src/switch.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 <string.h>
  25 #include "view.h"
  26 #include "bmap.h"
  27 #include "switch.h"
  28 #include "player.h"
  29 #include "misc.h"
  30 #include "map.h"
  31
  32 #define MAXSW 100
  33
  34 extern map_block_t blk;
  35
  36 #pragma pack(1)
  37 typedef struct{
  38   byte x,y;
  39   byte t,tm;
  40   byte a,b,c,d;
  41   byte f;
  42 }sw_t;
  43 #pragma pack()
  44
  45 static sw_t sw[MAXSW];
  46
  47 static void *sndswn,*sndswx,*sndnoway,*sndbdo,*sndbdc,*sndnotele;
  48 static int swsnd;
  49
  50 int sw_secrets;
  51
  52 void SW_savegame(FILE* h) {
  53   int n;
  54
  55   for(n=MAXSW;--n;) if(sw[n].t) break;
  56   ++n;myfwrite(&n,1,4,h);myfwrite(sw,1,n*sizeof(sw[0]),h);
  57   myfwrite(&sw_secrets,1,4,h);
  58 }
  59
  60 void SW_loadgame(FILE* h) {
  61   int n;
  62
  63   myfread(&n,1,4,h);myfread(sw,1,n*sizeof(sw[0]),h);
  64   myfread(&sw_secrets,1,4,h);
  65 }
  66
  67 int SW_load(FILE* h) {
  68   int i;
  69
  70   switch(blk.t) {
  71         case MB_SWITCH2:
  72           sw_secrets=0;
  73           for(i=0;i<MAXSW && blk.sz>0;++i,blk.sz-=sizeof(sw_t)) {
  74                 myfread(sw+i,1,sizeof(sw_t),h);
  75                 sw[i].tm=0;sw[i].d=0;
  76                 sw[i].f|=0x80;
  77                 if(sw[i].t==SW_SECRET) ++sw_secrets;
  78           }
  79           return 1;
  80   }return 0;
  81 }
  82
  83 void SW_alloc(void) {
  84   sndswn=Z_getsnd("SWTCHN");
  85   sndswx=Z_getsnd("SWTCHX");
  86   sndnoway=Z_getsnd("NOWAY");
  87   sndbdo=Z_getsnd("BDOPN");
  88   sndbdc=Z_getsnd("BDCLS");
  89   sndnotele=Z_getsnd("NOTELE");
  90 }
  91
  92 void SW_init(void) {
  93   int i;
  94
  95   for(i=0;i<MAXSW;++i) sw[i].t=0;
  96   swsnd=0;
  97 }
  98
  99 static byte cht,chto,chf,f_ch;
 100
 101 static void door(byte x,byte y) {
 102   byte ex;
 103
 104   if(x>=FLDW || y>=FLDH) return;
 105   if(fld[y][x]!=cht) return;
 106   ex=x+1;
 107   for(;x && fld[y][x-1]==cht;--x);
 108   for(;ex<FLDW && fld[y][ex]==cht;++ex);
 109   memset(fld[y]+x,chto,ex-x);
 110   if(f_ch) memset(fldf[y]+x,chf,ex-x);
 111   for(;x<ex;++x) {
 112         door(x,y-1);
 113         door(x,y+1);
 114   }
 115 }
 116
 117 void Z_water_trap(obj_t *o) {
 118   int i,j,sx,sy,x,y;
 119
 120   if((y=o->y)>=FLDH*CELH+o->h) return;
 121   if((x=o->x)<0 || o->x>FLDW*CELW) return;
 122   sx=(x-o->r)/CELW;
 123   sy=(y-o->h+1)/CELH;
 124   x=(x+o->r)/CELW;
 125   y=(y-o->h/2)/CELH;
 126   for(i=sx;i<=x;++i)
 127         for(j=sy;j<=y;++j)
 128           if(fld[j][i]==5) {
 129                 cht=5;chto=255;f_ch=0;
 130                 door(i,j);
 131           }
 132 }
 133
 134 void Z_untrap(byte t) {
 135   byte *p;
 136   word n;
 137
 138   for(p=(byte*)fld,n=FLDW*FLDH;n;--n,++p)
 139         if(*p==255) *p=t;
 140 }
 141
 142 static void opendoor(int i) {
 143   int j;
 144
 145   swsnd=Z_sound(sndbdo,128);
 146   j=fldf[sw[i].b][sw[i].a];
 147   cht=2;chto=3;chf=0;f_ch=1;
 148   door(sw[i].a,sw[i].b);
 149   fldf[sw[i].b][sw[i].a]=j;
 150   fld_need_remap=1;
 151 }
 152
 153 static int shutdoor(int i) {
 154   int j;
 155
 156   cht=3;chto=255;chf=fldf[sw[i].b][sw[i].a];f_ch=1;
 157   door(sw[i].a,sw[i].b);
 158   cht=255;
 159   if(Z_chktrap(0,0,-3,HIT_SOME)) {
 160         j=fldf[sw[i].b][sw[i].a];
 161         chto=3;chf=0;f_ch=1;
 162         door(sw[i].a,sw[i].b);
 163         fldf[sw[i].b][sw[i].a]=j;
 164         return 0;
 165   }
 166   chto=2;
 167   door(sw[i].a,sw[i].b);
 168   fld_need_remap=1;
 169   swsnd=Z_sound(sndbdc,128);
 170   return 1;
 171 }
 172
 173 void SW_act(void) {
 174   int i;
 175
 176   if(swsnd) --swsnd;
 177   for(i=0;i<MAXSW;++i) if(sw[i].t) {
 178     if(sw[i].tm) --sw[i].tm;
 179     switch(sw[i].t) {
 180       case SW_DOOR5: case SW_DOOR: case SW_SHUTDOOR:
 181         if(!sw[i].d) break;
 182         if(fld[sw[i].b][sw[i].a]!=3) {sw[i].d=0;break;}
 183         if(--sw[i].d==0) if(!shutdoor(i)) sw[i].d=9;
 184         break;
 185       case SW_TRAP:
 186         if(!sw[i].d) break;
 187         if(fld[sw[i].b][sw[i].a]!=2) {sw[i].d=0;break;}
 188         if(--sw[i].d==0) {opendoor(i);sw[i].tm=18;}
 189         break;
 190     }
 191   }
 192 }
 193
 194 static int doortime(int t) {
 195   switch(t) {
 196         case SW_DOOR5:          return 90;
 197   }
 198   return 0;
 199 }
 200
 201 void SW_cheat_open(void) {
 202   int i;
 203
 204   for(i=0;i<MAXSW;++i) if(sw[i].t && !sw[i].tm) switch(sw[i].t) {
 205         case SW_DOOR: case SW_DOOR5:
 206         case SW_OPENDOOR:
 207           if(fld[sw[i].b][sw[i].a]!=2) break;
 208           SW_press(sw[i].x*CELW+4,sw[i].y*CELH+4,1,1,0xFF,-3);
 209           break;
 210   }
 211 }
 212
 213 int SW_press(int x,int y,int r,int h,byte t,int o) {
 214   int sx,sy,i,p;
 215
 216   sx=(x-r)/CELW;sy=(y-h+1)/CELH;
 217   x=(x+r)/CELW;y/=CELH;
 218   for(i=p=0;i<MAXSW;++i) if(sw[i].t && !sw[i].tm) {
 219     if(sw[i].x>=sx && sw[i].x<=x && sw[i].y>=sy && sw[i].y<=y && ((sw[i].f&0x8F)&t)) {
 220       if(sw[i].f&0x70) if((sw[i].f&(t&0x70))!=(sw[i].f&0x70)) continue;
 221       switch(sw[i].t) {
 222                 case SW_EXIT:
 223                   g_exit=1;sw[i].tm=9;swsnd=Z_sound(sndswx,128);break;
 224                 case SW_EXITS:
 225                   g_exit=2;sw[i].tm=9;swsnd=Z_sound(sndswx,128);break;
 226                 case SW_DOOR: case SW_DOOR5:
 227                   switch(fld[sw[i].b][sw[i].a]) {
 228                         case 2:
 229                           opendoor(i);sw[i].tm=9;sw[i].d=doortime(sw[i].t);break;
 230                         case 3:
 231                           if(shutdoor(i)) {sw[i].tm=9;sw[i].d=0;}
 232                           else {
 233                             if(!swsnd) swsnd=Z_sound(sndnoway,128);
 234                             sw[i].d=2;
 235                           }break;
 236                   }break;
 237                 case SW_PRESS:
 238                   sw[i].tm=9;
 239                   SW_press((dword)sw[i].a*8+4,(dword)sw[i].b*8+12,8,16,(t&0x70)|0x80,o);
 240                   break;
 241                 case SW_TELE:
 242                   if(o < -2) break;
 243                   if(!Z_canfit((dword)sw[i].a*8+4,(dword)sw[i].b*8+7,r,h)) {
 244                     if(!swsnd) swsnd=Z_sound(sndnotele,128);
 245                     break;
 246                   }Z_teleobj(o,(dword)sw[i].a*8+4,(dword)sw[i].b*8+7);
 247                   sw[i].tm=1;
 248                   break;
 249                 case SW_OPENDOOR:
 250                   if(fld[sw[i].b][sw[i].a]!=2) break;
 251                   opendoor(i);
 252                   sw[i].tm=1;
 253                   break;
 254                 case SW_SHUTDOOR:
 255                   if(fld[sw[i].b][sw[i].a]!=3) break;
 256                   if(shutdoor(i)) {sw[i].tm=1;sw[i].d=0;}
 257                   else {
 258                     if(!swsnd) swsnd=Z_sound(sndnoway,128);
 259                     sw[i].d=2;
 260                   }break;
 261                 case SW_SHUTTRAP: case SW_TRAP:
 262                   if(fld[sw[i].b][sw[i].a]!=3) break;
 263                   cht=3;chto=255;chf=fldf[sw[i].b][sw[i].a];f_ch=1;
 264                   door(sw[i].a,sw[i].b);
 265                   Z_chktrap(1,100,-3,HIT_TRAP);
 266                   cht=255;chto=2;
 267                   door(sw[i].a,sw[i].b);
 268                   fld_need_remap=1;
 269                   swsnd=Z_sound(sndswn,128);
 270                   sw[i].tm=1;sw[i].d=20;
 271                   break;
 272                 case SW_LIFT:
 273                   if(fld[sw[i].b][sw[i].a]==10) {
 274                     cht=10;chto=9;f_ch=0;
 275                   }else if(fld[sw[i].b][sw[i].a]==9) {
 276                     cht=9;chto=10;f_ch=0;
 277                   }else break;
 278                   door(sw[i].a,sw[i].b);
 279                   fld_need_remap=1;
 280                   swsnd=Z_sound(sndswx,128);
 281                   sw[i].tm=9;
 282                   break;
 283                 case SW_LIFTUP:
 284                   if(fld[sw[i].b][sw[i].a]!=10) break;
 285                   cht=10;chto=9;f_ch=0;
 286                   door(sw[i].a,sw[i].b);
 287                   fld_need_remap=1;
 288                   swsnd=Z_sound(sndswx,128);
 289                   sw[i].tm=1;
 290                   break;
 291                 case SW_LIFTDOWN:
 292                   if(fld[sw[i].b][sw[i].a]!=9) break;
 293                   cht=9;chto=10;f_ch=0;
 294                   door(sw[i].a,sw[i].b);
 295                   fld_need_remap=1;
 296                   swsnd=Z_sound(sndswx,128);
 297                   sw[i].tm=1;
 298                   break;
 299                 case SW_SECRET:
 300                   if(o!=-1 && o!=-2) break;
 301                   if(o==-1) ++pl1.secrets;
 302                   else ++pl2.secrets;
 303                   sw[i].tm=1;sw[i].t=0;break;
 304       }
 305       if(sw[i].tm)
 306         {fldb[sw[i].y][sw[i].x]=walswp[fldb[sw[i].y][sw[i].x]];p=1;}
 307       if(sw[i].tm==1) sw[i].tm=0;
 308     }
 309   }
 310   return p;
 311 }