/* switch

   Each time the input pin goes from LOW to HIGH (e.g. because of a push-button
   press), the output pin is toggled from LOW to HIGH or HIGH to LOW.  There's
   a minimum delay between toggles to debounce the circuit (i.e. to ignore
   noise).

   David A. Mellis
   21 November 2006
*/

int inPin = 2;         // the number of the input pin
int outPin = 13;      // the number of the output pin1
int outPin2 = 12;     //the number of output pin2
int var = 0;          // variable for the switch

int state2 = LOW;      // the current state of the output pin2
int state = HIGH;      // the current state of the output pin1
int reading;           // the current reading from the input pin
int previous = LOW;    // the previous reading from the input pin

// the follow variables are long's because the time, measured in miliseconds,
// will quickly become a bigger number than can be stored in an int.
long time = 0;         // the last time the output pin was toggled
long debounce = 200;   // the debounce time, increase if the output flickers

void setup()
{
  pinMode(inPin, INPUT);
  pinMode(outPin, OUTPUT);
  pinMode(outPin2, OUTPUT);
}

void loop()
{
  reading = digitalRead(inPin);

  // if the input just went from LOW and HIGH and we've waited long enough
  // to ignore any noise on the circuit, toggle the output pin and remember
  // the time
  if (reading == HIGH && previous == LOW && millis() - time > debounce) {
    var = var + 1;
     if (var >= 4) {
          var = 0; //zero var
        }
    switch (var) {
      case 1:
        //do something when var equals 1
        state = HIGH;
        state2 = LOW;
        break;
      case 2:
        //do something when var equals 2
        state2 = HIGH;
        state = LOW;
        break;
      case 3:
        //do something when var equals 2
        state2 = HIGH;
        state = HIGH;
        break;
      default:
        state = LOW;
        state2 = LOW;
        // if nothing else matches, do the default
        // default is optional
        break;
       
    }
    time = millis();
  }

  digitalWrite(outPin, state);
  digitalWrite(outPin2, state2);
  previous = reading;
}