lib-flex-animation-code-10-org-as3lib-kitchensync-utils-FrameRateView.ax (swf ) [ flash ] flex
package org.as3lib.kitchensync.utils
{
import flash.text.TextField;
import flash.text.TextFieldAutoSize;
import org.as3lib.kitchensync.core.ISynchronizerClient;
import org.as3lib.kitchensync.core.KitchenSyncEvent;
import org.as3lib.kitchensync.core.Synchronizer;
import org.as3lib.kitchensync.core.Timestamp;
A text field that displays the approximate buffered framerate of the synchronizer. Use it as you would a TextField. @use <code> public var frameRateView:TextField = new Synchronizer@ax-lib-flex-animation-code-10-org-as3lib-kitchensync-utils-FrameRateView(); addChild(frameRateView); </code>
see: org.as3lib.kitchensync.core.Synchronizer
author: Mims H. Wright @since 1.5
public class @ax-lib-flex-animation-code-10-org-as3lib-kitchensync-utils-FrameRateView extends TextField implements ISynchronizerClient
{
Number of frames between each update
public var updateFrequency:int = 5;
private var _previousTime:int = 0;
The function used to format the text displayed in the textfield. This can be replaced by the user.
public var formattingFunction:Function = function (frameRate:int):String {
return frameRate.toString() + " FPS";
};
This array acts as a buffer to hold the past few framerates.
private var _frameRateHistory:Array = [];
The number of framerates to hold in the history
private var _frameRateHistoryDepth:int = 10;
public function get actualFrameRate():Number {
var rate:int = 0;
for each (var history:int in _frameRateHistory) {
rate += history;
}
rate /= _frameRateHistory.length;
return Math.round(1000/rate);
}
Constructor
public function @ax-lib-flex-animation-code-10-org-as3lib-kitchensync-utils-FrameRateView()
{
super();
this.autoSize = TextFieldAutoSize.LEFT;
Synchronizer.getInstance().registerClient(this);
}
Display is updated by the synchronizer pulses.
public function update(currentTimestamp:Timestamp):void {
_frameRateHistory.unshift(currentTimestamp.currentTime - _previousTime);
if (_frameRateHistory.length > _frameRateHistoryDepth) {
_frameRateHistory.pop();
}
_previousTime = currentTimestamp.currentTime;
if (currentTimestamp.currentFrame %5 == 0) {
this.text = formattingFunction(actualFrameRate);
}
}
}
}
(C) Æliens 19/08/2009
You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.
