//YWROBOT
//Compatible with the Arduino IDE 1.0
//Library version:1.1
#include <LiquidCrystal_I2C.h>
#include "JC_Button.h"
LiquidCrystal_I2C lcd(0x27,20,4);  // set the LCD address to 0x27 for a 16 chars and 2 line display

int modepin = 9;
int parapin = 8;
int modesta = LOW;
int parasta = LOW;

int pin100 = 12;
int pin010 = 11;
int pin001 = 10;
int sta100 = HIGH;
int sta010 = HIGH;
int sta001 = HIGH;

Button my100(pin100);
Button my010(pin010);
Button my001(pin001);


uint8_t backslash[8] = {
  0b00000,
  0b10000,
  0b01000,
  0b00100,
  0b00010,
  0b00001,
  0b00000,
  0b00000,
};
const char *loopChars = "-\x03|/";
int i;
int imax;
unsigned long curTime;
unsigned long myTime;
const long myInterval = 80;

int i001=0;
int i010=0;
int i100=0;
int curval=0;

void clrIndicator()
{
  lcd.setCursor(0, 0);
  lcd.print("\xFF");
  lcd.setCursor(0, 1);
  lcd.print("\xFF");
}

void setup()
{
  pinMode(modepin, INPUT_PULLUP);
  pinMode(parapin, INPUT_PULLUP);

  Serial.begin(115200);
  lcd.init();                      // initialize the lcd
  lcd.createChar(3, backslash);
  // Print a message to the LCD.
  lcd.backlight();
  lcd.setCursor(4, 3);
  lcd.print("Hello, world!");
  imax = strlen(loopChars);
  clrIndicator();

  pinMode(pin100, INPUT_PULLUP);
  pinMode(pin010, INPUT_PULLUP);
  pinMode(pin001, INPUT_PULLUP);

  my100.begin();
  my010.begin();
  my001.begin();
}

void loop()
{
  int imodesta = digitalRead(modepin);
  int iparasta = digitalRead(parapin);
  int ichk;
  curTime = millis();

  bool refresh = (imodesta != modesta);

  if (refresh) {
    modesta = imodesta;
    if (modesta == LOW) {
      clrIndicator();
    }
    Serial.print(modesta);
    Serial.print(" | ");
    Serial.println(parasta);
  }
  else {
    if (modesta == HIGH || refresh) {
      if (modesta == HIGH){
        chkTime();
        //curval = chk100Up();
        ichk = chkXXXup();
        if(ichk != curval){
          curval = ichk;
          lcd.setCursor(0,2);
          lcd.print(curval);
          Serial.println(curval);
        }
      }
      if (iparasta != parasta) {
        lcd.setCursor(0, 1);
        parasta = iparasta;
        lcd.print(parasta);
        Serial.print(modesta);
        Serial.print(" | ");
        Serial.println(parasta);
      }
      //Serial.println(curval);
    }
  }
}

int chkXXXup()
{
  my100.read();
  my010.read();
  my001.read();
  if(my001.wasReleased()){
    i001++;
    if (i001 >= 10) i001 = 0;
  }
  if(my010.wasReleased()){
    i010++;
    if (i010 >= 10) i010 = 0;
  }
  if(my100.wasReleased()){
    i100++;
    if (i100 >= 10) i100 = 0;
  }
  return (100*i100+10*i010+i001);
}

/*
int chk100Up()
{
  int value;
  value = digitalRead(pin001);
  if (sta001 != value) {
    sta001 = value;
    if(sta001 == HIGH){
      i001++;
      if (i001 >= 10) i001 = 0;
    }
  }
  value = digitalRead(pin010);
  if (sta010 != value) {
    sta010 = value;
    if(sta010 == HIGH){
      i010++;
      if (i010 >= 10) i010 = 0;
    }
  }
  value = digitalRead(pin100);
  if (sta100 != value) {
    sta100 = value;
    if(sta100 == HIGH){
      i100++;
      if (i100 >= 10) i100 = 0;
    }
  }
  return (100*i100+10*i010+i001);
}
*/
  void chkTime()
  {
      if (curTime - myTime >= myInterval) {
        myTime = curTime;
        lcd.setCursor(0, 0); lcd.print(loopChars[i]);
        i++;
        if (i == imax)
          i = 0;
      }
  }