/*
  A simple Pong game.
  https://notabug.org/Maverick/WokwiPong
  
  Based on Arduino Pong by eholk
  https://github.com/eholk/Arduino-Pong
*/
#include <EEPROM.h>
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
Adafruit_SSD1306 display = Adafruit_SSD1306(128, 64, &Wire);

int score0;
int score1;
int player;
unsigned char level = 2;

void setup() 
{
  InitEprom();
  score0 = 0;
  score1 = 0;
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  display.setTextColor(WHITE, BLACK);
  display.setCursor(0, 0);
}

void loop() 
{
  SaveScore(0, score0); 
  SaveScore(1, score1); 
  print_scores();
//  display.clearDisplay();
//  display.setCursor(0, 0);
//  display.print(score);
//  display.display();    
//  for(;;);
  score0 = score0 + level;
  score1 = score1 + level;
}

void print_scores() {
  char score_string0[5];
  char score_string1[5];
  ultoa(ReadScore(0), score_string0, 10);
  itoa(ReadScore(1), score_string1, 10);
  display.clearDisplay();
  display.setCursor(0, 0);
  display.write(score_string0);
  display.setCursor(25, 0);
  display.write(score_string1);
  display.display();
}

// Read score from non volatile memory
unsigned char ReadScore(unsigned char player){
  return(EEPROM.read(player));
}

void SaveScore(unsigned char player, unsigned char score){
  if (score > ReadScore(player)){
    EEPROM.update(player, score);
  }
}
void InitEprom(){
  EEPROM.update(0, 0);
  EEPROM.update(1, 0);
}