diff options
Diffstat (limited to 'src/mapgen_flat.cpp')
| -rw-r--r-- | src/mapgen_flat.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/mapgen_flat.cpp b/src/mapgen_flat.cpp index 0d071411d..d654a772e 100644 --- a/src/mapgen_flat.cpp +++ b/src/mapgen_flat.cpp @@ -573,6 +573,12 @@ void MapgenFlat::generateCaves(s16 max_stone_y) for (s16 y = node_max.Y + 1; y >= node_min.Y - 1; y--, index3d -= ystride, vm->m_area.add_y(em, vi, -1)) { + // Don't excavate the overgenerated stone at node_max.Y + 1, + // this creates a 'roof' over the tunnel, preventing light in + // tunnels at mapchunk borders when generating mapchunks upwards. + if (y > node_max.Y) + continue; + content_t c = vm->m_data[vi].getContent(); if (c == CONTENT_AIR || c == biome->c_water_top || c == biome->c_water) { |