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init.lua
159
init.lua
@ -1,99 +1,94 @@
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datastorage={}
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datastorage = {data = {}}
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datastorage["registered_players"]={}
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datastorage.save_data = function(table_pointer)
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local DIR_DELIM = DIR_DELIM or "/"
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local data = minetest.serialize( datastorage[table_pointer] )
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local data_path = minetest.get_worldpath()..DIR_DELIM.."datastorage"..DIR_DELIM
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local path = minetest.get_worldpath().."/datastorage_"..table_pointer..".data"
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local file = io.open( path, "w" )
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function datastorage.save(id)
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if( file ) then
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local data = datastorage.data[id]
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file:write( data )
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-- Check if the container is empty
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file:close()
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if not data or not next(data) then return end
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return true
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for _, sub_data in pairs(data) do
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else return nil
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if not next(sub_data) then return end
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end
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end
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end
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datastorage.load_data = function(table_pointer)
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local file = io.open(data_path..id, "w")
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local path = minetest.get_worldpath().."/datastorage_"..table_pointer..".data"
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if not file then
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local file = io.open( path, "r" )
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-- Most likely the data directory doesn't exist, create it
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if( file ) then
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-- and try again.
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local data = file:read("*all")
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-- Using os.execute like this is not very platform independent
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datastorage[table_pointer] = minetest.deserialize( data )
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-- or safe; but most platforms name their directory
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file:close()
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-- creation utility mkdir, and the data path is unlikely to
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-- contain special characters and is only mutabable by the
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-- admin.
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os.execute('mkdir "'..data_path..'"')
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file = io.open(data_path..id, "w")
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if not file then return end
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end
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local datastr = minetest.serialize(data)
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if not datastr then return end
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file:write(datastr)
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file:close()
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return true
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return true
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else return nil
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end
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function datastorage.load(id)
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local file = io.open(data_path..id, "r")
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if not file then return end
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local data = minetest.deserialize(file:read("*all"))
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datastorage.data[id] = data
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file:close()
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return data
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end
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-- Compatability
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function datastorage.get_container(player, id)
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return datastorage.get(player:get_player_name(), id)
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end
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-- Retrieves a value from the data storage
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function datastorage.get(id, ...)
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local last = datastorage.data[id]
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if last == nil then last = datastorage.load(id) end
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if last == nil then
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last = {}
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datastorage.data[id] = last
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end
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end
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end
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local cur = last
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for _, sub_id in ipairs({...}) do
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datastorage.get_container = function (mod_name, player)
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last = cur
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local player_name = player:get_player_name()
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cur = cur[sub_id]
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local container = datastorage[player_name]
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if cur == nil then
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if container[mod_name] == nil then
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cur = {}
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container[mod_name] = {}
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last[sub_id] = cur
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end
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end
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end
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datastorage.save_data(player_name)
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return cur
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return container[mod_name]
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end
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end
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-- forced save of all player's data
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-- Saves a container and reomves it from memory
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datastorage.save_container = function (player)
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function datastorage.finish(id)
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local player_name = player:get_player_name()
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datastorage.save(id)
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datastorage.save_data(player_name)
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datastorage.data[id] = nil
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end
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end
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-- Compatability
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-- Init
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function datastorage.save_container(player)
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if datastorage.load_data("registered_players") == nil then
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return datastorage.save(player:get_player_name())
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datastorage["registered_players"]={}
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datastorage.save_data("registered_players")
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end
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end
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minetest.register_on_joinplayer(function(player)
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local player_name = player:get_player_name()
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local registered = nil
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for __,tab in ipairs(datastorage["registered_players"]) do
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if tab["player_name"] == player_name then registered = true break end
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end
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if registered == nil then
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print("creating new one")
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local new={}
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new["player_name"]=player_name
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table.insert(datastorage["registered_players"],new)
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datastorage[player_name]={}
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datastorage.save_data("registered_players")
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datastorage.save_data(player_name)
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else
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print("loading containers")
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datastorage.load_data(player_name)
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end
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-- TEST AREA:
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local test_container = datastorage.get_container("dupa",player)
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test_container["var1"] = 1.23
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test_container["table1"] = {}
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test_container["table1"]["var2"] = "nowa"
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test_container["table1"]["var3"] = "a string"
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print("Testing:")
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print(dump(test_container))
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--datastorage.save_container(player)
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-- END OF TEST AREA
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end
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)
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minetest.register_on_leaveplayer(function(player)
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minetest.register_on_leaveplayer(function(player)
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local player_name = player:get_player_name()
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local player_name = player:get_player_name()
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datastorage.save_data(player_name)
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datastorage.save(player_name)
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datastorage[player_name] = nil
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datastorage.data[player_name] = nil
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end
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end)
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)
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minetest.register_on_shutdown(function()
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minetest.register_on_shutdown(function()
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for __,tab in ipairs(datastorage["registered_players"]) do
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for id in pairs(datastorage.data) do
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if datastorage[tab["player_name"]] == nil then break end
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datastorage.save(id)
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datastorage.save_data(tab["player_name"])
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end
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end
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end
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end)
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)
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