2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2005, 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 the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * plane.c: Do production for planes
30 * Known contributors to this file:
51 #define MIN(x,y) ((x) > (y) ? (y) : (x))
55 prod_plane(int etus, int natnum, int *bp, int buildem)
59 /* Build = 1, maintain =0 */
66 int lcm_needed, hcm_needed;
71 struct plchrstr *desc;
80 int start_money, onship = 0;
82 for (n = 0; NULL != (pp = getplanep(n)); n++) {
85 if (pp->pln_own != natnum)
87 if (pp->pln_effic < PLANE_MINEFF) {
88 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
89 pp->pln_x, pp->pln_y);
94 plp = &plchr[(int)pp->pln_type];
95 if (pp->pln_flags & PLN_LAUNCHED) {
97 if ((!player->simulation) &&
98 (plp->pl_flags & P_O) &&
99 (pp->pln_flags & PLN_LAUNCHED) &&
100 !(plp->pl_flags & P_M) &&
101 !(pp->pln_flags & PLN_SYNCHRONOUS))
108 shp = (struct shpstr *)0;
109 if (pp->pln_ship >= 0 && (buildem == 1)) {
110 if (pp->pln_effic >= 80)
113 shp = getshipp(pp->pln_ship);
114 if (shp == 0 || shp->shp_own != pp->pln_own) {
115 /* nplane is unsigned... */
116 if (shp->shp_nplane > 0)
118 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
124 np = getnatp(pp->pln_own);
125 desc = &plchr[(int)pp->pln_type];
126 sp = getsectp(pp->pln_x, pp->pln_y);
128 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
132 /* flight pay is 5x the pay received by other military */
133 start_money = np->nat_money;
134 cost = -(mult * etus * dmin(0.0, desc->pl_cost * money_plane));
135 if ((np->nat_priorities[PRI_PMAINT] == 0 ||
136 np->nat_money < cost) && !player->simulation) {
137 if ((eff = pp->pln_effic - etus / 5) < PLANE_MINEFF) {
139 "%s lost to lack of maintenance\n", prplane(pp));
140 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
146 "%s lost %d%% to lack of maintenance\n",
147 prplane(pp), pp->pln_effic - eff);
150 np->nat_money -= cost;
153 np->nat_money += (etus * plp->pl_crew * money_mil * 5);
155 air_money[pp->pln_own] += np->nat_money - start_money;
157 if (player->simulation)
158 np->nat_money = start_money;
159 if ((pp->pln_flags & PLN_LAUNCHED) == PLN_LAUNCHED)
164 if (np->nat_priorities[PRI_PBUILD] == 0 || np->nat_money < 0)
167 start_money = np->nat_money;
168 left = 100 - pp->pln_effic;
172 if (!player->simulation)
173 avail = sp->sct_avail * 100;
175 avail = gt_bg_nmbr(bp, sp, I_MAX + 1) * 100;
177 if (pp->pln_ship >= 0) {
178 shp = getshipp(pp->pln_ship);
179 avail += (etus * shp->shp_item[I_MILIT] / 2);
181 w_p_eff = PLN_BLD_WORK(desc->pl_lcm, desc->pl_hcm);
182 delta = roundavg((double)avail / w_p_eff);
185 if (delta > (int)((float)etus * plane_grow_scale))
186 delta = (int)((float)etus * plane_grow_scale);
190 /* delta is the max amount we can grow */
192 left = 100 - pp->pln_effic;
196 leftp = ((float)left / 100.0);
197 memset(mvec, 0, sizeof(mvec));
198 mvec[I_MILIT] = mil_needed =
199 ldround((double)(plp->pl_crew * leftp), 1);
200 mvec[I_LCM] = lcm_needed =
201 ldround((double)(plp->pl_lcm * leftp), 1);
202 mvec[I_HCM] = hcm_needed =
203 ldround((double)(plp->pl_hcm * leftp), 1);
205 get_materials(sp, bp, mvec, 0);
207 if (mvec[I_MILIT] >= mil_needed)
210 buildp = ((float)mvec[I_MILIT] / (float)plp->pl_crew);
212 if (mvec[I_LCM] < lcm_needed)
213 buildp = MIN(buildp, ((float)mvec[I_LCM] /
214 (float)plp->pl_lcm));
216 if (mvec[I_HCM] < hcm_needed)
217 buildp = MIN(buildp, ((float)mvec[I_HCM] /
218 (float)plp->pl_hcm));
220 build = ldround((double)(buildp * 100.0), 1);
221 memset(mvec, 0, sizeof(mvec));
222 mvec[I_MILIT] = mil_needed =
223 roundavg((double)(plp->pl_crew * buildp));
224 mvec[I_LCM] = lcm_needed =
225 roundavg((double)(plp->pl_lcm * buildp));
226 mvec[I_HCM] = hcm_needed =
227 roundavg((double)(plp->pl_hcm * buildp));
229 get_materials(sp, bp, mvec, 1);
233 used = build * w_p_eff;
236 * I didn't use roundavg here, because I want to
237 * penalize the player with a large number of planes.
239 if (!player->simulation)
240 avail = (sp->sct_avail * 100 - used) / 100;
242 avail = (gt_bg_nmbr(bp, sp, I_MAX + 1) * 100 - used) / 100;
246 if (!player->simulation)
247 sp->sct_avail = avail;
249 pt_bg_nmbr(bp, sp, I_MAX + 1, avail);
251 if (sp->sct_type != SCT_AIRPT)
254 if ((pp->pln_effic + build) > 80)
255 build = 80 - pp->pln_effic;
257 np->nat_money -= roundavg(mult * build *
258 desc->pl_cost / 100.0);
259 air_money[pp->pln_own] += np->nat_money - start_money;
261 if (!player->simulation)
262 pp->pln_effic += (s_char)build;
264 np->nat_money = start_money;