audiosource.PlayClipAtPoint only plays once

Questions & Answers
1

so i have this game object that is rotating on the y axis, and is constantyl changing speed. i want the object to play a short beep when it makes a full rotation. unfortunately, my scriupt only plays the beep once right when the game starts and then doesnt play it again. what could i be doing wrong? this is unity 5 btw not 4

void Update()
{
   transform.Rotate(Vector3.up * (Time.deltaTime * speed));
   if (transform.eulerAngles.y == 0)
{
audiosource.PlayClipAtPoint(clip);
}
}
2

You cannot rely on equality for float due to how the computer store them. 0 is rarely 0 but more likely 0.00000001 which is not 0 for a computer but close enough for a human.

It plays the first round because the value is explicitely set to 0 on start. After that, no more.

You can keep track of the rotation and play when more than 360 (full circle).

private float rotationAngle = 0f;
void Update()
 {
   float angle =  Time.deltaTime * speed;
   transform.Rotate(Vector3.up * angle);
    rotationAngle += angle;
    transform.Rotate(Vector3.up * (Time.deltaTime * speed));
    if (rotationAngle > 360f)
    {
       audiosource.PlayClipAtPoint(clip);
       rotationAngle = 0f;
    }
}
3

That happens because transform.eulerAngle.y is 0 just at the beginning.
You need to store the angle separately as a float and add to it when you are rotating, then you check if it reaches 360, so you can set it to 0, here is the code:

float currentAngle;
	float speed;
	float clip;


	void Update() {
		float deltaAngle = Time.deltaTime * speed;	
		currentAngle += deltaAngle;	// Keep track of the current angle by adding delta angle to it.
		transform.Rotate(deltaAngle * Vector3.up);

		if(deltaAngle >= 360) {
			currentAngle = 0;
			AudioSource.PlayClipAtPoint(clip, transform.position);
		}
	}