mirror of
https://github.com/PHIDIAS0303/ExpCluster.git
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72 lines
2.8 KiB
Lua
72 lines
2.8 KiB
Lua
--- A system which stores peristent data and makes it easy to sync updates between changes
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local Global = require 'utils.global'
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local Enum = ext_require('expcore.common','enum')
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local Store = {
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data = {},
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locations = {},
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types = Enum{
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'local', -- no persistent data, only triggers update_callback
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'player', -- each player has they own sub_location
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'force', -- each force has its own sub_location
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'surface', -- each surface has its own sub_location
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'game', -- the entrie game has a single store of data
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'global' -- not yet impimented, data will sync between all servers
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}
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}
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Global.register(Store.data,function(tbl)
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Store.data = tbl
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end)
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--- Registers a new store location
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-- @tparam location string a unique location string that will hold the data
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-- @tparam type string see Store.types
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-- @tparam update_callback function the function which will be called with the new value that is set
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function Store.register_location(location,store_type,update_callback)
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if Store.locations[location] then
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store_type = Store.locations[location]
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store_type = type(store_type) == 'number' and Store.types(store_type) or store_type
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return error('The location is already registed: '..location..' and is type: '..store_type,2)
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end
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if not Store.type[type] then
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return error('Attempted to set invlid type: '..type..' for location: '..location,2)
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end
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store_type = type(store_type) == 'string' and Store.types(store_type) or store_type
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Store.locations[location] = {
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location=location,
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type=store_type,
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update_callback=update_callback
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}
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if store_type ~= Store.types['local'] and store_type ~= Store.types.global then
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Store.data[location] = {}
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end
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end
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--- Sets a new value for a location, will trigger the update callback
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function Store.set_location(location,sub_location,value,...)
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if not Store.locations[location] then
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return error('Invalid store location: '..location,2)
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end
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location = Store.locations[location]
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if location.type == Store.types.game then
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Store.data[location.location] = sub_location
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elseif location.type ~= Store.types['local'] and location.type ~= Store.types.global then
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Store.data[location.location][sub_location] = value
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end
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location.update_callback(sub_location,value,...)
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end
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--- Gets the value for a location
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function Store.get_location(location,sub_location)
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if not Store.locations[location] then
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return error('Invalid store location: '..location,2)
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end
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location = Store.locations[location]
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if location.type == Store.types.game then
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return Store.data[location.location]
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elseif location.type ~= Store.types['local'] and location.type ~= Store.types.global then
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return Store.data[location.location][sub_location]
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end
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end
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return Store |