#include <iostream>
#include <WINDOWS.H>
#include <ctime>

int main()
{
  unsigned seed = time(nullptr);
  srand(seed);
  const int WID = 20;
  const int HIG = 10;
  char width[WID];
  int posx = WID / 2;
  int posy = HIG - 1;
  int obx = rand() % WID;
  int oby = 2;
  int score = 0;
  bool done = false;

  while (!done)
  {
    system("cls");

    std::cout << "SCORE: " << score << std::endl;

    //MAP BOUNDRIES
    if (posx > WID - 1)
    {
      posx = 0; //leftmost position
    }
    else if (posx < 0)
    {
      posx = WID - 1; //rightmost position
    }

    if (oby > HIG)
    {
      oby = 0;
      obx = rand() % WID;
    }

    //DRAW
    for (int k = 0; k < HIG; k++)
    {
      for (int i = 0; i < WID; i++)
      {
        if (k == posy && i == posx)
        {
          width[i] = 'O'; //player
        }
        else if (k == oby && i == obx)
        {
          width[i] = 'X'; //object
        }
        else
        {
          width[i] = '_'; //background
        }
        std::cout << width[i];
      }
      std::cout <<std:: endl;
    }

    //CONTROLS
    if (GetKeyState('A') < 0)
    {
      posx -= 1;
      Sleep(5);
    }
    else if (GetKeyState('D') < 0)
    {
      posx += 1;
      Sleep(5);
    }
    else if (GetKeyState('Q') < 0)
    {
      done = true;
    }

    //OBJECT MOVE
    oby++;

    //SCORE
    if (obx == posx && oby == posy)
    {
      score++;
    }
    Sleep(50);
  }
  return 0;
}