/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2015, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure, Markus Armbruster
*
* Empire is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
* ---
*
* See files README, COPYING and CREDITS in the root of the source
* tree for related information and legal notices. It is expected
* that future projects/authors will amend these files as needed.
*
* ---
*
* land.h: Definitions for land units
*
* Known contributors to this file:
* Thomas Ruschak, 1992
* Ken Stevens, 1995
* Steve McClure, 1998
* Markus Armbruster, 2004-2015
*/
#ifndef LAND_H
#define LAND_H
#include
#include "item.h"
#include "retreat.h"
#include "types.h"
#define LND_TYPE_MAX 30
#define LAND_MINEFF 10
#define LAND_MINFIREEFF 40 /* arty must be this effic to fire */
struct lndstr {
/* initial part must match struct empobj */
signed ef_type: 8;
unsigned lnd_seqno: 12;
unsigned lnd_generation: 12;
int lnd_uid; /* unit id (land #) */
time_t lnd_timestamp; /* Last time this unit was touched */
natid lnd_own; /* owner's country num */
coord lnd_x; /* x location in abs coords */
coord lnd_y; /* y location in abs coords */
signed char lnd_type; /* index in lchr[] */
signed char lnd_effic; /* 0% to 100% */
signed char lnd_mobil; /* mobility units */
unsigned char lnd_off; /* repairs stopped? */
short lnd_tech; /* tech level ship was built at */
char lnd_army; /* group membership */
coord lnd_opx, lnd_opy; /* Op sector coords */
short lnd_mission; /* mission code */
short lnd_radius; /* mission radius */
/* end of part matching struct empobj */
int lnd_ship; /* uid of transporting ship, or -1 */
signed char lnd_harden; /* fortification */
short lnd_retreat; /* retreat percentage */
int lnd_rflags; /* When do I retreat? */
char lnd_rpath[RET_LEN]; /* retreat path */
unsigned char lnd_scar; /* how experienced the unit is (not used) */
short lnd_item[I_MAX+1]; /* amount of items on board */
short lnd_pstage; /* plague stage */
short lnd_ptime; /* how many etus remain in this stage */
int lnd_land; /* uid of transporting land unit, or -1 */
short lnd_access; /* Last tick mob was updated (MOB_ACCESS) */
};
struct lchrstr {
short l_item[I_MAX+1]; /* load limit */
char *l_name; /* full name of type of land unit */
int l_lcm; /* units of lcm to build */
int l_hcm; /* units of hcm to build */
int l_mil; /* how many mil it takes to build (unused) */
int l_gun; /* how many guns it takes to build (unused) */
int l_shell; /* #shells it takes to build (unused) */
int l_tech; /* tech required to build */
int l_cost; /* how much it costs to build */
float l_att; /* attack multiplier */
float l_def; /* defense multiplier */
int l_vul; /* vulnerability (0-100) */
int l_spd; /* speed */
int l_vis; /* visibility */
int l_spy; /* Seeing distance */
int l_rad; /* reaction radius */
int l_frg; /* firing range */
int l_acc; /* firing accuracy */
int l_dam; /* # of guns firing */
int l_ammo; /* firing ammu used per shot */
int l_aaf; /* aa fire */
int l_flags; /* what special things can this unit do */
unsigned char l_nxlight; /* maximum number of xlight planes */
unsigned char l_nland; /* maximum number of units */
signed char l_type; /* index in lchr[] */
};
/* Land unit ability flags */
#define L_ENGINEER bit(1) /* Do engineering things */
#define L_SUPPLY bit(2) /* supply other units/sects */
#define L_SECURITY bit(3) /* anti-terrorist troops */
#define L_LIGHT bit(4) /* can go on ships */
#define L_MARINE bit(5) /* marine units, good at assaulting */
#define L_RECON bit(6) /* recon units, good at spying */
#define L_RADAR bit(7) /* radar unit */
#define L_ASSAULT bit(8) /* can assault */
#define L_FLAK bit(9) /* flak unit */
#define L_SPY bit(10) /* spy unit - way cool */
#define L_TRAIN bit(11) /* train unit - neato */
#define L_HEAVY bit(12) /* heavy unit - can't go on trains */
/* Work required for building 100% */
#define LND_BLD_WORK(lcm, hcm) (20 + (lcm) + 2 * (hcm))
/* Chance to detect L_SPY unit (percent) */
#define LND_SPY_DETECT_CHANCE(eff) ((110-(eff))/100.0)
#define getland(n, p) ef_read(EF_LAND, (n), (p))
#define putland(n, p) ef_write(EF_LAND, (n), (p))
#define getlandp(n) ((struct lndstr *)ef_ptr(EF_LAND, (n)))
extern struct lchrstr lchr[LND_TYPE_MAX + 2];
enum {
LND_AIROPS_EFF = 50 /* min. efficiency for air ops */
};
enum lnd_stuck {
LND_STUCK_NOT, /* not stuck */
LND_STUCK_NO_RAIL, /* land needs rail */
LND_STUCK_IMPASSABLE /* sector type not marchable */
};
extern float l_att(struct lchrstr *, int);
extern float l_def(struct lchrstr *, int);
extern int l_vul(struct lchrstr *, int);
extern int l_spd(struct lchrstr *, int);
extern int l_frg(struct lchrstr *, int);
extern int l_acc(struct lchrstr *, int);
extern int l_dam(struct lchrstr *, int);
extern int l_aaf(struct lchrstr *, int);
extern float lnd_att(struct lndstr *);
extern float lnd_def(struct lndstr *);
extern int lnd_vul(struct lndstr *);
extern int lnd_spd(struct lndstr *);
extern int lnd_vis(struct lndstr *);
extern int lnd_frg(struct lndstr *);
extern int lnd_acc(struct lndstr *);
extern int lnd_dam(struct lndstr *);
extern int lnd_aaf(struct lndstr *);
/* src/lib/common/cargo.c */
extern void lnd_carrier_change(struct lndstr *, int, int, int);
extern int lnd_first_on_ship(struct shpstr *);
extern int lnd_first_on_land(struct lndstr *);
extern int lnd_next_on_unit(int);
extern int lnd_nxlight(struct lndstr *);
extern int lnd_nland(struct lndstr *);
extern int lnd_fire(struct lndstr *);
extern int lnd_sabo(struct lndstr *, short *);
extern double lnd_fire_range(struct lndstr *);
/* src/lib/subs/lndsub.c */
extern int lnd_sweep(struct emp_qelem *, int, int, natid);
extern int lnd_interdict(struct emp_qelem *, coord, coord, natid);
extern int lnd_may_mar(struct lndstr *, struct lndstr *, char *);
extern void lnd_sel(struct nstr_item *, struct emp_qelem *);
extern struct ulist *lnd_insque(struct lndstr *, struct emp_qelem *);
extern int lnd_check_mines(struct emp_qelem *);
extern enum lnd_stuck lnd_check_mar(struct lndstr *, struct sctstr *);
extern double lnd_pathcost(struct lndstr *, double);
extern int lnd_mobtype(struct lndstr *);
extern double lnd_mobcost(struct lndstr *, struct sctstr *);
extern double attack_val(int, struct lndstr *);
extern double defense_val(struct lndstr *);
extern int lnd_reaction_range(struct lndstr *);
extern void lnd_print(natid, struct ulist *, char *);
extern int lnd_take_casualty(int, struct ulist *, int);
extern void lnd_submil(struct lndstr *, int);
extern void lnd_takemob(struct emp_qelem *, double);
extern int lnd_spyval(struct lndstr *);
extern void intelligence_report(int, struct lndstr *, int, char *);
extern void lnd_mar_stay_behind(struct emp_qelem *, natid);
extern void lnd_put(struct emp_qelem *);
extern void lnd_put_one(struct ulist *);
extern int lnd_hardtarget(struct lndstr *);
extern int lnd_abandon_askyn(struct emp_qelem *);
extern int lnd_mar_one_sector(struct emp_qelem *, int, natid);
extern int lnd_support(natid, natid, coord, coord, int);
extern int lnd_can_attack(struct lndstr *);
extern int lnd_fortify(struct lndstr *lp, int hard_amt);
extern void lnd_set_tech(struct lndstr *, int);
#endif