XACT - Play, Stop then Play a Cue

time and space

I'm assuming that XACT Cues are the equivalent of SoundInstances. I can play a cue:

laserCues[0].Play();

And stop a cue:

laserCues[0].Stop(AudioStopOptions.Immediate);

But how do I play that Cue again? The following gives an error - "The method or function that was called cannot be used in the manner requested":

laserCues[0].Play();

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vulpes15y ago
Accepted answer
I've never used it but I found an example on MSDN (http://msdn.microsoft.com/en-us/library/dd940205.aspx) and, judging by this snippet:

// If stopped, create a new cue
cue = soundBank.GetCue(cue.Name);
cue.Play();

you'll have to get a new cue from the SoundBank, assign that to laserCues[0] and then play that.
0
Vulpes15y ago
I think that, internally, there must be a unique identifier for each Cue instance as it says in the documentation for the SoundBank.GetCue() method:

"Each Cue instance that you retrieve is unique, even when retrieving multiple cues with the same name. This allows multiple instances of the same Cue to exist and play simultaneously."

However, AFAICS, the unique identifier is not exposed to the programmer - you only have the friendly name.

So, I don't think there's any sensible alternative to keeping your Cue references in an array or some other collection.
0
time and space15y ago
Thanks, that suggestion worked. I'd actually already seen that example but must have missed the GetCue part.

I'm currently managing cue instances using an array of Cues. This allows me to stop a sound which is linked to an event/object, eg - if an enemy is firing a continuous laser (looped cue), and that enemy is destroyed, the laser cue is also stopped. The cue index is stored in a field in the enemy class (short linkIndex). Eg:

//Enemy spawn
laserCues[enemy.linkIndex] = soundBank.GetCue("Laser3");
laserCues[enemy.linkIndex].Play();

//Enemy destroyed
laserCues[enemy.linkIndex].Stop(AudioStopOptions.Immediate);

Is there a more elegant way of doing this? You can set the number of instances of a cue in the XACT tool. Is there a unqiue identifier for each cue instance so I could use that in my code rather than having to create an array of cues?
0