🥇C++ console roguelike

Introduction

"Linux is not for gaming!" - an outdated phrase: now there are many wonderful games specifically for this wonderful system. But still, sometimes, you want something special that would be right for you ... And I decided to create this special.

Basis

I will not show and tell the whole code (this is not very interesting) - only the main points.

1.Character

All the parameters of the character are listed here (health, armor, experience, etc.), drawing and direction of movement (which is not currently available) are of interest.

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

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

string color; // цвет будет использован в качестве индикатора состаяния героя

void hero()  // здесь происходит перемещение героя на координаты (x ; y)
{
  cout << "e[u " << "e[0;0H"; // восстановление позиции курсора, затирание пробелом
  for (int i = 0; i <= x; i++)
    cout << RIGHT;              // макрос "e[1C"
  for (int i = 0; i <= y; i++)
    cout << DOWN;             // макрос "e[1B"
  cout << "e[s" << color << "╬"; // сохранение позиции курсора
}

2. Management

How to move the character is clear (x—++, y—++). But the keyboard processing is more entertaining:

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

It remains only to set the "control characters". Can be done with 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! Looping functions and running around the screen! But somehow harshly ... And the cursor flickers, and the letters ... Let's 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");

Uhhh! One percent done!

3. Surrounding world

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

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

Now we fill the screen with particles of the world using a simple for and procedurally gouge out rooms and passages, at the same time we enter enemies and objects, for complete randomness, do not 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 to somehow not go through walls and monsters, get bonuses from items.

Our favorite 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, using getkey () we process the player's choice. We write the status bar of the character, implement the pumping menu, write the background, and we get what I called “Subsoil” (“Nedra”).

Conclusion

Such is something. You can play it by downloading, unpacking and running like this:

$ sudo chmod +x Subsoil-1.0/Subsoil

$ Subsoil-1.0/Subsoil

, or, finally inspired, write yourself an adventure to your liking. I warn you in advance: my game is not easy!

Links

Procedural generation, inspirer.

Source: habr.com

Console Roguelike in C++