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/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef GLK_ALAN2_MAIN
#define GLK_ALAN2_MAIN
/* Header file for main unit of ARUN Alan System interpreter */
#include "common/file.h"
#include "glk/alan2/types.h"
#include "glk/jumps.h"
namespace Glk {
namespace Alan2 {
/* DATA */
#define MEMORYSIZE 1000L
extern Aaddr memTop; // Top of memory
extern int conjWord; // First conjunction in dictionary
/* The Amachine memory */
extern Aword *memory;
extern AcdHdr *header;
/* Amachine variables */
extern CurVars cur;
/* Amachine data structures */
extern WrdElem *dict; /* Dictionary pointer */
extern ActElem *acts; /* Actor table pointer */
extern LocElem *locs; /* Location table pointer */
extern VrbElem *vrbs; /* Verb table pointer */
extern StxElem *stxs; /* Syntax table pointer */
extern ObjElem *objs; /* Object table pointer */
extern CntElem *cnts; /* Container table pointer */
extern RulElem *ruls; /* Rule table pointer */
extern EvtElem *evts; /* Event table pointer */
extern MsgElem *msgs; /* Message table pointer */
extern Aword *scores; /* Score table pointer */
extern Aword *freq; /* Cumulated frequencies */
extern int dictsize; /* Number of entries in dictionary */
/* The text and message file */
extern Common::File *txtfil;
extern Common::WriteStream *logfil;
extern Common::SeekableReadStream *codfil;
#undef ftell
#undef fgetc
#undef getc
#undef fseek
#undef fclose
#define ftell(FP) FP->pos()
#define fgetc(FP) (FP->pos() >= FP->size()) ? EOD : FP->readByte()
#define getc(FP) (FP->pos() >= FP->size()) ? EOD : FP->readByte()
#define fseek(FP, OFS, WHENCE) FP->seek(OFS, WHENCE)
#define fclose(FP) delete FP
/* File names */
extern const char *advnam;
/* Screen formatting info */
extern int col, lin;
extern Boolean verbose, errflg, trcflg, dbgflg, stpflg, logflg, statusflg;
extern Boolean fail;
extern Boolean anyOutput;
extern Boolean needsp;
#define endOfTable(x) eot((Aword *) x)
extern void *allocate(unsigned long len);
extern void terminate(CONTEXT, int code);
extern void usage(void);
extern void error(CONTEXT, MsgKind msg);
extern void syserr(const char *msg);
extern void statusline(void);
extern void output(const char string[]);
extern void prmsg(MsgKind msg);
extern void para(void);
extern void newline(void);
extern Boolean checklim(Aword cnt, Aword obj);
extern Boolean possible(void);
extern Boolean exitto(int to, int from);
extern void action(CONTEXT, ParamElem *plst);
extern void go(CONTEXT, int dir);
extern Boolean eot(Aword *adr);
extern Boolean isObj(Aword x);
extern Boolean isCnt(Aword x);
extern Boolean isAct(Aword x);
extern Boolean isLoc(Aword x);
extern Boolean isLit(Aword x);
extern Boolean isNum(Aword x);
extern Boolean isStr(Aword x);
/* Run the game! */
extern void run(void);
} // End of namespace Alan2
} // End of namespace Glk
#endif
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