unified_inventory/datastorage.lua

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datastorage={}
datastorage["!registered_players"]={}
datastorage.save_data = function(table_pointer)
local data = minetest.serialize( datastorage[table_pointer] )
local path = minetest.get_worldpath().."/datastorage_"..table_pointer..".data"
local file = io.open( path, "w" )
if( file ) then
file:write( data )
file:close()
return true
else return nil
end
end
datastorage.load_data = function(table_pointer)
local path = minetest.get_worldpath().."/datastorage_"..table_pointer..".data"
local file = io.open( path, "r" )
if( file ) then
local data = file:read("*all")
datastorage[table_pointer] = minetest.deserialize( data )
file:close()
return true
else return nil
end
end
datastorage.get_container = function (player, key)
local player_name = player:get_player_name()
local container = datastorage[player_name]
if container[key] == nil then
container[key] = {}
end
datastorage.save_data(player_name)
return container[key]
end
-- forced save of all player's data
datastorage.save_container = function (player)
local player_name = player:get_player_name()
datastorage.save_data(player_name)
end
-- Init
if datastorage.load_data("!registered_players") == nil then
datastorage["!registered_players"]={}
datastorage.save_data("!registered_players")
end
minetest.register_on_joinplayer(function(player)
local player_name = player:get_player_name()
local registered = nil
for __,tab in ipairs(datastorage["!registered_players"]) do
if tab["player_name"] == player_name then registered = true break end
end
if registered == nil then
local new={}
new["player_name"]=player_name
table.insert(datastorage["!registered_players"],new)
datastorage[player_name]={}
datastorage.save_data("!registered_players")
datastorage.save_data(player_name)
else
datastorage.load_data(player_name)
end
end
)
minetest.register_on_leaveplayer(function(player)
local player_name = player:get_player_name()
datastorage.save_data(player_name)
datastorage[player_name] = nil
end
)
minetest.register_on_shutdown(function()
for __,tab in ipairs(datastorage["!registered_players"]) do
if datastorage[tab["player_name"]] == nil then break end
datastorage.save_data(tab["player_name"])
end
end
)