net.beadsproject.beads.ugens

Class Change

java.lang.Object

net.beadsproject.beads.core.Bead

net.beadsproject.beads.core.UGen

net.beadsproject.beads.ugens.Change

public class Change
extends UGen

Outputs 1 if the input signal is increasing; -1 if it is decreasing; 0 if it is the same. Use Delta to find how much a signal is changing.

Version:

0.9.5

Author:

Benito Crawford

Nested Class Summary

Nested classes/interfaces inherited from class net.beadsproject.beads.core.UGen

UGen.OutputInitializationRegime, UGen.OutputPauseRegime

Field Summary

Fields inherited from class net.beadsproject.beads.core.UGen

bufferSize, bufIn, bufOut, context, ins, outputInitializationRegime, outputPauseRegime, outs

Constructor Summary

Constructors

Constructor and Description
Change(AudioContext context) Bare constructor.
Change(AudioContext context, UGen ugen) Constructor for a given input UGen.

Method Summary

Modifier and Type	Method and Description
void	calculateBuffer() Called by the signal chain to update this UGen's ouput data.
void	directionChange(int newDirection) Called when the input signal changes direction.

Methods inherited from class net.beadsproject.beads.core.UGen

addDependent, addInput, addInput, clearDependents, clearInputConnections, containsInput, crossfadeInput, getConnectedInputs, getContext, getEnvelopes, getIns, getNumberOfConnectedUGens, getNumberOfDependents, getOutBuffer, getOuts, getTimeTakenLastUpdate, getValue, getValue, getValueDouble, getValueDouble, initializeOuts, isTimerMode, isUpdated, noInputs, pause, printInBuffers, printInputList, printOutBuffers, removeAllConnections, removeConnection, removeDependent, setOutsToPause, setTimerMode, setValue, update, zeroIns, zeroOuts

Methods inherited from class net.beadsproject.beads.core.Bead

getKillListener, getName, isDeleted, isPaused, kill, message, messageReceived, setKillListener, setName, start, toString

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Change

public Change(AudioContext context)

Bare constructor.

Parameters:

context - The audio context.

Change

public Change(AudioContext context,
              UGen ugen)

Constructor for a given input UGen.

Parameters:

context - The audio context.

ugen - The input UGen.

Method Detail

calculateBuffer

public void calculateBuffer()

Description copied from class: UGen

Called by the signal chain to update this UGen's ouput data. Subclassses of UGen should implement the UGen's DSP perform routine here. In general this involves grabbing data from UGen.bufIn and putting data into UGen.bufOut in some way. UGen.bufIn and UGen.bufOut are 2D arrays of floats of the form float[numChannels][bufferSize]. The length of the buffers is given by UGen.bufferSize, and the number of channels of the input and output buffers are given by UGen.ins and UGen.outs respectively.

Specified by:

calculateBuffer in class UGen

directionChange

public void directionChange(int newDirection)

Called when the input signal changes direction. Does nothing by default; can be overridden to execute code when this happens.

Parameters:

newDirection - The new direction of the signal (1 or -1);