Health

using UniRx;
using UnityEngine;

public class Health : MonoBehaviour
{
    [SerializeField] private int _maxHealth = 100;
    public GameObject Owner { get; set; }


    public int MaxHealth
    {
        get => _maxHealth;
        set => _maxHealth = value;
    }

    private int _currentHealth;

    public int CurrentHealth
    {
        get => _currentHealth;
        private set
        {
            _currentHealth = Mathf.Clamp(value, 0, MaxHealth);

            OnValueChanged.OnNext(Value);
        }
    }

    public float Value => _maxHealth != 0 ? (float) _currentHealth / _maxHealth : 0f;
    public bool IsEmpty => Value == 0f;
    public Subject<float> OnValueChanged { get; } = new Subject<float>();
    public Subject<Health> OnEmpty { get; } = new Subject<Health>();
    public Subject<GameObject> OnDamaged { get; } = new Subject<GameObject>();

    private void OnEnable()
    {
        ResetCurrentHealth();
    }

    public void TakeDamage(int damage, GameObject damageOwner = null)
    {
        CurrentHealth -= damage;

        OnDamaged.OnNext(damageOwner);

        if (CurrentHealth == 0)
        {
            OnEmpty.OnNext(this);
        }
    }

    public void ResetCurrentHealth()
    {
        CurrentHealth = MaxHealth;
    }

    [ContextMenu("Kill")]
    private void Kill()
    {
        TakeDamage(_maxHealth);
    }
}