@Test
public void listen() {
SineString ss440 = new SineString(440.0);
ss440.pluck();
for (int i = 0; i < 40000; i++) {
StdAudio.play(ss440.sample());
ss440.tic();
}
}
public static void main(String[] args) {
while (!StdIn.isEmpty()) {
int pitch = StdIn.readInt();
double duration = StdIn.readDouble();
double[] a = note(pitch, duration);
StdAudio.play(a);
}
System.exit(0);
}
public static void main(String[] args) {
StdAudio.play("resources/nbody/2001.mid");
// setting the input to the file's contents
String fileName = "3body";
try {
System.setIn(new FileInputStream("resources/nbody/" + fileName + ".txt"));
} catch (Exception e) {
System.err.printf("Exception caught: %s", e.toString());
System.exit(0);
}
// grab the number of bodies, and the size of the universe as the fist two inputs
int numOfBodies = StdIn.readInt();
double sizeOfUniverse = StdIn.readDouble();
// create a nested array, with the first array holding an array of info for each of the planets
String[][] nBodyStringArray = new String[numOfBodies][6];
for (int i = 0; i < numOfBodies; i++) {
for (int j = 0; j < 6; j++) {
nBodyStringArray[i][j] = StdIn.readString();
}
}
// set the universe's scale
StdDraw.setXscale(-sizeOfUniverse, sizeOfUniverse);
StdDraw.setYscale(-sizeOfUniverse, sizeOfUniverse);
// initialize delta t
int timeStep = 25000;
// create an array from the previous nBodyStringArray, to hold doubles instead of strings, and
// to hold the acceleration
double[][] nBodyArray = new double[numOfBodies][7];
for (int i = 0; i < numOfBodies; i++) {
double px = Double.parseDouble(nBodyStringArray[i][0]);
double py = Double.parseDouble(nBodyStringArray[i][1]);
double vx = Double.parseDouble(nBodyStringArray[i][2]);
double vy = Double.parseDouble(nBodyStringArray[i][3]);
double mass = Double.parseDouble(nBodyStringArray[i][4]);
nBodyArray[i][0] = px;
nBodyArray[i][1] = py;
nBodyArray[i][2] = vx;
nBodyArray[i][3] = vy;
nBodyArray[i][4] = mass;
nBodyArray[i][5] = 0.0;
nBodyArray[i][6] = 0.0;
}
// create arrays to hold the force for the planets
double fx[] = new double[numOfBodies];
double fy[] = new double[numOfBodies];
// start the infinite drawing loop
while (true) {
// draw the background
StdDraw.picture(0, 0, "resources/nbody/starfield.jpg");
// calculate the x-force and y-force for the planets and store them in their respective
// array's
for (int i = 0; i < numOfBodies; i++) {
double px = nBodyArray[i][0];
double py = nBodyArray[i][1];
double mass = nBodyArray[i][4];
fx[i] = 0;
fy[i] = 0;
for (int j = 0; j < numOfBodies; j++) {
if (j != i) {
double nPx = nBodyArray[j][0];
double nPy = nBodyArray[j][1];
double nMass = nBodyArray[j][4];
double g = 6.67 * Math.pow(10, -11);
double deltaX = (nPx - px);
double deltaY = nPy - py;
double r = Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
double f = (g * mass * nMass) / (Math.pow(r, 2));
fx[i] += f * (deltaX / r);
fy[i] += f * deltaY / r;
}
}
}
// updating the position of the planets
for (int i = 0; i < numOfBodies; i++) {
// planet info
double px = nBodyArray[i][0];
double py = nBodyArray[i][1];
double vx = nBodyArray[i][2];
double vy = nBodyArray[i][3];
double mass = nBodyArray[i][4];
double ax = nBodyArray[i][5];
double ay = nBodyArray[i][6];
String pic = "resources/nbody/" + nBodyStringArray[i][5];
// update acceleration
ax = fx[i] / mass;
ay = fy[i] / mass;
// update velocity
vx = vx + timeStep * ax;
vy = vy + timeStep * ay;
// update position
px = px + timeStep * vx;
py = py + timeStep * vy;
// update data array
nBodyArray[i][0] = px;
nBodyArray[i][1] = py;
nBodyArray[i][2] = vx;
nBodyArray[i][3] = vy;
nBodyArray[i][5] = ax;
nBodyArray[i][6] = ay;
// draw each planet to the screen
StdDraw.picture(px, py, pic);
}
// show that drawing for 30 ms, before restarting the loop
StdDraw.show(30);
// t += 25000;
}
}
public static void main(String[] args) {
double[] soundData = StdAudio.read("ee20.wav");
StdAudio.play(soundData);
}
public static void main(String[] args) {
synthesizer.GuitarString[] melody = new synthesizer.GuitarString[37];
synthesizer.GuitarString[] cmaj = new synthesizer.GuitarString[8];
synthesizer.GuitarString[] gmaj = new synthesizer.GuitarString[8];
synthesizer.GuitarString[] amin = new synthesizer.GuitarString[8];
synthesizer.GuitarString[] fmaj = new synthesizer.GuitarString[8];
for (int i = 0; i < 37; i += 1) {
melody[i] = new synthesizer.GuitarString(440.0 * Math.pow(2, (i - 24.0) / 12.0));
}
int cmaj_index = 15;
int gmaj_index = 10;
int amin_index = 12;
int fmaj_index = 8;
int[] majorscale = {2, 2, 1, 2, 2, 2, 1, 2};
int[] minorscale = {2, 1, 2, 2, 1, 2, 2, 2};
int m = 0;
while (m < 8) {
cmaj[m] = new synthesizer.GuitarString(440.0 * Math.pow(2, (cmaj_index - 24.0) / 12.0));
cmaj_index += majorscale[m];
gmaj[m] = new synthesizer.GuitarString(440.0 * Math.pow(2, (gmaj_index - 24.0) / 12.0));
gmaj_index += majorscale[m];
amin[m] = new synthesizer.GuitarString(440.0 * Math.pow(2, (amin_index - 24.0) / 12.0));
amin_index += minorscale[m];
fmaj[m] = new synthesizer.GuitarString(440.0 * Math.pow(2, (fmaj_index - 24.0) / 12.0));
fmaj_index += majorscale[m];
m += 1;
}
synthesizer.GuitarString[] chords = new synthesizer.GuitarString[12];
chords[0] = new synthesizer.GuitarString(440.0 * Math.pow(2, (3 - 24.0) / 12.0));
chords[1] = new synthesizer.GuitarString(440.0 * Math.pow(2, (7 - 24.0) / 12.0));
chords[2] = new synthesizer.GuitarString(440.0 * Math.pow(2, (10 - 24.0) / 12.0));
// gmaj
chords[3] = new synthesizer.GuitarString(440.0 * Math.pow(2, (2 - 24.0) / 12.0));
chords[4] = new synthesizer.GuitarString(440.0 * Math.pow(2, (5 - 24.0) / 12.0));
chords[5] = new synthesizer.GuitarString(440.0 * Math.pow(2, (10 - 24.0) / 12.0));
// aminor
chords[6] = new synthesizer.GuitarString(440.0 * Math.pow(2, (3 - 24.0) / 12.0));
chords[7] = new synthesizer.GuitarString(440.0 * Math.pow(2, (7 - 24.0) / 12.0));
chords[8] = new synthesizer.GuitarString(440.0 * Math.pow(2, (12 - 24.0) / 12.0));
// fmaj
chords[9] = new synthesizer.GuitarString(440.0 * Math.pow(2, (3 - 24.0) / 12.0));
chords[10] = new synthesizer.GuitarString(440.0 * Math.pow(2, (8 - 24.0) / 12.0));
chords[11] = new synthesizer.GuitarString(440.0 * Math.pow(2, (12 - 24.0) / 12.0));
int z = 10000;
int c_index = 0;
int before = 0;
int total_time = 0;
while (total_time < 8) {
if (c_index == 12) {
c_index = 0;
}
chords[c_index].pluck();
c_index += 1;
chords[c_index].pluck();
c_index += 1;
chords[c_index].pluck();
c_index += 1;
int time = 0;
while (time < 8) {
int[] x = {0, 1, 2, 4, 5};
int c = x[((int) (Math.random() * 5))];
while (before == c) {
c = x[((int) (Math.random() * 5))];
}
before = c;
if (c_index == 3) {
cmaj[c].pluck();
} else if (c_index == 6) {
gmaj[c].pluck();
} else if (c_index == 9) {
amin[c].pluck();
} else {
fmaj[c].pluck();
}
while (z > 0) {
double sample = 0;
if (c_index == 3) {
sample = cmaj[c].sample();
} else if (c_index == 6) {
sample = gmaj[c].sample();
} else if (c_index == 9) {
sample = amin[c].sample();
} else {
sample = fmaj[c].sample();
}
for (int i = 0; i < 12; i += 1) {
sample += chords[i].sample();
}
StdAudio.play(sample);
for (int i = 0; i < 8; i += 1) {
if (i % 2 == 0) {
cmaj[i].tic();
gmaj[i].tic();
fmaj[i].tic();
amin[i].tic();
}
}
for (int i = 0; i < 12; i += 1) {
chords[i].tic();
}
z -= 1;
}
z = 10000;
time += 1;
}
total_time += 1;
}
}
public void StartSession() {
try {
seqformat entry;
LEDFlasher ledthread = null;
ScreenGraphicsThread sgthread = null;
// init threads
if (Main.useusb) {
LEDCtrl.init();
ledthread = new LEDFlasher("LEDFlasher1");
// ledthread.setPriority(1);
}
if (Main.screengraphics) {
sgthread = new ScreenGraphicsThread("ScreenGraphicsThread1");
}
// --loop entries
for (int j = 0; j < sequence.entrynum; j++) {
entry = sequence.entry[j];
System.out.println("entry:" + entry.type + entry.duration + entry.binfreq);
// --special handling for entries
if (entry.type.compareToIgnoreCase("sleep") == 0) {
if (Main.screengraphics) sgthread.status = 1;
if (Main.useusb) ledthread.status = 1;
RainLib.Sleep(1000 * 60 * entry.duration);
continue;
}
if (entry.type.contains(".mp3")) {
if (Main.screengraphics) sgthread.status = 1;
if (Main.useusb) ledthread.status = 1;
mp3playThread mp3thread = new mp3playThread(entry.type, entry.volume);
mp3thread.start();
continue;
}
if (entry.duration == 0) {
System.out.println("end of sequence reached");
break;
}
// --give entry parameters to flasher threads
if (Main.useusb) {
if (j == 0) ledthread.binfreq = entry.binfreq;
ledthread.setActive(entry.binfreq, entry.duration);
}
if (Main.screengraphics) {
if (j == 0) sgthread.binfreq = entry.binfreq;
sgthread.setActive(entry.binfreq, entry.duration);
}
// --play sound sample
for (int sample = 0; sample < entry.duration; sample++) {
// fill array with 1 sec of stereo 16-bit tonedata
for (int i = 0; i < SAMPLE_RATE * 2; i++) {
a[i] = Math.sin(2 * Math.PI * i / SAMPLE_RATE * entry.basefreq / 2);
a[i + 1] =
Math.sin(2 * Math.PI * i / SAMPLE_RATE * (entry.basefreq - entry.binfreq) / 2);
i++;
}
// System.out.println("playing sample: "+sample);
// StdAudio.toneplayled(0,a,SAMPLE_RATE*2,entry[j].binfreq);
// StdAudio.play(a);
StdAudio.toneplay(0, entry.volume, a, SAMPLE_RATE * 2);
if (Main.status == 0) break;
}
if (Main.status == 0) break;
}
if (Main.useusb) {
ledthread.status = 0;
LEDCtrl.LEDoff();
}
if (Main.screengraphics) {
sgthread.status = 0;
}
Main.status = 0;
} catch (Throwable e) {
System.out.println("Exception: " + e.toString());
}
}
