Check if a 2D Object Exists/or not; C#

Question

I am making a Breakout clone as a learning experience, and I am trying to make the game play a failure sound when there are no balls left on screen. I created an empty game object to check if any of the three (possible) balls exist, and play the sound if they don't. Here is the script I used:

 using UnityEngine;
 using System.Collections;
 
 public class BallCounter : MonoBehaviour {
     AudioSource audio;
     Object ball1; 
     Object ball2; 
     Object ball3;
     // Use t$$anonymous$$s for initialization
     void Start () {
         audio = GetComponent<AudioSource> ();
     }
     
     // Update is called once per frame
     void Update () {
         ball1 =  GameObject.Find ("Ball");
         ball2 =  GameObject.Find ("Ball 1");
         ball3 =  GameObject.Find ("Ball 2");
         if (ball1 || ball2 || ball3) {
         } else {
             audio.Play ();
         }
     }
 }

Sadly, it doesn't work. What am I doing wrong?

Answer 1

Oh hey, I just solved it. The audio source works, but for some reason audio.Play() doesn't want to work wit$$anonymous$$n an else statement. So I just made the else statement set a bool to true to trigger another if statement, in w$$anonymous$$ch I put audio.Play(). Here's what I came up with:

 using UnityEngine;
 using System.Collections;
 
 public class BallCounter : MonoBehaviour {
     AudioSource audio;
     public AudioClip FailureBuzz;
     Object ball1; 
     Object ball2; 
     Object ball3;
     bool playSound = false;
     bool gameOver = false;
     // Use t$$anonymous$$s for initialization
     void Start () {
         audio = GetComponent<AudioSource> ();
     }
     
     // Update is called once per frame
     void Update () {
         ball1 =  GameObject.Find ("Ball");
         ball2 =  GameObject.Find ("Ball 1");
         ball3 =  GameObject.Find ("Ball 2");
         if (ball1 || ball2 || ball3) {
             Debug.Log ("Balls exist");
         } else {
             playSound = true;
             //audio.PlayOneShot (FailureBuzz);
             Debug.Log ("Balls don't exist");
         }
         if ((playSound == true) && (gameOver == false)) {
             audio.Play ();
             gameOver = true;
         }
     }
 }

It's not exactly elegant, and I still have no idea why audio.Play() won't run in an else statement, but t$$anonymous$$s code works, and that's all that matters. Thank you all for helping me debug.

Check if a 2D Object Exists/or not; C#

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