Planetary Keys (Processing + MaKey MaKey)

PlanetaryKeys.pde

/**
* Planetary Keys
* 
* for use with conductive-painted keyboard
* and MaKey MaKey
*/
 
import ddf.minim.*;
import ddf.minim.signals.*;
 
Minim minim;
AudioOutput out;
SineWave sine;
 
public int ndx = 0; // index
 
void setup() {
size(400, 400);
 
minim = new Minim(this);
	// get a line out from Minim, default bufferSize is 1024,
	// default sample rate is 44100, bit depth is 16
	out = minim.getLineOut(Minim.MONO);
	// create a sine wave Oscillator, set to 440 Hz, at 0.5 amplitude,
	// sample rate from line out
	sine = new SineWave(440, 0.5, out.sampleRate());
	// add the oscillator to the line out
	out.addSignal(sine);
}
 
void draw() {
	switch(ndx) { // based on index value...
		case 0: // stop
		background(0);
		sine.setFreq(0);
		break;
		case 1: // Jupiter
		background(color(128,0,128)); // Violet
		sine.setFreq(466.16); // A#
		break;
		case 2: // Sun
		background(color(255,128,0)); // Orange
		sine.setFreq(293.66); // D
		break;
		case 3: // Mercury
		background(color(255,255,0)); // Yellow
		sine.setFreq(329.63); // E
		break;
		case 4: // Saturn
		background(color(64,0,192)); // Blue-Violet
		sine.setFreq(440); // A
		break;
		case 5: // Mars
		background(color(255,0,0)); // Red
		sine.setFreq(261.63); // C
		break;
		case 6: // Venus
		background(color(0,128,0)); // Green
		sine.setFreq(369.99); // F#
		break;
	}
}
 
void keyPressed() { // change index val when key pressed
	switch(key) {
		case 'w': // Jupiter
		ndx = 1;
		break;
		case 'a': // Sun
		ndx = 2;
		break;
		case 's': // Mercury
		ndx = 3;
		break;
		case 'd': // Saturn
		ndx = 4;
		break;
		case 'f': // Mars
		ndx = 5;
		break;
		case 'g': // Venus
		ndx = 6;
	}
}
 
void keyReleased() { // reset index val when key released
	ndx = 0;
}
 
void stop() {
	// close output and stop minim
	out.close();
	minim.stop();
	 
	super.stop();
}