| public getMidpoint ( FlxPoint Point = null ) : FlxPoint | ||
| Point | FlxPoint | |
| return | FlxPoint | |
/**
* Handles fade out, fade in, panning, proximity, and amplitude operations each frame.
*/
override public void update()
{
base.update();
if (_source != null)
{
x = _source.getMidpoint().x;
y = _source.getMidpoint().y;
}
float radial = 1.0f;
float fade = 1.0f;
//Distance-based volume control
if (_target != null)
{
radial = (_radius - FlxU.getDistance(_target.getMidpoint(), new FlxPoint(x, y))) / _radius;
if (radial < 0)
{
radial = 0;
}
if (radial > 1)
{
radial = 1;
}
}
//Cross-fading volume control
if (_fadeOutTimer > 0)
{
_fadeOutTimer -= FlxG.elapsed;
if (_fadeOutTimer <= 0)
{
if (_pauseOnFadeOut)
{
pause();
}
else
{
stop();
}
}
fade = _fadeOutTimer / _fadeOutTotal;
if (fade < 0)
{
fade = 0;
}
}
else if (_fadeInTimer > 0)
{
_fadeInTimer -= FlxG.elapsed;
fade = _fadeInTimer / _fadeInTotal;
if (fade < 0)
{
fade = 0;
}
fade = 1 - fade;
}
if ((autoDestroy && playCount > 0) && (_sound.State != SoundState.Paused && _sound.State != SoundState.Playing))
{
_sound.Dispose();
}
_volumeAdjust = radial * fade;
updateTransform();
}
/**
* Change the emitter's midpoint to match the midpoint of a <code>FlxObject</code>.
*
* @param Object The <code>FlxObject</code> that you want to sync up with.
*/
public void at(FlxObject Object)
{
Object.getMidpoint(_point);
x = _point.x - (Convert.ToInt32(width) >> 1);
y = _point.y - (Convert.ToInt32(height) >> 1);
}
/**
* Change the emitter's midpoint to match the midpoint of a <code>FlxObject</code>.
*
* @param Object The <code>FlxObject</code> that you want to sync up with.
*/
public void at(FlxObject Object)
{
Object.getMidpoint(_point);
x = _point.x - (Convert.ToInt32(width)>>1);
y = _point.y - (Convert.ToInt32(height)>>1);
}
