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Merge pull request #12 from cornernote/master

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added //metasave and //metaload (clean pull)
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Anthony 2012-09-20 13:13:09 -07:00
commit f42d2358fd
4 changed files with 269 additions and 0 deletions
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26
README.md
View File

@ -192,6 +192,20 @@ Load nodes from "(world folder)/schems/<file>.we" with position 1 of the current
//load some random filename
//load huge_base
### //metasave <file>
Save the current WorldEdit region including metadata to "(world folder)/schems/<file>.wem".
//metasave some random filename
//metasave huge_base
### //metaload <file>
Load nodes and metadata from "(world folder)/schems/<file>.wem" with position 1 of the current WorldEdit region as the origin.
//metaload some random filename
//metaload huge_base
WorldEdit API
-------------
WorldEdit exposes all significant functionality in a simple interface. Adding WorldEdit to the file "depends.txt" in your mod gives you access to all of the `worldedit` functions. These are useful if you're looking for high-performance node manipulation without all the hassle of writing tons of code.
@ -294,6 +308,18 @@ This function is deprecated, and should not be used unless there is a need to su
Returns the number of nodes deserialized.
### worldedit.metasave(pos1, pos2, file)
Saves the nodes and meta defined by positions `pos1` and `pos2` into a file
Returns the number of nodes saved
### worldedit.metaload(pos1, file)
Loads the nodes and meta from `file` to position `pos1`
Returns the number of nodes loaded
License
-------
Copyright 2012 sfan5 and Anthony Zhang (Temperest)

64
functions.lua
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@ -566,3 +566,67 @@ worldedit.deserialize_old = function(originpos, value)
end
return count
end
--saves the nodes and meta defined by positions `pos1` and `pos2` into a file, returning the number of nodes saved
worldedit.metasave = function(pos1, pos2, file)
local path = minetest.get_worldpath() .. "/schems"
local filename = path .. "/" .. file .. ".wem"
os.execute("mkdir \"" .. path .. "\"") --create directory if it does not already exist
local rows = {}
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local pos = {x=pos1.x, y=0, z=0}
local count = 0
local result = {}
local env = minetest.env
while pos.x <= pos2.x do
pos.y = pos1.y
while pos.y <= pos2.y do
pos.z = pos1.z
while pos.z <= pos2.z do
local node = env:get_node(pos)
if node.name ~= "air" and node.name ~= "ignore" then
count = count + 1
local row = {
x = pos.x-pos1.x,
y = pos.y-pos1.y,
z = pos.z-pos1.z,
name = node.name,
param1 = node.param1,
param2 = node.param2,
meta = env:get_meta(pos):to_table(),
}
table.insert(rows, row)
end
pos.z = pos.z + 1
end
pos.y = pos.y + 1
end
pos.x = pos.x + 1
end
local err = table.save(rows,filename)
if err then return _,err end
return count
end
--loads the nodes and meta from `file` to position `pos1`, returning the number of nodes loaded
worldedit.metaload = function(pos1, file)
local filename = minetest.get_worldpath() .. "/schems/" .. file .. ".wem"
local rows, err = table.load(filename)
if err then return _,err end
local pos = {x=0, y=0, z=0}
local node = {name="", param1=0, param2=0}
local count = 0
local env = minetest.env
for i,row in pairs(rows) do
pos.x = pos1.x + tonumber(row.x)
pos.y = pos1.y + tonumber(row.y)
pos.z = pos1.z + tonumber(row.z)
node.name = row.name
node.param1 = row.param1
node.param2 = row.param2
env:add_node(pos, node)
env:get_meta(pos):from_table(row.meta)
count = count + 1
end
return count
end

46
init.lua
View File

@ -529,3 +529,49 @@ minetest.register_chatcommand("/load", {
minetest.chat_send_player(name, count .. " nodes loaded")
end,
})
minetest.register_chatcommand("/metasave", {
params = "<file>",
description = "Save the current WorldEdit region to \"(world folder)/schems/<file>.wem\"",
privs = {worldedit=true},
func = function(name, param)
local pos1, pos2 = worldedit.pos1[name], worldedit.pos2[name]
if pos1 == nil or pos2 == nil then
minetest.chat_send_player(name, "No WorldEdit region selected")
return
end
if param == "" then
minetest.chat_send_player(name, "Invalid usage: " .. param)
return
end
local count, err = worldedit.metasave(pos1, pos2, param)
if err then
minetest.chat_send_player(name, "error loading file: " .. err)
else
minetest.chat_send_player(name, count .. " nodes saved")
end
end,
})
minetest.register_chatcommand("/metaload", {
params = "<file>",
description = "Load nodes from \"(world folder)/schems/<file>.wem\" with position 1 of the current WorldEdit region as the origin",
privs = {worldedit=true},
func = function(name, param)
local pos1 = worldedit.pos1[name]
if pos1 == nil then
minetest.chat_send_player(name, "No WorldEdit region selected")
return
end
if param == "" then
minetest.chat_send_player(name, "Invalid usage: " .. param)
return
end
local count, err = worldedit.metaload(pos1, param)
if err then
minetest.chat_send_player(name, "error loading file: " .. err)
else
minetest.chat_send_player(name, count .. " nodes loaded")
end
end,
})

133
table_save.lua Normal file
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@ -0,0 +1,133 @@
--[[
Save Table to File
Load Table from File
v 1.0
Lua 5.2 compatible
Only Saves Tables, Numbers and Strings
Insides Table References are saved
Does not save Userdata, Metatables, Functions and indices of these
----------------------------------------------------
table.save( table , filename )
on failure: returns an error msg
----------------------------------------------------
table.load( filename or stringtable )
Loads a table that has been saved via the table.save function
on success: returns a previously saved table
on failure: returns as second argument an error msg
----------------------------------------------------
Licensed under the same terms as Lua itself.
]]--
do
-- declare local variables
--// exportstring( string )
--// returns a "Lua" portable version of the string
local function exportstring( s )
return string.format("%q", s)
end
--// The Save Function
function table.save( tbl,filename )
local charS,charE = " ","\n"
local file,err = io.open( filename, "wb" )
if err then return err end
-- initiate variables for save procedure
local tables,lookup = { tbl },{ [tbl] = 1 }
file:write( "return {"..charE )
for idx,t in ipairs( tables ) do
file:write( "-- Table: {"..idx.."}"..charE )
file:write( "{"..charE )
local thandled = {}
for i,v in ipairs( t ) do
thandled[i] = true
local stype = type( v )
-- only handle value
if stype == "table" then
if not lookup[v] then
table.insert( tables, v )
lookup[v] = #tables
end
file:write( charS.."{"..lookup[v].."},"..charE )
elseif stype == "string" then
file:write( charS..exportstring( v )..","..charE )
elseif stype == "number" then
file:write( charS..tostring( v )..","..charE )
end
end
for i,v in pairs( t ) do
-- escape handled values
if (not thandled[i]) then
local str = ""
local stype = type( i )
-- handle index
if stype == "table" then
if not lookup[i] then
table.insert( tables,i )
lookup[i] = #tables
end
str = charS.."[{"..lookup[i].."}]="
elseif stype == "string" then
str = charS.."["..exportstring( i ).."]="
elseif stype == "number" then
str = charS.."["..tostring( i ).."]="
end
if str ~= "" then
stype = type( v )
-- handle value
if stype == "table" then
if not lookup[v] then
table.insert( tables,v )
lookup[v] = #tables
end
file:write( str.."{"..lookup[v].."},"..charE )
elseif stype == "string" then
file:write( str..exportstring( v )..","..charE )
elseif stype == "number" then
file:write( str..tostring( v )..","..charE )
end
end
end
end
file:write( "},"..charE )
end
file:write( "}" )
file:close()
end
--// The Load Function
function table.load( sfile )
local ftables,err = loadfile( sfile )
if err then return _,err end
local tables = ftables()
for idx = 1,#tables do
local tolinki = {}
for i,v in pairs( tables[idx] ) do
if type( v ) == "table" then
tables[idx][i] = tables[v[1]]
end
if type( i ) == "table" and tables[i[1]] then
table.insert( tolinki,{ i,tables[i[1]] } )
end
end
-- link indices
for _,v in ipairs( tolinki ) do
tables[idx][v[2]],tables[idx][v[1]] = tables[idx][v[1]],nil
end
end
return tables[1]
end
-- close do
end
-- ChillCode