/*
* Empire - A multi-player, client/server Internet based war game.
- * Copyright (C) 1986-2005, 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/>.
*
* ---
*
- * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
- * related information and legal notices. It is expected that any future
- * projects/authors will amend these files as needed.
+ * 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.
*
* ---
*
* ship.h: Definitions for things having to do with ships
- *
+ *
* Known contributors to this file:
* Dave Pare
- * Thomas Rushack, 1992
+ * Thomas Ruschak, 1992
* Ken Stevens, 1995
* Steve McClure, 1998
+ * Markus Armbruster, 2004-2020
*/
-#ifndef _SHIP_H_
-#define _SHIP_H_
+#ifndef SHIP_H
+#define SHIP_H
+#include "file.h"
#include "item.h"
-#include "queue.h"
-#include "misc.h"
#include "retreat.h"
+#include "types.h"
-#define N_MAXSHIPS 40
-#define SHIP_MINEFF 20
-
-/* bit masks for the autonav mode flags */
-
-#define AN_AUTONAV bit(2)
-#define AN_STANDBY bit(3)
-#define AN_LOADING bit(4)
-#define AN_SCUTTLE bit(5) /* Auto-scuttle of trade ships */
-
-/* TMAX is the number of cargo holds a ship use in the autonav code. */
-#define TMAX 6
+#define SHIP_MINEFF 20
-
-#define MAXSHPPATH 28
-#define MAXSHPNAMLEN 24
+#define MAXSHPNAMLEN 24
struct shpstr {
- /* initial part must match struct genitem */
- short ef_type;
+ /* initial part must match struct empobj */
+ signed ef_type: 8;
+ unsigned shp_seqno: 12;
+ unsigned shp_generation: 12;
+ int shp_uid; /* unit it (ship #) */
+ time_t shp_timestamp; /* Last time this ship was touched. */
natid shp_own; /* owner's country num */
- short shp_uid; /* unit id (ship #) */
coord shp_x; /* x location in abs coords */
coord shp_y; /* y location in abs coords */
- s_char shp_type; /* index in mchr[] */
- s_char shp_effic; /* 0% to 100% */
- s_char shp_mobil; /* mobility units */
+ signed char shp_type; /* index in mchr[] */
+ signed char shp_effic; /* 0% to 100% */
+ signed char shp_mobil; /* mobility units */
+ unsigned char shp_off; /* repairs stopped? */
short shp_tech; /* tech level ship was built at */
- s_char shp_fleet; /* group membership */
+ char shp_fleet; /* group membership */
coord shp_opx, shp_opy; /* Op sector coords */
short shp_mission; /* mission code */
short shp_radius; /* mission radius */
- /* end of part matching struct genitem */
- u_char shp_nplane; /* number of planes on board */
- u_char shp_nland; /* number of land units on board */
- short shp_armor;
- short shp_speed;
- short shp_visib;
- short shp_frnge;
- short shp_glim;
- coord shp_destx[2]; /* location for ship destination */
- coord shp_desty[2];
- i_type shp_tstart[TMAX]; /* what goods to pick up at start point */
- i_type shp_tend[TMAX]; /* what goods to pick up at end point */
- short shp_lstart[TMAX]; /* How much do we pick up at the start */
- short shp_lend[TMAX]; /* How much do we pick up at the end */
- u_char shp_autonav; /* autonavigation flags */
+ /* end of part matching struct empobj */
short shp_item[I_MAX+1]; /* amount of items on board */
short shp_pstage; /* plague stage */
- short shp_ptime; /* how many etus remain in this stage */
- time_t shp_access; /* Last time mob was updated (MOB_ACCESS) */
- time_t shp_timestamp; /* Last time this ship was touched. */
- u_char shp_mobquota; /* mobility quota */
- char shp_path[MAXSHPPATH];
- short shp_follow;
+ short shp_ptime; /* how many ETUs remain in this stage */
+ short shp_access; /* Last tick mob was updated (MOB_ACCESS) */
char shp_name[MAXSHPNAMLEN]; /* name set with the "name" command */
- u_char shp_fuel; /* How much fuel do we have */
- u_char shp_nchoppers; /* How many choppers on board? */
- u_char shp_nxlight; /* How many xlight planes on board? */
coord shp_orig_x;
coord shp_orig_y; /* Where we were built */
natid shp_orig_own; /* Who built us */
char shp_rpath[RET_LEN]; /* retreat path */
};
-struct fltelemstr {
- int num;
- int own;
- double mobil, mobcost;
- struct fltelemstr *next;
-};
-
-struct fltheadstr {
- int leader;
- s_char real_q;
-/* defines for the real_q member */
-#define LEADER_VIRTUAL 0
-#define LEADER_REAL 1
-#define LEADER_WRONGSECT 2
- coord x, y;
- natid own;
- unsigned maxmoves;
- struct fltelemstr *head;
- struct fltheadstr *next;
-};
-
struct mchrstr {
- u_short m_item[I_MAX+1]; /* load limit */
- int m_lcm; /* units of lcm to build */
- int m_hcm; /* units of hcm to build */
+ short m_item[I_MAX+1]; /* load limit */
int m_armor; /* how well armored it is */
int m_speed; /* how fast it can go */
int m_visib; /* how well it can be seen */
int m_vrnge; /* how well it can see */
int m_frnge; /* how far it can fire */
int m_glim; /* how many guns it can fire */
- u_char m_nxlight; /* maximum number of xlight planes */
- u_char m_nchoppers; /* maximum number of choppers */
- u_char m_fuelc; /* fuel capacity */
- u_char m_fuelu; /* fuel used per 10 mob */
+ unsigned char m_nxlight; /* maximum number of xlight planes */
+ unsigned char m_nchoppers; /* maximum number of choppers */
char *m_name; /* full name of type of ship */
+ short m_mat[I_MAX+1]; /* materials to build 100% */
+ /* only I_LCM and I_HCM non-zero */
+ int m_bwork; /* work to build 100% */
int m_tech; /* tech required to build */
int m_cost; /* how much it costs to build */
- long m_flags; /* what special things can this ship do */
- u_char m_nplanes; /* maximum number of planes this ship holds */
- u_char m_nland; /* maximum number of units this ship holds */
+ int m_flags; /* what special things can this ship do */
+ unsigned char m_nplanes; /* maximum number of planes this ship holds */
+ unsigned char m_nland; /* maximum number of units this ship holds */
+ signed char m_type; /* index in mchr[] */
};
#define M_FOOD bit(0) /* catch that fish! */
#define M_TORP bit(1) /* fire torpedoes */
#define M_DCH bit(2) /* drop depth charges on subs */
#define M_FLY bit(3) /* launch and recover planes */
-/* M_MSL will be automatically set in init_global() if m_nplanes > 0
- and M_FLY is not set */
#define M_MSL bit(4) /* launch missiles */
#define M_OIL bit(5) /* drill for oil */
#define M_SONAR bit(6) /* locate submarines */
#define M_MINE bit(7) /* drop mines */
#define M_SWEEP bit(8) /* clean up the mines */
#define M_SUB bit(9) /* a submarine */
-#define M_SPY bit(10) /* gather intelligence info */
+/* unused bit(10) */
#define M_LAND bit(11) /* allows full landing ability */
#define M_SUBT bit(12) /* allows torping of other subs */
#define M_TRADE bit(13) /* is a trade ship */
#define M_SEMILAND bit(14) /* can land 1/4 */
-/* M_XLIGHT will be automatically set in init_global() if m_nxlight > 0 */
-#define M_XLIGHT bit(15) /* can hold xlight planes */
-/* M_CHOPPER will be automatically set in init_global() if m_nchoppers > 0 */
-#define M_CHOPPER bit(16) /* can hold choppers */
-#define M_OILER bit(17) /* can re-fuel ships */
+/* unused bit(15) */
+/* unused bit(16) */
+/* unused bit(17) */
#define M_SUPPLY bit(18) /* Can supply units/sects/ships */
-/* M_UNIT will be automatically set in init_global() if m_nland > 0 */
-#define M_UNIT bit(19) /* Can carry units */
-#define M_ANTIMISSILE bit(20) /* Shoot down missile */
-
-#define getship(n, p) \
- ef_read(EF_SHIP, n, p)
-#define putship(n, p) \
- ef_write(EF_SHIP, n, p)
-#define getshipp(n) \
- (struct shpstr *) ef_ptr(EF_SHIP, n)
-
-extern struct mchrstr mchr[N_MAXSHIPS + 1];
-extern int shp_maxno;
-
-struct mlist {
- struct emp_qelem queue; /* list of ships */
- struct mchrstr *mcp; /* pointer to desc of ship */
- struct shpstr ship; /* struct ship */
- double mobil; /* how much mobility the ship has left */
-};
+#define M_CANAL bit(19) /* Can navigate a canal (BIG CITY) */
+#define M_ANTIMISSILE bit(20) /* Shoot down missile */
-#define SHP_DEF(b, t) (t ? (b * (logx((double)t, (double)40.0) < 1.0 ? 1.0 : \
- logx((double)t, (double)40.0))) : b)
-#define SHP_SPD(b, t) (t ? (b * (logx((double)t, (double)35.0) < 1.0 ? 1.0 : \
- logx((double)t, (double)35.0))) : b)
-#define SHP_VIS(b, t) (b * (1 - (sqrt((double)t) / 50)))
-#define SHP_RNG(b, t) (t ? (b * (logx((double)t, (double)35.0) < 1.0 ? 1.0 : \
- logx((double)t, (double)35.0))) : b)
-#define SHP_FIR(b, t) (t ? (b * (logx((double)t, (double)60.0) < 1.0 ? 1.0 : \
- logx((double)t, (double)60.0))) : b)
-
-/* Work required for building 100% */
-#define SHP_BLD_WORK(lcm, hcm) (20 + (lcm) + 2 * (hcm))
-
- /* return codes from shp_check_nav */
-#define CN_NAVIGABLE 0
-#define CN_LANDLOCKED 1
-#define CN_CONSTRUCTION 2
-#define CN_ERROR -1
+#define getship(n, p) ef_read(EF_SHIP, (n), (p))
+#define putship(n, p) ef_write(EF_SHIP, (n), (p))
+#define getshipp(n) ((struct shpstr *)ef_ptr(EF_SHIP, (n)))
+
+#define MCHR_SZ 128
+extern struct mchrstr mchr[MCHR_SZ];
enum {
SHP_AIROPS_EFF = 50, /* min. efficiency for air ops */
SHP_TORP_SHELLS = 3 /* number of shells used by a torpedo */
};
-#endif /* _SHIP_H_ */
+/* Whether and why a ship is stuck in a sector */
+enum shp_stuck {
+ SHP_STUCK_NOT, /* not stuck */
+ SHP_STUCK_CONSTRUCTION, /* sector not efficient enough */
+ SHP_STUCK_CANAL, /* ship lacks M_CANAL */
+ SHP_STUCK_IMPASSABLE /* sector type not navigable */
+};
+
+extern int m_armor(struct mchrstr *, int);
+extern int m_speed(struct mchrstr *, int);
+extern int m_visib(struct mchrstr *, int);
+extern int m_frnge(struct mchrstr *, int);
+extern int m_glim(struct mchrstr *, int);
+extern int shp_armor(struct shpstr *);
+extern int shp_speed(struct shpstr *);
+extern int shp_visib(struct shpstr *);
+extern int shp_frnge(struct shpstr *);
+extern int shp_glim(struct shpstr *);
+
+extern int shp_nplane(struct shpstr *, int *, int *, int *);
+extern int shp_nland(struct shpstr *);
+
+extern int shp_dchrg(struct shpstr *);
+extern int shp_fire(struct shpstr *);
+extern int shp_torp(struct shpstr *, int);
+extern double shp_fire_range(struct shpstr *);
+extern int shp_usable_guns(struct shpstr *);
+extern double shp_torp_hitchance(struct shpstr *, int);
+
+/* src/lib/subs/shpsub.c */
+extern int shp_may_nav(struct shpstr *, struct shpstr *, char *);
+extern void shp_sel(struct nstr_item *, struct emp_qelem *);
+extern struct ulist *shp_insque(struct shpstr *, struct emp_qelem *);
+extern void shp_nav_stay_behind(struct emp_qelem *, natid);
+extern void shp_nav_put(struct emp_qelem *, natid);
+extern int shp_sweep(struct emp_qelem *, int, int, natid);
+extern enum shp_stuck shp_check_nav(struct shpstr *, struct sctstr *);
+extern int sect_has_dock(struct sctstr *);
+extern int shp_hardtarget(struct shpstr *);
+extern int shp_nav_dir(struct emp_qelem *, int, natid);
+extern int shp_nav_gauntlet(struct emp_qelem *, int, natid);
+extern int shp_missile_defense(coord, coord, natid, int);
+extern void shp_missdef(struct shpstr *, natid);
+extern double shp_mobcost(struct shpstr *);
+extern void shp_set_tech(struct shpstr *, int);
+
+#endif
projects / empserver / blobdiff