#include <Servo.h>

/* ayoub naoui
14-Feb-2024
Arduino Midterm  Exercises

/*Task 1 back and forth Led tracer
  while button A is presseed each led must blink twice in the follwoing sequence: green, red, blue, orange
  and then each led must blink twice in reverse order*/

//Task 2
//Excercise 2: random led blinker while button B is presed continously and randomly select an Led and blink it twice
//generate a random number between 5 and 11

//Task 3
//3 Excerise 3: Servo oscillator while button C is pressed incrementally rotate the servo back and froth between 20 and 120 degrees, momentarily stopiing at every single intermediate position for 8ms


//Task 4
//excersice 4 Synchronized Dance
  //while Button D is pressed alternate between the followoign three states
  //1.Move the servo to 30degrees and blink blue LED twice
  //2.Move the servo to 90degrees and blink the green LED twice
  //3.Move the servo to 120degrees and  alternately blink the orange and red led twice (orange BLINK -> RED BLINK -> Orange bink->red blink)

int position = 0; 
int count = 0;
Servo myservo;
String UniqueComment = ">Nakul Is the Best";

void setup() {
  // put your setup code here, to run once:

  //designate all LED pins
  pinMode(5, OUTPUT); //amber led
  pinMode(6, OUTPUT); //blue led
  pinMode(9, OUTPUT); //red led
  pinMode(10, OUTPUT); //green led

  //designate all push button pins
  pinMode(2, INPUT); //push button a (red)
  pinMode(12, INPUT); //push button b (green)
  pinMode(8, INPUT); //push button c (blue)
  pinMode(7, INPUT); //push button d (yellow)
  randomSeed(analogRead(0));
  //designate pin 11 to servo motor
  myservo.attach(11);
  Serial.begin(9600); //number of bits of 1 and 0s set ever second
  Serial.println("Hello");

}

int leds[4] = {5, 6, 9, 10}; //random led
bool hasWrittenOnce = false; //To test if the serial monitor has written something once
int count2 = 0;

void loop() {
  // put your main code here, to run repeatedly:

  //turn off all the LEDs
  digitalWrite(5, HIGH);
  digitalWrite(6, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(10, HIGH);

  /*Task 1 back and forth Led tracer
  while button A is presseed each led must blink twice in the follwoing sequence: green, red, blue, orange
  and then each led must blink twice in reverse order*/
  while(digitalRead(2)==HIGH) //while button A is pressed 
  {
    //iterate once need to go from green led (10) to red led (9) to blue led (6) and finally to the orange led pin (5)
    for(count2 = 0; count2 < 1; count2++)
    {
          //blink twice green LED
          digitalWrite(10, LOW);
          delay(150);
          digitalWrite(10, HIGH);
          delay(150);
          digitalWrite(10, LOW);
          delay(150);
          digitalWrite(10, HIGH);
          delay(300);
          //blink twice red LED
          digitalWrite(9, LOW);
          delay(150);
          digitalWrite(9, HIGH);
          delay(150);
          digitalWrite(9, LOW);
          delay(150);
          digitalWrite(9, HIGH);
          delay(300);
          //blink twice blue LED
          digitalWrite(6, LOW);
          delay(150);
          digitalWrite(6, HIGH);
          delay(150);
          digitalWrite(6, LOW);
          delay(150);
          digitalWrite(6, HIGH);
          delay(300);
          //blink twice orange LED
          digitalWrite(5, LOW);
          delay(150);
          digitalWrite(5, HIGH);
          delay(150);
          digitalWrite(5, LOW);
          delay(150);
          digitalWrite(5, HIGH);
          delay(300);
          //If the person is not clicking on the led then break out from the for loop goes back to the first for loop
          if(digitalRead(2)==LOW)
          {
            break;
          }
    } //loop for on iteration and blink all of the folowing leds (in reverse order)
    for(count2 = 0; count2 < 1; count2++)
    {
          //blink the orange led
          digitalWrite(5, LOW);
          delay(150);
          digitalWrite(5, HIGH);
          delay(150);
          digitalWrite(5, LOW);
          delay(150);
          digitalWrite(5, HIGH);
          delay(300);
          //blink twice blue LED
          digitalWrite(6, LOW);
          delay(150);
          digitalWrite(6, HIGH);
          delay(150);
          digitalWrite(6, LOW);
          delay(150);
          digitalWrite(6, HIGH);
          delay(300);
          //blink twice red LED
          digitalWrite(9, LOW);
          delay(150);
          digitalWrite(9, HIGH);
          delay(150);
          digitalWrite(9, LOW);
          delay(150);
          digitalWrite(9, HIGH);
          delay(300);
          //blink twice green LED
          digitalWrite(10, LOW);
          delay(150);
          digitalWrite(10, HIGH);
          delay(150);
          digitalWrite(10, LOW);
          delay(150);
          digitalWrite(10, HIGH);
          delay(300);
          //If the person is not clicking on the led then break out from the for loop goes back to the first for loop
          if(digitalRead(2)==LOW)
          {
            break;
          }
    }
  }
  /* method 1
  //2 Excercise 2: random led blinker while button B is presed continously and randomly select an Led and blink it twice
  //generate a random number between 5 and 11
  int randomPin = random(5, 11);
  //while button B or 12 is pressed
  while(digitalRead(12)==HIGH)
  {
    int randomPin = random(5, 11); //Need to generate a random number bewteeb 5 and 10 so need to add 1 to it so its 11 (1-10) excluding 11
    for(int i = 0; i < 2; i++) {  //Turn on and iterate a random led twice
      digitalWrite(randomPin, HIGH); //Turn on any random led 
      delay(500); //delay for 500ms to blink the led
      digitalWrite(randomPin, LOW); // Turn of the random led so that the next randpm led can be turned on
      delay(500); //delay for 500ms to blink the led
    }
    delay(1000);
    //if the user is not pressing anybutton then can break from the loop
    if(digitalRead(12)==LOW)
    {
      break;
    }
  }
  */
  //method 2
  //2 Excercise 2: random led blinker while button B is presed continously and randomly select an Led and blink it twice
  //generate a random number between 5 and 11
  //int randomPin = random(5, 11);
  //while button B or 12 is pressed
  while(digitalRead(12)==HIGH)
  {
    //int randomPin = random(5, 11); //Need to generate a random number bewteeb 5 and 10 so need to add 1 to it so its 11 (1-10) excluding 11
    for(int i = 0; i < 2; i++) {  //Turn on and iterate a random led twice
      digitalWrite(leds[random(0,sizeof(leds)/sizeof(int))], HIGH); //Turn on any random led 
      delay(500); //delay for 500ms to blink the led
      digitalWrite(leds[random(0,sizeof(leds)/sizeof(int))], LOW); // Turn of the random led so that the next randpm led can be turned on
      delay(500); //delay for 500ms to blink the led
    }//if the user is not pressing anybutton then can break from the loop
    if(digitalRead(12)==LOW)
    {
      break;
    }
  }
  //3 Excerise 3: Servo oscillator while button C is pressed incrementally rotate the servo back and froth between 20 and 120 degrees, momentarily stopiing at every single intermediate position for 8ms
  while(digitalRead(8)==HIGH)
  {
      //goes from 20 to 119 degrees
      for(position = 20; position < 120;)
      {
        //move the servo motor by 1 degree at each iteration
        //this gives us the incrementally rotate servo back and forth between 20 and 120
        myservo.write(position);
        //print to the serial screen what the rotation was at each single degree 
        Serial.print("Degrees Rotation= ");
        Serial.println(position);
        //8ms delay before going to the next degree
        delay(8);
        //increment by 1 degree each time
        position++;
        //goes out the while loop when button C is not presse
        if(digitalRead(8)==LOW)
        {
          break;
        }
      }
      delay(250); //delay at exactly 120 degree when reached there
      //goes from 120 to 20 degrees
      for(position = 120; position > 20;)
      {
        //move the servo motor by 1 degree at each iteration
        myservo.write(position);
        //print to the serial screen what the rotation was at each single degree 
        Serial.print("Degrees Rotation= ");
        Serial.println(position);
        //8ms delay before going to the next degree
        delay(8);
        //decrement by 1 degree each time
        position--;
        //goes out the while loop when button C is not presse
        if(digitalRead(8)==LOW)
        {
          break;
        }
      }
      delay(250); //delay at 20  degrees when reaches there
  }

  //excersice 4 Synchronized Dance
  //while Button D is pressed alternate between the followoign three states
  //1.Move the servo to 30degrees and blink blue LED twice
  //2.Move the servo to 90degrees and blink the green LED twice
  //3.Move the servo to 120degrees and  alternately blink the orange and red led twice (orange BLINK -> RED BLINK -> Orange bink->red blink)
  while(digitalRead(7)==HIGH)
  {
    //Rotate the serbo motor by 30 degrees
    myservo.write(30);
    //Blink the blue led twice
    for(int i = 0; i < 2; i++)
    {
        //turn on the blue led 
        digitalWrite(6, LOW);
        //delay for 50ms
        delay(50);
        //turn of the blue led
        digitalWrite(6, HIGH);
        //delay the led for 50ms
        delay(50);
        //if the user is not pressing the yellow button then break the while loop
        if(digitalRead(7)==LOW)
        {
          break;
        }
    }
    //rotate the servo motor to 90 degres
    myservo.write(90);
    //blink the green led 3 times
    for(int i = 0; i < 3; i++)
    {
        //turn on the green led
        digitalWrite(10, LOW);
        //delay the green led by 30ms
        delay(50);
        //turn off the green led
        digitalWrite(10, HIGH);
        //delay the green led by 50 ms
        delay(50);
        //is tehe user is not pressing the  yeloow button then break the while loop
        if(digitalRead(7)==LOW)
        {
          break;
        }
    }
    //then turn the servo to 120 degrees
    myservo.write(120);
    //alternately turn on the orange and the red leds twice
    for(count = 0;count < 2; count++)
    {
      //turn on the orange led
      digitalWrite(5, LOW);
      //delay the led for 100 ms
      delay(100);
      //then turn on the red led
      digitalWrite(9, LOW); 
      //delay 150 ms (miliseconds)
      delay(100);
      //turn off orange led
      digitalWrite(5, HIGH);
      //delay fro 100ms
      delay(100);
      //turn off the red led
      digitalWrite(9, HIGH);
      //delay 200 ms (miliseconds)
      delay(100);
    }
  }
}