Boss Health Bar

Question

Okey, so basically I am trying to create a boss health bar that follows the enemy (above his head) and if player collides, it drops down from 100 to 80. The script should be c# and it's 2D. This is my current script

         if(col.gameObject.name == "BossBody"){
             gameObject.transform.position = respawnPoint.position;
             bossDamage = 0;
             AudioSource.PlayClipAtPoint(BossDeath, transform.position);
         }
 
         if(col.gameObject.name == "Boss"){
             bossDamage +=1;
             Debug.Log ("Current bossDamage is: " + bossDamage);
             AudioSource.PlayClipAtPoint(BossHit, transform.position);
             }
         
         if(col.gameObject.name == "Boss" && bossDamage == 5) {
             Destroy(col.gameObject);
             score+= 5;
             AudioSource.PlayClipAtPoint(BossKill, transform.position);
             GetComponent<AudioSource>().Stop();
             audio2.Play ();
         }

This makes the music stop, play and so on aswell as makes the boss die after 5 hits. I have tried to add a boss health bar to the script by impementing this code that I found online, but I simply cannot get it working. All help and tips is much appreaciated. Thanks in advance

 public int maxHealth = 100;
     public int curHealth = 100;
    
     public float healthBarLength;
    
     // Use this for initialization
     void Start () {
         healthBarLength = Screen.width / 6;
     }
    
     // Update is called once per frame
     void Update () {
         AddjustCurrentHealth(0);   
     }
    
     void OnGUI() {
         GUI.Box(new Rect(700, 10, healthBarLength, 20), curHealth + "/" + maxHealth);
     }
    
     public void AddjustCurrentHealth(int adj) {
         curHealth += adj;
        
         if (curHealth < 0)
             curHealth = 0;
        
         if (curHealth > maxHealth)
             curHealth = maxHealth;
        
         if(maxHealth < 1)

Answer 1

Answer by Tim-Duval · Sep 07, 2018 at 11:39 PM

Well, really you should create the bosses max health and then have a variable for the current health.

  private float bossMaxHp = 100f;
  private float bossHp;
  public Image hpBarBackground; // Add your background image here(inside Unity)
  public Image hpBarForeground; // add the HP image that will be affected by Damage here

Somewhere inside your code: bossHp = bossMaxHp;

When using Unity UI, or images you've created for HP bar, you can have your images accessed like this:

  void Update(){

 hpBarForeground.fillAmount = bossHp / bossMaxHp;

  }

As far as your bosses damage and detection, you should use OnCollisionEnter()

  void OnCollisionEnter(Collision collision){

if(collision.tag == "Boss"){ } // Insert your code here } And you can pretty much keep adding your IF statements inside this function. I think this will clean your code up quite a bit.

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Boss Health Bar

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