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Randomwalk caves: Reduce 'insure' value from 10 to 2 (#9035)

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This value reduces how far randomwalk caves can extend into the
mapchunk padding, to avoid 'out of voxelmanip' cave nodes which cause
flattened cave walls.
Testing shows that a value of 2 (instead of 10) is enough to make
'out of area' nodes extremely rare.
Reducing this value results in a higher chance of overlap and
connection with caves of neighbour mapchunks.
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Paramat 2019-10-13 00:18:23 +01:00 committed by GitHub
parent 69a2099c04
commit 47d0779365
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1 changed files with 2 additions and 3 deletions
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src/mapgen/cavegen.cpp
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@ -364,9 +364,8 @@ void CavesRandomWalk::makeCave(MMVManip *vm, v3s16 nmin, v3s16 nmax,
// Area starting point in nodes
of = node_min;
// Allow a bit more
//(this should be more than the maximum radius of the tunnel)
const s16 insure = 10;
// Allow a bit more (this should be more than the maximum radius of the tunnel)
const s16 insure = 2;
s16 more = MYMAX(MAP_BLOCKSIZE - max_tunnel_diameter / 2 - insure, 1);
ar += v3s16(1, 0, 1) * more * 2;
of -= v3s16(1, 0, 1) * more;