<!doctype html><html lang='en'><head><title>AppClock | SuperCollider 3.9.3 Help</title> <link rel='stylesheet' href='./../scdoc.css' type='text/css' /> <link rel='stylesheet' href='./../frontend.css' type='text/css' /> <link rel='stylesheet' href='./../custom.css' type='text/css' /> <meta http-equiv='Content-Type' content='text/html; charset=UTF-8' /> <script> var helpRoot = './..'; var scdoc_title = 'AppClock'; var scdoc_sc_version = '3.9.3'; </script> <script src='./../scdoc.js' type='text/javascript'></script> <script src='./../docmap.js' type='text/javascript'></script> <script src='./../prettify.js' type='text/javascript'></script> <script src='./../lang-sc.js' type='text/javascript'></script> </head> <body onload='fixTOC();prettyPrint()'> <div id='toc'> <div id='toctitle'>AppClock:</div> <span class='toc_search'>Filter: <input id='toc_search'></span><ul class='toc'><li class='toc1'><a href='#description'>Description</a></li> <ul class='toc'></ul><li class='toc1'><a href='#classmethods'>Class methods</a></li> <ul class='toc'><li class='toc3'><a href='#*sched'>sched</a> </li> <li class='toc3'><a href='#*clear'>clear</a> </li> <li class='toc3'><a href='#*play'>play</a> </li> <li class='toc3'><a href='#*tick'>tick</a> </li> <li class='toc2'><a href='#Inherited%20class%20methods'>Inherited class methods</a></li> </ul><li class='toc1'><a href='#instancemethods'>Instance methods</a></li> <ul class='toc'><li class='toc2'><a href='#Inherited%20instance%20methods'>Inherited instance methods</a></li> </ul></ul></div><div class='contents'> <div id='menubar'></div> <div class='header'> <div id='label'> <span id='folder'>Classes</span> | <span id='categories'><a href='./../Browse.html#Scheduling'>Scheduling</a> > <a href='./../Browse.html#Scheduling>Clocks'>Clocks</a></span> </div><h1>AppClock<span id='superclasses'> : <a href="../Classes/Clock.html">Clock</a> : <a href="../Classes/Object.html">Object</a></span> </h1> <div id='summary'>Clock running on main application thread</div> </div> <div class='subheader'> <div id='filename'>Source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Core/Clock.sc' title='/Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Core/Clock.sc'>Clock.sc</a></div><div id='related'>See also: <a href="./../Classes/SystemClock.html">SystemClock</a>, <a href="./../Classes/TempoClock.html">TempoClock</a></div> </div> <h2><a class='anchor' name='description'>Description</a></h2> <p>SystemClock is more accurate, but cannot call GUI primitives. <p>You will need to use the <a href="./../Classes/SystemClock.html">SystemClock</a> to get accurate/musical scheduling. <p>See <a href="./../Classes/Clock.html">Clock</a> for general explanation of how clocks operate.<h2><a class='anchor' name='classmethods'>Class Methods</a></h2> <h3 class='method-code'><span class='method-prefix'>AppClock.</span><a class='method-name' name='*sched' href='./../Overviews/Methods.html#sched'>sched</a>(<span class='argstr'>delta</span>, <span class='argstr'>item</span>)</h3> <div class='method'> <p>The float you return specifies the delta to resched the function for. Returning nil will stop the task from being rescheduled.<pre class='code prettyprint lang-sc'>( AppClock.sched(0.0,{ arg time; ["AppClock has been playing for ",time].postln; rrand(0.1,0.9); }); )</pre> <p><pre class='code prettyprint lang-sc'>( AppClock.sched(2.0,{ "2.0 seconds later".postln; nil; }); )</pre> </div><h3 class='method-code'><span class='method-prefix'>AppClock.</span><a class='method-name' name='*clear' href='./../Overviews/Methods.html#clear'>clear</a></h3> <div class='method'> <p>Clear the AppClock's scheduler to stop it.<pre class='code prettyprint lang-sc'>AppClock.clear;</pre> </div><h3 class='method-code'><span class='method-prefix'>AppClock.</span><a class='method-name' name='*play' href='./../Overviews/Methods.html#play'>play</a>(<span class='argstr'>task</span>)</h3> <div class='supmethod'>From superclass: <a href='./../Classes/Clock.html'>Clock</a></div> <div class='method'> <p>The <a href="./../Classes/Routine.html">Routine</a> (or <a href="./../Classes/Task.html">Task</a>) yields a float value indicating the delta (secs) for the AppClock to wait until resuming the Routine.<pre class='code prettyprint lang-sc'>( var w, r; w = Window.new("trem", Rect(512, 256, 360, 130)); w.front; r = Routine({ arg appClockTime; ["AppClock has been playing for secs:",appClockTime].postln; 60.do({ arg i; 0.05.yield; w.bounds = w.bounds.moveBy(10.rand2, 10.rand2); w.alpha = cos(i*0.1pi)*0.5+0.5; }); 1.yield; w.close; }); AppClock.play(r); )</pre> </div><h3 class='method-code'><span class='method-prefix'>AppClock.</span><a class='method-name' name='*tick' href='./../Overviews/Methods.html#tick'>tick</a></h3> <div class='method'> <p>AppClock.tick is called periodically by the SuperCollider language interpreter. This updates the <a href="./../Classes/Scheduler.html">Scheduler</a> and causes any scheduled tasks to be executed. You should never call this method yourself.</div><h3><a class='anchor' name='Inherited%20class%20methods'>Inherited class methods</a></h3> <div id='inheritedclassmets'></div><h2><a class='anchor' name='instancemethods'>Instance Methods</a></h2> <h3><a class='anchor' name='Inherited%20instance%20methods'>Inherited instance methods</a></h3> <div id='inheritedinstmets'></div><div class='doclink'>helpfile source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/AppClock.schelp'>/Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/AppClock.schelp</a><br>link::Classes/AppClock::<br></div></div></body></html>