using UnityEngine;
using UnityEngine.UI;

public class PlayerHealth : MonoBehaviour
{
    [SerializeField]
    Slider healthBar;
    [SerializeField]
    Text healthText;
    [SerializeField]
    GameObject DeathUI;

    public Animator anim;

    public float maxHealth = 100;
    public float curHealth;

    void Start()
    {
        anim = GetComponent<Animator>();

        healthBar.value = maxHealth;
        curHealth = healthBar.value;
    }

    void OnTriggerStay2D(Collider2D col)
    {
        if (col.gameObject.tag == "Saw")
        {
            healthBar.value -= .5f;
            curHealth = healthBar.value;
        }
        if (col.gameObject.tag == "Acid")
        {
            healthBar.value -= .2f;
            curHealth = healthBar.value;
        }
        if (col.gameObject.tag == "Spikes")
        {
            healthBar.value -= .2f;
            curHealth = healthBar.value;
        }
    }

    void Update()
    {
        //n0 means do not show any decimal places
        healthText.text = curHealth.ToString("n0") + " %";

        //keep health bar value up to date with the
        //players health value
        healthBar.value = curHealth;

        if (curHealth <= 0)
        {
            //play death animation
            anim.SetBool("isDead", true);

            //stop all player movement
            GetComponent<RobotController>().enabled = false;

            //enables the death UI
            DeathUI.gameObject.SetActive(true);
        }

        //check to make sure our current health
        //doesn't go over our max health
        if (curHealth >= maxHealth)
            curHealth = maxHealth;

    }
}