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 * plane.c: Do production for planes
29 * Known contributors to this file:
32 * Markus Armbruster, 2006-2016
44 #include "prototypes.h"
48 static void planerepair(struct plnstr *, struct natstr *, struct bp *, int);
49 static void upd_plane(struct plnstr *, int, struct natstr *, struct bp *, int);
52 prod_plane(int etus, int natnum, struct bp *bp, int buildem)
53 /* Build = 1, maintain =0 */
60 for (n = 0; NULL != (pp = getplanep(n)); n++) {
63 if (pp->pln_own != natnum)
65 if (pp->pln_effic < PLANE_MINEFF) {
66 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
67 pp->pln_x, pp->pln_y);
72 if (pln_is_in_orbit(pp)) {
73 if (!player->simulation && buildem == 0
74 && !(pp->pln_flags & PLN_SYNCHRONOUS))
79 np = getnatp(pp->pln_own);
80 start_money = np->nat_money;
81 upd_plane(pp, etus, np, bp, buildem);
82 air_money[pp->pln_own] += np->nat_money - start_money;
83 if (buildem == 0 || np->nat_money != start_money)
85 if (player->simulation)
86 np->nat_money = start_money;
93 upd_plane(struct plnstr *pp, int etus,
94 struct natstr *np, struct bp *bp, int build)
96 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
97 int mult, cost, eff_lost;
100 if (!pp->pln_off && np->nat_money >= 0)
101 planerepair(pp, np, bp, etus);
102 if (!player->simulation)
106 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
108 cost = -(mult * etus * MIN(0.0, pcp->pl_cost * money_plane));
109 if (np->nat_money < cost && !player->simulation) {
111 if (pp->pln_effic - eff_lost < PLANE_MINEFF)
112 eff_lost = pp->pln_effic - PLANE_MINEFF;
114 wu(0, pp->pln_own, "%s lost %d%% to lack of maintenance\n",
115 prplane(pp), eff_lost);
116 pp->pln_effic -= eff_lost;
119 np->nat_money -= cost;
121 /* flight pay is 5x the pay received by other military */
122 np->nat_money += etus * pcp->pl_mat[I_MILIT] * money_mil * 5;
127 planerepair(struct plnstr *pp, struct natstr *np, struct bp *bp, int etus)
129 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
131 struct shpstr *carrier;
132 struct sctstr *sp, scratch_sect;
138 if (pp->pln_effic == 100)
141 sp = getsectp(pp->pln_x, pp->pln_y);
146 if (pp->pln_ship >= 0) {
147 if (pp->pln_effic >= 80)
149 carrier = getshipp(pp->pln_ship);
150 if (CANT_HAPPEN(!carrier))
152 if (carrier->shp_off)
154 if (relations_with(carrier->shp_own, pp->pln_own) != ALLIED)
157 if (relations_with(sp->sct_own, pp->pln_own) != ALLIED)
161 if (player->simulation) {
163 bp_to_sect(bp, &scratch_sect);
168 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
171 avail = sp->sct_avail * 100;
173 avail += etus * carrier->shp_item[I_MILIT] / 2;
175 delta = avail / pcp->pl_bwork;
178 if (delta > (int)((float)etus * plane_grow_scale))
179 delta = (int)((float)etus * plane_grow_scale);
180 if (delta > 100 - pp->pln_effic)
181 delta = 100 - pp->pln_effic;
183 build = get_materials(sp, pcp->pl_mat, delta);
188 used = build * pcp->pl_bwork;
189 avail = roundavg((sp->sct_avail * 100 - used) / 100.0);
192 sp->sct_avail = avail;
194 if (sp->sct_type != SCT_AIRPT)
197 if ((pp->pln_effic + build) > 80)
198 build = 80 - pp->pln_effic;
201 bp_set_from_sect(bp, sp);
202 np->nat_money -= roundavg(mult * build * pcp->pl_cost / 100.0);
204 if (!player->simulation)
205 pp->pln_effic += (signed char)build;