Minetest-WorldEditAdditions/worldeditadditions/utils/tables.lua
Starbeamrainbowlabs cdba38d37d
Start implementing snowball erosion algorithm.
There's still a long way to go - we're only just getting warmed up!
2020-08-20 01:53:26 +01:00

28 lines
797 B
Lua

--- Shallow clones a table.
-- @source http://lua-users.org/wiki/CopyTable
-- @param orig table The table to clone.
-- @return table The cloned table.
function worldeditadditions.shallowcopy(orig)
local orig_type = type(orig)
local copy
if orig_type == 'table' then
copy = {}
for orig_key, orig_value in pairs(orig) do
copy[orig_key] = orig_value
end
else -- number, string, boolean, etc
copy = orig
end
return copy
end
--- SHALLOWLY applies the values in source to overwrite the equivalent keys in target.
-- Warning: This function mutates target!
-- @param source table The source to take values from
-- @param target table The target to write values to
function worldeditadditions.table_apply(source, target)
for key, value in pairs(source) do
target[key] = value
end
end