Dave Hoover
c612491d16
git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@1106 ed5b42cb-e716-0410-a449-f6a68f950b19
79 lines
2.2 KiB
ActionScript
79 lines
2.2 KiB
ActionScript
//
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// $Id$
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//
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// Nenya library - tools for developing networked games
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// Copyright (C) 2002-2011 Three Rings Design, Inc., All Rights Reserved
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// http://code.google.com/p/nenya/
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//
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// This library is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License as published
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// by the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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package com.threerings.media {
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import flash.events.TimerEvent;
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import flash.utils.Timer;
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import com.threerings.util.ArrayUtil;
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/**
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* Registers objects that wish to be sent a tick() call once per frame.
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*/
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public class Ticker
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{
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public function start () :void
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{
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_t.addEventListener(TimerEvent.TIMER, handleTimer);
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_start = new Date().time;
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_t.start();
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}
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public function stop () :void
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{
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_t.removeEventListener(TimerEvent.TIMER, handleTimer);
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_t.stop();
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}
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public function handleTimer (event :TimerEvent) :void
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{
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tick(int(new Date().time - _start));
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}
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protected function tick (tickStamp :int) :void
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{
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for each (var tickable :Tickable in _tickables) {
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tickable.tick(tickStamp);
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}
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}
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public function registerTickable (tickable :Tickable) :void
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{
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_tickables.push(tickable);
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}
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public function removeTickable (tickable :Tickable) :void
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{
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ArrayUtil.removeFirst(_tickables, tickable);
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}
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/** Everyone who wants to hear about our ticks. */
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protected var _tickables :Array = [];
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/** A timer that will fire every "frame". */
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protected var _t :Timer = new Timer(1);
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/** What time our ticker started running - tickStamps will be relative to this time. */
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protected var _start :Number;
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}
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} |