Client-side number change

Questions
1

Hi there -
I have a stream of values coming in from OSC…let’s represent it with a simple
~streamOfValues = 3.rand;

Is there anything on the client-side that can detect if this has made a 0-to-1 transition?

I was thinking along the lines of ~streamOfValues.changed, but this doesn’t work as expected.

2

Hello!

Would you mind reviewing this structure and sharing your feedback?

(
var streamOfValues = { 3.rand.debug };
var netAddr = NetAddr("127.0.0.1", 57120);
var receivedCurrent = nil;
var receivedPrevious = nil;

OSCdef(\test, { |msg, time, addr, recvPort|
	var test = {
		"<- (previous:" + receivedPrevious + "; current:" + receivedCurrent ++ ")"
	};
	receivedPrevious = receivedCurrent; 
	receivedCurrent = msg[1];
	case 
	{ receivedPrevious == 1 and: receivedCurrent == 0} {
		var midinote = 69;
		(\midinote: midinote).play;
		"1-to-0-change. is playing midinote" + midinote + test.()
	}
	{ receivedPrevious == 0 and: receivedCurrent == 1} {
		var midinote = 93;
		(\midinote: midinote).play;
		"0-to-1-change. is playing midinote" + midinote + test.()
	}
	{ receivedPrevious.isNil } {
		"nothing to be compared" + test.()
	}
	{
		test.()
	}
	.postln
}, '/osc1', netAddr
); 

fork {
	20.do {
		netAddr.sendMsg("/osc1", streamOfValues.());
		0.1.wait
	}
}
)
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3

Thanks - this inspired me to make a slightly smaller version for my specific uses…

~streamOfValues = {2.rand};

~previousValue = 0;
~change = {|value|
	
	if ((~previousValue == 0) && (value==1))
	{"ok".postln;};
	~previousValue = value;
};

~change.(~streamOfValues.());
1 Like