[C#]Health Regeneration and Delay

Question

So I am trying to make a health regeneration system but I have run into a few problems, the first one being that because time.deltatime is a float, instead of my health regenerating like it should (91-92-93 and so on) it regenerates but there are a ton of decimals (ex. 91.81238%) I was wondering how to fix this problem to have my health only regenerate in whole number increments. The other thing I am trying to do is create a 10 second delay between when the last time my character took damage, till when the regeneration actually starts. Code is below and thank you in advance.

 using UnityEngine;
 using System.Collections;
 
 public class PlayerHealth : MonoBehaviour {
     public int maxHealth = 100;
     public float curHealth = 100;
     public float regeneration = 5;
 
 
     public float healthBarLength;
 
     // Use this for initialization
     void Start () {
 
         healthBarLength = Screen.width / 2;
     
     }
 
     // Update is called once per frame
     void Update () {
                 
         AdjustCurrentHealth (0);
     
 
         if (curHealth < maxHealth)
                         curHealth += regeneration * Time.deltaTime;;
 
 
     }
 
     void OnGUI() {
         GUI.Box (new Rect (900, 870, healthBarLength, 20), curHealth + "/" + maxHealth);
 
 
 
         }
     public void AdjustCurrentHealth(int adj) {
         curHealth += adj;
 
 
 
         if (curHealth < 0)
                         curHealth = 0;
 
         if (curHealth > maxHealth)
                         curHealth = maxHealth;
 
         if (maxHealth < 1)
                         maxHealth = 1;
 
         healthBarLength = (Screen.width / 2) * (curHealth / (float)maxHealth);
 
 
         }
 
 
 }

Answer 1

Answer by getyour411 · Apr 18, 2014 at 05:55 AM

I do it like this; you'd have to fill in the blanks and modify to your set up

 void Update() {

     // If game is paused, don't do any of this
     if (QM_Utils.gamePaused)
                     return;

     if(curHealth != maxHealth && !isRegenHealth) {
         StartCoroutine(RegainHealthOverTime());
     }
 }


     private IEnumerator RegainHealthOverTime() {
     isRegenHealth = true;
     while (curHealth < maxHealth) {
         AdjustCurrentHealth (1);
         CalcHealthPct (curHealth);
         yield return new WaitForSeconds (healthRegenRate);
             }
     isRegenHealth = false;
 }

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Answer 2

Answer by robertbu · Apr 18, 2014 at 05:50 AM

In Start() put:

 InvokeRepeating("Regenerate", 0.0f, 1.0 / regeneration);

Then write the function Regenerate():

 void Regenerate() {
     if (curHealth < maxHealth)
              curHealth += 1.0f;
 }

Or if you make curHealth and 'int', you can just do curHealth++.

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Kelvik · Apr 18, 2014 at 06:10 AM 0

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Now what could I add to only make this execute if I have not taken damage for 10 seconds?

robertbu · Apr 18, 2014 at 06:25 AM 1

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At the top of the file put:

 private float timestamp = 0.0;

Then when you take damage do:

 timestamp = Time.time;

Then Regenerate() becomes:

 void Regenerate() {
     if (curHealth < maxHealth && Time.time > (timestamp + 10.0f))
              curHealth += 1.0f;
 }

Kelvik · Apr 18, 2014 at 10:27 PM 0

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Cant seem to get it to work because my health and damage script are two different scripts, right now it waits 10 seconds after I take damage to begin regenerating, but if i take damage again after the initial 10 seconds, it keeps regenerating. Both scripts included below.

 public class PlayerHealth : $$anonymous$$onoBehaviour {
     public int maxHealth = 100;
     public float curHealth = 100;
     public int regeneration = 5;
 
     private float timestamp = 0.0f;
 
 
     public float healthBarLength;
 
     // Use this for initialization
     void Start () {
         InvokeRepeating("Regenerate", 0.0f, 10.0f / regeneration);
         healthBarLength = Screen.width / 2;
 
     }
 
     // Update is called once per frame
     void Update () {
                 
         AdjustCurrentHealth (0);
     
 
 
     }
 
     void OnGUI() {
         GUI.Box (new Rect (900, 870, healthBarLength, 20), curHealth + "/" + maxHealth);
 
 
 
         }
     public void AdjustCurrentHealth(int adj) {
         curHealth += adj;
 
         if (curHealth < 0)
                         curHealth = 0;
 
         if (curHealth > maxHealth)
                         curHealth = maxHealth;
 
         if (maxHealth < 1)
                         maxHealth = 1;
 
         healthBarLength = (Screen.width / 2) * (curHealth / (float)maxHealth);
 
 
         }
     void Regenerate() {
         if (curHealth < maxHealth && Time.time > (timestamp + 10.0f))
             curHealth += 1.0f;
     }
 
 
 }


























 using UnityEngine;
 using System.Collections;
 
 public class EnemyAttack : $$anonymous$$onoBehaviour {
     public GameObject target;
     public float attackTimer;
     public float coolDown;
 
     
     // Use this for initialization
     void Start () {
         attackTimer = 0;
         coolDown = 2.0f;
     }
     
     // Update is called once per frame
     void Update () {
         if (attackTimer > 0)
             attackTimer -= Time.deltaTime;
         
         if (attackTimer < 0)
             attackTimer = 0;
         
 
         if (attackTimer == 0) {
             Attack ();
             attackTimer = coolDown;
                 
         }
         
     }
     
     private void Attack() {
         float distance = Vector3.Distance (target.transform.position, transform.position);
         
         Vector3 dir = (target.transform.position - transform.position).normalized;
         
         float direction = Vector3.Dot (dir, transform.forward);
         
         Debug.Log (distance);
         
         if (distance < 3f) {
             if (direction > 0) {
                 PlayerHealth eh = (PlayerHealth)target.GetComponent ("PlayerHealth");
                 eh.AdjustCurrentHealth (-10);
 
                 
             }
         }
 
     }
 }

Mmrw · Jul 03, 2015 at 10:36 AM 1

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$$anonymous$$ake timestamp = 0 after curhealth += 1.0f

Answer 3

Answer by Sefcio · Jun 23, 2015 at 08:01 PM

This is great, based on what you did I made my part of this script like this:

 public class Health : MonoBehaviour {
 
     public int startingHealth = 100;
     public int currentHealth;
     public int healthReg;
 
     bool isRegenHealth;
 
  
     void Awake ()
     {
         currentHealth = startingHealth;
     }
 
 
     void Update() 
     {
         if(currentHealth != startingHealth && !isRegenHealth) 
         {
             StartCoroutine(RegainHealthOverTime());
         }
     }
 
 
     private IEnumerator RegainHealthOverTime() 
     {
         isRegenHealth = true;
         while (currentHealth < startingHealth) 
         {
             Healthregen ();
             yield return new WaitForSeconds (1);
         }
         isRegenHealth = false;
     }
 
 
     public void Healthregen() 
     {
         currentHealth += healthReg;
         
     }

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[C#]Health Regeneration and Delay

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