adamcoulombe

//demo @ http://adamcoulombe.info/lab/as3/rangetest.swf
//download .fla http://adamcoulombe.info/lab/as3/rangetest.fla
range.visible=false;
stage.addEventListener(Event.ENTER_FRAME,tick);
function tick(e){
	if(getDistance(mouseX,mouseY,source.x,source.y)<range.width/2){
		range.visible=true;
	}else{
		range.visible=false;
	}