AfflictionNetworks/narya
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Use a Timer instead of ENTER_FRAME.

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This is a potentially more dangerous change, but nothing
seems awry. Eyes peeled!


git-svn-id: svn+ssh://src.earth.threerings.net/narya/trunk@5017 542714f4-19e9-0310-aa3c-eee0fc999fb1
This commit is contained in:
Ray Greenwell
2008-04-23 18:17:42 +00:00
parent b367372dc6
commit b65bdd47e1
1 changed files with 12 additions and 11 deletions
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src/as/com/threerings/util/MethodQueue.as
+12 -11
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@@ -21,9 +21,9 @@
package com.threerings.util { package com.threerings.util {
import flash.display.Sprite; import flash.events.TimerEvent;
import flash.events.Event; import flash.utils.Timer;
/** /**
* A simple mechanism for queueing functions to be called on the next frame. * A simple mechanism for queueing functions to be called on the next frame.
@@ -37,15 +37,13 @@ public class MethodQueue
public static function callLater (fn :Function, args :Array = null) :void public static function callLater (fn :Function, args :Array = null) :void
{ {
_methodQueue.push([fn, args]); _methodQueue.push([fn, args]);
if (!_d.hasEventListener(Event.ENTER_FRAME)) { _t.start(); // starts the timer if it's not already running
_d.addEventListener(Event.ENTER_FRAME, handleEnterFrame);
}
} }
/** /**
* Handle a frame event: call any queued functions. * Handle a timer event: call any queued functions.
*/ */
protected static function handleEnterFrame (event :Event) :void protected static function handleTimer (event :TimerEvent) :void
{ {
// swap out the working set // swap out the working set
var methods :Array = _methodQueue; var methods :Array = _methodQueue;
@@ -65,16 +63,19 @@ public class MethodQueue
} }
// If no new functions were added while we were calling the current set, // If no new functions were added while we were calling the current set,
// then remove the listener. // then stop firing
if (_methodQueue.length == 0) { if (_methodQueue.length == 0) {
_d.removeEventListener(Event.ENTER_FRAME, handleEnterFrame); _t.stop();
} }
} }
/** A display object on which we listen for ENTER_FRAME. */ /** A timer that will fire as quickly as possible. */
protected static var _d :Sprite = new Sprite(); protected static var _t :Timer = new Timer(1);
/** The currently queued functions. */ /** The currently queued functions. */
protected static var _methodQueue :Array = []; protected static var _methodQueue :Array = [];
// a bit of static initialization
_t.addEventListener(TimerEvent.TIMER, handleTimer);
} }
} }