2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2006, 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 files README, COPYING and CREDITS in the root of the source
23 * tree for related information and legal notices. It is expected
24 * that future projects/authors will amend these files as needed.
28 * plane.c: Do production for planes
30 * Known contributors to this file:
33 * Markus Armbruster, 2006
45 static void planerepair(struct plnstr *, struct natstr *, int *, int);
46 static void upd_plane(struct plnstr *, int, struct natstr *, int *, int);
49 prod_plane(int etus, int natnum, int *bp, int buildem)
50 /* Build = 1, maintain =0 */
57 for (n = 0; NULL != (pp = getplanep(n)); n++) {
60 if (pp->pln_own != natnum)
62 if (pp->pln_effic < PLANE_MINEFF) {
63 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
64 pp->pln_x, pp->pln_y);
69 if (pp->pln_flags & PLN_LAUNCHED) {
70 if (!player->simulation && buildem == 0
71 && !(pp->pln_flags & PLN_SYNCHRONOUS))
76 np = getnatp(pp->pln_own);
77 start_money = np->nat_money;
78 upd_plane(pp, etus, np, bp, buildem);
79 air_money[pp->pln_own] += np->nat_money - start_money;
80 if (buildem == 0 || np->nat_money != start_money)
82 if (player->simulation)
83 np->nat_money = start_money;
90 upd_plane(struct plnstr *pp, int etus,
91 struct natstr *np, int *bp, int build)
93 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
97 if (!pp->pln_off && np->nat_money >= 0)
98 planerepair(pp, np, bp, etus);
99 if (!player->simulation)
103 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
105 cost = -(mult * etus * MIN(0.0, pcp->pl_cost * money_plane));
106 if (np->nat_money < cost && !player->simulation) {
107 if ((eff = pp->pln_effic - etus / 5) < PLANE_MINEFF) {
109 "%s lost to lack of maintenance\n", prplane(pp));
110 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
111 pp->pln_x, pp->pln_y);
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, int *bp, int etus)
132 int mil_needed, lcm_needed, hcm_needed;
134 struct shpstr *carrier;
135 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
136 struct sctstr *sp = getsectp(pp->pln_x, pp->pln_y);
144 if (pp->pln_ship >= 0) {
145 if (pp->pln_effic >= 80)
147 carrier = getshipp(pp->pln_ship);
148 if (CANT_HAPPEN(!carrier))
150 if (carrier->shp_off)
152 if ((carrier->shp_own != pp->pln_own) &&
153 (getrel(getnatp(carrier->shp_own), pp->pln_own) != ALLIED))
156 if ((sp->sct_own != pp->pln_own) &&
157 (getrel(getnatp(sp->sct_own), pp->pln_own) != ALLIED))
164 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
167 if (pp->pln_effic == 100)
170 if (!player->simulation)
171 avail = sp->sct_avail * 100;
173 avail = gt_bg_nmbr(bp, sp, I_MAX + 1) * 100;
175 avail += etus * carrier->shp_item[I_MILIT] / 2;
177 w_p_eff = PLN_BLD_WORK(pcp->pl_lcm, pcp->pl_hcm);
178 delta = roundavg((double)avail / w_p_eff);
181 if (delta > (int)((float)etus * plane_grow_scale))
182 delta = (int)((float)etus * plane_grow_scale);
184 /* delta is the max amount we can grow */
186 left = 100 - pp->pln_effic;
190 leftp = left / 100.0;
191 memset(mvec, 0, sizeof(mvec));
192 mvec[I_MILIT] = mil_needed = ldround(pcp->pl_crew * leftp, 1);
193 mvec[I_LCM] = lcm_needed = ldround(pcp->pl_lcm * leftp, 1);
194 mvec[I_HCM] = hcm_needed = ldround(pcp->pl_hcm * leftp, 1);
195 get_materials(sp, bp, mvec, 0);
198 if (mvec[I_MILIT] < mil_needed)
199 buildp = MIN(buildp, (float)mvec[I_MILIT] / (float)pcp->pl_crew);
200 if (mvec[I_LCM] < lcm_needed)
201 buildp = MIN(buildp, (float)mvec[I_LCM] / (float)pcp->pl_lcm);
202 if (mvec[I_HCM] < hcm_needed)
203 buildp = MIN(buildp, (float)mvec[I_HCM] / (float)pcp->pl_hcm);
205 build = ldround(buildp * 100.0, 1);
206 memset(mvec, 0, sizeof(mvec));
207 mvec[I_MILIT] = roundavg(pcp->pl_crew * buildp);
208 mvec[I_LCM] = roundavg(pcp->pl_lcm * buildp);
209 mvec[I_HCM] = roundavg(pcp->pl_hcm * buildp);
210 get_materials(sp, bp, mvec, 1);
215 used = build * w_p_eff;
217 * I didn't use roundavg here, because I want to
218 * penalize the player with a large number of planes.
220 if (!player->simulation)
221 avail = (sp->sct_avail * 100 - used) / 100;
223 avail = (gt_bg_nmbr(bp, sp, I_MAX + 1) * 100 - used) / 100;
227 if (!player->simulation)
228 sp->sct_avail = avail;
230 pt_bg_nmbr(bp, sp, I_MAX + 1, avail);
232 if (sp->sct_type != SCT_AIRPT)
235 if ((pp->pln_effic + build) > 80)
236 build = 80 - pp->pln_effic;
239 np->nat_money -= mult * build * pcp->pl_cost / 100.0;
241 if (!player->simulation)
242 pp->pln_effic += (signed char)build;