i'm trying to set up a mana bar that subtracts when i press a button and regenerates, but it's not working.

Questions & Answers
1

i’m using an Image with fill to the mana bar, and a button to subtract from the mana. i’ve also added a text on the mana bar to show the exact amount so i can adjust the numbers to get it right. I’m not sure why it won’t regenerate the mana, I hope someone can help me with this. Thank you in advance.

2

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class MoveLeftBar : MonoBehaviour
{
public Image lifeBar;
public Image manaBar;
public Text lifeText;
public Text manaText;

public float myLife;
public float myMana;
private float manaRegenAmount;

private float currentLife;
private float currentMana;
private float calculateLife;

void Start()
{
    currentLife = myLife;
    currentMana = myMana;
    manaRegenAmount = 10f;
}

void Update()
{
    calculateLife = currentLife / myLife;
    lifeBar.fillAmount = Mathf.MoveTowards(lifeBar.fillAmount, calculateLife, Time.deltaTime);
    lifeText.text = "" + (int)currentLife;

      if (currentMana < myMana)
     {
        //manaBar.fillAmount += manaRegenAmount * Time.deltaTime * 0.01f;
       manaBar.fillAmount = Mathf.MoveTowards(manaBar.fillAmount, 1f, Time.deltaTime * 0.01f);
       currentMana = Mathf.MoveTowards(currentMana / myMana, 1f, Time.deltaTime * 0.01f) * myMana;
     }

    if (currentMana < 0)
    {
        currentMana = 0;
    }

    manaText.text = "" + Mathf.FloorToInt(currentMana);

    if(currentLife <= 0)
    {
        //Instantiate 
    }
}
//}
public void Damage(float damage)
{
    currentLife -= damage;
}

public void ReduceMana(float mana)
{

    if (mana <= currentMana)
    {
        currentMana -= mana;
        manaBar.fillAmount -= mana / myMana;
    }
    else
    {
        //not enough mana
    }
}

}