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