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;
77 int start_money, onship;
79 for (n = 0; NULL != (pp = getplanep(n)); n++) {
82 if (pp->pln_own != natnum)
84 if (pp->pln_effic < PLANE_MINEFF) {
85 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
86 pp->pln_x, pp->pln_y);
91 if (pp->pln_flags & PLN_LAUNCHED) {
92 if (!player->simulation && buildem == 0
93 && !(pp->pln_flags & PLN_SYNCHRONOUS))
100 if (pp->pln_ship >= 0 && (buildem == 1)) {
101 if (pp->pln_effic >= 80)
104 shp = getshipp(pp->pln_ship);
105 if (shp == 0 || shp->shp_own != pp->pln_own) {
106 /* nplane is unsigned... */
107 if (shp->shp_nplane > 0)
109 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
110 pp->pln_x, pp->pln_y);
115 np = getnatp(pp->pln_own);
116 pcp = &plchr[(int)pp->pln_type];
117 sp = getsectp(pp->pln_x, pp->pln_y);
119 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
123 /* flight pay is 5x the pay received by other military */
124 start_money = np->nat_money;
125 cost = -(mult * etus * MIN(0.0, pcp->pl_cost * money_plane));
126 if ((np->nat_priorities[PRI_PMAINT] == 0 ||
127 np->nat_money < cost) && !player->simulation) {
128 if ((eff = pp->pln_effic - etus / 5) < PLANE_MINEFF) {
130 "%s lost to lack of maintenance\n", prplane(pp));
131 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
132 pp->pln_x, pp->pln_y);
137 "%s lost %d%% to lack of maintenance\n",
138 prplane(pp), pp->pln_effic - eff);
141 np->nat_money -= cost;
144 np->nat_money += (etus * pcp->pl_crew * money_mil * 5);
146 air_money[pp->pln_own] += np->nat_money - start_money;
148 if (player->simulation)
149 np->nat_money = start_money;
150 if ((pp->pln_flags & PLN_LAUNCHED) == PLN_LAUNCHED)
155 if (np->nat_priorities[PRI_PBUILD] == 0 || np->nat_money < 0)
158 start_money = np->nat_money;
159 left = 100 - pp->pln_effic;
163 if (!player->simulation)
164 avail = sp->sct_avail * 100;
166 avail = gt_bg_nmbr(bp, sp, I_MAX + 1) * 100;
168 if (pp->pln_ship >= 0) {
169 shp = getshipp(pp->pln_ship);
170 avail += (etus * shp->shp_item[I_MILIT] / 2);
172 w_p_eff = PLN_BLD_WORK(pcp->pl_lcm, pcp->pl_hcm);
173 delta = roundavg((double)avail / w_p_eff);
176 if (delta > (int)((float)etus * plane_grow_scale))
177 delta = (int)((float)etus * plane_grow_scale);
181 /* delta is the max amount we can grow */
183 left = 100 - pp->pln_effic;
187 leftp = left / 100.0;
188 memset(mvec, 0, sizeof(mvec));
189 mvec[I_MILIT] = mil_needed = ldround(pcp->pl_crew * leftp, 1);
190 mvec[I_LCM] = lcm_needed = ldround(pcp->pl_lcm * leftp, 1);
191 mvec[I_HCM] = hcm_needed = ldround(pcp->pl_hcm * leftp, 1);
193 get_materials(sp, bp, mvec, 0);
195 if (mvec[I_MILIT] >= mil_needed)
198 buildp = ((float)mvec[I_MILIT] / (float)pcp->pl_crew);
200 if (mvec[I_LCM] < lcm_needed)
201 buildp = MIN(buildp, ((float)mvec[I_LCM] /
202 (float)pcp->pl_lcm));
204 if (mvec[I_HCM] < hcm_needed)
205 buildp = MIN(buildp, ((float)mvec[I_HCM] /
206 (float)pcp->pl_hcm));
208 build = ldround(buildp * 100.0, 1);
209 memset(mvec, 0, sizeof(mvec));
210 mvec[I_MILIT] = mil_needed = roundavg(pcp->pl_crew * buildp);
211 mvec[I_LCM] = lcm_needed = roundavg(pcp->pl_lcm * buildp);
212 mvec[I_HCM] = hcm_needed = roundavg(pcp->pl_hcm * buildp);
214 get_materials(sp, bp, mvec, 1);
218 used = build * w_p_eff;
221 * I didn't use roundavg here, because I want to
222 * penalize the player with a large number of planes.
224 if (!player->simulation)
225 avail = (sp->sct_avail * 100 - used) / 100;
227 avail = (gt_bg_nmbr(bp, sp, I_MAX + 1) * 100 - used) / 100;
231 if (!player->simulation)
232 sp->sct_avail = avail;
234 pt_bg_nmbr(bp, sp, I_MAX + 1, avail);
236 if (sp->sct_type != SCT_AIRPT)
239 if ((pp->pln_effic + build) > 80)
240 build = 80 - pp->pln_effic;
242 np->nat_money -= mult * build * pcp->pl_cost / 100.0;
243 air_money[pp->pln_own] += np->nat_money - start_money;
245 if (!player->simulation)
246 pp->pln_effic += (signed char)build;
248 np->nat_money = start_money;