Odtnhj

I have a simple board game where tokens get moved from square to square. I am using a coroutine to move the tokens. It does something like below

IEnumerator MoveTokenCoRoutine(int steps)


 while (steps > 0)
 
 transform.position = Vector3.Lerp(transform.position, newPos, Time.deltaTime * speed);
 yield return null;
 --steps;
 

The clip is a sliding sound for 2 seconds.

Steps, is how many squares a token should move using Lerp. The only time I could get it synced is with below parameters.

1) Set the lerp speed to 10 which is default speed i use to move
2) Step = 1 (move one square)
3) Call Play() just before while

With this scenario movement and sound effect stay pretty much in sync.

However, if steps get more than 1 and I put the Play() inside loop it just plays one time and stops. But the token keeps moving until while ends.

What approaches do I have to keep this in sync?

There is not much salvagable from your code, unfortunately.

A better working variant would look like this:

IEnumerator MoveTokenCoRoutine()

 float currentTime=0.0f; // note: NOT in seconds, 1.0f = end of sound sample
 Vector3 oldPosition = transform.position;
 float startTime = Time.time;
 while (currentTime < 1.0f) 
 currentTime = (Time.time - startTime)/ DurationInSeconds ;
 transform.position = Vector3.Lerp(oldPosition, newPos, currentTime );
 yield return null;
 

Required variables:

• 
  Vector3 newPos Target position at animation end


• 
  float DurationInSeconds Length of the sound sample in seconds