#include "pitches.h"

const int xpin = A3;                  // x-axis of the accelerometer
const int ypin = A2;                  // y-axis
const int zpin = A1;                  // z-axis (only on 3-axis models)

int x = 0;
int y = 0;
int z = 0;

int lastx = 0;
int lasty = 0;
int lastz = 0;

int diffx = 0;
int diffy = 0;
int diffz = 0;

int piezo_pin = 11;

int flag = 0;

int limit = 20;

int total = 0;

void setup()
{
  Serial.begin(9600);
  //tone(piezo_pin, NOTE_C4, 80);
  //delay(100);
  //tone(piezo_pin, NOTE_G3, 80);
}


void loop()
{

  if(flag == 0) {

  }

  if(flag == 1) {
    tone(piezo_pin, NOTE_C4);
  }
  if(flag == 0) {
    noTone(piezo_pin);
  }

  x = analogRead(xpin);
  diffx = abs(x - lastx);
  Serial.print(diffx);
  lastx = x;

  Serial.print("\t");

  //if(diffx > limit) { xalarm(); }

  y = analogRead(ypin);
  diffy = abs(y - lasty);
  Serial.print(diffy);
  lasty = y;

  Serial.print("\t");

  //if(diffy > limit) { yalarm(); }

  z = analogRead(zpin);
  diffz = abs(z - lastz);
  Serial.print(diffz);
  lastz = z;

  Serial.print("\t");


  //if(diffz > limit) { zalarm(); }

  total = diffx + diffy + diffz;

  Serial.print("t: ");

  Serial.print(total);

  Serial.println();

  if(total > limit) {
    flag = 1;
  }

  else {
    flag = 0;
  }

  delay(100);

}