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/* SCCS Id: @(#)region.h 3.4 2002/10/15 */
/* Copyright (c) 1996 by Jean-Christophe Collet */
/* NetHack may be freely redistributed. See license for details. */
#ifndef REGION_H
#define REGION_H
/* generic callback function */
typedef boolean FDECL((*callback_proc), (genericptr_t, genericptr_t));
/*
* Overload the old player_inside field with two values, coded in such
* a way as to retain compatibility with 3.4.0 save and bones files;
* this relies on the fact that nethack's `boolean' is really stored
* in a `char' (or bigger type) rather than in a single bit.
*
* 3.4.1 save and bones files will be correct.
* 3.4.0 save files restored under 3.4.1 will be correct.
* 3.4.0 bones files used with 3.4.1 will continue to have the minor
* 3.4.0 bug of falsely claiming that the current game's hero is
* responsible for the dead former hero's stinking clouds.
*/
#define REG_HERO_INSIDE 1
#define REG_NOT_HEROS 2
#define hero_inside(r) ((unsigned)(r)->player_flags & REG_HERO_INSIDE)
#define heros_fault(r) (!((unsigned)(r)->player_flags & REG_NOT_HEROS))
#define set_hero_inside(r) ((r)->player_flags |= REG_HERO_INSIDE)
#define clear_hero_inside(r) ((r)->player_flags &= ~REG_HERO_INSIDE)
#define set_heros_fault(r) ((r)->player_flags &= ~REG_NOT_HEROS)
#define clear_heros_fault(r) ((r)->player_flags |= REG_NOT_HEROS)
typedef struct {
NhRect bounding_box; /* Bounding box of the region */
NhRect *rects; /* Rectangles composing the region */
short nrects; /* Number of rectangles */
boolean attach_2_u; /* Region attached to player ? */
unsigned int attach_2_m; /* Region attached to monster ? */
/*struct obj *attach_2_o;*/ /* Region attached to object ? UNUSED YET */
const char* enter_msg; /* Message when entering */
const char* leave_msg; /* Message when leaving */
short ttl; /* Time to live. -1 is forever */
short expire_f; /* Function to call when region's ttl expire */
short can_enter_f; /* Function to call to check wether the player
can, or can not, enter the region */
short enter_f; /* Function to call when the player enters*/
short can_leave_f; /* Function to call to check wether the player
can, or can not, leave the region */
short leave_f; /* Function to call when the player leaves */
short inside_f; /* Function to call every turn if player's
inside */
boolean player_flags; /* (see above) */
unsigned int* monsters; /* Monsters currently inside this region */
short n_monst; /* Number of monsters inside this region */
short max_monst; /* Maximum number of monsters that can be
listed without having to grow the array */
#define MONST_INC 5
/* Should probably do the same thing about objects */
boolean visible; /* Is the region visible ? */
int glyph; /* Which glyph to use if visible */
genericptr_t arg; /* Optional user argument (Ex: strength of
force field, damage of a fire zone, ...*/
} NhRegion;
#endif /* REGION_H */
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