Inside Macintosh: Apple Game Sprockets Guide /

Chapter 1 - SoundSprocket / SoundSprocket Reference

SoundSprocket Functions / Creating and Managing Listeners

SSpListener_GetActualVelocity

You can use the SSpListener_GetActualVelocity function to get the world-space velocity of a listener.

OSStatus SSpListener_GetActualVelocity (
SSpListenerReference inListenerReference,
TQ3Vector3D *outVelocity);

inListenerReference

A listener reference.

outVelocity

On exit, the world-space velocity vector of the listener.

function result

A result code.

DESCRIPTION

The SSpListener_GetActualVelocity function returns, in the outVelocity parameter, the world-space (that is, the transformed) velocity used in the most recent call to SSpSource_CalcLocalization for the listener specified by the inListenerReference parameter.