// Real time display of fps frame rate, AS3 category
package
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Sprite;
import flash.events.Event;
import flash.geom.Rectangle;
import flash.system.System;
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import flash.text.TextFormat;
import flash.utils.getTimer;
public class Fps extends Sprite
{
private var fps:TextField;
private var mem:TextField;
private var instance:Fps;
private var bitmapdata:BitmapData;
private var i:int = 0;
private var n:int = 10;
private var diagramTimer:int;
private var tfTimer:int;
private var skins:int = -1;
private var skinsChanged:int = 0;
private static const diagramHeight:uint = 40;
private static const diagramWidth:uint = 60;
private static const maxMemory:uint = 500000000;
public function Fps()
{
this.addEventListener(Event.ADDED_TO_STAGE,init);
}
public function init(e:Event):void
{
var bitmap:Bitmap = null;
this.removeEventListener(Event.ADDED_TO_STAGE,init);
fps = new TextField();
mem = new TextField();
if(instance == null) {
fps.defaultTextFormat = new TextFormat("Tahoma", 10, 16711680);
fps.autoSize = TextFieldAutoSize.LEFT;
fps.text = "FPS:" + Number(stage.frameRate).toFixed(2);
fps.x = -diagramWidth - 2;
addChild(fps);
mem.defaultTextFormat = new TextFormat("Tahoma", 10, 65280);
mem.autoSize = TextFieldAutoSize.LEFT;
mem.text = "MEM:" + byteToString(System.totalMemory);
mem.x = -diagramWidth - 2;
mem.y = fps.y + 10;
addChild(mem);
bitmapdata = new BitmapData(diagramWidth,diagramHeight,true,255);
bitmap = new Bitmap(bitmapdata);
bitmap.y = 24;
bitmap.x = -diagramWidth;
addChildAt(bitmap,0);
addEventListener(Event.ENTER_FRAME,onEnterFrame);
diagramTimer = getTimer();
tfTimer = getTimer();
}
}
private function onEnterFrame(e:Event):void
{
i++;
if(i >= n) {
i = 0;
fps.text = "FPS: " + Number(1000 * n / (getTimer() - tfTimer)).toFixed(2);
tfTimer = getTimer();
}
var _loc_2:* = 1000 / (getTimer() - diagramTimer);
var _loc_3:* = _loc_2 > stage.frameRate ? (1) : (_loc_2 / stage.frameRate);
diagramTimer = getTimer();
bitmapdata.scroll(1, 0);
bitmapdata.fillRect(new Rectangle(0, 0, 1, bitmapdata.height), 2852126720);
bitmapdata.setPixel32(0, diagramHeight * (1 - _loc_3), 4294901760);
mem.text = "MEM: " + byteToString(System.totalMemory);
var ski:int = skins == 0 ? (0) : (skinsChanged / skins);
bitmapdata.setPixel32(0, diagramHeight * (1 - ski), 4294967295);
var meoryPer:Number = System.totalMemory / maxMemory;
bitmapdata.setPixel32(0, diagramHeight * (1 - meoryPer), 4278255360);
}
private function byteToString(byte:uint):String
{
var byteStr:String = null;
if (byte < 1024)
{
byteStr = String(byte) + "b"; 94. }
else if (byte < 10240)
{ byteStr = Number(byte / 1024).toFixed(2) + "kb";
} else if (byte < 102400)
{
byteStr = Number(byte / 1024).toFixed(1) + "kb";
}
else if (byte < 1048576) {
byteStr = Math.round(byte / 1024) + "kb";
}
else if (byte < 10485760)
{
byteStr = Number(byte / 1048576).toFixed(2) + "mb";
}
else if (byte < 104857600)
{
byteStr = Number(byte / 1048576).toFixed(1) + "mb";
}
else
{
byteStr = Math.round(byte / 1048576) + "mb";
}
return byteStr;
}
}
}
// This way, you can see the frame rate and memory usage in real-time on the flash interface
var fps:Fps = new Fps();
fps.x = 100;
fps.y = 20;
addChild(fps);
Hey! Why don’t you use Starling AS3 for developing with ActionScript instead of the old Flash display list? It offers many improvements, from performance to mobile-friendliness…The FPS stat above, for example, is instantly available.
Why don’t you use Starling AS3 for developing with ActionScript instead of the old Flash display list? It offers many improvements, from performance to mobile-friendliness…The FPS stat above, for example, is instantly available.