Not able to make a foreach loop

Question

Hey

I'm trying to make a "lives left" functionality for my game, you know, the standard 3 lives in the right corner of the screen.

Thing is though, every time i try to make a foreach loop i get an error thrown in my face:

error CS1579: foreach statement cannot operate on variables of type `int' because it does not contain a definition for `GetEnumerator' or is not accessible

The code i'm using is looking like this:

 using UnityEngine;    
 using System.Collections;
 
 public class UserInterface : MonoBehaviour {
     
     public int livesleft = 3;
     
     void OnGUI(){
         GUILayout.BeginArea(new Rect(Screen.width - 170,20,50,170));
         foreach(int i in livesleft){
             Debug.Log("i dont work");
         }
         GUILayout.EndArea();
     }
 }

The error is not only limited to the OnGUI function, it doesnt work in update either.

I'm about to go flip a table over this, because i have no idea what im doing wrong.

Answer 1

Best Answer

Answer by nicloay · Aug 30, 2012 at 09:45 AM

livesleft must be an some type of array which implement IEnumerator Interface, not an a primitive like an int,

in your case you can use following construction

 while ( --livesleft >0){
     Debug.Log("blalblalbla");
 }

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Kryptos · Aug 30, 2012 at 11:34 AM 0

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Not IEnumerator but IEnumerable.

Answer 2

Answer by Kryptos · Aug 30, 2012 at 11:36 AM

The foreach statement is used to iterate through a collection that implements the IEnumerable interface. You cannot use it with other types.

Here you can learn how the foreach loop works:

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Not able to make a foreach loop

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