381 lines
11 KiB
Lua
381 lines
11 KiB
Lua
--[[
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Tube Library
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============
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Copyright (C) 2017 Joachim Stolberg
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LGPLv2.1+
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See LICENSE.txt for more information
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distributor.lua:
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A more complex node acting as server and client.
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This node claims a position number and registers its message and items interface.
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The Distributor supports the following messages:
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- topic = "start", payload = nil
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- topic = "stop" , payload = nil
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]]--
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-- Return a key/value table with all items and the corresponding stack numbers
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local function invlist_content_as_kvlist(list)
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local res = {}
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for idx,items in ipairs(list) do
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local name = items:get_name()
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if name ~= "" then
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res[name] = idx
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end
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end
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return res
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end
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-- Return the total number of list entries
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local function invlist_num_entries(list)
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local res = 0
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for _,items in ipairs(list) do
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local name = items:get_name()
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if name ~= "" then
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res = res + items:get_count()
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end
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end
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return res
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end
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-- Return a flat table with all items
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local function invlist_entries_as_list(list)
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local res = {}
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for _,items in ipairs(list) do
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local name = items:get_name()
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local count = items:get_count()
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if name ~= "" then
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for i = 1,count do
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res[#res+1] = name
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end
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end
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end
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return res
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end
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local function AddToTbl(kvTbl, new_items)
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for _, l in ipairs(new_items) do
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kvTbl[l] = true
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end
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return kvTbl
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end
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local function distributor_formspec(running)
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return "size[8,8.5]"..
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default.gui_bg..
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default.gui_bg_img..
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default.gui_slots..
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"list[context;src;0,0;2,4;]"..
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"image[2,1.5;1,1;gui_furnace_arrow_bg.png^[transformR270]"..
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"button_exit[2,3;1,1;button;OK]"..
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"checkbox[3,0;running1;On;"..dump(running[1]).."]"..
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"checkbox[3,1;running2;On;"..dump(running[2]).."]"..
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"checkbox[3,2;running3;On;"..dump(running[3]).."]"..
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"checkbox[3,3;running4;On;"..dump(running[4]).."]"..
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"image[3.6,0;0.3,1;tubelib_red.png]"..
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"image[3.6,1;0.3,1;tubelib_green.png]"..
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"image[3.6,2;0.3,1;tubelib_blue.png]"..
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"image[3.6,3;0.3,1;tubelib_yellow.png]"..
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"list[context;red;4,0;4,1;]"..
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"list[context;green;4,1;4,1;]"..
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"list[context;blue;4,2;4,1;]"..
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"list[context;yellow;4,3;4,1;]"..
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"list[current_player;main;0,4.5;8,4;]"..
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"listring[context;src]"..
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"listring[current_player;main]"
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end
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local function allow_metadata_inventory_put(pos, listname, index, stack, player)
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local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
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local list = inv:get_list(listname)
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if minetest.is_protected(pos, player:get_player_name()) then
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return 0
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end
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if listname == "src" then
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return stack:get_count()
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elseif invlist_num_entries(list) < 4 then
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return 1
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else
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return 0
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end
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end
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local function allow_metadata_inventory_take(pos, listname, index, stack, player)
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if minetest.is_protected(pos, player:get_player_name()) then
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return 0
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end
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return stack:get_count()
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end
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local function allow_metadata_inventory_move(pos, from_list, from_index, to_list, to_index, count, player)
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local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
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local stack = inv:get_stack(from_list, from_index)
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return allow_metadata_inventory_put(pos, to_list, to_index, stack, player)
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end
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local SlotColors = {"red", "green", "blue", "yellow"}
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local Num2Ascii = {"F", "L", "B", "R"} -- color to side translation
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local FilterCache = {} -- local cache for filter settings
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local function filter_settings(pos)
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local hash = minetest.hash_node_position(pos)
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local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
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local facedir = meta:get_int("facedir")
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local running = minetest.deserialize(meta:get_string("running"))
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local kvFilterItemNames = {} -- {<item:name> = true,...}
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local kvSide2ItemNames = {} -- {"F" = {<item:name>,...},...}
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-- collect all filter settings
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for idx,slot in ipairs(SlotColors) do
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local side = Num2Ascii[idx]
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if running[idx] == true then
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local list = inv:get_list(slot)
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local filter = invlist_entries_as_list(list)
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AddToTbl(kvFilterItemNames, filter)
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kvSide2ItemNames[side] = filter
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end
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end
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FilterCache[hash] = {
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kvFilterItemNames = kvFilterItemNames,
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kvSide2ItemNames = kvSide2ItemNames
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}
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end
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local function start_the_machine(pos)
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local node = minetest.get_node(pos)
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node.name = "tubelib:distributor_active"
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minetest.swap_node(pos, node)
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minetest.get_node_timer(pos):start(2)
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local meta = minetest.get_meta(pos)
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local number = meta:get_string("number")
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meta:set_string("infotext", "Tubelib Distributor "..number..": running")
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end
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local function stop_the_machine(pos)
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local node = minetest.get_node(pos)
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node.name = "tubelib:distributor"
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minetest.swap_node(pos, node)
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minetest.get_node_timer(pos):stop()
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local meta = minetest.get_meta(pos)
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local number = meta:get_string("number")
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meta:set_string("infotext", "Tubelib Distributor "..number..": stopped")
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end
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-- move items to the output slots
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local function keep_running(pos, elapsed)
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local meta = minetest.get_meta(pos)
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local facedir = meta:get_int("facedir")
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local slot_idx = meta:get_int("slot_idx") or 1
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meta:set_int("slot_idx", (slot_idx + 1) % 4)
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local side = Num2Ascii[slot_idx+1]
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local listname = SlotColors[slot_idx+1]
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local inv = meta:get_inventory()
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local list = inv:get_list("src")
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local kvSrc = invlist_content_as_kvlist(list)
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-- calculate the filter settings only once
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local hash = minetest.hash_node_position(pos)
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if FilterCache[hash] == nil then
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filter_settings(pos)
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end
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-- read data from Cache
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-- all filter items as key/value {<item:name> = true,...}
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local kvFilterItemNames = FilterCache[hash].kvFilterItemNames
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-- filter items of one slot as list {<item:name>,...}
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local names = FilterCache[hash].kvSide2ItemNames[side]
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if names == nil then
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-- filter closed
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return true
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end
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-- move items from configured filters to the output
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if next(names) then
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for _,name in ipairs(names) do
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if kvSrc[name] then
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local item = tubelib.get_this_item(inv, "src", kvSrc[name]) -- <<=== tubelib
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if item then
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if not tubelib.push_items(pos, facedir, side, item) then -- <<=== tubelib
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tubelib.put_item(inv, "src", item)
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end
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end
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end
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end
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end
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-- move additional items from unconfigured filters to the output
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if next(names) == nil then
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for name,_ in pairs(kvSrc) do
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if kvFilterItemNames[name] == nil then -- not in the filter so far?
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local item = tubelib.get_this_item(inv, "src", kvSrc[name]) -- <<=== tubelib
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if item then
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if not tubelib.push_items(pos, facedir, side, item) then -- <<=== tubelib
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tubelib.put_item(inv, "src", item)
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end
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end
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end
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end
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end
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return true
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end
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local function on_receive_fields(pos, formname, fields, player)
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if minetest.is_protected(pos, player:get_player_name()) then
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return
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end
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local meta = minetest.get_meta(pos)
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local running = minetest.deserialize(meta:get_string("running"))
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if fields.running1 ~= nil then
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running[1] = fields.running1 == "true"
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elseif fields.running2 ~= nil then
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running[2] = fields.running2 == "true"
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elseif fields.running3 ~= nil then
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running[3] = fields.running3 == "true"
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elseif fields.running4 ~= nil then
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running[4] = fields.running4 == "true"
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end
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meta:set_string("running", minetest.serialize(running))
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meta:set_string("formspec", distributor_formspec(running))
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if fields.button ~= nil then
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filter_settings(pos)
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if running[1] or running[2] or running[3] or running[4] then
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start_the_machine(pos)
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else
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stop_the_machine(pos)
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end
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end
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end
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minetest.register_node("tubelib:distributor", {
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description = "Tubelib Distributor",
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tiles = {
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-- up, down, right, left, back, front
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'tubelib_distributor.png',
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'tubelib_distributor.png',
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'tubelib_distributor_yellow.png',
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'tubelib_distributor_green.png',
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"tubelib_distributor_red.png",
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"tubelib_distributor_blue.png",
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},
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after_place_node = function(pos, placer)
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local number = tubelib.get_node_number(pos, "tubelib:distributor") -- <<=== tubelib
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local meta = minetest.get_meta(pos)
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local facedir = minetest.dir_to_facedir(placer:get_look_dir(), false)
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local placer_name = placer:get_player_name()
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local running = {false,false,false,false}
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meta:set_string("infotext", "Tubelib Distributor "..number..": stopped")
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meta:set_string("formspec", distributor_formspec(running))
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meta:set_string("running", minetest.serialize(running))
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meta:set_string("number", number)
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meta:set_int("facedir", facedir)
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local inv = meta:get_inventory()
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inv:set_size('src', 8)
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inv:set_size('yellow', 4)
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inv:set_size('green', 4)
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inv:set_size('red', 4)
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inv:set_size('blue', 4)
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end,
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on_receive_fields = on_receive_fields,
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on_dig = function(pos, node, puncher, pointed_thing)
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if minetest.is_protected(pos, puncher:get_player_name()) then
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return
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end
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local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
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if inv:is_empty("src") then
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minetest.node_dig(pos, node, puncher, pointed_thing)
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tubelib.remove_node(pos) -- <<=== tubelib
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end
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end,
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allow_metadata_inventory_put = allow_metadata_inventory_put,
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allow_metadata_inventory_take = allow_metadata_inventory_take,
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allow_metadata_inventory_move = allow_metadata_inventory_move,
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paramtype2 = "facedir",
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groups = {cracky=1},
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is_ground_content = false,
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})
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minetest.register_node("tubelib:distributor_active", {
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description = "Tubelib Distributor",
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tiles = {
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-- up, down, right, left, back, front
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{
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image = "tubelib_distributor_active.png",
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backface_culling = false,
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animation = {
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type = "vertical_frames",
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aspect_w = 32,
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aspect_h = 32,
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length = 2.0,
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},
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},
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'tubelib_distributor.png',
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'tubelib_distributor_yellow.png',
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'tubelib_distributor_green.png',
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"tubelib_distributor_red.png",
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"tubelib_distributor_blue.png",
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},
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on_receive_fields = on_receive_fields,
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allow_metadata_inventory_put = allow_metadata_inventory_put,
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allow_metadata_inventory_take = allow_metadata_inventory_take,
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allow_metadata_inventory_move = allow_metadata_inventory_move,
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on_timer = keep_running,
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paramtype2 = "facedir",
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groups = {crumbly=0, not_in_creative_inventory=1},
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is_ground_content = false,
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})
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minetest.register_craft({
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output = "tubelib:distributor 2",
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recipe = {
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{"group:wood", "default:steel_ingot", "group:wood"},
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{"tubelib:tube1", "default:mese_crystal", "tubelib:tube1"},
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{"group:wood", "default:steel_ingot", "group:wood"},
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},
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})
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--------------------------------------------------------------- tubelib
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tubelib.register_node("tubelib:distributor", {"tubelib:distributor_active"}, {
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on_pull_item = function(pos)
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local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
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return tubelib.get_item(inv, "src")
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end,
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on_push_item = function(pos, item)
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local meta = minetest.get_meta(pos)
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local inv = meta:get_inventory()
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return tubelib.put_item(inv, "src", item)
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end,
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on_recv_message = function(pos, topic, payload)
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if topic == "start" then
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start_the_machine(pos)
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elseif topic == "stop" then
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stop_the_machine(pos)
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end
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end,
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})
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--------------------------------------------------------------- tubelib
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