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

#define PIN_JOYSTICK_HORZ A0
#define PIN_JOYSTICK_VERT A1
#define PIN_JOYSTICK_SEL 2

#define PIN_OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)

static const unsigned char PROGMEM BITMAP_SOURCE[] = {
  B00000000,
  B00111100,
  B01000010,
  B01000010,
  B01111110,
  B01000010,
  B01000010,
  B00000000,
};

Adafruit_SSD1306 display(128, 64, &Wire, PIN_OLED_RESET);

void setup() {
  setupOled();
  // Serial.begin(9600); used to output debug info like Serial.println("...");
}

void setupOled() {
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();

  display.drawBitmap(0, 0, BITMAP_SOURCE, 8, 8, 1);
  display.drawBitmap(8, 0, BITMAP_SOURCE, 8, 8, 1);
  display.drawBitmap(0, 8, BITMAP_SOURCE, 8, 8, 1);
  display.drawBitmap(8, 8, BITMAP_SOURCE, 8, 8, 1);


  display.display();
}

void loop() {
  int x = analogRead(PIN_JOYSTICK_HORZ);
  int y = analogRead(PIN_JOYSTICK_VERT);
  bool is_down = digitalRead(PIN_JOYSTICK_SEL) == HIGH;

  //updateDisplay(x, y, is_down);
  delay(3000);
}

void updateDisplay(int x, int y, bool is_down) {
  // oled.clear();

  // oled.setCursor(0, 0);

  // oled.print(F("("));
  // oled.print(x);
  // oled.print(F(", "));
  // oled.print(y);
  // oled.print(F("), "));

  // if (is_down) {
  //   oled.print(F("^  "));
  // }
  // else {
  //   oled.print(F("v  "));
  // }

  // oled.switchFrame();
}