src/stubsys/main.c

   1 /* Copyright (C) 2020 SovietPony
   2  *
   3  * This program is free software: you can redistribute it and/or modify
   4  * it under the terms of the GNU General Public License as published by
   5  * the Free Software Foundation, version 3 of the License ONLY.
   6  *
   7  * This program is distributed in the hope that it will be useful,
   8  * but WITHOUT ANY WARRANTY; without even the implied warranty of
   9  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  10  * GNU General Public License for more details.
  11  *
  12  * You should have received a copy of the GNU General Public License
  13  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  14  */
  15
  16 #ifdef __EMSCRIPTEN__
  17 #  include <emscripten.h>
  18 #endif
  19
  20 #include <stdio.h>
  21 #include <stdarg.h>
  22 #include <stdlib.h> // srand exit
  23 #include <assert.h>
  24 #include <time.h>
  25 #include "system.h"
  26 #include "input.h"
  27
  28 #include "player.h" // pl1 pl2
  29 #include "menu.h" // G_keyf
  30 #include "error.h" // logo
  31 #include "monster.h" // nomon
  32
  33 #include "files.h" // F_startup F_addwad F_initwads F_allocres
  34 #include "config.h" // CFG_args CFG_load CFG_save
  35 #include "args.h" // ARG_parse
  36 #include "memory.h" // M_startup
  37 #include "game.h" // G_init G_act
  38 #include "sound.h" // S_init S_done
  39 #include "music.h" // S_initmusic S_updatemusic S_donemusic
  40 #include "render.h" // R_init R_draw R_done
  41
  42 #define MODE_NONE 0
  43 #define MODE_OPENGL 1
  44 #define MODE_SOFTWARE 2
  45
  46 static clock_t ticks;
  47 static int quit = 0;
  48 static int mode = MODE_NONE;
  49 static int text_input = 0;
  50 static int width = 0;
  51 static int height = 0;
  52 static int fullscreen = 0;
  53 static void *softbuffer = NULL;
  54 static videomode_size_t vsize = { 320, 200, 0 };
  55 static videomode_t vlist = { 1, &vsize };
  56
  57 static const cfg_t arg[] = {
  58   {"file", NULL, Y_FILES},
  59   {"cheat", &cheat, Y_SW_ON},
  60 //  {"vga", &shot_vga, Y_SW_ON},
  61 //  {"musvol", &mus_vol, Y_WORD},
  62   {"mon", &nomon, Y_SW_OFF},
  63   {"warp", &_warp, Y_BYTE},
  64 //  {"config", NULL, cfg_file, Y_STRING},
  65   {NULL, NULL, 0} // end
  66 };
  67
  68 static const cfg_t cfg[] = {
  69 //  {"screenshot", &shot_vga, Y_SW_ON},
  70 //  {"music_volume", &mus_vol, Y_WORD},
  71 //  {"music_random", &music_random, Y_SW_ON},
  72 //  {"music_time", &music_time, Y_DWORD},
  73 //  {"music_fade", &music_fade, Y_DWORD},
  74   {"pl1_left", &pl1.kl, Y_KEY},
  75   {"pl1_right",&pl1.kr, Y_KEY},
  76   {"pl1_up", &pl1.ku, Y_KEY},
  77   {"pl1_down", &pl1.kd, Y_KEY},
  78   {"pl1_jump", &pl1.kj, Y_KEY},
  79   {"pl1_fire", &pl1.kf, Y_KEY},
  80   {"pl1_next", &pl1.kwr, Y_KEY},
  81   {"pl1_prev", &pl1.kwl, Y_KEY},
  82   {"pl1_use", &pl1.kp, Y_KEY},
  83   {"pl2_left", &pl2.kl, Y_KEY},
  84   {"pl2_right", &pl2.kr, Y_KEY},
  85   {"pl2_up", &pl2.ku, Y_KEY},
  86   {"pl2_down", &pl2.kd, Y_KEY},
  87   {"pl2_jump", &pl2.kj, Y_KEY},
  88   {"pl2_fire", &pl2.kf, Y_KEY},
  89   {"pl2_next", &pl2.kwr, Y_KEY},
  90   {"pl2_prev", &pl2.kwl, Y_KEY},
  91   {"pl2_use", &pl2.kp, Y_KEY},
  92   {NULL, NULL, 0} // end
  93 };
  94
  95 static void CFG_args (int argc, char **argv) {
  96   const cfg_t *list[] = { arg, R_args(), S_args(), MUS_args() };
  97   ARG_parse(argc, argv, 4, list);
  98 }
  99
 100 static void CFG_load (void) {
 101   const cfg_t *list[] = { cfg, R_conf(), S_conf(), MUS_conf() };
 102   CFG_read_config("default.cfg", 4, list);
 103   CFG_read_config("doom2d.cfg", 4, list);
 104 }
 105
 106 static void CFG_save (void) {
 107   const cfg_t *list[] = { cfg, R_conf(), S_conf(), MUS_conf() };
 108   CFG_update_config("doom2d.cfg", "doom2d.cfg", 4, list, "generated by doom2d, do not modify");
 109 }
 110
 111 /* --- error.h --- */
 112
 113 void logo (const char *s, ...) {
 114   va_list ap;
 115   va_start(ap, s);
 116   vprintf(s, ap);
 117   va_end(ap);
 118   fflush(stdout);
 119 }
 120
 121 void logo_gas (int cur, int all) {
 122   // stub
 123 }
 124
 125 void ERR_failinit (char *s, ...) {
 126   va_list ap;
 127   va_start(ap, s);
 128   vprintf(s, ap);
 129   va_end(ap);
 130   puts("");
 131   abort();
 132 }
 133
 134 void ERR_fatal (char *s, ...) {
 135   va_list ap;
 136   R_done();
 137   MUS_done();
 138   S_done();
 139   puts("\nCRITICAL ERROR:");
 140   va_start(ap, s);
 141   vprintf(s, ap);
 142   va_end(ap);
 143   puts("");
 144   abort();
 145 }
 146
 147 void ERR_quit (void) {
 148   quit = 1;
 149 }
 150
 151 /* --- system.h --- */
 152
 153 int Y_set_videomode_opengl (int w, int h, int fullscreen) {
 154   assert(w > 0);
 155   assert(h > 0);
 156   mode = MODE_OPENGL;
 157   width = w;
 158   height = h;
 159   return 1;
 160 }
 161
 162 int Y_set_videomode_software (int w, int h, int fullscreen) {
 163   assert(w > 0);
 164   assert(h > 0);
 165   void *buf = softbuffer ? realloc(softbuffer, w * h) : malloc(w * h);
 166   if (buf) {
 167     mode = MODE_SOFTWARE;
 168     softbuffer = buf;
 169     width = w;
 170     height = h;
 171   }
 172   return buf != NULL;
 173 }
 174
 175 const videomode_t *Y_get_videomode_list_opengl (int fullscreen) {
 176   return &vlist;
 177 }
 178
 179 const videomode_t *Y_get_videomode_list_software (int fullscreen) {
 180   return &vlist;
 181 }
 182
 183 void Y_get_videomode (int *w, int *h) {
 184   if (mode != MODE_NONE) {
 185     *w = width;
 186     *h = height;
 187   } else {
 188     *w = 0;
 189     *h = 0;
 190   }
 191 }
 192
 193 int Y_videomode_setted (void) {
 194   return mode != MODE_NONE;
 195 }
 196
 197 void Y_unset_videomode (void) {
 198   mode = MODE_NONE;
 199   free(softbuffer);
 200   softbuffer = NULL;
 201 }
 202
 203 void Y_set_fullscreen (int yes) {
 204   fullscreen = yes;
 205 }
 206
 207 int Y_get_fullscreen (void) {
 208   return (mode != MODE_NONE) && fullscreen;
 209 }
 210
 211 void Y_swap_buffers (void) {
 212   assert(mode == MODE_OPENGL);
 213 }
 214
 215 void Y_get_buffer (byte **buf, int *w, int *h, int *pitch) {
 216   assert(mode == MODE_SOFTWARE);
 217   // *buf = surf->pixels;
 218   *buf = NULL; // fix this
 219   *w = width;
 220   *h = height;
 221   *pitch = width;
 222 }
 223
 224 void Y_set_vga_palette (byte *vgapal) {
 225   int i;
 226   byte *p = vgapal;
 227   assert(vgapal != NULL);
 228   assert(mode == MODE_SOFTWARE);
 229 }
 230
 231 void Y_repaint_rect (int x, int y, int w, int h) {
 232   assert(mode == MODE_SOFTWARE);
 233 }
 234
 235 void Y_repaint (void) {
 236   assert(mode == MODE_SOFTWARE);
 237 }
 238
 239 void Y_enable_text_input (void) {
 240   text_input = 1;
 241 }
 242
 243 void Y_disable_text_input (void) {
 244   text_input = 0;
 245 }
 246
 247 /* --- main --- */
 248
 249 static void poll_events (void) {
 250   // stub
 251 }
 252
 253 static void step (void) {
 254   poll_events();
 255   MUS_update();
 256   clock_t t = clock();
 257   if ((t - ticks) * 1000 / CLOCKS_PER_SEC > DELAY) {
 258     ticks = t;
 259     G_act();
 260   }
 261   R_draw();
 262 }
 263
 264 int main (int argc, char *argv[]) {
 265   logo("main: initialize\n");
 266   // Player 1 defaults
 267   pl1.ku = KEY_KP_8;
 268   pl1.kd = KEY_KP_5;
 269   pl1.kl = KEY_KP_4;
 270   pl1.kr = KEY_KP_6;
 271   pl1.kf = KEY_PAGEDOWN;
 272   pl1.kj = KEY_DELETE;
 273   pl1.kwl = KEY_HOME;
 274   pl1.kwr = KEY_END;
 275   pl1.kp = KEY_KP_8;
 276   // Player 2 defaults
 277   pl2.ku = KEY_E;
 278   pl2.kd = KEY_D;
 279   pl2.kl = KEY_S;
 280   pl2.kr = KEY_F;
 281   pl2.kf = KEY_A;
 282   pl2.kj = KEY_Q;
 283   pl2.kwl = KEY_1;
 284   pl2.kwr = KEY_2;
 285   pl2.kp = KEY_E;
 286   //srand(SDL_GetTicks());
 287   F_addwad("doom2d.wad");
 288   CFG_args(argc, argv);
 289   CFG_load();
 290   F_initwads();
 291   S_init();
 292   MUS_init();
 293   R_init();
 294   G_init();
 295   ticks = clock();
 296 #ifdef __EMSCRIPTEN__
 297   emscripten_set_main_loop(step, 0, 1);
 298 #else
 299   while (!quit) {
 300     step();
 301   }
 302 #endif
 303   CFG_save();
 304   R_done();
 305   MUS_done();
 306   S_done();
 307   return 0;
 308 }