modify a two dimensionnal array after declare it

Contributed Library Questions

sachaamm

modify a two dimensionnal array after declare it

in Contributed Library Questions • 10 months ago

i try to use jm etude

in this sketch i want to declare a 2d array because if i put my 2d array in setup() jm etude can not use my 2d array.

i want to modify the values contained in my 2d array in draw with key Pressed

can i do this? could explain me how i can modify in a dynamic mode my 2d array values after declare it?

thanks

////////////////

import jmetude.*;

Etude e;

float notes[][] = { { 80, 4.0 } };

void setup() {

noLoop();

size(200, 100);

e = new Etude(this);

e.createPhrase("phrase");

}

void draw() {

fill(notes[0][0]);

rect(50, 50, 50, 50);

if (keyPressed) {

float notes[][] = { { 50, 4.0} };

splice(notes, "50 + 4", 0);

}

e.addPhraseNoteList("phrase", notes);

}

void mousePressed() {

e.stopMIDI();

int inst =0;

e.setPhraseInstrument("phrase", inst);

e.playMIDI("phrase");

}

/////////////////////////

Replies(1)

Chrisir

Re: modify a two dimensionnal array after declare it

10 months ago

I just demonstrated how to append new notes when you press a or b

// import jmetude.*;
//Etude e;
float notes[][] = {
{
80, 4.0
}
};
void setup() {
// noLoop();
size(200, 100);
}
void draw() {
fill(notes[0][0]);
rect(50, 50, 50, 50);
/*
if (keyPressed) {
float notes[][] = {
{
50, 4.0
}
};
splice(notes, "50 + 4", 0);
}
*/
for (int i =0 ; i < notes.length; i++) {
for (int j =0 ; j < notes[i].length; j++) {
print (notes[i][j] + " | ");
}
println();
} // for
println("--------------------");
// e.addPhraseNoteList("phrase", notes);
}
void keyPressed() {
switch (key) {
case 'a':
float [] element1 = {
380, 3.0
};
notes = (float [][]) append ( notes, element1 );
break;
case 'b':
float [] element2 = {
420, 2.0
};
notes = (float [][]) append ( notes, element2 );
break;
} // switch
}

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