2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2016, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure, Markus Armbruster
6 * Empire 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 3 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, see <http://www.gnu.org/licenses/>.
21 * See files README, COPYING and CREDITS in the root of the source
22 * tree for related information and legal notices. It is expected
23 * that future projects/authors will amend these files as needed.
27 * control.c: Military control functions
29 * Known contributors to this file:
31 * Markus Armbruster, 2014-2016
39 #include "prototypes.h"
44 * Return strength of security detail in @sp.
45 * Store sum of efficiency of land units with security capability in
49 security_strength(struct sctstr *sp, int *seceffp)
56 strength = sp->sct_item[I_MILIT];
58 snxtitem_xy(&ni, EF_LAND, sp->sct_x, sp->sct_y);
59 while (nxtitem(&ni, &land)) {
60 strength += land.lnd_item[I_MILIT];
61 if (lchr[land.lnd_type].l_flags & L_SECURITY) {
62 strength += land.lnd_item[I_MILIT] * land.lnd_effic / 100.0;
63 seceff += land.lnd_effic;
72 * Does the player->owner have military control of this sector?
75 military_control(struct sctstr *sp)
81 if (sp->sct_oldown != sp->sct_own) {
82 snxtitem_xy(&ni, EF_LAND, sp->sct_x, sp->sct_y);
83 while (nxtitem(&ni, &land)) {
84 if (land.lnd_own == sp->sct_own)
85 tot_mil += land.lnd_item[I_MILIT];
87 if ((sp->sct_item[I_MILIT] + tot_mil) * 10 < sp->sct_item[I_CIVIL])
95 * Ask user to confirm abandonment of sector @sp, if any.
96 * If removing @amnt commodities of type @vtype and the land units in
97 * @list would abandon the sector, ask the user to confirm.
98 * All land units in @land_list must be in this sector, owned by the
99 * player, and not loaded onto anything. @land_list may be null.
100 * Return zero when abandonment was declined, else non-zero.
103 abandon_askyn(struct sctstr *sp, i_type vtype, int amnt,
104 struct ulist *land_list)
109 * First, would we be abandoning it? If not, just return that
110 * it's ok to move out.
112 if (!would_abandon(sp, vtype, amnt, land_list))
115 sprintf(prompt, "Do you really want to abandon %s [yn]? ",
116 xyas(sp->sct_x, sp->sct_y, player->cnum));
118 return askyn(prompt);
122 * Would removing this stuff from @sp abandon it?
123 * Consider removal of @amnt commodities of type @vtype and the land
124 * units in @land_list.
125 * All land units in @land_list must be in this sector, owned by the
126 * player, and not loaded onto anything. @land_list may be null.
129 would_abandon(struct sctstr *sp, i_type vtype, int amnt,
130 struct ulist *land_list)
132 int mil, civs, nland;
137 * sct_prewrite() abandons when there are no civilians, military
138 * and own units left.
141 if (vtype != I_CIVIL && vtype != I_MILIT)
144 mil = sp->sct_item[I_MILIT];
145 civs = sp->sct_item[I_CIVIL];
147 if (vtype == I_MILIT)
149 if (vtype == I_CIVIL)
152 if (!sp->sct_own || civs > 0 || mil > 0)
156 * Okay, no civilians and no military would be left. Any own land
157 * units left? Land units on ships stay, so count them. Land
158 * units not on anything stay unless in @land_list, so count them,
159 * then subtract length of @land_list. Land units on land units
160 * stay if their carrier stays, and therefore won't change the
161 * outcome; don't count them.
165 snxtitem_xy(&ni, EF_LAND, sp->sct_x, sp->sct_y);
166 while (nxtitem(&ni, &land)) {
167 if (land.lnd_own == player->cnum && land.lnd_land < 0)
172 nland -= emp_quelen(&land_list->queue);