/* Button Led code 
 * Objective light up the buttons in the sequnece and actual elevator would move 
 * last edit done by oumer at 3:31 on 18/04/2024  
if any changes note up here 
*/


// constants won't change. They're used here to set pin numbers:
const int yellow_but = 2;  // the number of the pushbutton pin
const int yellow_led = 13;    // the number of the LED pin
const int green_but = 3;  // the number of the pushbutton pin
const int green_led = 11;    // the number of the LED pin
const int blue_but = 4;  // the number of the pushbutton pin
const int blue_led = 12;    // the number of the LED pin
const int red_but = 5;  // the number of the pushbutton pin
const int red_led = 10;    // the number of the LED pin

// intilzing the variables that  will change later :
int y_buttonState = 0;  // variable for reading the pushbutton status
int g_buttonState = 0;  // variable for reading the pushbutton status
int b_buttonState = 0;  // variable for reading the pushbutton status
int r_buttonState = 0;  // variable for reading the pushbutton status

void setup() {
  // initialize the LED pin as an output:
  pinMode(yellow_led, OUTPUT);
  pinMode(blue_led, OUTPUT);
  pinMode(green_led, OUTPUT);
  pinMode(red_led, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(yellow_but , INPUT);
  pinMode(green_but , INPUT);
  pinMode(blue_but , INPUT);
  pinMode(red_but , INPUT);
}

void loop() {
  // read the state of the pushbutton value:
  y_buttonState = digitalRead(yellow_but);// equivalent on scanf but reads button input 
  g_buttonState = digitalRead(green_but);
  b_buttonState = digitalRead(blue_but);
  r_buttonState = digitalRead(red_but);

//Yellow LED
  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (y_buttonState == HIGH) {
    // turn LED on:
    digitalWrite(yellow_led, HIGH);
    delay(2000);// time delay that keeps the light on for 2 sec
  } else {
    // turn LED off:
    digitalWrite(yellow_led, LOW);
  }

// Green LED
  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (g_buttonState == HIGH) {
    // turn LED on:
    digitalWrite(green_led, HIGH);
    delay(2000);// time delay that keeps the light on for 2 sec
  } else {
    // turn LED off:
    digitalWrite(green_led, LOW);
  }

  //Blue LED
  // if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (b_buttonState == HIGH) {
    // turn LED on:
    digitalWrite(blue_led, HIGH);
    delay(2000);// time delay that keeps the light on for 2 sec
  } else {
    // turn LED off:
    digitalWrite(blue_led, LOW);
  } 

  //Red LED
  // check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (r_buttonState == HIGH) {
    // turn LED on:
    digitalWrite(red_led, HIGH);
    delay(2000);// time delay that keeps the light on for 2 sec
  } else {
    // turn LED off:
    digitalWrite(red_led, LOW);
  }
}