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:
53 prod_plane(int etus, int natnum, int *bp, int buildem)
57 /* Build = 1, maintain =0 */
64 int lcm_needed, hcm_needed;
69 struct plchrstr *desc;
78 int start_money, onship;
80 for (n = 0; NULL != (pp = getplanep(n)); n++) {
83 if (pp->pln_own != natnum)
85 if (pp->pln_effic < PLANE_MINEFF) {
86 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
87 pp->pln_x, pp->pln_y);
92 plp = &plchr[(int)pp->pln_type];
93 if (pp->pln_flags & PLN_LAUNCHED) {
95 if ((!player->simulation) &&
96 (plp->pl_flags & P_O) &&
97 (pp->pln_flags & PLN_LAUNCHED) &&
98 !(plp->pl_flags & P_M) &&
99 !(pp->pln_flags & PLN_SYNCHRONOUS))
106 shp = (struct shpstr *)0;
107 if (pp->pln_ship >= 0 && (buildem == 1)) {
108 if (pp->pln_effic >= 80)
111 shp = getshipp(pp->pln_ship);
112 if (shp == 0 || shp->shp_own != pp->pln_own) {
113 /* nplane is unsigned... */
114 if (shp->shp_nplane > 0)
116 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
122 np = getnatp(pp->pln_own);
123 desc = &plchr[(int)pp->pln_type];
124 sp = getsectp(pp->pln_x, pp->pln_y);
126 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
130 /* flight pay is 5x the pay received by other military */
131 start_money = np->nat_money;
132 cost = -(mult * etus * MIN(0.0, desc->pl_cost * money_plane));
133 if ((np->nat_priorities[PRI_PMAINT] == 0 ||
134 np->nat_money < cost) && !player->simulation) {
135 if ((eff = pp->pln_effic - etus / 5) < PLANE_MINEFF) {
137 "%s lost to lack of maintenance\n", prplane(pp));
138 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
144 "%s lost %d%% to lack of maintenance\n",
145 prplane(pp), pp->pln_effic - eff);
148 np->nat_money -= cost;
151 np->nat_money += (etus * plp->pl_crew * money_mil * 5);
153 air_money[pp->pln_own] += np->nat_money - start_money;
155 if (player->simulation)
156 np->nat_money = start_money;
157 if ((pp->pln_flags & PLN_LAUNCHED) == PLN_LAUNCHED)
162 if (np->nat_priorities[PRI_PBUILD] == 0 || np->nat_money < 0)
165 start_money = np->nat_money;
166 left = 100 - pp->pln_effic;
170 if (!player->simulation)
171 avail = sp->sct_avail * 100;
173 avail = gt_bg_nmbr(bp, sp, I_MAX + 1) * 100;
175 if (pp->pln_ship >= 0) {
176 shp = getshipp(pp->pln_ship);
177 avail += (etus * shp->shp_item[I_MILIT] / 2);
179 w_p_eff = PLN_BLD_WORK(desc->pl_lcm, desc->pl_hcm);
180 delta = roundavg((double)avail / w_p_eff);
183 if (delta > (int)((float)etus * plane_grow_scale))
184 delta = (int)((float)etus * plane_grow_scale);
188 /* delta is the max amount we can grow */
190 left = 100 - pp->pln_effic;
194 leftp = ((float)left / 100.0);
195 memset(mvec, 0, sizeof(mvec));
196 mvec[I_MILIT] = mil_needed =
197 ldround((double)(plp->pl_crew * leftp), 1);
198 mvec[I_LCM] = lcm_needed =
199 ldround((double)(plp->pl_lcm * leftp), 1);
200 mvec[I_HCM] = hcm_needed =
201 ldround((double)(plp->pl_hcm * leftp), 1);
203 get_materials(sp, bp, mvec, 0);
205 if (mvec[I_MILIT] >= mil_needed)
208 buildp = ((float)mvec[I_MILIT] / (float)plp->pl_crew);
210 if (mvec[I_LCM] < lcm_needed)
211 buildp = MIN(buildp, ((float)mvec[I_LCM] /
212 (float)plp->pl_lcm));
214 if (mvec[I_HCM] < hcm_needed)
215 buildp = MIN(buildp, ((float)mvec[I_HCM] /
216 (float)plp->pl_hcm));
218 build = ldround((double)(buildp * 100.0), 1);
219 memset(mvec, 0, sizeof(mvec));
220 mvec[I_MILIT] = mil_needed =
221 roundavg((double)(plp->pl_crew * buildp));
222 mvec[I_LCM] = lcm_needed =
223 roundavg((double)(plp->pl_lcm * buildp));
224 mvec[I_HCM] = hcm_needed =
225 roundavg((double)(plp->pl_hcm * buildp));
227 get_materials(sp, bp, mvec, 1);
231 used = build * w_p_eff;
234 * I didn't use roundavg here, because I want to
235 * penalize the player with a large number of planes.
237 if (!player->simulation)
238 avail = (sp->sct_avail * 100 - used) / 100;
240 avail = (gt_bg_nmbr(bp, sp, I_MAX + 1) * 100 - used) / 100;
244 if (!player->simulation)
245 sp->sct_avail = avail;
247 pt_bg_nmbr(bp, sp, I_MAX + 1, avail);
249 if (sp->sct_type != SCT_AIRPT)
252 if ((pp->pln_effic + build) > 80)
253 build = 80 - pp->pln_effic;
255 np->nat_money -= roundavg(mult * build *
256 desc->pl_cost / 100.0);
257 air_money[pp->pln_own] += np->nat_money - start_money;
259 if (!player->simulation)
260 pp->pln_effic += (s_char)build;
262 np->nat_money = start_money;