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
53 static void planerepair(struct plnstr *, struct natstr *, int *, int);
54 static void upd_plane(struct plnstr *, int, struct natstr *, int *, int);
57 prod_plane(int etus, int natnum, int *bp, int buildem)
58 /* Build = 1, maintain =0 */
65 for (n = 0; NULL != (pp = getplanep(n)); n++) {
68 if (pp->pln_own != natnum)
70 if (pp->pln_effic < PLANE_MINEFF) {
71 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
72 pp->pln_x, pp->pln_y);
77 if (pp->pln_flags & PLN_LAUNCHED) {
78 if (!player->simulation && buildem == 0
79 && !(pp->pln_flags & PLN_SYNCHRONOUS))
84 np = getnatp(pp->pln_own);
85 start_money = np->nat_money;
86 upd_plane(pp, etus, np, bp, buildem);
87 air_money[pp->pln_own] += np->nat_money - start_money;
88 if (buildem == 0 || np->nat_money != start_money)
90 if (player->simulation)
91 np->nat_money = start_money;
98 upd_plane(struct plnstr *pp, int etus,
99 struct natstr *np, int *bp, int build)
101 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
105 if (!pp->pln_off && np->nat_money >= 0)
106 planerepair(pp, np, bp, etus);
107 if (!player->simulation)
111 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
113 cost = -(mult * etus * MIN(0.0, pcp->pl_cost * money_plane));
114 if (np->nat_money < cost && !player->simulation) {
115 if ((eff = pp->pln_effic - etus / 5) < PLANE_MINEFF) {
117 "%s lost to lack of maintenance\n", prplane(pp));
118 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
119 pp->pln_x, pp->pln_y);
124 "%s lost %d%% to lack of maintenance\n",
125 prplane(pp), pp->pln_effic - eff);
128 np->nat_money -= cost;
130 /* flight pay is 5x the pay received by other military */
131 np->nat_money += etus * pcp->pl_crew * money_mil * 5;
136 planerepair(struct plnstr *pp, struct natstr *np, int *bp, int etus)
140 int mil_needed, lcm_needed, hcm_needed;
142 struct shpstr *carrier;
143 struct plchrstr *pcp = &plchr[(int)pp->pln_type];
144 struct sctstr *sp = getsectp(pp->pln_x, pp->pln_y);
152 if (pp->pln_ship >= 0) {
153 if (pp->pln_effic >= 80)
155 carrier = getshipp(pp->pln_ship);
156 if (carrier->shp_off)
158 if (CANT_HAPPEN(!carrier || carrier->shp_own != pp->pln_own))
165 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
168 if (pp->pln_effic == 100)
171 if (!player->simulation)
172 avail = sp->sct_avail * 100;
174 avail = gt_bg_nmbr(bp, sp, I_MAX + 1) * 100;
176 avail += etus * carrier->shp_item[I_MILIT] / 2;
178 w_p_eff = PLN_BLD_WORK(pcp->pl_lcm, pcp->pl_hcm);
179 delta = roundavg((double)avail / w_p_eff);
182 if (delta > (int)((float)etus * plane_grow_scale))
183 delta = (int)((float)etus * plane_grow_scale);
185 /* delta is the max amount we can grow */
187 left = 100 - pp->pln_effic;
191 leftp = left / 100.0;
192 memset(mvec, 0, sizeof(mvec));
193 mvec[I_MILIT] = mil_needed = ldround(pcp->pl_crew * leftp, 1);
194 mvec[I_LCM] = lcm_needed = ldround(pcp->pl_lcm * leftp, 1);
195 mvec[I_HCM] = hcm_needed = ldround(pcp->pl_hcm * leftp, 1);
196 get_materials(sp, bp, mvec, 0);
199 if (mvec[I_MILIT] < mil_needed)
200 buildp = MIN(buildp, (float)mvec[I_MILIT] / (float)pcp->pl_crew);
201 if (mvec[I_LCM] < lcm_needed)
202 buildp = MIN(buildp, (float)mvec[I_LCM] / (float)pcp->pl_lcm);
203 if (mvec[I_HCM] < hcm_needed)
204 buildp = MIN(buildp, (float)mvec[I_HCM] / (float)pcp->pl_hcm);
206 build = ldround(buildp * 100.0, 1);
207 memset(mvec, 0, sizeof(mvec));
208 mvec[I_MILIT] = roundavg(pcp->pl_crew * buildp);
209 mvec[I_LCM] = roundavg(pcp->pl_lcm * buildp);
210 mvec[I_HCM] = roundavg(pcp->pl_hcm * buildp);
211 get_materials(sp, bp, mvec, 1);
216 used = build * w_p_eff;
218 * I didn't use roundavg here, because I want to
219 * penalize the player with a large number of planes.
221 if (!player->simulation)
222 avail = (sp->sct_avail * 100 - used) / 100;
224 avail = (gt_bg_nmbr(bp, sp, I_MAX + 1) * 100 - used) / 100;
228 if (!player->simulation)
229 sp->sct_avail = avail;
231 pt_bg_nmbr(bp, sp, I_MAX + 1, avail);
233 if (sp->sct_type != SCT_AIRPT)
236 if ((pp->pln_effic + build) > 80)
237 build = 80 - pp->pln_effic;
240 np->nat_money -= mult * build * pcp->pl_cost / 100.0;
242 if (!player->simulation)
243 pp->pln_effic += (signed char)build;