So I’m doing the Nightmare tutorial on the Unity Website, and I’ve gotten to the point where I’m setting up the player’s health, and now having a way for the enemies to attack. I have the exact same thing (as far as I can tell) as the people in the video, and I even copy and pasted the code right from the website, yet it persists on telling me this error: NullReferenceException: Object Reference not set to an Instance of an Object
EnemyAttack.Update () (at Assets/Scripts/Enemy/EnemyAttack.cs:64)
This is my EnemyAttack script:
using UnityEngine;
using System.Collections;
public class EnemyAttack : MonoBehaviour
{
public float timeBetweenAttacks = 0.5f; // The time in seconds between each attack.
public int attackDamage = 10; // The amount of health taken away per attack.
Animator anim; // Reference to the animator component.
GameObject player; // Reference to the player GameObject.
PlayerHealth playerHealth; // Reference to the player's health.
EnemyHealth enemyHealth; // Reference to this enemy's health.
bool playerInRange; // Whether player is within the trigger collider and can be attacked.
float timer; // Timer for counting up to the next attack.
void Awake ()
{
// Setting up the references.
player = GameObject.FindGameObjectWithTag ("Player");
playerHealth = player.GetComponent <PlayerHealth> ();
enemyHealth = GetComponent<EnemyHealth>();
anim = GetComponent <Animator> ();
}
void OnTriggerEnter (Collider other)
{
// If the entering collider is the player...
if(other.gameObject == player)
{
// ... the player is in range.
playerInRange = true;
}
}
void OnTriggerExit (Collider other)
{
// If the exiting collider is the player...
if(other.gameObject == player)
{
// ... the player is no longer in range.
playerInRange = false;
}
}
void Update ()
{
// Add the time since Update was last called to the timer.
timer += Time.deltaTime;
// If the timer exceeds the time between attacks, the player is in range and this enemy is alive...
if(timer >= timeBetweenAttacks && playerInRange && enemyHealth.currentHealth > 0)
{
// ... attack.
Attack ();
}
// If the player has zero or less health...
if(playerHealth.currentHealth <= 0)
{
// ... tell the animator the player is dead.
anim.SetTrigger ("PlayerDead");
}
}
void Attack ()
{
// Reset the timer.
timer = 0f;
// If the player has health to lose...
if(playerHealth.currentHealth > 0)
{
// ... damage the player.
playerHealth.TakeDamage (attackDamage);
}
}
}
And this is my PlayerHealth script, if it might help:
using UnityEngine;
using UnityEngine.UI;
using System.Collections;
public class PlayerHealth : MonoBehaviour
{
public int startingHealth = 100;
public int currentHealth;
public Slider healthSlider;
public Image damageImage;
public AudioClip deathClip;
public float flashSpeed = 5f;
public Color flashColour = new Color(1f, 0f, 0f, 0.1f);
Animator anim;
AudioSource playerAudio;
PlayerMovement playerMovement;
//PlayerShooting playerShooting;
bool isDead;
bool damaged;
void Awake ()
{
anim = GetComponent <Animator> ();
playerAudio = GetComponent <AudioSource> ();
playerMovement = GetComponent <PlayerMovement> ();
//playerShooting = GetComponentInChildren <PlayerShooting> ();
currentHealth = startingHealth;
}
void Update ()
{
if(damaged)
{
damageImage.color = flashColour;
}
else
{
damageImage.color = Color.Lerp (damageImage.color, Color.clear, flashSpeed * Time.deltaTime);
}
damaged = false;
}
public void TakeDamage (int amount)
{
damaged = true;
currentHealth -= amount;
healthSlider.value = currentHealth;
playerAudio.Play ();
if(currentHealth <= 0 && !isDead)
{
Death ();
}
}
void Death ()
{
isDead = true;
//playerShooting.DisableEffects ();
anim.SetTrigger ("Die");
playerAudio.clip = deathClip;
playerAudio.Play ();
playerMovement.enabled = false;
//playerShooting.enabled = false;
}
}
I am extremely new to this, so please take it easy on me. I greatly appreciate all input. Thank you 
