Import of Empire 4.2.12
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src/lib/commands/fly.c
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152
src/lib/commands/fly.c
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/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2000, 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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* 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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*/
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#include "misc.h"
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#include "player.h"
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#include "var.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 "nuke.h"
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#include "xy.h"
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#include "nsc.h"
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#include "news.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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fly(void)
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{
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s_char *p;
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int mission_flags;
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int tech;
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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 shpstr ship;
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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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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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int dst_type;
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s_char *dst_ptr;
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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, 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 || *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,
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0, P_FLYING) == 0 || *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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getsect(tx, ty, &target);
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cno = -1;
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ip = whatitem(player->argp[5], "transport what? ");
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mission_flags = 0;
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if (pln_onewaymission(&target, &cno, &wantflags) < 0)
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return RET_SYN;
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if (cno < 0) {
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dst_ptr = (s_char *) ⌖
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dst_type = EF_SECTOR;
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} else {
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getship(cno, &ship);
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dst_ptr = (s_char *) &ship;
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dst_type = EF_SHIP;
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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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pln_sel(&ni_bomb, &bomb_list, &ap_sect, ap_to_target,
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1, wantflags, P_M|P_O);
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wantflags |= P_F;
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wantflags |= P_ESC;
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pln_sel(&ni_esc, &esc_list, &ap_sect, ap_to_target,
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1, wantflags, P_M|P_O);
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/*
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* now arm and equip the bombers, transports, whatever.
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* tech is stored in high 16 bits of mission_flags.
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* yuck.
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*/
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tech=0;
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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 = pln_arm(&bomb_list, ap_to_target, 't', ip, 0, mission_flags,&tech);
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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, ap_to_target, 't', ip, P_ESC|P_F, mission_flags,&tech);
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ac_encounter(&bomb_list,&esc_list,ax,ay,flightpath,mission_flags,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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pln_dropoff(&bomb_list, ip, tx, ty, dst_ptr, dst_type);
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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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