read_globals = {
-- Defined by Minetest
"minetest", "PseudoRandom", "VoxelArea", "string", "dump", "math",
vector = {
fields = {
"add", "cross", "direction", "distance", "dot", "multiply",
"new", "normalize", "round", "subtract",
"from_number", "get_max_coord", "twoline", "threeline", "rayIter"
}