Script unattached to Object will not compile

Questions & Answers
1

I feel like I’ve hit a catch twenty two:

I am creating a sound script that will instance a whirring noise only when a turret is moving to line up with it’s target. I have two scripts that accomplish this. The idea revolves around a Vector3.Angle() function that determines the difference between where the turret is pointed and where it thinks it needs to go. If that value has a nonzero value than it is assumed the turret is in movement. This value is assigned to a var called float_angle.

Soundcounter is a modulus 10 integer that is constantly moving. On the value of soundcounter == 9 the float_angle function updates. On soundcounter == 10 the following script is set to function:

function soundtrigger () {
	if(soundcounter == 10 && float_angle == 0)targetObject.SendMessage(stop);
	else(soundcounter == 10 && float_angle > 0)targetObject.SendMessage(movement);
}

This informs the following function:

SentrySoundManager.js
var start_rotate : AudioClip;
var end_rotate : AudioClip;
private var looping : boolean = false;

function loopState(looping: boolean){
	audio.loop = looping;
}
function movement(){
	if (!AudioSource.isPlaying){
		looping = true; 
		audio.PlayOneShot(start_rotate);
	}
	AudioSource.loop = looping;
	yield WaitForSeconds(start_rotate.length);
	audio.Play();
}

function stop(){
	if (AudioSource.isPlaying){
		looping = false; 
		audio.PlayOneShot(end_rotate);
	}
}

My issue is that the SentrySoundManager.js will not compile, and further complicates the unity scene by making the rest of the scripts unavailable until the compilation error is resolved. I get the following message in the Console of Unity:

  • "Assets/WeaponScripts/SentrySoundManager.js(9,26):
    BCE0020: An instance of type
    ‘UnityEngine.AudioSource’ is required
    to access non static member
    ‘isPlaying’.
  • Assets/WeaponScripts/SentrySoundManager.js(13,21):
    BCE0020: An instance of type
    ‘UnityEngine.AudioSource’ is required
    to access non static member ‘loop’.
  • Assets/WeaponScripts/SentrySoundManager.js(19,25):
    BCE0020: An instance of type
    ‘UnityEngine.AudioSource’ is required
    to access non static member
    ‘isPlaying’."

I don’t understand how to instance an AudioSource for a script that is not attached to an Object in the scene. Am I interpreting this incorrectly?
Thanks, and if I can clarify anything lemme know.

2

you need to tell the script which AudioSource in the scene you are talking about… if (as I assume) the audio source is on the same object as the script, change “AudioSource” to simply “audio”:

var start_rotate : AudioClip;
var end_rotate : AudioClip;
private var looping : boolean = false;
 
function loopState(looping: boolean){
audio.loop = looping;
}
function movement(){
if (!audio.isPlaying){
looping = true;
audio.PlayOneShot(start_rotate);
}
audio.loop = looping;
yield WaitForSeconds(start_rotate.length);
audio.Play();
}
 
function stop(){
if (audio.isPlaying){
looping = false;
audio.PlayOneShot(end_rotate);
}
}

if,alternately, the audio source you were after were on another object, like say the turret itself:

 var otherAudio = GameObject.Find("turret").GetComponent(AudioSource);

 if(otherAudio.isPlaying)...etc