code

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
//#include <SD.h> -THE PROBLEM-
//#include <SPI.h>

//A5/A4 I2C OLED
/////////////////OPT means options, making a opttions menu/////////////////

int CS_PIN = 10;
int opt[][4] = {{2,0,28,28},
               {48,0,28,28},
               {94,0,28,28},
               {2,34,28,28},
               {48,34,28,28},
               {94,34,28,28}};
int buttons = 2;
int shift = 1;
int preshift = 1;
#define OLED_RESET 4
Adafruit_SSD1306 display(OLED_RESET);

void setup() {
  pinMode(A0, INPUT_PULLUP);
  pinMode(A1, INPUT_PULLUP);

  Serial.begin(9600);
  Wire.begin();
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setTextSize(1);
  display.setCursor(32,24);
  display.clearDisplay();
  drawOpt();
  display.display();
}

void loop() {
  //LEFT = 0 DOWN = 1 UP = 2 MIDDLE = 3 RIGHT = 4 // READ FROM LEFT TO RIGHT //
  //if(analogRead(A0) < 18) Serial.println("left");                                  // LEFT
  //if(50 > analogRead(A0) and analogRead(A0) > 22 ) Serial.println("down");          DOWN
  //if(analogRead(A1) < 50 ) Serial.println("up");                                    UP
  //if(985 > analogRead(A1) and analogRead(A1) > 900 ) Serial.println("middle");      MIDDLE
  //if(1000 > analogRead(A1) and analogRead(A1) > 990) Serial.println("right");      // RIGHT

  ///////////////////////////////////////////// JUST A WEIRD WAY OF GETTING 5/4 INPUTS FROM 2 ANALOG PINS //////////////////////////////////
  if(1000 > analogRead(A1) and analogRead(A1) > 990) shift = shift+1; // RIGHT //
  else if(analogRead(A0) < 18) shift = shift-1; // LEFT //
  else if(analogRead(A1) < 50  and shift > 3) shift = shift-3; // UP //
  else if(50 > analogRead(A0) and analogRead(A0) > 22 and shift < 4) shift = shift+3; // DOWN //
  if(shift == 0) shift = 6;
  else if(shift == 7) shift = 1;
  ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


  if(preshift != shift){
    preshift = shift;
    display.clearDisplay();
    drawOpt();
    display.display();
    drawSelectRect(opt[(shift-1)][0],opt[(shift-1)][1],opt[(shift-1)][2],opt[(shift-1)][3]);
    Serial.println(opt[(shift-1)][0]);
  }
}









//x and y = top left corner position. //
void drawRect(int x, int y, int width, int height) {

  for(int X = x; X < (x+width+1); X=X+1) display.drawPixel(X,y, WHITE);
  for(int Y = y; Y < (y+height+1); Y=Y+1) display.drawPixel(x,Y, WHITE);
  for(int X = x; X < (x+width+1); X=X+1) display.drawPixel(X,(y+height), WHITE);
  for(int Y = y; Y < (y+height+1); Y=Y+1) display.drawPixel((x+height),Y, WHITE);

  }

void drawSelectRect(int x, int y, int width, int height) {
  for(int X = (x+1); X < (x+width); X=X+1) display.drawPixel(X,(y+1), WHITE);
  for(int X = (x+1); X < (x+width); X=X+1) display.drawPixel(X,(y+height-1), WHITE);
  for(int X = (x+1); X < (x+width); X=X+1) display.drawPixel(X,(y+2), WHITE);
  for(int X = (x+1); X < (x+width); X=X+1) display.drawPixel(X,(y+height-2), WHITE);
  display.display();
  }


void drawOpt() {
  drawRect(opt[0][0],opt[0][1],opt[0][2],opt[0][3]);
  drawRect(opt[1][0],opt[1][1],opt[1][2],opt[1][3]);
  drawRect(opt[2][0],opt[2][1],opt[2][2],opt[2][3]);
  drawRect(opt[3][0],opt[3][1],opt[3][2],opt[3][3]);
  drawRect(opt[4][0],opt[4][1],opt[4][2],opt[4][3]);
  drawRect(opt[5][0],opt[5][1],opt[5][2],opt[5][3]);
  }