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Represent objects as YAML for brevity.

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This commit is contained in:
poikilos 2022-04-27 21:47:24 -04:00
parent 880ff9539b
commit 170e397961
1 changed files with 85 additions and 3 deletions
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88
init.lua
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@ -9,6 +9,71 @@
--
]]--
local function isArray(t)
-- Check if a table only contains sequential values.
-- by kikito
-- [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/)
-- answered May 21, 2011 at 7:22
-- edited Mar 2, 2014 at 17:13
-- <https://stackoverflow.com/a/6080274/4541104>
local i = 0
for _ in pairs(t) do
i = i + 1
if t[i] == nil then return false end
end
return true
end
function yamlSerializeTable(val, name, depth)
-- Make a table into a string.
-- (c) 2011 Henrik Ilgen, 2022 Poikilos
-- [CC BY-SA 3.0](https://creativecommons.org/licenses/by-sa/3.0/)
-- answered May 21 '11 at 12:14 Henrik Ilgen
-- edited May 13, 2019 at 9:10
-- on <https://stackoverflow.com/a/6081639>
-- Only the first argument is required.
-- Get the object back from the string via:
-- a = loadstring(s)()
depth = depth or 0
local tmp = string.rep(" ", depth)
if name then
if name == "METATOOLS_ARRAY_ELEMENT" then
tmp = tmp .. "- "
else
tmp = tmp .. name .. ": "
end
end
if type(val) == "table" then
if isArray(val) then
tmp = tmp .. "\n"
for k, v in pairs(val) do
tmp = tmp .. yamlSerializeTable(v, "METATOOLS_ARRAY_ELEMENT", depth + 1) .. "\n"
end
-- tmp = tmp .. string.rep(" ", depth)
else
tmp = tmp .. "\n" -- Newline is after <name>: for tables.
for k, v in pairs(val) do
tmp = tmp .. yamlSerializeTable(v, k, depth + 1) .. "\n"
end
-- tmp = tmp .. string.rep(" ", depth)
end
elseif type(val) == "number" then
tmp = tmp .. tostring(val)
elseif type(val) == "string" then
tmp = tmp .. string.format("%q", val)
elseif type(val) == "boolean" then
tmp = tmp .. (val and "true" or "false")
else
tmp = tmp .. "\"[inserializeable datatype:" .. type(val) .. "]\""
end
return tmp
end
function serializeTable(val, name, skipnewlines, depth)
-- Make a table into a string.
-- (c) 2011 Henrik Ilgen
@ -224,12 +289,12 @@ minetest.register_craftitem("metatools:stick",{
local pointedObjRef = pointed_thing.ref
-- local objAsStr = minetest.serialize(pointedObjRef)
-- ^ if param is pointed_thing or pointed_thing.ref, minetest.serialize causes "2021-11-14 16:45:39: ERROR[Main]: ServerError: AsyncErr: ServerThread::run Lua: Runtime error from mod 'metatools' in callback item_OnUse(): /home/owner/minetest/bin/../builtin/common/serialize.lua:151: Can't serialize data of type userdata"
-- - even serializeTable returns [inserializeable datatype:userdata]
-- - even yamlSerializeTable returns [inserializeable datatype:userdata]
-- unrelated note: minetest.serialize(nil) returns "return nil"
-- TODO:
-- Show ObjectRef armor groups (See <https://git.minetest.org/minetest/minetest/src/branch/master/doc/lua_api.txt#L1825>)
-- documentation for ObjectRef: <https://git.minetest.org/minetest/minetest/src/branch/master/doc/lua_api.txt#L1825>
local objAsStr = serializeTable(pointedObjRef)
local objAsStr = yamlSerializeTable(pointedObjRef)
minetest.chat_send_player(
username,
"[metatools::stick] You pointed at an object (" .. objAsStr .. ")"
@ -251,8 +316,25 @@ minetest.register_craftitem("metatools:stick",{
-- ^ This is the entity name such as namespace:sheep_black where namespace is a mod name.
minetest.chat_send_player(
username,
"[metatools::stick] LuaEntity: " .. serializeTable(luaEntity)
"[metatools::stick] LuaEntity: " .. yamlSerializeTable(luaEntity)
)
local animation = pointedObjRef:get_animation()
minetest.chat_send_player(
username,
"[metatools::stick] LuaEntity.ref:get_animation():" .. yamlSerializeTable(animation)
)
-- Hmm, animation.range, animation['range'] are nil
-- (same for other variables),
-- so API documentation is unclear:
-- `get_animation()`: returns `range`, `frame_speed`, `frame_blend` and
-- `frame_loop`.
-- yamlSerializeTable(animation) only gets:
-- y: 65
-- x: 35
-- minetest.chat_send_player(
-- username,
-- yamlSerializeTable(animation.range, " range")
-- )
-- else type is usually "node"
end
local nodepos = pointed_thing.under