#include <LiquidCrystal_I2C.h>


//boton a
#define butt 15
//boton s
#define butt1 5
//boton w
#define butt2 18
//boton d
#define butt3 19 


int cont_x = 0;
int cont_y = 0;

LiquidCrystal_I2C lcd = LiquidCrystal_I2C(0X27,16, 2);


int lastButtonState = LOW;
int lastButtonState1 = LOW;
int lastButtonState2 = LOW;
int lastButtonState3 = LOW;

int pos_x_pac = 1;
int pos_y_pac = 0;

int pos_x_com = 5;
int pos_y_com = 0;

int estado = 0;

byte BocaAbierta[8] = {
  0b01110,
  0b11101,
  0b11110,
  0b11100,
  0b11100,
  0b11110,
  0b11111,
  0b01110
};

byte replace[8] = {
  0b00000,
  0b00000,
  0b00000,
  0b10100,
  0b01000,
  0b10100,
  0b00000,
  0b00000,
};

byte comida[8] = {
  0b00000,
  0b00000,
  0b00000,
  0b11100,
  0b11100,
  0b11100,
  0b00000,
  0b00000,
};

void paint();

void setup() {
  // put your setup code here, to run once:

  pinMode(butt1, INPUT);
  pinMode(butt1, INPUT);
  pinMode(butt2, INPUT);
  pinMode(butt3, INPUT);

  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  lcd.init();
  lcd.backlight();
  lcd.setCursor(3,1);
  delay(1000);
  lcd.print("BIENVENIDO");
  
  lcd.setCursor(0,0);
  lcd.createChar(0, BocaAbierta);
  lcd.createChar(1, comida);
  lcd.createChar(2, replace);


  delay(2000);
}

void loop() {

  int buttonState = digitalRead(butt);
  int buttonState1 = digitalRead(butt1);
  int buttonState2 = digitalRead(butt2);
  int buttonState3 = digitalRead(butt3);

  if (buttonState == HIGH &&  buttonState1 == LOW&&  buttonState2 == LOW&&  buttonState3 == LOW&& lastButtonState == LOW) {
      boton1();
  }
  
  if (buttonState1 == HIGH &&  buttonState == LOW&&  buttonState2 == LOW&&  buttonState3 == LOW&& lastButtonState1 == LOW) {
      boton2();
  }
    
  if (buttonState2 == HIGH &&  buttonState1 == LOW&&  buttonState == LOW&&  buttonState3 == LOW&& lastButtonState2 == LOW) {
      boton3();
  }

  if (buttonState3 == HIGH&&  buttonState1 == LOW&&  buttonState2 == LOW&&  buttonState == LOW&& lastButtonState3 == LOW) {
      boton4();
  }


}

void paint()
{
    lcd.setCursor(pos_x_com,pos_y_com);
    lcd.write((byte)1);

}

void boton1()
{
    
    lcd.clear();

    if (estado == 0)
    {
        paint();
    }
    
    
    if (estado == 1)
    {
        lcd.setCursor(pos_x_com,pos_y_com);
        lcd.print(" ");
    }

    cont_x += 1;
    pos_x_pac = cont_x;

    if(pos_x_pac < 15)
    {
      lcd.setCursor(pos_x_pac,pos_y_pac);
      lcd.write((byte)0); 
    
    }

    if(pos_x_pac == pos_x_com && pos_y_pac == pos_y_com){
      estado = 1;
    }
    
    if(pos_x_pac == 15)
    {
        cont_x = 1;
        pos_x_pac = cont_x;
        lcd.setCursor(pos_x_pac,pos_y_pac);
        lcd.write((byte)0); 
    }

  delay(100);
}

void boton2()
{
   
    lcd.clear();

    if (estado == 0)
    {
        paint();
    }
    
    
    if (estado == 1)
    {
        lcd.setCursor(pos_x_com,pos_y_com);
        lcd.print(" ");
    }

    cont_x -= 1;
    pos_x_pac = cont_x;
    
    if(pos_x_pac > 0)
    {
        lcd.setCursor(pos_x_pac,pos_y_pac);
        lcd.write((byte)0);   
    }

 
    
    if(pos_x_pac == pos_x_com && pos_y_pac == pos_y_com){
      estado = 1;
    }
    
    if(pos_x_pac == 0)
    {
        
        cont_x = 14;
        pos_x_pac = cont_x;
        lcd.setCursor(pos_x_pac,pos_y_pac);
        lcd.write((byte)0); 
    }

  delay(100);
}

void boton3()
{
    
    lcd.clear();

    if (estado == 0)
    {
        paint();
    }
    
    
    if (estado == 1)
    {
        lcd.setCursor(pos_x_com,pos_y_com);
        lcd.print(" ");
    }

    cont_y += 1;
    pos_y_pac = cont_y;
    
    if(pos_y_pac < 2)
    {
        lcd.setCursor(pos_x_pac,pos_y_pac);
        lcd.write((byte)0);   
    }

    if(pos_x_pac == pos_x_com && pos_y_pac == pos_y_com){
      estado = 1;
    }
    
    if(pos_y_pac == 2)
    {
        cont_y = 0;
        pos_y_pac = cont_y;
        lcd.setCursor(pos_x_pac,pos_y_pac);
        lcd.write((byte)0); 
    }

  delay(100);
}

void boton4()
{
    
    lcd.clear();

    if (estado == 0)
    {
        paint();
    }
    
    if (estado == 1)
    {
        lcd.setCursor(pos_x_com,pos_y_com);
        lcd.print(" ");
    }

    cont_y -= 1;
    pos_y_pac = cont_y;
    
    if(pos_y_pac > -1)
    {
        lcd.setCursor(pos_x_pac,pos_y_pac);
        lcd.write((byte)0);   
    }

    if(pos_x_pac == pos_x_com && pos_y_pac == pos_y_com){
      estado = 1;
    }
    
    if(pos_y_pac == -1)
    {
        cont_y = 1;
        pos_y_pac = cont_y;
        lcd.setCursor(pos_x_pac,pos_y_pac);
        lcd.write((byte)0); 
    }

  delay(100);
}