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Lighting: Fix nearly all issues

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The cause of a single light source seemingly being lit without spread
was due to its creation in the +Y mapblock boundary layer during map
generation, which was ignored as the overtop.  This overtop explicitly
needs to be omitted during sunlight propagation, however.  To accomplish
this, Mapgen::calcLighting() was split into separate functions taking
separate parameters.
Additionally, do not diminish light too early during spread.  This fixes the
output inconsistency between Map::updateLighting and Mapgen::calcLighting.
This commit is contained in:
kwolekr 2015-01-04 02:34:33 -05:00
parent 060ae29eaf
commit 7233a1228e
7 changed files with 54 additions and 30 deletions
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3
src/mapgen_singlenode.cpp
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@ -101,8 +101,7 @@ void MapgenSinglenode::makeChunk(BlockMakeData *data)
// Calculate lighting
if (flags & MG_LIGHT)
calcLighting(node_min - v3s16(1, 0, 1) * MAP_BLOCKSIZE,
node_max + v3s16(1, 0, 1) * MAP_BLOCKSIZE);
calcLighting(node_min, node_max);
this->generating = false;
}