156 lines
4.7 KiB
C
156 lines
4.7 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2005, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
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* related information and legal notices. It is expected that any future
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* projects/authors will amend these files as needed.
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*
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* ---
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*
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* drop.c: Air-drop commodities
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*
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* Known contributors to this file:
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* Dave Pare, 1986
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*/
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#include "misc.h"
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#include "player.h"
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#include "sect.h"
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#include "ship.h"
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#include "item.h"
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#include "plane.h"
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#include "xy.h"
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#include "nsc.h"
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#include "file.h"
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#include "nat.h"
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#include "path.h"
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#include "commands.h"
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int
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drop(void)
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{
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s_char *p;
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int mission_flags;
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coord tx, ty;
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coord ax, ay;
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int ap_to_target;
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struct ichrstr *ip;
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s_char flightpath[MAX_PATH_LEN];
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struct nstr_item ni_bomb;
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struct nstr_item ni_esc;
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coord x, y;
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struct sctstr target;
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struct emp_qelem bomb_list;
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struct emp_qelem esc_list;
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int wantflags;
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struct sctstr ap_sect;
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s_char buf[1024];
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wantflags = 0;
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if (!snxtitem(&ni_bomb, EF_PLANE, player->argp[1]))
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return RET_SYN;
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if (!snxtitem(&ni_esc, EF_PLANE,
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getstarg(player->argp[2], "escort(s)? ", buf)))
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pr("No escorts...\n");
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if ((p = getstarg(player->argp[3], "assembly point? ", buf)) == 0
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|| *p == 0)
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return RET_SYN;
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if (!sarg_xy(p, &x, &y) || !getsect(x, y, &ap_sect))
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return RET_SYN;
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if (ap_sect.sct_own && ap_sect.sct_own != player->cnum &&
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getrel(getnatp(ap_sect.sct_own), player->cnum) != ALLIED) {
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pr("Assembly point not owned by you or an ally!\n");
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return RET_SYN;
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}
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ax = x;
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ay = y;
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if (getpath(flightpath, player->argp[4], ax, ay, 0, 0, P_FLYING) == 0
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|| *flightpath == 0)
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return RET_SYN;
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tx = ax;
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ty = ay;
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(void)pathtoxy(flightpath, &tx, &ty, fcost);
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pr("target is %s\n", xyas(tx, ty, player->cnum));
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if ((ip = whatitem(player->argp[5], "Drop off what? ")) == 0)
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return RET_SYN;
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getsect(tx, ty, &target);
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if (target.sct_own == player->cnum
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|| getrel(getnatp(target.sct_own), player->cnum) == ALLIED) {
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if (ip->i_vtype == I_CIVIL && target.sct_own != target.sct_oldown) {
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pr("Can't drop civilians into occupied sectors.\n");
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return RET_FAIL;
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}
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} else {
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/* into the unknown... */
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if (ip->i_vtype != I_SHELL) {
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pr("You don't own %s!\n", xyas(tx, ty, player->cnum));
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return RET_FAIL;
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}
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wantflags = P_MINE;
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}
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ap_to_target = strlen(flightpath);
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if (*(flightpath + strlen(flightpath) - 1) == 'h')
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ap_to_target--;
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pr("range to target is %d\n", ap_to_target);
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/*
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* select planes within range
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*/
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mission_flags = 0;
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pln_sel(&ni_bomb, &bomb_list, &ap_sect, ap_to_target,
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2, wantflags, P_M | P_O);
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if (QEMPTY(&bomb_list)) {
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pr("No planes could be equipped for the mission.\n");
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return RET_FAIL;
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}
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pln_sel(&ni_esc, &esc_list, &ap_sect, ap_to_target,
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2, P_ESC | P_F, P_M | P_O);
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/*
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* now arm and equip the bombers, transports, whatever.
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*/
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mission_flags |= P_X; /* stealth (shhh) */
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mission_flags |= P_H; /* gets turned off if not all choppers */
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mission_flags |= P_MINE;
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mission_flags = pln_arm(&bomb_list, 2 * ap_to_target, 'd',
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ip, 0, mission_flags);
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if (QEMPTY(&bomb_list)) {
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pr("No planes could be equipped for the mission.\n");
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return RET_FAIL;
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}
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mission_flags = pln_arm(&esc_list, 2 * ap_to_target, 'd',
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ip, P_ESC | P_F, mission_flags);
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ac_encounter(&bomb_list, &esc_list, ax, ay, flightpath, mission_flags,
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0, 0, 0);
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if (QEMPTY(&bomb_list)) {
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pr("No planes got through fighter defenses\n");
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} else {
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getsect(tx, ty, &target);
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if (target.sct_type == SCT_WATER && (mission_flags & P_MINE)
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&& ip->i_vtype == I_SHELL)
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pln_mine(&bomb_list, &target);
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else
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pln_dropoff(&bomb_list, ip, tx, ty, &target, EF_SECTOR);
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}
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pln_put(&bomb_list);
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pln_put(&esc_list);
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return RET_OK;
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}
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