// Source: Asgn01.SpaceshipInterfaceII.ino
// Description: This program controls a series of LEDs using two switches. Each switch activates different LED patterns.
// Programmed by: Douglas Ferreira / January 28 2024

// Variable to store the state of switch connected to pin 2
int switchState1 = 0;

// Variable to store the state of switch connected to pin 1
int switchState2 = 0;

void setup() {
  // Setup function: Initializes the pins for LED outputs and switch inputs

  // Initialize LED output pins
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT); 
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);

  // Initialize switch input pins
  pinMode(2, INPUT); // Switch 1
  pinMode(1, INPUT); // Switch 2
}

void loop() {
  // Main loop: Continuously checks switch states and controls LEDs accordingly
  
  // Read the state of the switches
  switchState1 = digitalRead(2); // Read state of switch connected to pin 2
  switchState2 = digitalRead(1); // Read state of switch connected to pin 1
  
  // Check if Switch 1 is in the LOW state (not pressed)
  if (switchState1 == LOW) { 
    digitalWrite(3, HIGH); // Turn on LED connected to pin 3
    digitalWrite(4, LOW);  // Turn off LEDs connected to pins 4, 5, and 6
    digitalWrite(5, LOW);
    digitalWrite(6, LOW);
  }

  // Check if Switch 1 is HIGH (pressed) and Switch 2 is LOW (not pressed)
  if (switchState1 == HIGH && switchState2 == LOW) {
    digitalWrite(3, LOW); // Turn off LED connected to pin 3
    // Create a blinking pattern with LEDs connected to pins 4, 5, and 6
    digitalWrite(4, LOW);
    digitalWrite(6, HIGH);
    delay(250);
    digitalWrite(5, HIGH);
    delay(250);
    digitalWrite(4, HIGH);
    digitalWrite(5, LOW);
    digitalWrite(6, LOW);
    delay(250);
  }

  // Check if Switch 2 is HIGH (pressed) and Switch 1 is LOW (not pressed)
  if (switchState2 == HIGH && switchState1 == LOW) {
    // Turn all LEDs on and then off in a sequence
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
    digitalWrite(6, HIGH);
    digitalWrite(5, HIGH);
    delay(250);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
    digitalWrite(6, LOW);
    digitalWrite(5, LOW);
  }

  // Check if Switch 2 is HIGH (pressed) and Switch 1 is HIGH too
  if (switchState2 == HIGH && switchState1 == HIGH) {
    // make all LEDs blink together
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
    digitalWrite(5, HIGH);
    digitalWrite(6, HIGH);
    delay(500); // Keep LEDs on for half a second
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);
    digitalWrite(6, LOW);
    delay(500); // Keep LEDs off for half a second
  }

}