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

/*
--------------------------------------
    Project: Programing assessment
    Standard: 91906 (AS3.7) v.1
    School: Tauranga Boys' College
    Author: Rauputu Noah Phizacklea
    Date: August 2024
    Unity: 2021.3.18f
---------------------------------------
*/

public class BossHealth : MonoBehaviour
{
    public int health = 500;                      // Boss's total health
    public HealthBar healthBar;                  // Reference to the health bar UI
    public GameObject deathEffect;               // Prefab for the death effect
    public bool isInvulnerable = false;          // Flag to check if the boss is invulnerable
    public GameObject gameCompleteDoor;          // Reference to the door GameObject

    void Start()
    {
        // Initialize the game complete door as inactive at the start
        gameCompleteDoor.SetActive(false);

        // Activate the health bar when the boss is alive
        healthBar.gameObject.SetActive(true);
    }

    // Method to apply damage to the boss
    public void TakeDamage(int damage)
    {
        // If the boss is invulnerable, ignore the damage
        if (isInvulnerable)
            return;

        // Decrease boss's health and update the health bar
        health -= damage;
        healthBar.SetHealth(health);

        // If health drops below 200, trigger the enraged state
        if (health <= 200)
        {
            GetComponent<Animator>().SetBool("isEnraged", true);
        }

        // If health is zero or less, call Die method
        if (health <= 0)
        {
            Die();
        }
    }

    // Method to handle the boss's death
    void Die()
    {
        // Instantiate the death effect at the boss's position
        Instantiate(deathEffect, transform.position, Quaternion.identity);

        // Destroy the boss game object
        Destroy(gameObject);

        // Activate the door GameObject to signify level completion
        gameCompleteDoor.SetActive(true);

        // Deactivate the health bar since the boss is dead
        healthBar.gameObject.SetActive(false);
    }
}