2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2000, 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:
52 #define MIN(x,y) ((x) > (y) ? (y) : (x))
56 prod_plane(int etus, int natnum, int *bp, int buildem)
60 /* Build = 1, maintain =0 */
62 register struct plnstr *pp;
63 register struct plchrstr *plp;
67 int lcm_needed, hcm_needed;
73 struct plchrstr *desc;
82 int start_money, onship = 0;
84 for (n = 0; NULL != (pp = getplanep(n)); n++) {
87 if (pp->pln_own != natnum)
89 if (pp->pln_effic < PLANE_MINEFF) {
90 makelost(EF_PLANE, pp->pln_own, pp->pln_uid,
91 pp->pln_x, pp->pln_y);
96 plp = &plchr[(int)pp->pln_type];
97 if (pp->pln_flags & PLN_LAUNCHED) {
98 if (opt_ORBIT && (buildem == 0)) {
99 if ((!player->simulation) &&
100 (plp->pl_flags & P_O) &&
101 (pp->pln_flags & PLN_LAUNCHED) &&
102 !(plp->pl_flags & P_M) &&
103 !(pp->pln_flags & PLN_SYNCHRONOUS))
110 shp = (struct shpstr *)0;
111 if (pp->pln_ship >= 0 && (buildem == 1)) {
112 if (pp->pln_effic >= 80)
115 shp = getshipp(pp->pln_ship);
116 if (shp == 0 || shp->shp_own != pp->pln_own) {
117 /* nplane is unsigned... */
118 if (shp->shp_nplane > 0)
120 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
126 np = getnatp(pp->pln_own);
127 desc = &plchr[(int)pp->pln_type];
128 sp = getsectp(pp->pln_x, pp->pln_y);
129 getvec(VT_ITEM, svec, (s_char *)sp, EF_SECTOR);
131 if (np->nat_level[NAT_TLEV] < pp->pln_tech * 0.85)
135 /* flight pay is 5x the pay received by other military */
136 start_money = np->nat_money;
137 cost = -(mult * etus * dmin(0.0, desc->pl_cost * money_plane));
138 if ((np->nat_priorities[PRI_PMAINT] == 0 ||
139 np->nat_money < cost) && !player->simulation) {
140 if ((eff = pp->pln_effic - etus / 5) < PLANE_MINEFF) {
142 "%s lost to lack of maintenance\n", prplane(pp));
143 makelost(EF_PLANE, pp->pln_own, pp->pln_uid, pp->pln_x,
149 "%s lost %d%% to lack of maintenance\n",
150 prplane(pp), pp->pln_effic - eff);
153 np->nat_money -= cost;
156 np->nat_money += (etus * plp->pl_crew * money_mil * 5);
158 air_money[pp->pln_own] += np->nat_money - start_money;
160 if (player->simulation)
161 np->nat_money = start_money;
162 if ((pp->pln_flags & PLN_LAUNCHED) == PLN_LAUNCHED)
167 if (np->nat_priorities[PRI_PBUILD] == 0 || np->nat_money < 0)
170 start_money = np->nat_money;
171 left = 100 - pp->pln_effic;
175 if (!player->simulation)
176 avail = sp->sct_avail * 100;
178 avail = gt_bg_nmbr(bp, sp, I_MAX + 1) * 100;
180 if (pp->pln_ship >= 0) {
182 shp = getshipp(pp->pln_ship);
183 getvec(VT_ITEM, vec, (s_char *)shp, EF_SHIP);
184 avail += (etus * vec[I_MILIT] / 2);
186 w_p_eff = 20 + (desc->pl_lcm + 2 * desc->pl_hcm);
187 delta = roundavg((double)avail / w_p_eff);
190 if (delta > etus * plane_grow_scale)
191 delta = etus * plane_grow_scale;
195 /* delta is the max amount we can grow */
197 left = 100 - pp->pln_effic;
201 leftp = ((float)left / 100.0);
202 memset(mvec, 0, sizeof(mvec));
203 mvec[I_MILIT] = mil_needed =
204 ldround((double)(plp->pl_crew * leftp), 1);
205 mvec[I_LCM] = lcm_needed =
206 ldround((double)(plp->pl_lcm * leftp), 1);
207 mvec[I_HCM] = hcm_needed =
208 ldround((double)(plp->pl_hcm * leftp), 1);
210 get_materials(sp, bp, mvec, 0);
212 if (mvec[I_MILIT] >= mil_needed)
215 buildp = ((float)mvec[I_MILIT] / (float)plp->pl_crew);
217 if (mvec[I_LCM] < lcm_needed)
218 buildp = MIN(buildp, ((float)mvec[I_LCM] /
219 (float)plp->pl_lcm));
221 if (mvec[I_HCM] < hcm_needed)
222 buildp = MIN(buildp, ((float)mvec[I_HCM] /
223 (float)plp->pl_hcm));
225 build = ldround((double)(buildp * 100.0), 1);
226 memset(mvec, 0, sizeof(mvec));
227 mvec[I_MILIT] = mil_needed =
228 roundavg((double)(plp->pl_crew * buildp));
229 mvec[I_LCM] = lcm_needed =
230 roundavg((double)(plp->pl_lcm * buildp));
231 mvec[I_HCM] = hcm_needed =
232 roundavg((double)(plp->pl_hcm * buildp));
234 get_materials(sp, bp, mvec, 1);
238 used = build * w_p_eff;
241 * I didn't use roundavg here, because I want to
242 * penalize the player with a large number of planes.
244 if (!player->simulation)
245 avail = (sp->sct_avail * 100 - used) / 100;
247 avail = (gt_bg_nmbr(bp, sp, I_MAX + 1) * 100 - used) / 100;
251 if (!player->simulation)
252 sp->sct_avail = avail;
254 pt_bg_nmbr(bp, sp, I_MAX + 1, avail);
256 if (sp->sct_type != SCT_AIRPT)
259 if ((pp->pln_effic + build) > 80)
260 build = 80 - pp->pln_effic;
262 np->nat_money -= roundavg(mult * build *
263 desc->pl_cost / 100.0);
264 air_money[pp->pln_own] += np->nat_money - start_money;
266 if (!player->simulation)
267 pp->pln_effic += (s_char)build;
269 np->nat_money = start_money;