#include <FastLED.h>
#include "timers.h"

#define NUM_BUTTONS 10
#define NUM_TRACKS 4

//Global buttons variables
const uint8_t button[NUM_BUTTONS] {11, 10, 9, 8, 7, 6, 5, 4, 3, 2};
bool state[NUM_BUTTONS] {LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW, LOW};
bool oldState[NUM_BUTTONS] {HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH, HIGH};
uint8_t cont[NUM_BUTTONS] {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
bool pressed[NUM_BUTTONS] {false, false, false, false, false, false, false, false, false, false};
bool isRecording = false;
bool isOverdubbing = false;

//Only for traks
bool trackRecorded[NUM_TRACKS] {false, false, false, false};
bool anyTrackSelected = false; 
uint8_t lastPressed = 0; 


/*
  LEDS VARIABLES
*/
#define NUM_LEDS 6
#define NUM_RING 16
#define PIN_LEDS 12
#define PIN_RING 13
#define TYPE_LEDS WS2812
#define TYPE_RING WS2812

CRGB leds[NUM_LEDS];
CRGB ring[NUM_RING];

uint8_t ringUpdate = 0;
uint8_t lightsMode = 0;




void setup(){
  lightsDebug();
    for (uint8_t i=0; i<NUM_BUTTONS; i++){
    pinMode(button[i], INPUT_PULLUP);
  }
}


void loop(){
  buttonMode();
  track_1();
  track_2();
  track_3();
  track_4();
  play_Rec();
  setTracksColors();
  setRingColors();
}

//All leds turn off 
void lightsDebug(){
  FastLED.addLeds<TYPE_RING, PIN_RING, GRB>(ring, NUM_RING).setCorrection(TypicalLEDStrip);
  FastLED.addLeds<TYPE_LEDS, PIN_LEDS, GRB>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  fill_solid (ring, NUM_RING, CRGB::Black);
  fill_solid (leds, NUM_LEDS, CRGB::Black);
  FastLED.show();
}

void buttonMode(){
  state[3] = digitalRead(button[3]);
  
  if ((state[3] == LOW) && (oldState[3] == HIGH)) {
    if (buttonsTimer(50)){
      state[3] = digitalRead(button[3]);
      pressed[3] = true;
        if (++cont[3] > 2) cont[3] = 1;
    }
  }
  oldState[3] = state[3];
}

void track_1(){
  state[4] = digitalRead(button[4]);
  
  if ((state[4] == LOW) && (oldState[4] == HIGH)){
    if (buttonsTimer(50)){
      state[4] = digitalRead(button[4]);
      
      pressed[4] = true;
      anyTrackSelected = true;
      lastPressed = 1;
    }
      //If track 1 is selected and mode is not selected others tracks reset 
      if ((cont[3] == 0) && (pressed[4] == true)){
        pressed[4] = true;
        pressed[5] = false;
        pressed[6] = false;
        pressed[7] = false;
      }
      //If mode button is selected just select track 1
      if ((cont[3] >= 1) && (pressed[4] == true)){
        pressed[4] = true;
      }
  }
  oldState[4] = state[4];
}


void track_2(){
  state[5] = digitalRead(button[5]);
  
  if ((state[5] == LOW) && (oldState[5] == HIGH)){
    if (buttonsTimer(50)){
      state[5] = digitalRead(button[5]);
      
      pressed[5] = true;
      anyTrackSelected = true;
      lastPressed = 2;
    }
      //If track 2 is selected and mode is not selected others tracks reset 
      if ((cont[3] == 0) && (pressed[5] == true)){
        pressed[4] = false;
        pressed[5] = true;
        pressed[6] = false;
        pressed[7] = false;
      }
      //If mode button is selected just select track 2
      if ((cont[3] >= 1) && (pressed[5] == true)){
        pressed[5] = true;
      }
  }
  oldState[5] = state[5];
}


void track_3(){
  state[6] = digitalRead(button[6]);
  
  if ((state[6] == LOW) && (oldState[6] == HIGH)){
    if (buttonsTimer(50)){
      state[6] = digitalRead(button[6]);
      
      pressed[6] = true;
      anyTrackSelected = true;
      lastPressed = 3;
    }
      //If track 3 is selected and mode is not selected others tracks reset
      if ((cont[3] == 0) && (pressed[6] == true)){
        pressed[4] = false;
        pressed[5] = false;
        pressed[6] = true;
        pressed[7] = false;
      }
      //If mode button is selected just select track 3
      if ((cont[3] >= 1) && (pressed[6] == true)){
        pressed[6] = true;
      }
  }
  oldState[6] = state[6];
}


void track_4(){
  state[7] = digitalRead(button[7]);
  
  if ((state[7] == LOW) && oldState[7] == HIGH){
    if (buttonsTimer(50)){
      state[7] = digitalRead(button[7]);
      
      pressed[7] = true;
      anyTrackSelected = true; 
      lastPressed = 4; 
    }
      //If track 4 is selected and mode is not selected others tracks reset
      if ((cont[3] == 0) && (pressed[7] == true)){
        pressed[4] = false;
        pressed[5] = false;
        pressed[6] = false;
        pressed[7] = true;
      }
      //If mode button is selected just select track 4
      if ((cont[3] >= 1) && (pressed[7] == true)){
        pressed[7] = true;
      }
  }
  oldState[7] = state[7];
}

void play_Rec() {
  static uint8_t cases = 0;

    if ((pressed[3]==true) && (cont[3]==1)){
      switch (cases) {
        
        default:
        ringUpdate = 1;
        break;

        case 1: 
        ringUpdate = 3;
        break;

        case 2:
        ringUpdate = 4;
        break;
      }
    }
    
    if ((pressed[3]==true) && (cont[3]==2)){
      switch (cases) {

        default:
        ringUpdate = 2;
        break;
      }
    }

    if ((pressed[3]==true) && (anyTrackSelected)) {
      state[0] = digitalRead(button[0]);

      if ((state[0]==LOW) && (oldState[0]==HIGH)){
        if (buttonsTimer(50)) {
          state[0] = digitalRead(button[0]);
          pressed[0] = true;

          if(lastPressed==1){
            if(trackRecorded[0]==false){
              Serial.println("Registro per la prima volta la traccia numero 1");
              cases = 1;
              isRecording = true;
              isOverdubbing = false;
            }
            if(trackRecorded[0]==true){
              if(++cont[0]>2) {cont[0] = 1;}
              
                switch (cont[0]){
                  
                  case 1:
                  Serial.println("Overdub sulla traccia numero 1");
                  cases = 2;
                  isRecording = false;
                  isOverdubbing = true;
                  break;

                  case 2:
                  Serial.println("Fine overdub sulla traccia numero 1");
                  cases = 0;
                  isRecording = false;
                  isOverdubbing = false;
                  break;
                }
            }
            trackRecorded[0] = true;
          }

          if(lastPressed==2){
            if(trackRecorded[1]==false){
              Serial.println("Registro per la prima volta la traccia numero 2");
              cases = 1;
              isRecording = true;
              isOverdubbing = false;
            }
            if(trackRecorded[1]==true){
              if(++cont[0]>2) {cont[0] = 1;}
              
                switch (cont[0]){
                  
                  case 1:
                  Serial.println("Overdub sulla traccia numero 2");
                  cases = 2;
                  isRecording = false;
                  isOverdubbing = true;
                  break;

                  case 2:
                  Serial.println("Fine overdub sulla traccia numero 2");
                  cases = 0;
                  isRecording = false;
                  isOverdubbing = false;
                  break;
                }
            }
            trackRecorded[1] = true;
          }

          if(lastPressed==3){
            if(trackRecorded[2]==false){
              Serial.println("Registro per la prima volta la traccia numero 3");
              cases = 1;
              isRecording = true;
              isOverdubbing = false;
            }
            if(trackRecorded[2]==true){
              if(++cont[0]>2) {cont[0] = 1;}
              
                switch (cont[0]){
                  
                  case 1:
                  Serial.println("Overdub sulla traccia numero 3");
                  cases = 2;
                  isRecording = false;
                  isOverdubbing = true;
                  break;

                  case 2:
                  Serial.println("Fine overdub sulla traccia numero 3");
                  cases = 0;
                  isRecording = false;
                  isOverdubbing = false;
                  break;
                }
            }
            trackRecorded[2] = true;
          }

          if(lastPressed==4){
            if(trackRecorded[3]==false){
              Serial.println("Registro per la prima volta la traccia numero 4");
              cases = 1;
              isRecording = true;
              isOverdubbing = false;
            }
            if(trackRecorded[3]==true){
              if(++cont[0]>2) {cont[0] = 1;}
              
                switch (cont[0]){
                  
                  case 1:
                  Serial.println("Overdub sulla traccia numero 4");
                  cases = 2;
                  isRecording = false;
                  isOverdubbing = true;
                  break;

                  case 2:
                  Serial.println("Fine overdub sulla traccia numero 4");
                  cases = 0;
                  isRecording = false;
                  isOverdubbing = true;
                  break;
                }
            }
            trackRecorded[3] = true;
          }
        }
      }
    }
  oldState[0] = state[0];
}



//Ring circle scene
void ringCircle(uint32_t color){
  static uint8_t position = 0;
    
    if (ringTimer(60)){
      position++;
    }
    if (position >= NUM_RING){
      position = 0;
    }
    
    for (int i=0; i<NUM_RING; i++){
      fadeToBlackBy(ring, NUM_RING, 2);   // From 1 to 10 it set the trail
        ring[position] += color;
        FastLED.show();
    }
}

//Ring static scene
void ringStatic(uint32_t color){
  fill_solid (ring, NUM_RING, color);
  FastLED.show();
}

//Setting ring colors
void setRingColors(){
  switch (ringUpdate){
    
    default:
    ringStatic(CRGB::White);
    break;
    
    case 1:
    ringStatic(CRGB::Red);
    lightsMode = 1;
    break;
    
    case 2:
    ringCircle(CRGB::Green);
    lightsMode = 2;
    break;
    
    case 3:
    ringCircle(CRGB::Red);
    lightsMode = 3;
    break;

    case 4:
    ringCircle(CRGB::DarkOrange);
    lightsMode = 4;
    break;
  }
}


void tracksStatic(uint32_t track_1_color, uint32_t track_2_color, uint32_t track_3_color, uint32_t track_4_color){
  leds[0] = track_1_color;
  leds[1] = track_2_color;
  leds[2] = track_3_color;
  leds[3] = track_4_color;
  FastLED.show();
}


void tracksBlink(uint8_t ledToBlink, uint32_t ledColor){
  static bool blinkState = false;

  if(ledsTimer(800)){
    blinkState = !blinkState;
  }
  if(blinkState==true){
    leds[ledToBlink] = ledColor;
  }
  if(blinkState==false){
    leds[ledToBlink] = CRGB::Black;
  }
}

void setTracksColors(){
  
  //DEFAULT
  if (cont[3] == 0){
    if (lastPressed == 0){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Black, CRGB::Black);
      FastLED.show();
    }
    if (lastPressed == 1){
      tracksStatic (CRGB::White, CRGB::Black, CRGB::Black, CRGB::Black);
      FastLED.show();
    }
    if (lastPressed == 2){
      tracksStatic (CRGB::Black, CRGB::White, CRGB::Black, CRGB::Black);
      FastLED.show();
    }
    if (lastPressed == 3){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::White, CRGB::Black);
      FastLED.show();
    }
    if (lastPressed == 4){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Black, CRGB::White);
      FastLED.show();
    }
  }
  //Tracks Selected in REC mode
  if ((cont[3] == 1) && (isRecording == false) && (isOverdubbing == false)){
    
    //TRACK 1 SELECTED FIRST REC
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Green, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Green, CRGB::Green);
    }
    //TRACK 1 SELECTED OVERDUB
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::DarkOrange, CRGB::Black, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::DarkOrange, CRGB::Green, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::DarkOrange, CRGB::Black, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::DarkOrange, CRGB::Black, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::DarkOrange, CRGB::Black, CRGB::Green, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::DarkOrange, CRGB::Green, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::DarkOrange, CRGB::Green, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::DarkOrange, CRGB::Green, CRGB::Green, CRGB::Green);
    }

    //TRACK 2 SELECTED FIRST REC
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Red, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Red, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Red, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Red, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Red, CRGB::Green, CRGB::Green);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Red, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Red, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Red, CRGB::Green, CRGB::Green);
    }
    //TRACK 2 SELECTED OVERDUB
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::DarkOrange, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::DarkOrange, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::DarkOrange, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::DarkOrange, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::DarkOrange, CRGB::Green, CRGB::Green);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::DarkOrange, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::DarkOrange, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 2) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::DarkOrange, CRGB::Green, CRGB::Green);
    }

    //TRACK 3 SELECTED FIRST REC 
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Red, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::Red, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::Red, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Red, CRGB::Green);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::Red, CRGB::Green);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::Red, CRGB::Green);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::Red, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::Red, CRGB::Green);
    }
    //TRACK 3 SELECTED OVERDUB
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::DarkOrange, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::DarkOrange, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::DarkOrange, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::DarkOrange, CRGB::Green);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::DarkOrange, CRGB::Green);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::DarkOrange, CRGB::Green);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::DarkOrange, CRGB::Black);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::DarkOrange, CRGB::Green);
    }

    //TRACK 4 SELECTED BEFORE FIRST REC
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Black, CRGB::Red);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::Black, CRGB::Red);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::Black, CRGB::Red);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Green, CRGB::Red);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::Green, CRGB::Red);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::Green, CRGB::Red);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::Black, CRGB::Red);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::Green, CRGB::Red);
    }
    //TRACK 4 SELECTED OVERDUB
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Black, CRGB::DarkOrange);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::Black, CRGB::DarkOrange);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::Black, CRGB::DarkOrange);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Black, CRGB::Green, CRGB::DarkOrange);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == false) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Black, CRGB::Green, CRGB::Green, CRGB::DarkOrange);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Black, CRGB::Green, CRGB::DarkOrange);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::Black, CRGB::DarkOrange);
    }
    if ((lastPressed == 3) && (trackRecorded[0] == true) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Green, CRGB::Green, CRGB::Green, CRGB::DarkOrange);
    }
  }

  if ((cont[3] == 1) && (isRecording == true) && (isOverdubbing == false)) {

    //TRACK 1 IS RECORDING
    if ((lastPressed == 1) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Black, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[1] == false) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[1] == false) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Black, CRGB::Green, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[1] == true) && (trackRecorded[2] == false) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Black, CRGB::Green);
    }
    if ((lastPressed == 1) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == false)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Green, CRGB::Black);
    }
    if ((lastPressed == 1) && (trackRecorded[1] == true) && (trackRecorded[2] == true) && (trackRecorded[3] == true)){
      tracksStatic (CRGB::Red, CRGB::Green, CRGB::Green, CRGB::Green);
  }
}
}









/*

  @LIGHTS PINS: 
  Pin 13 - Neopixel ring (leds of ring from 0 to 15) 
  Pin 12 - Neopixel leds (leds from 0 to 5)
          - Led 0 = Track 1;
          - Led 1 = Track 2;
          - Led 2 = Track 3;
          - Led 3 = Track 4;
          - Led 4 = Bank;
          - Led 5 = Clear;
          
  @BUTTONS PINS:                       @Variables for buttons:
  Pin 11 - Play/Rec button;     |       button[0], state[0], oldState[0], cont[0], pressed[0];
  Pin 10 - Stop button;         |       button[1], state[1], oldState[1], cont[1], pressed[1];
  Pin 9  - Undo button;         |       button[2], state[2], oldState[2], cont[2], pressed[2];
  Pin 8  - Mode button;         |       button[3], state[3], oldState[3], cont[3], pressed[3];
  Pin 7  - Track 1 button;      |       button[4], state[4], oldState[4], cont[4], pressed[4], lastPressed(=1), trackRecorded[0] |
  Pin 6  - Track 2 button;      |       button[5], state[5], oldState[5], cont[5], pressed[5], lastPressed(=2), trackRecorded[1] | oneTrackSelected;
  Pin 5  - Track 3 button;      |       button[6], state[6], oldState[6], cont[6], pressed[6], lastPressed(=3), trackRecorded[2] | 
  Pin 4  - Track 4 button;      |       button[7], state[7], oldState[7], cont[7], pressed[7], lastPressed(=4); trackRecorded[3] |
  Pin 3  - Bank button;         |       button[8], state[8], oldState[8], cont[8], pressed[8];
  Pin 2  - Clear button;        |       button[9], state[9], oldState[9], cont[9], pressed[9];
  
*/