How do i make a script that re-fills lives after 10min?

Questions & Answers
1

EDIT i got the life going down mechanics, i just need the time script. Everytime deaths go to 5 in a level i want to lower the PlayerPrefs for the Big Lives(ones in the menu, that decide wether you can play or not) by one. I dont know how to just decrease it instead of setting the PlayerPrefs to a specific number. Also if Big Lives <= 5 i want a timer to start that of reaches 10 min it would replenish one Big Life. But i cant really find anything. Can anybody help?

2

If you just want to decrease the number by one you could do: bigLives--; or if you want to decrease by a certain number then you do this: bigLives-= 2; which subtracts two from the value.

For the timer I usually make something like this with the startLifeTimer being the amount between each live. Then subracting one second from lifeTimer until it equals 0, where we add a life and reset the timer.

float startLifeTimer;
float lifeTimer;

 void Start
 {
     lifeTimer = startLifeTimer;
 }

if(bigLives <= 5)
     if(lifeTimer < 0)
     {
           bigLives++;
           PlayerPrefs.SetFloat("BigLives", bigLives);
           lifeTimer = startLifeTimer;
     }
     else
     {
        lifeTimer -= Time.deltaTime;
     }
3

use coroutines, so something like this:

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour
{
    void Start()
    {
        StartCoroutine(ResetLives);
    }

    private IEnumerator ResetLives()
    {
        while(true)
        {
            yield return new WaitForSeconds(10f);
            player.lives=10;
        }
    }
}

More info on coroutines:

https://stackoverflow.com/questions/53139259/making-a-timer-in-unity