#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128  // Lebar layar OLED dalam piksel
#define SCREEN_HEIGHT 64  // Tinggi layar OLED dalam piksel

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

const int BUTTON_UP_PIN = 2;     // Pin digital untuk push button ke atas
const int BUTTON_DOWN_PIN = 3;   // Pin digital untuk push button ke bawah
const int BUZZER_PIN = 4;        // Pin untuk buzzer
const int LED_PIN = 5;           // Pin untuk LED

const int PLAYER_SIZE = 5;       // Ukuran pemain
int playerX, playerY;            // Koordinat pemain
const int OBSTACLE_SIZE = 5;     // Ukuran objek penghalang
int obstacleX, obstacleY;        // Koordinat objek penghalang
const int OBSTACLE_SPEED = 1;    // Kecepatan gerak objek penghalang

void setup() {
  Serial.begin(9600);
  pinMode(BUTTON_UP_PIN, INPUT_PULLUP);
  pinMode(BUTTON_DOWN_PIN, INPUT_PULLUP);
  pinMode(BUZZER_PIN, OUTPUT);
  pinMode(LED_PIN, OUTPUT);
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  randomSeed(analogRead(0));
  initGame();
}

void loop() {
  readInput();
  moveObstacle();
  checkCollision();
  updateDisplay();
  delay(100);
}

void initGame() {
  playerX = SCREEN_WIDTH / 2;
  playerY = SCREEN_HEIGHT / 2;
  obstacleX = random(0, SCREEN_WIDTH - OBSTACLE_SIZE);
  obstacleY = random(0, SCREEN_HEIGHT - OBSTACLE_SIZE);
}

void readInput() {
  // Baca input dari push button
  if (digitalRead(BUTTON_UP_PIN) == LOW) {
    playerY--;
  } else if (digitalRead(BUTTON_DOWN_PIN) == LOW) {
    playerY++;
  }
}

void moveObstacle() {
  // Gerakkan objek penghalang secara horizontal
  obstacleX += OBSTACLE_SPEED;
  if (obstacleX >= SCREEN_WIDTH) {
    obstacleX = -OBSTACLE_SIZE;
    obstacleY = random(0, SCREEN_HEIGHT - OBSTACLE_SIZE);
  }
}

void checkCollision() {
  // Periksa tabrakan antara pemain dan objek penghalang
  if (playerX < obstacleX + OBSTACLE_SIZE &&
      playerX + PLAYER_SIZE > obstacleX &&
      playerY < obstacleY + OBSTACLE_SIZE &&
      playerY + PLAYER_SIZE > obstacleY) {
    // Jika terjadi tabrakan
    // Aktifkan LED dan buzzer untuk beberapa saat
    for (int i = 0; i < 5; i++) {
      digitalWrite(LED_PIN, HIGH);
      tone(BUZZER_PIN, 1000);
      delay(100);
      digitalWrite(LED_PIN, LOW);
      noTone(BUZZER_PIN);
      delay(100);
    }
    // Inisialisasi ulang permainan setelah tabrakan
    initGame();
  }
}

void updateDisplay() {
  // Hapus tampilan sebelumnya
  display.clearDisplay();
  
  // Gambar pemain
  display.fillRect(playerX, playerY, PLAYER_SIZE, PLAYER_SIZE, SSD1306_WHITE);
  
  // Gambar objek penghalang
  display.fillRect(obstacleX, obstacleY, OBSTACLE_SIZE, OBSTACLE_SIZE, SSD1306_WHITE);
  
  // Tampilkan perubahan pada layar OLED
  display.display();
}