diff options
Diffstat (limited to 'src/map.cpp')
| -rw-r--r-- | src/map.cpp | 62 |
1 files changed, 61 insertions, 1 deletions
diff --git a/src/map.cpp b/src/map.cpp index 900c1e98c..050299bc9 100644 --- a/src/map.cpp +++ b/src/map.cpp @@ -1046,7 +1046,67 @@ void Map::removeNodeAndUpdate(v3s16 p, bool node_under_sunlight = true; v3s16 toppos = p + v3s16(0,1,0); + + // Node will be replaced with this + u8 replace_material = MATERIAL_AIR; + { + /* + Find out with what material the node will be replaced. + It will be replaced with the mostly seen buildable_to. + */ + + v3s16 dirs[6] = { + v3s16(0,0,1), // back + v3s16(0,1,0), // top + v3s16(1,0,0), // right + v3s16(0,0,-1), // front + v3s16(0,-1,0), // bottom + v3s16(-1,0,0), // left + }; + + core::map<u8, u16> neighbor_rankings; + + for(u32 i=0; i<sizeof(dirs)/sizeof(dirs[0]); i++) + { + try{ + MapNode n2 = getNode(p + dirs[i]); + + if(material_buildable_to(n2.d)) + { + if(neighbor_rankings.find(n2.d) == NULL) + neighbor_rankings[n2.d] = 1; + else + neighbor_rankings[n2.d] + = neighbor_rankings[n2.d] + 1; + } + } + catch(InvalidPositionException &e) + { + } + } + + u16 highest_ranking = 0; + + for(core::map<u8, u16>::Iterator + i = neighbor_rankings.getIterator(); + i.atEnd() == false; i++) + { + u8 m = i.getNode()->getKey(); + u8 c = i.getNode()->getValue(); + if( + c > highest_ranking || + // Prefer something else than air + (c >= highest_ranking && m != MATERIAL_AIR) + + ) + { + replace_material = m; + highest_ranking = c; + } + } + } + /* If there is a node at top and it doesn't have sunlight, there will be no sunlight going down. @@ -1073,7 +1133,7 @@ void Map::removeNodeAndUpdate(v3s16 p, Remove the node */ MapNode n; - n.d = MATERIAL_AIR; + n.d = replace_material; n.setLight(0); setNode(p, n); |