diff options
Diffstat (limited to 'builtin/misc_register.lua')
| -rw-r--r-- | builtin/misc_register.lua | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/builtin/misc_register.lua b/builtin/misc_register.lua new file mode 100644 index 000000000..351a075e4 --- /dev/null +++ b/builtin/misc_register.lua @@ -0,0 +1,314 @@ +-- Minetest: builtin/misc_register.lua + +-- +-- Make raw registration functions inaccessible to anyone except this file +-- + +local register_item_raw = minetest.register_item_raw +minetest.register_item_raw = nil + +local register_alias_raw = minetest.register_alias_raw +minetest.register_item_raw = nil + +-- +-- Item / entity / ABM registration functions +-- + +minetest.registered_abms = {} +minetest.registered_entities = {} +minetest.registered_items = {} +minetest.registered_nodes = {} +minetest.registered_craftitems = {} +minetest.registered_tools = {} +minetest.registered_aliases = {} + +-- For tables that are indexed by item name: +-- If table[X] does not exist, default to table[minetest.registered_aliases[X]] +local function set_alias_metatable(table) + setmetatable(table, { + __index = function(name) + return rawget(table, minetest.registered_aliases[name]) + end + }) +end +set_alias_metatable(minetest.registered_items) +set_alias_metatable(minetest.registered_nodes) +set_alias_metatable(minetest.registered_craftitems) +set_alias_metatable(minetest.registered_tools) + +-- These item names may not be used because they would interfere +-- with legacy itemstrings +local forbidden_item_names = { + MaterialItem = true, + MaterialItem2 = true, + MaterialItem3 = true, + NodeItem = true, + node = true, + CraftItem = true, + craft = true, + MBOItem = true, + ToolItem = true, + tool = true, +} + +local function check_modname_prefix(name) + if name:sub(1,1) == ":" then + -- Escape the modname prefix enforcement mechanism + return name:sub(2) + else + -- Modname prefix enforcement + local expected_prefix = minetest.get_current_modname() .. ":" + if name:sub(1, #expected_prefix) ~= expected_prefix then + error("Name " .. name .. " does not follow naming conventions: " .. + "\"modname:\" or \":\" prefix required") + end + local subname = name:sub(#expected_prefix+1) + if subname:find("[^abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]") then + error("Name " .. name .. " does not follow naming conventions: " .. + "contains unallowed characters") + end + return name + end +end + +function minetest.register_abm(spec) + -- Add to minetest.registered_abms + minetest.registered_abms[#minetest.registered_abms+1] = spec +end + +function minetest.register_entity(name, prototype) + -- Check name + if name == nil then + error("Unable to register entity: Name is nil") + end + name = check_modname_prefix(tostring(name)) + + prototype.name = name + prototype.__index = prototype -- so that it can be used as a metatable + + -- Add to minetest.registered_entities + minetest.registered_entities[name] = prototype +end + +function minetest.register_item(name, itemdef) + -- Check name + if name == nil then + error("Unable to register item: Name is nil") + end + name = check_modname_prefix(tostring(name)) + if forbidden_item_names[name] then + error("Unable to register item: Name is forbidden: " .. name) + end + itemdef.name = name + + -- Apply defaults and add to registered_* table + if itemdef.type == "node" then + setmetatable(itemdef, {__index = minetest.nodedef_default}) + minetest.registered_nodes[itemdef.name] = itemdef + elseif itemdef.type == "craft" then + setmetatable(itemdef, {__index = minetest.craftitemdef_default}) + minetest.registered_craftitems[itemdef.name] = itemdef + elseif itemdef.type == "tool" then + setmetatable(itemdef, {__index = minetest.tooldef_default}) + minetest.registered_tools[itemdef.name] = itemdef + elseif itemdef.type == "none" then + setmetatable(itemdef, {__index = minetest.noneitemdef_default}) + else + error("Unable to register item: Type is invalid: " .. dump(itemdef)) + end + + -- Flowing liquid uses param2 + if itemdef.type == "node" and itemdef.liquidtype == "flowing" then + itemdef.paramtype2 = "flowingliquid" + end + + -- BEGIN Legacy stuff + if itemdef.cookresult_itemstring ~= nil and itemdef.cookresult_itemstring ~= "" then + minetest.register_craft({ + type="cooking", + output=itemdef.cookresult_itemstring, + recipe=itemdef.name, + cooktime=itemdef.furnace_cooktime + }) + end + if itemdef.furnace_burntime ~= nil and itemdef.furnace_burntime >= 0 then + minetest.register_craft({ + type="fuel", + recipe=itemdef.name, + burntime=itemdef.furnace_burntime + }) + end + -- END Legacy stuff + + -- Disable all further modifications + getmetatable(itemdef).__newindex = {} + + --minetest.log("Registering item: " .. itemdef.name) + minetest.registered_items[itemdef.name] = itemdef + minetest.registered_aliases[itemdef.name] = nil + register_item_raw(itemdef) +end + +function minetest.register_node(name, nodedef) + nodedef.type = "node" + minetest.register_item(name, nodedef) +end + +function minetest.register_craftitem(name, craftitemdef) + craftitemdef.type = "craft" + + -- BEGIN Legacy stuff + if craftitemdef.inventory_image == nil and craftitemdef.image ~= nil then + craftitemdef.inventory_image = craftitemdef.image + end + -- END Legacy stuff + + minetest.register_item(name, craftitemdef) +end + +function minetest.register_tool(name, tooldef) + tooldef.type = "tool" + tooldef.stack_max = 1 + + -- BEGIN Legacy stuff + if tooldef.inventory_image == nil and tooldef.image ~= nil then + tooldef.inventory_image = tooldef.image + end + if tooldef.tool_capabilities == nil and + (tooldef.full_punch_interval ~= nil or + tooldef.basetime ~= nil or + tooldef.dt_weight ~= nil or + tooldef.dt_crackiness ~= nil or + tooldef.dt_crumbliness ~= nil or + tooldef.dt_cuttability ~= nil or + tooldef.basedurability ~= nil or + tooldef.dd_weight ~= nil or + tooldef.dd_crackiness ~= nil or + tooldef.dd_crumbliness ~= nil or + tooldef.dd_cuttability ~= nil) then + tooldef.tool_capabilities = { + full_punch_interval = tooldef.full_punch_interval, + basetime = tooldef.basetime, + dt_weight = tooldef.dt_weight, + dt_crackiness = tooldef.dt_crackiness, + dt_crumbliness = tooldef.dt_crumbliness, + dt_cuttability = tooldef.dt_cuttability, + basedurability = tooldef.basedurability, + dd_weight = tooldef.dd_weight, + dd_crackiness = tooldef.dd_crackiness, + dd_crumbliness = tooldef.dd_crumbliness, + dd_cuttability = tooldef.dd_cuttability, + } + end + -- END Legacy stuff + + minetest.register_item(name, tooldef) +end + +function minetest.register_alias(name, convert_to) + if forbidden_item_names[name] then + error("Unable to register alias: Name is forbidden: " .. name) + end + if minetest.registered_items[name] ~= nil then + minetest.log("WARNING: Not registering alias, item with same name" .. + " is already defined: " .. name .. " -> " .. convert_to) + else + --minetest.log("Registering alias: " .. name .. " -> " .. convert_to) + minetest.registered_aliases[name] = convert_to + register_alias_raw(name, convert_to) + end +end + +-- Alias the forbidden item names to "" so they can't be +-- created via itemstrings (e.g. /give) +local name +for name in pairs(forbidden_item_names) do + minetest.registered_aliases[name] = "" + register_alias_raw(name, "") +end + + +-- Deprecated: +-- Aliases for minetest.register_alias (how ironic...) +--minetest.alias_node = minetest.register_alias +--minetest.alias_tool = minetest.register_alias +--minetest.alias_craftitem = minetest.register_alias + +-- +-- Built-in node definitions. Also defined in C. +-- + +minetest.register_item(":unknown", { + type = "none", + description = "Unknown Item", + inventory_image = "unknown_item.png", + on_place = minetest.item_place, + on_drop = minetest.item_drop, +}) + +minetest.register_node(":air", { + description = "Air (you hacker you!)", + inventory_image = "unknown_block.png", + wield_image = "unknown_block.png", + drawtype = "airlike", + paramtype = "light", + sunlight_propagates = true, + walkable = false, + pointable = false, + diggable = false, + buildable_to = true, + air_equivalent = true, +}) + +minetest.register_node(":ignore", { + description = "Ignore (you hacker you!)", + inventory_image = "unknown_block.png", + wield_image = "unknown_block.png", + drawtype = "airlike", + paramtype = "none", + sunlight_propagates = false, + walkable = false, + pointable = false, + diggable = false, + buildable_to = true, -- A way to remove accidentally placed ignores + air_equivalent = true, +}) + +-- The hand (bare definition) +minetest.register_item(":", { + type = "none", +}) + +-- +-- Creative inventory +-- + +minetest.creative_inventory = {} + +minetest.add_to_creative_inventory = function(itemstring) + table.insert(minetest.creative_inventory, itemstring) +end + +-- +-- Callback registration +-- + +local function make_registration() + local t = {} + local registerfunc = function(func) table.insert(t, func) end + return t, registerfunc +end + +minetest.registered_on_chat_messages, minetest.register_on_chat_message = make_registration() +minetest.registered_globalsteps, minetest.register_globalstep = make_registration() +minetest.registered_on_placenodes, minetest.register_on_placenode = make_registration() +minetest.registered_on_dignodes, minetest.register_on_dignode = make_registration() +minetest.registered_on_punchnodes, minetest.register_on_punchnode = make_registration() +minetest.registered_on_generateds, minetest.register_on_generated = make_registration() +minetest.registered_on_newplayers, minetest.register_on_newplayer = make_registration() +minetest.registered_on_dieplayers, minetest.register_on_dieplayer = make_registration() +minetest.registered_on_respawnplayers, minetest.register_on_respawnplayer = make_registration() +minetest.registered_on_joinplayers, minetest.register_on_joinplayer = make_registration() +minetest.registered_on_leaveplayers, minetest.register_on_leaveplayer = make_registration() + + |