BotanJS/botanjs/src/System/Cycle/_this.js
2015-08-14 18:12:10 +08:00

109 lines
2.2 KiB
JavaScript

(function(){
var ns = __namespace( "System.Cycle" );
/** @type {System.Tick} */
var utils = __import( "System.utils" );
/** @type {System.Tick} */
var Tick = __import( "System.Tick" );
/** @type {System.Debug} */
var debug = __import( "System.Debug" );
var tList = [];
var stepper = function()
{
var thisTime = new Date().getTime();
// 0: Callback
// 1: scheduled run time
// 2: Permanent
// ( 3: id )
// 4: interval
for ( var i in tList )
{
var f = tList[i];
if( f && thisTime > f[1] )
{
try
{
f[0]();
}
catch(e)
{
debug.Error(e);
delete tList[i];
continue;
}
if( f[2] )
{
delete tList[i];
}
else
{
f[1] = thisTime + f[4];
}
}
}
};
// Should bind "func" before register
var registerDelay = function (func, milliSec)
{
tList[ tList.length ] = [ func, new Date().getTime() + milliSec, true ];
};
var registerPermanentTicker = function ( id, func, interval )
{
for ( var i in tList )
{
if( tList[i][3] == id )
return false;
}
tList[ tList.length ] = [ func, new Date().getTime() + interval, false, id, interval ];
};
var deletePermanentTicker = function ( id )
{
// 3: id
for ( var i in tList )
{
if( tList[i][3] == id )
delete tList[i];
}
};
var next = function( func )
{
tList[ tList.length ] = [ func, 0, true ];
};
var ourTick = new Tick();
ourTick.putStepper( stepper );
var gTickStart = function( e )
{
e.target.removeEventListener( "NS_IMPORT", gTickStart );
var TICK = __import( "System.Cycle.TICK", true );
if( TICK != ourTick && TICK.started )
{
debug.Info( "[System.Cycle] Global Tick exists" );
ourTick = null;
return;
}
debug.Info( "[System.Cycle] Creating global Tick" );
ourTick.start();
};
ns.addEventListener( "NS_IMPORT", gTickStart );
ns[ NS_EXPORT ]( EX_FUNC, "next", next );
ns[ NS_EXPORT ]( EX_FUNC, "delay", registerDelay );
ns[ NS_EXPORT ]( EX_FUNC, "perma", registerPermanentTicker );
ns[ NS_EXPORT ]( EX_FUNC, "permaRemove", deletePermanentTicker );
ns[ NS_EXPORT ]( EX_READONLY_GETTER, "TICK", function(){ return ourTick; } );
})();