* Arduino SpookySounds
* --------------------
*
* Draws a scary eyeball and plays a spooky sound whenever a
* number is sent on a serial port.
* Press space bar to clear screen.
*
* Receives an ASCII number over the serial port,
* terminated with a carriage return (ascii 13) then newline (10).
* Doesn't use the numeric value, but does parse it.
*
* This matches what Arduino's "Serial.println(val)" function
* puts out.
*
* Depends on the Ess sound library and 9 sounds in the
* data directory named "spooky01.wav" ... "spooky09.wav"
*
* Created 25 October 2006
* copyleft 2006 Tod E. Kurt
*/
import processing.serial.*;
import krister.Ess.*;
// Change this to the portname your Arduino board
String portname = "/dev/tty.usbserial-A3000Xv0"; // or "COM5"
Serial port;
String buf="";
int cr = 13; // ASCII return == 13
int lf = 10; // ASCII linefeed == 10
int num_sounds = 9;
AudioChannel myChannel[];
void setup() {
size(300,300);
frameRate(10);
smooth();
background(40,40,40);
noStroke();
port = new Serial(this, portname, 9600);
Ess.start(this); // start up Ess sound system
// load up sounds to play
myChannel = new AudioChannel[num_sounds];
for(int i=0; i< num_sounds; i++) {
myChannel[i] = new AudioChannel("spooky0"+i+".wav");
}
}
void draw() {
// all drawing is done in keyPressed or serialEvent
}
void keyPressed() {
if(key == ' ') {
background(40,40,40);
}
evileye();
}
// called whenever serial data arrives
void serialEvent(Serial p) {
int c = port.read();
if(c != lf && c != cr ) {
buf += char(c);
}
if( c == lf ) { // indicates end of an arduino println()
int val = int(buf); // we've got a value, let's use it
println("val="+val); // just print it out, not gonana use it
int x = int(random(0,width));
int y = int(random(0,height));
evileye();
buf = ""; // reset buf
}
}
void evileye() {
int r = int(random(num_sounds));
myChannel[r].play(1); // play a random sound
int x = int(random(0,300));
int y = int(random(0,300));
fill(240,0,0);
ellipse(x,y, 50,9);
fill(30,0,0);
ellipse(x,y, 8,8);
}
// we are done, clean up Ess
public void stop() {
Ess.stop();
super.stop();
}
