src/items.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 <stdlib.h>
  25 #include "error.h"
  26 #include "view.h"
  27 #include "items.h"
  28 #include "fx.h"
  29 #include "player.h"
  30 #include "monster.h"
  31 #include "things.h"
  32 #include "misc.h"
  33 #include "map.h"
  34 #include "my.h"
  35 #include "files.h"
  36 #include "game.h"
  37 item_t it[MAXITEM];
  38
  39 static void *snd[4];
  40 static int tsndtm, rsndtm;
  41
  42 int itm_rtime = 1092;
  43
  44 void IT_savegame (FILE *h) {
  45   int i, n;
  46   for (n = MAXITEM - 1; n >= 0 && it[n].t == 0; n--) {
  47     // empty
  48   }
  49   n += 1;
  50   myfwrite32(n, h);
  51   for (i = 0; i < n; i++) {
  52     myfwrite32(it[i].o.x, h);
  53     myfwrite32(it[i].o.y, h);
  54     myfwrite32(it[i].o.xv, h);
  55     myfwrite32(it[i].o.yv, h);
  56     myfwrite32(it[i].o.vx, h);
  57     myfwrite32(it[i].o.vy, h);
  58     myfwrite32(it[i].o.r, h);
  59     myfwrite32(it[i].o.h, h);
  60     myfwrite32(it[i].t, h);
  61     myfwrite32(it[i].s, h);
  62   }
  63   myfwrite32(itm_rtime, h);
  64 }
  65
  66 void IT_loadgame (FILE *h) {
  67   int i, n;
  68   n = myfread32(h);
  69   for (i = 0; i < n; i++) {
  70     it[i].o.x = myfread32(h);
  71     it[i].o.y = myfread32(h);
  72     it[i].o.xv = myfread32(h);
  73     it[i].o.yv = myfread32(h);
  74     it[i].o.vx = myfread32(h);
  75     it[i].o.vy = myfread32(h);
  76     it[i].o.r = myfread32(h);
  77     it[i].o.h = myfread32(h);
  78     it[i].t = myfread32(h);
  79     it[i].s = myfread32(h);
  80   }
  81   itm_rtime = myfread32(h);
  82 }
  83
  84 void IT_alloc (void) {
  85   int i, j, n;
  86   static char nm[][6] = {
  87     "ITEMUP", "WPNUP", "GETPOW", "ITMBK"
  88   };
  89   for (i = 0; i < 4; ++i) {
  90     snd[i] = Z_getsnd(nm[i]);
  91   }
  92   for (i = 0; i < MAXITEM; ++i) {
  93     it[i].o.r = 10;
  94     it[i].o.h = 8;
  95   }
  96 }
  97
  98 void IT_init (void) {
  99   int i;
 100   for (i = 0; i < MAXITEM; ++i) {
 101     it[i].t = I_NONE;
 102     it[i].o.xv = 0;
 103     it[i].o.yv = 0;
 104     it[i].o.vx = 0;
 105     it[i].o.vy = 0;
 106   }
 107   tsndtm = 0;
 108   rsndtm = 0;
 109 }
 110
 111 int IT_load (FILE *h) {
 112   int m, i, j;
 113   old_thing_t t;
 114   switch (blk.t) {
 115         case MB_THING:
 116           for (i = 0; blk.sz > 0; ++i, blk.sz -= 8) {
 117       t.x = myfread16(h);
 118       t.y = myfread16(h);
 119       t.t = myfread16(h);
 120       t.f = myfread16(h);
 121       it[i].o.x = t.x;
 122       it[i].o.y = t.y;
 123       it[i].t = t.t;
 124       it[i].s = t.f;
 125       if (it[i].t && (it[i].s & THF_DM) && !g_dm) {
 126         it[i].t=0;
 127       }
 128           }
 129     m = i;
 130           for (i = 0, j = -1; i < m; ++i) {
 131       if (it[i].t == TH_PLR1) {
 132         j = i;
 133         it[i].t = 0;
 134       }
 135     }
 136           if (!g_dm) {
 137       if (j == -1) {
 138         ERR_fatal("Предмет игрок_1 не найден");
 139       }
 140       dm_pos[0].x = it[j].o.x;
 141       dm_pos[0].y = it[j].o.y;
 142       dm_pos[0].d = it[j].s & THF_DIR;
 143           }
 144           for (i = 0, j = -1; i < m; ++i) {
 145       if (it[i].t == TH_PLR2) {
 146         j = i;
 147         it[i].t = 0;
 148       }
 149     }
 150           if (!g_dm && _2pl) {
 151       if (j == -1) {
 152         ERR_fatal("Предмет игрок_2 не найден");
 153       }
 154       dm_pos[1].x = it[j].o.x;
 155       dm_pos[1].y = it[j].o.y;
 156       dm_pos[1].d = it[j].s & THF_DIR;
 157           }
 158           for (i = 0, j = 0; i < m; ++i) {
 159       if (it[i].t == TH_DMSTART) {
 160         if (g_dm) {
 161           dm_pos[j].x = it[i].o.x;
 162           dm_pos[j].y = it[i].o.y;
 163           dm_pos[j].d = it[i].s & THF_DIR;
 164         }
 165         it[i].t = 0;
 166         ++j;
 167       }
 168     }
 169           if (g_dm && j < 2) {
 170       ERR_fatal("Меньше 2-ух точек DM");
 171     }
 172           if (g_dm) {
 173             dm_pnum = j;
 174             dm_pl1p = myrand(dm_pnum);
 175             do {
 176         dm_pl2p = myrand(dm_pnum);
 177       } while (dm_pl2p == dm_pl1p);
 178           } else {
 179       dm_pl1p = 0;
 180       dm_pl2p = 1;
 181       dm_pnum = 2;
 182     }
 183           PL_spawn(&pl1, dm_pos[dm_pl1p].x, dm_pos[dm_pl1p].y, dm_pos[dm_pl1p].d);
 184           if (_2pl) {
 185       PL_spawn(&pl2, dm_pos[dm_pl2p].x, dm_pos[dm_pl2p].y, dm_pos[dm_pl2p].d);
 186     }
 187           for (i = 0; i < m; ++i) {
 188       if (it[i].t >= TH_CLIP && it[i].t < TH_DEMON) {
 189         it[i].s = 0;
 190         it[i].t = it[i].t - TH_CLIP + I_CLIP;
 191         if (it[i].t >= I_KEYR && it[i].t <= I_KEYB) {
 192           it[i].t |= 0x8000;
 193         }
 194       } else if (it[i].t >= TH_DEMON) {
 195         MN_spawn(it[i].o.x, it[i].o.y, it[i].s & THF_DIR, it[i].t - TH_DEMON + MN_DEMON);
 196         it[i].t = 0;
 197       }
 198     }
 199           return 1;
 200   }
 201   return 0;
 202 }
 203
 204 static void takesnd (int t) {
 205   if(tsndtm) return;
 206   t&=0x7FFF;
 207   if(t<=I_CELP || (t>=I_BPACK && t<=I_BFG) || t==I_GUN2)
 208     {tsndtm=Z_sound(snd[1],128);return;}
 209   if(t==I_MEGA || t==I_INVL || t==I_SUPER)
 210     {tsndtm=Z_sound(snd[2],192);return;}
 211   tsndtm=Z_sound(snd[0], 255);
 212 }
 213
 214 void IT_act (void) {
 215   int i,j;
 216
 217   if(tsndtm) --tsndtm;
 218   if(rsndtm) --rsndtm;
 219   for(i=0;i<MAXITEM;++i) if(it[i].t)
 220     if(it[i].s<0) {
 221       if(++it[i].s==-8) {
 222                 FX_ifog(it[i].o.x,it[i].o.y);
 223                 if(!rsndtm) rsndtm=Z_sound(snd[3],128);
 224           }
 225         }else{
 226           switch(it[i].t) {
 227                 case I_ARM1: case I_ARM2:
 228                   if(++it[i].s>=18) it[i].s=0; break;
 229                 case I_MEGA: case I_INVL:
 230                 case I_SUPER: case I_RTORCH: case I_GTORCH: case I_BTORCH:
 231                   if(++it[i].s>=8) it[i].s=0; break;
 232                 case I_GOR1: case I_FCAN:
 233                   if(++it[i].s>=6) it[i].s=0; break;
 234       }
 235           if(it[i].t&0x8000) {
 236                 if((j=Z_moveobj(&it[i].o))&Z_FALLOUT) {it[i].t=0;continue;}
 237                 else if(j&Z_HITWATER) Z_splash(&it[i].o,it[i].o.r+it[i].o.h);
 238           }
 239       if(Z_overlap(&it[i].o,&pl1.o))
 240                 if(PL_give(&pl1,it[i].t&0x7FFF)) {
 241                   takesnd(it[i].t);
 242                   if(_2pl) if((it[i].t&0x7FFF)>=I_KEYR && (it[i].t&0x7FFF)<=I_KEYB) continue;
 243                   if(!(it[i].s=-itm_rtime) || (it[i].t&0x8000)) it[i].t=0;
 244                   continue;
 245                 }
 246           if(_2pl) if(Z_overlap(&it[i].o,&pl2.o))
 247                 if(PL_give(&pl2,it[i].t&0x7FFF)) {
 248                   takesnd(it[i].t);
 249                   if((it[i].t&0x7FFF)>=I_KEYR && (it[i].t&0x7FFF)<=I_KEYB) continue;
 250                   if(!(it[i].s=-itm_rtime) || (it[i].t&0x8000)) it[i].t=0;
 251                   continue;
 252                 }
 253         }
 254 }
 255
 256 void IT_spawn (int x,int y,int t) {
 257   int i;
 258
 259   for(i=0;i<MAXITEM;++i) if(!it[i].t) {
 260         it[i].t=t|0x8000;it[i].s=0;
 261     it[i].o.x=x;it[i].o.y=y;
 262     it[i].o.xv=it[i].o.yv=it[i].o.vx=it[i].o.vy=0;
 263     it[i].o.r=10;it[i].o.h=8;
 264     return;
 265   }
 266 }
 267
 268 void IT_drop_ammo (int t, int n, int x, int y) {
 269   static int an[8]={10,4,1,40,50,25,5,100};
 270   int a;
 271
 272 again:;
 273   for(a=an[t-I_CLIP];n>=a;n-=a)
 274         IT_spawn(x+myrand(3*2+1)-3,y-myrand(7),t);
 275   if(t>=I_AMMO) {t-=4;goto again;}
 276 }