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

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1

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

void setup() {
  Serial.begin(9600);
  Serial.println("Starting OLED Eyes...");
  
  // Try to initialize display at address 0x3C
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println("SSD1306 allocation failed");
    // Try alternate address
    if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3D)) {
      Serial.println("Failed at 0x3D too");
      for(;;); // Don't proceed, loop forever
    }
  }
  
  Serial.println("Display initialized!");
  display.clearDisplay();
  display.display();
}

void loop() {
  // Clear display
  display.clearDisplay();
  
  // Draw left eye
  display.fillCircle(40, 32, 18, SSD1306_WHITE);  // White circle
  display.fillCircle(40, 32, 16, SSD1306_BLACK);  // Black inner
  display.fillCircle(45, 32, 8, SSD1306_WHITE);   // White pupil
  
  // Draw right eye
  display.fillCircle(88, 32, 18, SSD1306_WHITE);  // White circle
  display.fillCircle(88, 32, 16, SSD1306_BLACK);  // Black inner
  display.fillCircle(93, 32, 8, SSD1306_WHITE);   // White pupil
  
  display.display();
  delay(1000);
  
  // Blink
  display.clearDisplay();
  // Draw closed eyes
  display.drawLine(25, 32, 55, 32, SSD1306_WHITE);
  display.drawLine(73, 32, 103, 32, SSD1306_WHITE);
  display.display();
  delay(150);
  
  // Look left
  display.clearDisplay();
  display.fillCircle(40, 32, 18, SSD1306_WHITE);
  display.fillCircle(40, 32, 16, SSD1306_BLACK);
  display.fillCircle(35, 32, 8, SSD1306_WHITE);
  
  display.fillCircle(88, 32, 18, SSD1306_WHITE);
  display.fillCircle(88, 32, 16, SSD1306_BLACK);
  display.fillCircle(83, 32, 8, SSD1306_WHITE);
  display.display();
  delay(1000);
  
  // Look right
  display.clearDisplay();
  display.fillCircle(40, 32, 18, SSD1306_WHITE);
  display.fillCircle(40, 32, 16, SSD1306_BLACK);
  display.fillCircle(45, 32, 8, SSD1306_WHITE);
  
  display.fillCircle(88, 32, 18, SSD1306_WHITE);
  display.fillCircle(88, 32, 16, SSD1306_BLACK);
  display.fillCircle(93, 32, 8, SSD1306_WHITE);
  display.display();
  delay(1000);
}