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
  35 extern map_block_t blk;
  36
  37 #pragma pack(1)
  38 typedef struct{
  39   obj_t o;
  40   int t;
  41   int s;
  42 }item_t;
  43 #pragma pack()
  44
  45 static void *snd[4],*spr[58];
  46 static char sprd[58];
  47 static int tsndtm,rsndtm;
  48 static item_t it[MAXITEM];
  49
  50 int itm_rtime=1092;
  51
  52 void IT_savegame (FILE *h) {
  53   int i, n;
  54   for (n = MAXITEM - 1; n >= 0 && it[n].t == 0; n--) {
  55     // empty
  56   }
  57   n += 1;
  58   myfwrite32(n, h);
  59   for (i = 0; i < n; i++) {
  60     myfwrite32(it[i].o.x, h);
  61     myfwrite32(it[i].o.y, h);
  62     myfwrite32(it[i].o.xv, h);
  63     myfwrite32(it[i].o.yv, h);
  64     myfwrite32(it[i].o.vx, h);
  65     myfwrite32(it[i].o.vy, h);
  66     myfwrite32(it[i].o.r, h);
  67     myfwrite32(it[i].o.h, h);
  68     myfwrite32(it[i].t, h);
  69     myfwrite32(it[i].s, h);
  70   }
  71   myfwrite32(itm_rtime, h);
  72 }
  73
  74 void IT_loadgame (FILE *h) {
  75   int i, n;
  76   myfread32(&n, h);
  77   for (i = 0; i < n; i++) {
  78     myfread32(&it[i].o.x, h);
  79     myfread32(&it[i].o.y, h);
  80     myfread32(&it[i].o.xv, h);
  81     myfread32(&it[i].o.yv, h);
  82     myfread32(&it[i].o.vx, h);
  83     myfread32(&it[i].o.vy, h);
  84     myfread32(&it[i].o.r, h);
  85     myfread32(&it[i].o.h, h);
  86     myfread32(&it[i].t, h);
  87     myfread32(&it[i].s, h);
  88   }
  89   myfread32(&itm_rtime, h);
  90 }
  91
  92 void IT_alloc(void) {
  93   int i,j,n;
  94   static char nm[][6]={
  95     "ITEMUP","WPNUP","GETPOW","ITMBK"
  96   },snm[][4]={
  97         "CLIP","SHEL","ROCK","CELL","AMMO","SBOX","BROK","CELP",
  98         "STIM","MEDI","BPAK",
  99         "CSAW","SHOT","SGN2","MGUN","LAUN","PLAS","BFUG"
 100   },n4[][4]={
 101     "SOUL","SMRT","SMGT","SMBT"
 102   },n3[][4]={
 103     "GOR1","FCAN"
 104   };
 105
 106 //  logo("  items");
 107   for(i=0;i<18;++i) spr[i]=Z_getspr(snm[i],0,0,sprd+i);
 108   for(;i<20;++i) {
 109         spr[i]=Z_getspr("ARM1",i-18,0,sprd+i);
 110         spr[i+2]=Z_getspr("ARM2",i-18,0,sprd+i);
 111   }i+=2;
 112   for(;i<26;++i) spr[i]=Z_getspr("MEGA",i-22,0,sprd+i);
 113   for(;i<30;++i) spr[i]=Z_getspr("PINV",i-26,0,sprd+i);
 114   spr[30]=Z_getspr("AQUA",0,0,sprd+30);
 115   spr[31]=Z_getspr("KEYR",0,0,sprd+31);
 116   spr[32]=Z_getspr("KEYG",0,0,sprd+32);
 117   spr[33]=Z_getspr("KEYB",0,0,sprd+33);
 118   spr[34]=Z_getspr("SUIT",0,0,sprd+34);
 119   for(n=35,j=0;j<4;++j)
 120     for(i=0;i<4;++i,++n) spr[n]=Z_getspr(n4[j],i,0,sprd+n);
 121   for(j=0;j<2;++j)
 122     for(i=0;i<3;++i,++n) spr[n]=Z_getspr(n3[j],i,0,sprd+n);
 123   spr[57]=Z_getspr("GUN2",0,0,sprd+57);
 124   for(i=0;i<4;++i) snd[i]=Z_getsnd(nm[i]);
 125   for(i=0;i<MAXITEM;++i) {it[i].o.r=10;it[i].o.h=8;}
 126 }
 127
 128 void IT_init(void) {
 129   int i;
 130
 131   for(i=0;i<MAXITEM;++i) {
 132         it[i].t=I_NONE;
 133         it[i].o.xv=it[i].o.yv=it[i].o.vx=it[i].o.vy=0;
 134   }
 135   tsndtm=rsndtm=0;
 136 }
 137
 138 int IT_load (FILE *h) {
 139   int m, i, j;
 140   old_thing_t t;
 141   switch (blk.t) {
 142         case MB_THING:
 143           for (i = 0; blk.sz > 0; ++i, blk.sz -= 8) {
 144       myfread16(&t.x, h);
 145       myfread16(&t.y, h);
 146       myfread16(&t.t, h);
 147       myfread16(&t.f, h);
 148       it[i].o.x = t.x;
 149       it[i].o.y = t.y;
 150       it[i].t = t.t;
 151       it[i].s = t.f;
 152       if (it[i].t && (it[i].s & THF_DM) && !g_dm) {
 153         it[i].t=0;
 154       }
 155           }
 156     m = i;
 157           for (i = 0, j = -1; i < m; ++i) {
 158       if (it[i].t == TH_PLR1) {
 159         j = i;
 160         it[i].t = 0;
 161       }
 162     }
 163           if (!g_dm) {
 164       if (j == -1) {
 165         ERR_fatal("Предмет игрок_1 не найден");
 166       }
 167       dm_pos[0].x = it[j].o.x;
 168       dm_pos[0].y = it[j].o.y;
 169       dm_pos[0].d = it[j].s & THF_DIR;
 170           }
 171           for (i = 0, j = -1; i < m; ++i) {
 172       if (it[i].t == TH_PLR2) {
 173         j = i;
 174         it[i].t = 0;
 175       }
 176     }
 177           if (!g_dm && _2pl) {
 178       if (j == -1) {
 179         ERR_fatal("Предмет игрок_2 не найден");
 180       }
 181       dm_pos[1].x = it[j].o.x;
 182       dm_pos[1].y = it[j].o.y;
 183       dm_pos[1].d = it[j].s & THF_DIR;
 184           }
 185           for (i = 0, j = 0; i < m; ++i) {
 186       if (it[i].t == TH_DMSTART) {
 187         if (g_dm) {
 188           dm_pos[j].x = it[i].o.x;
 189           dm_pos[j].y = it[i].o.y;
 190           dm_pos[j].d = it[i].s & THF_DIR;
 191         }
 192         it[i].t = 0;
 193         ++j;
 194       }
 195     }
 196           if (g_dm && j < 2) {
 197       ERR_fatal("Меньше 2-ух точек DM");
 198     }
 199           if (g_dm) {
 200             dm_pnum = j;
 201             dm_pl1p = myrand(dm_pnum);
 202             do {
 203         dm_pl2p = myrand(dm_pnum);
 204       } while (dm_pl2p == dm_pl1p);
 205           } else {
 206       dm_pl1p = 0;
 207       dm_pl2p = 1;
 208       dm_pnum = 2;
 209     }
 210           PL_spawn(&pl1, dm_pos[dm_pl1p].x, dm_pos[dm_pl1p].y, dm_pos[dm_pl1p].d);
 211           if (_2pl) {
 212       PL_spawn(&pl2, dm_pos[dm_pl2p].x, dm_pos[dm_pl2p].y, dm_pos[dm_pl2p].d);
 213     }
 214           for (i = 0; i < m; ++i) {
 215       if (it[i].t >= TH_CLIP && it[i].t < TH_DEMON) {
 216         it[i].s = 0;
 217         it[i].t = it[i].t - TH_CLIP + I_CLIP;
 218         if (it[i].t >= I_KEYR && it[i].t <= I_KEYB) {
 219           it[i].t |= 0x8000;
 220         }
 221       } else if (it[i].t >= TH_DEMON) {
 222         MN_spawn(it[i].o.x, it[i].o.y, it[i].s & THF_DIR, it[i].t - TH_DEMON + MN_DEMON);
 223         it[i].t = 0;
 224       }
 225     }
 226           return 1;
 227   }
 228   return 0;
 229 }
 230
 231 static void takesnd(int t) {
 232   if(tsndtm) return;
 233   t&=0x7FFF;
 234   if(t<=I_CELP || (t>=I_BPACK && t<=I_BFG) || t==I_GUN2)
 235     {tsndtm=Z_sound(snd[1],128);return;}
 236   if(t==I_MEGA || t==I_INVL || t==I_SUPER)
 237     {tsndtm=Z_sound(snd[2],192);return;}
 238   tsndtm=Z_sound(snd[0],256);
 239 }
 240
 241 void IT_act(void) {
 242   int i,j;
 243
 244   if(tsndtm) --tsndtm;
 245   if(rsndtm) --rsndtm;
 246   for(i=0;i<MAXITEM;++i) if(it[i].t)
 247     if(it[i].s<0) {
 248       if(++it[i].s==-8) {
 249                 FX_ifog(it[i].o.x,it[i].o.y);
 250                 if(!rsndtm) rsndtm=Z_sound(snd[3],128);
 251           }
 252         }else{
 253           switch(it[i].t) {
 254                 case I_ARM1: case I_ARM2:
 255                   if(++it[i].s>=18) it[i].s=0; break;
 256                 case I_MEGA: case I_INVL:
 257                 case I_SUPER: case I_RTORCH: case I_GTORCH: case I_BTORCH:
 258                   if(++it[i].s>=8) it[i].s=0; break;
 259                 case I_GOR1: case I_FCAN:
 260                   if(++it[i].s>=6) it[i].s=0; break;
 261       }
 262           if(it[i].t&0x8000) {
 263                 if((j=Z_moveobj(&it[i].o))&Z_FALLOUT) {it[i].t=0;continue;}
 264                 else if(j&Z_HITWATER) Z_splash(&it[i].o,it[i].o.r+it[i].o.h);
 265           }
 266       if(Z_overlap(&it[i].o,&pl1.o))
 267                 if(PL_give(&pl1,it[i].t&0x7FFF)) {
 268                   takesnd(it[i].t);
 269                   if(_2pl) if((it[i].t&0x7FFF)>=I_KEYR && (it[i].t&0x7FFF)<=I_KEYB) continue;
 270                   if(!(it[i].s=-itm_rtime) || (it[i].t&0x8000)) it[i].t=0;
 271                   continue;
 272                 }
 273           if(_2pl) if(Z_overlap(&it[i].o,&pl2.o))
 274                 if(PL_give(&pl2,it[i].t&0x7FFF)) {
 275                   takesnd(it[i].t);
 276                   if((it[i].t&0x7FFF)>=I_KEYR && (it[i].t&0x7FFF)<=I_KEYB) continue;
 277                   if(!(it[i].s=-itm_rtime) || (it[i].t&0x8000)) it[i].t=0;
 278                   continue;
 279                 }
 280         }
 281 }
 282
 283 void IT_draw(void) {
 284   int i,s;
 285
 286   for(i=0;i<MAXITEM;++i) {
 287     s=-1;
 288     if(it[i].t && it[i].s>=0) switch(it[i].t&0x7FFF) {
 289           case I_ARM1:
 290                 s=it[i].s/9+18;break;
 291           case I_ARM2:
 292                 s=it[i].s/9+20;break;
 293           case I_MEGA:
 294                 s=it[i].s/2+22;break;
 295           case I_INVL:
 296                 s=it[i].s/2+26;break;
 297           case I_SUPER: case I_RTORCH: case I_GTORCH: case I_BTORCH:
 298                 s=it[i].s/2+(it[i].t-I_SUPER)*4+35;break;
 299           case I_GOR1: case I_FCAN:
 300                 s=it[i].s/2+(it[i].t-I_GOR1)*3+51;break;
 301           case I_AQUA: s=30;break;
 302           case I_SUIT: s=34;break;
 303           case I_KEYR: case I_KEYG: case I_KEYB:
 304             s=(it[i].t&0x7FFF)-I_KEYR+31;break;
 305           case I_GUN2: s=57;break;
 306           default:
 307                 s=(it[i].t&0x7FFF)-1;
 308     }
 309         if(s>=0) Z_drawspr(it[i].o.x,it[i].o.y,spr[s],sprd[s]);
 310   }
 311 }
 312
 313 void IT_spawn(int x,int y,int t) {
 314   int i;
 315
 316   for(i=0;i<MAXITEM;++i) if(!it[i].t) {
 317         it[i].t=t|0x8000;it[i].s=0;
 318     it[i].o.x=x;it[i].o.y=y;
 319     it[i].o.xv=it[i].o.yv=it[i].o.vx=it[i].o.vy=0;
 320     it[i].o.r=10;it[i].o.h=8;
 321     return;
 322   }
 323 }
 324
 325 void IT_drop_ammo(int t,int n,int x,int y) {
 326   static int an[8]={10,4,1,40,50,25,5,100};
 327   int a;
 328
 329 again:;
 330   for(a=an[t-I_CLIP];n>=a;n-=a)
 331         IT_spawn(x+myrand(3*2+1)-3,y-myrand(7),t);
 332   if(t>=I_AMMO) {t-=4;goto again;}
 333 }