//31 Hz to 65535 Hz
#include <MusicBuzzer.h>
#include <pitches.h>
const int BUZZER_PIN = 8; // declaring the Buzzer pin

const int trigPin = 10;
const int echoPin = 9;
const int adjustPin = A0;

long duration, defautltTriggerDistance;
int distanceCm, distanceInch;
boolean play = false;
const int buttonTones[] = {
  NOTE_C4, NOTE_D4, NOTE_E4, NOTE_F4,
  NOTE_G4, NOTE_A4, NOTE_B4, NOTE_C5
};

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  //Serial.begin(115200);
  pinMode(BUZZER_PIN, OUTPUT); //addigning pin to Output mode
  music.init(BUZZER_PIN);
  pinMode(trigPin, OUTPUT);
  digitalWrite(trigPin,LOW);
  delayMicroseconds(2);
  pinMode(echoPin, INPUT);
  delay(6000);
  defautltTriggerDistance = 24;
}

void loop() {
  ExamineSensor();
  
}

void RunBuzzerSound(){
  // put your main code here, to run repeatedly:
  tone(BUZZER_PIN, 4000); // Send 1KHz sound signal...
  delay(1000); //pause...for 1 sec
  noTone(BUZZER_PIN); //// Stop sound...
  //delay(1000); //// ...for 1sec
  tone(BUZZER_PIN, 1000); // Send 1KHz sound signal...
  delay(1000); //pause...for 1 sec
  noTone(BUZZER_PIN); //// Stop sound...
  delay(100); //// ...for 1ms
}

void RunSiren()
{
   tone(BUZZER_PIN, buttonTones[6]);
    delay(1000); //pause...for 1 sec
  noTone(BUZZER_PIN); //// Stop sound...
   tone(BUZZER_PIN, buttonTones[0]);
    delay(1000); //pause...for 1 sec
  noTone(BUZZER_PIN); //// Stop sound...
   delay(100);
}

void RunSiren2()
{
   tone(BUZZER_PIN, buttonTones[6],1000);
    //delay(10000); //pause...for 1 sec
   tone(BUZZER_PIN, buttonTones[0],1000);
    //delay(10000); //pause...for 1 sec
  noTone(BUZZER_PIN); //// Stop sound...
   delay(100);
}

void RunMusicSound()
{
  music.takeonme(); //YOU'VE BEEN RICK ROLLED
  delay(2000);
  
}

void ExamineSensor()
{
     int sensorValue = 0; 
   sensorValue = analogRead(A0);
   long triggerDist = map(sensorValue,0,1024,0,60); // max distance that will trigger alarm (1 to tiggerDist will sound alarm)
   long activeTriggerDist = defautltTriggerDistance;
   bool alarmTriggered = false;
   if(defautltTriggerDistance != triggerDist)
   {
    activeTriggerDist = triggerDist;

   }
  
  digitalWrite(trigPin, HIGH);//Take ultrasonic Measurement
  delayMicroseconds(10); //
  digitalWrite(trigPin, LOW);//
  duration = pulseIn(echoPin, HIGH);   //Read ultrasonic result
  distanceInch = duration * 0.0133 / 2; //sensor distance from object in inches
  String stringDistanceInch = (String) distanceInch;
  String stringtriggerDist = (String) activeTriggerDist;
   Serial.println("Current Distance (Inches): " + stringDistanceInch);
   Serial.println("Trigger Distance (Inches): " + stringtriggerDist);
  if (distanceInch < activeTriggerDist && distanceInch > 0) {
      //RunMusicSound();
      int ranSound = 0;

      while(ranSound < 4)
      {
      RunSiren();
     alarmTriggered = true;
     ranSound++;
     delay(500);
      }

  }
  Serial.println("Alarm Triggered: " + (String) alarmTriggered);

    if(alarmTriggered)
  {
    delay(60000); //wait 1 min
  }
  else{
    delay(1000); //wait 1 sec
  }
}