Arduino - RGButtons

#define RED 7
#define BLUE 6
#define GREEN 5
#define R_BUTTON 2
#define G_BUTTON 1
#define B_BUTTON 0

int rFlag = 0;
int gFlag = 0;
int bFlag = 0;

bool rState = true;
bool gState = true;
bool bState = true;

void setup() {
   pinMode(RED, OUTPUT);
   pinMode(GREEN, OUTPUT);
   pinMode(BLUE, OUTPUT);
   pinMode(R_BUTTON, INPUT_PULLUP);
   pinMode(G_BUTTON, INPUT_PULLUP);
   pinMode(B_BUTTON, INPUT_PULLUP);
}

void loop() {
  digitalWrite(RED, rFlag);
  digitalWrite(GREEN, gFlag);
  digitalWrite(BLUE, bFlag);

  if ((digitalRead(R_BUTTON) == LOW) && rState) {
    rFlag = (rFlag + 1) % 2;
    rState = false;
  } else if (digitalRead(R_BUTTON) == HIGH) {
    rState = true;
  }

  if ((digitalRead(G_BUTTON) == LOW) && gState) {
    gFlag = (gFlag + 1) % 2;
    gState = false;
  } else if (digitalRead(G_BUTTON) == HIGH) {
    gState = true;
  }

  if ((digitalRead(B_BUTTON) == LOW) && bState) {
    bFlag = (bFlag + 1) % 2;
    bState = false;
  } else if (digitalRead(B_BUTTON) == HIGH) {
    bState = true;
  }
}