#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include "numbers.h"

#define WIDTH  128 // y
#define HEIGHT 64 // x // use 32 for 128x32
#define STARTy 32 // horizontal, right column is 0
#define STARTx  0 // vertical, top row is 0
#define OLED_RESET -1
#define OLED_I2C 0x3C
Adafruit_SSD1306 display(WIDTH, HEIGHT, &Wire, OLED_RESET);

unsigned long timer, timeout = 1000; // one second wait

void setup() {
  Serial.begin(9600);
  display.begin(SSD1306_SWITCHCAPVCC, OLED_I2C);
  display.clearDisplay();  // Clear the display buffer.
}

void loop() {
  // if (millis() - timer > timeout) { // one second wait
  //   timer = millis();
  for (int i = 0; i < 10; i++) {
    switch (i) {
      case 0: zro(); break;
      case 1: one(); break;
      case 2: two(); break;
      case 3: tre(); break;
      case 4: fur(); break;
      case 5: fiv(); break;
      case 6: six(); break;
      case 7: svn(); break;
      case 8: egt(); break;
      case 9: nin(); break;
    }
    display.display();
    delay(1000);
    display.clearDisplay();  // Clear the display buffer.
  }
}

void zro() {
  display.drawBitmap(  // place bitmap in screen buffer
    STARTx,            // start x of bitmap
    STARTy,            // start y of bitmap
    epd_bitmap_0,      // title of bitmap
    WIDTH,             // width of display
    HEIGHT,            // height of display
    WHITE);            // color of pixels (WHITE or BLACK, 1 or 0)
}

void one() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_1, WIDTH, HEIGHT, WHITE);
}
void two() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_2, WIDTH, HEIGHT, WHITE);
}
void tre() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_3, WIDTH, HEIGHT, WHITE);
}
void fur() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_4, WIDTH, HEIGHT, WHITE);
}
void fiv() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_5, WIDTH, HEIGHT, WHITE);
}
void six() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_6, WIDTH, HEIGHT, WHITE);
}
void svn() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_7, WIDTH, HEIGHT, WHITE);
}
void egt() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_8, WIDTH, HEIGHT, WHITE);
}
void nin() {
  display.drawBitmap(STARTx, STARTy, epd_bitmap_9, WIDTH, HEIGHT, WHITE);
}