How to do a mood lamp using Arduino

//setup our used ports (where we have the LEDs), put them in the right order!!! Which is RGB!
//            R  G  B
int leds[] = {11,10,9};

//the values for our LEDs, in RGB order
//              R  G  B
int values[] ={255,0,0};
//we need this just to reset it to the current state
int defValues[] ={255,0,0};

//this is our counter
int cnt = -1;

//set here the delay (in milliseconds)
int delaySec = 100;

//setup function, runs only once when the board is initialized
void setup(){
  //set our ports for output (so we have power to light up the LEDs)
  for (int i=0;i<3;i++){
    pinMode(leds[i], OUTPUT);
  }
  //call our test function
  test();
}

//function to test if all our LEDs are ok
void test(){
  //keep them a second on and then turn them off
  for (int i=0;i<3;i++){
    digitalWrite(leds[i], HIGH);
    delay(1000);
    digitalWrite(leds[i], LOW);
  }
  //test them fading too
  for (int i=0;i<3;i++){
    for (int j=0;j<256;j++){
        analogWrite(leds[i], j);
        delay(10);
    }
    digitalWrite(leds[i], LOW);
  }
  delay(3000);
}

//this function is looping for the whole execution
//the login go from Red->Green, Green->Blue, Blue->Red
void loop(){

  //increase our counter
  cnt++;

  //take decisions
  if (cnt < 254){
    values[0]--;
    values[1]++;
    values[2] = 0;
  }

  if ((cnt > 253) && (cnt < 509)){
    values[0] = 0;
    values[1]--;
    values[2]++;
  }

  if ((cnt > 508) && (cnt < 763)){
    values[0]++;
    values[1]=0;
    values[2]--;
  }

  if (cnt > 762){
    values[0] = 255;
    values[1] = 0;
    values[2] = 0;
    cnt = -1;
  }

  cnt++;

  //change colors
  for (int i=0;i<3;i++){
    analogWrite(leds[i], values[i]);
    delay(delaySec);
  }

}