//Medya Majidipanah 300394363
#include <Servo.h>
#include <Arduino.h>

Servo bubble; // the servo motor name 

//declaring my constants(led pins and buttons)
const int button_a = 2, button_d = 7, button_c = 8, button_b = 12;
const int amber_led = 5, blue_led = 6, red_led = 9, green_led = 10;

//declaring variables 
long randLed; // this is for our randomn function 

//this function is for making the led pins blink without writing the whole process constantly
//for this function we can put the pin number and the amount of time we want it to blink 
//the blinker() will make the selected led to blink the selected amount of time (led, rep)
void blinker(int LED, int reps){
  for (int i = 0; i <= reps; i++)
  {
    digitalWrite(LED,LOW);  // sets the digital pin LED off
    delay(150);             // waits for 150 ms
    digitalWrite(LED,HIGH); // sets the digit pin LED on
    delay(150);             // waits for 150 ms
  }
}
void setup() {
 // put your setup code here, to run once:

 // setting the digital pins as output for the LEDs
 pinMode(5, OUTPUT); 
 pinMode(6, OUTPUT);
 pinMode(9, OUTPUT);
 pinMode(10, OUTPUT);
 // setting the servo motor that it is connected to digital pin 11
 bubble.attach(11);

 // setting the digital pins as input for the push buttons
 pinMode(2, INPUT);
 pinMode(7, INPUT);
 pinMode(8, INPUT);
 pinMode(12, INPUT);
 //since we don't have a connected digita pin 0 
 //the analog noise will make the randomseed() to generate diff seed numbers
 // randomseed()will then start shuffling
 randomSeed(analogRead(0));
}

void loop() {
 // put your main code here, to run repeatedly:
 // in our void loop before all of our while loops we put this digitalwrite() for
 // all the LED pins so the are turned off if a button is not pressed
 //and the motor servo is at 0 degrees position
 digitalWrite(amber_led,HIGH);
 digitalWrite(blue_led,HIGH);
 digitalWrite(red_led,HIGH);
 digitalWrite(green_led,HIGH);
 bubble.write(0);
 //This while loop is for when Button A is pressed
 //button A = yellow button
 //BACK AND FORTH LED TRACER
 //for creating this task , we need the blinker() function
 //the blinker() will make the selected led to blink the selected amount of time (led, rep)
 // since we have our blinker function , we don't have to write digital write repetedly 
 // or the delay function , because it's already in our blinker function
 while(digitalRead(2))
 {
    blinker(green_led,2); //the blinker function is gonna make the green led blink twice
    blinker(red_led,2);//the blinker function is gonna make the red led blink twice
    blinker(blue_led,2);//the blinker function is gonna make the blue led blink twice
    blinker(amber_led,2);//the blinker function is gonna make the amber led blink twice
    //here one round is done and the reverse starts but we dont put the
    //amber/orange led cuz it already blinked and if we write it twice it gonna blink 4 times
    blinker(blue_led,2);//the blinker function is gonna make the blue led blink twice
    blinker(red_led,2);//the blinker function is gonna make the red led blink twice
    //here if we write blinker function for the green LED , then it's going to blink twice
    // and then twice again when the loop restarts , so we don't write it here
 }

 //This while loop is for when Button B is pressed
 //button B = green button
 //RANDOM LED BLINKER
 //for creating this task , we need the blinker() function and we also use if statements
 //the blinker() will make the selected led to blink the selected amount of time (led, rep)
 //we don't need to include delay()in our if statements, 
 //since the blinker function has the delay() written in.
 while(digitalRead(12))
 {
   //picke a random number between 5 to 10 (which is the range for the led digital pins)
    randLed = random(5,11);
   //after the random number/digtial pin has been picked our blinker function
   //is set to work based on that number 
   //but since we only have 4 digital pin connected , so incase it will generate a number that 
   //does not have a pin connected to , for it to not cause a delay , we need to create an if 
   //statement , so it will only blink for a selected digital pins 
    if (randLed == 5) // if the random number is 5 the amber led will blink twice 
    {
     blinker(randLed,2);
     //delay(150); 
    }
    else if (randLed == 6) // if the random number is 6 the blue led will blink twice 
    {
     blinker(randLed,2);
     //delay(150);
    }
    else if (randLed == 9) // if the random number is 9 the red led will blink twice 
    {
     blinker(randLed,2); 
     //delay(150);
    }
    else if (randLed == 10) // if the random number is 10 the green led will blink twice 
    {
     blinker(randLed,2);
     //delay(150);
    }
 }

 //This while loop is for when Button C is pressed
 //button C = red button
 //SERVO OSCILLATOR
 //for creating this task , we need two for loops make one to rotate the servo forward ,
 //and one to rotate it backward .
 //we use bubble.write() and delay() inside each for loop
 // the for loop will also makes the servo to momentarily stop when it moves one degree 
 //inside the for loop the bubble.write() is that for the selected degree, delay()wait 8 ms
 //so when it moves one degree it will wait for 8 ms  
 while(digitalRead(8))
 {
   // this for loop will rotate the servo from 20 degrees to 120 degrees and moves forward 
    for (int j = 20; j <=120; j++) // the j++ is so it will add one degree to the previous position
    {
      bubble.write(j);  // at this position
      delay(8);         //wait for 8 millisecond then move to next position
    }
    // this for loop will rotate the servo from 120 degrees to 20 degrees and moves backward
    for(int j = 120; j <= 20; j--) // the j-- is so it will deduct one degree from the previous position
    {
      bubble.write(j); // at this position 
      delay(8);        //wait for 8 millisecond then move to next position
    }
 }
 //This while loop is for when Button D is pressed
 //button D = blue button
 //SYNCHRONIZED DANCE
 //for creating this task , we need the blinker(), bubble.write() and the delay() function
 //the blinker() will make the selected led to blink the selected amount of time (led, rep)
 //the bubble.write() will rotate the servo motor to the selected posiotion in degrees , (degree)
 //the delay() will wait for a selected amount of time in millisecond (time), which we
 //only need to use before our buuble.write() function , since the blinker function has the delay() written in.
 while(digitalRead(7)) 
 {
    bubble.write(30); //the bubble.write() will move the motr servo to 30 degrees
    blinker(blue_led,2); //the blinker function is gonna make the blue led blink twice
    delay(150); //wait for 150 ms then start the next function
    bubble.write(90); //the bubble.write() will move the motr servo to 90 degrees
    blinker(green_led,3); //the blinker function is gonna make the green led blink three times
    delay(150); //wait for 150 ms then start the next function
    bubble.write(120); //the bubble.write() will move the motr servo to 120 degrees
    blinker(amber_led,1); //the blinker function is gonna make the amber led blink once
    blinker(red_led,1); //the blinker function is gonna make the red led blink once
    blinker(amber_led,1); //the blinker function is gonna make the amber led blink once
    blinker(red_led,1); // the blinker function is gonna make the red led blink once
    delay(150); //wait for 150 ms then start the next function
 }
}