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 <string.h>
  26 #include <stdlib.h>
  27 #include <sys/stat.h>
  28 #include "error.h"
  29 #include "view.h"
  30 #include "items.h"
  31 #include "switch.h"
  32 #include "files.h"
  33 #include "map.h"
  34
  35 char *S_getinfo(void);
  36
  37 extern void *snd_drv;
  38
  39 typedef struct{
  40   byte n,i,v,d;
  41 }dmv;
  42
  43 byte seq[255],seqn;
  44 dmv *pat=NULL;
  45 unsigned *patp;
  46 void **dmi;
  47
  48 static int inum=0;
  49
  50 void G_savegame(FILE*);
  51 void W_savegame(FILE*);
  52 void DOT_savegame(FILE*);
  53 void SMK_savegame(FILE*);
  54 void FX_savegame(FILE*);
  55 void IT_savegame(FILE*);
  56 void MN_savegame(FILE*);
  57 void PL_savegame(FILE*);
  58 void SW_savegame(FILE*);
  59 void WP_savegame(FILE*);
  60
  61 void G_loadgame(FILE*);
  62 void W_loadgame(FILE*);
  63 void DOT_loadgame(FILE*);
  64 void SMK_loadgame(FILE*);
  65 void FX_loadgame(FILE*);
  66 void IT_loadgame(FILE*);
  67 void MN_loadgame(FILE*);
  68 void PL_loadgame(FILE*);
  69 void SW_loadgame(FILE*);
  70 void WP_loadgame(FILE*);
  71
  72 byte savname[7][24],savok[7];
  73
  74 int d_start,d_end,m_start,m_end,s_start,s_end,wad_num;
  75 mwad_t wad[MAX_WAD];
  76
  77 char wads[MAX_WADS][__MAX_PATH];
  78 static FILE* wadh[MAX_WADS];
  79
  80 char f_drive[__MAX_DRIVE],f_dir[__MAX_DIR],f_name[__MAX_FNAME],f_ext[__MAX_EXT],
  81   f_path[__MAX_PATH];
  82
  83 void F_startup(void) {
  84   logo("F_startup: настройка файловой системы\n");
  85   memset(wads,0,sizeof(wads));
  86 }
  87
  88 char *getsavfpname(int n, int ro)
  89 {
  90   static char fn[]="savgame0.dat";
  91   fn[7]=n+'0';
  92 #ifndef WIN32
  93   static char p[100];
  94   char *e = getenv("HOME");
  95   strncpy(p,e,60);
  96   strcat(p,"/.doom2d-rembo");
  97   if (!ro) mkdir(p, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
  98   strcat(p,"/");
  99   strcat(p,fn);
 100 #else
 101   strcpy(p,fn);
 102 #endif
 103   return p;
 104 }
 105
 106 void F_getsavnames(void) {
 107
 108   int i; FILE *h;
 109   short ver;
 110   char *p;
 111
 112   for(i=0;i<7;++i) {
 113     p = getsavfpname(i,1);
 114     memset(savname[i],0,24);savok[i]=0;
 115     if((h=fopen(p,"rb"))==NULL) continue; //if((h=open(n,O_RDONLY|O_BINARY))==-1) continue;
 116     myfread(savname[i],1,24,h);ver=-1;myfread(&ver,1,2,h);
 117     fclose(h);savname[i][23]=0;savok[i]=(ver==3)?1:0;//savok[i]=(ver==2)?1:0;
 118   }
 119 }
 120
 121 void F_savegame(int n,char *s) {
 122
 123   FILE* h;
 124   char *p;
 125   p=getsavfpname(n,0);
 126   if((h=fopen(p,"wb"))==NULL) return;
 127   myfwrite(s,1,24,h);myfwrite("\3\0",1,2,h);//myfwrite("\2\0",1,2,h);
 128   G_savegame(h);
 129   W_savegame(h);
 130   DOT_savegame(h);
 131   SMK_savegame(h);
 132   FX_savegame(h);
 133   IT_savegame(h);
 134   MN_savegame(h);
 135   PL_savegame(h);
 136   SW_savegame(h);
 137   WP_savegame(h);
 138   fclose(h);
 139 }
 140
 141 void F_loadgame(int n) {
 142   FILE* h;
 143   short ver;
 144   char *p;
 145   p=getsavfpname(n,1);
 146
 147   if((h=fopen(p,"rb"))==NULL) return;//if((h=open(fn,O_BINARY|O_RDONLY))==-1) return;
 148   fseek(h,24,SEEK_SET);myfread(&ver,1,2,h);if(ver!=3) return;//if(ver!=2) return;
 149   G_loadgame(h);
 150   W_loadgame(h);
 151   DOT_loadgame(h);
 152   SMK_loadgame(h);
 153   FX_loadgame(h);
 154   IT_loadgame(h);
 155   MN_loadgame(h);
 156   PL_loadgame(h);
 157   SW_loadgame(h);
 158   WP_loadgame(h);
 159   fclose(h);
 160 }
 161
 162 void F_addwad(char *fn) {
 163   int i;
 164
 165   for(i=0;i<MAX_WADS;++i) if(wads[i][0]==0) {
 166     strcpy(wads[i],fn);return;
 167   }
 168   ERR_failinit("Не могу добавить WAD %s",fn);
 169 }
 170
 171
 172 int myfilelength(FILE *h)
 173 {
 174     int pos = ftell(h);
 175     fseek (h, 0, SEEK_END);
 176     int len = ftell(h);
 177     fseek (h, pos, SEEK_SET);
 178     return len;
 179 }
 180
 181 extern void mysplitpath(const char* path, char* drv, char* dir, char* name, char* ext);
 182
 183 // build wad directory
 184 void F_initwads(void) {
 185   int i,j,k,p;
 186   FILE *h;
 187   char s[4];
 188   int n,o;
 189   wad_t w;
 190
 191   logo("F_initwads: подключение WAD-файлов\n");
 192   for(i=0;i<MAX_WAD;++i) wad[i].n[0]=0;
 193   logo("   подключается  %s\n",wads[0]);
 194   if((wadh[0]=h=fopen(wads[0],"rb"))==NULL)//if((wadh[0]=h=open(wads[0],O_RDWR|O_BINARY))==-1)
 195         ERR_failinit("Не могу открыть файл: %s",wads[0]);//sys_errlist[errno]);
 196   *s=0;myfread(s,1,4,h);
 197   if(strncmp(s,"IWAD",4)!=0 && strncmp(s,"PWAD",4)!=0)
 198         ERR_failinit("Нет подписи IWAD или PWAD");
 199   myfread(&n,1,4,h);myfread(&o,1,4,h);fseek(h,o,SEEK_SET);
 200   for(j=0,p=0;j<n;++j) {
 201         myfread(&w,1,16,h);
 202         if(p>=MAX_WAD) ERR_failinit("Слишком много элементов WAD'а");
 203         memcpy(wad[p].n,w.n,8);
 204         wad[p].o=w.o;wad[p].l=w.l;wad[p].f=0;
 205         ++p;
 206   }
 207   //fclose(h);
 208   for(i=1;i<MAX_WADS;++i) if(wads[i][0]!=0) {
 209
 210         logo("  подключается %s\n",wads[i]);
 211         if((wadh[i]=h=fopen(wads[i], "rb"))==NULL) //if((wadh[i]=h=open(wads[i],O_RDONLY|O_BINARY))==-1)
 212           ERR_failinit("Не могу открыть файл2:  %s",wads[i]);//sys_errlist[errno]);
 213         mysplitpath(wads[i],f_drive,f_dir,f_name,f_ext);
 214         if(strcasecmp(f_ext,".lmp")==0) {
 215           for(k=0;k<MAX_WAD;++k) if(strncasecmp(wad[k].n,f_name,8)==0)
 216                 {wad[k].o=0L;wad[k].l=myfilelength(h);wad[k].f=i;break;}
 217           if(k>=MAX_WAD) {
 218                 if(p>=MAX_WAD) ERR_failinit("Слишком много элементов WAD'а");
 219                 memset(wad[p].n,0,8);
 220                 strncpy(wad[p].n,f_name,8);
 221                 wad[p].o=0L;wad[p].l=myfilelength(h);wad[p].f=i;
 222                 ++p;
 223           }
 224           continue;
 225         }
 226         *s=0;myfread(s,1,4,h);
 227         if(strncmp(s,"IWAD",4)!=0 && strncmp(s,"PWAD",4)!=0)
 228           ERR_failinit("Нет подписи IWAD или PWAD");
 229     myfread(&n,1,4,h);myfread(&o,1,4,h);fseek(h,o,SEEK_SET);
 230     for(j=0;j<n;++j) {
 231           myfread(&w,1,16,h);
 232           for(k=0;k<MAX_WAD;++k) if(strncasecmp(wad[k].n,w.n,8)==0)
 233                 {wad[k].o=w.o;wad[k].l=w.l;wad[k].f=i;break;}
 234           if(k>=MAX_WAD) {
 235                 if(p>=MAX_WAD) ERR_failinit("Слишком много элементов WAD'а");
 236                 memcpy(wad[p].n,w.n,8);
 237                 wad[p].o=w.o;wad[p].l=w.l;wad[p].f=i;
 238                 ++p;
 239       }
 240     }
 241   }
 242   wad_num=p;
 243
 244 }
 245
 246 // allocate resources
 247 // (called from M_startup)
 248 void F_allocres(void) {
 249   d_start=F_getresid("D_START");
 250   d_end=F_getresid("D_END");
 251   m_start=F_getresid("M_START");
 252   m_end=F_getresid("M_END");
 253   s_start=F_getresid("S_START");
 254   s_end=F_getresid("S_END");
 255 }
 256
 257 // load resource
 258 void F_loadres(int r,void *p,dword o,dword l) {
 259
 260   int oo;
 261   FILE *fh;
 262
 263
 264   oo=ftell(fh=wadh[wad[r].f]);
 265
 266   if(fseek(fh,wad[r].o+o,SEEK_SET)!=0)
 267     ERR_fatal("Ошибка при чтении файла");
 268
 269   if((dword)myfreadc(p,1,l,fh)!=l)
 270     ERR_fatal("Ошибка при загрузке ресурса %.8s",wad[r].n);
 271
 272   fseek(fh,oo,SEEK_SET);
 273
 274 }
 275
 276
 277 void F_saveres(int r,void *p,dword o,dword l) {
 278
 279   int oo;
 280  FILE* fh;
 281   oo=ftell(fh=wadh[wad[r].f]);
 282   if(fseek(fh,wad[r].o+o,SEEK_SET)!=0)
 283     ERR_fatal("Ошибка при чтении файла");
 284   myfwrite(p,l,1,fh);
 285   fseek(fh,oo,SEEK_SET);
 286
 287 }
 288
 289 // get resource id
 290 int F_getresid(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     ERR_fatal("F_getresid: ресурс %.8s не найден",n);
 295   return -1;
 296 }
 297
 298 // get resource id
 299 int F_findres(char *n) {
 300   int i;
 301
 302   for(i=0;i<wad_num;++i) if(strncasecmp(wad[i].n,n,8)==0) return i;
 303   return -1;
 304 }
 305
 306 void F_getresname(char *n,int r) {
 307   memcpy(n,wad[r].n,8);
 308 }
 309
 310 // get sprite id
 311 int F_getsprid(char n[4],int s,int d) {
 312   int i;
 313   byte a,b;
 314
 315   s+='A';d+='0';
 316   for(i=s_start+1;i<s_end;++i)
 317     if(strncasecmp(wad[i].n,n,4)==0 && (wad[i].n[4]==s || wad[i].n[6]==s)) {
 318       if(wad[i].n[4]==s) a=wad[i].n[5]; else a=0;
 319       if(wad[i].n[6]==s) b=wad[i].n[7]; else b=0;
 320       if(a=='0') return i;
 321       if(b=='0') return(i|0x8000);
 322       if(a==d) return i;
 323       if(b==d) return(i|0x8000);
 324     }
 325   ERR_fatal("F_getsprid: изображение %.4s%c%c не найдено",n,(byte)s,(byte)d);
 326   return -1;
 327 }
 328
 329 int F_getreslen(int r) {
 330   return wad[r].l;
 331 }
 332
 333 void F_nextmus(char *s) {
 334   int i;
 335   i=F_findres(s);
 336   if(i<=m_start || i>=m_end) i=m_start;
 337   for(++i;;++i) {
 338     if(i>=m_end) i=m_start+1;
 339
 340     if (strcasecmp(wad[i].n,"MENU") == 0 ||
 341         strcasecmp(wad[i].n,"INTERMUS") == 0 ||
 342         strcasecmp(wad[i].n,"\x8a\x8e\x8d\x85\x96\x0") == 0)
 343         continue;
 344
 345     if(strncasecmp(wad[i].n,"DMI",3)!=0) break;
 346   }
 347   memcpy(s,wad[i].n,8);
 348 }
 349
 350 void F_randmus(char *s) {
 351    int n = myrand(10);
 352    int i;
 353    for (i=0; i<n; i++) {
 354        F_nextmus(s);
 355    }
 356 }
 357
 358 // reads bytes from file until CR
 359 void F_readstr(FILE* h,char *s,int m) {
 360   int i;
 361   static char c;
 362
 363   for(i=0;;) {
 364     c=13;
 365     myfreadc(&c,1,1,h);
 366     if(c==13) break;
 367     if(i<m) s[i++]=c;
 368   }
 369   s[i]=0;
 370 }
 371
 372 // reads bytes from file until NUL
 373 void F_readstrz(FILE* h,char *s,int m) {
 374   int i;
 375   static char c;
 376
 377   for(i=0;;) {
 378     c=0;
 379     myfreadc(&c,1,1,h);
 380     if(c==0) break;
 381     if(i<m) s[i++]=c;
 382   }
 383   s[i]=0;
 384 }
 385
 386 map_block_t blk;
 387
 388 void F_loadmap(char n[8]) {
 389
 390   int r;
 391   FILE *h;
 392   map_header_t hdr;
 393   int o;
 394
 395   W_init();
 396   r=F_getresid(n);
 397   fseek(h=wadh[wad[r].f],wad[r].o,SEEK_SET);
 398   myfread(&hdr,1,sizeof(hdr),h);
 399   if(memcmp(hdr.id,"Doom2D\x1A",8)!=0)
 400         ERR_fatal("%.8s не является уровнем",n);
 401   for(;;) {
 402         myfread(&blk,1,sizeof(blk),h);
 403         if(blk.t==MB_END) break;
 404         if(blk.t==MB_COMMENT)
 405           {fseek(h,blk.sz,SEEK_CUR);continue;}
 406         o=ftell(h)+blk.sz;
 407         if(!G_load(h))
 408         if(!W_load(h))
 409         if(!IT_load(h))
 410         if(!SW_load(h))
 411           ERR_fatal("Неизвестный блок %d(%d) в уровне %.8s",blk.t,blk.st,n);
 412         fseek(h,o,SEEK_SET);
 413   }
 414
 415 }
 416
 417 /*void F_freemus(void) {
 418
 419   int i;
 420
 421   if(!pat) return;
 422   S_stopmusic();
 423   free(pat);free(patp);
 424   for(i=0;i<inum;++i) if(dmi[i]!=NULL) free(dmi[i]);
 425   free(dmi);
 426   pat=NULL;
 427
 428 }
 429 */
 430
 431 /*void F_loadmus(char n[8]) {
 432   int r,i,j;
 433   FILE *h;
 434   int o;
 435   struct{
 436         char id[4];
 437         byte ver,pat;
 438         word psz;
 439   }d;
 440   struct{byte t;char n[13];word r;}di;
 441
 442   if((r=F_findres(n))==-1) return;
 443   fseek(h=wadh[wad[r].f],wad[r].o,SEEK_SET);
 444   myfread(&d,1,sizeof(d),h);
 445   if(memcmp(d.id,"DMM",4)!=0) return;
 446   if(!(pat=malloc(d.psz<<2))) return;
 447   myfread(pat,1,d.psz<<2,h);
 448   myfread(&seqn,1,1,h);if(seqn) myfread(seq,1,seqn,h);
 449   inum=0;myfread(&inum,1,1,h);
 450   if(!(dmi=malloc(inum*4))) {free(pat);pat=NULL;return;}
 451   if(!(patp=malloc((word)d.pat*32))) {free(pat);free(dmi);pat=NULL;return;}
 452   for(i=0;i<inum;++i) {
 453         dmi[i]=NULL;
 454         myfread(&di,1,16,h);o=ftell(h);
 455         for(r=0;r<12;++r) if(di.n[r]=='.') di.n[r]=0;
 456         if((r=F_findres(di.n))==-1) continue;
 457         if(!(dmi[i]=malloc(wad[r].l+8))) continue;
 458         memset(dmi[i],0,16);
 459         F_loadres(r,dmi[i],0,2);
 460         F_loadres(r,(int*)dmi[i]+1,2,2);
 461         F_loadres(r,(int*)dmi[i]+2,4,2);
 462         F_loadres(r,(int*)dmi[i]+3,6,2);
 463         F_loadres(r,(int*)dmi[i]+4,8,wad[r].l-8);
 464         fseek(h,o,SEEK_SET);
 465   }
 466   for(i=r=0,j=(word)d.pat<<3;i<j;++i) {
 467         patp[i]=r<<2;
 468         while(pat[r++].v!=0x80);
 469   }
 470  }
 471 */
 472