#include <Wire.h>


int state = HIGH;      // the current state of the output pin
int reading;           // the current reading from the input pin
int previous = LOW;    // the previous reading from the input pin
long time = 0;         // the last time the output pin was toggled
long debounce = 200;   // the debounce time, increase if the output flickers

int randomnumber = 0;

void setup()
{
  Wire.begin(); // join i2c bus (address optional for master)
  
  pinMode(13, OUTPUT);
}



void loop()
{
  
randomnumber = randomnumber++;
if (randomnumber==51) {
  randomnumber=0;
}
  
  
  
  reading = digitalRead(53);

  if (reading==1 && previous==0 && millis() - time > debounce) {
  
   
sendcom(11, randomnumber);

        
    time = millis();    
  }

  previous = reading;
  
  
  
  
  
 reading = digitalRead(51);

  if (reading==1 && previous==0 && millis() - time > debounce) {
  
   
sendfx(3, randomnumber);

        
    time = millis();    
  }

  previous = reading;






 reading = digitalRead(49);

  if (reading==1 && previous==0 && millis() - time > debounce) {
  
   
sendmusic(0, 2);

        
    time = millis();    
  }

  previous = reading;  
  
  
  
  
}

void sendfx (byte x, byte y) {
  
    Wire.beginTransmission(3); // transmit to device #3
 
  Wire.send(1);     // Sends On
  Wire.send(x);    // sends directory    
  Wire.send(y);    // sends file number
  Wire.endTransmission();    // stop transmitting

}

void sendcom (byte x, byte y) {
  
    Wire.beginTransmission(2); // transmit to device #2
 
  Wire.send(1);      // Sends On
  Wire.send(x);      // sends directory  
  Wire.send(y);      // sends file number
  Wire.endTransmission();    // stop transmitting

}

void sendmusic (byte x, byte y) {
  
    Wire.beginTransmission(1); // transmit to device #1
 
  Wire.send(1);        // Sends On
  Wire.send(x);        // sends directory
  Wire.send(y);        // sends file number
  Wire.endTransmission();    // stop transmitting

}