3DTD/Assets/Scripts/Utilities/HealthComponent.cs

using UnityEngine;
using UnityEngine.Events;
using System;

public class HealthComponent : MonoBehaviour
{
    [SerializeField] float startHealth = 100;

    public float currentHealth {  get; private set; }

    public static event Action<Vector3, float> OnHealthChangeAtPos;

    public float StartHealth => startHealth;
    public UnityEvent OnHealthZero;
    public UnityEvent<float, float> OnHealthChange;

    void Awake()
    {
        currentHealth = startHealth;
    }

    public void TakeDamage(float damage)
    {
        OnHealthChange?.Invoke(currentHealth, currentHealth - damage);
        OnHealthChangeAtPos?.Invoke(transform.position, currentHealth - damage);
        currentHealth -= damage;

        currentHealth = (int) Mathf.Clamp(currentHealth, 0f, Mathf.Infinity);
        if (currentHealth == 0)
            OnHealthZero?.Invoke();
    }

    public void SimpleKill()
    {
        Destroy(gameObject);
    }
}