#include <Servo.h>

int rPin = 13;
int gPin = 12;
int bPin = 11;
int bottonPin = 7;
int bottonLedPin = 2;
int fadePin = 8;
int servoPin = 6;

int R_ledState = LOW;
int G_ledState = LOW;
int B_ledState = LOW;
int Botton_ledState = LOW;
int bright = 0;
int pos = 0;
int posIncr = 1;

unsigned long currentMillis = 0;
unsigned long R_previousMillis = 0;
unsigned long G_previousMillis = 0;
unsigned long B_previousMillis = 0;
unsigned long Botton_previousMillis = 0;
unsigned long fade_previousMillis = 0;
unsigned long servo_previousMillis = 0;

int R_interval = 1000;
int G_interval = 500;
int B_interval = 100;
int Botton_interval = 10;
int fade_interval = 100;
////////////////servo
int servo_interval = 50;
Servo myservo;

void setup() {
  pinMode(rPin, OUTPUT);
  pinMode(gPin, OUTPUT);
  pinMode(bPin, OUTPUT);
  pinMode(bottonPin, INPUT_PULLUP);
  pinMode(bottonLedPin, OUTPUT);
  pinMode(fadePin, OUTPUT);
///////////////// servo
  pinMode(servoPin, OUTPUT);
  myservo.attach(servoPin); 
}

void loop() {
 
  Blink();
  BottonPress();
  fade();
  servo();

}


void Blink() {
  currentMillis = millis();
  ////////////////
    if (currentMillis - R_previousMillis >= R_interval) {
    R_previousMillis = currentMillis;
    if (R_ledState == LOW) {
      R_ledState = HIGH;
      R_interval = 2000;
    } else {
      R_ledState = LOW;
      R_interval = 500;
    }
    digitalWrite(rPin, R_ledState);
  }
  ///////////////////
    if (currentMillis - G_previousMillis >= G_interval) {
    G_previousMillis = currentMillis;
    if (G_ledState == LOW) {
      G_ledState = HIGH;
      G_interval = 2000;
    } else {
      G_ledState = LOW;
      G_interval = 300;
    }
    digitalWrite(gPin, G_ledState);
  }
    //////////////////
    if (currentMillis - B_previousMillis >= B_interval) {
    B_previousMillis = currentMillis;
    if (B_ledState == LOW) {
      B_ledState = HIGH;
      B_interval = 2000;
    } else {
      B_ledState = LOW;
      B_interval = 100;
    }
    digitalWrite(bPin, B_ledState);
  }
}

void BottonPress(){
  currentMillis = millis();
  if (currentMillis - Botton_previousMillis >= Botton_interval) {
    Botton_previousMillis = currentMillis;
    Botton_ledState = digitalRead(bottonPin);
    if (Botton_ledState == LOW) {
      Botton_ledState = HIGH;
    } else {
      Botton_ledState = LOW;
    }
    digitalWrite(bottonLedPin, Botton_ledState);
  }
}

void fade(){
  currentMillis = millis();
  if (currentMillis - fade_previousMillis >= fade_interval) {
    fade_previousMillis = currentMillis;
    bright++;
    analogWrite(fadePin,bright);
    if (bright >= 255){
      bright = 0;
    }
  }

}

void servo(){
  currentMillis = millis();
  if (currentMillis - servo_previousMillis >= servo_interval) {
    servo_previousMillis = currentMillis;
    pos += posIncr;
    myservo.write(pos); 
    if (pos >=180 || pos <=0){
      posIncr =- posIncr;
      
    }
  }
}