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

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

// Указываем пины SDA и SCL для Raspberry Pi Pico
#define PIN_SDA 4
#define PIN_SCL 5

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

float pupilX = 64, pupilY = 32;
float targetX = 64, targetY = 32;
float blinkState = 0;
float blinkSpeed = 0.35;
bool isBlinking = false;
unsigned long nextBlinkTime = 0;

void setup() {
  // Инициализация I2C на нужных пинах Pico
  Wire.setSDA(PIN_SDA);
  Wire.setSCL(PIN_SCL);
  Wire.begin();

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    for(;;); // Если экран не найден, стоп
  }
  
  display.clearDisplay();
  nextBlinkTime = millis() + 2000;
}

void drawRealisticEye(float x, float y, float blink) {
  display.fillEllipse(64, 32, 58, 28, SSD1306_WHITE); 
  display.fillCircle(x, y, 20, SSD1306_BLACK);
  display.fillCircle(x, y, 9, SSD1306_WHITE);
  display.fillCircle(x, y, 8, SSD1306_BLACK);
  display.fillCircle(x - 6, y - 7, 4, SSD1306_WHITE);
  display.fillCircle(x + 8, y + 6, 2, SSD1306_WHITE);

  int lidHeight = blink * 32; 
  display.fillRect(0, 0, 128, lidHeight, SSD1306_BLACK);
  display.fillEllipse(64, lidHeight - 2, 75, 25, SSD1306_BLACK);
  
  int bottomLidHeight = blink * 10; 
  display.fillRect(0, 64 - bottomLidHeight, 128, bottomLidHeight, SSD1306_BLACK);
  display.fillEllipse(64, 66 - bottomLidHeight, 75, 20, SSD1306_BLACK);

  display.fillTriangle(0,0, 40,0, 0,32, SSD1306_BLACK);
  display.fillTriangle(128,0, 88,0, 128,32, SSD1306_BLACK);
  display.fillTriangle(0,64, 40,64, 0,32, SSD1306_BLACK);
  display.fillTriangle(128,64, 88,64, 128,32, SSD1306_BLACK);
}

void loop() {
  display.clearDisplay();

  if (millis() > nextBlinkTime && !isBlinking) {
    isBlinking = true;
  }

  if (isBlinking) {
    blinkState += blinkSpeed;
    if (blinkState >= 1.0) {
      blinkState = 1.0;
      blinkSpeed = -0.25;
    }
    if (blinkState <= 0) {
      blinkState = 0;
      isBlinking = false;
      blinkSpeed = 0.35;
      nextBlinkTime = millis() + random(1500, 6000);
    }
  }

  if (!isBlinking && random(200) > 196) {
    targetX = 64 + random(-18, 18);
    targetY = 32 + random(-10, 10);
  }
  
  pupilX += (targetX - pupilX) * 0.15;
  pupilY += (targetY - pupilY) * 0.15;

  drawRealisticEye(pupilX, pupilY, blinkState);
  display.display();
  delay(10); 
}