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empserver/include/plane.h
Markus Armbruster 64a53c90f0 Cargo lists storing lists of cargo for each carrier 
Persistent game state encodes "who carries what" by storing the
carrier uid in the cargo.  Cargo lists augment that: they store lists
of cargo for each carrier.  They are not persistent.

New unit_cargo_init() to compute the cargo lists from game state.
Call it in ef_init_srv() and at the end of update_main().

New unit_onresize() to resize the cargo list data structure.
Installed as units' struct empfile callback onresize to make them
resize automatically with the unit files.

New unit_carrier_change() to update cargo lists when carriers change
in game state.  Convenience wrappers pln_carrier_change(),
lnd_carrier_change() and nuk_carrier_change().  Call them from
prewrite callbacks to keep cargo lists in sync with game state.

To make that work, unused units must not point to a carrier.  Add new
pln_oninit(), lnd_oninit() and nuk_oninit() take care of newly created
units.  Change lnd_prewrite() and nuk_prewrite() to take dead land
units and nukes off their carrier.  pln_prewrite() did that already.

New unit_cargo_first(), unit_cargo_next() to traverse cargo lists.
Convenience wrappers lnd_first_on_ship(), lnd_first_on_land(),
lnd_next_on_unit(), pln_first_on_ship(), pln_first_on_land(),
pln_next_on_unit() and nuk_on_plane().  The latter is disabled for now
because it clashes with an existing function.
2008-09-08 21:30:39 -04:00

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/*
* Empire - A multi-player, client/server Internet based war game.
* Copyright (C) 1986-2008, Dave Pare, Jeff Bailey, Thomas Ruschak,
* Ken Stevens, Steve McClure
*
* This program 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
* (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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ---
*
* 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.
*
* ---
*
* plane.h: Definitions for planes and plane types
*
* Known contributors to this file:
* Dave Pare, 1986
* Ken Stevens, 1995
* Steve McClure, 1998
* Markus Armbruster, 2004-2008
*/
#ifndef PLANE_H
#define PLANE_H
#include <time.h>
#include "queue.h"
#include "types.h"
#define PLN_TYPE_MAX 46
#define PLANE_MINEFF 10
struct plnstr {
/* initial part must match struct empobj */
short ef_type;
short pln_uid; /* plane unit id */
unsigned pln_seqno;
time_t pln_timestamp; /* Last time this plane was touched */
natid pln_own; /* owning country */
coord pln_x; /* plane x-y */
coord pln_y;
signed char pln_type; /* index in plchr[] */
signed char pln_effic; /* actually "training" */
signed char pln_mobil; /* plane mobility */
unsigned char pln_off; /* repairs stopped? */
short pln_tech; /* plane's tech level */
char pln_wing; /* like fleet */
coord pln_opx; /* Op sector coords */
coord pln_opy; /* Op sector coords */
short pln_mission; /* mission code */
short pln_radius; /* mission radius */
/* end of part matching struct empobj */
unsigned char pln_range; /* total distance, not radius */
short pln_ship; /* pointer to carrier */
short pln_land; /* pointer to carrier */
signed char pln_harden; /* for missiles */
signed char pln_nuketype; /* type of nuclear armament (if any) */
signed char pln_flags; /* State of the plane */
short pln_access; /* Last tick mob was updated (MOB_ACCESS) */
float pln_theta; /* position in orbital sine wave */
};
#define PLN_LAUNCHED bit(0) /* Flying (satellite: in orbit) */
#define PLN_SYNCHRONOUS bit(1) /* A satellite in geo-synchronous orbit */
#define PLN_AIRBURST bit(2) /* Airburst the nuke we're armed with */
struct plchrstr {
char *pl_name; /* full name of type of plane */
int pl_lcm; /* costs to build */
int pl_hcm;
int pl_cost;
int pl_tech; /* tech needed to build */
int pl_acc; /* bombing accuracy (higher the better) */
int pl_load; /* bomb load, also for carrying cargo */
int pl_att; /* air-air attack/defense strengths */
int pl_def;
int pl_range; /* how many sectors it can fly */
int pl_crew; /* number of mil to crew it */
int pl_fuel; /* fuel consumption */
int pl_stealth; /* how stealthy is it? */
int pl_flags; /* description of capability */
signed char pl_type; /* index in plchr[] */
};
#define P_B bit(0) /* bombing factor only for bombing */
#define P_T bit(1) /* tactical bombing ability */
#define P_F bit(2) /* interceptor/escort */
#define P_C bit(3) /* bombing factor for transport only */
#define P_V bit(4) /* vtol ability */
#define P_M bit(5) /* missile, used only once, can't be intercepted */
#define P_L bit(6) /* light plane, lands on carriers */
#define P_S bit(7) /* Spy ability */
#define P_I bit(8) /* Imaging ability (advanced spying) */
#define P_O bit(9) /* Orbital ability (a satellite) */
#define P_X bit(10) /* Stealth ability */
#define P_N bit(11) /* Nuclear RV interceptor (abm) */
#define P_H bit(12) /* Half stealthy */
#define P_E bit(13) /* extra light */
#define P_K bit(14) /* chopper */
#define P_A bit(15) /* ASW (Anti-Sub Warfare) */
#define P_P bit(16) /* paradropping */
#define P_ESC bit(17) /* escort */
#define P_MINE bit(18) /* can lay mines */
#define P_SWEEP bit(19) /* can sweep mines */
#define P_MAR bit(20) /* missile can hit ships */
#define PM_R bit(0) /* Recon mission */
#define PM_S bit(1) /* Mine-sweeping mission */
/* internal to "fly" module -- really shouldn't be here */
struct plist {
struct emp_qelem queue; /* list of planes */
int bombs; /* bombs carried for bombing mission */
int misc; /* amount of random item being transported */
struct plchrstr *pcp; /* pointer to desc of plane */
struct plnstr plane; /* struct plane */
};
#define getplane(n, p) ef_read(EF_PLANE, (n), (p))
#define putplane(n, p) ef_write(EF_PLANE, (n), (p))
#define getplanep(n) ((struct plnstr *)ef_ptr(EF_PLANE, (n)))
extern struct plchrstr plchr[PLN_TYPE_MAX + 2];
struct shiplist {
short uid;
struct shiplist *next;
};
/* Work required for building 100% */
#define PLN_BLD_WORK(lcm, hcm) (20 + (lcm) + 2 * (hcm))
extern int pl_att(struct plchrstr *, int);
extern int pl_def(struct plchrstr *, int);
extern int pl_acc(struct plchrstr *, int);
extern int pl_range(struct plchrstr *, int);
extern int pl_load(struct plchrstr *, int);
extern int pln_att(struct plnstr *);
extern int pln_def(struct plnstr *);
extern int pln_acc(struct plnstr *);
extern int pln_range_max(struct plnstr *);
extern int pln_load(struct plnstr *);
/* src/lib/common/cargo.c */
extern void pln_carrier_change(struct plnstr *, int, int, int);
extern int pln_first_on_ship(struct shpstr *);
extern int pln_first_on_land(struct lndstr *);
extern int pln_next_on_unit(int);
/* src/lib/subs/aircombat.c */
extern void ac_combat_headers(natid, natid);
extern void ac_airtoair(struct emp_qelem *, struct emp_qelem *);
extern int ac_flak_dam(int, int, int);
extern void ac_encounter(struct emp_qelem *, struct emp_qelem *, coord,
coord, char *, int, int);
extern void sam_intercept(struct emp_qelem *, struct emp_qelem *,
natid, natid, coord, coord, int);
/* src/lib/subs/aswplnsubs.c */
extern int on_shiplist(short, struct shiplist *);
extern void add_shiplist(short, struct shiplist **);
extern void free_shiplist(struct shiplist **);
extern void print_shiplist(struct shiplist *);
#endif
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