/*
0(abcdef)
1(bc)
2(abdeg)
3(abcdg)
4(bcfg)
5(acdfg)
6(cdefg)
7(abc)
8(abcdefg)
9(abcfg)
*/

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


#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);


#define segR  3
#define sh  22 //short line segment (22 - defult)
#define lg  56 //long line segment (56 - defult)
#define thk  6 //thick line segment (5 - defult)
#define disp1 3
#define disp2 5
#define disp3 6
#define disp4 9 

int disp1St;
int disp2St;
int disp3St;
int disp4St;

const int timer = 1000;   
const int count = 6; 
const int dispCount = 4;

const int button1Pin = 2;  // the number of the pushbutton pin
const int led1Pin = disp1;    // the number of the LED pin
int button1State = 0;  // variable for reading the pushbutton status

const int button2Pin = 4;  // the number of the pushbutton pin
const int led2Pin = disp2;    // the number of the LED pin
int button2State = 0;  // variable for reading the pushbutton status


void setup() {
display.begin(SSD1306_SWITCHCAPVCC, 0x3C); // Default OLED address, usually

  // initialize the LED pin as an output:
  pinMode(led1Pin, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(button1Pin, INPUT);


  // initialize the LED pin as an output:
  pinMode(led2Pin, OUTPUT);
  // initialize the pushbutton pin as an input:
  pinMode(button2Pin, INPUT);


pinMode(disp1, OUTPUT);
pinMode(disp2, OUTPUT);
pinMode(disp3, OUTPUT);
pinMode(disp4, OUTPUT);

  digitalWrite(disp1, LOW);
  digitalWrite(disp2, LOW);
  digitalWrite(disp3, LOW);
  digitalWrite(disp4, LOW);

  Serial.begin(9600);

for (int ldng=0; ldng<=count; ldng++){
loading();
 display.clearDisplay();
}

//errMs();

}

void loop() {

numZero();
numOne();
numTwo();
numThree();
numFour();
numFive();
numSix();
numSeven();
numEight();
numNine();

}


void loading(){
  display.clearDisplay();
 segD();
 delay(100);
display.display();
 display.clearDisplay();
 segE();
  delay(100);
display.display();
  display.clearDisplay();
 segF();
  delay(100);
display.display();
  display.clearDisplay();
 segA();
  delay(100);
display.display();
  display.clearDisplay();
 segB();
  delay(100);
display.display();
  display.clearDisplay();
 segC();
  delay(100);
display.display();

  }

  void errMs(){
  display.clearDisplay();
  segA();
  segB();
  segC();
  segD();
  segG();
  display.display();

  display.clearDisplay();
  segB();
  segG();
  display.display();
  
  display.clearDisplay();
  segB();
  segG();
  display.display();

  }






void numZero(){
  display.clearDisplay();
  segA();
  segB();
  segC();
  segD();
  segE();
  segF();
delay(timer);
display.display();
  
}


void numOne(){
  display.clearDisplay();
  segE();
  segF();
  delay(timer);
  display.display();
}

void numTwo(){
  display.clearDisplay();
  segA();
  segB();
  segD();
  segE();
  segG();
  delay(timer);
  display.display();
}

void numThree(){
  display.clearDisplay();
  segA();
  segD();
  segE();
  segF();
  segG();
  delay(timer);
  display.display();
  }

void numFour(){
  display.clearDisplay();
  segC();
  segE();
  segF();
  segG();
  delay(timer);
  display.display();
}

void numFive(){
  display.clearDisplay();
  segA();
  segC();
  segD();
  segF();
  segG();
  delay(timer);
  display.display();
}

void numSix(){
  display.clearDisplay();
  segA();
  segC();
  segD();
  segB();
  segF();
  segG();
  delay(timer);
  display.display();
}

void numSeven(){
  display.clearDisplay();
  segD();
  segE();
  segF();
  delay(timer);
  display.display();
}

void numEight(){
  display.clearDisplay();
  segA();
  segB();
  segC();
  segD();
  segE();
  segF();
  segG();
  delay(timer);
  display.display();
}

void numNine(){
  display.clearDisplay();
   segA();
  segC();
  segD();
  segE();
  segF();
  segG();
  delay(timer);
  display.display();
}


void segA(){
  
      // The INVERSE color is used so round-rects alternate white/black
    display.fillRoundRect (0, 5, thk, sh, segR, SSD1306_INVERSE);

}

void segB(){
    // The INVERSE color is used so round-rects alternate white/black
    display.fillRoundRect (5, 0, lg,thk, segR , SSD1306_INVERSE);

}

void segC(){
    // The INVERSE color is used so round-rects alternate white/black
    display.fillRoundRect (67, 0, lg, thk, segR, SSD1306_INVERSE);

    }

void segD(){
    // The INVERSE color is used so round-rects alternate white/black
    display.fillRoundRect (123, 5, thk, sh, segR, SSD1306_INVERSE);

}

void segE(){
    // The INVERSE color is used so round-rects alternate white/black
    display.fillRoundRect (67, 27, lg, thk, segR, SSD1306_INVERSE);

}

void segF(){
    // The INVERSE color is used so round-rects alternate white/black
    display.fillRoundRect (5, 27, lg, thk, segR , SSD1306_INVERSE);

}

void segG(){

    // The INVERSE color is used so round-rects alternate white/black
   display.fillRoundRect (61, 5, 6, sh, segR, SSD1306_INVERSE);

}