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more invocation handling

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While testing the wall crumbling message TODO yesterday, I saw a
case where the top line of the moat around the invocation area was
truncated even through there were 3 lines of map (on a cavernous
level rather than maze one) above where it cut off.  This improves
things although it may not be 100% correct.

Picking the invocation position is unchanged, so there should be no
risk of it now being positioned too close to the map edge.  It's
possible that it has been farther away from the edge than necessary
though; if so, it will still be.
This commit is contained in:
PatR
2024-01-09 12:07:24 -08:00
parent 0333495b8b
commit 3a8971cc17
2 changed files with 30 additions and 20 deletions
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25
src/mkmaze.c
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@@ -1,4 +1,4 @@
/* NetHack 3.7 mkmaze.c $NHDT-Date: 1648064596 2022/03/23 19:43:16 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.133 $ */
/* NetHack 3.7 mkmaze.c $NHDT-Date: 1704830842 2024/01/09 20:07:22 $ $NHDT-Branch: NetHack-3.7 $:$NHDT-Revision: 1.158 $ */
/* Copyright (c) Stichting Mathematisch Centrum, Amsterdam, 1985. */
/*-Copyright (c) Pasi Kallinen, 2018. */
/* NetHack may be freely redistributed. See license for details. */
@@ -1013,18 +1013,21 @@ pick_vibrasquare_location(void)
coordxy x, y;
stairway *stway;
int trycnt = 0;
/* these are also defined in mklev.c and they may not be appropriate
for mazes with corridors wider than 1 or for cavernous levels */
#define x_maze_min 2
#define y_maze_min 2
/*
* Pick a position where the stairs down to Moloch's Sanctum
* level will ultimately be created. At that time, an area
* will be altered: walls removed, moat and traps generated,
* boulders destroyed. The position picked here must ensure
* that that invocation area won't extend off the map.
*
* We actually allow up to 2 squares around the usual edge of
* the area to get truncated; see mkinvokearea(mklev.c).
*/
/*
* Pick a position where the stairs down to Moloch's Sanctum
* level will ultimately be created. At that time, an area
* will be altered: walls removed, moat and traps generated,
* boulders destroyed. The position picked here must ensure
* that that invocation area won't extend off the map.
*
* We actually allow up to 2 squares around the usual edge of
* the area to get truncated; see mkinvokearea(mklev.c).
*/
#define INVPOS_X_MARGIN (6 - 2)
#define INVPOS_Y_MARGIN (5 - 2)
#define INVPOS_DISTANCE 11