Two error cases with the map generation in minetn-6:
first one was the lregion placement impossible, caused by randomly
generated mines not going past the map either left or right, and
the stair generation being restricted outside the fixed map.
second was one side of the map being unreachable, because the
mines layout joined to the other side right at the edge of map
behind the small room with the "x" mapchars.
Perennial problem: since Bustling Town consists of a fixed map which was
shorter than the moveable area overlaid onto a cavern fill, sometimes
the cavern fill made spaces above or below the walled edges of the town,
which then got cut off when the town was placed. Since one of the valid
ways to generate a way out of an inaccessible space is to create a door
connecting it to an accessible space, this meant rooms in Minetown,
including shops, could get a second door leading into that tiny space.
And if it was a shop, the shopkeeper could not block exit from the
second door.
This fixes that issue by expanding the map vertically so that it will
overwrite the whole cavern fill in the town area of the map segment
where it might create cut-off spaces like this. (Not the whole area -
since we now have the 'x' mapchar to leave existing terrain in place,
areas adjoining open space where inaccessible pockets won't get
created can retain any existing fill to keep the town from being exactly
the same every time).
The existing system was a confusing mess of competing names (filled,
needfill, prefilled, etc) that had varying semantics, with prefilled
being the worst offender as it meant at least three different things in
various contexts. This commit unifies everything in the code under
"needfill", and everything in Lua under "filled", which defaults to 0
everywhere.
This also removes the second argument to fill_special_room; that
function now just checks the needfill of the room it's passed. As
before, a filled == 2 value is used for a special room to indicate that
the room should set the appropriate level flag, but shouldn't actually
be stocked with anything (for instance, King Arthur's throne room); the
difference is that this now comes directly from the lua script instead
of being manipulated within sp_lev.c.
The prefilled argument had one use case that is occasionally used in the
level files: if the level designer had specified an ordinary region with
prefilled = 1, it would become a room to control monster arrivals on a
level -- monsters that arrive within the bounds of a room are supposed
to stay there.
However, not all of the places where the comments indicated this was
being used were using it correctly; I tested this by letting a few
monsters fall through the knox portal (they're supposed to be
constrained to the entry room) and waiting a hundred turns, then going
through the portal; they were not constrained to the room and had
"wandered" through its walls.
Instead of trying to maintain this special case, I have added an
optional "arrival_room" boolean argument to des.region, which forces it
to create a room for the purposes of constraining monster arrival.
I have gone through and replaced occurrences of prefilled in lua files
with the appropriate filled option (or arrival, as needed). In some
cases, that resulted in questionable regions such as a filled ordinary
area in a non-themeroom (I just dropped the filled=1), or an area which
didn't do anything, not even lighting (which I deleted).
Instead of trying to figure out in core whether to change a minetown
food shop to health food shop for monks, just figure it out in the
minetown level creation script.
Game is playable, and should compile on linux and Windows.
Assumes you have a lua 5.3 library available.
Removes level compiler and associated files.
Replaces special level des-files with lua scripts.
Exposes some NetHack internals to lua:
- des-table with commands to create special levels
- nh-table with NetHack core commands
- nhc-table with some constants
- u-table with some player-specific data (u-struct)
- selection userdata
Adds some rudimentary tests.
Adds new extended command #wizloadlua to run a specific script,
and #wizloaddes to run a specific level-creation script.
nhlib.lua is loaded for every lua script.
Download and untar lua:
mkdir lib
cd lib
curl -R -O http://www.lua.org/ftp/lua-5.3.5.tar.gz
tar zxf lua-5.3.5.tar.gz
Then make nethack normally.
