I'm working on a 2d sidescrolling shooter, but I can't figure out how to take damage from the player when hitting something (a projectile or an enemy). I have a 4 heart health system and if the player gets hit by something, then 1 heart is gone, if all 4 hearts are gone, the player dies. unfortunately... this doesn't work. Nothing happens to the hearts... Help!
this is the Health Script:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class Health : MonoBehaviour
{
public int PlayerHealth = 4;
public int numOfHearts = 4;
public int damage = 1;
public Image[] hearts;
public Sprite fullHeart;
public Sprite emptyHeart;
public GameObject deathEffect;
public void TakeDamage(int damage)
{
PlayerHealth =- damage;
if (PlayerHealth == 0)
{
Die();
}
void Die()
{
Instantiate(deathEffect, transform.position, Quaternion.identity);
Destroy(gameObject);
}
}
public void Update()
{
if (PlayerHealth > numOfHearts)
{
PlayerHealth = numOfHearts;
}
for (int i = 0; i < hearts.Length; i++)
{
if (i < PlayerHealth)
{
hearts[i].sprite = fullHeart;
}
else
{
hearts[i].sprite = emptyHeart;
}
if (i < numOfHearts)
{
hearts[i].enabled = true;
}
else
{
hearts[i].enabled = false;
}
}
}
public void OnCollisionEnter2D(Collision2D collision)
{
if (collision.gameObject.tag == "Projectile")
{
PlayerHealth =- damage;
}
}
}
I can't figure out what I'm doing wrong...
Also here are the scripts of the enemyprojectile and the enemy:
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class EnemyProjectile : MonoBehaviour
{
public float moveSpeed = 7f;
public int damage = 100;
public GameObject ImpactEffect;
Rigidbody2D rb;
PlayerMovement2 target;
Vector2 moveDirection;
void Start()
{
rb = GetComponent();
target = GameObject.FindObjectOfType();
moveDirection = (target.transform.position - transform.position).normalized * moveSpeed;
rb. velocity = new Vector2 (moveDirection.x, moveDirection.y);
Destroy(gameObject, 3f);
}
void OnTriggerEnter2D (Collider2D col)
{
if (col.gameObject.name.Equals("Player"))
{
Debug.Log("Hit!");
Destroy(gameObject);
Instantiate(ImpactEffect, transform.position, transform.rotation);
}
}
}
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class Enemy : MonoBehaviour
{
public Transform player;
public int health = 400;
public GameObject deathEffect;
public void TakeDamage(int damage)
{
health -= damage;
if (health <= 0)
{
Die();
}
void Die()
{
Instantiate(deathEffect, transform.position, Quaternion.identity);
Destroy(gameObject);
}
}
}
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