Steemit Post

import processing.sound.*;
SinOsc sine;
Env env;

float attackTime = 0.001;
float sustainTime = 0.004;
float sustainLevel = 0.3;
float releaseTime = 0.5;

String myText = "0";

void setup() {
  size(600, 600);
  background(0);

  textAlign(CENTER, CENTER);
  textSize(30);

  // Create the sine oscillator.
  sine = new SinOsc(this);

  env = new Env(this);

}

void draw() {
  text(myText, 0, 0, width, height);
}

void mousePressed() {
 /* sine.play();
  sine.freq(Estring(Integer.parseInt(myText)));
  //sine.freq(200);
  env.play(sine, attackTime, sustainTime, sustainLevel, releaseTime);*/
  myText = "";
  background(0);
}

void keyPressed() {

  if (keyCode == ' ') {
    myText = "";
    background(0);
  } else if (keyCode != SHIFT && keyCode != CONTROL && keyCode != ALT) {
    //myText = "";
    myText += key;
    sine.play();
    sine.freq(Estring(Integer.parseInt(myText)));
    env.play(sine, attackTime, sustainTime, sustainLevel, releaseTime);
    background(0);
  }
}

float Estring(int fret) {
  // E2, 82.41 Hz
  float note;
  note = 82.41;
  for ( int i = 0; i < fret ; i++) {
    note *= 1.05;
  }
  if (fret == 0) {
    note = 82.41;
  }
  return note;
}