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https://github.com/Uberi/Minetest-WorldEdit.git
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Add deserializeAlign and various helper functions
This commit is contained in:
dgm3333
parent
2c4a791805
commit
ab2349a834
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@ -271,3 +271,309 @@ worldedit.deserialize = function(originpos, value)
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end
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return count
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end
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-- create a copy of a node added by worldedit.deserializeAligned, then rotate it and replace the original with the correctly aligned copy
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-- hopefully this function is not required, but is included as it may aid/improve backward compatibility if worldedit.getNewRotation doesn't work properly
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worldedit.screwdriver_handler = function(pos, axisChange)
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-- This function is hopefully not needed, but is included just in case (for old file formats)
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-- the basis of this is the minetest screwdriver function
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-- it would probably
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if axisChange == "Z" then return end
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-- create a copy of the node
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local nodeRot = minetest.get_node({x=pos.x, y=pos.y, z=pos.z})
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-- Get ready to set the param2
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local n = nodeRot.param2
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-- screwdriver uses axis direction. not sure why, but leave it there just in case...
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local axisdir = math.floor(n / 4)
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local rotation = n - axisdir * 4
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-- screwdriver uses a separate function rather than modulus. Not sure why, but this seems to work
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if axisChange == "X" then
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n = axisdir * 4 + ((rotation + 1) % 4)
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elseif axisChange == "z" then
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n = axisdir * 4 + ((rotation + 2) % 4)
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elseif axisChange == "x" then
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n = axisdir * 4 + ((rotation + 3) % 4)
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else
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n = axisdir * 4
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end
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-- now replace the node with the copied one
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nodeRot.param2 = n
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minetest.swap_node({x=pos.x, y=pos.y, z=pos.z}, nodeRot)
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end
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-- return the correct orientation for a node within a region being loaded by worldedit.deserializeAligned
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worldedit.getNewRotation = function(param2, axisChange)
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-- the basis of this is the minetest screwdriver function
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if axisChange == "Z" then return param2 end
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-- screwdriver uses axisdir. not sure why, but leave it there just in case...
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local axisdir = math.floor(param2 / 4)
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local rotation = param2 - axisdir * 4
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-- screwdriver uses a separate function rather than modulus. Not sure why, but modulus seems to work without the extra call
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if axisChange == "X" then
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param2 = axisdir * 4 + ((rotation + 1) % 4)
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elseif axisChange == "z" then
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param2 = axisdir * 4 + ((rotation + 2) % 4)
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elseif axisChange == "x" then
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param2 = axisdir * 4 + ((rotation + 3) % 4)
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end
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-- now return the new param2
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return param2
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end
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-- returns true if mod is known, else false. Accepts either a mod, or a mod:node
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worldedit.knownMod = function(modName, missingMods)
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local colonLoc = string.find(modName, ":")
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if colonLoc ~= nil then modName = modName:sub(0,colonLoc-1) end
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if not string.find(missingMods, (modName.. ";")) then
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if not minetest.get_modpath(modName) then
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missingMods = missingMods.. modName.. "; "
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print("unknown mod: ".. modName)
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return false, missingMods
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else
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return true, missingMods
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end
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else
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return false, missingMods
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end
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end
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worldedit.minmax = function(posToCheck,posMin,posMax)
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if posToCheck.x < posMin.x then posMin.x = posToCheck.x end
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if posToCheck.y < posMin.y then posMin.y = posToCheck.y end
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if posToCheck.z < posMin.z then posMin.z = posToCheck.z end
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if posToCheck.x > posMax.x then posMax.x = posToCheck.x end
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if posToCheck.y > posMax.y then posMax.y = posToCheck.y end
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if posToCheck.z > posMax.z then posMax.z = posToCheck.z end
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return posMin, posMax
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end
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--loads the nodes represented by string `value` at position `originpos`, returning the number of nodes deserialized, and locations
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-- it is essentially an enhancement of worldedit.load with the addition of aligning load to a particular axis, tracking missingmods
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-- not attempting (and failing) to add nodes to unknown mods, monitoring the bounds of the load region
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-- Use .deserializeAlign to replace .deserialize by running with axis="Z":-
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--worldedit.deserialize = function(originpos, value)
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-- count = worldedit.deserializeAlign(originpos, value, "Z", false)
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-- return count
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--end
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-- Use .deserializeAlign to replace .allocate by running with axis="Z" and runTest=true (as is done internally)
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--worldedit.allocate(originpos, value)
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-- count, posMin, posMax, unknownModCnt, missingMods = worldedit.deserializeAlign(originpos, value, "Z", true)
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-- return posMin, posMax, count
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--end
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--contains code based on [table.save/table.load](http://lua-users.org/wiki/SaveTableToFile) by ChillCode, available under the MIT license (GPL compatible)
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worldedit.deserializeAlign = function(originpos, value, axis, runTest)
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local huge = math.huge
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local posMin = {x=huge, y=huge, z=huge}
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local posMax = {x=-huge, y=-huge, z=-huge}
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local count = 0
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if not runTest then
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--make area stay loaded
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-- loop deserializeAlign once to identify posMin and posMax for loading (and holding) the region with voxel_manip
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local count, posMin, posMax = worldedit.deserializeAlign(originpos, value, axis, true)
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local manip = minetest.get_voxel_manip()
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manip:read_from_map(posMin, posMax)
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end
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local add_node, get_meta = minetest.add_node, minetest.get_meta
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local version = worldedit.valueversion(value)
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local unknownModCnt = 0
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local missingMods = ""
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-- print ("Debug info deserializeAligned: version: ".. version)
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-- minetest.chat_send_all("Debug info deserializeAligned: version: ".. version)
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if version == 1 or version == 2 then --original flat table format
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--obtain the node table
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local get_tables = loadstring(value)
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if not get_tables then --error loading value
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return count
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end
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local tables = get_tables()
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--transform the node table into an array of nodes
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for i = 1, #tables do
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for j, v in pairs(tables[i]) do
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if type(v) == "table" then
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tables[i][j] = tables[v[1]]
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end
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end
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end
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local nodes = tables[1]
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--load the node array
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count = #nodes
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if version == 1 then --original flat table format
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print ("WorldEdit deserializeAligned: attempting to rotate untested file format version: 1")
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for index = 1, count do
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local entry = nodes[index]
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local pos = entry[1]
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if axis == "x" then
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pos.x, pos.y, pos.z = originpos.x + pos.z, originpos.y - pos.y, originpos.z - pos.x
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elseif axis == "X" then
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pos.x, pos.y, pos.z = originpos.x - pos.z, originpos.y - pos.y, originpos.z + pos.x
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elseif axis == "z" then
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pos.x, pos.y, pos.z = originpos.x + pos.x, originpos.y - pos.y, originpos.z + pos.z
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elseif axis == "Z" then
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pos.x, pos.y, pos.z = originpos.x - pos.x, originpos.y - pos.y, originpos.z - pos.z
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end
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-- pos.x, pos.y, pos.z = originpos.x - pos.x, originpos.y - pos.y, originpos.z - pos.z
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posMin,posMax = worldedit.minmax(pos,posMin,posMax) -- update max and min positions
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entry[2].param2 = worldedit.getNewRotation(entry[2].param2,axis) -- adjust param2 (rotation of the node) to match the overall rotation of the load
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-- this has only been tested to work with version == 4
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-- I'm not sure of the format, so if it wouldn't work then disable and
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-- enable the worldedit.screwdriver_handler after the node has been added
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knownMod, missingMods = worldedit.knownMod(entry[2].name, missingMods)
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if knownMod then
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if not runTest then add_node(pos, entry[2]) end
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else
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unknownModCnt = unknownModCnt +1
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end
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-- worldedit.screwdriver_handler({x=pos.x, y=pos.y, z=pos.z}, axis) -- this would rotate the node after it's been placed (just in case needed for old format)
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end
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else --previous meta flat table format
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print ("WorldEdit deserializeAligned: attempting to rotate untested file format version: 2")
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for index = 1, #nodes do
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local entry = nodes[index]
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if axis == "x" then
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entry.x, entry.y, entry.z = originpos.x - entry.z, originpos.y + entry.y, originpos.z + entry.x
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elseif axis == "X" then
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entry.x, entry.y, entry.z = originpos.x + entry.z, originpos.y + entry.y, originpos.z - entry.x
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elseif axis == "z" then
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entry.x, entry.y, entry.z = originpos.x - entry.x, originpos.y + entry.y, originpos.z - entry.z
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elseif axis == "Z" then
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entry.x, entry.y, entry.z = originpos.x + entry.x, originpos.y + entry.y, originpos.z + entry.z
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end
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-- entry.x, entry.y, entry.z = originpos.x + entry.x, originpos.y + entry.y, originpos.z + entry.z
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posMin,posMax = worldedit.minmax(entry,posMin,posMax) -- update max and min positions
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entry.param2 = worldedit.getNewRotation(entry.param2,axis) -- adjust param2 (rotation of the node) to match the overall rotation of the load
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-- this has only been tested to work with version == 4
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-- I'm not sure of the format, so if it wouldn't work then disable and
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-- enable the worldedit.screwdriver_handler after the node has been added
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knownMod, missingMods = worldedit.knownMod(entry.name, missingMods)
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if knownMod then
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if not runTest then add_node(entry, entry) end --entry acts both as position and as node
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else
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unknownModCnt = unknownModCnt +1
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end
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-- worldedit.screwdriver_handler({x=entry.x, y=entry.y, z=entry.z}, axis) -- this would rotate the node after it's been placed (just in case needed for old format)
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get_meta(entry):from_table(entry.meta)
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end
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end
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elseif version == 3 then --previous list format
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print ("WorldEdit deserializeAligned: attempting to rotate untested file format version: 3")
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local pos = {x=0, y=0, z=0}
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local node = {name="", param1=0, param2=0}
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for x, y, z, name, param1, param2 in value:gmatch("([+-]?%d+)%s+([+-]?%d+)%s+([+-]?%d+)%s+([^%s]+)%s+(%d+)%s+(%d+)[^\r\n]*[\r\n]*") do --match node entries
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if axis == "x" then
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pos.x, pos.y, pos.z = originpos.x - tonumber(z), originpos.y + tonumber(y), originpos.z + tonumber(x)
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elseif axis == "X" then
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pos.x, pos.y, pos.z = originpos.x + tonumber(z), originpos.y + tonumber(y), originpos.z - tonumber(x)
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elseif axis == "z" then
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pos.x, pos.y, pos.z = originpos.x - tonumber(x), originpos.y + tonumber(y), originpos.z - tonumber(z)
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elseif axis == "z" then
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pos.x, pos.y, pos.z = originpos.x + tonumber(x), originpos.y + tonumber(y), originpos.z + tonumber(z)
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end
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-- pos.x, pos.y, pos.z = originpos.x + tonumber(x), originpos.y + tonumber(y), originpos.z + tonumber(z)
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node.name, node.param1, node.param2 = name, param1, param2
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posMin,posMax = worldedit.minmax(pos,posMin,posMax) -- update max and min positions
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node.param2 = worldedit.getNewRotation(node.param2,axis) -- adjust param2 (rotation of the node) to match the overall rotation of the load
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-- this has only been tested to work with version == 4
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-- I'm not sure of the format, so if it wouldn't work then disable and
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-- enable the worldedit.screwdriver_handler after the node has been added
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knownMod, missingMods = worldedit.knownMod(node.name, missingMods)
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if knownMod then
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if not runTest then add_node(pos, node) end
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else
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unknownModCnt = unknownModCnt +1
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end
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-- worldedit.screwdriver_handler({x=pos.x, y=pos.y, z=pos.z}, axis) -- this would rotate the node after it's been placed (just in case needed for old format)
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count = count + 1
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end
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elseif version == 4 then --current nested table format
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--wip: this is a filthy hack that works surprisingly well
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value = value:gsub("return%s*{", "", 1):gsub("}%s*$", "", 1)
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local escaped = value:gsub("\\\\", "@@"):gsub("\\\"", "@@"):gsub("(\"[^\"]*\")", function(s) return string.rep("@", #s) end)
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local startpos, startpos1, endpos = 1, 1
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local nodes = {}
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-- loop through the loaded file, and save each piece of node information to the node table
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while true do
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startpos, endpos = escaped:find("},%s*{", startpos)
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if not startpos then
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break
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end
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local current = value:sub(startpos1, startpos)
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table.insert(nodes, minetest.deserialize("return " .. current))
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startpos, startpos1 = endpos, endpos
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end
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table.insert(nodes, minetest.deserialize("return " .. value:sub(startpos1)))
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--local nodes = minetest.deserialize(value) --wip: this is broken for larger tables in the current version of LuaJIT
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--load the nodes
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count = #nodes
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for index = 1, count do
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local entry = nodes[index]
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print("Node: name: ".. entry.name)
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if axis == "x" then
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entry.x, entry.y, entry.z = originpos.x - entry.z, originpos.y + entry.y, originpos.z + entry.x
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elseif axis == "X" then
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entry.x, entry.y, entry.z = originpos.x + entry.z, originpos.y + entry.y, originpos.z - entry.x
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elseif axis == "z" then
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entry.x, entry.y, entry.z = originpos.x - entry.x, originpos.y + entry.y, originpos.z - entry.z
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elseif axis == "Z" then
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entry.x, entry.y, entry.z = originpos.x + entry.x, originpos.y + entry.y, originpos.z + entry.z
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end
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-- entry.x, entry.y, entry.z = originpos.x + entry.x, originpos.y + entry.y, originpos.z + entry.z
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posMin,posMax = worldedit.minmax(entry,posMin,posMax) -- update max and min positions
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entry.param2 = worldedit.getNewRotation(entry.param2,axis) -- adjust param2 (rotation of the node) to match the overall rotation of the load
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knownMod, missingMods = worldedit.knownMod(entry.name, missingMods)
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if knownMod then
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if not runTest then add_node(entry, entry) end --entry acts both as position and as node
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else
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unknownModCnt = unknownModCnt +1
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end
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end
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--load the metadata
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for index = 1, count do
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local entry = nodes[index]
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get_meta(entry):from_table(entry.meta)
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end
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end
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-- Correct pos1 and pos2 location so markers appear as they would have without rotation (ie when saved with corrected origin)
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if axis == "x" then
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posMin.x, posMax.x = posMax.x, posMin.x
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elseif axis == "X" then
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posMin.z, posMax.z = posMax.z, posMin.z
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elseif axis == "z" then
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posMin.x, posMax.x = posMax.x, posMin.x
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posMin.z, posMax.z = posMax.z, posMin.z
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end
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return count, posMin, posMax, unknownModCnt, missingMods
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end
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