//======================================================
//  OLED DISPLAY
//======================================================
//  LIBRARY INCLUDE
//------------------------------------------------------
  
  // Include Libraries
  #include  <Wire.h>
  #include  <SSD1306Wire.h>

  // Display Instance
  SSD1306Wire display(0x3c, 21, 22);

//------------------------------------------------------
//  OLED INITIALIZATION
//------------------------------------------------------

  void OLED_INIT() {
    display.init();
    display.flipScreenVertically();
    display.setFont(ArialMT_Plain_10);
  }

//------------------------------------------------------
//  OLED CLEAR DISPLAY
//------------------------------------------------------

  void OLED_CLEAR() {
    display.clear();
  }

//------------------------------------------------------
//  OLED CLEAN DISPLAY
//------------------------------------------------------

  void OLED_CLEAN() {
    OLED_CLEAR();
    OLED_SHOW();
  }

//------------------------------------------------------
//  OLED SHOW NEW DATA
//------------------------------------------------------

  void OLED_SHOW() {
    display.display();
  }

//------------------------------------------------------
//  OLED DISPLAY KICKER WELCOME MESSAGE
//------------------------------------------------------

  void KICKER_LOGO() {
    // Starting The First Code
    OLED_CLEAR();
    drawTextCenter(128/2, 5, 3, "TAKEONE");
    drawTextCenter(128/2, 30, 1, " - T E C H N O L O G Y - ");
    drawTextCenter(128/2, 43, 2, "<< KICKER >>");
    OLED_SHOW();
  }

//------------------------------------------------------
//  OLED DISPLAY KICKER POWERING OFF MESSAGE
//------------------------------------------------------

  void OLED_POWERING_DOWN() {
    dualcomm(POWEROFF);
    OLED_CLEAR();
    drawTextCenter(128/2, 5, 3, "POWER");
    drawTextCenter(128/2, 30, 1, "- T U R N I N G  O F F -");
    drawTextCenter(128/2, 43, 2, "SEE YOU AGAIN");
    OLED_SHOW();
    BOOST_OFF;
    delay(2000);
    OLED_CLEAN();
    delay(250);
    POWER_OFF;
  }

//------------------------------------------------------
//  OLED Display Text
//------------------------------------------------------

  void drawTextFlowDemo(String Text) {
    display.setFont(ArialMT_Plain_10);
    display.setTextAlignment(TEXT_ALIGN_LEFT);
    display.drawStringMaxWidth(0, 0, 128, Text);
  }

//------------------------------------------------------
//  OLED LEFT TEXT Display
//------------------------------------------------------

  void drawTextLeft() {
    display.setFont(ArialMT_Plain_10);
    display.setTextAlignment(TEXT_ALIGN_LEFT);
    display.drawString(0, 10, "Left aligned (0,10)");
  }

//------------------------------------------------------
//  OLED CENTER TEXT Display
//------------------------------------------------------

  void drawTextCenter(int X, int Y, int Size, String Text) {
    //display.setFont(ArialMT_Plain_10);
    
    if(Size == 1) {
      display.setFont(ArialMT_Plain_10);
    } else if(Size == 2) {
      display.setFont(ArialMT_Plain_16);
    } else if(Size == 3) {
      display.setFont(ArialMT_Plain_24);
    } else {
      display.setFont(ArialMT_Plain_10);
    }
    
    display.setTextAlignment(TEXT_ALIGN_CENTER);
    display.drawString(X, Y, Text);
  }

//------------------------------------------------------
//  OLED RIGHT TEXT DISPLAY
//------------------------------------------------------

  // OLED Display
  void drawTextRight() {
    display.setFont(ArialMT_Plain_10);
    display.setTextAlignment(TEXT_ALIGN_RIGHT);
    display.drawString(128, 33, "Right aligned (128,33)");
  }

//------------------------------------------------------
//  OLED DRAW RECTANGLE
//------------------------------------------------------
  
  void drawRectDemo() {
    // Draw a pixel at given position
    for (int i = 0; i < 10; i++) {
      display.setPixel(i, i);
      display.setPixel(10 - i, i);
    }
      display.drawRect(12, 12, 20, 20);
  
      // Fill the rectangle
      display.fillRect(14, 14, 17, 17);
  
      // Draw a line horizontally
      display.drawHorizontalLine(0, 40, 20);
  
      // Draw a line horizontally
      display.drawVerticalLine(40, 0, 20);
  }

//------------------------------------------------------
//  OLED DRAW CIRCLE
//------------------------------------------------------
  
  void drawCircleDemo() {
    for (int i=1; i < 8; i++) {
      display.setColor(WHITE);
      display.drawCircle(32, 32, i*3);
      if (i % 2 == 0) {
        display.setColor(BLACK);
      }
      display.fillCircle(96, 32, 32 - i* 3);
    }
  }

//------------------------------------------------------
//  OLED DRAW PROGRESS BAR
//------------------------------------------------------

  void drawProgressBarDemo(int Value) {
    int progress = Value;
    // draw the progress bar
    display.drawProgressBar(0, 50, 120, 10, progress);
  
    // draw the percentage as String
    display.setTextAlignment(TEXT_ALIGN_CENTER);
    display.drawString(64, 35, String(progress) + "%");
  }

//------------------------------------------------------
//  I2C DECIVES SCANNER
//------------------------------------------------------

  void scanI2C() 
  {
    byte error, address;
    int nDevices;
  
    Serial.println(" -> Scanning I2C Devices ...");
  
    nDevices = 0;
    for(address = 1; address < 127; address++ ) 
    {
      // The i2c_scanner uses the return value of
      // the Write.endTransmisstion to see if
      // a device did acknowledge to the address.
      Wire.beginTransmission(address);
      error = Wire.endTransmission();
  
      if (error == 0)
      {
        Serial.print(" --> Device Found At Address 0x");
        if (address<16) 
          Serial.print("0");
        Serial.print(address,HEX);
        Serial.println("  !");
  
        nDevices++;
      }
      else if (error==4) 
      {
        Serial.print(" --> Unknown error at address 0x");
        if (address<16) 
          Serial.print("0");
        Serial.println(address,HEX);
      }    
    }
    if (nDevices == 0)
      Serial.println(" --> No I2C devices found\n");
    else
      Serial.println(" --> done");
  }

//------------------------------------------------------
//  WAITING FOR BLUETOOTH CONNECTION
//------------------------------------------------------

  void OLED_BLUETOOTH_MODE() 
  {
    // Starting The First Code
    OLED_CLEAR();
    drawTextCenter(128/2, 5, 3, "KICKER");
    drawTextCenter(128/2, 30, 1, " - B L U E T O O T H - ");
    if(BLUETOOTH_STATUS == true) {
      drawTextCenter(128/2, 43, 2, "< CONNECTED >");
    } else {
      drawTextCenter(128/2, 43, 2, "< WAITING >");
    }
    OLED_SHOW();
  }

//------------------------------------------------------
//  WAITING FOR BLUETOOTH CONNECTION
//------------------------------------------------------

  void OLED_STANDALONE_MODE() 
  {
    // Starting The First Code
    OLED_CLEAR();
    drawTextCenter(128/2, 5, 3, "KICKER");
    drawTextCenter(128/2, 30, 1, " - S T A N D A L O N E - ");
    drawTextCenter(128/2, 43, 2, "< MODE >");
    OLED_SHOW();
  }

//------------------------------------------------------
//  GAME SLIDER SELECTOR
//------------------------------------------------------

  void GAME_PAGE(uint8_t MenuNumber, String Title) {
    if(DISPLAY_CHANGED == false) {
      OLED_CLEAR();
      drawTextCenter(128/2, 5, 3, "< GAME #" + String(MenuNumber) >);
      drawTextCenter(128/2, 30, 1, " - " + Title + " - ");
      drawTextCenter(128/2, 43, 2, "<< SELECT >>");
      OLED_SHOW();
      DISPLAY_CHANGED = true;
    }
  }