src/files.c

   1 /*
   2    Copyright (C) Prikol Software 1996-1997
   3    Copyright (C) Aleksey Volynskov 1996-1997
   4    Copyright (C) <ARembo@gmail.com> 2011
   5
   6    This file is part of the Doom2D:Rembo project.
   7
   8    Doom2D:Rembo is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License version 2 as
  10    published by the Free Software Foundation.
  11
  12    Doom2D:Rembo is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program; if not, see <http://www.gnu.org/licenses/> or
  19    write to the Free Software Foundation, Inc.,
  20    51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  21 */
  22
  23 #include "glob.h"
  24 #include <stdio.h>
  25 //#include <conio.h>
  26 #include <malloc.h>
  27 //#include <dos.h>
  28 #include <string.h>
  29 #include <stdlib.h>
  30 //#include <sys\stat.h>
  31 #include "vga.h"
  32 #include "error.h"
  33 #include "sound.h"
  34 //#include "snddrv.h"
  35 #include "memory.h"
  36 #include "view.h"
  37 #include "items.h"
  38 #include "switch.h"
  39 #include "files.h"
  40 #include "map.h"
  41
  42
  43 char *S_getinfo(void);
  44
  45 extern void *snd_drv;
  46
  47 typedef struct{
  48   byte n,i,v,d;
  49 }dmv;
  50
  51 byte seq[255],seqn;
  52 dmv *pat=NULL;
  53 unsigned *patp;
  54 void **dmi;
  55
  56 static int inum=0;
  57
  58 void G_savegame(FILE*);
  59 void W_savegame(FILE*);
  60 void DOT_savegame(FILE*);
  61 void SMK_savegame(FILE*);
  62 void FX_savegame(FILE*);
  63 void IT_savegame(FILE*);
  64 void MN_savegame(FILE*);
  65 void PL_savegame(FILE*);
  66 void SW_savegame(FILE*);
  67 void WP_savegame(FILE*);
  68
  69 void G_loadgame(FILE*);
  70 void W_loadgame(FILE*);
  71 void DOT_loadgame(FILE*);
  72 void SMK_loadgame(FILE*);
  73 void FX_loadgame(FILE*);
  74 void IT_loadgame(FILE*);
  75 void MN_loadgame(FILE*);
  76 void PL_loadgame(FILE*);
  77 void SW_loadgame(FILE*);
  78 void WP_loadgame(FILE*);
  79
  80 byte savname[7][24],savok[7];
  81
  82 int d_start,d_end,m_start,m_end,s_start,s_end,wad_num;
  83 mwad_t wad[MAX_WAD];
  84
  85 char wads[MAX_WADS][__MAX_PATH];
  86 static FILE* wadh[MAX_WADS];
  87
  88 char f_drive[__MAX_DRIVE],f_dir[__MAX_DIR],f_name[__MAX_FNAME],f_ext[__MAX_EXT],
  89   f_path[__MAX_PATH];
  90
  91 void F_startup(void) {
  92   logo("F_startup: настройка файловой системы\n");
  93   memset(wads,0,sizeof(wads));
  94 }
  95
  96 void F_getsavnames(void) {
  97
  98   int i; FILE *h;
  99   static char n[]="SAVGAME0.DAT";
 100   short ver;
 101
 102   for(i=0;i<7;++i) {
 103     n[7]=i+'0';memset(savname[i],0,24);savok[i]=0;
 104     if((h=fopen(n,"rb"))==NULL) continue; //if((h=open(n,O_RDONLY|O_BINARY))==-1) continue;
 105     myfread(savname[i],1,24,h);ver=-1;myfread(&ver,1,2,h);
 106     fclose(h);savname[i][23]=0;savok[i]=(ver==3)?1:0;//savok[i]=(ver==2)?1:0;
 107   }
 108 }
 109
 110 void F_savegame(int n,char *s) {
 111
 112   FILE* h;
 113   static char fn[]="SAVGAME0.DAT";
 114
 115   fn[7]=n+'0';
 116   if((h=fopen(fn,"wb"))==NULL) return;
 117   myfwrite(s,1,24,h);myfwrite("\3\0",1,2,h);//myfwrite("\2\0",1,2,h);
 118   G_savegame(h);
 119   W_savegame(h);
 120   DOT_savegame(h);
 121   SMK_savegame(h);
 122   FX_savegame(h);
 123   IT_savegame(h);
 124   MN_savegame(h);
 125   PL_savegame(h);
 126   SW_savegame(h);
 127   WP_savegame(h);
 128   fclose(h);
 129
 130 }
 131
 132 void F_loadgame(int n) {
 133   FILE* h;
 134   static char fn[]="SAVGAME0.DAT";
 135   short ver;
 136
 137   fn[7]=n+'0';
 138   if((h=fopen(fn,"rb"))==NULL) return;//if((h=open(fn,O_BINARY|O_RDONLY))==-1) return;
 139   fseek(h,24,SEEK_SET);myfread(&ver,1,2,h);if(ver!=3) return;//if(ver!=2) return;
 140   G_loadgame(h);
 141   W_loadgame(h);
 142   DOT_loadgame(h);
 143   SMK_loadgame(h);
 144   FX_loadgame(h);
 145   IT_loadgame(h);
 146   MN_loadgame(h);
 147   PL_loadgame(h);
 148   SW_loadgame(h);
 149   WP_loadgame(h);
 150   fclose(h);
 151 }
 152
 153 void F_addwad(char *fn) {
 154   int i;
 155
 156   for(i=0;i<MAX_WADS;++i) if(wads[i][0]==0) {
 157     strcpy(wads[i],fn);return;
 158   }
 159   ERR_failinit("Не могу добавить WAD %s",fn);
 160 }
 161
 162
 163 int myfilelength(FILE *h)
 164 {
 165     int pos = ftell(h);
 166     fseek (h, 0, SEEK_END);
 167     int len = ftell(h);
 168     fseek (h, pos, SEEK_SET);
 169     return len;
 170 }
 171
 172 extern void mysplitpath(const char* path, char* drv, char* dir, char* name, char* ext);
 173
 174 // build wad directory
 175 void F_initwads(void) {
 176   int i,j,k,p;
 177   FILE *h;
 178   char s[4];
 179   int n,o;
 180   wad_t w;
 181
 182   logo("F_initwads: подключение WAD-файлов\n");
 183   for(i=0;i<MAX_WAD;++i) wad[i].n[0]=0;
 184   logo("   подключается  %s\n",wads[0]);
 185   if((wadh[0]=h=fopen(wads[0],"rb"))==NULL)//if((wadh[0]=h=open(wads[0],O_RDWR|O_BINARY))==-1)
 186         ERR_failinit("Не могу открыть файл: %s",wads[0]);//sys_errlist[errno]);
 187   *s=0;myfread(s,1,4,h);
 188   if(strncmp(s,"IWAD",4)!=0 && strncmp(s,"PWAD",4)!=0)
 189         ERR_failinit("Нет подписи IWAD или PWAD");
 190   myfread(&n,1,4,h);myfread(&o,1,4,h);fseek(h,o,SEEK_SET);
 191   for(j=0,p=0;j<n;++j) {
 192         myfread(&w,1,16,h);
 193         if(p>=MAX_WAD) ERR_failinit("Слишком много элементов WAD'а");
 194         memcpy(wad[p].n,w.n,8);
 195         wad[p].o=w.o;wad[p].l=w.l;wad[p].f=0;
 196         ++p;
 197   }
 198   //fclose(h);
 199   for(i=1;i<MAX_WADS;++i) if(wads[i][0]!=0) {
 200
 201         logo("  подключается %s\n",wads[i]);
 202         if((wadh[i]=h=fopen(wads[i], "rb"))==NULL) //if((wadh[i]=h=open(wads[i],O_RDONLY|O_BINARY))==-1)
 203           ERR_failinit("Не могу открыть файл2:  %s",wads[i]);//sys_errlist[errno]);
 204         mysplitpath(wads[i],f_drive,f_dir,f_name,f_ext);
 205         if(strcasecmp(f_ext,".lmp")==0) {
 206           for(k=0;k<MAX_WAD;++k) if(strncasecmp(wad[k].n,f_name,8)==0)
 207                 {wad[k].o=0L;wad[k].l=myfilelength(h);wad[k].f=i;break;}
 208           if(k>=MAX_WAD) {
 209                 if(p>=MAX_WAD) ERR_failinit("Слишком много элементов WAD'а");
 210                 memset(wad[p].n,0,8);
 211                 strncpy(wad[p].n,f_name,8);
 212                 wad[p].o=0L;wad[p].l=myfilelength(h);wad[p].f=i;
 213                 ++p;
 214           }
 215           continue;
 216         }
 217         *s=0;myfread(s,1,4,h);
 218         if(strncmp(s,"IWAD",4)!=0 && strncmp(s,"PWAD",4)!=0)
 219           ERR_failinit("Нет подписи IWAD или PWAD");
 220     myfread(&n,1,4,h);myfread(&o,1,4,h);fseek(h,o,SEEK_SET);
 221     for(j=0;j<n;++j) {
 222           myfread(&w,1,16,h);
 223           for(k=0;k<MAX_WAD;++k) if(strncasecmp(wad[k].n,w.n,8)==0)
 224                 {wad[k].o=w.o;wad[k].l=w.l;wad[k].f=i;break;}
 225           if(k>=MAX_WAD) {
 226                 if(p>=MAX_WAD) ERR_failinit("Слишком много элементов WAD'а");
 227                 memcpy(wad[p].n,w.n,8);
 228                 wad[p].o=w.o;wad[p].l=w.l;wad[p].f=i;
 229                 ++p;
 230       }
 231     }
 232   }
 233   wad_num=p;
 234
 235 }
 236
 237 // allocate resources
 238 // (called from M_startup)
 239 void F_allocres(void) {
 240   d_start=F_getresid("D_START");
 241   d_end=F_getresid("D_END");
 242   m_start=F_getresid("M_START");
 243   m_end=F_getresid("M_END");
 244   s_start=F_getresid("S_START");
 245   s_end=F_getresid("S_END");
 246 }
 247
 248 // load resource
 249 void F_loadres(int r,void *p,dword o,dword l) {
 250
 251   int oo;
 252   FILE *fh;
 253
 254
 255   oo=ftell(fh=wadh[wad[r].f]);
 256
 257   if(fseek(fh,wad[r].o+o,SEEK_SET)!=0)
 258     ERR_fatal("Ошибка при чтении файла");
 259
 260   if((dword)myfreadc(p,1,l,fh)!=l)
 261     ERR_fatal("Ошибка при загрузке ресурса %.8s",wad[r].n);
 262
 263   fseek(fh,oo,SEEK_SET);
 264
 265 }
 266
 267
 268 void F_saveres(int r,void *p,dword o,dword l) {
 269
 270   int oo;
 271  FILE* fh;
 272   oo=ftell(fh=wadh[wad[r].f]);
 273   if(fseek(fh,wad[r].o+o,SEEK_SET)!=0)
 274     ERR_fatal("Ошибка при чтении файла");
 275   myfwrite(p,l,1,fh);
 276   fseek(fh,oo,SEEK_SET);
 277
 278 }
 279
 280 // get resource id
 281 int F_getresid(char *n) {
 282   int i;
 283
 284   for(i=0;i<wad_num;++i) if(strncasecmp(wad[i].n,n,8)==0) return i;
 285     ERR_fatal("F_getresid: ресурс %.8s не найден",n);
 286   return -1;
 287 }
 288
 289 // get resource id
 290 int F_findres(char *n) {
 291   int i;
 292
 293   for(i=0;i<wad_num;++i) if(strncasecmp(wad[i].n,n,8)==0) return i;
 294   return -1;
 295 }
 296
 297 void F_getresname(char *n,int r) {
 298   memcpy(n,wad[r].n,8);
 299 }
 300
 301 // get sprite id
 302 int F_getsprid(char n[4],int s,int d) {
 303   int i;
 304   byte a,b;
 305
 306   s+='A';d+='0';
 307   for(i=s_start+1;i<s_end;++i)
 308     if(strncasecmp(wad[i].n,n,4)==0 && (wad[i].n[4]==s || wad[i].n[6]==s)) {
 309       if(wad[i].n[4]==s) a=wad[i].n[5]; else a=0;
 310       if(wad[i].n[6]==s) b=wad[i].n[7]; else b=0;
 311       if(a=='0') return i;
 312       if(b=='0') return(i|0x8000);
 313       if(a==d) return i;
 314       if(b==d) return(i|0x8000);
 315     }
 316   ERR_fatal("F_getsprid: изображение %.4s%c%c не найдено",n,(byte)s,(byte)d);
 317   return -1;
 318 }
 319
 320 int F_getreslen(int r) {
 321   return wad[r].l;
 322 }
 323
 324 void F_nextmus(char *s) {
 325   int i;
 326   i=F_findres(s);
 327   if(i<=m_start || i>=m_end) i=m_start;
 328   for(++i;;++i) {
 329     if(i>=m_end) i=m_start+1;
 330
 331     if (strcasecmp(wad[i].n,"MENU") == 0 ||
 332         strcasecmp(wad[i].n,"INTERMUS") == 0 ||
 333         strcasecmp(wad[i].n,"\x8a\x8e\x8d\x85\x96\x0") == 0)
 334         continue;
 335
 336     if(strncasecmp(wad[i].n,"DMI",3)!=0) break;
 337   }
 338   memcpy(s,wad[i].n,8);
 339 }
 340
 341 void F_randmus(char *s) {
 342    int n = myrand(10);
 343    int i;
 344    for (i=0; i<n; i++) {
 345        F_nextmus(s);
 346    }
 347 }
 348
 349 // reads bytes from file until CR
 350 void F_readstr(FILE* h,char *s,int m) {
 351   int i;
 352   static char c;
 353
 354   for(i=0;;) {
 355     c=13;
 356     myfreadc(&c,1,1,h);
 357     if(c==13) break;
 358     if(i<m) s[i++]=c;
 359   }
 360   s[i]=0;
 361 }
 362
 363 // reads bytes from file until NUL
 364 void F_readstrz(FILE* h,char *s,int m) {
 365   int i;
 366   static char c;
 367
 368   for(i=0;;) {
 369     c=0;
 370     myfreadc(&c,1,1,h);
 371     if(c==0) break;
 372     if(i<m) s[i++]=c;
 373   }
 374   s[i]=0;
 375 }
 376
 377 map_block_t blk;
 378
 379 void F_loadmap(char n[8]) {
 380
 381   int r;
 382   FILE *h;
 383   map_header_t hdr;
 384   int o;
 385
 386   W_init();
 387   r=F_getresid(n);
 388   fseek(h=wadh[wad[r].f],wad[r].o,SEEK_SET);
 389   myfread(&hdr,1,sizeof(hdr),h);
 390   if(memcmp(hdr.id,"Doom2D\x1A",8)!=0)
 391         ERR_fatal("%.8s не является уровнем",n);
 392   for(;;) {
 393         myfread(&blk,1,sizeof(blk),h);
 394         if(blk.t==MB_END) break;
 395         if(blk.t==MB_COMMENT)
 396           {fseek(h,blk.sz,SEEK_CUR);continue;}
 397         o=ftell(h)+blk.sz;
 398         if(!G_load(h))
 399         if(!W_load(h))
 400         if(!IT_load(h))
 401         if(!SW_load(h))
 402           ERR_fatal("Неизвестный блок %d(%d) в уровне %.8s",blk.t,blk.st,n);
 403         fseek(h,o,SEEK_SET);
 404   }
 405
 406 }
 407
 408 /*void F_freemus(void) {
 409
 410   int i;
 411
 412   if(!pat) return;
 413   S_stopmusic();
 414   free(pat);free(patp);
 415   for(i=0;i<inum;++i) if(dmi[i]!=NULL) free(dmi[i]);
 416   free(dmi);
 417   pat=NULL;
 418
 419 }
 420 */
 421
 422 /*void F_loadmus(char n[8]) {
 423   int r,i,j;
 424   FILE *h;
 425   int o;
 426   struct{
 427         char id[4];
 428         byte ver,pat;
 429         word psz;
 430   }d;
 431   struct{byte t;char n[13];word r;}di;
 432
 433   if((r=F_findres(n))==-1) return;
 434   fseek(h=wadh[wad[r].f],wad[r].o,SEEK_SET);
 435   myfread(&d,1,sizeof(d),h);
 436   if(memcmp(d.id,"DMM",4)!=0) return;
 437   if(!(pat=malloc(d.psz<<2))) return;
 438   myfread(pat,1,d.psz<<2,h);
 439   myfread(&seqn,1,1,h);if(seqn) myfread(seq,1,seqn,h);
 440   inum=0;myfread(&inum,1,1,h);
 441   if(!(dmi=malloc(inum*4))) {free(pat);pat=NULL;return;}
 442   if(!(patp=malloc((word)d.pat*32))) {free(pat);free(dmi);pat=NULL;return;}
 443   for(i=0;i<inum;++i) {
 444         dmi[i]=NULL;
 445         myfread(&di,1,16,h);o=ftell(h);
 446         for(r=0;r<12;++r) if(di.n[r]=='.') di.n[r]=0;
 447         if((r=F_findres(di.n))==-1) continue;
 448         if(!(dmi[i]=malloc(wad[r].l+8))) continue;
 449         memset(dmi[i],0,16);
 450         F_loadres(r,dmi[i],0,2);
 451         F_loadres(r,(int*)dmi[i]+1,2,2);
 452         F_loadres(r,(int*)dmi[i]+2,4,2);
 453         F_loadres(r,(int*)dmi[i]+3,6,2);
 454         F_loadres(r,(int*)dmi[i]+4,8,wad[r].l-8);
 455         fseek(h,o,SEEK_SET);
 456   }
 457   for(i=r=0,j=(word)d.pat<<3;i<j;++i) {
 458         patp[i]=r<<2;
 459         while(pat[r++].v!=0x80);
 460   }
 461  }
 462 */
 463