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
45 #include "prototypes.h"
49 static void planerepair(struct plnstr *, struct natstr *, struct bp *, int);
50 static void upd_plane(struct plnstr *, int, struct natstr *, struct bp *, int);
53 prod_plane(int etus, int natnum, struct bp *bp, int buildem)
54 /* Build = 1, maintain =0 */
61 for (n = 0; NULL != (pp = getplanep(n)); n++) {
64 if (pp->pln_own != natnum)
66 if (pp->pln_effic < PLANE_MINEFF) {
67 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
68 pp->pln_x, pp->pln_y);
73 if (pln_is_in_orbit(pp)) {
74 if (!player->simulation && buildem == 0
75 && !(pp->pln_flags & PLN_SYNCHRONOUS))
80 np = getnatp(pp->pln_own);
81 start_money = np->nat_money;
82 upd_plane(pp, etus, np, bp, buildem);
83 air_money[pp->pln_own] += np->nat_money - start_money;
84 if (buildem == 0 || np->nat_money != start_money)
86 if (player->simulation)
87 np->nat_money = start_money;
94 upd_plane(struct plnstr *pp, int etus,
95 struct natstr *np, struct bp *bp, int build)
97 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
98 int mult, cost, eff_lost;
101 if (!pp->pln_off && np->nat_money >= 0)
102 planerepair(pp, np, bp, etus);
103 if (!player->simulation)
107 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
109 cost = -(mult * etus * MIN(0.0, pcp->pl_cost * money_plane));
110 if (np->nat_money < cost && !player->simulation) {
112 if (pp->pln_effic - eff_lost < PLANE_MINEFF)
113 eff_lost = pp->pln_effic - PLANE_MINEFF;
115 wu(0, pp->pln_own, "%s lost %d%% to lack of maintenance\n",
116 prplane(pp), eff_lost);
117 pp->pln_effic -= eff_lost;
120 np->nat_money -= cost;
122 /* flight pay is 5x the pay received by other military */
123 np->nat_money += etus * pcp->pl_mat[I_MILIT] * money_mil * 5;
128 planerepair(struct plnstr *pp, struct natstr *np, struct bp *bp, int etus)
130 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
132 struct shpstr *carrier;
133 struct sctstr *sp, scratch_sect;
139 if (pp->pln_effic == 100)
142 sp = getsectp(pp->pln_x, pp->pln_y);
147 if (pp->pln_ship >= 0) {
148 if (pp->pln_effic >= 80)
150 carrier = getshipp(pp->pln_ship);
151 if (CANT_HAPPEN(!carrier))
153 if (carrier->shp_off)
155 if (relations_with(carrier->shp_own, pp->pln_own) != ALLIED)
158 if (relations_with(sp->sct_own, pp->pln_own) != ALLIED)
162 if (player->simulation) {
164 bp_to_sect(bp, &scratch_sect);
169 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
172 avail = sp->sct_avail * 100;
174 avail += etus * carrier->shp_item[I_MILIT] / 2;
176 delta = avail / pcp->pl_bwork;
179 if (delta > (int)((float)etus * plane_grow_scale))
180 delta = (int)((float)etus * plane_grow_scale);
181 if (delta > 100 - pp->pln_effic)
182 delta = 100 - pp->pln_effic;
184 build = get_materials(sp, pcp->pl_mat, delta);
189 used = build * pcp->pl_bwork;
190 avail = roundavg((sp->sct_avail * 100 - used) / 100.0);
193 sp->sct_avail = avail;
195 if (sp->sct_type != SCT_AIRPT)
198 if ((pp->pln_effic + build) > 80)
199 build = 80 - pp->pln_effic;
202 bp_set_from_sect(bp, sp);
203 np->nat_money -= roundavg(mult * build * pcp->pl_cost / 100.0);
205 if (!player->simulation)
206 pp->pln_effic += (signed char)build;