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Question by jbehring · Feb 09, 2017 at 08:35 PM · randomsyntax

Pass a property of a component to another method.

I have an array of prefabs that each have a script attached with a frequency float variable. I want to pass that property from each item in the array into a method that will pick one randomly with more chance for higher frequency items. I can't seem to get it to work.

Here is what I am trying. Any help is appreciated.

  public class LetterSpawner : MonoBehaviour{
     
         public float xMin;
         public float xMax;
         public GameObject[] letterArray;
     
         // Use this for initialization
         void Start() {
     
         }
     
         public void SubmiToRandomizer()
         {
             PickRandom(letterArray[].GetComponent<Letters>().frequency);
         }
     
     
         public float PickRandom(float[] probs)
         {
             float total = 0;
     
             foreach(float elem in probs)
             {
                 total += elem;
             }
     
             float randomPoint = Random.value * total;
     
             for (int i = 0; i < probs.Length; i++)
             {
                 if(randomPoint < probs[i])
                 {
                     return i;
                 }
                 else
                 {
                     randomPoint -= probs[i];
                 }
             }
             return probs.Length - 1;
         }



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avatar image jbehring · Feb 09, 2017 at 08:39 PM 0
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I should add. Line 14 is giving me a syntax error.

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Answer by thePeine · Feb 10, 2017 at 02:25 AM

If you want to turn your list of GameObjects into a list of floats, something like the following should work.

At the very top of your file, add the following if it's not already there:

 using System.Linq;

then in SubmiToRandomizer:

 float[] probs = letterArray.Select( x => x.GetComponent < Letters >().frequency ).ToArray();
 PickRandom(probs)

I'm not in front of a compiler, so there might be typos, but something like that should work.

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