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

#define HARDWARE_TYPE MD_MAX72XX::FC16_HW

#define MAX_DEVICES 2
const int maxX = MAX_DEVICES * 8 - 1;
const int maxY = 7;

#define CLK 13
#define DATA 11
#define CS 10

#define right 2 
#define left 4 
#define forward 3 
#define backward 5 



int time = millis();
int divide = 100;
int dividef = 50;
unsigned int action;
bool ledState;
int xx, yy;
int y,cy,cx,px,py, ex, ey = 0;
int x = 3;
short count = 0;
int speed = 100;
MD_MAX72XX mx = MD_MAX72XX(MD_MAX72XX::PAROLA_HW, CS, MAX_DEVICES);
int us;
bool trfa[16] = {
  false, false, false, false,
  false, false, false, false,
  false, false, false, false,
  false, false, false, false
  } ;
void setup() {
  Serial.begin(9600);
  mx.begin();
  mx.control(MD_MAX72XX:: INTENSITY, MAX_INTENSITY);
  mx.clear(); 
  pinMode(right, INPUT);
  pinMode(left, INPUT);
  pinMode(forward, INPUT);
  pinMode(backward, INPUT);
   // car(x, y);
}
void control(){
    if (digitalRead(forward) > 0 or digitalRead(backward) > 0
  or digitalRead(left) > 0 or digitalRead(right) > 0){
   // mx.clear()
   carClear(x, y);
    /* if(digitalRead(forward)>0){
      y++;
      if(y == 13){
        y--;
      }
    }
    if(digitalRead(backward)>0){
      y--;
      if(y == -1){
        y++;
      }
    } */
    if(digitalRead(left)>0){
      x=6;
      if(x == 8){
        x=6;
      }
    }
    if(digitalRead(right)>0){
      x=3;
      if(x < 2){
        x=3;
      }
    }
    car(x,y);
  }
      car(x,y);
}

void rect(int y, int x){
  mx.setPoint(y+0,x+0, true);
  mx.setPoint(y+0,x+1, true);
  mx.setPoint(y+1,x+0, true);
  mx.setPoint(y+1,x+1, true);
}

void rectClear(int y, int x){
  mx.setPoint(y+0,x+0, false);
  mx.setPoint(y+0,x+1, false);
  mx.setPoint(y+1,x+0, false);
  mx.setPoint(y+1,x+1, false);
}

void car(int y, int x){
  mx.setPoint(y+0,x+0, true);
  mx.setPoint(y-2,x+0, true);
  mx.setPoint(y-1,x+1, true);
  mx.setPoint(y-1,x+2, true);
  mx.setPoint(y+0,x+2, true);
  mx.setPoint(y-2,x+2, true);
  mx.setPoint(y-1,x+3, true);
}

void carClear(int y, int x){
  mx.setPoint(y+0,x+0, false);
  mx.setPoint(y-2,x+0, false);
  mx.setPoint(y-1,x+1, false);
  mx.setPoint(y-1,x+2, false);
  mx.setPoint(y+0,x+2, false);
  mx.setPoint(y-2,x+2, false);
  mx.setPoint(y-1,x+3, false);
}
void ecar(int ey, int ex, bool val){
  mx.setPoint(ey+0,ex+1, val);
  mx.setPoint(ey-2,ex+1, val); 
  mx.setPoint(ey-1,ex+2, val); 
  mx.setPoint(ey+0,ex+3, val); 
  mx.setPoint(ey-1,ex+1, val); 
  mx.setPoint(ey-2,ex+3, val); 
  mx.setPoint(ey-1,ex+0, val); 

  if(ex == 3 && ey == x){
    mx.clear();
    while(count != 16){
      trfa[count] = true;
      gameover();
      count++;
      delay(100);
    }
    delay(500);
    while(count != -1){
      trfa[count] = false;
      count--;
    }
  mx.clear();
  }
}

void ecarClear(int ey, int ex){
  mx.setPoint(ey+0,ex+1, false);
  mx.setPoint(ey-2,ex+1, false); 
  mx.setPoint(ey-1,ex+2, false); 
  mx.setPoint(ey+0,ex+3, false); 
  mx.setPoint(ey-1,ex+1, false); 
  mx.setPoint(ey-2,ex+3, false); 
  mx.setPoint(ey-1,ex+0, false); 
}

void loop() {
  int ran = random(0,2);
  if (ran == 0){
    cx = 3;
  }
  if (ran == 1){
    cx = 6;
  }
  
  for(cy = 18; cy >= -3;){
    unsigned long currentMillis = millis();
    control();
    if (currentMillis - action > speed){
      action = currentMillis;
      if (ledState == true){
        ledState = false;
        ecar(px, py, ledState);
      }
      if (ledState == false){
        ledState = true;
        ecar(cx, cy, ledState);
        py=cy;
        px=cx;
        cy--;
        if(cy == 2){
        speed=speed-1;
        }
        if(speed == 30){
            win();
          delay(99999);
          }
      }
    }

  }
}
void gameover(){
  mx.setPoint(5,7, trfa[7]);
  mx.setPoint(5,6, trfa[6]);
  mx.setPoint(6,6, trfa[5]);
  mx.setPoint(5,10, trfa[0]);
  mx.setPoint(6,10, trfa[1]);
  mx.setPoint(7,7, trfa[4]);
  mx.setPoint(7,8, trfa[3]);
  mx.setPoint(7,9, trfa[2]);
  mx.setPoint(1,7, trfa[15]);
  mx.setPoint(1,6, trfa[14]);
  mx.setPoint(2,6, trfa[13]);
  mx.setPoint(1,10, trfa[8]);
  mx.setPoint(2,10, trfa[9]);
  mx.setPoint(3,7, trfa[12]);
  mx.setPoint(3,8, trfa[11]);
  mx.setPoint(3,9, trfa[10]);
  speed = 45;
}
void win(){
  mx.clear();
  mx.setPoint(3,9, true);
  mx.setPoint(4,9, true);
  mx.setPoint(3,8, true);
  mx.setPoint(4,8, true);
  mx.setPoint(3,7, true);
  mx.setPoint(4,7, true);
  mx.setPoint(2,6, true);
  mx.setPoint(2,5, true);
  mx.setPoint(5,6, true);
  mx.setPoint(5,5, true);
  mx.setPoint(1,8, true);
  mx.setPoint(0,8, true);
  mx.setPoint(1,7, true);
  mx.setPoint(0,7, true);
  mx.setPoint(1,9, true);
  mx.setPoint(0,9, true);
  mx.setPoint(6,8, true);
  mx.setPoint(7,8, true);
  mx.setPoint(7,7, true);
  mx.setPoint(6,7, true);
  mx.setPoint(7,9, true);
  mx.setPoint(6,9, true);
  mx.setPoint(6,6, true);
  mx.setPoint(4,6, true);
  mx.setPoint(3,6, true);
  mx.setPoint(1,6, true);
  mx.setPoint(7,10, true);
  mx.setPoint(6,10, true);
  mx.setPoint(0,10, true);
  mx.setPoint(1,10, true);
}