Trigger detects player collision and play specific audio from array

Questions & Answers
1

I want to have an object detect when a player collides with it and play a specific audio piece from an array. I got the trigger to play random audio from the array on startup, but i want to have a specific audio play from the array when the player collides with it.

UPDATE: I figured out why my player didn’t collide with the trigger: I stupidly didn’t capitalize the “o” on “OnTriggerEnter”.
HOWEVER I still have not found out how to select 1 specific audio piece to play from an array.

Here is my updated code:

using UnityEngine;
using System.Collections;

public class AudioEventTriggerPlay : MonoBehaviour {

    public int PlayAudioValue;
    public bool PlayOnlyOnce;
    //array of audio i want to have play
    public AudioClip[] AvailableAudioCanPlay;
    AudioSource PlayAudio;

	// Use this for initialization
	void Start () {
        PlayAudio = GetComponent<AudioSource>();
    }
	
    //check if player collides with this object
    void OnTriggerEnter(Collider Other){
        if (Other.gameObject.name == "Player"){
            //debug check if player collided with the trigger
            print("The player touched me! D:");
            switch (PlayAudioValue){
                case 0:
                    Debug.Log("Announcer tutorial string 1");
                    KillAfterPlay();
                    break;
                case 1:
                    Debug.Log("Announcer tutorial string 2");
                    KillAfterPlay();
                    break;
                case 2:
                    Debug.Log("Announcer tutorial string 3");
                    KillAfterPlay();
                    break;
                case 3:
                    Debug.Log("Announcer tutorial string 4");
                    KillAfterPlay();
                    break;
                case 4:
                    Debug.Log("Unreserved slot");
                    KillAfterPlay();
                    break;
                case 5:
                    Debug.Log("Unreserved slot");
                    KillAfterPlay();
                    break;
                case 6:
                    Debug.Log("Unreserved slot");
                    KillAfterPlay();
                    break;
                case 7:
                    Debug.Log("Unreserved slot");
                    KillAfterPlay();
                    break;
                case 8:
                    Debug.Log("Unreserved slot");
                    KillAfterPlay();
                    break;
                default:
                    Debug.Log("Error: No available cases left or value is out of range!");
                    break;
            }
            //play audio from array Element 0
            /*if (PlayAudioValue == 0){
                PlayAudio.clip = AvailableAudioCanPlay[Random.Range(0, AvailableAudioCanPlay.Length)];
                PlayAudio.Play();
                KillAfterPlay();
            }
            //play audio from array Element 1
            if (PlayAudioValue == 1){
                PlayAudio.clip = AvailableAudioCanPlay[Random.Range(0, AvailableAudioCanPlay.Length)];
                PlayAudio.Play();
                KillAfterPlay();
            }
            //play audio from array Element 2
            if (PlayAudioValue == 2){
                PlayAudio.clip = AvailableAudioCanPlay[Random.Range(0, AvailableAudioCanPlay.Length)];
                PlayAudio.Play();
                KillAfterPlay();
            }
            //play audio from array Element 3
            if (PlayAudioValue == 3){
                PlayAudio.clip = AvailableAudioCanPlay[Random.Range(0, AvailableAudioCanPlay.Length)];
                PlayAudio.Play();
                KillAfterPlay();
            }*/
        }
    }

    // when bool PlayOnlyOnce is checked
    void KillAfterPlay(){
        if (PlayOnlyOnce == true){
            //destroys self when audio is finished playing
            Destroy(gameObject, AvailableAudioCanPlay.Length);
        }
    }
}
2

Instead of using the Random.Range statement, you could use the index of the array in each case statement. For example:

             switch (PlayAudioValue){
                 case 0:
                     PlayClip(0);

                     KillAfterPlay(0);

                     break;
                 case 1:
                     PlayClip(1);

                     KillAfterPlay(1);

                     break;
                 case 2:
                     PlayClip(2);

                     KillAfterPlay(2);

                     break;
                 case 3:
                     Debug.Log("Announcer tutorial string 4");
                     KillAfterPlay();
                     break;

etc.
             }

    private void PlayClip(int arrayIndex)
    {
        PlayAudio.clip = AvailableAudioCanPlay[arrayIndex];
        PlayAudio.Play();
    }

Also in KillAfterPlay() you must use the time of the clip in the Destroy statement, not the AvailableAudioCanPlay array length. So, include an index parameter.

    void KillAfterPlay(int arrayIndex)
    {
        if (PlayOnlyOnce == true)
        {
            //destroys self when audio is finished playing
            Destroy(gameObject, AvailableAudioCanPlay[arrayIndex].length);
        }
    }