169 lines
5.3 KiB
C
169 lines
5.3 KiB
C
/*
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* Empire - A multi-player, client/server Internet based war game.
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* Copyright (C) 1986-2000, Dave Pare, Jeff Bailey, Thomas Ruschak,
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* Ken Stevens, Steve McClure
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* ---
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*
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* See the "LEGAL", "LICENSE", "CREDITS" and "README" files for all the
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* related information and legal notices. It is expected that any future
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* projects/authors will amend these files as needed.
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*
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* ---
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*
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* nsc.h: Definitions for Empire conditionals
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*
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* Known contributors to this file:
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* Dave Pare, 1989
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*/
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#ifndef _NSC_H_
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#define _NSC_H_
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#include "xy.h"
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#define NS_LSIZE 128
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#define NS_NCOND 16
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enum { /* masks for struct nscstr member oper */
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NSC_OPMASK = 0x0ff, /* operator */
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NSC_ISNUM1 = 0x100, /* is left operand a number? */
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NSC_ISNUM2 = 0x200 /* is right operand a number? */
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};
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struct nscstr {
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long fld1; /* first commodity or number */
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long fld2; /* second commodity or number */
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int oper; /* required relationship operator */
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};
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struct nstr_sect {
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coord x, y; /* current x-y */
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coord dx, dy; /* accumlated x,y travel */
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int id; /* return value of sctoff */
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int type; /* type of query */
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int curdist; /* dist query: current range */
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struct range range; /* area of coverage */
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int dist; /* dist query: range */
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coord cx, cy; /* dist query: center x-y */
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int (*read)(int type, int id, caddr_t ptr); /* read function */
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int ncond; /* # of selection conditions */
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struct nscstr cond[NS_NCOND]; /* selection conditions */
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};
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struct nstr_item {
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int cur; /* current item */
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int sel; /* selection type */
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int type; /* item type being selected */
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int curdist; /* if NS_DIST, current item's dist */
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struct range range; /* NS_AREA/NS_DIST: range selector */
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int dist; /* NS_DIST: distance selector */
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coord cx, cy; /* NS_DIST: center x-y, NS_XY: xy */
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int group; /* NS_GROUP: fleet/wing match */
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int size; /* NS_LIST: size of list */
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int index; /* NS_LIST: index */
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int list[NS_LSIZE]; /* NS_LIST: item list */
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int (*read)(int type, int id, caddr_t ptr); /* read function */
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int flags; /* EFF_ flags */
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int ncond; /* # of selection conditions */
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struct nscstr cond[NS_NCOND]; /* selection conditions */
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};
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#define NS_UNDEF 0
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#define NS_LIST 1
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#define NS_DIST 2
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#define NS_AREA 3
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#define NS_ALL 4
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#define NS_XY 5
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#define NS_GROUP 6
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/*
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* codes looks like this:
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* D: is access restricted to deity?
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* T: type of member addressed by offset, if category NSC_OFF
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* C: category of value
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* V: value
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*
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* 2 2 1 1 1
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* 2 0 8 6 2 8 4 0
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* xxx xxxx xxxx xxxx xxxx xxxx
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* DTT TTCC VVVV VVVV VVVV VVVV
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*/
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/*
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* categories
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*/
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#define NSC_VAL (0) /* value is plain number */
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#define NSC_VAR (1<<16) /* value is a vtype */
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#define NSC_OFF (2<<16) /* value is an offset */
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#define NSC_CMASK (3<<16)
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/*
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* how to interpret "offset" fields
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*/
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#define NSC_CHAR (1<<18) /* offset of s_char member */
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#define NSC_UCHAR (2<<18) /* offset of unsigned char member */
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#define NSC_SHORT (3<<18) /* offset of short */
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#define NSC_USHORT (4<<18) /* offset of unsigned short member */
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#define NSC_INT (5<<18) /* offset of int member */
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#define NSC_LONG (6<<18) /* offset of long member */
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#define NSC_XCOORD (7<<18) /* offset of coord that needs x conversion */
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#define NSC_YCOORD (8<<18) /* offset of coord that needs y conversion */
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#define NSC_FLOAT (9<<18) /* offset of float member */
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#define NSC_CHARP (10<<18) /* offset of char *member */
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#define NSC_TIME (11<<18) /* offset of time_t member */
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#define NSC_TMASK (15<<18)
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#define NSC_NATID NSC_UCHAR /* must match natid */
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#define NSC_MASK (0xffff0000)
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#define NSC_DEITY (1<<22)
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struct castr {
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long ca_code; /* encoded form */
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s_char *ca_name; /* name used for matches */
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u_short ca_len; /* Used for arrays */
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};
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/* variables using the above */
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extern struct castr var_ca[];
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extern struct castr sect_ca[];
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extern struct castr ship_ca[];
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extern struct castr plane_ca[];
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extern struct castr land_ca[];
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extern struct castr nuke_ca[];
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extern struct castr news_ca[];
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extern struct castr nat_ca[];
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extern struct castr treaty_ca[];
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extern struct castr trade_ca[];
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extern struct castr loan_ca[];
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extern struct castr genitem_ca[];
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extern struct castr lost_ca[];
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extern struct castr commodity_ca[];
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/* src/lib/subs/nstr.c */
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extern s_char *nstr_comp(struct nscstr *, int *, int, s_char *);
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extern int encode(register s_char *, long *, int);
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extern s_char *decodep(long, void *);
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extern int decode(natid, long, void *, int);
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extern int nstr_exec(struct nscstr *, register int, void *, int);
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#endif /* _NSC_H_ */
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