const int nColors = 3; // define the number of colors
const int red = 0; // position in the colorPin array for the red pin
const int grn = 1; // position in the colorPin array for the green pin
const int blu = 2; // position in the colorPin array for the blue pin

// Define pin numbers for the RGB LED
const int redPin = 9;
const int grnPin = 10;
const int bluPin = 11;

// Declare the colorPin array globally
const int colorPin[nColors] = {redPin, grnPin, bluPin};

void coloron(int color, int intensity) {
  switch (color) {
    case red:
      analogWrite(colorPin[red], intensity);
      break;
    case grn:
      analogWrite(colorPin[grn], intensity);
      break;
    case blu:
      analogWrite(colorPin[blu], intensity);
      break;
  }
}

void coloroff(int color) {
  analogWrite(colorPin[color], 0);
}

void allColorsOff() {
  for (int color = 0; color < nColors; color++) {
    coloroff(color);
  }
}

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(grnPin, OUTPUT);
  pinMode(bluPin, OUTPUT);
}

void loop() {
  // Start turning on and off lights
  /*for (int color = 0; color < nColors; color++) {
    for (int i = 0; i < 256; i++) { // slowly increase the color
      coloron(color, i);
      delay(5);
    }

    for (int i = 255; i > 0; i--) { // slowly decrease the color
      coloron(color, i);
      delay(5);
    }

    coloroff(color);
  }

  delay(500);*/

  // Generate custom light
  coloron(red, 250);
  coloron(grn, 250);
  coloron(blu, 23);
  delay(2000); // Display cyan for 2 seconds

  // Turn off all colors
  allColorsOff();
}