage : MonoBehaviour
{
    public Healthship hp;
    public int damag = 10;
    void Start()
    {

    }
    void OnCollisionEnter(Collision col)
    {

        if (col.gameObject.tag == "Ship")
        {
            hp.health -= damag;

        }
        if (hp.health <= 0)
        {
            Destroy(gameObject);
        }
    }
}