#define DATA_PIN  8  // Pin connected to DS of 74HC595
#define LATCH_PIN 9  // Pin connected to STCP of 74HC595
#define CLOCK_PIN 10 // Pin connected to SHCP of 74HC595

// How many of the shift registers
#define NUM_SHIFT_REGS 8
#define true HIGH
#define false LOW

const uint8_t numOfRegisterPins = NUM_SHIFT_REGS * 8;

bool registers[numOfRegisterPins];

void setup() {
  pinMode(DATA_PIN, OUTPUT);
  pinMode(CLOCK_PIN, OUTPUT);
  pinMode(LATCH_PIN, OUTPUT);
  clearRegisters();
  writeRegisters();
}

bool toggle = false;

void loop() {
  blinkInnerYellow();
  runInnerRed();
  blinkInnerGreenThrice();
  blinkSecondYellow();
  blinkSecondYellow();
  blinkSecondYellow();
  runOuterGreen();
  blinkLast();
  blinkLast();
  blinkLast();
}

void blinkInnerYellow() {
  write(0,HIGH);
  write(1,HIGH);
  write(2,HIGH);
  write(3,HIGH);
  write(4,HIGH);
  write(5,HIGH);
  write(6,HIGH);
  write(7,HIGH);
  delay(300);
  write(0,LOW);
  write(1,LOW);
  write(2,LOW);
  write(3,LOW);
  write(4,LOW);
  write(5,LOW);
  write(6,LOW);
  write(7,LOW);
  delay(300);
}

void runInnerRed(){
  write(8,HIGH);
  delay(200);
  write(8,LOW);
  write(9,HIGH);  
  delay(200);
  write(9,LOW);
  write(10,HIGH);
  delay(200);
  write(10,LOW);
  write(11,HIGH);
  delay(200);
  write(11,LOW);
  write(12,HIGH);
  delay(200);
  write(12,LOW);
  write(13,HIGH);
  delay(200);
  write(13,LOW);
  write(14,HIGH);
  delay(200);
  write(14,LOW);
  write(15,HIGH);
  delay(200);
  write(15,LOW);
}

void  blinkInnerGreenThrice(){
  write(16,HIGH);
  write(17,HIGH);
  write(18,HIGH);
  write(19,HIGH);
  delay(200);
  write(16,LOW);
  write(17,LOW);
  write(18,LOW);
  write(19,LOW);
  delay(200);
  write(16,HIGH);
  write(17,HIGH);
  write(18,HIGH);
  write(19,HIGH);
  delay(200);
  write(16,LOW);
  write(17,LOW);
  write(18,LOW);
  write(19,LOW);
  delay(200);
  write(16,HIGH);
  write(17,HIGH);
  write(18,HIGH);
  write(19,HIGH);
  delay(200);
  write(16,LOW);
  write(17,LOW);
  write(18,LOW);
  write(19,LOW);
  delay(200);
}

void blinkSecondYellow() {
  write(20,HIGH);
  write(21,HIGH);
  write(22,HIGH);
  write(23,HIGH);
  write(24,HIGH);
  write(26,HIGH);
  write(27,HIGH);
  write(28,HIGH);
  write(29,HIGH);
  delay(500);
  write(20,LOW);
  write(21,LOW);
  write(22,LOW);
  write(23,LOW);
  write(24,LOW);
  write(26,LOW);
  write(27,LOW);
  write(28,LOW);
  write(29,LOW);
  delay(500);
}

void runOuterGreen(){
  write(32,HIGH);
  delay(200);
  write(32,LOW);
  write(33,HIGH);
  delay(200);
  write(33,LOW);
  write(34,HIGH);
  delay(200);
  write(34,LOW);
  write(35,HIGH);
  delay(200);
  write(35,LOW);
  write(32,HIGH);
  delay(200);
  write(32,LOW);
  write(33,HIGH);
  delay(200);
  write(33,LOW);
  write(34,HIGH);
  delay(200);
  write(34,LOW);
  write(35,HIGH);
  delay(200);
  write(35,LOW);
  write(32,HIGH);
  delay(200);
  write(32,LOW);
  write(33,HIGH);
  delay(200);
  write(33,LOW);
  write(34,HIGH);
  delay(200);
  write(34,LOW);
  write(35,HIGH);
  delay(200);
  write(35,LOW);
}

void blinkLast(){
  write(25,HIGH);
  write(36,HIGH);
  write(37,HIGH);
  write(38,HIGH);
  write(39,HIGH);
  write(40,HIGH);
  write(41,HIGH);
  write(42,HIGH);
  write(43,HIGH);
  write(44,HIGH);
  write(45,HIGH);
  write(46,HIGH);
  write(47,HIGH);
  write(48,HIGH);
  write(49,HIGH);
  write(50,HIGH);
  delay(300);
  write(25,LOW);
  write(36,LOW);
  write(37,LOW);
  write(38,LOW);
  write(39,LOW);
  write(40,LOW);
  write(41,LOW);
  write(42,LOW);
  write(43,LOW);
  write(44,LOW);
  write(45,LOW);
  write(46,LOW);
  write(47,LOW);
  write(48,LOW);
  write(49,LOW);
  write(50,LOW);
  delay(300);
}

void clearRegisters() {
  // Reset all register pins
  for (int i = numOfRegisterPins; i >= 0; i--) {
    registers[i] = LOW;
  }
}

void setRegisterPin(int index, int value) {
  // Set an individual pin HIGH or LOW
  registers[index] = value;
}

void writeRegisters() {
  // Set and display registers
  digitalWrite(LATCH_PIN, LOW);

  for (int i = numOfRegisterPins; i >= 0; i--) {
    digitalWrite(CLOCK_PIN, LOW);
    digitalWrite(DATA_PIN, registers[i]);
    digitalWrite(CLOCK_PIN, HIGH);
  }

  digitalWrite(LATCH_PIN, HIGH);
}

void write(int pinNumber, bool mode)
{
  registers[pinNumber] = mode;
  writeRegisters();
}