package {
import flash.display.*;
import flash.events.*;
import flash.utils.*;
import flash.text.*;
public class Main extends Sprite {
private var lastFrameTime:Number;
private var output:TextField = new TextField( );
public function Main() {
output.autoSize = TextFieldAutoSize.LEFT;
output.border = true;
output.background = true;
output.selectable = false;
addChild(output);
addEventListener(Event.ENTER_FRAME, enterFrameListener);
}
private function enterFrameListener (e:Event):void {
var now:Number = getTimer( );
var elapsed:Number = now - lastFrameTime;
var framesPerSecond:Number = Math.round(1000/elapsed);
output.text = "Time since last frame: " + elapsed
+ "\nExtrapolated actual frame rate: " + framesPerSecond
+ "\nDesignated frame rate: " + stage.frameRate;
lastFrameTime = now;
}
}
}