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-rw-r--r--src/mapgen/cavegen.cpp8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/mapgen/cavegen.cpp b/src/mapgen/cavegen.cpp
index 2e2a1bbe3..d3d51935b 100644
--- a/src/mapgen/cavegen.cpp
+++ b/src/mapgen/cavegen.cpp
@@ -366,11 +366,13 @@ 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)
+ // Allow caves to extend up to 16 nodes beyond the mapchunk edge, to allow
+ // connecting with caves of neighbor mapchunks.
+ // 'insure' is needed to avoid many 'out of voxelmanip' cave nodes.
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;
+ ar += v3s16(1, 1, 1) * more * 2;
+ of -= v3s16(1, 1, 1) * more;
route_y_min = 0;
// Allow half a diameter + 7 over stone surface