126 lines
3.7 KiB
C
126 lines
3.7 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2012, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure, Markus Armbruster
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*
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* Empire 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 3 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, see <http://www.gnu.org/licenses/>.
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*
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* ---
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*
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* See files README, COPYING and CREDITS in the root of the source
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* tree for related information and legal notices. It is expected
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* that future projects/authors will amend these files as needed.
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*
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* ---
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*
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* fly.c: fly a plane
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*
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* Known contributors to this file:
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* Dave Pare, 1986
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* Steve McClure, 2000
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* Markus Armbruster, 2004-2012
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*/
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#include <config.h>
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#include "commands.h"
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#include "empobj.h"
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#include "item.h"
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#include "path.h"
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#include "plane.h"
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int
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fly(void)
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{
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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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char flightpath[MAX_PATH_LEN];
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int cno;
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struct nstr_item ni_bomb;
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struct nstr_item ni_esc;
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union empobj_storage 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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char buf[1024];
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wantflags = 0;
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if (get_planes(&ni_bomb, &ni_esc, player->argp[1], player->argp[2]) < 0)
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return RET_SYN;
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if (!get_assembly_point(player->argp[3], &ap_sect, buf))
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return RET_SYN;
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ax = ap_sect.sct_x;
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ay = ap_sect.sct_y;
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if (!getpath(flightpath, player->argp[4], ax, ay, 0, 0, MOB_FLY)
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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("Ending sector is %s\n", xyas(tx, ty, player->cnum));
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ip = whatitem(player->argp[5], "transport what? ");
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if (player->aborted)
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return RET_SYN;
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if (pln_where_to_land(tx, ty, &target, &wantflags) < 0)
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return RET_SYN;
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cno = target.gen.ef_type == EF_SHIP ? target.gen.uid : -1;
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if (ip && ip->i_uid == I_CIVIL
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&& target.gen.ef_type == EF_SECTOR
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&& target.sect.sct_own != target.sect.sct_oldown) {
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pr("Can't fly civilians into occupied sectors.\n");
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return RET_FAIL;
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}
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ap_to_target = strlen(flightpath);
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if (flightpath[ap_to_target - 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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pln_sel(&ni_bomb, &bomb_list, &ap_sect, ap_to_target, 1,
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wantflags, P_M | P_O);
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pln_sel(&ni_esc, &esc_list, &ap_sect, ap_to_target, 1,
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wantflags | P_ESC | P_F, P_M | P_O);
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if (cno >= 0
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&& !pln_can_land_on_carrier(&bomb_list, &esc_list, &target.ship)) {
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pr("Not enough room on ship #%d!\n", cno);
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return RET_FAIL;
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}
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/*
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* now arm and equip the bombers, transports, whatever.
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*/
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pln_arm(&bomb_list, ap_to_target, 't', ip);
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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_arm(&esc_list, ap_to_target, 'e', NULL);
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ac_encounter(&bomb_list, &esc_list, ax, ay, flightpath, 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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pln_dropoff(&bomb_list, ip, tx, ty, cno);
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pln_newlanding(&bomb_list, tx, ty, cno);
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pln_newlanding(&esc_list, tx, ty, cno);
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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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