A more graceful way to get a list/array of a certain component from all GameObjects of a type?

Question

I'm using FindObjectsOfType() to get an array of GameObjects that have a certain script attached. But what I really want is a list/array of the SpriteRenderer on each of those objects. I've tried different ways of casting without luck. Is there a more graceful way to do it than manually running through the array of objects and adding a reference to the SpriteRenderer of each one to a list?

Here's what I'm doing now, it seems ugly:

 public class DefenderButton : MonoBehaviour
 {
     List<SpriteRenderer> allDefenderSRs = new List<SpriteRenderer>();
 
     private void Start()
     {
         DefenderButton[] allDefenderButtons = FindObjectsOfType<DefenderButton>();
         foreach (var item in allDefenderButtons)
         {
             allDefenderSRs.Add(item.GetComponent<SpriteRenderer>());
         }
     }

Answer 1

Best Answer

Answer by ShadyProductions · Jun 08, 2020 at 11:23 AM

Only thing you could do is reduce code lines with System.Linq.

     private List<SpriteRenderer> allDefenderSRs;

     private void Start()
     {
         allDefenderSRs = FindObjectsOfType<DefenderButton>()
             .Select(a => a.GetComponent<SpriteRenderer>())
             .ToList();
     }

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A more graceful way to get a list/array of a certain component from all GameObjects of a type?

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