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

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

Adafruit_SSD1306 display2(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);  
// Right eye display object

// === Eye Size and Center Position ===
int eyeX2 = 44;                        // X-position of eye (centered)
int eyeY2 = 12;                        // Y-position of eye (centered)
int eyeWidth2 = 40;
int eyeHeight2 = 40;

// === Eye Movement Variables ===
int targetOffsetX2 = 0;
int targetOffsetY2 = 0;
int moveSpeed2 = 3;

// === Blinking Logic ===
int blinkState2 = 0;
int blinkDelay2 = 4000;
unsigned long lastBlinkTime2 = 0;
unsigned long moveTime2 = 0;

void setup() {
  display2.begin(SSD1306_SWITCHCAPVCC, 0x3C);  // Use 0x3D if second display has different address
  display2.display();
  delay(1000);
  display2.clearDisplay();
}

void loop() {
  unsigned long currentTime = millis();

  // === Blink Start ===
  if (currentTime - lastBlinkTime2 > blinkDelay2 && blinkState2 == 0) {
    blinkState2 = 1;
    lastBlinkTime2 = currentTime;
  }

  // === Blink End ===
  if (currentTime - lastBlinkTime2 > 150 && blinkState2 == 1) {
    blinkState2 = 0;
    lastBlinkTime2 = currentTime;
  }

  // === Random Movement Trigger ===
  if (currentTime - moveTime2 > random(1500, 3000) && blinkState2 == 0) {
    int direction2 = random(0, 6);
    if (direction2 == 0) {
      targetOffsetX2 = -8;
      targetOffsetY2 = 0;
    } else if (direction2 == 1) {
      targetOffsetX2 = 8;
      targetOffsetY2 = 0;
    } else if (direction2 == 2) {
      targetOffsetX2 = 0;
      targetOffsetY2 = -6;
    } else if (direction2 == 3) {
      targetOffsetX2 = 0;
      targetOffsetY2 = 6;
    } else {
      targetOffsetX2 = 0;
      targetOffsetY2 = 0;
    }
    moveTime2 = currentTime;
  }

  // === Smooth Movement ===
  static int offsetX2 = 0;
  static int offsetY2 = 0;
  offsetX2 += (targetOffsetX2 - offsetX2) / moveSpeed2;
  offsetY2 += (targetOffsetY2 - offsetY2) / moveSpeed2;

  // === Drawing ===
  display2.clearDisplay();

  if (blinkState2 == 0) {
    drawEye2(eyeX2 + offsetX2, eyeY2 + offsetY2, eyeWidth2, eyeHeight2);
  } else {
    display2.fillRect(eyeX2 + offsetX2, eyeY2 + offsetY2 + eyeHeight2 / 2 - 2,
                      eyeWidth2, 4, WHITE);
  }

  display2.display();
  delay(30);
}

// === Custom Function for Right Eye ===
void drawEye2(int x, int y, int w, int h) {
  display2.fillRoundRect(x, y, w, h, 8, WHITE);
}