/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2007, Dave Pare, Jeff Bailey, Thomas Ruschak,
- * Ken Stevens, Steve McClure
+ * Copyright (C) 1986-2021, Dave Pare, Jeff Bailey, Thomas Ruschak,
+ * Ken Stevens, Steve McClure, Markus Armbruster
*
- * This program is free software; you can redistribute it and/or modify
+ * 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 2 of the License, or
+ * 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,
* 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* ---
*
* ---
*
* land.h: Definitions for land units
- *
+ *
* Known contributors to this file:
* Thomas Ruschak, 1992
* Ken Stevens, 1995
* Steve McClure, 1998
+ * Markus Armbruster, 2004-2020
*/
#ifndef LAND_H
#define LAND_H
+#include "file.h"
#include "item.h"
-#include "queue.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 */
- short ef_type;
+ 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 */
- short lnd_uid; /* unit id (land unit) */
coord lnd_x; /* x location in abs coords */
coord lnd_y; /* y location in abs coords */
signed char lnd_type; /* index in lchr[] */
short lnd_mission; /* mission code */
short lnd_radius; /* mission radius */
/* end of part matching struct empobj */
- signed char lnd_flags; /* unit flags (unused) */
- short lnd_ship; /* pointer to transporting ship */
+ int lnd_ship; /* UID of transporting ship, or -1 */
signed char lnd_harden; /* fortification */
short lnd_retreat; /* retreat percentage */
- unsigned char lnd_fuel; /* How much fuel do we have */
- unsigned char lnd_nxlight; /* How many xlight planes on board? */
int lnd_rflags; /* When do I retreat? */
char lnd_rpath[RET_LEN]; /* retreat path */
- unsigned char lnd_rad_max; /* max radius for this unit */
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 */
- short lnd_land; /* pointer to transporting unit */
- unsigned char lnd_nland;
- time_t lnd_access; /* Last time mob was updated (MOB_ACCESS) */
- float lnd_att; /* attack multiplier */
- float lnd_def; /* defense multiplier */
- int lnd_vul; /* vulnerability (0-100) */
- int lnd_spd; /* speed */
- int lnd_vis; /* visibility */
- int lnd_spy; /* Seeing distance */
- int lnd_rad; /* reaction radius */
- int lnd_frg; /* firing range */
- int lnd_acc; /* firing accuracy */
- int lnd_dam; /* # of guns firing */
- int lnd_ammo; /* firing ammu used per shot */
- int lnd_aaf; /* aa fire */
- unsigned char lnd_fuelc; /* fuel capacity */
- unsigned char lnd_fuelu; /* fuel used per 10 mob */
- unsigned char lnd_maxlight; /* maximum number of xlight planes */
- unsigned char lnd_maxland; /* maximum number of units */
- time_t lnd_timestamp; /* Last time this unit was touched */
+ 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 */
- int l_gun; /* how many guns it takes to build (unused) */
- int l_shell; /* #shells it takes to build (unused) */
+ short l_mat[I_MAX+1]; /* materials to build 100% */
+ /* only I_LCM and I_HCM non-zero */
+ int l_bwork; /* work to build 100% */
int l_tech; /* tech required to build */
int l_cost; /* how much it costs to build */
float l_att; /* attack multiplier */
int l_acc; /* firing accuracy */
int l_dam; /* # of guns firing */
int l_ammo; /* firing ammu used per shot */
- int l_aaf; /* aa fire */
- unsigned char l_fuelc; /* fuel capacity */
- unsigned char l_fuelu; /* fuel used per 10 mob */
+ 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[] */
- long l_flags; /* what special things can this unit do */
};
/* 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_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 */
-
-#define LND_ATTDEF(b, t) (((b) * (1.0 + ((sqrt((t)) / 100.0) * 4.0))) \
- > 127 ? 127 : \
- ((b) * (1.0 + ((sqrt((t)) / 100.0) * 4.0))))
-#define LND_SPD(b, t) ((b * (1.0 + ((sqrt(t) / 100.0) * 2.1))) > 127 \
- ? 127 : (b * (1.0 + ((sqrt(t) / 100.0) * 2.1))))
-#define LND_VUL(b, t) ((b * (1.0 - ((sqrt(t) / 100.0) * 1.1))) < 0 \
- ? 0 : (b * (1.0 - ((sqrt(t) / 100.0) * 1.1))))
-#define LND_VIS(b, t) (b)
-#define LND_SPY(b, t) (b)
-#define LND_RAD(b, t) (b)
-#define LND_FRG(b, t) ((t) ? \
- ((b) * (logx((t), 35.0) < 1.0 ? 1.0 : \
- logx((t), 35.0))) : (b))
-#define LND_DAM(b, t) ((t) ? \
- ((b) * (logx((t), 60.0) < 1.0 ? 1.0 : \
- logx((t), 60.0))) : (b))
-#define LND_ACC(b, t) ((b * (1.0 - ((sqrt(t) / 100.0) * 1.1))) < 0 \
- ? 0 : (b * (1.0 - ((sqrt(t) / 100.0) * 1.1))))
-#define LND_AMM(b, t) (b)
-#define LND_AAF(b, t) ((b * (1.0 + ((sqrt(t) / 100.0) * 3.0))) > 127 \
- ? 127 : (b * (1.0 + ((sqrt(t) / 100.0) * 3.0))))
-#define LND_FC(b, t) (b)
-#define LND_FU(b, t) (b)
-#define LND_XPL(b, t) (b)
-#define LND_MXL(b, t) (b)
-
-/* Work required for building 100% */
-#define LND_BLD_WORK(lcm, hcm) (20 + (lcm) + 2 * (hcm))
+#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 */
/* Chance to detect L_SPY unit (percent) */
#define LND_SPY_DETECT_CHANCE(eff) ((110-(eff))/100.0)
#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];
+#define LCHR_SZ 128
+extern struct lchrstr lchr[LCHR_SZ];
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 void lnd_sweep(struct emp_qelem *, int, int, natid);
+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 char *lnd_path(int, struct lndstr *, char *);
extern double attack_val(int, struct lndstr *);
extern double defense_val(struct lndstr *);
-extern void lnd_print(struct ulist *, char *);
-extern void lnd_delete(struct ulist *, char *);
+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 double intelligence_report(int, struct lndstr *, int, char *);
-extern int count_sect_units(struct sctstr *);
-extern void count_units(struct shpstr *);
-extern void lnd_count_units(struct lndstr *);
-extern void lnd_mar(struct emp_qelem *, double *, double *, int *, natid);
+extern void intelligence_report(natid, struct lndstr *, int, char *);
+extern void lnd_mar_stay_behind(struct emp_qelem *, natid);
+extern void lnd_mar_put(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_mar_one_sector(struct emp_qelem *, int, natid, int);
+extern int lnd_abandon_askyn(struct emp_qelem *);
+extern int lnd_mar_dir(struct emp_qelem *, int, natid);
+extern int lnd_mar_gauntlet(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 int lnd_fortify(struct lndstr *lp, int hard_amt);
extern void lnd_set_tech(struct lndstr *, int);
#endif
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