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Question by rafip · Oct 04, 2017 at 09:38 PM · c#uisliderintvalue

How To Make Healthbar Value Slowly Decrease?

How do I make a healthbar value slowly decrease?

What I have: public Slider Healthbar;

     void OnTriggerEnter(Collider enemy)
     {
         Healthbar.value -= Random.Range(2, 5); // I need help here!
 
 
         if (Healthbar.value <= 0) {
             anim.Play ("Dead");
         }
     }
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avatar image Salmjak · Oct 06, 2017 at 09:03 PM 0
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What exactly do you want to do? Do you want the GUI to show a s$$anonymous$$dily decreasing HP going towards the new value? In that case, create a coroutine which constantly Lerps the Healthbar.value to another variable, e.g. "targetHP" and then you change targetHP when subtracting health.

OR do you want to have a damage over time effect? If you want a DoT you should use OnTriggerStay and then use Time.deltaTime like Full$$anonymous$$e7alJacke7 said.

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Answer by FullMe7alJacke7 · Oct 05, 2017 at 03:49 PM

You could do something like....

Healthbar.value -= Random.Range(2,5) * Time.DeltaTime;

I'm not 100% sure if that line will work for what you want, but I have a feeling you need to incorporate the unity timescale into your code to reach the desired effect.

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avatar image rafip · Oct 05, 2017 at 07:26 PM 0
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Thanks, but how do I define DeltaTime?

avatar image rafip · Oct 05, 2017 at 07:32 PM 0
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Nvm. Doesnt work. :/

avatar image FullMe7alJacke7 rafip · Oct 06, 2017 at 08:40 PM 0
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DeltaTime doesn't need to be defined. It might not work exactly how I wrote it, but I'm sure there is a way to use it correctly that would help you.

You might want to try using a float to keep track of time and then subtract the amount of time passed from the healthbar value float. Another way would be to use a coroutine as they can be used in ways that would be similar to doing something every frame, except they don't rely on framespeed

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