BONGO
CAT

// ═══════════════════════════════════════════════════
//   BONGO CAT — ESP32 + OLED 0.91" + Buzzer Pasivo
//   Arduino Framework · 2026
// ═══════════════════════════════════════════════════

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

// ─── PANTALLA ───
#define SCREEN_WIDTH   128
#define SCREEN_HEIGHT   32
#define OLED_RESET     -1
#define SCREEN_ADDR    0x3C

// ─── PINES ───
#define BTN_L      18
#define BTN_R      19
#define BUZZER     25
#define BUZ_CH     0

// ─── NOTAS ───
#define NOTE_A4  440
#define NOTE_D5  587

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// ─── ESTADO ───
bool lUp = false, rUp = false;
unsigned long lastHit = 0;
const int BEAT = 150;

// ─── BITMAPS DEL GATO (generados con image2cpp) ───
// 4 frames: neutral, brazo izq, brazo der, ambos
const unsigned char PROGMEM catNeutral[] = {
  0x00,0x00,0x07,0xE0,0x00,0x00,0x00,0x00,
  /* ... 248 bytes total para 64x32 bitmap ... */
};
const unsigned char PROGMEM catLeftUp[]  = { /* ... */ };
const unsigned char PROGMEM catRightUp[] = { /* ... */ };
const unsigned char PROGMEM catBothUp[]  = { /* ... */ };

// ─── SETUP ───
void setup() {
  if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDR)) {
    for(;;);  // halt si falla el OLED
  }
  display.clearDisplay();
  display.display();

  pinMode(BTN_L, INPUT_PULLUP);
  pinMode(BTN_R, INPUT_PULLUP);

  // LEDC para PWM del buzzer (ESP32 native)
  ledcSetup(BUZ_CH, 2000, 8);
  ledcAttachPin(BUZZER, BUZ_CH);

  splashScreen();
}

// ─── LOOP ───
void loop() {
  bool btnL = (digitalRead(BTN_L) == LOW);
  bool btnR = (digitalRead(BTN_R) == LOW);
  unsigned long now = millis();

  if (btnL && !lUp) { lUp = true; lastHit = now; ledcWriteTone(BUZ_CH, NOTE_A4); }
  if (btnR && !rUp) { rUp = true; lastHit = now; ledcWriteTone(BUZ_CH, NOTE_D5); }

  if (now - lastHit > BEAT) {
    lUp = rUp = false;
    ledcWriteTone(BUZ_CH, 0);
  }

  drawCat();
  delay(10);
}

// ─── RENDER ───
void drawCat() {
  display.clearDisplay();

  const unsigned char* frame = catNeutral;
  if      (lUp && rUp) frame = catBothUp;
  else if (lUp)        frame = catLeftUp;
  else if (rUp)        frame = catRightUp;

  display.drawBitmap(32, 0, frame, 64, 32, WHITE);

  if (lUp || rUp) {
    display.setTextSize(1);
    display.setTextColor(WHITE);
    display.setCursor(2, 4);  display.print("♪");
    display.setCursor(108, 6); display.print("♫");
  }

  display.display();
}

void splashScreen() {
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(20, 8);  display.println("BONGO CAT :3");
  display.setCursor(16, 20); display.println("tap to play!");
  display.display();
  delay(2000);
}