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-rw-r--r--src/mapnode.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/src/mapnode.h b/src/mapnode.h
index aa3fa3960..d975a50c4 100644
--- a/src/mapnode.h
+++ b/src/mapnode.h
@@ -648,7 +648,24 @@ struct MapNode
}
};
+/*
+ Gets lighting value at face of node
+
+ Parameters must consist of air and !air.
+ Order doesn't matter.
+ If either of the nodes doesn't exist, light is 0.
+
+ parameters:
+ daynight_ratio: 0...1000
+ n: getNodeParent(p)
+ n2: getNodeParent(p + face_dir)
+ face_dir: axis oriented unit vector from p to p2
+
+ returns encoded light value.
+*/
+u8 getFaceLight(u32 daynight_ratio, MapNode n, MapNode n2,
+ v3s16 face_dir);
#endif