28 lines
818 B
Lua
28 lines
818 B
Lua
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minetest.count_nodes_in_area = function( pos_min, pos_max, names, is_group )
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local counts, node_counts
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local voxel_manip = minetest.get_voxel_manip( )
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voxel_manip:read_from_map( pos_min, pos_max )
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node_counts = select( 2, minetest.find_nodes_in_area( pos_min, pos_max, names ) )
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if is_group == false then
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return counts
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end
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counts = { } -- use new table for transposing node counts into group counts
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for _, name in ipairs( names ) do
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local group_name = string.match( name, "group:(.+)" )
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if group_name then
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counts[ name ] = 0
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for node_name, node_count in pairs( node_counts ) do
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if minetest.registered_nodes[ node_name ].groups[ group_name ] then
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counts[ name ] = counts[ name ] + node_count
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end
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end
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else
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counts[ name ] = node_counts[ name ]
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end
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end
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return counts
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end
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