Subtracting an Int's value with a button press

Questions & Answers
1

Inside a script, I have an int called food, and I want it to decrease by one when I press F. It starts at 5. Problem is, I just couldn’t make it work. I don’t know how to change int values from inside the code. What would be the simplest script solution?

2

void Update()
{
if (Input.GetKeyDown(KeyCode.F))
{
food–;
}
}

3

Create a c# script called Player, paste this in, save, attach to some gameobject in scene and play.

using com.events;
using UnityEngine;

public class Player:MonoBehaviour {

    private int _food = 12;

    private void Update() {
        if(Input.GetKeyDown(KeyCode.F)) {
            Eat();
        }
    }

    private void Eat() {
        if(_food >= 5) {
            _food -= 5;

            Debug.Log("nom nom");
        }
        else{
            Debug.Log("not enough food:"+_food);
        }
    }
    
}