Flash MX Sound Object Tutorial - Page 9

The concept for building a vertical slider is the same, but the math is different. When you drag the slider up, the y-axis pixel number decreases, so the formula used to convert the y-axis to a variable for the setVolume method needs to take this into account. The following is the formula used for a vertical slider:

myMusic.setVolume(100-(vslidery-volCalc))

The variable "vslidery" represents the current y-axis location of the slider (which has the movie clip instance name of "vslider"). The following is the code for the vertical slider, this time without the "//" comments. The movie clip "vslider" is on top of a base image movie clip called "base".

onClipEvent(load) {
   left=_root.base._x;
   top=_root.vslider._y + 50;
   right=_root.base._x;
   bottom=_root.vslider._y - 50;
   volCalc=_root.vslider._y - 50
 //
onClipEvent(enterFrame) {
  vslidery=_root.vslider._y;
  _root.myMusic.setVolume(100-(vslidery-volCalc));
  _root.currentVolumeText=_root.myMusic.getVolume();
}
 //
onClipEvent(mouseDown) {
   startDrag(this, false, left , top , right, bottom);
}
 //
onClipEvent(mouseUp) {
   this.stopDrag();
}