Cavegen: Wider tunnels in mgflat, mgfractal, mgvalleys

As mgv7 is now the default mapgen i re-checked its tunnel width on request,
discovered they needed to be wider, and have made this change.
This commit widens the identical 3D noise tunnels in the other mapgens in
exactly the same way.

3 files changed, 3 insertions, 3 deletions

diff --git a/src/mapgen_flat.cpp b/src/mapgen_flat.cpp
index 2c1715e61..cc120b580 100644
--- a/src/mapgen_flat.cpp
+++ b/src/mapgen_flat.cpp
@@ -82,7 +82,7 @@ MapgenFlatParams::MapgenFlatParams()
 	spflags          = 0;
 	ground_level     = 8;
 	large_cave_depth = -33;
-	cave_width       = 0.2;
+	cave_width       = 0.09;
 	lake_threshold   = -0.45;
 	lake_steepness   = 48.0;
 	hill_threshold   = 0.45;
diff --git a/src/mapgen_fractal.cpp b/src/mapgen_fractal.cpp
index 0951a0afa..a6ed18ae7 100644
--- a/src/mapgen_fractal.cpp
+++ b/src/mapgen_fractal.cpp
@@ -84,7 +84,7 @@ MapgenFractal::~MapgenFractal()
 MapgenFractalParams::MapgenFractalParams()
 {
 	spflags    = 0;
-	cave_width = 0.2;
+	cave_width = 0.09;
 	fractal    = 1;
 	iterations = 11;
 	scale      = v3f(4096.0, 1024.0, 4096.0);
diff --git a/src/mapgen_valleys.cpp b/src/mapgen_valleys.cpp
index 456e6aa1a..ce7a95329 100644
--- a/src/mapgen_valleys.cpp
+++ b/src/mapgen_valleys.cpp
@@ -143,7 +143,7 @@ MapgenValleysParams::MapgenValleysParams()
 	river_depth        = 4;  // How deep to carve river channels.
 	river_size         = 5;  // How wide to make rivers.
 	water_features     = 0;  // How often water will occur in caves.
-	cave_width         = 0.2;
+	cave_width         = 0.09;
 
 	np_cave1              = NoiseParams(0,     12,   v3f(61,   61,   61),   52534, 3, 0.5,   2.0);
 	np_cave2              = NoiseParams(0,     12,   v3f(67,   67,   67),   10325, 3, 0.5,   2.0);