int red = 9, green = 10, blue = 11;

void setup() {
  // put your setup code here, to run once:
  pinMode(red, OUTPUT);
  pinMode(green, OUTPUT);
  pinMode(blue, OUTPUT);

  analogWrite(red, 255);
  analogWrite(green, 255);
  analogWrite(blue, 255);
}

void loop() {
  for(int o=0; o<100; o++){
    b3();
  }

  b1();

  for(int o=0; o<75; o++){
    b2();
  }

}


// - - - - - - -- - -
void b3(){
  for(int i=0; i<255; i+=15){
    onRed(i);
    offGre(i);
    d(50);
  }

  for(int i=0; i<255; i+=15){
    onBlu(i);
    offRed(i);
    d(50);
  }

  for(int i=0; i<255; i+=15){
    onGre(i);
    offBlu(i);
    d(50);
  }

}

// - - - - - - -- - -
void b2(){
  for(int i=0; i<255; i+=5){
    onRed(i);
    offGre(i);
    d(50);
  }

  for(int i=0; i<255; i+=5){
    onBlu(i);
    offRed(i);
    d(50);
  }

  for(int i=0; i<255; i+=5){
    onGre(i);
    offBlu(i);
    d(50);
  }

}

// - - - - - - -- - -
void b1(){
  for(int i=0; i<20; i++){
    onRed(255);d(500);offRed(255);
    onGre(255);d(500);offGre(255);
    onBlu(255);d(500);offBlu(255);
  }
}



void d(int i){
  delay(i);
}

void onRed(int i){
  analogWrite(red, 255-i);
}
void offRed(int i){
  analogWrite(red, i);
}
void onBlu(int i){
  analogWrite(blue, 255-i);
}
void offBlu(int i){
  analogWrite(blue, i);
}
void onGre(int i){
  analogWrite(green, 255-i);
}
void offGre(int i){
  analogWrite(green, i);
}