Swapping colors in midi sketch
in
Contributed Library Questions
•
1 year ago
Hi guys, I'm still working on this piece of code, I was wondering if anyone could tell me how to change between colors in this sketch. When I strike a note it draws in as I want, however it just continues to draw in continuously, and I've been trying to get it display white (or not at all) if the note is not down.
Here is the code;
- //Original sketch 'rwMidi_Droplets'
- //Source: http://krazydad.com/processing_music/
- import rwmidi.*; //Import the library
- MidiOutput myOutput; // The MidiBus
- MidiInput myInput;
- boolean midiThru = false; // echo all received midi in messages to the midi out device
- int maxNotes = 128;
- class MNote {
- long startTime;
- int pitch;
- int velocity;
- boolean isOn = false;
- MNote(int pitch) {
- this.pitch = pitch;
- }
- void init(int pitch, int velocity)
- {
- int start = millis();
- this.pitch = pitch;
- this.velocity = velocity;
- this.isOn = true;
- }
- void render()
- {
- if (!isOn)
- return;
- float a = 100;
- int currentTime = millis();
- int rotation = 50000;
- float rot = (currentTime%rotation)* PI*2 / rotation;
- float elapsed = (millis() - startTime)*.001;
- float hueV = (this.pitch % 12) / 12.0;
- float lum = constrain(1+pow(elapsed/4,2), .05, 1);
- float sat = lum;
- noStroke();
- fill(hueV,sat,lum,20);
- for (int i = 0; i < 1; ++i) {
- ellipse(sin(rot)*(pitch*4-3*i)+screen.width/2,
- cos(rot)*(pitch*4-3*i)+screen.height/2,2,2);
- }
- }
- }
- void setup() {
- size(screen.width,screen.height);
- colorMode(HSB, 1);
- background(0,0,99);
- println("INPUT");
- MidiInputDevice idevices[] = RWMidi.getInputDevices();
- for (int i = 0; i < idevices.length; i++) {
- println(i + ": " + idevices[i].getName());
- }
- println("OUTPUT");
- MidiOutputDevice odevices[] = RWMidi.getOutputDevices();
- for (int i = 0; i < odevices.length; i++) {
- println(i + ": " + odevices[i].getName());
- }
- // MODIFY THIS FOR YOUR MIDI SETUP
- // Parent In Out
- // | | |
- myOutput = odevices[1].createOutput();
- myInput = idevices[1].createInput();
- myInput.plug(this);
- smooth();
- for (int i = 0; i < maxNotes; ++i) {
- notes[i] = new MNote(i);
- }
- }
- MNote[] notes = new MNote[128];
- void draw() {
- //background(0,0,99);
- for (int i = 0; i < maxNotes; ++i) {
- notes[i].render();
- }
- }
- void noteOnReceived(Note note) {
- // Receive a noteOn
- int pitch = note.getPitch();
- int velocity = note.getVelocity();
- int channel = 0;
- println("Note On : ch=" +channel+" pitch="+pitch+" velocity="+velocity);
- if (midiThru) {
- myOutput.sendNoteOn(channel, pitch, velocity); // Send a Midi noteOn
- }
- notes[pitch].init(pitch, velocity);
- }
- void noteOffReceived(Note note) {
- int pitch = note.getPitch();
- int velocity = note.getVelocity();
- int channel = 0;
- // Receive a noteOff
- // println("Note Off: ch=" +channel+" pitch="+pitch+" velocity="+velocity);
- if (midiThru) {
- myOutput.sendNoteOff(channel, pitch, velocity); // Send a Midi noteOn
- }
- notes[pitch].isOn = false;
- }
- void programChangeReceived(ProgramChange pc)
- {
- }
- void sysexReceived(SysexMessage sm) {
- }
- void controllerChangeReceived(Controller c) {
- int number = c.getCC();
- int value = c.getValue();
- int channel = 0;
- // Receive a controllerChange
- // println("Ctrl Ch : ch=" +channel+" number="+number+" value="+value);
- if (midiThru) {
- myOutput.sendController(channel, number, value); // Send a controllerChange
- }
- }
Any help would be greatly appreciated, I'm completely stuck I've been trying to crack this code for weeks now and I'm pretty much at my wits end... I'm sure its probably a relatively quick fix as well, I just can't figure it out.
Thanks
Thanks
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