//reduced to 2 and added building lights
//3 arc welders for brass factory
/* was The McGrath case sketch modified for 3 welders */

int frontlight = 2; // front light
int backlight = 3; //back light
int nightlight = 5;
int welder1a = 7; // Welder 1
int welder1b = 8;
int welder2a = 9; // Welder 2
int welder2b = 10;
int togglePin = A2; // Toggle Pin

void setup() {
  pinMode(frontlight, OUTPUT);
  pinMode(backlight, OUTPUT);
  pinMode(nightlight, OUTPUT);
  pinMode(welder1a, OUTPUT);
  pinMode(welder1b, OUTPUT);
  pinMode(welder2a, OUTPUT);
  pinMode(welder2b, OUTPUT);
  digitalWrite(nightlight, HIGH);
  pinMode(togglePin, INPUT); // Set toggle pin as input
  randomSeed(analogRead(A7));
}

void loop() {
  // Check if toggle pin is high
  if (digitalRead(togglePin) == HIGH) {
    digitalWrite(frontlight, HIGH);
    delay(5000);
      digitalWrite(backlight, HIGH);
    delay(2000);
    byte randNum = random(0, 3);
    switch (randNum) {
      case 0:
        welder1();      
        welder2();
           welder1(); 
        break;
      case 1:
        welder2();
         welder2();
        break;    
    }
  }
  else {
  // Code to execute if the condition is false
    digitalWrite(backlight, LOW);
    delay(5000);
      digitalWrite(frontlight, LOW);
}
}

void welder1() {
  int i, count;
  count = random(10, 40); // selects a random number of flashes between 10 and 40 in each burst
  for (i = 0; i < count; i++) // applies the number of times through the loop
  {
    digitalWrite(welder1a, HIGH); //LED on
    delay (30);//wait 30mS
    digitalWrite(welder1b, HIGH);
    delay (30); //wait 30mS
    delay(random(30)); //wait 1 to 30mS
    digitalWrite(welder1a, LOW); // LED 0ff
    digitalWrite(welder1b, LOW);
    delay(random(200)); //wait up to 200ms between flashes
  }
  delay(random(2000, 5000)); // wait between 2 and 10 seconds between bursts
}

void welder2() {
  int i, count;
  count = random(10, 40); // selects a random number of flashes between 10 and 40 in each burst
  for (i = 0; i < count; i++) // applies the number of times through the loop
  {
    digitalWrite(welder2a, HIGH); //LED on
    delay (30);//wait 30mS
    digitalWrite(welder2b, HIGH);
    delay (30); //wait 30mS
    delay(random(30)); //wait 1 to 30mS
    digitalWrite(welder2a, LOW); // LED 0ff
    digitalWrite(welder2b, LOW);
    delay(random(200)); //wait up to 200ms between flashes
  }
  delay(random(1000, 7000)); // wait between 2 and 10 seconds between bursts
}