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Add minetest.get_mapgen_edges (#12999)

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Jude Melton-Houghton 2022-12-03 10:40:46 -05:00 • committed by GitHub
parent e84d259ec7
commit b3ffc4b327
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6 changed files with 103 additions and 17 deletions
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31
src/mapgen/mapgen.cpp
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@ -1063,9 +1063,20 @@ void MapgenParams::writeParams(Settings *settings) const
}
// Calculate exact edges of the outermost mapchunks that are within the
// set 'mapgen_limit'.
void MapgenParams::calcMapgenEdges()
s32 MapgenParams::getSpawnRangeMax()
{
if (!m_mapgen_edges_calculated) {
std::pair<s16, s16> edges = get_mapgen_edges(mapgen_limit, chunksize);
mapgen_edge_min = edges.first;
mapgen_edge_max = edges.second;
m_mapgen_edges_calculated = true;
}
return MYMIN(-mapgen_edge_min, mapgen_edge_max);
}
std::pair<s16, s16> get_mapgen_edges(s16 mapgen_limit, s16 chunksize)
{
// Central chunk offset, in blocks
s16 ccoff_b = -chunksize / 2;
@ -1089,17 +1100,5 @@ void MapgenParams::calcMapgenEdges()
s16 numcmin = MYMAX((ccfmin - mapgen_limit_min) / csize_n, 0);
s16 numcmax = MYMAX((mapgen_limit_max - ccfmax) / csize_n, 0);
// Mapgen edges, in nodes
mapgen_edge_min = ccmin - numcmin * csize_n;
mapgen_edge_max = ccmax + numcmax * csize_n;
m_mapgen_edges_calculated = true;
}
s32 MapgenParams::getSpawnRangeMax()
{
if (!m_mapgen_edges_calculated)
calcMapgenEdges();
return MYMIN(-mapgen_edge_min, mapgen_edge_max);
return std::pair<s16, s16>(ccmin - numcmin * csize_n, ccmax + numcmax * csize_n);
}