Remove old vector_extras code and use the MapDataStorage

This commit is contained in:
HybridDog
2020-04-13 19:30:15 +02:00
committed by Pierre-Adrien Langrognet
parent 9aa0e6ab3d
commit 0000cfb474
7 changed files with 124 additions and 94 deletions

View File

@ -1 +0,0 @@
vector_extras?

View File

@ -85,6 +85,16 @@ MapDataStorage.__index = {
self[vi_zy] = (self[vi_zy] or 0) + 1
end
end,
setAtI = function(self, vi, data)
local vi_zy = vi - vi % 0x10000
local vi_z = vi - vi % (0x10000 * 0x10000)
local is_new = self[vi] == nil
self[vi] = data
if is_new then
self[vi_z] = (self[vi_z] or 0) + 1
self[vi_zy] = (self[vi_zy] or 0) + 1
end
end,
removeAt = function(self, pos)
local vi_z = (pos.z + 0x8000) * 0x10000 * 0x10000
local vi_zy = vi_z + (pos.y + 0x8000) * 0x10000
@ -201,9 +211,10 @@ MapDataStorage.__index = {
return iterfunc
end,
iterAll = function(self)
local pairsfunc = pairs(self)
local previous_vi = nil
local function iterfunc()
local vi, v = pairsfunc()
local vi, v = next(self, previous_vi)
previous_vi = vi
if not vi then
return
end
@ -219,11 +230,91 @@ MapDataStorage.__index = {
z = z - 0x8000
return {x=x, y=y, z=z}, v
end
return iterfunc
end,
serialize = function(self)
local serialize_data = minetest.serialize
local indices = {}
local values = {}
local i = 1
for pos, v in self:iterAll() do
local vi = node_position_key(pos)
-- Convert the double reversible to a string;
-- minetest.serialize does not (yet) do this
indices[i] = ("%a"):format(vi)
values[i] = serialize_data(v)
end
result = {
version = "MapDataStorage_v1",
indices = "return {" .. table.concat(indices, ",") .. "}",
values = "return {" .. table.concat(values, ",") .. "}",
}
return minetest.serialize(result)
end,
}
MapDataStorage.deserialize = function(txtdata)
local data = minetest.deserialize(txtdata)
if data.version ~= "MapDataStorage_v1" then
minetest.log("error", "Unknown MapDataStorage version: " ..
data.version)
end
-- I assume that minetest.deserialize correctly deserializes the indices,
-- which are in the %a format
indices = minetest.deserialize(data.indices)
values = minetest.deserialize(data.values)
data = MapDataStorage()
for i = 1,#indices do
local vi = indices[i]
local v = values[i]
data:setAtI(vi, v)
end
return data
end
moremesecons.MapDataStorage = MapDataStorage
-- Legacy
-- vector_extras there: https://github.com/HybridDog/vector_extras
-- Creates a MapDataStorage object from old vector_extras generated table
function moremesecons.load_old_data_from_pos(t)
local data = MapDataStorage()
for z, yxv in pairs(t) do
for y, xv in pairs(yxv) do
for x, v in pairs(xv) do
data:setAt({x=x, y=y, z=z}, v)
end
end
end
return data
end
function moremesecons.load_old_dfp_storage(modstorage, name)
local data = minetest.deserialize(modstorage:get_string(name))
if not data then
return
end
return moremesecons.load_old_data_from_pos(data)
end
function moremesecons.load_MapDataStorage_legacy(modstorage, name, oldname)
local t_old = moremesecons.load_old_dfp_storage(modstorage, oldname)
local t
if t_old and t_old ~= "" then
t = t_old
modstorage:set_string(name, t:serialize())
modstorage:set_string(oldname, nil)
return t
end
t = modstorage:get_string("teleporters_rids_v2")
if t and t ~= "" then
return MapDataStorage.deserialize(t)
end
return MapDataStorage()
end
-- This testing code shows an example usage of the MapDataStorage code
local function do_test()
print("Test if iter returns correct positions when a lot is set")
@ -284,53 +375,5 @@ local function do_test()
--~ data:iterAll()
end
--~ do_test()
do_test()
if not vector.get_data_from_pos then
function vector.get_data_from_pos(tab, z,y,x)
local data = tab[z]
if data then
data = data[y]
if data then
return data[x]
end
end
end
end
if not vector.set_data_to_pos then
function vector.set_data_to_pos(tab, z,y,x, data)
if tab[z] then
if tab[z][y] then
tab[z][y][x] = data
return
end
tab[z][y] = {[x] = data}
return
end
tab[z] = {[y] = {[x] = data}}
end
end
if not vector.remove_data_from_pos then
function vector.remove_data_from_pos(tab, z,y,x)
if vector.get_data_from_pos(tab, z,y,x) == nil then
return
end
tab[z][y][x] = nil
if not next(tab[z][y]) then
tab[z][y] = nil
end
if not next(tab[z]) then
tab[z] = nil
end
end
end
if not vector.unpack then
function vector.unpack(pos)
return pos.z, pos.y, pos.x
end
end