Dear users of Processing.org.
I'm an artist trying to learn and understand processing.org.

I'm new to this kind of programming and so far the only way I get by is by copy/paste code...


I am working on an installation that I want to display a 'water ripple' depending on what part of a surface is pening touched.
For the setup i have a canvas with five piezo microphones attached to it.

I got a Arduino code from Sylvain and Alex from Dorkbot I want to use in this project:

/* Multi-Knock Sensor
* based on
* http://www.arduino.cc/en/Tutorial/Knock
*/

#define SENSORS 3

int ledPin = 13;      // led connected to control pin 13
int knockSensor = 0;  // the knock sensor will be plugged at analog pin 0
int val = 0;         // variable to store the value read from the sensor pin
int statePin = LOW;   // variable used to store the last LED status, totoggle the light
int THRESHOLD = 250;  // threshold value to decide when the detected soundis a knock or not
int triggered = 0;
int state[SENSORS];
int loopCount;
int lastHit;
void resetState(void) {
 int i;
 for (i=0; i < SENSORS; ++i) {
   state[i] = -1;
 }
 triggered = 0;
}

void setup() {
 lastHit = 0;
 resetState();
 pinMode(ledPin, OUTPUT); // declare the ledPin as as OUTPUT
 Serial.begin(9600);       // use the serial port
}

void loop() {
 int sensor;
 int hits = 0;
 if (lastHit == 0) {
   for (sensor = 0; sensor < SENSORS; ++sensor) {
     if (state[sensor] != -1) {
       hits++;
     }
     else {
       int val = analogRead(sensor);
       if (val >= THRESHOLD) {
         if(!triggered) {
           triggered = 1;
           loopCount = 0;
         }
         state[sensor] = loopCount;
         hits++;
       }
     }
   }
   if (hits == SENSORS) {
     for (sensor = 0; sensor < SENSORS; ++sensor) {
       Serial.print("sensor ");
       Serial.println(sensor+1);
       Serial.print(" ");
       Serial.println((int) state[sensor]);
       lastHit = 64;
     }
     resetState();
   }
   if (hits > 0) {
     loopCount++;
     if (loopCount > 64) {
       resetState();
     }
   }
 }
 if (lastHit > 0) {
   lastHit--;
 }
}



Now, what I need help with is to show a ripple effect on a given X/Y cordinate on the screen depending on which microphone has the highest signal.

I am supposed to show a mock up model of this by tuesday so help is very much appritiated.


Cheers

Hi all. I'm willing to pay someone for help on this project since i'm totally stuck.