Problems with decreasing health.

Unity Engine
1

I am making a small horror game to practice in unity. I’m trying to have health decrease if you have your flashlight. If the flashlight is off the player is supposed to have their health slowly decrease until they can turn the light back on or get into a well let area.

The problem is I can’t get the health to decrease slowly over time with the Time.Deltatime code to work.

Here’s the code \

if (light.enabled == false)

{

GameObject player = GameObject.Find (“First Person Controller”);
PlayerHealth playerhealth = player.GetComponent ();
playerhealth.curHealth -= Time.deltaTime/10;

}

2

Hmm.

What kind of variable is “curHealth” ; int or float ? Also, Time.deltaTime/10 is a very small number (0.01, even less).

3

curHealth is a int, as for the deltatime/10, that was because I was messing around and trying to get it to work.

Here’s the health script.

using UnityEngine;
using System.Collections;

public class PlayerHealth : MonoBehaviour {

public int maxHealth = 100;
public int curHealth = 100;

public float healthBarLength;

// Use this for initialization
void Start ()
{

healthBarLength = Screen.width /1;

}

// Update is called once per frame
void Update () {

AddjustCurrentHealth(0);
}

void OnGUI()
{

GUI.Box (new Rect(10,0, healthBarLength,20), curHealth + “/” + maxHealth);

}

public void AddjustCurrentHealth(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);

}
}

4

Please, use the tags [*code=CSharp][/code].

The thing is you’re attempting to convert a float to an int. When you do “Time.deltaTime / 10”, the result should be > 0 and < 1 (0.01 like I said). But “curHealth” is an int so the value will be cast and you’ll get … 0 ! You’re trying to remove 0 from curHealth (basically, you’re removing nothing).

Either you change your curHealth to float or you set a minimum value when decreasing player’s health (like 1).