Simple Arduino elevator

elevator.ino

const int button1Pin = 1;
const int button2Pin = 2;
const int button3Pin = 3;
const int button4Pin = 4;
const int button5Pin = 5;

const int led1Pin =  9;
const int led2Pin =  10;
const int led3Pin =  11;
const int led4Pin =  12;
const int led5Pin =  13;

int button1State = 0;  
int button2State = 0;  
int button3State = 0;  
int button4State = 0;  
int button5State = 0; 



void setup() {
  
  pinMode(button1Pin, INPUT);  
  pinMode(button2Pin, INPUT);  
  pinMode(button3Pin, INPUT);  
  pinMode(button4Pin, INPUT);  
  pinMode(button5Pin, INPUT);  
  
  pinMode(led1Pin, OUTPUT);
  pinMode(led2Pin, OUTPUT);
  pinMode(led3Pin, OUTPUT);
  pinMode(led4Pin, OUTPUT);
  pinMode(led5Pin, OUTPUT);
 
 digitalWrite(led1Pin, HIGH); 
  

}

void loop() {

  button1State = digitalRead(button1Pin);
  button2State = digitalRead(button2Pin);
  button3State = digitalRead(button3Pin);
  button4State = digitalRead(button4Pin);
  button5State = digitalRead(button5Pin);
  

  if (button5State == HIGH) {
    for(int i=9; i < 13; i++){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led5Pin, HIGH);
    delay(1000);
    for(int i=13; i > 9; i--){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led1Pin, HIGH);
  }
  if (button4State == HIGH) {
    for(int i=9; i < 12; i++){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led4Pin, HIGH);
    delay(1000);
    for(int i=12; i > 9; i--){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led1Pin, HIGH);
  }
  if (button3State == HIGH) {
    for(int i=9; i < 11; i++){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led3Pin, HIGH);
    delay(1000);
    for(int i=11; i > 9; i--){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led1Pin, HIGH);
  }
  if (button2State == HIGH) {
    for(int i=9; i < 10; i++){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led2Pin, HIGH);
    delay(1000);
    for(int i=10; i > 9; i--){
      digitalWrite(i, HIGH);
      delay(300);
      digitalWrite(i, LOW);
    }
    digitalWrite(led1Pin, HIGH);
  }
  
  
}