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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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4
src/mapgen.h
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@ -156,7 +156,11 @@ public:
void updateLiquid(UniqueQueue<v3s16> *trans_liquid, v3s16 nmin, v3s16 nmax);
void setLighting(v3s16 nmin, v3s16 nmax, u8 light);
void lightSpread(VoxelArea &a, v3s16 p, u8 light);
void calcLighting(v3s16 nmin, v3s16 nmax);
void propagateSunlight(v3s16 nmin, v3s16 nmax);
void spreadLight(v3s16 nmin, v3s16 nmax);
void calcLightingOld(v3s16 nmin, v3s16 nmax);
virtual void makeChunk(BlockMakeData *data) {}