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make a distinction between rock and unexplored area

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This adds a pair of new glyphs: GLYPH_UNEXPLORED and GLYPH_NOTHING

GLYPH_UNEXPLORED is meant to be the glyph for areas of the map that
haven't been explored yet.

GLYPH_NOTHING is a glyph that represents that which cannot be seen,
for instance the dark part of a room when the dark_room option is
not set.  Since the symbol for stone can now be overridden to
a players choice, it no longer made sense using S_stone for the
dark areas of the room with dark_room off. This allows the same
intended result even if S_stone symbol is mapped to something visible.

GLYPH_UNEXPLORED is what areas of the map get initialized to now
instead of STONE.

This adds a pair of new symbols: S_unexplored and S_nothing.

S_nothing is meant to be left as an unseen character (space) in
order to achieve the intended effect on the display.

S_unexplored is the symbol that is mapped to GLYPH_UNEXPLORED, and
is a distinct symbol from S_stone, even if they are set to the same
character. They don't have to be set to the same character.

Hopefully there are minimal bugs, but it is a deviation from a
fairly long-standing approach so there could be some unintended
glitches that will need repair.
This commit is contained in:
nhmall
2020-02-08 00:48:03 -05:00
parent 84daf75981
commit d37fa196b2
19 changed files with 248 additions and 126 deletions
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10
src/mapglyph.c
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@@ -102,7 +102,15 @@ unsigned mgflags;
* Warning: For speed, this makes an assumption on the order of
* offsets. The order is set in display.h.
*/
if ((offset = (glyph - GLYPH_STATUE_OFF)) >= 0) { /* a statue */
if ((offset = (glyph - GLYPH_NOTHING_OFF)) >= 0) {
idx = SYM_NOTHING + SYM_OFF_X;
color = NO_COLOR;
special |= MG_NOTHING;
} else if ((offset = (glyph - GLYPH_UNEXPLORED_OFF)) >= 0) {
idx = SYM_UNEXPLORED + SYM_OFF_X;
color = NO_COLOR;
special |= MG_UNEXPL;
} else if ((offset = (glyph - GLYPH_STATUE_OFF)) >= 0) { /* a statue */
idx = mons[offset].mlet + SYM_OFF_M;
if (has_rogue_color)
color = CLR_RED;