/*
  Forum: https://forum.arduino.cc/t/i-do-not-read-analog-input-with-millis-function/1310084
  Wokwi: https://wokwi.com/projects/411465414534821889

*/



/***********************************
    Random numbers from 1 to 3

   V 4.0  25 September 2024
   v 5.0  26 September
   v 6.0  1 October
   v 7.0  4 Octobere
   v 8.0  10 October
 ***********************************/

#define WOKWI

#include <Adafruit_GFX.h>

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

#ifdef WOKWI

#define TFT_CS   10
#define TFT_DC   8
#include "Adafruit_ILI9341.h"
Adafruit_ILI9341 display = Adafruit_ILI9341(TFT_CS, TFT_DC);


#else

#include <Adafruit_SSD1331.h>
#define sclk 13
#define mosi 11
#define cs   10
#define rst  9
#define dc   8
Adafruit_SSD1331 display = Adafruit_SSD1331(cs, dc, rst);

#endif



// +++++++++++++ color definition +++++++++
#define BLACK           0x0000
#define BLUE            0x001F
#define RED             0xF800
#define GREEN           0x07E0
#define CYAN            0x07FF
#define MAGENTA         0xF81F
#define YELLOW          0xFFE0
#define WHITE           0xFFFF

// +++++++++++++ functions +++++++++++++++++
void memorizzaDato();
void allarme();
void azzera();
void leggeDato();
void fine();

// +++++++++++++ global variables ++++++++
unsigned long startMillis;
unsigned long currentMillis;
const unsigned long period = 10000;
bool counting;
int count;
int indirizzo = 0;
byte byteUno = 0;
byte byteDue = 0;
int dato;
//int sogliaINF = 0;
//int sogliaSUP = 0;
unsigned long seed;
const byte analogPin = A3;
int valore = 0;
bool uscito1 = false;
bool uscito2 = false;
bool uscito3 = false;
int dimTesto = 7;
int giocate = 0;  // variable for repeat outputs



void setup() {
  Wire.begin();
  display.begin();
  display.fillScreen(GREEN);
  display.setCursor(20, 20); //column, row
  display.setTextColor(WHITE);
  display.setTextSize(2);
  display.print("ver.7");
  display.setCursor(25, 50); //colonna, riga
  display.setTextSize(1);
  display.print("10 ott 24");
  delay(3000);
  Serial.begin(9600);
  counting = true;    //enable counting
  startMillis = millis();
  count = 0;
  unsigned long seed = analogRead(A0);
  for (int i = 1; i <= 3; ++i) {
    delay(50);
    seed += analogRead(A0) * 1024 * i;
  }
  randomSeed(seed);
}

void loop() {
  //currentMillis = millis();
  dato = random(1, 4);
  Serial.println(dato);

  switch (dato) {
    case 1:
      if (uscito1 == false) {
        display.fillScreen(BLACK);
        display.setCursor(30, 5); //column, row
        display.setTextColor(CYAN);
        display.setTextSize(dimTesto);
        display.print("1");
        leggeDato();
        //memorizzaDato();
      }
      uscito1 = true;
      break;

    case 2:
      if (uscito2 == false) {
        display.fillScreen(BLACK);
        display.setCursor(30, 5); //column, row
        display.setTextColor(CYAN);
        display.setTextSize(dimTesto);
        display.print("2");
        leggeDato();
        //memorizzaDato();
      }
      uscito2 = true;
      break;

    case 3:
      dato = 3;
      if (uscito3 == false) {
        display.fillScreen(BLACK);
        display.setCursor(30, 0); //column, row
        display.setTextColor(CYAN);
        display.setTextSize(dimTesto);
        display.print("3");
        leggeDato();
        //memorizzaDato();
      }
      uscito3 = true;
      break;
  }
  azzera();
  fine();
  //allarme();
  //delay(1000);
}

/********************************************************
                  Functions
 ********************************************************/
void leggeDato() {
  currentMillis = millis();
  if (currentMillis - startMillis <= period) { //true until the end of the period
    count++;    //increase count
    //Serial.print(count);
    valore = analogRead(analogPin);
    Serial.print(" ");
    Serial.println(valore);
    delay(100);
  }
  else  //period has ended
    if (counting == true) { //enable counting
      Serial.print(count);
      counting = false;    //block count
    }
}

void memorizzaDato() {
  Wire.beginTransmission(0x50);
  Wire.write(highByte(indirizzo));
  Wire.write(lowByte(indirizzo));
  Wire.write(byte(giocate));
  Wire.endTransmission();
  indirizzo++;
  delay(5);

  // saves data in two consecutive bytes in the 24LC256
  byteUno = ((analogPin >> 8) & 0xFF);
  byteDue = (analogPin & 0xFF);
  Wire.beginTransmission(0x50);
  Wire.write(highByte(indirizzo));
  Wire.write(lowByte(indirizzo));
  Wire.write(byte(byteUno));
  Wire.endTransmission();
  indirizzo++;
  delay(5);
  Wire.beginTransmission(0x50);
  Wire.write(highByte(indirizzo));
  Wire.write(lowByte(indirizzo));
  Wire.write(byte(byteDue));
  Wire.endTransmission();
  indirizzo++;
  delay(5);
  Serial.println(" Stored data");
  if (indirizzo >= 32000) {
    allarme();
  }
}

void azzera() {
  if (uscito1 == true && uscito2 == true && uscito3 == true) {
    uscito1 = false;
    uscito2 = false;
    uscito3 = false;
    giocate = ++giocate;
    display.fillScreen(BLACK);
    display.setCursor(40, 25); //column, row
    display.setTextColor(YELLOW);
    display.setTextSize(5);
    //display.print(giocate);
    Serial.println("--------");
    giocate = giocate++;
    Serial.println("--------");
    Serial.println(giocate);
    Serial.println("--------");
    Serial.println(" ");
  }
}

void allarme() {
  display.fillScreen(RED);
  display.setCursor(5, 20); //column, row
  display.setTextColor(WHITE);
  display.setTextSize(2);
  display.print("Memory full");
  while (1);
}

void fine() {
  delay(1000);
  if (giocate > 10) {
    display.fillScreen(RED);
    display.setCursor(25, 20); //column, row
    display.setTextColor(WHITE);
    display.setTextSize(2);
    display.print("End");
    Serial.println(" End");
    while (1);
  }
}