+/*!
+ * Updates the lighting on the map.
+ * The result will be correct only if
+ * no nodes were changed except the given ones.
+ * Before calling this procedure make sure that all new nodes on
+ * the map have zero light level!
+ *
+ * \param oldnodes contains the MapNodes that were replaced by the new
+ * MapNodes and their positions
+ * \param modified_blocks output, contains all map blocks that
+ * the function modified
+ */
+void update_lighting_nodes(
+ Map *map,
+ const std::vector<std::pair<v3s16, MapNode>> &oldnodes,
+ std::map<v3s16, MapBlock*> &modified_blocks);
+
+/*!
+ * Updates borders of the given mapblock.
+ * Only updates if the block was marked with incomplete
+ * lighting and the neighbor is also loaded.
+ *
+ * \param block the block to update
+ * \param modified_blocks output, contains all map blocks that
+ * the function modified
+ */
+void update_block_border_lighting(Map *map, MapBlock *block,
+ std::map<v3s16, MapBlock*> &modified_blocks);