// Program to demonstrate the MD_Parola library

// MD_MAX72XX library can be found at https://github.com/MajicDesigns/MD_MAX72XX
//
//Using Zones to display counter digits, with intention to apply
//up or down scroll effect on each digit on change

#include <MD_Parola.h>
#include <MD_MAX72xx.h>
#include <SPI.h>

// Define the number of devices we have in the chain and the hardware interface
// NOTE: These pin numbers will probably not work with your hardware and may
// need to be adapted
#define HARDWARE_TYPE MD_MAX72XX::PAROLA_HW
#define MAX_DEVICES 4
#define NUM_ZONES 5

#define CLK_PIN   13//Arduino UNO spi pins
#define DATA_PIN  11
#define CS_PIN    10

// Hardware SPI connection
MD_Parola P = MD_Parola(HARDWARE_TYPE, CS_PIN, MAX_DEVICES);
// Arbitrary output pins
// MD_Parola P = MD_Parola(HARDWARE_TYPE, DATA_PIN, CLK_PIN, CS_PIN, MAX_DEVICES);


// Global variables
char newCount [6] = {"00000"};
char oldCount [6] = {"99999"};
char zonesStr [6] = {"01234"};
char thisWord [15];
const char *nums [10] = {"0","1","2","3","4","5","6","7","8","9"};
const char *letter [27] = {"SPACE","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"};
uint8_t c = 0;
uint8_t letterNum1[5] = {8,5,12,12,15}; 
uint8_t letterNum2[5] = {23,15,18,12,4}; 

uint32_t startTime = 0;
uint16_t count = 0;


void setup(void)
{
  Serial.begin(115200);

  P.begin(NUM_ZONES);
  P.setInvert(false);
  //P.setIntensity(0);//Doesn't work properly here

  // set the zone boundaries
  P.setZone(0, 0, 3);
  P.setIntensity(0);//OK here
  P.setZone(1, 3, 3);
  P.setZone(2, 2, 2);
  P.setZone(3, 1, 1);
  P.setZone(4, 0, 0);
  P.displayClear();
  P.displayReset();

  for (uint8_t i = 0; i < 27; i++) {
    if (i % 2 == 0) {
    P.displayZoneText(0, letter[i], PA_CENTER, 30, 200, PA_SCROLL_LEFT, PA_SCROLL_UP);
    while (!P.displayAnimate()){};
    P.displayReset();
    Serial.print(letter[i]);
    }
    else
    {
    P.displayZoneText(0, letter[i], PA_CENTER, 30, 200, PA_SCROLL_RIGHT, PA_SCROLL_DOWN);
    while (!P.displayAnimate()){};
    P.displayReset();
    Serial.print(letter[i]);
    }    
  }

  Serial.println();

  for (uint8_t i = 0; i < 5; i++) {
    sprintf(thisWord,"%s%s",thisWord,letter[letterNum1[i]]);
    Serial.println(thisWord);
    P.displayZoneText(0, thisWord, PA_LEFT, 0, 0, PA_PRINT, PA_NO_EFFECT);
    P.displayAnimate();
    delay(500);
    }
 
  P.displayClear();
  thisWord[0] = 0;

 for (uint8_t i = 0; i < 5; i++) {
    sprintf(thisWord,"%s%s",thisWord,letter[letterNum2[i]]);
    Serial.println(thisWord);
    P.displayZoneText(0, thisWord, PA_LEFT, 0, 0, PA_PRINT, PA_NO_EFFECT);
    P.displayAnimate();
    delay(500);
    }  

  P.displayClear();
  
  for (uint8_t n = 1; n < 5; n++) {//To display the Zone number/order are set correctly
    P.displayZoneText(n, nums[n], PA_CENTER, 0, 0, PA_PRINT, PA_NO_EFFECT);
    P.displayAnimate();
    Serial.print(nums[n]);
    delay(1000);
  }
  Serial.println();
  P.displayZoneText(0, zonesStr, PA_CENTER, 0, 0, PA_PRINT, PA_NO_EFFECT);
  P.displayAnimate();
  delay(1000);

}

void doCounter() {    
  
  Serial.println(oldCount);
  Serial.println(newCount);
  for (uint8_t i = 1; i < 5; i ++) {
    if (newCount[i] != oldCount[i]) {
      c = char(newCount[i] - 48);
      P.displayZoneText(i, nums[c], PA_CENTER, 40, 0, PA_SCROLL_DOWN, PA_NO_EFFECT);
      Serial.print("Zone ");
      Serial.print(i);
      Serial.print(" ");
      Serial.print("Print ");
      Serial.print("C");
      Serial.print(newCount[i]);
      Serial.print(" Index");
      Serial.println(c); 
    } else {
      Serial.print("Zone ");
      Serial.print(i);
      Serial.print(" ");
      Serial.print("Do nowt ");
      Serial.print("C");
      Serial.print(newCount[i]);
      Serial.print(" Index");
      Serial.println(c);  
    }
  }
  strcpy(oldCount, newCount);  
  count ++;
  if (count == 10000) count = 0;
  sprintf(newCount, "%05d", count);//Rollover tested, works fine.
  P.synchZoneStart();
}


void loop(void) {
  if (P.displayAnimate()) {
    if (millis() - startTime >= 1000) {
      startTime = millis();
      doCounter();
    }
  }
}