#include <SPI.h> //for IIC -Inter intergrated circuit
#include <Wire.h>
#include <Adafruit_GFX.h> // for graphic
#include <Adafruit_SSD1306.h> //for oled screen

#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)
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
// no need to change, always as default

#define LOGO_HEIGHT   32
#define LOGO_WIDTH    32

// 'DINO', 32x32px
const unsigned char bitmap_DINO [] PROGMEM = {
	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
	0x00, 0x00, 0x3f, 0xf0, 0x00, 0x00, 0xef, 0xfc, 0x00, 0x00, 0xef, 0xfc, 0x00, 0x00, 0xff, 0xfc, 
	0x00, 0x00, 0xff, 0xfc, 0x00, 0x00, 0xff, 0xfc, 0x00, 0x00, 0xff, 0xfc, 0x00, 0x00, 0xfe, 0x00, 
	0x00, 0x00, 0xff, 0xe0, 0x0c, 0x00, 0xff, 0xe0, 0x0c, 0x01, 0xfc, 0x00, 0x0c, 0x07, 0xfc, 0x00, 
	0x0e, 0x1f, 0xff, 0x00, 0x0f, 0x1f, 0xff, 0x00, 0x0f, 0xff, 0xff, 0x00, 0x0f, 0xff, 0xfc, 0x00, 
	0x0f, 0xff, 0xfc, 0x00, 0x0f, 0xff, 0xfc, 0x00, 0x03, 0xff, 0xf0, 0x00, 0x03, 0xff, 0xf0, 0x00, 
	0x00, 0x7f, 0xe0, 0x00, 0x00, 0x7f, 0xc0, 0x00, 0x00, 0x7d, 0xc0, 0x00, 0x00, 0x78, 0xc0, 0x00, 
	0x00, 0x78, 0xc0, 0x00, 0x00, 0x60, 0xc0, 0x00, 0x00, 0x78, 0xf0, 0x00, 0x00, 0x00, 0x00, 0x00
};

int pos_x = 127;

bool game = true;

unsigned long dur_t, start_t;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(3, INPUT_PULLUP);
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3c, safety precheck
    Serial.println(F("SSD1306 allocation failed"));
    while(true){} // Don't proceed, loop forever
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  while(game == true){
    display.clearDisplay();
    pos_x--;
    if(pos_x < 1){pos_x = 127;}
    testfillrect(pos_x);
    
    if(digitalRead(3)==LOW){
      testdrawbitmap(0);
    }
    else if(digitalRead(3) != LOW){
      testdrawbitmap(32);
    }
    display.display();

  
    }


  }

  


void testdrawbitmap(int dino_height) {
  display.drawBitmap(0, dino_height, bitmap_DINO, LOGO_WIDTH, LOGO_HEIGHT, 1);
}

void testfillrect(int x) {
  display.fillRect(x, 52, 5, 12, SSD1306_INVERSE);
}

void showWord(){
  display.setTextSize(1);      // Normal 1:1 pixel scale
  display.setTextColor(SSD1306_WHITE); // Draw white text
  display.setCursor(40, 25);
  display.print("GAME OVER");
}

unsigned long counting(int pin){
  start_t = millis();
  while(digitalRead(pin) == LOW){
    //do nothing
  }
  return millis() - start_t;
}