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 * damage.c: Damage stuff.
30 * Known contributors to this file:
53 ship_damage(struct shpstr *sp, int dam)
61 mpr(sp->shp_own, "\t%s takes %d\n", prship(sp), dam);
63 sp->shp_effic = damage((int)sp->shp_effic, dam);
64 if (sp->shp_mobil > 0)
65 sp->shp_mobil = damage((int)sp->shp_mobil, dam);
66 if (opt_FUEL && sp->shp_fuel)
67 sp->shp_fuel = damage((int)sp->shp_fuel, dam);
68 sp->shp_nv = vl_damage(dam, sp->shp_vtype, sp->shp_vamt,
73 shipdamage(struct shpstr *sp, int dam)
75 ship_damage(sp, (int)( dam/(1.0 + sp->shp_armor / 100.0)));
79 land_damage(struct lndstr *lp, int dam)
86 mpr(lp->lnd_own, "\t%s takes %d\n", prland(lp), dam);
87 if (lchr[(int)lp->lnd_type].l_flags & L_SPY) {
91 lp->lnd_effic = damage((int)lp->lnd_effic, dam);
92 if (lp->lnd_mobil > 0)
93 lp->lnd_mobil = damage((int)lp->lnd_mobil, dam);
94 if (opt_FUEL && lp->lnd_fuel)
95 lp->lnd_fuel = damage((int)lp->lnd_fuel, dam);
96 lp->lnd_nv = vl_damage(dam, lp->lnd_vtype, lp->lnd_vamt,
102 landdamage(struct lndstr *lp, int dam)
104 double damage_factor, m;
105 extern int land_mob_max;
107 m = (double)land_mob_max;
109 /* fortification reduces damage */
110 damage_factor = m / (m+((double)lp->lnd_harden));
111 if (damage_factor == 0.0)
114 /* vulnerable units take more damage */
115 damage_factor *= lp->lnd_vul / 100.0;
117 land_damage(lp, ldround(damage_factor * dam,1));
121 planedamage(struct plnstr *pp, int dam)
128 mpr(pp->pln_own, "\t%s takes %d\n", prplane(pp), dam);
129 pp->pln_effic = damage((int)pp->pln_effic, dam);
130 if (pp->pln_mobil > 0)
131 pp->pln_mobil = damage((int)pp->pln_mobil, dam);
135 * nukedamage() actually just calculates damage
136 * rather than inflicting it.
139 nukedamage(struct nchrstr *ncp, int range, int airburst)
146 rad = (int) (rad * 1.5);
150 /* larger area, less center damage */
151 dam = (int) ((ncp->n_dam * 0.75) - (range * 20));
153 /* smaller area, more center damage */
154 dam = (int) (ncp->n_dam / (range + 1.0));
162 damage(register int amt, int pct)
171 if ((random() % 100) < (tmp % 100))
176 /* asymptotic damage to commodities, efficiency, and sectors */
178 effdamage(register int amt, int dam)
180 return damage(amt, PERCENT_DAMAGE(dam));
184 commdamage(register int amt, int dam, int vtype)
186 extern double people_damage;
189 if (vtype == V_BAR && opt_SUPER_BARS)
192 lost = amt - effdamage(amt, dam);
194 if (vtype == V_MILIT ||
197 lost = ldround(people_damage * lost, 1);