test/Assets/scrpts/Points.cs

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

public class Points : MonoBehaviour
{
    [HideInInspector] public Counter counter;
    [Header("Число очков")]
    [SerializeField] private int points=0;
    [Header("Число здоровья (от 0 до 100)")]
    [SerializeField] private int health=0;
    [HideInInspector]
    public hp HP;

    private void Start()
    {
        counter = FindObjectOfType<Counter>();
        HP = GameObject.FindGameObjectWithTag("Player").GetComponent<hp>();
    }

    private void OnTriggerStay2D(Collider2D other)
    {
        HP.SetHealth(health);
        counter.total += points;
        Destroy(this.gameObject);
    }
}