led dice with button

gistfile1.ino

const unsigned int LED_BIT0 = 12;
const unsigned int LED_BIT1 = 11;
const unsigned int LED_BIT2 = 10;
const unsigned int SWITCH_BIT = 9;

void setup() {
  pinMode(LED_BIT0, OUTPUT);
  pinMode(LED_BIT1, OUTPUT);
  pinMode(LED_BIT2, OUTPUT);
  pinMode(SWITCH_BIT, INPUT);
  randomSeed(analogRead(A0));
}

void loop() {
   
  //read button state
  if(digitalRead(SWITCH_BIT) != HIGH){
    roll();
    delay(200);
  }
}

void roll(){
  long result = random(1,7);
  output_result(result);    
}
  

void output_result(const long result) {
  digitalWrite(LED_BIT0, result & B001);
  digitalWrite(LED_BIT1, result & B010);
  digitalWrite(LED_BIT2, result & B100);
}

void clear_result(){
  digitalWrite(LED_BIT0, LOW);
  digitalWrite(LED_BIT1, LOW);
  digitalWrite(LED_BIT2, LOW); 
}