Étape 3: Étape 3: Code
Télécharger les fichiers joints et copie et passé le code dans les fichiers pertinents. Ajout de keyClass.cpp et keyClass.h en tant que nouveaux fichiers.
ofApp.cpp Code
#include "ofApp.h" //int for storing the byte data from Arduino.
int byteData;
//--------------------------------------------------------------
void ofApp::setup(){ //General setup of look of window.
ofBackground(255);
ofSetColor(0);
//serial port setup. using COM3 for Windows port.
//Also using baud rate 9600, same in Arduino sketch.
sampleRate = 44100; // setting up the sampleRate
bufferSize = 512; // setting up the bufferSize
for( int i = 0; i < n.size(); i ++) { // looping through the vector of notes keys.emplace_back( new Key(n[i])); // because I'm using a uniqe_ptr I call emplace_back instead of push_back
}
ofSoundStreamSetup(2, 0, this, sampleRate, bufferSize, 4); // here I'm setting up the connection with the sound card using ofSoundStreamSetup
serial.setup("/dev/cu.usbmodem1421", 9600); // the port number will be different on every device and this is running on a Mac and that's why the port number is different. Make sure that the port number is correct before you run the code }
//--------------------------------------------------------------
void ofApp::update(){ //Simple if statement to inform user if Arduino is sending serial messages.
if (serial.available() < 0) { msg = "Arduino Error";
}
else { //While statement looping through serial messages when serial is being provided.
while (serial.available() > 0) { //byte data is being writen into byteData as int.
byteData = serial.readByte();
//byteData is converted into a string for drawing later.
msg = "cm: " + ofToString(byteData);
}
}
}
//--------------------------------------------------------------
void ofApp::draw(){ //drawing the string version pf byteData on oF window.
ofDrawBitmapString(msg, 50, 100);
//printing byteData into console.
cout << byteData << endl;
// These if statements checks the specific distance from the ultrasonic sensor and so depending in the distance a different note will be triggered
if(byteData >= 1 && byteData <= 2 ){ keys[0]->on();
}else{ keys[0]->off();
}
if(byteData >= 3 && byteData <= 4){ keys[1]->on();
}else{ touches [1] -> off() ; keys[1]->off(); }
if(byteData >= 5 && byteData <= 6){ keys[2]->on();
}else{ keys[2]->off();
}
if(byteData >= 7 && byteData <= 8){ keys[3]->on();
}else{ keys[3]->off();
}
if(byteData >= 9 && byteData <= 10){ keys[4]->on();
}else{ keys[4]->off();
}
if(byteData >= 11 && byteData <= 12){ keys[5]->on();
}else{ keys[5]->off();
}
if(byteData >= 13 && byteData <= 14){ keys[6]->on();
}else{ keys[6]->off();
}
if(byteData >= 15 && byteData <= 16){ keys[7]->on();
}else{ keys[7]->off();
}
}
void ofApp::audioOut( float * output, int bufferSize, int nChannels){ for(int i = 0; i < bufferSize; i ++) { // you need to loop through the bufferSize for(int j = 0; j < n.size(); j ++) { // looping through the vector of notes notes += keys[j]->play() / n.size();
}
myMix.stereo(notes, outputs, 0.5);
output[i * nChannels] = outputs[0];
output[i * nChannels + 1] = outputs[1];
}
}
<strong>ofApp.h</strong>
#pragma once<br>
#include "ofMain.h"
#include "ofxMaxim.h"
#include "keyClass.h"
class ofApp : public ofBaseApp{ public:
//Standard oF functions.
void setup();
void update();
void draw();
void audioOut( float * ouput, int bufferSize, int nChannels);
int bufferSize, sampleRate;
double notes;
double outputs[ 2 ];
//array of frequencies
vector n {261.63, 293.66, 329.63, 349.23, 392.00, 440.00, 493.88, 523.25 }; vector> keys;
maxiMix myMix;
//Custom variables for on screen string and font.
string msg;
//ofTrueTypeFont font;
//New serial object.
ofSerial serial;
};
keyClass.cpp Code
#include "keyClass.h"<br>
Key::Key(double _f) { freq = _f;
env.setAttack(1000);
env.setDecay(1);
env.setSustain(1);
env.setRelease(1000);
}
void Key::on() { env.trigger = 1;
}
void Key::off() { env.trigger = 0;
}
double Key:: play(){ return env.adsr(osc.sinewave(freq), env.trigger);
}
keyClass.h Code
#ifndef __keyboardofxMaxim__keyClass__<br> #define __keyboardofxMaxim__keyClass__
#include
#include "ofxMaxim.h"
class Key { public:
maxiOsc osc;
maxiEnv env;
double freq;
Key( double _f);
double play();
void on();
void off();
};
#endif /* defined(__keyboardofxMaxim__keyClass__) */
