#include <Arduino.h>
#include <Servo.h>

Servo myServo;

const byte servo_pin = 9;
const byte pot = A0;
const byte Rled = 13;
const byte Bled = 12;
const byte Gled = 11;
const byte sw = 2;

int redv = 0;
int greenv = 0;
int  bluev = 0;
int value = 0;

bool ledState = HIGH;
bool buttonstate;
bool lastbuttonstate = LOW;

unsigned long lastdebouncetime = 0;
const byte debouncedelay = 50;

int rotate = 0;

void setup()
{
    Serial.begin(9600);

    pinMode(Rled, OUTPUT);
    pinMode(Bled, OUTPUT);
    pinMode(Gled, OUTPUT);
    pinMode(sw, INPUT);
    
    myServo.attach(9);
    
}


void loop()
{
    int reading = digitalRead(sw);
    if (reading != lastbuttonstate)
    {
        lastdebouncetime = millis();
    }
    if ((millis() - lastdebouncetime) > debouncedelay)
    {
        if (reading != buttonstate)
        {
            buttonstate = reading;
            if (buttonstate == HIGH)
            {
                rotate = random(3) * 90;
                int randomA = random(3);
                myServo.write(rotate);
                Serial.print("Current angle is : ");
                Serial.println(rotate);                
            }
        }
    }
    lastbuttonstate = reading;
    int val = analogRead(pot) / 4;
    int changevalue = map(val, 0, 1023, 0, 255);
    // analogWrite(Rled, changevalue);  //문제 코드
    // analogWrite(Gled, changevalue);  //문제 코드
    // analogWrite(Bled, changevalue);  //문제 코드


    changeled(rotate);   // 위치 변경 , 왜 변경했는지 고민
}

void rgbcolor(int red, int green, int blue)
{
    redv = red;
    greenv = green;
    bluev = blue;
    digitalWrite(Rled, redv);
    digitalWrite(Gled, greenv);
    digitalWrite(Bled, bluev);
}
void changeled(int ran)
{

    switch (ran)
    {
    case 0 ... 89:
        rgbcolor(255, 0, 0);
        break;
    case 90 ... 179:
        rgbcolor(0, 255, 0);
        break;
    case 180:
        rgbcolor(0, 0, 255);
        break;    
    }

}