int latchPin = 8;
int clockPin = 12;
int dataPin = 11;

int numOfRegisters = 2;
byte* registerState;

long effectId = 0;
long prevEffect = 0;
long effectRepeat = 0;
long effectSpeed = 30;

void setup() {
	//Initialize array
	registerState = new byte[numOfRegisters];
	for (size_t i = 0; i < numOfRegisters; i++) {
		registerState[i] = 0;
	}

	//set pins to output so you can control the shift register
	pinMode(latchPin, OUTPUT);
	pinMode(clockPin, OUTPUT);
	pinMode(dataPin, OUTPUT);
}


void effect1(int startpin,int endpin){
  for(int i = startpin; i <= endpin; i++){
    regWrite(i, HIGH);
			delay(500);
			regWrite(i, LOW);

  }
}

void loop(){
  regWrite(5, HIGH);
			delay(500);
			regWrite(5, LOW);
  effect1(0,7);
}


void regWrite(int pin, bool state){
	//Determines register
	int reg = pin / 8;
	//Determines pin for actual register
	int actualPin = pin - (8 * reg);

	//Begin session
	digitalWrite(latchPin, LOW);

	for (int i = 0; i < numOfRegisters; i++){
		//Get actual states for register
		byte* states = &registerState[i];

		//Update state
		if (i == reg){
			bitWrite(*states, actualPin, state);
		}

		//Write
		shiftOut(dataPin, clockPin, MSBFIRST, *states);
	}

	//End session
	digitalWrite(latchPin, HIGH);
}