466 lines
14 KiB
Lua
466 lines
14 KiB
Lua
-- holostorage Network
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-- Some code borrowed from Technic (https://github.com/minetest-mods/technic/blob/master/technic/machines/switching_station.lua)
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holostorage.network = {}
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holostorage.network.networks = {}
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holostorage.network.devices = {}
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holostorage.network.redundant_warn = {}
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function holostorage.get_or_load_node(pos)
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local node = minetest.get_node_or_nil(pos)
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if node then return node end
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local vm = VoxelManip()
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local MinEdge, MaxEdge = vm:read_from_map(pos, pos)
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return nil
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end
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local function get_item_group(name, grp)
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return minetest.get_item_group(name, grp) > 0
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end
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function holostorage.network.is_network_conductor(name)
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return get_item_group(name, "holostorage_distributor")
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end
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function holostorage.network.is_network_device(name)
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return get_item_group(name, "holostorage_device")
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end
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-----------------------
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-- Network traversal --
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-----------------------
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local function flatten(map)
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local list = {}
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for key, value in pairs(map) do
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list[#list + 1] = value
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end
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return list
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end
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-- Add a node to the network
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local function add_network_node(nodes, pos, network_id)
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local node_id = minetest.hash_node_position(pos)
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holostorage.network.devices[node_id] = network_id
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if nodes[node_id] then
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return false
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end
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nodes[node_id] = pos
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return true
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end
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local function add_cable_node(nodes, pos, network_id, queue)
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if add_network_node(nodes, pos, network_id) then
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queue[#queue + 1] = pos
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end
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end
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local check_node_subp = function(dv_nodes, st_nodes, controllers, all_nodes, pos, devices, c_pos, network_id, queue)
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holostorage.get_or_load_node(pos)
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local meta = minetest.get_meta(pos)
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local name = minetest.get_node(pos).name
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if holostorage.network.is_network_conductor(name) then
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add_cable_node(all_nodes, pos, network_id, queue)
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end
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if devices[name] then
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meta:set_string("st_network", minetest.pos_to_string(c_pos))
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if get_item_group(name, "holostorage_controller") then
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-- Another controller, disable it
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add_network_node(controllers, pos, network_id)
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meta:set_int("active", 0)
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elseif get_item_group(name, "holostorage_storage") then
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add_network_node(st_nodes, pos, network_id)
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elseif holostorage.network.is_network_device(name) then
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add_network_node(dv_nodes, pos, network_id)
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end
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meta:set_int("nw_timeout", 2)
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end
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end
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-- Traverse a network given a list of machines and a cable type name
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local traverse_network = function(dv_nodes, st_nodes, controllers, all_nodes, pos, devices, c_pos, network_id, queue)
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local positions = {
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{x=pos.x+1, y=pos.y, z=pos.z},
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{x=pos.x-1, y=pos.y, z=pos.z},
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{x=pos.x, y=pos.y+1, z=pos.z},
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{x=pos.x, y=pos.y-1, z=pos.z},
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{x=pos.x, y=pos.y, z=pos.z+1},
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{x=pos.x, y=pos.y, z=pos.z-1}}
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for _, cur_pos in pairs(positions) do
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check_node_subp(dv_nodes, st_nodes, controllers, all_nodes, cur_pos, devices, c_pos, network_id, queue)
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end
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end
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local touch_nodes = function(list)
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for _, pos in ipairs(list) do
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local meta = minetest.get_meta(pos)
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meta:set_int("nw_timeout", 2) -- Touch node
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end
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end
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local function get_network(c_pos, positions)
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local network_id = minetest.hash_node_position(c_pos)
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local cached = holostorage.network.networks[network_id]
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if cached then
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touch_nodes(cached.dv_nodes)
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touch_nodes(cached.st_nodes)
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for _, pos in ipairs(cached.controllers) do
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local meta = minetest.get_meta(pos)
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meta:set_int("active", 0)
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meta:set_string("active_pos", minetest.serialize(c_pos))
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end
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return cached.dv_nodes, cached.st_nodes
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end
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local dv_nodes = {}
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local st_nodes = {}
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local controllers = {}
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local all_nodes = {}
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local queue = {}
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for pos in pairs(positions) do
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queue = {}
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local node = minetest.get_node(pos)
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if node and holostorage.network.is_network_conductor(node.name) and not holostorage.network.is_network_device(node.name) then
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add_cable_node(all_nodes, pos, network_id, queue)
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elseif node and holostorage.network.is_network_device(node.name) then
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queue = {c_pos}
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end
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while next(queue) do
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local to_visit = {}
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for _, posi in ipairs(queue) do
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traverse_network(dv_nodes, st_nodes, controllers, all_nodes,
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posi, holostorage.devices, c_pos, network_id, to_visit)
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end
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queue = to_visit
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end
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end
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dv_nodes = flatten(dv_nodes)
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st_nodes = flatten(st_nodes)
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controllers = flatten(controllers)
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all_nodes = flatten(all_nodes)
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holostorage.network.networks[network_id] = {all_nodes = all_nodes, dv_nodes = dv_nodes,
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st_nodes = st_nodes, controllers = controllers}
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return dv_nodes, st_nodes
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end
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--------------------
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-- Controller ABM --
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--------------------
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holostorage.network.active_state = true
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minetest.register_chatcommand("storagectl", {
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params = "state",
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description = "Enables or disables holostorage's storage controller ABM",
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privs = { basic_privs = true },
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func = function(name, state)
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if state == "on" then
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holostorage.network.active_state = true
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else
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holostorage.network.active_state = false
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end
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end
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})
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function holostorage.network.register_abm_controller(name)
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minetest.register_abm({
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nodenames = {name},
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label = "Storage Controller", -- allows the mtt profiler to profile this abm individually
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interval = 1,
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chance = 1,
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action = function(pos, node, active_object_count, active_object_count_wider)
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if not holostorage.network.active_state then return end
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local meta = minetest.get_meta(pos)
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local meta1 = nil
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local dv_nodes = {}
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local st_nodes = {}
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local device_name = "Storage Controller"
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local positions = {
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{x=pos.x, y=pos.y-1, z=pos.z},
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{x=pos.x, y=pos.y+1, z=pos.z},
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{x=pos.x-1, y=pos.y, z=pos.z},
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{x=pos.x+1, y=pos.y, z=pos.z},
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{x=pos.x, y=pos.y, z=pos.z-1},
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{x=pos.x, y=pos.y, z=pos.z+1}
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}
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local ntwks = {}
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local errored = false
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local nw_branches = 0
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for _,pos1 in pairs(positions) do
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--Disable if necessary
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if meta:get_int("active") ~= 1 then
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minetest.forceload_free_block(pos)
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minetest.forceload_free_block(pos1)
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meta:set_string("infotext",("%s Already Present"):format(device_name))
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local poshash = minetest.hash_node_position(pos)
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if not holostorage.network.redundant_warn[poshash] then
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holostorage.network.redundant_warn[poshash] = true
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print("[holostorage] Warning: redundant controller found near "..minetest.pos_to_string(pos))
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end
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errored = true
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return
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end
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local name = minetest.get_node(pos1).name
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local networked = holostorage.network.is_network_conductor(name)
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if networked then
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ntwks[pos1] = true
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nw_branches = nw_branches + 1
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end
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end
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if errored then
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return
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end
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if nw_branches == 0 then
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minetest.forceload_free_block(pos)
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meta:set_string("infotext", ("%s Has No Network"):format(device_name))
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return
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else
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minetest.forceload_block(pos)
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end
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dv_nodes, st_nodes = get_network(pos, ntwks)
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-- Run all the nodes
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local function run_nodes(list)
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for _, pos2 in ipairs(list) do
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holostorage.get_or_load_node(pos2)
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local node2 = minetest.get_node(pos2)
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local nodedef
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if node2 and node2.name then
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nodedef = minetest.registered_nodes[node2.name]
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end
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if nodedef and nodedef.holostorage_run then
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nodedef.holostorage_run(pos2, node2, pos)
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elseif nodedef then
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local imeta = minetest.get_meta(pos2)
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imeta:set_string("infotext", ("%s Active"):format(nodedef.description))
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end
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end
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end
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run_nodes(dv_nodes)
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run_nodes(st_nodes)
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meta:set_string("infotext", ("%s Active"):format(device_name))
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end,
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})
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end
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-------------------------------------
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-- Update networks on block change --
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-------------------------------------
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local function check_connections(pos)
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local machines = {}
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for name in pairs(holostorage.devices) do
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machines[name] = true
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end
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local connections = {}
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local positions = {
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{x=pos.x+1, y=pos.y, z=pos.z},
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{x=pos.x-1, y=pos.y, z=pos.z},
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{x=pos.x, y=pos.y+1, z=pos.z},
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{x=pos.x, y=pos.y-1, z=pos.z},
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{x=pos.x, y=pos.y, z=pos.z+1},
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{x=pos.x, y=pos.y, z=pos.z-1}}
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for _,connected_pos in pairs(positions) do
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local name = minetest.get_node(connected_pos).name
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if machines[name] or holostorage.network.is_network_conductor(name) or get_item_group(name, "holostorage_controller") then
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table.insert(connections,connected_pos)
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end
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end
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return connections
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end
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function holostorage.network.clear_networks(pos)
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local node = minetest.get_node(pos)
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local meta = minetest.get_meta(pos)
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local name = node.name
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local placed = name ~= "air"
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local positions = check_connections(pos)
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if #positions < 1 then return end
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local dead_end = #positions == 1
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for _,connected_pos in pairs(positions) do
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local net = holostorage.network.devices[minetest.hash_node_position(connected_pos)] or minetest.hash_node_position(connected_pos)
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if net and holostorage.network.networks[net] then
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if dead_end and placed then
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-- Dead end placed, add it to the network
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-- Get the network
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local node_at = minetest.get_node(positions[1])
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local network_id = holostorage.network.devices[minetest.hash_node_position(positions[1])] or minetest.hash_node_position(positions[1])
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if not network_id or not holostorage.network.networks[network_id] then
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-- We're evidently not on a network, nothing to add ourselves to
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return
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end
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local c_pos = minetest.get_position_from_hash(network_id)
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local network = holostorage.network.networks[network_id]
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-- Actually add it to the (cached) network
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-- This is similar to check_node_subp
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holostorage.network.devices[minetest.hash_node_position(pos)] = network_id
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pos.visited = 1
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if holostorage.network.is_network_conductor(name) then
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table.insert(network.all_nodes, pos)
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end
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if holostorage.devices[name] then
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meta:set_string("st_network", minetest.pos_to_string(c_pos))
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if get_item_group(name, "holostorage_controller") then
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table.insert(network.controllers, pos)
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elseif get_item_group(name, "holostorage_storage") then
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table.insert(network.st_nodes, pos)
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elseif holostorage.network.is_network_device(name) then
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table.insert(network.dv_nodes, pos)
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end
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end
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elseif dead_end and not placed then
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-- Dead end removed, remove it from the network
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-- Get the network
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local network_id = holostorage.network.devices[minetest.hash_node_position(positions[1])] or minetest.hash_node_position(positions[1])
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if not network_id or not holostorage.network.networks[network_id] then
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-- We're evidently not on a network, nothing to remove ourselves from
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return
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end
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local network = holostorage.network.networks[network_id]
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-- Search for and remove device
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holostorage.network.devices[minetest.hash_node_position(pos)] = nil
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for tblname,table in pairs(network) do
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for devicenum,device in pairs(table) do
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if device.x == pos.x
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and device.y == pos.y
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and device.z == pos.z then
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table[devicenum] = nil
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end
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end
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end
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else
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-- Not a dead end, so the whole network needs to be recalculated
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for _,v in pairs(holostorage.network.networks[net].all_nodes) do
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local pos1 = minetest.hash_node_position(v)
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holostorage.network.devices[pos1] = nil
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end
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holostorage.network.networks[net] = nil
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end
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end
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end
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end
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-- Timeout ABM
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-- Timeout for a node in case it was disconnected from the network
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-- A node must be touched by the station continuously in order to function
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local function controller_timeout_count(pos, tier)
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local meta = minetest.get_meta(pos)
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local timeout = meta:get_int("nw_timeout")
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if timeout <= 0 then
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return true
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else
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meta:set_int("nw_timeout", timeout - 1)
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return false
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end
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end
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function holostorage.network.register_abm_nodes()
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minetest.register_abm({
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label = "Devices: timeout check",
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nodenames = {"group:holostorage_device"},
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interval = 1,
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chance = 1,
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action = function(pos, node, active_object_count, active_object_count_wider)
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local meta = minetest.get_meta(pos)
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if holostorage.devices[node.name] and controller_timeout_count(pos) then
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local nodedef = minetest.registered_nodes[node.name]
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if nodedef and nodedef.holostorage_disabled_name then
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node.name = nodedef.holostorage_disabled_name
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minetest.swap_node(pos, node)
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elseif nodedef and nodedef.holostorage_on_disable then
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nodedef.holostorage_on_disable(pos, node)
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end
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if nodedef then
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local meta = minetest.get_meta(pos)
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meta:set_string("infotext", ("%s Has No Network"):format(nodedef.description))
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end
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end
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end,
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})
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end
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-----------------------
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-- Network Functions --
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-----------------------
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function holostorage.network.get_storage_devices(network_id)
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local network = holostorage.network.networks[network_id]
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if not network or not network.st_nodes then return {} end
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return network.st_nodes
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end
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function concat(t1,t2)
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for i=1,#t2 do
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t1[#t1+1] = t2[i]
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end
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return t1
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end
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function holostorage.network.get_storage_inventories(network_id)
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local storage_nodes = holostorage.network.get_storage_devices(network_id)
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local items = {}
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for _,pos in pairs(storage_nodes) do
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local stacks = holostorage.stack_list(pos)
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items = concat(items, stacks)
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end
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return items
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end
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function holostorage.network.insert_item(network_id, stack)
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local storage_nodes = holostorage.network.get_storage_devices(network_id)
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for _,pos in pairs(storage_nodes) do
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local success, leftover = holostorage.insert_stack(pos, stack)
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if success then
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return success, leftover
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end
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end
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return nil
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end
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function holostorage.network.take_item(network_id, stack)
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local storage_nodes = holostorage.network.get_storage_devices(network_id)
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for _,pos in pairs(storage_nodes) do
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local success, stacki = holostorage.take_stack(pos, stack)
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if success and stacki then
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if stacki:get_count() == stack:get_count() then
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return success, stacki
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else
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stack:set_count(stack:get_count() - stacki:get_count())
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return holostorage.network.take_item(network_id, stack)
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end
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end
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end
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return nil
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end
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