#define RED_PIN 19
#define GREEN_PIN 18
#define BLUE_PIN 25

#define LEDRED 23
#define LEDGREEN 22
#define LEDBLUE 21

#define RED_BUTTON_PIN 34
#define GREEN_BUTTON_PIN 35
#define BLUE_BUTTON_PIN 32

void setup() {
  pinMode(RED_PIN, OUTPUT);
  pinMode(GREEN_PIN, OUTPUT);
  pinMode(BLUE_PIN, OUTPUT);

  pinMode(LEDRED, OUTPUT);
  pinMode(LEDGREEN, OUTPUT);
  pinMode(LEDBLUE, OUTPUT);

  pinMode(RED_BUTTON_PIN, INPUT_PULLUP);
  pinMode(GREEN_BUTTON_PIN, INPUT_PULLUP);
  pinMode(BLUE_BUTTON_PIN, INPUT_PULLUP);

  setColor(0, 0, 0);
}

void loop() {
  // Read the state of each button
  int redButtonState = digitalRead(RED_BUTTON_PIN);
  int greenButtonState = digitalRead(GREEN_BUTTON_PIN);
  int blueButtonState = digitalRead(BLUE_BUTTON_PIN);

  // If only one button is pressed, turn on the corresponding LED
  if (redButtonState == LOW && greenButtonState == HIGH && blueButtonState == HIGH) {
    setColor(255, 0, 0); // Red
  } else if (greenButtonState == LOW && redButtonState == HIGH && blueButtonState == HIGH) {
    setColor(0, 255, 0); // Green
  } else if (blueButtonState == LOW && redButtonState == HIGH && greenButtonState == HIGH) {
    setColor(0, 0, 255); // Blue
  } 
  // If two buttons are pressed, mix the corresponding colors
  else if (redButtonState == LOW && greenButtonState == LOW && blueButtonState == HIGH) {
    setColor(255, 255, 0); // Yellow (Red + Green)
  } else if (redButtonState == LOW && blueButtonState == LOW && greenButtonState == HIGH) {
    setColor(255, 0, 255); // Magenta (Red + Blue)
  } else if (greenButtonState == LOW && blueButtonState == LOW && redButtonState == HIGH) {
    setColor(0, 255, 255); // Cyan (Green + Blue)
  }
  // If all buttons are pressed, turn on the RGB LED to white
  else if (redButtonState == LOW && greenButtonState == LOW && blueButtonState == LOW) {
    setColor(255, 255, 255); // White
  }
  // If no button is pressed, turn off LEDs
  else {
    setColor(0, 0, 0); // Turn off LEDs if no button is pressed
  }
}


void setColor(int red, int green, int blue) {
  analogWrite(RED_PIN, red);
  analogWrite(GREEN_PIN, green);
  analogWrite(BLUE_PIN, blue);
}