#include <Arduino.h>
#include "LedControl.h"

/*
 Now we need a LedControl to work with.
 ***** These pin numbers will probably not work with your hardware *****
 pin 23 is connected to the DataIn 
 pin 18 is connected to the CLK 
 pin 15 is connected to LOAD 
 We have only a single MAX72XX.
 */
LedControl lc=LedControl(23,18,15,1);

#define NAVE 18 // Numarul de LED uri alocate navelor

int dr_sg = 0; 
int sus_jos = 0; 
int nimerit_r[NAVE] = {};
int nimerit_c[NAVE] = {};
int nava_r[NAVE] = {0, 0, 0,  2, 3, 4,  6,  6, 7,  1, 2, 3, 4,  7,  0, 0,  5, 5};
int nava_c[NAVE] = {0, 1, 2,  1, 1, 1,  0,  3, 3,  4, 4, 4, 4,  5,  6, 7,  6, 7};
int end = 0;
int pinStanga = 27;
int pinSus = 13;
int pinDreapta = 12;
int pinJos = 26;
int pinConfirm =  14;

void setup() {
  Serial.begin(115200);
  /*
   The MAX72XX is in power-saving mode on startup,
   we have to do a wakeup call
   */
  lc.shutdown(0,false);
  /* Set the brightness to a medium values */
  lc.setIntensity(0,8);
  /* and clear the display */
  lc.clearDisplay(0);

  pinMode(pinStanga, INPUT_PULLUP);
  pinMode(pinSus, INPUT_PULLUP);
  pinMode(pinDreapta, INPUT_PULLUP);
  pinMode(pinJos, INPUT_PULLUP);
  pinMode(pinConfirm, INPUT_PULLUP);
}

void start(int r, int c){
  lc.setLed(0, r, c, true);
  delay(150);
  lc.setLed(0, r, c, false);
  delay(150);
}


void loop() { 
  int sg = digitalRead(pinStanga);
  int sus = digitalRead(pinSus);
  int dr = digitalRead(pinDreapta);
  int jos = digitalRead(pinJos);
  int confirm = digitalRead(pinConfirm);
  start(dr_sg, sus_jos);
  for(int i = 0; i < NAVE; i++){
    lc.setLed(0, nimerit_r[i], nimerit_c[i], true);
  }
  if(end == NAVE){
    lc.clearDisplay(0);
    delay(50000);
  }
  if(sg == LOW){
    Serial.println("Stanga");
    sus_jos--;
    if(dr_sg == -1){
      dr_sg = 7;
    }
  }
  if(sus == LOW){
    Serial.println("Sus");
    dr_sg--;
    if(sus_jos == -1){
      sus_jos = 7;
    }
  }
  if(dr == LOW){
    Serial.println("Dreapta");
    sus_jos++;
    if(dr_sg == 8){
      dr_sg = 0;
    }
  }
  if(jos == LOW){
    Serial.println("Jos");
    dr_sg++;
    if(sus_jos == 8){
      sus_jos = 0;
    }
  }
  if(confirm == LOW){
    Serial.println("Confirm");
        for(int i = 0; i < NAVE; i++){
          if(dr_sg == nava_r[i] && sus_jos == nava_c[i]){
            lc.setLed(0, dr_sg, sus_jos, true);
            nimerit_r[i] = dr_sg;
            nimerit_c[i] = sus_jos;
            end++;
          }
        }
      dr_sg = sus_jos = 0;
  }
}