AppClock


superclass: Clock


SystemClock is more accurate, but cannot call Cocoa primitives.

AppClock is less accurate (uses NSTimers) but can call Cocoa primitives.


You will need to use the SystemClock to get accurate/musical scheduling.




*sched(delta,task)

the float you return specifies the delta to resched the function for


AppClock.sched(0.0,{ arg time; 

["AppClock has been playing for ",time].postln; 

rrand(0.1,0.9) 

});


returning nil will stop the task from being rescheduled


AppClock.sched(2.0,{ 

"2.0 seconds later".postln; 

nil 

});


*clear

clear the AppClock's scheduler to stop it


AppClock.clear


*play(task)

The task/Routine yields a float value indicating the delta (secs) for the AppClock to wait

until resuming the Routine.


(

var w, r;

w = SCWindow("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);

)

*tick

AppClock.tick is called periodically by the SuperCollider application itself.

This updates the Scheduler and causes any scheduled tasks to be executed.  You

should never call this method yourself.



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