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r4336 | helixhorned | 2014-02-16 11:16:06 -0800 (Sun, 16 Feb 2014) | 7 lines

Lunatic: add engine.saveLookupDat() and document, related tweaks.

- Mapster32: before loading LOOKUP.DAT, set palookup[0][239]=239 to
  make an identity map of the base shade table's shade 0
- Rewrite color index remapping case of makepalookup() for clarity

BUILD_LUNATIC.
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r4335 | helixhorned | 2014-02-16 11:16:05 -0800 (Sun, 16 Feb 2014) | 8 lines

In loadlookups(), look for gap of 4 consecutive unused pals for fog pals.

As opposed to the previous way, where the first fog pals was <numlookups>+1,
where <numlookups> is the first byte value of LOOKUP.DAT. This allows to
pack e.g. lookups [1 .. 25] and [30 .. <lastpal>] into LOOKUP.DAT and have fog
pals be generated at pals [26 .. 29] (i.e. the additional lookups don't
shift the fog pals, making user maps depending on these numbers not look as
intended.)
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r4334 | helixhorned | 2014-02-16 11:16:03 -0800 (Sun, 16 Feb 2014) | 4 lines

Factor out common parts of loading LOOKUP.DAT into engine.c:loadlookups().

Also, error if didn't read enough data and account for TITLE and REALMS
swap between basepal number and on-disk order (sigh).
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r4333 | helixhorned | 2014-02-16 11:16:01 -0800 (Sun, 16 Feb 2014) | 7 lines

Lunatic: rewrite shadexfog.create_128_trans to allow creating fewer tables.

It must be a power of two in [2 .. 128]. Rewrite test/sprite_access.con's
liztroop example to account for that.
Also, add function shadexfog.create_trans() which aceepts a function
(r,g,b,R,G,B) -> blended (r,g,b) and rewrite shadexfog.create_additive_trans()
in terms of it.
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r4332 | helixhorned | 2014-02-16 11:15:59 -0800 (Sun, 16 Feb 2014) | 3 lines

Lunatic: in shade table 'remap16' method, allow sparse table, document it.

Add shadexfog.createremap() convenience function.
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