#include <Wire.h>
#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C lcd(0x27, 16, 2);


byte smileyFace[8] = { 
  0b00000,
  0b01010,
  0b01010,
  0b00000,
  0b10001,
  0b01110,
  0b00000,
  0b00000
};

byte sadFace[8] = { 
  0b00000,
  0b01010,
  0b01010,
  0b00000,
  0b01110,
  0b10001,
  0b00000,
  0b00000
};

byte heart[8] = { 
  0b00000,
  0b01010,
  0b11111,
  0b11111,
  0b01110,
  0b00100,
  0b00000,
  0b00000
};

byte star[8] = { 
  0b00100,
  0b11111,
  0b01110,
  0b11111,
  0b00100,
  0b00000,
  0b00000,
  0b00000
};


int smileyX = 0, smileyY = 0; 
int sadX = 15, sadY = 0;      
int heartX = 0, heartY = 1; 
int starX = 15, starY = 1;    


int smileyDirX = 1, smileyDirY = 1; 
int sadDirX = -1, sadDirY = 1;      
int heartDirX = 1, heartDirY = -1;  
int starDirX = -1, starDirY = -1;   
void setup() {
  lcd.init();
  lcd.backlight();

  
  lcd.createChar(0, smileyFace);
  lcd.createChar(1, sadFace);
  lcd.createChar(2, heart);
  lcd.createChar(3, star);

  lcd.clear();
}

void loop() {
  
  lcd.setCursor(smileyX, smileyY);
  lcd.print(" ");
  lcd.setCursor(sadX, sadY);
  lcd.print(" ");
  lcd.setCursor(heartX, heartY);
  lcd.print(" ");
  lcd.setCursor(starX, starY);
  lcd.print(" ");

 
  smileyX += smileyDirX;
  smileyY += smileyDirY;
  sadX += sadDirX;
  sadY += sadDirY;
  heartX += heartDirX;
  heartY += heartDirY;
  starX += starDirX;
  starY += starDirY;

 
  if (smileyX < 0 || smileyX > 15) smileyDirX = -smileyDirX;
  if (smileyY < 0 || smileyY > 1) smileyDirY = -smileyDirY;

  if (sadX < 0 || sadX > 15) sadDirX = -sadDirX;
  if (sadY < 0 || sadY > 1) sadDirY = -sadDirY;

  if (heartX < 0 || heartX > 15) heartDirX = -heartDirX;
  if (heartY < 0 || heartY > 1) heartDirY = -heartDirY;

  if (starX < 0 || starX > 15) starDirX = -starDirX;
  if (starY < 0 || starY > 1) starDirY = -starDirY;

 
  lcd.setCursor(smileyX, smileyY);
  lcd.write(byte(0)); 
  lcd.setCursor(sadX, sadY);
  lcd.write(byte(1)); 
  lcd.setCursor(heartX, heartY);
  lcd.write(byte(2)); 
  lcd.setCursor(starX, starY);
  lcd.write(byte(3)); // ดาว

  delay(200); 
}