121 lines
5.4 KiB
Lua
121 lines
5.4 KiB
Lua
local wea_c = worldeditadditions_core
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local node_id_air = minetest.get_content_id("air")
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local node_id_ignore = minetest.get_content_id("ignore")
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--- Determines whether the given node/content id is an airlike node or not.
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-- It is recommended that the result of this function be cached.
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-- @param id number The content/node id to check.
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-- @return bool Whether the given node/content id is an airlike node or not.
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function wea_c.is_airlike(id)
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-- Do a fast check against air and ignore
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if id == node_id_air then
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return true
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elseif id == node_id_ignore then -- ignore = not loaded yet IIRC (so it could be anything)
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return false
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end
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-- If the node isn't registered, then it might not be an air node
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if not minetest.registered_nodes[id] then return false end
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if minetest.registered_nodes[id].sunlight_propagates == true then
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return true
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end
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-- Check for membership of the airlike group
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local name = minetest.get_name_from_content_id(id)
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local airlike_value = minetest.get_item_group(name, "airlike")
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if airlike_value ~= nil and airlike_value > 0 then
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return true
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end
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-- Just in case
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if wea_c.str_starts(name, "wielded_light") then
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return true
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end
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-- Just in case
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return false
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end
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--- Determines whether the given node/content id is a liquid-ish node or not.
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-- It is recommended that the result of this function be cached.
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-- @param id number The content/node id to check.
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-- @return bool Whether the given node/content id is a liquid-ish node or not.
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function wea_c.is_liquidlike(id)
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-- print("[is_liquidlike]")
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if id == node_id_ignore then return false end
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local node_name = minetest.get_name_from_content_id(id)
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if node_name == nil or not minetest.registered_nodes[node_name] then return false end
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local liquidtype = minetest.registered_nodes[node_name].liquidtype
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-- print("[is_liquidlike]", "id", id, "name", node_name, "liquidtype", liquidtype)
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if liquidtype == nil or liquidtype == "none" then return false end
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-- If it's not none, then it has to be a liquid as the only other values are source and flowing
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return true
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end
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--- Determines whether the given node/content id is a sapling or not.
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-- Nodes with the "sapling" group are considered saplings.
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-- It is recommended that the result of this function be cached.
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-- @param id number The content/node id to check.
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-- @return bool Whether the given node/content id is a sapling or not.
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function wea_c.is_sapling(id)
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local node_name = minetest.get_name_from_content_id(id)
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return minetest.get_item_group(node_name, "sapling") ~= 0
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end
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-- ███████ █████ ██████ ██ ██ ███ ██ ██████
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-- ██ ██ ██ ██ ██ ██ ██ ████ ██ ██
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-- ███████ ███████ ██████ ██ ██ ██ ██ ██ ██ ███
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ███████ ██ ██ ██ ███████ ██ ██ ████ ██████
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--
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-- █████ ██ ██ █████ ███████ ███████ ███████
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ███████ ██ ██ ███████ ███████ █████ ███████
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ██ ██ ███████ ██ ██ ██ ███████ ███████ ███████
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local sapling_aliases = {}
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--- Register a new sapling alias.
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-- @param sapling_node_name string The canonical name of the sapling.
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-- @param alias string The alias name of the sapling.
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-- @returns bool[,string] Whether the alias registration was successful or not. If false, then an error message as a string is also returned as the second value.
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function wea_c.register_sapling_alias(sapling_node_name, alias)
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if sapling_aliases[sapling_node_name] ~= nil then
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return false, "Error: An alias against the node name '"..sapling_node_name.."' already exists."
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end
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sapling_aliases[alias] = sapling_node_name
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return true
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end
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--- Convenience function to register many sapling aliases at once.
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-- @param tbl [string, string][] A list of tables containing exactly 2 strings in the form { sapling_node_name, alias }.
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-- @returns bool[,string] Whether the alias registrations were successful or not. If false, then an error message as a string is also returned as the second value.
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function wea_c.register_sapling_alias_many(tbl)
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for i, next in ipairs(tbl) do
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local success, msg = wea_c.register_sapling_alias(
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next[1],
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next[2]
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)
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if not success then return success, msg end
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end
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return true
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end
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--- Returns the current key ⇒ value table of sapling names and aliases.
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-- @return table
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function wea_c.get_all_sapling_aliases()
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return sapling_aliases
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end
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--- Attempts to normalise a sapling name using the currently registered aliases.
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-- @param in_name string The sapling name to normalise
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-- @param return_nil_on_failure bool Whether to return nil if we fail to resolve the sapling name with an alias, or return the original node name instead (default: false).
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function wea_c.normalise_saplingname(in_name, return_nil_on_failure)
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if sapling_aliases[in_name] then return sapling_aliases[in_name]
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elseif return_nil_on_failure then return nil
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else return in_name end
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end
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