2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2008, 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 * para.c: Drop paratroopers onto a sector
30 * Known contributors to this file:
46 static int paradrop(struct emp_qelem *list, coord x, coord y);
55 char flightpath[MAX_PATH_LEN];
56 struct nstr_item ni_bomb;
57 struct nstr_item ni_esc;
59 struct emp_qelem bomb_list;
60 struct emp_qelem esc_list;
62 struct sctstr ap_sect;
66 if (get_planes(&ni_bomb, &ni_esc, player->argp[1], player->argp[2]) < 0)
68 if (!get_assembly_point(player->argp[3], &ap_sect, buf))
72 if (getpath(flightpath, player->argp[4], ax, ay, 0, 0, P_FLYING) == 0
77 (void)pathtoxy(flightpath, &tx, &ty, fcost);
78 getsect(tx, ty, &target);
79 pr("LZ is %s\n", xyas(tx, ty, player->cnum));
80 ap_to_target = strlen(flightpath);
81 if (flightpath[ap_to_target - 1] == 'h')
83 pr("range to target is %d\n", ap_to_target);
85 * select planes within range
87 pln_sel(&ni_bomb, &bomb_list, &ap_sect, ap_to_target,
88 2, P_C | wantflags, P_M | P_O);
89 pln_sel(&ni_esc, &esc_list, &ap_sect, ap_to_target,
90 2, P_ESC | P_F, P_M | P_O);
92 * now arm and equip the bombers, transports, whatever.
95 mission_flags |= P_X; /* stealth (shhh) */
96 mission_flags |= P_H; /* gets turned off if not all choppers */
97 mission_flags = pln_arm(&bomb_list, 2 * ap_to_target, 'a',
98 &ichr[I_MILIT], 0, mission_flags);
99 if (QEMPTY(&bomb_list)) {
100 pr("No planes could be equipped for the mission.\n");
103 mission_flags = pln_arm(&esc_list, 2 * ap_to_target, 'a',
104 &ichr[I_MILIT], P_ESC | P_F, mission_flags);
105 ac_encounter(&bomb_list, &esc_list, ax, ay,
106 flightpath, mission_flags, 0);
107 if (QEMPTY(&bomb_list)) {
108 pr("No planes got through fighter defenses\n");
110 getsect(tx, ty, &target);
111 paradrop(&bomb_list, tx, ty);
119 paradrop(struct emp_qelem *list, coord x, coord y)
121 struct combat off[1]; /* assaulting ship or sector */
122 struct combat def[1]; /* defending ship */
123 struct emp_qelem olist; /* assaulting units */
124 struct emp_qelem dlist; /* defending units */
125 int ototal; /* total assaulting strength */
126 int a_engineer = 0; /* assaulter engineers are present */
127 int a_spy = 0; /* the best assaulter scout */
128 double osupport = 1.0; /* assault support */
129 double dsupport = 1.0; /* defense support */
131 struct emp_qelem *qp;
133 /* Check for valid attack */
135 att_combat_init(def, EF_SECTOR);
138 if (att_abort(A_PARA, 0, def))
141 /* Show what we're air-assaulting, and check treaties */
146 /* set what we're air-assaulting with */
149 att_combat_init(off, EF_PLANE);
150 for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
151 plp = (struct plist *)qp;
152 if (plp->pcp->pl_flags & (P_V | P_C))
153 off->troops += plp->misc;
155 off->mil = off->troops;
156 if (att_abort(A_PARA, off, def)) {
157 pr("Air-Assault aborted\n");
161 ototal = att_get_offense(A_PARA, off, &olist, def);
162 if (att_abort(A_PARA, off, def)) {
163 pr("Air-assault aborted\n");
167 /* Get the defense */
169 att_get_defense(&olist, def, &dlist, a_spy, ototal);
171 /* Get defender support */
173 att_get_support(A_PARA, 0, 0, 0, 0,
174 &olist, off, &dlist, def, &osupport, &dsupport,
177 if (att_abort(A_PARA, off, def)) {
178 pr("Air-assault aborted\n");
182 * Death, carnage, and destruction.
185 att_fight(A_PARA, off, &olist, osupport, def, &dlist, dsupport);