using System;
using UnityEngine;

public class Entity : MonoBehaviour
{
    [Header("Identification")] 
    public string entityName;
    public SpriteRenderer sprite;
    public AudioSource entityAS;
    [Header("Flags")] 
    public bool stalled;
    public bool invincible;
    [Header("Stats")]
    public float health;
    public float baseMaxHealth; //for enemies, mostly.
    public float maxHealth;

    [Header("Movement")] 
    [SerializeField] private bool isFacingRight;
    [SerializeField] protected Rigidbody2D rb;
    protected Vector2 moveDirection;
    public float speed;
    public float speedMultiplier = 1f;
    [Header("FX")] 
    [SerializeField] private EntityDeathSFX deathObject;
    [SerializeField] private AudioClip deathSound;
    [SerializeField] private float deathVolume = 1;

    protected void FlipSprite(Vector2 lookDirection)
    {
        if (lookDirection.x > 0f && isFacingRight)
        {
            sprite.flipX = true;
            isFacingRight = !isFacingRight;
        }
        else if (lookDirection.x < 0f && !isFacingRight)
        {
            sprite.flipX = false;
            isFacingRight = !isFacingRight;
        }
    }
    protected virtual void FixedUpdate()
    {
        if (!stalled)
        {
            rb.linearVelocity = moveDirection * (speed * speedMultiplier);
            FlipSprite(moveDirection);
        }
    }
    public virtual void TakeDamage(float damage, Entity origin)
    {
        health -= damage;
        if (health < 0)
        {
            EntityDeathSFX newSFX = Instantiate(deathObject, transform.position, transform.rotation);
            newSFX.PlaySFX(deathSound, deathVolume);
            OnKillEffects();
        }
    }
    public void Heal(float healingAmount)
    {
        health += healingAmount;
        health = Mathf.Clamp(health, 0, maxHealth);
    }

    protected virtual void OnKillEffects()
    {
        
    }
}