#include <MD_MAX72xx.h>

#define	MAX_DEVICES	1
const int maxX = MAX_DEVICES * 8 - 1;
const int maxY = 7;

#define	CLK_PIN		13
#define	DATA_PIN	11
#define	CS_PIN		10
#define brake     12

#define VERT_PIN A0
#define HORZ_PIN A1
#define SEL_PIN  2
//
const int yLeft[] = {3, 2, 1, 0, 0};
const int yRight[] = {2, 3, 4, 5, 5};
const int lineLeft[] = {7, 6, 5, 4, 3};
const int lineRight[] = {0, 1, 2, 3, 4};

MD_MAX72XX mx = MD_MAX72XX(MD_MAX72XX::PAROLA_HW, CS_PIN, MAX_DEVICES);

int x = 0;
int y = 0;

void setup() {
  mx.begin();
  mx.control(MD_MAX72XX::INTENSITY, MAX_INTENSITY / 2);
  mx.clear();
  pinMode(VERT_PIN, INPUT);
  pinMode(HORZ_PIN, INPUT);
  pinMode(SEL_PIN, INPUT_PULLUP);
  pinMode(brake, INPUT_PULLUP);
  pinMode(3, OUTPUT);
}

void setArrow(int y[], int line[]) {
  mx.clear();
  const int x[] = {0, 1, 2, 3, 3};
  const int x2[] = {7, 6, 5, 4, 4};
  for (int i = 0; i < 5; i++) {
    mx.setPoint(x[i], y[i], true);
    mx.setPoint(x2[i], y[i], true);
    mx.setPoint(x[i], y[i] + 1, true);
    mx.setPoint(x2[i], y[i] + 1, true);
    mx.setPoint(x[i], y[i] + 2, true);
    mx.setPoint(x2[i], y[i] + 2, true);
    delay(100);
    mx.setPoint(3, line[i], true);
    mx.setPoint(4, line[i], true);
  }
}
void logo() {
  mx.clear();
  for (int i = 7; i >= 0; i--) {
    if (i >= 1 && i < 6) {
      mx.setPoint(i, 0, true);
      mx.setPoint(i, 1, true);
      mx.setPoint(i, 6, true);
      mx.setPoint(i, 7, true);
    }
    if(i > 3){
      // mx.setPoint(i, 3, true);
      // mx.setPoint(i, 4, true);
    }
    // mx.setPoint(0, i, true);
    // mx.setPoint(1, i, true);
    delay(20);
  }
}
// the loop function runs over and over again forever
void loop() {
  while(digitalRead(brake) == LOW){
    mx.clear();
    logo();
    digitalWrite(3, HIGH);
    delay(20);
    digitalWrite(3, LOW);
  }
  int horz = analogRead(HORZ_PIN);
  int vert = analogRead(VERT_PIN);
  if (vert < 300) {
    logo();
  }
  if (vert > 700) {
    setArrow(yLeft, lineLeft);
  }
  if (horz > 700) {
    setArrow(yRight, lineRight);
  }
  if (horz < 300) {
    setArrow(yLeft, lineLeft);
  }
  if (digitalRead(SEL_PIN) == LOW) {
    mx.clear();
  }
  mx.update();
  delay(100);
}