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https://github.com/pyrollo/display_modpack.git
synced 2024-08-19 20:24:06 +02:00
Code simplification and securisation
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parent
b8357a505c
commit
641dddfd51
@ -19,67 +19,37 @@
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local modname = minetest.get_current_modname()
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-- Context management functions (surely many improvements to do)
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local contexts = {}
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local function get_player_name(player)
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if type(player) == 'string' then return player end
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if type(player) == 'userdata' and player.get_player_name then
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return player:get_player_name()
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end
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minetest.log('warning', '['..modname..'] get_player_name could not identify player.')
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end
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minetest.register_on_leaveplayer(function(player)
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local playername = get_player_name(player)
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if playername then contexts[playername] = nil end
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if minetest.is_player(player) then
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contexts[player:get_player_name()] = nil
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end
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end)
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local function new_context(player, context)
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local playername = get_player_name(player)
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if playername then
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contexts[playername] = context
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contexts[playername].playername = playername
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return contexts[playername]
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end
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end
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local function get_context(player)
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local playername = get_player_name(player)
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if playername then
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if contexts[playername] then
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return contexts[playername]
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else
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minetest.log('warning', '['..modname..'] Context not found for player "'..playername..'"')
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end
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end
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end
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local function update_context(player, changes)
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local playername = get_player_name(player)
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if playername then
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if not contexts[playername] then
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contexts[playername] = { playername = playername }
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end
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for key, value in pairs(changes) do
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contexts[playername][key] = value
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end
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local function get_context(playername)
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if not contexts[playername] then
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contexts[playername] = { playername = playername }
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end
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return contexts[playername]
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end
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-- Show node formspec functions
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local function show_node_formspec(player, pos)
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local function show_node_formspec(playername, pos)
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local meta = minetest.get_meta(pos)
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local playername = get_player_name(player)
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-- Decontextualize formspec
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local fs = meta:get_string('formspec')
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if not fs then
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return
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end
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-- Change context and currrent_name references to nodemeta references
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fs = fs:gsub("current_name", "nodemeta:"..pos.x..","..pos.y..","..pos.z)
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fs = fs:gsub("context", "nodemeta:"..pos.x..","..pos.y..","..pos.z)
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-- Change context and currrent_name references to nodemeta references
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local nodemeta = string.format("nodemeta:%i,%i,%i", pos.x, pos.y ,pos.z)
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fs = fs:gsub("current_name", nodemeta)
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fs = fs:gsub("context", nodemeta)
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-- Change all ${} to their corresponding metadata values
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local s, e
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@ -92,44 +62,44 @@ local function show_node_formspec(player, pos)
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end
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until s == nil
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local context = get_context(playername)
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context.node_pos = pos
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-- Find node on_receive_fields
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local ndef = minetest.registered_nodes[minetest.get_node(pos).name]
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if ndef and ndef.on_receive_fields then
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update_context(player, { on_receive_fields = ndef.on_receive_fields } )
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context.on_receive_fields = ndef.on_receive_fields
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end
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update_context(player, { node_pos = pos } )
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-- Show formspec
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minetest.show_formspec(playername, modname..':context_formspec', fs)
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end
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minetest.register_on_player_receive_fields(function(player, formname, fields)
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if formname == modname..':context_formspec' then
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local context = get_context(player)
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if context == nil then return end
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if context.on_receive_fields then
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context.on_receive_fields(context.pos, '', fields, player)
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end
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if formname ~= modname..':context_formspec' then
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return
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end
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if not minetest.is_player(player) then
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return true
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end
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local context = get_context(player:get_player_name())
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if context.on_receive_fields then
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context.on_receive_fields(context.pos, '', fields, player)
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end
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return true
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end)
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-- Specific functions
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local function font_list_prepare()
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local list = {}
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local function show_font_formspec(playername)
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local context = get_context(playername)
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local fonts = {}
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for name, _ in pairs(font_api.registered_fonts) do
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list[#list+1] = name
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fonts[#fonts+1] = name
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end
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table.sort(list)
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return list
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end
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local function show_fs(player)
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local context = get_context(player)
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if context == nil then return end
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local fonts = font_list_prepare()
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table.sort(fonts)
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local fs = 'size[4,'..(#fonts + 0.8)..']'
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..default.gui_bg..default.gui_bg_img..default.gui_slots
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@ -146,26 +116,39 @@ local function show_fs(player)
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end
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minetest.register_on_player_receive_fields(function(player, formname, fields)
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if formname == modname..':font_list' then
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local context = get_context(player)
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if context == nil then return end
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if fields.quit == 'true' then
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for name, _ in pairs(font_api.registered_fonts) do
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if fields['font_'..name] then
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local meta = minetest.get_meta(context.pos)
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meta:set_string("font", name)
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display_api.update_entities(context.pos)
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end
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end
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-- Using after to avoid the "double close" bug
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minetest.after(0, show_node_formspec, player, context.pos)
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end
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if formname ~= modname..':font_list' then
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return
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end
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if not minetest.is_player(player) then
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return true
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end
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local playername = player:get_player_name()
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local context = get_context(playername)
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if minetest.is_protected(context.pos, playername) then
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return true
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end
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if fields.quit == 'true' then
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for name, _ in pairs(font_api.registered_fonts) do
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if fields['font_'..name] then
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local meta = minetest.get_meta(context.pos)
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meta:set_string("font", name)
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display_api.update_entities(context.pos)
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end
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end
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-- Using after to avoid the "double close" bug
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minetest.after(0, show_node_formspec, playername, context.pos)
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end
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return true
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end)
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function font_api.show_font_list(player, pos)
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new_context(player, { pos = pos })
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show_fs(player)
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function font_api.show_font_list_from_pos(player, pos)
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if minetest.is_player(player) then
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local context = get_context(player:get_player_name())
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context.pos = pos
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show_font_formspec(player:get_player_name())
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end
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end
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@ -35,7 +35,9 @@ function signs_api.set_display_text(pos, text, font)
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else
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meta:set_string("infotext", "")
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end
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meta:set_string("font", font)
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if font then
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meta:set_string("font", font)
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end
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display_api.update_entities(pos)
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end
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@ -45,39 +47,50 @@ function signs_api.set_formspec(pos)
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if ndef and ndef.display_entities
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and ndef.display_entities["signs:display_text"] then
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local maxlines = ndef.display_entities["signs:display_text"].maxlines
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local formspec, formheight
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local fs, x, y
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if maxlines == 1 then
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formspec =
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"field[0.5,0.7;5.5,1;display_text;"..F("Text")..
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";${display_text}]"
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formheight = 2
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fs = "field[0.5,0.7;5.5,1;display_text;"..F("Text")..
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";${display_text}]"
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y = 1.2
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else
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local extralabel = ""
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if maxlines then
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extralabel = F(" (first %s lines only)"):format(maxlines)
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end
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formspec =
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"textarea[0.5,0.7;5.5,2;display_text;"..F("Text")..""..
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fs = "textarea[0.5,0.7;5.5,2;display_text;"..F("Text")..""..
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extralabel..";${display_text}]"
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formheight = 3
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y = 2.4
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end
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formspec = formspec.."button_exit[2,"..formheight..";2,1;ok;"..
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x = 0.2
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fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_font.png;font;]"
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x = x + 0.4
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fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_left.png;left;]"
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x = x + 0.4
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fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_center.png;center;]"
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x = x + 0.4
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fs = fs.."image_button["..x..","..y..";0.5,0.5;font_api_right.png;right;]"
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y = y + 0.7
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fs = fs.."button_exit[2,"..y..";2,1;ok;"..
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F("Write").."]"
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formheight = formheight + 1
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formspec = "size[6,"..formheight.."]"..default.gui_bg..
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default.gui_bg_img..default.gui_slots..formspec
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y = y + 0.8
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fs = "size[6,"..y.."]"..default.gui_bg..
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default.gui_bg_img..default.gui_slots..fs
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meta:set_string("formspec", formspec)
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meta:set_string("formspec", fs)
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end
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end
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function signs_api.on_receive_fields(pos, formname, fields, player)
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if not minetest.is_protected(pos, player:get_player_name()) then
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if fields and (fields.ok or fields.key_enter) then
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signs_api.set_display_text(pos, fields.display_text, fields.font)
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signs_api.set_display_text(pos, fields.display_text)
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end
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if fields and (fields.font) then
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signs_api.set_display_text(pos, fields.display_text)
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font_api.show_font_list_from_pos(player, pos)
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end
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end
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end
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@ -184,6 +197,7 @@ function signs_api.register_sign(mod, name, model)
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on_rotate = signs_api.on_rotate,
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on_receive_fields = signs_api.on_receive_fields,
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on_punch = function(pos, node, player, pointed_thing)
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signs_api.set_formspec(pos)
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display_api.update_entities(pos)
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end,
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}
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@ -211,7 +225,3 @@ end
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-- Text entity for all signs
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display_api.register_display_entity("signs:display_text")
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