MgV5/6/7: Generate dungeons above water level

Use/add stone_surface_max_y to speed-optimise/guide dungeon generation
MgV7: Don't let mountain terrain chop dungeons at mapchunk borders
Make mountain terrain update stone_surface_max_y for caves in mountains

1 files changed, 1 insertions, 1 deletions

diff --git a/src/mapgen_v7.h b/src/mapgen_v7.h
index 7b08971bb..b297770d5 100644
--- a/src/mapgen_v7.h
+++ b/src/mapgen_v7.h
@@ -107,7 +107,7 @@ public:
 
 	virtual int generateTerrain();
 	int generateBaseTerrain();
-	void generateMountainTerrain();
+	int generateMountainTerrain(int ymax);
 	void generateRidgeTerrain();
 
 	void generateBiomes();