Health Bar doesnt fit my float var

Question

im still beginner in Unity..

so i have this script to set my Health Bar but it doesnt fit with float var. what logic should i use to this? ( i know i should change " healthBar.SetMaxHealth(); " logic but i dont know what code to use for it. Any suggestion?

 using UnityEngine;
 
 public class Enemy : MonoBehaviour
 {
     public float startHealth = 50f;
     private float health;
 
     [Header("Unity Stuff")]
     public HealthBarScript healthBar;
 
     private void Start()
     {
         health = startHealth;
         healthBar.SetMaxHealth(startHealth);
     }
 
     public void TakeDamage (float amount)
     {
         health -= amount;
         if (health <= 0f)
         {
             Die();
         }
         healthBar.SetHealth(health);
   
     }
 
     void Die()
     {
         Destroy(gameObject);
     }
 }

Answer 1

Best Answer

Answer by ShadyProductions · May 11, 2020 at 09:22 AM

When I implement a health bar, I use a slider component which has a build in slide between a min and max value. You can set these in the inspector like 0 min value and 100 max value for example.

There are a lot of tutorials on this on youtube.

https://www.youtube.com/watch?v=BLfNP4Sc_iA&t=300s

Incase you want to normalize a value to be between 0-1 you can scale the value.

To scale, you need to divide your raw value by the total range, and account for an offset if min != 0. For a range of (min, max):

  scaledValue = (rawValue - min) / (max - min);

For the common case where min == 0:

  scaledValue = rawValue / max;

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cicilalan9 · May 11, 2020 at 09:35 AM 0

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yes i already watch Brackeys tutorial and use his health bar script. But the thing is, he use his health,maxHealth,etc in integer . In my case, my health stats script is in float and i cant use "healthBar.Set$$anonymous$$axHealth(currentHealth)" logic bcs my data type is float. I need to substitute "healthBar.Set$$anonymous$$axHealth(currentHealth)" code with code that compatible with float

ShadyProductions cicilalan9 · May 11, 2020 at 11:34 AM 0

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I have already given you the answer to that aswel, normalize your float value between 0-1.

 using UnityEngine;
 using UnityEngine.UI;
 
 public class HealthBar : $$anonymous$$onoBehaviour
 {
     public Slider slider;
     public Gradient gradient;
     public Image fill;
 
     private void Start()
     {
         slider.maxValue = 1;
         slider.value = 1;
     }
 
     public float $$anonymous$$axHealth;
 
     public void SetHealth(float health)
     {
         slider.value = health / $$anonymous$$axHealth;
     }
 }

Just set the healthbar.$$anonymous$$axHealth = startHealth;

cicilalan9 · May 11, 2020 at 12:23 PM 0

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Amazing ! thankyou so much for helping me, it worked ! appreciate it !

Health Bar doesnt fit my float var

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