const int rled = 11;
const int gled = 10;
const int bled = 9;
const int button = 2;
boolean lastbutton = LOW;
boolean currentbutton = LOW;
int ledmode = 0;

void setup() {
  pinMode(rled, OUTPUT);
  pinMode(gled, OUTPUT);
  pinMode(bled, OUTPUT);
  pinMode(button, INPUT);
}
boolean debounce (boolean prev)
{
  boolean current = digitalRead(button);
  if (current != prev)
  {
    delay (5);
    current = digitalRead(button);
  }
  return current;
}
void setmode (int prevmode)
{ 
  if (prevmode == 1)
  {
    digitalWrite(rled, HIGH);
    digitalWrite(gled, LOW);
    digitalWrite(bled, LOW);
  }
  if (prevmode == 2)
  {
    digitalWrite(rled, LOW);
    digitalWrite(gled, HIGH);
    digitalWrite(bled, LOW);
  }
  if (prevmode == 3)
  {
    digitalWrite(rled, LOW);
    digitalWrite(gled, LOW);
    digitalWrite(bled, HIGH);
  }
  if (prevmode == 4)
  {
    digitalWrite(rled, 127);
    digitalWrite(gled, 0);
    digitalWrite(bled, 127);
  }
  if (prevmode == 5)
  {
    digitalWrite(rled, 127);
    digitalWrite(gled, 127);
    digitalWrite(bled, 0);
  }
  if (prevmode == 6)
  {
    digitalWrite(rled, 0);
    digitalWrite(gled, 127);
    digitalWrite(bled, 127);
  }
  if (prevmode == 7)
  {
    digitalWrite(rled, 85);
    digitalWrite(gled, 85);
    digitalWrite(bled, 85);
  }
  if (prevmode == 8)
  {
    digitalWrite(rled, 127);
    digitalWrite(gled, 63);
    digitalWrite(bled, 63);
  }
  else
  {
    digitalWrite(rled, LOW);
    digitalWrite(gled, LOW);
    digitalWrite(bled, LOW);
  }
}



void loop() 
{
  currentbutton = debounce(lastbutton);
  if (lastbutton == LOW && currentbutton == HIGH)
  { 
    ledmode++;
  }
  lastbutton = currentbutton;

  if (ledmode == 8)
  {
    ledmode = 0;
  }
  setmode(ledmode);
}