// Midterm
// Kayla Frost 300390878
// Feb 12 2025




// include servo library for the Servo motor
#include <Servo.h>

// include FastLED library for the NeoPixel ring
#include <FastLED.h>

// define pin numbers to led colors
int aled = 11; // amber led
int bled = 10; // blue led
int rled = 9; // red led
int gled = 8; // green led

// define pin numbers to button letters
int butd = 6; // yellow/amber button
int butc = 7; // blue button
int butb = 3; // green button
int buta = 2; // red button

//define servo name and pin number
int servoPin = 12;
// define servo motor called myservo
Servo myservo;
// variable to store motor's position (in degrees)
int pos = 0;

void setup() // put your setup code here, to run once:
{
  // all pins connected to leds are outputs
  pinMode(aled, OUTPUT);
  pinMode(bled, OUTPUT);
  pinMode(rled, OUTPUT);
  pinMode(gled, OUTPUT);

  // all pins connected to buttons are inputs
  pinMode(butd, INPUT);
  pinMode(butc, INPUT);
  pinMode(butb, INPUT);
  pinMode(buta, INPUT);

  // turn all LEDs off initially
  for (int pin = 8; pin <= 11; pin++)
  {
    digitalWrite(pin, HIGH);
  }

  // serial monitor to print stuff
  Serial.begin(9600);

  // attach servo motor to pin 12
  myservo.attach(servoPin);

  // move servo to initial position of 20 degrees
  myservo.write(20);


}

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

  // number of cells = 16 (given)
  // NOTE: use #define or const int
  #define neoNumCells 16

  //define NeoPixel for pin it goes into
  // NOTE: use #define or const int
  #define neoData 13

  // CRGB from library
  // defines array with number of cells in ring
  CRGB NeoArray[neoNumCells];

  //fastLED.addLeds from library
  // < NEOPIXEL , data> (array name , number of cells)
  FastLED.addLeds<NEOPIXEL, neoData>(NeoArray, neoNumCells);

  // while button A (red button) is pressed, continuously and randomly select one LED and blink twice
  // while button b (green button) is pressed, change colors at once, then 

  // while button c (blue button) is pressed, smooth rotate the servo back and forth between 20 and 120 degrees
  while (digitalRead(butc))
  {
    // smooth rotation fro 20 to 120 degrees
    for (pos = 20; pos <= 120; pos++)
    {
      myservo.write(pos);
      delay(8);
    }

    // smooth rotation fro 20 to 120 degrees
    for (pos = 120; pos >= 20; pos--)
    {
      myservo.write(pos);
      delay(8);
    }
  }


}