// nice example by dan sheldon showing how to use a random number generator and a fader
// remember that rand outputs a value between its argument and zero, at the resolution
// (real or int) of its argument.... (lp)


(

	var w, a, b, button, output;
	
	w = GUIWindow.new("rand test", Rect.newBy( 582, 251, 295, 119 ));
	StringView.new( w, Rect.newBy( 21, 13, 42, 22 ), "range");
	a = NumericalView.new( w, Rect.newBy( 69, 15, 64, 20 ), "NumericalView", 0, 1, 10, 1, 'linear');
	b = SliderView.new( w, Rect.newBy( 143, 15, 128, 20 ), "SliderView", 0, 1, 10, 1, 'linear');
	
	button = ButtonView.new( w, Rect.newBy( 76, 46, 150, 22 ), "generate random number", 0, 0, 1, 0, 'linear');
	
	StringView.new( w, Rect.newBy( 79, 81, 46, 22 ), "output");
	output = NumericalView.new( w, Rect.newBy( 132, 81, 64, 20 ), "NumericalView", 0, -1e+10, 1e+10, 0, 'linear');

	a.action = {b.value = a.value;};
	b.action = {a.value = b.value;};

	button.action = {output.value = rand(a.value) ;};
	
	
)

// use rand and spawn to generate a randomized melody, calling random values in real time
// lp, ds
(

	var w, a, b, s,  env, output, randFunc, dur;
	
	w = GUIWindow.new("rand test", Rect.newBy( 582, 251, 295, 119 ));
	StringView.new( w, Rect.newBy( 21, 13, 42, 22 ), "range");
	a = NumericalView.new( w, Rect.newBy( 69, 15, 64, 20 ), "NumericalView", 0, 1, 10, 1, 'linear');
	b = SliderView.new( w, Rect.newBy( 143, 15, 128, 20 ), "SliderView", 0, 1, 10, 1, 'linear');
	
	StringView.new( w, Rect.newBy( 79, 81, 46, 22 ), "output");
	output = NumericalView.new( w, Rect.newBy( 132, 81, 64, 20 ), "NumericalView", 0, -1e+10, 1e+10, 0, 'linear');

	a.action = {b.value = a.value};
	b.action = {a.value = b.value};
	
	{
		dur = 0.1;
		env = Env.linen(0.05* dur, 0.6 * dur, 0.3 * dur);

		t = Spawn.ar({SinOsc.ar((200 * rand(a.value)), 0, EnvGen.kr(env))}, 1, dur + rand(a.value) , 10000);
		t

	}.play;

)


// plot a random signal, modulated by a sine wave.... this shows how to use random signals, not numbers (functions)
// lp, ds
(
	{
		s = SinOsc.ar(1000);
		t = abs(WhiteNoise.ar(s));
		[abs(s),t]
	}.plot
)