#include <MusicWithoutDelay.h>
#include <Wire.h>
#include <Adafruit_ADS1015.h>

Adafruit_ADS1115 adsa (0x48);
Adafruit_ADS1115 adsb (0x49);
Adafruit_ADS1115 adsc (0x4A);
Adafruit_ADS1115 adsd (0x4B);

const char note0[] PROGMEM = ":d=128,b=600,o=3:c+";
const char note1[] PROGMEM = ":d=128,b=600,o=3:d+";
const char note2[] PROGMEM = ":d=128,b=600,o=3:e+";
const char note3[] PROGMEM = ":d=128,b=600,o=3:g+";
const char note4[] PROGMEM = ":d=128,b=600,o=3:a+";
const char note5[] PROGMEM = ":d=128,b=600,o=4:c+";
const char note6[] PROGMEM = ":d=128,b=600,o=4:d+";
const char note7[] PROGMEM = ":d=128,b=600,o=4:e+";
const char note8[] PROGMEM = ":d=128,b=600,o=4:g+";
const char note9[] PROGMEM = ":d=128,b=600,o=4:a+";
const char note10[] PROGMEM = ":d=128,b=600,o=5:c+";
const char note11[] PROGMEM = ":d=128,b=600,o=5:d+";
const char note12[] PROGMEM = ":d=128,b=600,o=5:e+";
const char note13[] PROGMEM = ":d=128,b=600,o=5:g+";
const char note14[] PROGMEM = ":d=128,b=600,o=5:a+";
const char note15[] PROGMEM = ":d=128,b=600,o=6:c+";

MusicWithoutDelay Insta(note0);
MusicWithoutDelay Instb(note1);
MusicWithoutDelay Instc(note2);
MusicWithoutDelay Instd(note3);
MusicWithoutDelay Inste(note4);
MusicWithoutDelay Instf(note5);
MusicWithoutDelay Instg(note6);
MusicWithoutDelay Insth(note7);
MusicWithoutDelay Insti(note8);
MusicWithoutDelay Instj(note9);
MusicWithoutDelay Instk(note10);
MusicWithoutDelay Instl(note11);
MusicWithoutDelay Instm(note12);
MusicWithoutDelay Instn(note13);
MusicWithoutDelay Insto(note14);
MusicWithoutDelay Instp(note15);




int count;
int VA0, VA1, VA2, VA3, VA4, VA5, VA6, VA7, VA8, VA9, VA10, VA11, VA12, VA13, VA14, VA15;
int TH0, TH1, TH2, TH3, TH4, TH5, TH6, TH7, TH8, TH9, TH10, TH11, TH12, TH13, TH14, TH15;
int VOL0, VOL1, VOL2, VOL3, VOL4, VOL5, VOL6, VOL7, VOL8, VOL9, VOL10, VOL11, VOL12, VOL13, VOL14, VOL15;
bool CV;

int ZER;
int ONE;
int TWO;
int THR;
int FOU;
int FIV;
int SIX;
int SEV;
int EIG;
int NIN;
int TEN;
int ELE;
int TWE;
int THT;
int FOT;
int FIT;

void setup() {
    pinMode(20, INPUT);
    pinMode(17, INPUT);
    pinMode(0, OUTPUT);
    pinMode(1, OUTPUT);
    pinMode(2, OUTPUT);
    pinMode(4, OUTPUT);
    pinMode(5, OUTPUT);
    pinMode(6, OUTPUT);
    pinMode(7, OUTPUT);
    pinMode(8, OUTPUT);
    pinMode(9, OUTPUT);
    pinMode(10, OUTPUT);
    pinMode(11, OUTPUT);
    pinMode(12, OUTPUT);
    pinMode(13, OUTPUT);
    pinMode(14, OUTPUT);
    pinMode(15, OUTPUT);
    pinMode(16, OUTPUT);
        
 
    adsa.setGain(GAIN_ONE);
    adsb.setGain(GAIN_ONE); 
    adsc.setGain(GAIN_ONE); 
    adsd.setGain(GAIN_ONE); 

    adsa.begin();
    adsb.begin();
    adsc.begin();
    adsd.begin();

  calib();

  Insta.begin(CHA, TRIANGLE, ENVELOPE0, 0);
  Instb.begin(TRIANGLE, ENVELOPE0, 0);
  Instc.begin(TRIANGLE, ENVELOPE0, 0);
  Instd.begin(TRIANGLE, ENVELOPE0, 0);
  Inste.begin(TRIANGLE, ENVELOPE0, 0);
  Instf.begin(TRIANGLE, ENVELOPE0, 0);
  Instg.begin(TRIANGLE, ENVELOPE0, 0);
  Insth.begin(TRIANGLE, ENVELOPE0, 0);
  Insti.begin(TRIANGLE, ENVELOPE0, 0);
  Instj.begin(TRIANGLE, ENVELOPE0, 0);
  Instk.begin(TRIANGLE, ENVELOPE0, 0);
  Instl.begin(TRIANGLE, ENVELOPE0, 0);
  Instm.begin(TRIANGLE, ENVELOPE0, 0);
  Instn.begin(TRIANGLE, ENVELOPE0, 0);
  Insto.begin(TRIANGLE, ENVELOPE0, 0);
  Instp.begin(TRIANGLE, ENVELOPE0, 0);

  Insta.pause(true);
  Instb.pause(true);
  Instc.pause(true);
  Instd.pause(true);
  Inste.pause(true);
  Instf.pause(true);
  Instg.pause(true);
  Insth.pause(true);
  Insti.pause(true);
  Instj.pause(true);
  Instk.pause(true);
  Instl.pause(true);
  Instm.pause(true);
  Instn.pause(true);
  Insto.pause(true);
  Instp.pause(true);

}

void calib() {
  TH0 = (adsa.readADC_SingleEnded(0) + 800);
  TH1 = (adsa.readADC_SingleEnded(1) + 800);
  TH2 = (adsa.readADC_SingleEnded(2) + 800);
  TH3 = (adsa.readADC_SingleEnded(3) + 800);
  TH4 = (adsb.readADC_SingleEnded(0) + 800);
  TH5 = (adsb.readADC_SingleEnded(1) + 800);
  TH6 = (adsb.readADC_SingleEnded(2) + 800);
  TH7 = (adsb.readADC_SingleEnded(3) + 800);
  TH8 = (adsc.readADC_SingleEnded(0) + 800);
  TH9 = (adsc.readADC_SingleEnded(1) + 800);
  TH10 = (adsc.readADC_SingleEnded(2) + 800);
  TH11 = (adsc.readADC_SingleEnded(3) + 800);
  TH12 = (adsd.readADC_SingleEnded(0) + 800);
  TH13 = (adsd.readADC_SingleEnded(1) + 800);
  TH14 = (adsd.readADC_SingleEnded(2) + 800);
  TH15 = (adsd.readADC_SingleEnded(3) + 800);
  }

void loop() {
  bool curcv = digitalRead(17);
  Serial.println (curcv);
  count = 0;
  
  Insta.update();
  Instb.update();
  Instc.update();
  Instd.update();
  Inste.update();
  Instf.update();
  Instg.update();
  Insth.update();
  Insti.update();
  Instj.update();
  Instk.update();
  Instl.update();
  Instm.update();
  Instn.update();
  Insto.update();
  Instp.update();

  VA0 = adsa.readADC_SingleEnded(0);
  VA1 = adsa.readADC_SingleEnded(1);
  VA2 = adsa.readADC_SingleEnded(2);
  VA3 = adsa.readADC_SingleEnded(3);

  VA4 = adsb.readADC_SingleEnded(0);
  VA5 = adsb.readADC_SingleEnded(1);
  VA6 = adsb.readADC_SingleEnded(2);
  VA7 = adsb.readADC_SingleEnded(3);

  VA8 = adsc.readADC_SingleEnded(0);
  VA9 = adsc.readADC_SingleEnded(1);
  VA10 = adsc.readADC_SingleEnded(2);
  VA11 = adsc.readADC_SingleEnded(3);

  VA12 = adsd.readADC_SingleEnded(0);
  VA13 = adsd.readADC_SingleEnded(1);
  VA14 = adsd.readADC_SingleEnded(2);
  VA15 = adsd.readADC_SingleEnded(3);

  if (CV != curcv) {
    CV = curcv;

    if (CV) {
      digitalWrite(0, LOW);
      digitalWrite(1, LOW);
      digitalWrite(2, LOW); 
      digitalWrite(4, LOW);
      digitalWrite(5, LOW);
      digitalWrite(6, LOW);
      digitalWrite(7, LOW);
      digitalWrite(8, LOW);
      digitalWrite(9, LOW);
      digitalWrite(10, LOW);
      digitalWrite(11, LOW);
      digitalWrite(12, LOW);
      digitalWrite(13, LOW);
      digitalWrite(14, LOW);
      digitalWrite(15, LOW);
      digitalWrite(16, LOW);  
      
    } else {
      ZER = false;
      ONE = false;
      TWO = false;
      THR = false;
      FOU = false;
      FIV = false;
      SIX = false;
      SEV = false;
      EIG = false;
      NIN = false;
      TEN = false;
      ELE = false;
      TWE = false;
      THT = false;
      FOT = false;
      FIT = false;   
    }
  }
  if (!CV) {
    control();
  } else {
    audio();
  }
  
  if (digitalRead(20) == LOW) {
  calib();
  }
}

  void control() {
    
    if (VA0 > TH0) {
    digitalWrite(0, HIGH);
    }
    else{
    digitalWrite(0, LOW);
    }

    if (VA1 > TH1) {
    digitalWrite(1, HIGH);
    }
    else{
    digitalWrite(1, LOW);
    }

    if (VA2 > TH2) {
    digitalWrite(2, HIGH);
    }
    else {
    digitalWrite(2, LOW);
    }

    if (VA3 > TH3) {
    digitalWrite(4, HIGH);
    }
    else {
    digitalWrite(4, LOW);
    }

    if (VA4 > TH4) {
    digitalWrite(5, HIGH);
    }
    else {
    digitalWrite(5, LOW);
    }

    if (VA5 > TH5) {
    digitalWrite(7, HIGH);
    }
    else {
    digitalWrite(7, LOW);
    }

    if (VA6 > TH6) {
    digitalWrite(6, HIGH);
    }
    else {
    digitalWrite(6, LOW);
    }

    if (VA7 > TH7) {
    digitalWrite(8, HIGH);
    }
    else {
    digitalWrite(8, LOW);
    }

    if (VA8 > TH8) {
    digitalWrite(9, HIGH);
    }
    else {
    digitalWrite(9, LOW);
    }

    if (VA9 > TH9) {
    digitalWrite(10, HIGH);
    }
    else {
    digitalWrite(10, LOW);
    }

    if (VA10 > TH10) {
    digitalWrite(12, HIGH);
    }
    else {
    digitalWrite(12, LOW);
    }

    if (VA11 > TH11) {
    digitalWrite(11, HIGH);
    }
    else {
    digitalWrite(11, LOW);
    }

    if (VA12 > TH12) {
    digitalWrite(13, HIGH);
    }
    else {
    digitalWrite(13, LOW);
    }

    if (VA13 > TH13) {
    digitalWrite(14, HIGH);
    }
    else {
    digitalWrite(14, LOW);
    }

    if (VA14 > TH14) {
    digitalWrite(15, HIGH);
    }
    else {
    digitalWrite(15, LOW);
    }

    if (VA15 > TH15) {
    digitalWrite(16, HIGH);
    }
    else {
    digitalWrite(16, LOW);
    }    
  }

  
  void audio () {

    if (ZER = (VA0 > TH0)) count++;

    if (ONE = (VA1 > TH1)) count++;

    if (TWO = (VA2 > TH2)) count++;

    if (THR = (VA3 > TH3)) count++;

    if (FOU = (VA4 > TH4)) count++;

    if (FIV = (VA5 > TH5)) count++;

    if (SIX = (VA6 > TH6)) count++;

    if (SEV = (VA7 > TH7)) count++;

    if (EIG = (VA8 > TH8)) count++;

    if (NIN = (VA9 > TH9)) count++;

    if (TEN = (VA10 > TH10)) count++;

    if (ELE = (VA11 > TH11)) count++;

    if (TWE = (VA12 > TH12)) count++;

    if (THT = (VA13 > TH13)) count++;

    if (FOT = (VA14 > TH14)) count++;

    if (FIT = (VA15 > TH15)) count++;
 
    if (ZER) {
      VOL0 = 50/count+constrain(map(VA0, TH0, TH0+5000, 0, 65), 0, 65);
      Insta.play(true);
      Insta.setVolume(VOL0);
    }

    if (!ZER) {
      Insta.pause (true);
    }

    if (ONE) {
      VOL1 = 50/count+constrain(map(VA1, TH1, TH1+5000, 0, 65), 0, 65);
      Instb.play(true);
      Instb.setVolume(VOL1);
    }

    if (!ONE) {
      Instb.pause (true);
    }

    if (TWO) {
      VOL2 = 50/count+constrain(map(VA2, TH2, TH2+5000, 0, 65), 0, 65);
      Instc.play(true);
      Instc.setVolume(VOL2);
    }

    if (!TWO) {
     Instc.pause (true);
    }
  
    if (THR) {
      VOL3 = 50/count+constrain(map(VA3, TH3, TH3+5000, 0, 65), 0, 65);
      Instd.play(true);
      Instd.setVolume(VOL3);
    }

    if (!THR) {
      Instd.pause (true);
    }

    if (FOU) {
      VOL4 = 50/count+constrain(map(VA4, TH4, TH4+5000, 0, 65), 0, 65);
      Inste.play(true);
      Inste.setVolume(VOL4);
    }

    if (!FOU) {
      Inste.pause (true);
    }

    if (FIV) {
      VOL5 = 50/count+constrain(map(VA5, TH5, TH5+5000, 0, 65), 0, 65);
      Instf.play(true);
      Instf.setVolume(VOL5);
  }

    if (!FIV) {
      Instf.pause (true);
    }


    if (SIX) {
      VOL6 = 50/count+constrain(map(VA6, TH6, TH6+5000, 0, 65), 0, 65);
      Instg.play(true);
      Instg.setVolume(VOL6);
  }

    if (!SIX) {
      Instg.pause (true);
    }

    if (SEV) {
      VOL7 = 50/count+constrain(map(VA7, TH7, TH7+5000, 0, 65), 0, 65);
      Insth.play(true);
      Insth.setVolume(VOL7);
  }

    if (!SEV) {
      Insth.pause (true);
     }


    if (EIG) {
      VOL8 = 50/count+constrain(map(VA8, TH8, TH8+5000, 0, 65), 0, 65);
      Insti.play(true);
      Insti.setVolume(VOL8);
    }

    if (!EIG) {
      Insti.pause (true);
    }

    if (NIN) {
      VOL9 = 50/count+constrain(map(VA9, TH9, TH9+5000, 0, 65), 0, 65);
      Instj.play(true);
      Instj.setVolume(VOL9);
    }

    if (!NIN) {
      Instk.pause (true);
    }

    if (TEN) {
      VOL10 = 50/count+constrain(map(VA10, TH10, TH10+5000, 0, 65), 0, 65);
      Instk.play(true);
      Instk.setVolume(VOL10);
  }

    if (!TEN) {
      Instk.pause (true);
    }

    if (ELE) {
      VOL11 = 50/count+constrain(map(VA11, TH11, TH11+5000, 0, 65), 0, 65);
      Instl.play(true);
      Instl.setVolume(VOL11);
  }

    if (!ELE) {
      Instl.pause (true);
    }
  
    if (TWE) {
      VOL12 = 50/count+constrain(map(VA12, TH12, TH12+5000, 0, 65), 0, 65);
      Instm.play(true);
      Instm.setVolume(VOL12);

    }

    if (!TWE) {
      Instm.pause (true);
    }
    
    if (THT) {
      VOL13 = 50/count+constrain(map(VA13, TH13, TH13+5000, 0, 65), 0, 65);
      Instn.play(true);
      Instn.setVolume(VOL13);
    }

  if (!THT) {
    Instn.pause (true);
    }
      
    if (FOT) {
      VOL14 = 50/count+constrain(map(VA14, TH14, TH14+5000, 0, 65), 0, 65);
      Insto.play(true);
      Insto.setVolume(VOL14);
    }

    if (!FOT) {
      Insto.pause (true);
    }

        
    if (FIT) {
      VOL15 = 50/count+constrain(map(VA15, TH15, TH15+5000, 0, 65), 0, 65);
      Instp.play(true);
      Instp.setVolume(VOL15);
    }

    if (!FIT) {
      Instp.pause (true);
    }
  }