#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
 
 
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels
 
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
// The pins for I2C are defined by the Wire-library.
// On an arduino UNO:       A4(SDA), A5(SCL)
// On an arduino MEGA 2560: 20(SDA), 21(SCL)
// On an arduino LEONARDO:   2(SDA),  3(SCL), ...
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
#define SCREEN_ADDRESS 0x3C ///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
 
//Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &SPI);
  //uint8_t w, uint8_t h, SPIClass *spi_ptr,
    //                               int8_t dc_pin, int8_t rst_pin, int8_t cs_pin,
      //                             uint32_t bitrate)
 
//reference state

int button_pin = 2;

void draw_first_shape(){
  display.clearDisplay();
 
}



void setup() {
  // put your setup code here, to run once:
 
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS);
 
 pinMode(button_pin,INPUT_PULLUP);
  //for usb communication  
  Serial.begin(115200);
 
 
 delay(2000);
  // Show initial display buffer contents on the screen --
  // the library initializes this with an Adafruit splash screen.
 
  // Clear the buffer
  display.clearDisplay();
 
  display.setTextSize(1);             // Normal 1:1 pixel scale
  display.setTextColor(SSD1306_WHITE);        // Draw white text
  display.setCursor(0,0);             // Start at top-left corner
  display.println(F(" "));
  display.display();
  delay(2000);
  display.clearDisplay();
   display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(6, 6);
  // Display static text
  
  display.drawRoundRect(10 , 60 , 10, 5 , 1 , WHITE);
  display.drawFastHLine(12, 62, 2, WHITE);
  display.drawFastHLine(18, 62, 2, WHITE);
  display.display();
  delay(2000);
  display.startscrollright(0x00, 0x0F);
  delay(200);
  display.stopscroll();
  delay(100);
  display.startscrollleft(0x00, 0x0F);
  delay(200);
  display.stopscroll();
  delay(100);

  display.fillRoundRect(5 , 5 , 100, 50 , 5 , WHITE);
  display.fillTriangle(20,55, 30, 55, 18,58, WHITE);
  display.display();
  delay(2000);
  display.setTextColor(INVERSE);
  display.println("Hello!");
  display.display();
  delay(2000);
  display.println("My name is Lite, and I'll be your lil descktop robot for a bit, nice to meet you!");
  display.display();
  delay(200);

}

void loop() {
   display.clearDisplay();
  delay(1000);


 }