How to Make an Automatic Recharging Stamina Bar [Unity Tutorial] 

hi,i've been wondering how do i disable a specific key when the currentStamina drops to 0 and it seems like you know how to code so if you could help me i would appreciate it

How do i get it to degenerate not in ticks but in a smoother way like the re-gen?

You can do a a few methods but here is the full question answers.unity.com/questions/1220440/how-to-display-call-a-function-every-second.html

Ill keep getting The type or namespace name 'stamina' could not be found (are you missing a using directive or an assembly reference?) you had same problem?

@@SnakeOfficial I did not get this error. Are you certain in the script (in the inspector tab) you are pointing towards the slider UI prefab?

@@Праведныймиротворец how do you mean that?

@@SnakeOfficial Check out 6:20

@@SnakeOfficial He drags the script into the slider object. Then in the inspector tab (on the right), the script appears at the bottom. He then drags the slider object into the script reference.

same happened to me, but i set stamina to a value of 50, when i put it to a value of "100" it worked

same. did you find out how to do it???

I wouldn't have thought it would be too much of an impact. You can always runs a test using your Profiler and see if there's any major problems

How do i get it to degenerate not in ticks but in a smoother way like the re-gen?

My stamina values would always be whole numbers, floats would work too but just to remove the need to round off the floats I chose ints

Sir Lunatic Staminabar.instance.currentStamina

@@Arnmazing23 But you have to turn currentStamina a public variable, or it wouldnt work.

That line needs to match what your class is called. So if your actual class is called StaminaBar then you need public static StaminaBar instance;

@@comp3interactive Yes, I did this, exactly like in your Video. I also tried some different things, renaming everything etc.

Sorry but you can't say you did it exactly as the video because in the video it works. Check your spelling and capitalisation of the words. It's saying it can't find a class or namespace named "stamina" which means it's spelled wrong or doesn't exist in your project

@@comp3interactive okay, I was able to fix it. Thx.

hey mate, i tried something and it worked within you're player movement/action script: create a variable : public StaminaBar staminaBar; then before you're movement functions, use if(staminaBar.GetComponent.currentStamina >= 10) { ****your action function goes here etc**** } then when saved return to unity and drag your slider/staminabar gameobject into the new 'Stamina Bar' section of your player game object script

@@McMorgatron Thanks but I had already figured it out

im a little late, but you can actually adjust the direction a slider will drop in the slider, you can change it in "Direction"

I turned my whole numbers in the slider script off, wondering what else it could be...

Are you performing the regen as a co-routine?

@@comp3interactive Here we are, probably easier just to show you! lol using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.SceneManagement; using UnityEngine.UI; public class Player : MonoBehaviour { public float speed; public int health = 10; public int stamina = 10; public Text healthDisplay; public int score = 0; public Text scoreDisplay; public GameObject dashEffect; public GameObject dashSound; private Rigidbody2D rb; // private Vector2 moveVelocity; public Slider healthSlider; public Slider staminaSlider; private Coroutine regen; //stop regening if dash is used again void Start(){ rb = GetComponent(); // Reference to rigid body in the start component } void Update(){ healthDisplay.text = "HEALTH :" + health; scoreDisplay.text = "SCORE :" + score; if(health = 2){ speed += 20; Instantiate(dashEffect, transform.position, Quaternion.identity); Instantiate(dashSound, transform.position, Quaternion.identity); staminaSlider.value -= 2; if(regen != null) StopCoroutine(regen); //stop regening if dash is used again regen = StartCoroutine(RegenStamina()); yield return new WaitForSeconds(.3f); speed -= 20; } else { Debug.Log("Not enough stamina"); } } private IEnumerator RegenStamina(){ yield return new WaitForSeconds(2); while(staminaSlider.value < staminaSlider.maxValue) { staminaSlider.value += staminaSlider.maxValue / 1000; staminaSlider.value = stamina; yield return new WaitForSeconds(0.1f); } regen = null; } }

I think it may be because you're starting a coroutine from inside or another coroutine. Try doing "yield return new StartCoroutine(RegenStamima())"

​@@comp3interactive *like this? it's giving me a syntax error saying:* *Assets/Scripts/Player.cs(80,23): error CS1002: ; expected* *Am i being stupid? I cant see any semi-colons that need adding?!* using System.Collections; using System.Collections.Generic; using UnityEngine; using UnityEngine.SceneManagement; using UnityEngine.UI; public class Player : MonoBehaviour { public float speed; public int health = 10; public int stamina = 10; public Text healthDisplay; public int score = 0; public Text scoreDisplay; public GameObject dashEffect; public GameObject dashSound; private Rigidbody2D rb; // private Vector2 moveVelocity; public Slider healthSlider; public Slider staminaSlider; private Coroutine regen; //stop regening if dash is used again void Start(){ rb = GetComponent(); // Reference to rigid body in the start component } void Update(){ healthDisplay.text = "HEALTH :" + health; scoreDisplay.text = "SCORE :" + score; if(health = 2){ speed += 20; Instantiate(dashEffect, transform.position, Quaternion.identity); Instantiate(dashSound, transform.position, Quaternion.identity); staminaSlider.value -= 2; if(regen != null) StopCoroutine(regen); //stop regening if dash is used again regen = yield return new StartCoroutine(RegenStamina()); yield return new WaitForSeconds(.3f); speed -= 20; } else { Debug.Log("Not enough stamina"); } } private IEnumerator RegenStamina(){ yield return new WaitForSeconds(2); while(staminaSlider.value < staminaSlider.maxValue) { staminaSlider.value += staminaSlider.maxValue / 1000; staminaSlider.value = stamina; yield return new WaitForSeconds(0.1f); } regen = null; } }

Just hold your state as a bool. IsSpriting, if you are sprinting and the bar runs out then toggle to false. Then deal with your speed however you need to deal with it

If you want that, then simply make it so that if whatever your stamina veriable gets to a certain value, you change speed. for example: If (stamina => 0) { speed = speed/2; } Hope this helped!

An if statement in your code could do the trick, for instance if(isGrounded == true && StaminaBar.instance.currentStamina != 0) { //Put your stuff here } This way if your stamina bar doesnt equal zero, it triggers the key, but if your stamina bar does equal zero, it can no longer run the code that has whatever you're trying to do, you can also always remove or add stuff inside of the if statement depending on what you already have there, or even just add one.

Just use GetKey instead of GetKeyDown and then decrease the stamina used so it doesn’t drain the bar immediately

​@@thomashamilton1367 Not quite sure what you mean by "Used" could you explain a bit more? You mean like" If (Input.GetKey(KeyCode. --button of you choice--)) StaminaBar.instance.Used();" Im not quite sure?

To do this you'd need to check your stamina value is greater than 0 before performing the action. If it is then allow the player to perform it

@@comp3interactive how would that code look like though? I'm referencing the staminabar in my player movement script.

@@toxiconflict I'm finding this comment a month later. I just need to know how to reference the currentStamina part in a different script but idk how. Have you found a solution? (I believe we're looking to do the same thing lol)

@@LunauticalDev just call on the script... i.e. StaminaBar.instance.UseStamina(0.5f);

but if you wanna use it throughout the script use GetComponent();

you probably have a unclosed loop that is getting called

Remove the dot in between using and UnityEngine

@@comp3interactive thanks for the reply havent tried it yet i will see tomorrow

@@comp3interactive i feel immensely stupid right now

Don't, everyone makes mistakes man. Don't beat yourself up about it... Learn what was wrong and you won't make the same mistake again

It literally says "Unity Tutorial" in the title

I thought that when I read it... It's been 7 months and I still think about this comment and why he thought it was Roblox related 😂 it haunts me

@@comp3interactive 😂 Great Tutorial Dude! Im halfway through this video right now as of commenting this lol. Maybe someone linked him this video saying it was a roblox tutorial or something XD

Thanks man. How it helps you out! And maybe, I thought Roblox was just a game though

@@comp3interactive Well I guess you do have the Roblox Studio which uses LUA in scripting! Also, right now im trying to fix something but im not too sure how. Usually, with errors I can kinda understand what may be causing it and how to fix it but this one just confuses me XD so, In my script, I have a variable that looks like this: public static StaminaRecall instance; just like the instance variable you made but instead yours was called "StaminaBar" For some reason, when I put this variable in the script, I get this error: The type or namespace name 'StaminaRecall' could not be found (are you missing a using directive or an assembly reference?) This error would usually be caused when something inside a function dosent have a registered name. I usually get this error when I make spelling errors and I thought I did, but when I checked back, no spelling errors were present. I have tried multiple times to fix this but all my efforts result in more errors showing up. and Im not exactly sure how to explain this error, if I could, I would definetely look around google before coming to you. Im not sure how to fix this and any help would be appreciated! (Sorry for the whole essay of a comment btw! 😂)

copy and paste and you will never learn to code yourself!

as some who has a player script went into the thousands of lines ima tell you *your fine*

If you can't handle typing scripts yourself, I don't think game dev is for you. Really any coding related topic.

@@Jordofentdealer gee, thanks for making me give up on my dream bud, and just when i was about to do some finishing touches.

@@StrictlyStupid bro, don't guilt trip someone else for your stupid comments. grow up