2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2011, 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, 2006-2010
44 static void planerepair(struct plnstr *, struct natstr *, struct bp *, int);
45 static void upd_plane(struct plnstr *, int, struct natstr *, struct bp *, int);
48 prod_plane(int etus, int natnum, struct bp *bp, int buildem)
49 /* Build = 1, maintain =0 */
56 for (n = 0; NULL != (pp = getplanep(n)); n++) {
59 if (pp->pln_own != natnum)
61 if (pp->pln_effic < PLANE_MINEFF) {
62 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
63 pp->pln_x, pp->pln_y);
68 if (pln_is_in_orbit(pp)) {
69 if (!player->simulation && buildem == 0
70 && !(pp->pln_flags & PLN_SYNCHRONOUS))
75 np = getnatp(pp->pln_own);
76 start_money = np->nat_money;
77 upd_plane(pp, etus, np, bp, buildem);
78 air_money[pp->pln_own] += np->nat_money - start_money;
79 if (buildem == 0 || np->nat_money != start_money)
81 if (player->simulation)
82 np->nat_money = start_money;
89 upd_plane(struct plnstr *pp, int etus,
90 struct natstr *np, struct bp *bp, int build)
92 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
96 if (!pp->pln_off && np->nat_money >= 0)
97 planerepair(pp, np, bp, etus);
98 if (!player->simulation)
102 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
104 cost = -(mult * etus * MIN(0.0, pcp->pl_cost * money_plane));
105 if (np->nat_money < cost && !player->simulation) {
106 if ((eff = pp->pln_effic - etus / 5) < PLANE_MINEFF) {
108 "%s lost to lack of maintenance\n", prplane(pp));
109 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
110 pp->pln_x, pp->pln_y);
112 pp->pln_ship = pp->pln_land = -1;
116 "%s lost %d%% to lack of maintenance\n",
117 prplane(pp), pp->pln_effic - eff);
120 np->nat_money -= cost;
122 /* flight pay is 5x the pay received by other military */
123 np->nat_money += etus * pcp->pl_crew * money_mil * 5;
128 planerepair(struct plnstr *pp, struct natstr *np, struct bp *bp, int etus)
132 struct shpstr *carrier;
133 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
134 struct sctstr *sp = getsectp(pp->pln_x, pp->pln_y);
142 if (pp->pln_ship >= 0) {
143 if (pp->pln_effic >= 80)
145 carrier = getshipp(pp->pln_ship);
146 if (CANT_HAPPEN(!carrier))
148 if (carrier->shp_off)
150 if (relations_with(carrier->shp_own, pp->pln_own) != ALLIED)
153 if (relations_with(sp->sct_own, pp->pln_own) != ALLIED)
160 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
163 if (pp->pln_effic == 100)
166 if (!player->simulation)
167 avail = sp->sct_avail * 100;
169 avail = bp_get_avail(bp, sp) * 100;
171 avail += etus * carrier->shp_item[I_MILIT] / 2;
173 w_p_eff = PLN_BLD_WORK(pcp->pl_lcm, pcp->pl_hcm);
174 delta = roundavg((double)avail / w_p_eff);
177 if (delta > (int)((float)etus * plane_grow_scale))
178 delta = (int)((float)etus * plane_grow_scale);
179 if (delta > 100 - pp->pln_effic)
180 delta = 100 - pp->pln_effic;
182 memset(mvec, 0, sizeof(mvec));
183 mvec[I_MILIT] = pcp->pl_crew;
184 mvec[I_LCM] = pcp->pl_lcm;
185 mvec[I_HCM] = pcp->pl_hcm;
186 build = get_materials(sp, bp, mvec, delta);
191 used = build * w_p_eff;
193 * I didn't use roundavg here, because I want to
194 * penalize the player with a large number of planes.
196 if (!player->simulation)
197 avail = (sp->sct_avail * 100 - used) / 100;
199 avail = (bp_get_avail(bp, sp) * 100 - used) / 100;
203 if (!player->simulation)
204 sp->sct_avail = avail;
206 bp_put_avail(bp, sp, avail);
208 if (sp->sct_type != SCT_AIRPT)
211 if ((pp->pln_effic + build) > 80)
212 build = 80 - pp->pln_effic;
215 np->nat_money -= mult * build * pcp->pl_cost / 100.0;
217 if (!player->simulation)
218 pp->pln_effic += (signed char)build;