]> git.pond.sub.org Git - empserver/blobdiff - src/lib/subs/supply.c
Don't resupply supply unit after use as supply source
[empserver] / src / lib / subs / supply.c
index 99a57ee159688473febcbd0c890c387216678da7..ce5bf89465757ea4ae5d4e8c4f2108ef9db4448c 100644 (file)
@@ -1,6 +1,6 @@
 /*
  *  Empire - A multi-player, client/server Internet based war game.
- *  Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ *  Copyright (C) 1986-2009, Dave Pare, Jeff Bailey, Thomas Ruschak,
  *                           Ken Stevens, Steve McClure
  *
  *  This program is free software; you can redistribute it and/or modify
  *
  *  ---
  *
- *  See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- *  related information and legal notices. It is expected that any future
- *  projects/authors will amend these files as needed.
+ *  See files README, COPYING and CREDITS in the root of the source
+ *  tree for related information and legal notices.  It is expected
+ *  that future projects/authors will amend these files as needed.
  *
  *  ---
  *
  *  supply.c: Supply subroutines
- * 
+ *
  *  Known contributors to this file:
- *  
+ *
  */
 
-#include "misc.h"
-#include "nat.h"
-#include "var.h"
-#include "retreat.h"
-#include "ship.h"
-#include "land.h"
-#include "sect.h"
-#include "news.h"
-#include "xy.h"
-#include "nsc.h"
-#include "path.h"
-#include "deity.h"
-#include "item.h"
+#include <config.h>
+
+#include <math.h>
 #include "file.h"
-#include "options.h"
+#include "land.h"
+#include "nat.h"
 #include "optlist.h"
 #include "player.h"
 #include "prototypes.h"
+#include "sect.h"
+#include "ship.h"
+
+static int get_minimum(struct lndstr *, i_type);
+static int s_commod(int, int, int, i_type, int, int);
 
 /*
  * We want to get enough guns to be maxed out, enough shells to
- *     fire once, one update's worth of food, enough fuel for
- *     one update.
+ *     fire once, one update's worth of food.
  *
  * Firts, try to forage in the sector
  * Second look for a warehouse or headquarters to leech
  * Third, look for a ship we own in a harbor
  * Fourth, look for supplies in a supply unit we own
- *             (one good reason to do this last is that the supply
- *              unit will then call resupply, taking more time)
+ *             (one good reason to do this last is that the supply
+ *              unit will then call resupply, taking more time)
  *
  * May want to put code to resupply with SAMs here, later --ts
- *
  */
 
 void
 resupply_all(struct lndstr *lp)
 {
     if (!opt_NOFOOD)
-       resupply_commod(lp,I_FOOD);
-    resupply_commod(lp,I_SHELL);
-    if (opt_FUEL)
-       resupply_commod(lp,I_PETROL);
+       resupply_commod(lp, I_FOOD);
+    resupply_commod(lp, I_SHELL);
 }
 
 /*
@@ -82,136 +74,88 @@ resupply_all(struct lndstr *lp)
  */
 
 void
-resupply_commod(struct lndstr *lp, int type)
+resupply_commod(struct lndstr *lp, i_type type)
 {
-    int        vec[I_MAX+1];
-    int svec[I_MAX+1];
     int amt;
-    struct     lchrstr *lcp;
-    struct shpstr ship;
-    
-    lcp = &lchr[(int)lp->lnd_type];
-    
-    getvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-    /* Ok, do we now have enough? */
-    if (vec[type] < get_minimum(lp,type)) {
-       vec[type] += supply_commod(lp->lnd_own,lp->lnd_x,lp->lnd_y,type,
-                                  get_minimum(lp,type)-vec[type]);
-       putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-    }
-    /* Now, check again to see if we have enough. */
-    if (vec[type] < get_minimum(lp,type)) {
-       /* Nope.  How much do we need? */
-       amt = (get_minimum(lp, type) - vec[type]);
-       /* Are we on a ship?  if so, try to get it from the ship first. */
-       if (lp->lnd_ship >= 0) {
-           getship(lp->lnd_ship, &ship);
-           getvec(VT_ITEM, svec, (s_char *)&ship, EF_SHIP);
-           /* Now, determine how much we can get */
-           amt = (amt < svec[type]) ? amt : svec[type];
-           /* Now, add and subtract */
-           vec[type] += amt;
-           svec[type] -= amt;
-           putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-           putvec(VT_ITEM, svec, (s_char *)&ship, EF_SHIP);
-           putship(lp->lnd_ship, &ship);
-       }
-    }
 
-    if (opt_FUEL && type == I_PETROL) {
-       extern  float land_mob_scale;
-       extern  int etu_per_update;
-       int     fuel_needed = (lp->lnd_fuelu * (((float)etu_per_update
-                                                * land_mob_scale))/10.0);
-       
-       while((lp->lnd_fuel < fuel_needed) && vec[I_PETROL]){
-           lp->lnd_fuel += 10;
-           if (lp->lnd_fuel > lp->lnd_fuelc)
-               lp->lnd_fuel = lp->lnd_fuelc;
-           vec[I_PETROL]--;
-           putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-       }
+    amt = get_minimum(lp, type) - lp->lnd_item[type];
+    if (amt > 0) {
+       lp->lnd_item[type] += supply_commod(lp->lnd_own,
+                                           lp->lnd_x, lp->lnd_y,
+                                           type, amt);
     }
 }
 
 /*
  * Actually get the commod
  */
-int 
-supply_commod(int own, int x, int y, int type, int total_wanted)
+int
+supply_commod(int own, int x, int y, i_type type, int total_wanted)
 {
-    if (total_wanted < 0)
+    if (total_wanted <= 0)
        return 0;
-    return s_commod(own, x, y, type,total_wanted,!player->simulation);
+    return s_commod(own, x, y, type, total_wanted, !player->simulation);
 }
 
 /*
  * Just return the number you COULD get, without doing it
  */
-int
-try_supply_commod(int own, int x, int y, int type, int total_wanted)
+static int
+try_supply_commod(int own, int x, int y, i_type type, int total_wanted)
 {
-    if (total_wanted < 0)
+    if (total_wanted <= 0)
        return 0;
-    
-    return s_commod(own, x, y, type,total_wanted,0);
+
+    return s_commod(own, x, y, type, total_wanted, 0);
 }
 
 /* Get supplies of a certain type */
-int 
-s_commod(int own, int x, int y, int type, int total_wanted, int actually_doit)
+static int
+s_commod(int own, int x, int y, i_type type, int total_wanted,
+        int actually_doit)
 {
-    int        wanted=total_wanted;
-    int        gotten=0, lookrange;
-    struct     sctstr sect, dest;
-    int        vec[I_MAX+1];
-    struct     nstr_sect ns;
-    struct     nstr_item ni;
-    struct     lchrstr *lcp;
-    struct     shpstr ship;
-    struct     lndstr land;
+    int wanted = total_wanted;
+    int gotten = 0, lookrange;
+    struct sctstr sect, dest;
+    struct nstr_sect ns;
+    struct nstr_item ni;
+    struct lchrstr *lcp;
+    struct shpstr ship;
+    struct lndstr land;
     /* leave at least 1 military in sectors/ships */
-    int        minimum=(type == I_MILIT ? 1 : 0);
-    int        can_move;
-    double     move_cost, weight, mobcost;
-    int        packing;
-    extern  double eatrate;
-    extern  int etu_per_update;
-    struct     dchrstr *dp;
-    struct     ichrstr *ip;
-    s_char     buf[1024];
-    
+    int minimum = (type == I_MILIT ? 1 : 0);
+    int can_move;
+    double move_cost, weight, mobcost;
+    int packing;
+    struct dchrstr *dp;
+    struct ichrstr *ip;
+    char buf[1024];
+
     /* try to get it from sector we're in */
-    getsect(x,y,&dest);
-    getsect(x,y,&sect);
-    if (sect.sct_own == own){
-       getvec(VT_ITEM, vec, (s_char *)&sect, EF_SECTOR);
-       if ((vec[type]-minimum) >= wanted){
-           vec[type] -= wanted;
-           if (actually_doit){
-               putvec(VT_ITEM,vec,(s_char *)&sect,EF_SECTOR);
+    getsect(x, y, &dest);
+    getsect(x, y, &sect);
+    if (sect.sct_own == own) {
+       if (sect.sct_item[type] - wanted >= minimum) {
+           sect.sct_item[type] -= wanted;
+           if (actually_doit)
                putsect(&sect);
-           }
            return total_wanted;
-       }else if ((vec[type]-minimum) > 0){
-           gotten += (vec[type]-minimum);
-           wanted -= (vec[type]-minimum);
-           vec[type] = minimum;
-           if (actually_doit){
-               putvec(VT_ITEM,vec,(s_char *)&sect,EF_SECTOR);
+       } else if (sect.sct_item[type] - minimum > 0) {
+           gotten += sect.sct_item[type] - minimum;
+           wanted -= sect.sct_item[type] - minimum;
+           sect.sct_item[type] = minimum;
+           if (actually_doit)
                putsect(&sect);
-           }
        }
     }
     /* look for a headquarters or warehouse */
-    lookrange = tfact(own,(double)10.0);
+    lookrange = tfact(own, 10.0);
     snxtsct_dist(&ns, x, y, lookrange);
-    while (nxtsct(&ns, &sect) && wanted){
+    while (nxtsct(&ns, &sect) && wanted) {
        if (sect.sct_own != own)
            continue;
        if ((sect.sct_type != SCT_WAREH) &&
-           (sect.sct_type != SCT_HEADQ) &&
-           (sect.sct_type != SCT_HARBR))
+           (sect.sct_type != SCT_HEADQ) && (sect.sct_type != SCT_HARBR))
            continue;
        if ((sect.sct_type == SCT_HEADQ) &&
            (sect.sct_dist_x == sect.sct_x) &&
@@ -219,15 +163,12 @@ s_commod(int own, int x, int y, int type, int total_wanted, int actually_doit)
            continue;
        if (sect.sct_effic < 60)
            continue;
-       if (BestLandPath(buf, &dest,&sect,&move_cost,MOB_ROAD) == (s_char *)0)
+       if (!BestLandPath(buf, &dest, &sect, &move_cost, MOB_MOVE))
            continue;
-       getvec(VT_ITEM, vec, (s_char *)&sect, EF_SECTOR);
-       if (!opt_NOFOOD && type == I_FOOD) {
-           minimum=(((double)etu_per_update * eatrate) *
-                    (double)(vec[I_CIVIL]+vec[I_MILIT]+vec[I_UW]))
-           +2;
-       }
-       if (vec[type] <= minimum) {
+       if (!opt_NOFOOD && type == I_FOOD)
+           minimum = 1 + (int)ceil(food_needed(sect.sct_item,
+                                               etu_per_update));
+       if (sect.sct_item[type] <= minimum) {
            /* Don't bother... */
            continue;
        }
@@ -236,77 +177,71 @@ s_commod(int own, int x, int y, int type, int total_wanted, int actually_doit)
        packing = ip->i_pkg[dp->d_pkg];
        if (packing > 1 && sect.sct_effic < 60)
            packing = 1;
-       weight = ((double)ip->i_lbs / (double)packing);
+       weight = (double)ip->i_lbs / packing;
        mobcost = move_cost * weight;
        if (mobcost > 0)
-           can_move = ((double)sect.sct_mobil / mobcost);
+           can_move = (double)sect.sct_mobil / mobcost;
        else
-           can_move = vec[type]-minimum;
-       if (can_move > (vec[type]-minimum))
-           can_move = (vec[type]-minimum);
-       
-       if (can_move >= wanted){
-           int n;
-           
-           vec[type] -= wanted;
-           
+           can_move = sect.sct_item[type] - minimum;
+       if (can_move > sect.sct_item[type] - minimum)
+           can_move = sect.sct_item[type] - minimum;
+
+       if (can_move >= wanted) {
+           int n;
+
+           sect.sct_item[type] -= wanted;
+
            /* take off mobility for delivering sect */
-           n = roundavg(total_wanted*weight*move_cost);
+           n = roundavg(total_wanted * weight * move_cost);
            if (n < 0)
                n = 0;
            if (n > sect.sct_mobil)
                n = sect.sct_mobil;
-           sect.sct_mobil -= (u_char)n;
-           
-           if (actually_doit){
-               putvec(VT_ITEM, vec, (s_char *)&sect, EF_SECTOR);
+           sect.sct_mobil -= n;
+
+           if (actually_doit)
                putsect(&sect);
-           }
-           
+
            return total_wanted;
-       }else if (can_move > 0){
-           int n;
+       } else if (can_move > 0) {
+           int n;
            gotten += can_move;
            wanted -= can_move;
-           vec[type] -= can_move;
-           
+           sect.sct_item[type] -= can_move;
+
            /* take off mobility for delivering sect */
-           n = roundavg(can_move*weight*move_cost);
+           n = roundavg(can_move * weight * move_cost);
            if (n < 0)
                n = 0;
            if (n > sect.sct_mobil)
                n = sect.sct_mobil;
-           sect.sct_mobil -= (u_char)n;
-           
-           if (actually_doit){
-               putvec(VT_ITEM, vec, (s_char *)&sect, EF_SECTOR);
+           sect.sct_mobil -= n;
+
+           if (actually_doit)
                putsect(&sect);
-           }
        }
     }
-    
+
     /* look for an owned ship in a harbor */
     snxtitem_dist(&ni, EF_SHIP, x, y, lookrange);
-    
-    while (nxtitem(&ni, (s_char *)&ship) && wanted){
+
+    while (nxtitem(&ni, &ship) && wanted) {
        if (ship.shp_own != own)
            continue;
-       
+
        if (!(mchr[(int)ship.shp_type].m_flags & M_SUPPLY))
            continue;
-       getsect(ship.shp_x,ship.shp_y,&sect);
+       getsect(ship.shp_x, ship.shp_y, &sect);
        if (sect.sct_type != SCT_HARBR)
            continue;
        if (sect.sct_effic < 2)
            continue;
-       if (BestLandPath(buf, &dest,&sect,&move_cost,MOB_ROAD) == (s_char *)0)
+       if (!BestLandPath(buf, &dest, &sect, &move_cost, MOB_MOVE))
            continue;
-       getvec(VT_ITEM, vec, (s_char *)&ship, EF_SHIP);
        if (!opt_NOFOOD && type == I_FOOD)
-           minimum=(((double)etu_per_update * eatrate) *
-                    (double)(vec[I_CIVIL]+vec[I_MILIT]+vec[I_UW]))
-           +2;
-       if (vec[type] <= minimum) {
+           minimum = 1 + (int)ceil(food_needed(ship.shp_item,
+                                               etu_per_update));
+       if (ship.shp_item[type] <= minimum) {
            /* Don't bother... */
            continue;
        }
@@ -315,374 +250,200 @@ s_commod(int own, int x, int y, int type, int total_wanted, int actually_doit)
        packing = ip->i_pkg[dp->d_pkg];
        if (packing > 1 && sect.sct_effic < 60)
            packing = 1;
-       weight = ((double)ip->i_lbs / (double)packing);
+       weight = (double)ip->i_lbs / packing;
        mobcost = move_cost * weight;
        if (mobcost > 0)
-           can_move = ((double)sect.sct_mobil / mobcost);
+           can_move = (double)sect.sct_mobil / mobcost;
        else
-           can_move = vec[type]-minimum;
-       if (can_move > (vec[type]-minimum))
-           can_move = (vec[type]-minimum);
-       if (can_move >= wanted){
-           int n;
-           vec[type] -= wanted;
-           
-           n = roundavg(wanted*weight*move_cost);
+           can_move = ship.shp_item[type] - minimum;
+       if (can_move > ship.shp_item[type] - minimum)
+           can_move = ship.shp_item[type] - minimum;
+       if (can_move >= wanted) {
+           int n;
+           ship.shp_item[type] -= wanted;
+
+           n = roundavg(wanted * weight * move_cost);
            if (n < 0)
                n = 0;
            if (n > sect.sct_mobil)
                n = sect.sct_mobil;
-           sect.sct_mobil -= (u_char)n;
-           if (actually_doit){
-               putvec(VT_ITEM, vec, (s_char *)&ship, EF_SHIP);
-               putship(ship.shp_uid,&ship);
+           sect.sct_mobil -= n;
+           if (actually_doit) {
+               putship(ship.shp_uid, &ship);
                putsect(&sect);
            }
            return total_wanted;
-       }else if (can_move > 0){
-           int n;
+       } else if (can_move > 0) {
+           int n;
            gotten += can_move;
            wanted -= can_move;
-           vec[type] -= can_move;
-           
-           n = roundavg(can_move*weight*move_cost);
+           ship.shp_item[type] -= can_move;
+
+           n = roundavg(can_move * weight * move_cost);
            if (n < 0)
                n = 0;
            if (n > sect.sct_mobil)
                n = sect.sct_mobil;
-           sect.sct_mobil -= (u_char)n;
-           
-           if (actually_doit){
-               putvec(VT_ITEM, vec, (s_char *)&ship, EF_SHIP);
-               putship(ship.shp_uid,&ship);
+           sect.sct_mobil -= n;
+
+           if (actually_doit) {
+               putship(ship.shp_uid, &ship);
                putsect(&sect);
            }
        }
     }
-    
+
     /* look for an owned supply unit */
     snxtitem_dist(&ni, EF_LAND, x, y, lookrange);
-    
-    while (nxtitem(&ni, (s_char *)&land) && wanted){
-       int     min;
-       
+
+    while (nxtitem(&ni, &land) && wanted) {
+       int min;
+
        if (land.lnd_own != own)
            continue;
-       
+
        lcp = &lchr[(int)land.lnd_type];
        if (!(lcp->l_flags & L_SUPPLY))
            continue;
-       
-       getvec(VT_ITEM, vec, (s_char *)&land, EF_LAND);
-       if (vec[type] <= get_minimum(&land,type))
+
+       if (land.lnd_item[type] <= get_minimum(&land, type))
            continue;
-       
-       getsect(land.lnd_x,land.lnd_y,&sect);
-       if (BestLandPath(buf, &dest,&sect,&move_cost,MOB_ROAD) == (s_char *)0)
+
+       getsect(land.lnd_x, land.lnd_y, &sect);
+       if (!BestLandPath(buf, &dest, &sect, &move_cost, MOB_MOVE))
            continue;
-       
+
        if ((land.lnd_ship >= 0) && (sect.sct_type != SCT_HARBR))
            continue;
-       
+
        if ((land.lnd_ship >= 0) && (sect.sct_effic < 2))
            continue;
-       
-       if ((vec[type]-wanted) < get_minimum(&land,type)){
-           int hold;
-           struct      lndstr l2;
-           
-           bcopy((s_char *)&land,(s_char *)&l2,sizeof(struct lndstr));
-           hold = vec[type];
-           vec[type] = 0;
-           putvec(VT_ITEM, vec, (s_char *)&land, EF_LAND);
-           land.lnd_fuel = 0;
-           putland(land.lnd_uid,&land);
-           hold += s_commod(own,land.lnd_x,land.lnd_y,type,wanted, actually_doit);
-           vec[type] = hold;
-           putvec(VT_ITEM, vec, (s_char *)&land, EF_LAND);
-           putland(land.lnd_uid,&land);
-           if (!actually_doit)
-               putland(l2.lnd_uid,&l2);
+
+       if (land.lnd_item[type] - wanted < get_minimum(&land, type)) {
+           struct lndstr save;
+
+           /*
+            * Temporarily zap this unit's store, so the recursion
+            * avoids it.
+            */
+           save = land;
+           land.lnd_item[type] = 0;
+           putland(land.lnd_uid, &land);
+           save.lnd_seqno = land.lnd_seqno;
+
+           land.lnd_item[type] =
+               save.lnd_item[type] + s_commod(own, land.lnd_x, land.lnd_y,
+                                              type, wanted, actually_doit);
+           if (actually_doit)
+               putland(land.lnd_uid, &land);
+           else
+               putland(save.lnd_uid, &save);
        }
-       
-       getvec(VT_ITEM, vec, (s_char *)&land, EF_LAND);
+
+       min = get_minimum(&land, type);
        ip = &ichr[type];
-       weight = ((double)ip->i_lbs);
+       weight = ip->i_lbs;
        mobcost = move_cost * weight;
        if (mobcost > 0)
-           can_move = ((double)land.lnd_mobil / mobcost);
+           can_move = (double)land.lnd_mobil / mobcost;
        else
-           can_move = vec[type]-min;
-       min = get_minimum(&land,type);
-       if (can_move > (vec[type]-min))
-           can_move = (vec[type]-min);
-       
-       if (can_move >= wanted){
-           vec[type] -= wanted;
-           
-           /* resupply the supply unit */
-           resupply_commod(&land, type);
-           
-           land.lnd_mobil -= roundavg(wanted*weight*move_cost);
-           
-           if (actually_doit){
-               putvec(VT_ITEM, vec, (s_char *)&land, EF_LAND);
-               putland(land.lnd_uid,&land);
-           }
+           can_move = land.lnd_item[type] - min;
+       if (can_move > land.lnd_item[type] - min)
+           can_move = land.lnd_item[type] - min;
+
+       if (can_move >= wanted) {
+           land.lnd_item[type] -= wanted;
+           land.lnd_mobil -= roundavg(wanted * weight * move_cost);
+
+           if (actually_doit)
+               putland(land.lnd_uid, &land);
            return total_wanted;
-       }else if (can_move > 0){
+       } else if (can_move > 0) {
            gotten += can_move;
            wanted -= can_move;
-           vec[type] -= can_move;
-           
-           land.lnd_mobil -= roundavg(can_move*weight*move_cost);
-           
-           if (actually_doit){
-               putvec(VT_ITEM, vec, (s_char *)&land, EF_LAND);
-               putland(land.lnd_uid,&land);
-           }
+           land.lnd_item[type] -= can_move;
+
+           land.lnd_mobil -= roundavg(can_move * weight * move_cost);
+
+           if (actually_doit)
+               putland(land.lnd_uid, &land);
        }
     }
-    
+
     /* We've done the best we could */
     /* return the number gotten */
     return gotten;
 }
 
 
-s_char *
-itemname(int type)
-{
-    register int t;
-    register struct ichrstr *ip;
-    
-    t=V_ITEM(type);
-    for (ip = &ichr[1]; ip->i_mnem != 0; ip++) {
-       if (t == ip->i_vtype)
-           return ip->i_name;
-    }
-    return 0;
-}
-
-int
-at_minimum(struct lndstr *lp, int type)
-{
-    int        vec[I_MAX+1];
-    
-    getvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-    if (vec[type] <= get_minimum(lp,type))
-       return 1;
-    
-    return 0;
-}
-
 /*
  * We want to get enough shells to fire once,
- * one update's worth of food, enough fuel for
- * one update.
+ * one update's worth of food.
  */
 
-int
-get_minimum(struct lndstr *lp, int type)
+static int
+get_minimum(struct lndstr *lp, i_type type)
 {
-    struct     lchrstr *lcp;
-    int        max, want=0;
-    extern     double eatrate;
-    extern     int etu_per_update;
-    extern     float land_mob_scale;
-    
+    struct lchrstr *lcp;
+    int max, want = 0;
+
     lcp = &lchr[(int)lp->lnd_type];
-    max = vl_find(V_ITEM(type), lcp->l_vtype, lcp->l_vamt, (int) lcp->l_nv);
-    
+    max = lcp->l_item[type];
+
     switch (type) {
     case I_FOOD:
        if (opt_NOFOOD)
-           return 0; /* no food reqd, get out */
-       want = (((double)etu_per_update * eatrate) *
-               (double)total_mil(lp))+1;
+           return 0;           /* no food reqd, get out */
+       want = (int)ceil(food_needed(lp->lnd_item, etu_per_update));
        break;
     case I_SHELL:
-       want = lp->lnd_ammo;
-       break;
-       
-       /*
-        * return the amount of pet we'd need to get to 
-        * enough fuel for 1 update
-        *
-        */
-    case I_PETROL:
-       if (opt_FUEL == 0) return 0;
-       want = (lp->lnd_fuelu * (((float)etu_per_update *
-                                 land_mob_scale))/10.0);
-       want -= lp->lnd_fuel;
-       if (want > 0){
-           double      d;
-           d = (double)want/10.0;
-           want = (int)d;
-           if (want == 0)
-               want++;
-       }
-       
-       max = want;
+       want = lcp->l_ammo;
        break;
-    default:   return 0;
+    default:
+       return 0;
     }
-    
+
     if (want > max)
        want = max;
-    
+
     return want;
 }
 
 int
 has_supply(struct lndstr *lp)
 {
-    struct     lchrstr *lcp;
-    int        vec[I_MAX+1], shells_needed, shells, keepshells;
-    int        food, food_needed, keepfood;
-    int        fuel_needed, fuel, petrol_needed, petrol, keeppetrol;
-    
-    lcp = &lchr[(int)lp->lnd_type];
-    getvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-    
+    int shells_needed, shells, keepshells;
+    int food, food_needed, keepfood;
+
     if (!opt_NOFOOD) {
-       food_needed = get_minimum(lp,I_FOOD);
-       food = keepfood = vec[I_FOOD];
-       if (food < food_needed){
-           vec[I_FOOD]=0;
-           putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-           food += try_supply_commod(lp->lnd_own,lp->lnd_x,lp->lnd_y,
-                                     I_FOOD,(food_needed-food));
-           vec[I_FOOD]=keepfood;
-           putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
+       food_needed = get_minimum(lp, I_FOOD);
+       food = keepfood = lp->lnd_item[I_FOOD];
+       if (food < food_needed) {
+           lp->lnd_item[I_FOOD] = 0;
+           putland(lp->lnd_uid, lp);
+           food += try_supply_commod(lp->lnd_own, lp->lnd_x, lp->lnd_y,
+                                     I_FOOD, (food_needed - food));
+           lp->lnd_item[I_FOOD] = keepfood;
+           putland(lp->lnd_uid, lp);
        }
        if (food < food_needed)
            return 0;
-       
+
     }
-    
-    shells_needed = lp->lnd_ammo;
-    shells = keepshells = vec[I_SHELL];
-    if (shells < shells_needed){
-       vec[I_SHELL]=0;
-       putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-       shells += try_supply_commod(lp->lnd_own,lp->lnd_x,lp->lnd_y,
-                                   I_SHELL,(shells_needed-shells));
-       vec[I_SHELL]=keepshells;
-       putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
+
+    shells_needed = lchr[lp->lnd_type].l_ammo;
+    shells = keepshells = lp->lnd_item[I_SHELL];
+    if (shells < shells_needed) {
+       lp->lnd_item[I_SHELL] = 0;
+       putland(lp->lnd_uid, lp);
+       shells += try_supply_commod(lp->lnd_own, lp->lnd_x, lp->lnd_y,
+                                   I_SHELL, (shells_needed - shells));
+       lp->lnd_item[I_SHELL] = keepshells;
+       putland(lp->lnd_uid, lp);
     }
-    
+
     if (shells < shells_needed)
        return 0;
-    
-    if (opt_FUEL) {
-       fuel_needed = lp->lnd_fuelu;
-       
-       fuel = lp->lnd_fuel;
-       
-       petrol=petrol_needed = 0;
-       
-       if (fuel < fuel_needed){
-           petrol_needed =
-               ldround(((double)(fuel_needed-fuel)/10.0),1);
-           petrol = keeppetrol = vec[I_PETROL];
-       }
-       
-       if (petrol < petrol_needed){
-           vec[I_PETROL]=0;
-           putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-           petrol += try_supply_commod(lp->lnd_own,
-                                       lp->lnd_x,lp->lnd_y,
-                                       I_PETROL,(petrol_needed-petrol));
-           vec[I_PETROL]=keeppetrol;
-           putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-           fuel += petrol*10;
-       }
-       
-       if (fuel < fuel_needed)
-           return 0;
-    } /* end opt_FUEL */
-    
-    return 1;
-}
 
-int
-use_supply(struct lndstr *lp)
-{
-    struct     lchrstr *lcp;
-    int        vec[I_MAX+1], shells_needed, shells, food, food_needed;
-    int        fuel_needed, fuel, petrol_needed, petrol;
-    
-    lcp = &lchr[(int)lp->lnd_type];
-    getvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-    
-    shells_needed = lp->lnd_ammo;
-    shells = vec[I_SHELL];
-    if (shells < shells_needed){
-               vec[I_SHELL] = 0;
-               putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-               shells += supply_commod(lp->lnd_own,lp->lnd_x,lp->lnd_y,I_SHELL,
-                                                               (shells_needed-shells));
-               vec[I_SHELL] = shells;
-    }
-    
-    vec[I_SHELL] = max(vec[I_SHELL] - shells_needed, 0);
-    
-    if (lp->lnd_frg) /* artillery */
-               goto artillery;
-    
-    food_needed = get_minimum(lp,I_FOOD);
-    food = vec[I_SHELL];
-    
-    if (food < food_needed){
-               vec[I_FOOD]=0;
-               putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-               food += supply_commod(lp->lnd_own,lp->lnd_x,lp->lnd_y,I_FOOD,
-                                                         (food_needed-food));
-               vec[I_FOOD]=food;
-    }
-    
-    vec[I_FOOD] = max(vec[I_FOOD]-food_needed,0);
-    
-    if (opt_FUEL) {
-               fuel_needed = lp->lnd_fuelu;
-               fuel = lp->lnd_fuel;
-               
-               petrol=petrol_needed = 0;
-               
-               if (fuel < fuel_needed){
-                       petrol_needed =
-                               ldround(((double)(fuel_needed-fuel)/10.0),1);
-                       petrol = vec[I_PETROL];
-               }
-               
-               if (petrol < petrol_needed){
-                       vec[I_PETROL]=0;
-                       putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-                       petrol += supply_commod(lp->lnd_own,
-                                                                       lp->lnd_x,lp->lnd_y,
-                                                                       I_PETROL,(petrol_needed-petrol));
-                       vec[I_PETROL]=petrol;
-               }
-               
-               if (petrol_needed){
-                       if (petrol>=petrol_needed){
-                               vec[I_PETROL]=
-                                       max(vec[I_PETROL]-petrol_needed,0);
-                               lp->lnd_fuel += petrol_needed * 10;
-                       }
-                       else{
-                               lp->lnd_fuel += vec[I_PETROL]*10;
-                               vec[I_PETROL]=0;
-                       }
-               }
-               
-               lp->lnd_fuel = max(lp->lnd_fuel - fuel_needed, 0);
-    } /* end opt_FUEL */
-    
- artillery:
-    putvec(VT_ITEM, vec, (s_char *)lp, EF_LAND);
-    putland(lp->lnd_uid,lp);
     return 1;
 }
-