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Minetest-WorldEdit/worldedit/compatibility.lua
ShadowNinja 796aa3870d Clean up serialization
* Adds a header to serialized data (to make version checking sane).
  * Removes the duplicate deserialization for `worldedit.deserialize` and `worldedit.allocate`.
  * Optimizes `worldedit.deserialize` by only deserializing the data once.
  * Makes some fields optional.
  * Cleans up the comments and a little of the code style.
2014-10-24 16:45:10 -04:00

37 lines
1017 B
Lua

worldedit = worldedit or {}
local minetest = minetest --local copy of global
worldedit.allocate_old = worldedit.allocate
worldedit.deserialize_old = worldedit.deserialize
worldedit.metasave = function(pos1, pos2, filename)
local file, err = io.open(filename, "wb")
if err then return 0 end
local data, count = worldedit.serialize(pos1, pos2)
file:write(data)
file:close()
return count
end
worldedit.metaload = function(originpos, filename)
filename = minetest.get_worldpath() .. "/schems/" .. file .. ".wem"
local file, err = io.open(filename, "wb")
if err then return 0 end
local data = file:read("*a")
return worldedit.deserialize(originpos, data)
end
worldedit.scale = function(pos1, pos2, factor)
return worldedit.stretch(pos1, pos2, factor, factor, factor)
end
worldedit.valueversion = function(value)
local version = worldedit.read_header(value)
if not version or version > worldedit.LATEST_SERIALIZATION_VERSION then
return 0
end
return version
end