2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * distribute.c: Do distribution to sectors
30 * Known contributors to this file:
44 #include "distribute.h"
48 #include "prototypes.h"
51 dodistribute(struct sctstr *sp, int imex, s_char *path, double dist_i_cost,
53 /* import or export? */
71 if ((sp->sct_dist_x == sp->sct_x) && (sp->sct_dist_y == sp->sct_y))
74 if (path == (s_char *)0) {
75 if (sp->sct_own != 0) {
76 if (imex == EXPORT) /* only want this once */
77 wu(0, sp->sct_own, "No path to dist sector for %s\n",
83 dist = getsectp(sp->sct_dist_x, sp->sct_dist_y);
84 if (dist->sct_effic >= 60)
85 dist_packing = dchr[dist->sct_type].d_pkg;
87 dist_packing = NPKG; /* No packing */
89 if (sp->sct_effic >= 60)
90 packing = dchr[sp->sct_type].d_pkg;
92 packing = NPKG; /* No packing */
94 if ((dist->sct_effic >= 60) && dchr[dist->sct_type].d_pkg == WPKG)
95 packing = dchr[dist->sct_type].d_pkg;
97 lplague = rplague = changed = 0;
98 for (item = 1; item < I_MAX + 1; item++) {
99 if (sp->sct_dist[item] == 0)
102 thresh = sp->sct_dist[item];
104 * calculate costs for importing and exporting.
105 * the div 10.0 is because delivering straight through
106 * to the dist sect is cheaper than stopping at each
107 * sector along the way (processor-timewise)
109 excost = (dist_e_cost / ip->i_pkg[packing] * ip->i_lbs) / 10.0;
110 imcost = (dist_i_cost / ip->i_pkg[dist_packing] * ip->i_lbs) / 10.0;
111 amt_sect = sp->sct_item[item];
112 amt_dist = dist->sct_item[item];
113 diff = amt_sect - thresh;
115 if (sp->sct_own != sp->sct_oldown)
118 if (dist->sct_own != dist->sct_oldown)
124 if (!military_control(dist))
130 * don't import if no mobility.
131 * check to make sure have enough mobility in the
132 * dist sector to import what we need.
134 if (dist->sct_mobil <= 0) {
135 /*logerror(" dist mobil < 0"); */
140 amt_dist--; /* Don't send your last civ */
142 if (amt_dist < amt) {
147 if (dist->sct_mobil < imcost * amt)
148 amt = dist->sct_mobil / imcost;
151 /* XXX replace with vector assign and putvec() */
152 dist->sct_item[item] -= amt;
154 dist->sct_mobil -= (int)(imcost * amt);
155 sp->sct_item[item] += amt;
159 if (!military_control(sp))
161 if ((item == I_CIVIL) && (sp->sct_work < 100))
163 if ((item == I_CIVIL) && (sp->sct_own != sp->sct_oldown))
167 * don't export if no mobility. check to make sure we
168 * have mobility enough to do the right thing.
169 * also make sure that there's enough space in the
170 * target sector to hold the required amt.
172 if (sp->sct_mobil <= 0) {
173 /*logerror(" sp mob is zero"); */
179 if (sp->sct_mobil < excost * amt)
180 amt = sp->sct_mobil / excost;
181 if (amt > ITEM_MAX - amt_dist)
182 amt = ITEM_MAX - amt_dist;
185 /* XXX replace with vector assign and putvec() */
188 sp->sct_item[item] -= amt;
190 sp->sct_mobil -= (int)(excost * amt);
191 dist->sct_item[item] += amt;
196 lplague = dist->sct_pstage;
197 if (lplague == PLG_INFECT && sp->sct_pstage == PLG_HEALTHY)
198 sp->sct_pstage = PLG_EXPOSED;
202 rplague = sp->sct_pstage;
203 if (rplague == PLG_INFECT && dist->sct_pstage == PLG_HEALTHY)
204 dist->sct_pstage = PLG_EXPOSED;