2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2007, 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 (!snxtitem(&ni_bomb, EF_PLANE, player->argp[1]))
68 if (!snxtitem(&ni_esc, EF_PLANE,
69 getstarg(player->argp[2], "escort(s)? ", buf)))
70 pr("No escorts...\n");
71 if (!get_assembly_point(player->argp[3], &ap_sect, buf))
75 if (getpath(flightpath, player->argp[4], ax, ay, 0, 0, P_FLYING) == 0
80 (void)pathtoxy(flightpath, &tx, &ty, fcost);
81 getsect(tx, ty, &target);
82 pr("LZ is %s\n", xyas(tx, ty, player->cnum));
83 ap_to_target = strlen(flightpath);
84 if (flightpath[ap_to_target - 1] == 'h')
86 pr("range to target is %d\n", ap_to_target);
88 * select planes within range
90 pln_sel(&ni_bomb, &bomb_list, &ap_sect, ap_to_target,
91 2, P_C | wantflags, P_M | P_O);
92 pln_sel(&ni_esc, &esc_list, &ap_sect, ap_to_target,
93 2, P_ESC | P_F, P_M | P_O);
95 * now arm and equip the bombers, transports, whatever.
98 mission_flags |= P_X; /* stealth (shhh) */
99 mission_flags |= P_H; /* gets turned off if not all choppers */
100 mission_flags = pln_arm(&bomb_list, 2 * ap_to_target, 'a',
101 &ichr[I_MILIT], 0, mission_flags);
102 if (QEMPTY(&bomb_list)) {
103 pr("No planes could be equipped for the mission.\n");
106 mission_flags = pln_arm(&esc_list, 2 * ap_to_target, 'a',
107 &ichr[I_MILIT], P_ESC | P_F, mission_flags);
108 ac_encounter(&bomb_list, &esc_list, ax, ay, flightpath, mission_flags,
110 if (QEMPTY(&bomb_list)) {
111 pr("No planes got through fighter defenses\n");
113 getsect(tx, ty, &target);
114 paradrop(&bomb_list, tx, ty);
122 paradrop(struct emp_qelem *list, coord x, coord y)
124 struct combat off[1]; /* assaulting ship or sector */
125 struct combat def[1]; /* defending ship */
126 struct emp_qelem olist; /* assaulting units */
127 struct emp_qelem dlist; /* defending units */
128 int ototal; /* total assaulting strength */
129 int a_engineer = 0; /* assaulter engineers are present */
130 int a_spy = 0; /* the best assaulter scout */
131 double osupport = 1.0; /* assault support */
132 double dsupport = 1.0; /* defense support */
134 struct emp_qelem *qp;
136 /* Check for valid attack */
138 att_combat_init(def, EF_SECTOR);
141 if (att_abort(A_PARA, 0, def))
144 /* Show what we're air-assaulting, and check treaties */
149 /* set what we're air-assaulting with */
152 att_combat_init(off, EF_PLANE);
153 for (qp = list->q_forw; qp != list; qp = qp->q_forw) {
154 plp = (struct plist *)qp;
155 if (plp->pcp->pl_flags & (P_V | P_C))
156 off->troops += plp->misc;
158 off->mil = off->troops;
159 if (att_abort(A_PARA, off, def)) {
160 pr("Air-Assault aborted\n");
164 ototal = att_get_offense(A_PARA, off, &olist, def);
165 if (att_abort(A_PARA, off, def)) {
166 pr("Air-assault aborted\n");
170 /* Get the defense */
172 att_get_defense(&olist, def, &dlist, a_spy, ototal);
174 /* Get defender support */
176 att_get_support(A_PARA, 0, 0, 0, 0,
177 &olist, off, &dlist, def, &osupport, &dsupport,
180 if (att_abort(A_PARA, off, def)) {
181 pr("Air-assault aborted\n");
185 * Death, carnage, and destruction.
188 att_fight(A_PARA, off, &olist, osupport, def, &dlist, dsupport);