set_tile_type frees tileset memory not in use for the current tile
type (paletted or full color).
stretch_tile and free_tile support resizing tiles at run time.
Some BIOSes allow calling the window function directly, bypassing the
logic that distinguishes this call from other BIOS calls. Should be
faster on some systems.
This was not previously done because the palette was not correctly set
up, and QEMU gave incorrect colors. The palette setup function now
falls back to the standard BIOS function if the VESA BIOS function
fails, which resolves the issue with QEMU. The mode selection logic now
favors 8 bit color if the tile set is compatible.
Using 8 bit mode means fewer writes to memory and fewer uses of the
BIOS window function.
Try a lot harder to keep terrain/level flags in a sane state. They're
overloaded so it's not simple.
Creating a fountain or sink incremented the corresponding counter (for
controlling ambient sounds) but removing one by wishing for something
else in its place didn't decrement.
Allow wish for "disturbed grave" to create a grave with the 'disturbed'
flag set, similar to existing "magic fountain" and 'blessedftn' flag.
(I didn't add "looted throne", "looted tree", and several other things
that use the 'looted' overload of 'rm.flags'.)
Automate block_point (tree, cloud, secret corridor, or secret door in
open doorway) and add unblock_point (use Pass_wall to move into wall
or tree or stone, or just walk onto a cloud, then make iron bars or
almost any other wishable terrain to replace the blocking feature).
Make long worms grow more slowly (although that didn't seem to make
as much a difference as expected) and limit the amount of HP they
acculate if they shrink and then re-expand. Shrinking doesn't take
away max HP but growing used to always add to max. Now it won't add
to max HP unless the number of segments is at that worm's peak, so
shrinking will inhibit the exhorbitant HP expansion that idle worms
have had.
Mostly removing 'register', but also clear stale wgrowtime[] values
at the time they become obsolete instead of waiting for initworm()
to replace them when eventually re-used.
When disclosing conduct at end of game (but not during except in
wizard mode), display achievements too. They're also included in
dumplog if it's enabled. Previously they were only output as an
extra field in xlogfile.
This turned out to be a lot more work than I anticipated, but it is
definitely simpler (other than having #wizmakemap take achievements
away if you replace the level that contains the 'prize', which wasn't
handled before).
I cheated and made Mine's End into a no-bones level because the new
flagging scheme for luckstone, bag, and amulet can't carry over from
one game to another. It probably should have been no-bones all along.
Sokoban didn't have this issue because it's already no-bones.
Existing save files are invalidated.
When loading a Lua script, modify it with a comment containing the
file name (or DLB module name) so that error reporting doesn't just
show the first 60 bytes of the script. Also, don't assume that it's
possible to load an entire script in one fread(). Unfortunately
that got way out of hand and the result isn't pretty. But something
of the sort is necessary. (Reading the script into one string first
and then applying modifications while copying it into a second one
would probably be a lot cleaner than mixing the two operations.)
If a script starts with a comment or a blank line, the insertion of
the file name comment won't disturb the line number reported in an
error message. But if the script starts out with code on its first
line, error reports will be off by one for the line number. Showing
the file name is more useful than keeping that number accurate.
