2 * Empire - A multi-player, client/server Internet based war game.
3 * Copyright (C) 1986-2006, Dave Pare, Jeff Bailey, Thomas Ruschak,
4 * Ken Stevens, Steve McClure
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 * See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
23 * related information and legal notices. It is expected that any future
24 * projects/authors will amend these files as needed.
28 * ship.h: Definitions for things having to do with ships
30 * Known contributors to this file:
32 * Thomas Ruschak, 1992
46 #define SHIP_MINEFF 20
48 /* bit masks for the autonav mode flags */
50 #define AN_AUTONAV bit(2)
51 #define AN_STANDBY bit(3)
52 #define AN_LOADING bit(4)
53 #define AN_SCUTTLE bit(5) /* Auto-scuttle of trade ships */
55 /* TMAX is the number of cargo holds a ship use in the autonav code. */
60 #define MAXSHPNAMLEN 24
63 /* initial part must match struct genitem */
65 natid shp_own; /* owner's country num */
66 short shp_uid; /* unit id (ship #) */
67 coord shp_x; /* x location in abs coords */
68 coord shp_y; /* y location in abs coords */
69 s_char shp_type; /* index in mchr[] */
70 s_char shp_effic; /* 0% to 100% */
71 s_char shp_mobil; /* mobility units */
72 short shp_tech; /* tech level ship was built at */
73 s_char shp_fleet; /* group membership */
74 coord shp_opx, shp_opy; /* Op sector coords */
75 short shp_mission; /* mission code */
76 short shp_radius; /* mission radius */
77 /* end of part matching struct genitem */
78 u_char shp_nplane; /* number of planes on board */
79 u_char shp_nland; /* number of land units on board */
85 coord shp_destx[2]; /* location for ship destination */
87 i_type shp_tstart[TMAX]; /* what goods to pick up at start point */
88 i_type shp_tend[TMAX]; /* what goods to pick up at end point */
89 short shp_lstart[TMAX]; /* How much do we pick up at the start */
90 short shp_lend[TMAX]; /* How much do we pick up at the end */
91 u_char shp_autonav; /* autonavigation flags */
92 short shp_item[I_MAX+1]; /* amount of items on board */
93 short shp_pstage; /* plague stage */
94 short shp_ptime; /* how many etus remain in this stage */
95 time_t shp_access; /* Last time mob was updated (MOB_ACCESS) */
96 time_t shp_timestamp; /* Last time this ship was touched. */
97 u_char shp_mobquota; /* mobility quota */
98 char shp_path[MAXSHPPATH];
100 char shp_name[MAXSHPNAMLEN]; /* name set with the "name" command */
101 u_char shp_fuel; /* How much fuel do we have */
102 u_char shp_nchoppers; /* How many choppers on board? */
103 u_char shp_nxlight; /* How many xlight planes on board? */
105 coord shp_orig_y; /* Where we were built */
106 natid shp_orig_own; /* Who built us */
107 int shp_rflags; /* When do I retreat? */
108 char shp_rpath[RET_LEN]; /* retreat path */
114 double mobil, mobcost;
115 struct fltelemstr *next;
121 /* defines for the real_q member */
122 #define LEADER_VIRTUAL 0
123 #define LEADER_REAL 1
124 #define LEADER_WRONGSECT 2
128 struct fltelemstr *head;
129 struct fltheadstr *next;
133 short m_item[I_MAX+1]; /* load limit */
134 int m_lcm; /* units of lcm to build */
135 int m_hcm; /* units of hcm to build */
136 int m_armor; /* how well armored it is */
137 int m_speed; /* how fast it can go */
138 int m_visib; /* how well it can be seen */
139 int m_vrnge; /* how well it can see */
140 int m_frnge; /* how far it can fire */
141 int m_glim; /* how many guns it can fire */
142 u_char m_nxlight; /* maximum number of xlight planes */
143 u_char m_nchoppers; /* maximum number of choppers */
144 u_char m_fuelc; /* fuel capacity */
145 u_char m_fuelu; /* fuel used per 10 mob */
146 char *m_name; /* full name of type of ship */
147 int m_tech; /* tech required to build */
148 int m_cost; /* how much it costs to build */
149 long m_flags; /* what special things can this ship do */
150 u_char m_nplanes; /* maximum number of planes this ship holds */
151 u_char m_nland; /* maximum number of units this ship holds */
154 #define M_FOOD bit(0) /* catch that fish! */
155 #define M_TORP bit(1) /* fire torpedoes */
156 #define M_DCH bit(2) /* drop depth charges on subs */
157 #define M_FLY bit(3) /* launch and recover planes */
158 /* M_MSL will be automatically set in init_global() if m_nplanes > 0
159 and M_FLY is not set */
160 #define M_MSL bit(4) /* launch missiles */
161 #define M_OIL bit(5) /* drill for oil */
162 #define M_SONAR bit(6) /* locate submarines */
163 #define M_MINE bit(7) /* drop mines */
164 #define M_SWEEP bit(8) /* clean up the mines */
165 #define M_SUB bit(9) /* a submarine */
167 #define M_LAND bit(11) /* allows full landing ability */
168 #define M_SUBT bit(12) /* allows torping of other subs */
169 #define M_TRADE bit(13) /* is a trade ship */
170 #define M_SEMILAND bit(14) /* can land 1/4 */
171 /* M_XLIGHT will be automatically set in init_global() if m_nxlight > 0 */
172 #define M_XLIGHT bit(15) /* can hold xlight planes */
173 /* M_CHOPPER will be automatically set in init_global() if m_nchoppers > 0 */
174 #define M_CHOPPER bit(16) /* can hold choppers */
175 #define M_OILER bit(17) /* can re-fuel ships */
176 #define M_SUPPLY bit(18) /* Can supply units/sects/ships */
177 #define M_CANAL bit(19) /* Can navigate a canal (BIG CITY) */
178 #define M_ANTIMISSILE bit(20) /* Shoot down missile */
180 #define getship(n, p) \
181 ef_read(EF_SHIP, n, p)
182 #define putship(n, p) \
183 ef_write(EF_SHIP, n, p)
184 #define getshipp(n) \
185 (struct shpstr *) ef_ptr(EF_SHIP, n)
187 extern struct mchrstr mchr[N_MAXSHIPS + 1];
190 struct emp_qelem queue; /* list of ships */
191 struct mchrstr *mcp; /* pointer to desc of ship */
192 struct shpstr ship; /* struct ship */
193 double mobil; /* how much mobility the ship has left */
196 #define SHP_DEF(b, t) (t ? (b * (logx((double)t, (double)40.0) < 1.0 ? 1.0 : \
197 logx((double)t, (double)40.0))) : b)
198 #define SHP_SPD(b, t) (t ? (b * (logx((double)t, (double)35.0) < 1.0 ? 1.0 : \
199 logx((double)t, (double)35.0))) : b)
200 #define SHP_VIS(b, t) (b * (1 - (sqrt((double)t) / 50)))
201 #define SHP_RNG(b, t) (t ? (b * (logx((double)t, (double)35.0) < 1.0 ? 1.0 : \
202 logx((double)t, (double)35.0))) : b)
203 #define SHP_FIR(b, t) (t ? (b * (logx((double)t, (double)60.0) < 1.0 ? 1.0 : \
204 logx((double)t, (double)60.0))) : b)
206 /* Work required for building 100% */
207 #define SHP_BLD_WORK(lcm, hcm) (20 + (lcm) + 2 * (hcm))
209 /* return codes from shp_check_nav */
210 #define CN_NAVIGABLE 0
211 #define CN_LANDLOCKED 1
212 #define CN_CONSTRUCTION 2
216 SHP_AIROPS_EFF = 50, /* min. efficiency for air ops */
217 SHP_TORP_SHELLS = 3 /* number of shells used by a torpedo */