Lesson UI (script UI)

gistfile1.txt

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using DG.Tweening;
using UnityEngine.Events;

public class UI : MonoBehaviour
{
    [SerializeField] private Button _attackButton;
    [SerializeField] private Button _healButton;
    [SerializeField] private Slider _healthSlider;
    [SerializeField] private Text _currentHealthLabel;
    [SerializeField] private Text _maxHealthLabel;
    [SerializeField] private Player _player;

    private int _damage;
    private int _healAmount;

    private void Start()
    {
        _damage = 10;
        _healAmount = 10;
    }

    private void OnEnable()
    {
        _player.HealthChanged += OnHealthChanged;
        _attackButton.onClick.AddListener(OnAttackButtonPressed);
        _healButton.onClick.AddListener(OnHealButtonPressed);
    }

    private void OnDisable()
    {
        _attackButton.onClick.RemoveListener(OnAttackButtonPressed);
        _healButton.onClick.RemoveListener(OnHealButtonPressed);   
    }

    private void OnAttackButtonPressed()
    {
        _player.ChangeHealth(-_damage);
    }

    private void OnHealButtonPressed()
    {
        _player.ChangeHealth(_healAmount);
    }

    private void OnHealthChanged(int value, int maxValue)
    {
        float sliderValue = (float)value / maxValue;

        _healthSlider.DOValue(sliderValue, 1);

        _maxHealthLabel.text = "Максимальное здоровье: " + maxValue.ToString();
        _currentHealthLabel.text = "Текущее здоровье: " + value.ToString();
    }
}