🥇Console roguelike in C++

Introduction

"Linux is not for gaming!" — an outdated phrase: there are now many wonderful games specifically for this great system. Still, sometimes you want something special that suits you... So I decided to create that something special.

Foundation

I won't show and tell all the code (that's not very interesting) — just the main points.

1.Character

Here are all the parameters of the character (health, armor, experience, etc.). The rendering and direction of movement (which is currently absent) are of interest.

int x = 5, y = 5;
    hp = 100,
    maxhp = 100,
    dm    = 20,
    armor = 0,
    xp    = 0,
    level = 0,
    diff  = 10, // difficulty
    pos   = 0; // direction

bool reg = 0,
       Mdm = 0, // bonuses
       ght = 0;

string color; // color will be used as the hero's condition indicator

void hero()  // this function handles the hero's movement to coordinates (x ; y)
{
  cout << "e[u " << "e[0;0H"; // restore cursor position, clear with space
  for (int i = 0; i <= x; i++)
    cout << RIGHT;              // macro "e[1C"
  for (int i = 0; i <= y; i++)
    cout << DOWN;             // macro "e[1B"
  cout << "e[s" << color << "╬"; // save cursor position
}

2.Control

It's clear how to move the character (x—++, y—++). But handling the keyboard is more interesting:

char key;
char getkey()
{
  system("stty raw");
  key = getchar();
  system("stty cooked");
  return key;
}

We just need to define the "control characters". You can do it with a switch, but I hate it.

switch(...) case .. : ... ; break better like this

#define KEY if (key ==
#define I ){
#define J ;}else

void keys()
{
  getkey();
    KEY 'a' I x-- ; pos = 1 J
    KEY......
}

Beauty! Let's loop functions and run around the screen! But it's a bit abrupt... The cursor is flickering, and the letters... We'll fix it!

//До цикла
  cout << "e[?25l"; //отключаем отображение курсора
  system("stty -echo"); //отключаем эхо-ввод
  system("xset r rate 120 10"); // изменяем задержку на более плавную
//После цикла
//-------Return_normal_system_settings--------
  cout << "e[00m";
  system("reset");
  system("xset r rate 200 20");

Ugh! One percent done!

3.The Surrounding World

Here we create arrays for x, y pieces of the world and the pieces themselves (char o[N]), the same for monsters and bonuses.

We create a function world(int objx[N] .... objy[N] ... obj[N], ... objcolor[N]) analogous to hero(), but with parameters and an additional loop for rendering the array… for fun, we only draw in the field of view (vis) (if (ox[k] < vis && oy[k]....))

Now we flood the screen with pieces of the world using a simple for loop and procedurally carve out rooms and passages, while also including enemies and items, and for full randomness, we don't forget about srand(time(NULL));

//------------------GENERATION---------------
void rooms()
{
  for (int i = 0; i <= 50; i++)
  {
    px[i] = rand() % 115 + 2;
    py[i] = rand() % 34 + 2;
    pl[i] = rand() % 5 + 5;
    ph[i] = rand() % 5 +  5;

    if (px[i] + pl[i] > 117) px[i] = 50 - pl[i] / 2; else
    if (px[i] < 2)           px[i] = 50 - pl[i] / 2; else
    if (py[i] < 1)           py[i] = 15 - ph[i] / 2; else
    if (py[i] + ph[i] > 37)  py[i] = 15 - ph[i] / 2;

    for (int j = 0; j <= i; j++)
    {
      while (px[i] > px[j] && px[i] < px[j] + pl[j])
        (px[i]+pl[i]/2 >= 55) ? px[i]++ : px[i]-- ;

      while (py[i] > py[j] && py[i] < py[j] + ph[j])
        (py[i]+ph[i]/2 >= 18) ? py[i]++ : py[i]-- ;

      while (px[i]+pl[i] > px[j] && px[i]+pl[i] < px[j] + pl[j])
        (px[i]+pl[i]/2 >= 55) ? px[i]++ : px[i]-- ;

      while (py[i]+ph[i] > py[j] && py[i]+ph[i] < py[j] + ph[j])
        (py[i]+ph[i]/2 >= 18) ? py[i]++ : py[i]-- ;
    }

    for (int j = 0; j <= i; j++)
    {
      while (px[j] + pl[j] >= 116) px[j]-- ;
      while (px[j] < 2)            px[j]++ ;
      while (py[j] < 1)            py[j]++ ;
      while (py[j] + ph[j] >= 37)  py[j]-- ;
    }
    tx[i] = px[i]+10; ty[i] = py[i]-3;

    if (i <= diff)
    {
      ex[i]  = px[i];
      ey[i]  = py[i];
      while (ex[i] < 10){ ex[i]++ ; epos[i] = 3 ;}
      while (ey[i] < 10){ ey[i]++ ; epos[i] = 1 ;}
      e[i]   = evar[pl[i]];
      ecolor[i] = "e[00me[31m";

      edm[i] = edmvar[pl[i]];
      ehp[i] = ehpvar[pl[i]];
      exp[i] = expvar[pl[i]];
    }
    rect(px[i], py[i], pl[i], ph[i]);
  }
}

void corrs()
{
  int pc, px, py;
  for (int i = 0; i <= 4; i++)
  {
    if (i < 2){
      px = 3;
      py = rand() % 33 + 3;
      pc = 110;
      line(px, py, pc, true);
      line(px, py+1, pc, true);
    } else {
      px = rand() % 100 + 3;
      py = 3;
      pc = 33;
      line(px, py, pc, false);
      line(px+1, py, pc, false);
    }
  }
}

4.Interaction

Now we need some way to not pass through walls and monsters, and to receive bonuses from items.

Our beloved for and #define

#define TOUCH if (x == ox[i] && y == oy[i] && pos ==
#define HIT   x == ex[i] && y == ey[i] && pos ==
 for (int i = 0; i <= n; i++)
  {
    if (i <= diff)
    {
     if (Mdm) ehp[i]-=2 ; // если бонус "массовый урон" включен
     epos[i] = 0;

     if (ex[i] < x+5 && ex[i] > x-5 &&
         ey[i] < y+5 && ey[i] > y-5  )
     {
       edel(i); // функция переписывающая предыдущее положение противника
       if (ex[i] < x I ex[i]++ ; epos[i] = 1 J
       if (ex[i] > x I ex[i]-- ; epos[i] = 2 J
       if (ey[i] < y I ey[i]++ ; epos[i] = 3 J
       if (ey[i] > y I ey[i]-- ; epos[i] = 4 ;}
     }
   for (int j = 0; j <= n; j++) // столкновение моба со стенками
       while (ex[i] == ox[j] && ey[i] == oy[j] || ex[i] == ex[j] && ey[i] == ey[j] && j != i)
       {
         if (epos[i] == 1) ex[i]-- ; else
         if (epos[i] == 2) ex[i]++ ; else
         if (epos[i] == 3) ey[i]-- ; else
         if (epos[i] == 4) ey[i]++ ;
       }

     if (x == ex[i] && y == ey[i]) //  "битва"
      {
       if (ehp[i] > 1)
       {
         ehp[i] -= dm;
         (edm[i] < armor) ?
         hp -= 0 :
         hp -= edm[i]-armor;
       } else {
         ex[i] = ey[i] = -1;
         xp += exp[i];
         ehp[i] = 12;
       }
     }
     if (!ght) // если не призрак проверять столкновение игрока с врагами
     {
       if (HIT 1) y++ ;else
       if (HIT 2) x-- ;else
       if (HIT 3) y-- ;else
       if (HIT 4) x++ ;
     }
    }
    if (!ght) // то же, но со стенами
    {
      TOUCH 1 I y++ J
      TOUCH 2 I x-- J
      TOUCH 3 I y-- J
      TOUCH 4 ) x++ ;
    }
  }

5.Menu

The menu is simply displayed on the screen, numbering the items, while we handle the player's choice using getkey(). We create a character status bar, implement a leveling menu, write a backstory, and end up with what I call 'Subsoil.'