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Question by HackTheREALITY · Feb 23, 2017 at 08:02 AM · functionfunctionsmethodmethodsfinding

List.FindIndex

How works FindIndex?

 public class FRef : MonoBehaviour {
     string player_n;
     public List<Prop> p = new List<Prop>();
     int idx;
 
     void Start()
     {
         idx = p.FindIndex(IsAlive);
         Debug.Log(p[idx].name);
     }
 
     bool IsAlive(Prop stats)
     {
         return stats.health == 100;
     }
 }
 

And class.cs:

 using UnityEngine;
 using System.Collections;
 using System;
 
 public class Classes {
 
 }
 [Serializable]
 public class Prop
 {
     public string name;
     public int health;
 }
 

I understood what this code does but I was wondering about "FindIndex". It is very strange. Please help.

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avatar image Hellium · Feb 23, 2017 at 09:57 AM 0
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The documentation is your friend next time : https://msdn.microsoft.com/en-us/library/0k601hd9(v=vs.110).aspx

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Answer by Tourist · Feb 23, 2017 at 08:27 AM

FindIndex will scan a collection until the predicate (callback given as parameter) returns true.

In that case, it will return the first element of p where IsAlive returns true for it.

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