src/sdl2/main.c

   1 #ifdef __EMSCRIPTEN__
   2 #  include <emscripten.h>
   3 #endif
   4
   5 #include <SDL2/SDL.h>
   6 #include <stdio.h>
   7 #include <stdarg.h>
   8 #include <stdlib.h> // srand exit
   9 #include <string.h> // strcasecmp
  10 #include <assert.h>
  11 #include "system.h"
  12 #include "input.h"
  13
  14 #include "cp866.h"
  15
  16 #include "my.h" // fexists
  17 #include "player.h" // pl1 pl2
  18 #include "menu.h" // G_keyf
  19 #include "error.h" // logo
  20 #include "monster.h" // nomon
  21
  22 #include "files.h" // F_startup F_addwad F_initwads F_allocres
  23 #include "config.h" // CFG_args CFG_load CFG_save
  24 #include "args.h" // ARG_parse
  25 #include "memory.h" // M_startup
  26 #include "game.h" // G_init G_act
  27 #include "sound.h" // S_init S_done
  28 #include "music.h" // S_initmusic S_updatemusic S_donemusic
  29 #include "render.h" // R_init R_draw R_done
  30
  31 #define TITLE_STR "Doom 2D (SDL2)"
  32
  33 static Uint32 ticks;
  34 static int quit = 0;
  35 static SDL_Window *window;
  36 static SDL_GLContext context;
  37 static SDL_Surface *surf;
  38 static videomode_t vlist;
  39
  40 static const cfg_t arg[] = {
  41   {"file", NULL, Y_FILES},
  42   {"cheat", &cheat, Y_SW_ON},
  43 //  {"vga", &shot_vga, Y_SW_ON},
  44   {"sndvol", &snd_vol, Y_WORD},
  45   {"musvol", &mus_vol, Y_WORD},
  46   {"mon", &nomon, Y_SW_OFF},
  47   {"warp", &_warp, Y_BYTE},
  48 //  {"config", NULL, cfg_file, Y_STRING},
  49   {NULL, NULL, 0} // end
  50 };
  51
  52 static const cfg_t cfg[] = {
  53 //  {"screenshot", &shot_vga, Y_SW_ON},
  54   {"sound_volume", &snd_vol, Y_WORD},
  55   {"music_volume", &mus_vol, Y_WORD},
  56   {"music_random", &music_random, Y_SW_ON},
  57   {"music_time", &music_time, Y_DWORD},
  58   {"music_fade", &music_fade, Y_DWORD},
  59   {"pl1_left", &pl1.kl, Y_KEY},
  60   {"pl1_right",&pl1.kr, Y_KEY},
  61   {"pl1_up", &pl1.ku, Y_KEY},
  62   {"pl1_down", &pl1.kd, Y_KEY},
  63   {"pl1_jump", &pl1.kj, Y_KEY},
  64   {"pl1_fire", &pl1.kf, Y_KEY},
  65   {"pl1_next", &pl1.kwr, Y_KEY},
  66   {"pl1_prev", &pl1.kwl, Y_KEY},
  67   {"pl1_use", &pl1.kp, Y_KEY},
  68   {"pl2_left", &pl2.kl, Y_KEY},
  69   {"pl2_right", &pl2.kr, Y_KEY},
  70   {"pl2_up", &pl2.ku, Y_KEY},
  71   {"pl2_down", &pl2.kd, Y_KEY},
  72   {"pl2_jump", &pl2.kj, Y_KEY},
  73   {"pl2_fire", &pl2.kf, Y_KEY},
  74   {"pl2_next", &pl2.kwr, Y_KEY},
  75   {"pl2_prev", &pl2.kwl, Y_KEY},
  76   {"pl2_use", &pl2.kp, Y_KEY},
  77   {NULL, NULL, 0} // end
  78 };
  79
  80 static void CFG_args (int argc, char **argv) {
  81   const cfg_t *list[] = { arg, R_args() };
  82   ARG_parse(argc, argv, 2, list);
  83 }
  84
  85 static void CFG_load (void) {
  86   const cfg_t *list[] = { cfg, R_conf() };
  87   CFG_read_config("default.cfg", 2, list);
  88   CFG_read_config("doom2d.cfg", 2, list);
  89 }
  90
  91 static void CFG_save (void) {
  92   const cfg_t *list[] = { cfg, R_conf() };
  93   CFG_update_config("doom2d.cfg", "doom2d.cfg", 2, list, "generated by doom2d, do not modify");
  94 }
  95
  96 /* --- error.h --- */
  97
  98 void logo (const char *s, ...) {
  99   va_list ap;
 100   va_start(ap, s);
 101   vprintf(s, ap);
 102   va_end(ap);
 103   fflush(stdout);
 104 }
 105
 106 void logo_gas (int cur, int all) {
 107   // stub
 108 }
 109
 110 void ERR_failinit (char *s, ...) {
 111   va_list ap;
 112   va_start(ap, s);
 113   vprintf(s, ap);
 114   va_end(ap);
 115   puts("");
 116   exit(1);
 117 }
 118
 119 void ERR_fatal (char *s, ...) {
 120   va_list ap;
 121   R_done();
 122   S_done();
 123   S_donemusic();
 124   M_shutdown();
 125   SDL_Quit();
 126   puts("\nКРИТИЧЕСКАЯ ОШИБКА:");
 127   va_start(ap, s);
 128   vprintf(s, ap);
 129   va_end(ap);
 130   puts("");
 131   exit(1);
 132 }
 133
 134 void ERR_quit (void) {
 135   quit = 1;
 136 }
 137
 138 /* --- system.h --- */
 139
 140 static int Y_resize_window (int w, int h, int fullscreen) {
 141   assert(w > 0);
 142   assert(h > 0);
 143   assert(window != NULL);
 144   if (surf != NULL) {
 145     if (surf->w != w || surf->h != h) {
 146       SDL_Surface *s = SDL_CreateRGBSurface(0, w, h, 8, 0, 0, 0, 0);
 147       if (s != NULL) {
 148         SDL_SetPaletteColors(s->format->palette, surf->format->palette->colors, 0, surf->format->palette->ncolors);
 149         SDL_FreeSurface(surf);
 150         surf = s;
 151       }
 152     }
 153   }
 154   SDL_SetWindowSize(window, w, h);
 155   Y_set_fullscreen(fullscreen);
 156   return 1;
 157 }
 158
 159 int Y_set_videomode_opengl (int w, int h, int fullscreen) {
 160   assert(w > 0);
 161   assert(h > 0);
 162   Uint32 flags;
 163   SDL_Window *win;
 164   SDL_GLContext ctx;
 165   if (window != NULL && context != NULL) {
 166     Y_resize_window(w, h, fullscreen);
 167     win = window;
 168   } else {
 169     flags = SDL_WINDOW_RESIZABLE | SDL_WINDOW_OPENGL;
 170     if (fullscreen) {
 171       flags = flags | SDL_WINDOW_FULLSCREEN;
 172     }
 173     // TODO set context version and type
 174 #ifdef __EMSCRIPTEN__
 175     SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
 176     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
 177     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
 178 #else
 179     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 1);
 180     SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 1);
 181 #endif
 182     SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
 183     win = SDL_CreateWindow(TITLE_STR, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, flags);
 184     if (win != NULL) {
 185       ctx = SDL_GL_CreateContext(win);
 186       if (ctx != NULL) {
 187         Y_unset_videomode();
 188         window = win;
 189         context = ctx;
 190         SDL_GL_MakeCurrent(window, context);
 191       } else {
 192         SDL_DestroyWindow(win);
 193         win = NULL;
 194       }
 195     }
 196   }
 197   if (win == NULL) {
 198     logo("Y_set_videomode_opengl: error: %s\n", SDL_GetError());
 199   }
 200   return win != NULL;
 201 }
 202
 203 int Y_set_videomode_software (int w, int h, int fullscreen) {
 204   assert(w > 0);
 205   assert(h > 0);
 206   Uint32 flags;
 207   SDL_Surface *s;
 208   SDL_Window *win;
 209   if (window != NULL && surf != NULL) {
 210     Y_resize_window(w, h, fullscreen);
 211     win = window;
 212   } else {
 213     flags = SDL_WINDOW_RESIZABLE;
 214     if (fullscreen) {
 215       flags = flags | SDL_WINDOW_FULLSCREEN;
 216     }
 217     win = SDL_CreateWindow(TITLE_STR, SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, w, h, flags);
 218     if (win != NULL) {
 219       s = SDL_CreateRGBSurface(0, w, h, 8, 0, 0, 0, 0);
 220       if (s != NULL) {
 221         Y_unset_videomode();
 222         window = win;
 223         surf = s;
 224       } else {
 225         SDL_DestroyWindow(win);
 226         win = NULL;
 227       }
 228     }
 229   }
 230   if (win == NULL) {
 231     logo("Y_set_videomode_software: error: %s\n", SDL_GetError());
 232   }
 233   return win != NULL;
 234 }
 235
 236 void Y_get_videomode (int *w, int *h) {
 237   if (window != NULL) {
 238     SDL_GetWindowSize(window, w, h);
 239   } else {
 240     *w = 0;
 241     *h = 0;
 242   }
 243 }
 244
 245 int Y_videomode_setted (void) {
 246   return window != NULL;
 247 }
 248
 249 void Y_unset_videomode (void) {
 250   if (window != NULL) {
 251     if (context != NULL) {
 252       SDL_GL_MakeCurrent(window, NULL);
 253       SDL_GL_DeleteContext(context);
 254       context = NULL;
 255     }
 256     if (surf != NULL) {
 257       SDL_FreeSurface(surf);
 258       surf = NULL;
 259     }
 260     SDL_DestroyWindow(window);
 261     window = NULL;
 262   }
 263 }
 264
 265 static void init_videomode_list (void) {
 266   int i, j, k;
 267   SDL_DisplayMode m;
 268   int n = SDL_GetNumDisplayModes(0);
 269   if (vlist.modes != NULL) {
 270     free(vlist.modes);
 271     vlist.modes = NULL;
 272     vlist.n = 0;
 273   }
 274   if (n > 0) {
 275     vlist.modes = malloc(n * sizeof(videomode_size_t));
 276     if (vlist.modes != NULL) {
 277       j = 0;
 278       for (i = 0; i < n; i++) {
 279         SDL_GetDisplayMode(0, i, &m);
 280         k = 0;
 281         while (k < j && (m.w != vlist.modes[k].w || m.h != vlist.modes[k].h)) {
 282           k++;
 283         }
 284         if (k >= j) {
 285           vlist.modes[j] = (videomode_size_t) {
 286             .w = m.w,
 287             .h = m.h
 288           };
 289           j++;
 290         }
 291       }
 292       vlist.n = j;
 293     }
 294   }
 295 }
 296
 297 const videomode_t *Y_get_videomode_list_opengl (int fullscreen) {
 298   init_videomode_list();
 299   return &vlist;
 300 }
 301
 302 const videomode_t *Y_get_videomode_list_software (int fullscreen) {
 303   init_videomode_list();
 304   return &vlist;
 305 }
 306
 307 void Y_set_fullscreen (int yes) {
 308   if (window != NULL) {
 309     SDL_SetWindowFullscreen(window, yes ? SDL_WINDOW_FULLSCREEN : 0);
 310   }
 311 }
 312
 313 int Y_get_fullscreen (void) {
 314   return (window != NULL) && (SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN);
 315 }
 316
 317 void Y_swap_buffers (void) {
 318   assert(window != NULL);
 319   assert(context != NULL);
 320   SDL_GL_SwapWindow(window);
 321 }
 322
 323 void Y_get_buffer (byte **buf, int *w, int *h, int *pitch) {
 324   assert(window != NULL);
 325   assert(surf != NULL);
 326   *buf = surf->pixels;
 327   *w = surf->w;
 328   *h = surf->h;
 329   *pitch = surf->pitch;
 330 }
 331
 332 void Y_set_vga_palette (byte *vgapal) {
 333   assert(window != NULL);
 334   assert(surf != NULL);
 335   int i;
 336   byte *p = vgapal;
 337   SDL_Color colors[256];
 338   for (i = 0; i < 256; i++) {
 339     colors[i] = (SDL_Color) {
 340       .r = p[0] * 255 / 63,
 341       .g = p[1] * 255 / 63,
 342       .b = p[2] * 255 / 63
 343     };
 344     p += 3;
 345   }
 346   SDL_SetPaletteColors(surf->format->palette, colors, 0, 256);
 347 }
 348
 349 void Y_repaint_rect (int x, int y, int w, int h) {
 350   assert(window != NULL);
 351   assert(surf != NULL);
 352   SDL_Surface *s = SDL_GetWindowSurface(window);
 353   SDL_Rect r = (SDL_Rect) {
 354     .x = x,
 355     .y = y,
 356     .w = w,
 357     .h = h
 358   };
 359   SDL_BlitSurface(surf, &r, s, &r);
 360   SDL_UpdateWindowSurfaceRects(window, &r, 1);
 361 }
 362
 363 void Y_repaint (void) {
 364   Y_repaint_rect(0, 0, surf->w, surf->h);
 365 }
 366
 367 void Y_enable_text_input (void) {
 368   SDL_StartTextInput();
 369 }
 370
 371 void Y_disable_text_input (void) {
 372   SDL_StopTextInput();
 373 }
 374
 375 /* --- main --- */
 376
 377 static int sdl_to_key (int code) {
 378   switch (code) {
 379     case SDL_SCANCODE_0: return KEY_0;
 380     case SDL_SCANCODE_1: return KEY_1;
 381     case SDL_SCANCODE_2: return KEY_2;
 382     case SDL_SCANCODE_3: return KEY_3;
 383     case SDL_SCANCODE_4: return KEY_4;
 384     case SDL_SCANCODE_5: return KEY_5;
 385     case SDL_SCANCODE_6: return KEY_6;
 386     case SDL_SCANCODE_7: return KEY_7;
 387     case SDL_SCANCODE_8: return KEY_8;
 388     case SDL_SCANCODE_9: return KEY_9;
 389     case SDL_SCANCODE_A: return KEY_A;
 390     case SDL_SCANCODE_B: return KEY_B;
 391     case SDL_SCANCODE_C: return KEY_C;
 392     case SDL_SCANCODE_D: return KEY_D;
 393     case SDL_SCANCODE_E: return KEY_E;
 394     case SDL_SCANCODE_F: return KEY_F;
 395     case SDL_SCANCODE_G: return KEY_G;
 396     case SDL_SCANCODE_H: return KEY_H;
 397     case SDL_SCANCODE_I: return KEY_I;
 398     case SDL_SCANCODE_J: return KEY_J;
 399     case SDL_SCANCODE_K: return KEY_K;
 400     case SDL_SCANCODE_L: return KEY_L;
 401     case SDL_SCANCODE_M: return KEY_M;
 402     case SDL_SCANCODE_N: return KEY_N;
 403     case SDL_SCANCODE_O: return KEY_O;
 404     case SDL_SCANCODE_P: return KEY_P;
 405     case SDL_SCANCODE_Q: return KEY_Q;
 406     case SDL_SCANCODE_R: return KEY_R;
 407     case SDL_SCANCODE_S: return KEY_S;
 408     case SDL_SCANCODE_T: return KEY_T;
 409     case SDL_SCANCODE_U: return KEY_U;
 410     case SDL_SCANCODE_V: return KEY_V;
 411     case SDL_SCANCODE_W: return KEY_W;
 412     case SDL_SCANCODE_X: return KEY_X;
 413     case SDL_SCANCODE_Y: return KEY_Y;
 414     case SDL_SCANCODE_Z: return KEY_Z;
 415     case SDL_SCANCODE_RETURN: return KEY_RETURN;
 416     case SDL_SCANCODE_ESCAPE: return KEY_ESCAPE;
 417     case SDL_SCANCODE_BACKSPACE: return KEY_BACKSPACE;
 418     case SDL_SCANCODE_TAB: return KEY_TAB;
 419     case SDL_SCANCODE_SPACE: return KEY_SPACE;
 420     case SDL_SCANCODE_MINUS: return KEY_MINUS;
 421     case SDL_SCANCODE_EQUALS: return KEY_EQUALS;
 422     case SDL_SCANCODE_LEFTBRACKET: return KEY_LEFTBRACKET;
 423     case SDL_SCANCODE_RIGHTBRACKET: return KEY_RIGHTBRACKET;
 424     case SDL_SCANCODE_BACKSLASH: return KEY_BACKSLASH;
 425     case SDL_SCANCODE_SEMICOLON: return KEY_SEMICOLON;
 426     case SDL_SCANCODE_APOSTROPHE: return KEY_APOSTROPHE;
 427     case SDL_SCANCODE_GRAVE: return KEY_GRAVE;
 428     case SDL_SCANCODE_COMMA: return KEY_COMMA;
 429     case SDL_SCANCODE_PERIOD: return KEY_PERIOD;
 430     case SDL_SCANCODE_SLASH: return KEY_SLASH;
 431     case SDL_SCANCODE_CAPSLOCK: return KEY_CAPSLOCK;
 432     case SDL_SCANCODE_F1: return KEY_F1;
 433     case SDL_SCANCODE_F2: return KEY_F2;
 434     case SDL_SCANCODE_F3: return KEY_F3;
 435     case SDL_SCANCODE_F4: return KEY_F4;
 436     case SDL_SCANCODE_F5: return KEY_F5;
 437     case SDL_SCANCODE_F6: return KEY_F6;
 438     case SDL_SCANCODE_F7: return KEY_F7;
 439     case SDL_SCANCODE_F8: return KEY_F8;
 440     case SDL_SCANCODE_F9: return KEY_F9;
 441     case SDL_SCANCODE_F10: return KEY_F10;
 442     case SDL_SCANCODE_F11: return KEY_F11;
 443     case SDL_SCANCODE_F12: return KEY_F12;
 444     case SDL_SCANCODE_PRINTSCREEN: return KEY_PRINTSCREEN;
 445     case SDL_SCANCODE_SCROLLLOCK: return KEY_SCROLLLOCK;
 446     case SDL_SCANCODE_PAUSE: return KEY_PAUSE;
 447     case SDL_SCANCODE_INSERT: return KEY_INSERT;
 448     case SDL_SCANCODE_HOME: return KEY_HOME;
 449     case SDL_SCANCODE_PAGEUP: return KEY_PAGEUP;
 450     case SDL_SCANCODE_DELETE: return KEY_DELETE;
 451     case SDL_SCANCODE_END: return KEY_END;
 452     case SDL_SCANCODE_PAGEDOWN: return KEY_PAGEDOWN;
 453     case SDL_SCANCODE_RIGHT: return KEY_RIGHT;
 454     case SDL_SCANCODE_LEFT: return KEY_LEFT;
 455     case SDL_SCANCODE_DOWN: return KEY_DOWN;
 456     case SDL_SCANCODE_UP: return KEY_UP;
 457     case SDL_SCANCODE_NUMLOCKCLEAR: return KEY_NUMLOCK;
 458     case SDL_SCANCODE_KP_DIVIDE: return KEY_KP_DIVIDE;
 459     case SDL_SCANCODE_KP_MULTIPLY: return KEY_KP_MULTIPLY;
 460     case SDL_SCANCODE_KP_MINUS: return KEY_KP_MINUS;
 461     case SDL_SCANCODE_KP_PLUS: return KEY_KP_PLUS;
 462     case SDL_SCANCODE_KP_ENTER: return KEY_KP_ENTER;
 463     case SDL_SCANCODE_KP_0: return KEY_KP_0;
 464     case SDL_SCANCODE_KP_1: return KEY_KP_1;
 465     case SDL_SCANCODE_KP_2: return KEY_KP_2;
 466     case SDL_SCANCODE_KP_3: return KEY_KP_3;
 467     case SDL_SCANCODE_KP_4: return KEY_KP_4;
 468     case SDL_SCANCODE_KP_5: return KEY_KP_5;
 469     case SDL_SCANCODE_KP_6: return KEY_KP_6;
 470     case SDL_SCANCODE_KP_7: return KEY_KP_7;
 471     case SDL_SCANCODE_KP_8: return KEY_KP_8;
 472     case SDL_SCANCODE_KP_9: return KEY_KP_9;
 473     case SDL_SCANCODE_KP_PERIOD: return KEY_KP_PERIOD;
 474     case SDL_SCANCODE_SYSREQ: return KEY_SYSREQ;
 475     case SDL_SCANCODE_LCTRL: return KEY_LCTRL;
 476     case SDL_SCANCODE_LSHIFT: return KEY_LSHIFT;
 477     case SDL_SCANCODE_LALT: return KEY_LALT;
 478     case SDL_SCANCODE_LGUI: return KEY_LSUPER;
 479     case SDL_SCANCODE_RCTRL: return KEY_RCTRL;
 480     case SDL_SCANCODE_RSHIFT: return KEY_RSHIFT;
 481     case SDL_SCANCODE_RALT: return KEY_RALT;
 482     case SDL_SCANCODE_RGUI: return KEY_RSUPER;
 483     default: return KEY_UNKNOWN;
 484   }
 485 }
 486
 487 static void window_event_handler (SDL_WindowEvent *ev) {
 488   switch (ev->event) {
 489     case SDL_WINDOWEVENT_RESIZED:
 490       R_set_videomode(ev->data1, ev->data2, Y_get_fullscreen());
 491       break;
 492     case SDL_WINDOWEVENT_CLOSE:
 493       ERR_quit();
 494       break;
 495   }
 496 }
 497
 498 static int utf8_to_wchar (char *x) {
 499   int i = 0;
 500   byte *s = (byte*)x;
 501   if (s[0] < 0x80) {
 502     return s[0];
 503   } else if (s[0] < 0xE0) {
 504     if (s[0] - 192 >= 0 && s[1] >= 0x80 && s[1] < 0xE0) {
 505       i = (s[0] - 192) * 64 + s[1] - 128;
 506     }
 507   } else if (s[0] < 0xF0) {
 508     if (s[1] >= 0x80 && s[1] < 0xE0 && s[2] >= 0x80 && s[2] < 0xE0) {
 509       i = ((s[0] - 224) * 64 + s[1] - 128) * 64 + s[2] - 128;
 510     }
 511   }
 512   return i;
 513 }
 514
 515 static void poll_events (void) {
 516   int key, down, uch, ch;
 517   SDL_Event ev;
 518   while (SDL_PollEvent(&ev)) {
 519     switch (ev.type) {
 520       case SDL_QUIT:
 521         ERR_quit();
 522         break;
 523       case SDL_WINDOWEVENT:
 524         if (ev.window.windowID == SDL_GetWindowID(window)) {
 525           window_event_handler(&ev.window);
 526         }
 527         break;
 528       case SDL_KEYDOWN:
 529       case SDL_KEYUP:
 530         down = ev.type == SDL_KEYDOWN;
 531         key = sdl_to_key(ev.key.keysym.scancode);
 532         I_press(key, down);
 533         GM_key(key, down);
 534         break;
 535       case SDL_TEXTINPUT:
 536         uch = utf8_to_wchar(ev.text.text);
 537         ch = cp866_utoc(uch);
 538         if (ch >= 0) {
 539           GM_input(ch);
 540         }
 541         break;
 542     }
 543   }
 544 }
 545
 546 static void step (void) {
 547   poll_events();
 548   S_updatemusic();
 549   Uint32 t = SDL_GetTicks();
 550   if (t - ticks > DELAY) {
 551     ticks = t;
 552     G_act();
 553   }
 554   R_draw();
 555 }
 556
 557 int main (int argc, char **argv) {
 558   char *pw;
 559   CFG_args(argc, argv);
 560   logo("system: initialize SDL2\n");
 561   if (SDL_Init(SDL_INIT_TIMER | SDL_INIT_VIDEO | SDL_INIT_EVENTS) == -1) {
 562     logo("system: failed to init SDL2: %s\n", SDL_GetError());
 563     return 1;
 564   }
 565   // Player 1 defaults
 566   pl1.ku = KEY_KP_8;
 567   pl1.kd = KEY_KP_5;
 568   pl1.kl = KEY_KP_4;
 569   pl1.kr = KEY_KP_6;
 570   pl1.kf = KEY_PAGEDOWN;
 571   pl1.kj = KEY_DELETE;
 572   pl1.kwl = KEY_HOME;
 573   pl1.kwr = KEY_END;
 574   pl1.kp = KEY_KP_8;
 575   // Player 2 defaults
 576   pl2.ku = KEY_E;
 577   pl2.kd = KEY_D;
 578   pl2.kl = KEY_S;
 579   pl2.kr = KEY_F;
 580   pl2.kf = KEY_A;
 581   pl2.kj = KEY_Q;
 582   pl2.kwl = KEY_1;
 583   pl2.kwr = KEY_2;
 584   pl2.kp = KEY_E;
 585   srand(SDL_GetTicks());
 586   F_startup();
 587   CFG_load();
 588 #ifndef WIN32
 589   pw = "/usr/share/doom2d-rembo/doom2d.wad";
 590 #else
 591   pw = "doom2d.wad";
 592 #endif
 593   if (fexists(pw)) {
 594     F_addwad(pw);
 595   } else {
 596     F_addwad("doom2d.wad");
 597   }
 598   F_initwads();
 599   M_startup();
 600   F_allocres();
 601   S_init();
 602   S_initmusic();
 603   R_init();
 604   G_init();
 605   ticks = SDL_GetTicks();
 606 #ifdef __EMSCRIPTEN__
 607   emscripten_set_main_loop(step, 0, 1);
 608 #else
 609   while (!quit) {
 610     step();
 611   }
 612 #endif
 613   CFG_save();
 614   R_done();
 615   S_donemusic();
 616   S_done();
 617   M_shutdown();
 618   SDL_Quit();
 619   return 0;
 620 }