From 86b19f284990304f5c8322040f277138333a3697 Mon Sep 17 00:00:00 2001 From: Paramat Date: Mon, 4 Jun 2018 00:39:10 +0100 Subject: [PATCH] Biome dust placement: Improve comments, re-order some lines --- src/mapgen/mapgen.cpp | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/src/mapgen/mapgen.cpp b/src/mapgen/mapgen.cpp index 6163d17af..dcdaf82c2 100644 --- a/src/mapgen/mapgen.cpp +++ b/src/mapgen/mapgen.cpp @@ -791,6 +791,10 @@ void MapgenBasic::dustTopNodes() if (biome->c_dust == CONTENT_IGNORE) continue; + // Check if mapchunk above has generated, if so, drop dust from 16 nodes + // above current mapchunk top, above decorations that will extend above + // the current mapchunk. If the mapchunk above has not generated, it + // will provide this required dust when it does. u32 vi = vm->m_area.index(x, full_node_max.Y, z); content_t c_full_max = vm->m_data[vi].getContent(); s16 y_start; @@ -819,14 +823,15 @@ void MapgenBasic::dustTopNodes() content_t c = vm->m_data[vi].getContent(); NodeDrawType dtype = ndef->get(c).drawtype; - // Only place on walkable cubic non-liquid nodes - // Dust check needed due to vertical overgeneration + // Only place on cubic, walkable, non-dust nodes. + // Dust check needed due to avoid double layer of dust caused by + // dropping dust from 16 nodes above mapchunk top. if ((dtype == NDT_NORMAL || + dtype == NDT_ALLFACES || dtype == NDT_ALLFACES_OPTIONAL || - dtype == NDT_GLASSLIKE_FRAMED_OPTIONAL || dtype == NDT_GLASSLIKE || dtype == NDT_GLASSLIKE_FRAMED || - dtype == NDT_ALLFACES) && + dtype == NDT_GLASSLIKE_FRAMED_OPTIONAL) && ndef->get(c).walkable && c != biome->c_dust) { VoxelArea::add_y(em, vi, 1); vm->m_data[vi] = MapNode(biome->c_dust);