// libraries
#include <Servo.h>
bool encendido = true;

//Semáforos
/*Semáforo 1*/
#define LedTren1 2
#define LedVerde1 3
#define LedAmarillo1 4
#define LedRojo1 5
/*Semáforo 2*/
#define LedTren2 6
#define LedVerde2 7
#define LedAmarillo2 8
#define LedRojo2 9


// Barrera (Servo motor)
int e=90;
int i=0;
Servo barrera;

// Boton //
#define boton 13 
int botonE = 0;
byte lastButtonState = LOW;
unsigned long debounceDuration = 100; // millis
unsigned long lastTimeButtonStateChanged = 0;

/// VOID ///
void setup (){
  //Barrera
  barrera.attach(11);
  barrera.write(90);
  delay(1000);

  // Semáforo setups
  pinMode(LedTren1,OUTPUT);
  pinMode(LedTren2,OUTPUT);
  
  pinMode(LedVerde1,OUTPUT);
  pinMode(LedAmarillo1,OUTPUT);
  pinMode(LedRojo1,OUTPUT);
  
  pinMode(LedVerde2,OUTPUT);
  pinMode(LedAmarillo2,OUTPUT);
  pinMode(LedRojo2,OUTPUT);

  //Boton//
  pinMode(boton,INPUT);
  
}

/// MAIN LOOP ///
void loop (){
  if (millis() - lastTimeButtonStateChanged > debounceDuration) {
    byte buttonState = digitalRead(boton);
    if (buttonState != lastButtonState) {
      lastTimeButtonStateChanged = millis();
      lastButtonState = buttonState;
      encendido=!encendido;
      if (buttonState==LOW) {
        ///TREN ESTÁ PASANDO
        if(e<90){
          e=e+90;
          barrera.write(e);}
        digitalWrite(LedTren1,1);
        digitalWrite(LedTren2,1);
        delay(5000);
      }
      else 
      {///TREN NO ESTÁ PASANDO
        if (e>0)
        {
          e=e-90;
          barrera.write(e);
        }
        semaforos();
        digitalWrite(LedTren1,0);
        digitalWrite(LedTren2,0);
      }
    }
  }
}


/// semaforos
void semaforos (){
  digitalWrite(LedTren1, 0);
  digitalWrite(LedTren2, 0);
  digitalWrite(LedVerde1, 1);
  digitalWrite(LedRojo2, 1);
  delay (1000);
  for(i=0;i<3;i++){
    digitalWrite(LedVerde1,1);
    digitalWrite(LedVerde1,0);
    delay(100);
  }
  digitalWrite(LedAmarillo1,1);
  delay(1000);
  digitalWrite(LedAmarillo1, 0);
  digitalWrite(LedRojo2, 0);
  digitalWrite(LedRojo1,1);
  digitalWrite(LedVerde2, 1);
  delay(1000);
  for(i=0;i<3;i++){
    digitalWrite(LedVerde2,1);
    digitalWrite(LedVerde2,0);
    delay(100);
  }
  digitalWrite(LedAmarillo2,1);
  delay(1000);
  digitalWrite(LedRojo1,0);
  digitalWrite(LedAmarillo2, 0);
}