Module:Test

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Revision as of 01:41, 10 April 2021 by Dr. Strangelove (talk | contribs) (update of an update)
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This module is used for development.

Purpose

This module is used to query information from the uploaded and parsed game files.

Its main purpose is to populate the infoboxes.

Usage

A note on the order of named parameters. All of the parameters that look like ...=... are called named parameters and their order is not important (this is true for all templates).

query

{{#invoke:Test|query|<def ID>[|...|][|tag|][|sibling=...]}}

The work-horse. Output varies based on use:

If only the <def ID> parameter is set, it will show the whole Def in the log.
If simple values are queried it will return them.
If lists are queried it will return nothing but call {{#vardefine}} on all the simple values within it. What got defined can be seen in the page's log.

Named parameters:

<def ID>
This parameter identifies the Def so it is mandatory. It can take two forms, if both are defined then defName takes preference.
defName=<defName>
<defName> (case sensitive) should be replaced with the actual defName of a Def.
label=<label>
<label> (case insensitive) should be replaced with the actual label of a Def.
[sibling=...] (optional) (case sensitive)
Allows querying for something if we know its sibling's value (works only for values at the moment).

Anonymous parameters:

[|...|] (optional) (case sensitive)
Anonymous paramaters before the last one ([tag]) are here to help uniquely identify it. If the [tag] is already unique within a Def tree, then these additional parameters are not needed.
[|tag|] (optional) (case sensitive)
The final anonymous parameter defines what is to be queried.

count

{{#invoke:Test|count|<def ID>[|...|][|tag|][|sibling=...]}}

Parameters are the same as for query. It's basically a wrapped up query that behaves a bit differently.

The difference is in how it handles lists. If a list is queried, unlike query, it will return the length of the list.

How-to

Take a look at a Def

{{#invoke:Test|query|label=desert}}

Lua error at line 255: Def not found.

Data is in the log.

Retrieve a simple value

{{#invoke:Test|query|defName=Caribou|description}}

A large member of the deer family, well-adapted to life in cold climates. Caribou can be milked, but refuse to carry packs.

Dealing with lists

{{#invoke:Test|query|defName=Mech_Scyther|tools}}

Table returned. Check the log.

When a list is retrieved there will be no output but the log will contain a list of defined variables.

For convenience the list is reprinted here: 

tools_1_linkedBodyPartsGroup = LeftBlade
tools_1_cooldownTime = 2
tools_1_label = left blade
tools_1_DPS = 10
tools_1_power = 20
tools_1_capacities_1 = Cut
tools_1_capacities_2 = Stab
tools_2_linkedBodyPartsGroup = RightBlade
tools_2_cooldownTime = 2
tools_2_label = right blade
tools_2_DPS = 10
tools_2_power = 20
tools_2_capacities_1 = Cut
tools_2_capacities_2 = Stab
tools_3_linkedBodyPartsGroup = HeadAttackTool
tools_3_capacities_1 = Blunt
tools_3_label = head
tools_3_DPS = 4.5
tools_3_chanceFactor = 0.2
tools_3_power = 9
tools_3_cooldownTime = 2

All of the above can be accessed with the use of {{#var:...}}.

{{#var:tools_1_DPS}}

DPS is not a normal member of this table but has been added with Lua. Let's call it a virtual field.

Retrieve something if a sibling is known

{{#invoke:Test|query|label=guinea pig|minAge|sibling=AnimalAdult}}

0 

-- redefine the print function to use mw.log
print = mw.log

---------------
-- load data --
---------------

-- wiki environment --

local Biomes = mw.loadData('Module:Test/data/biomes')
--local Buildings = mw.loadData('Module:Test/data/buildings')
local Races = mw.loadData('Module:Test/data/races')

-- dev environment --

--local Biomes = loadfile("./data/BiomeDefs.lua")()
--local Buildings = loadfile("./data/ThingDefs_Buildings.lua")()
--local Races = loadfile("./data/ThingDefs_Races.lua")()

-- aggregate the categories --

local data = {}
data["Biomes"] = Biomes
--data["Buildings"] = Buildings
data["Races"] = Races

------------------------
-- pretty print table --
------------------------

--[[ procedure: tprint ]]--

function tprint (tbl, indent)
  if not indent then indent = 0 end
  for k, v in pairs(tbl) do
    formatting = string.rep("  ", indent) .. k .. ": "
    if type(v) == "table" then
      print(formatting)
      tprint(v, indent+1)
    elseif type(v) == 'boolean' then
      print(formatting .. tostring(v))
    else
      print(formatting .. v)
    end
  end
end

-----------------------------
-- small utility functions --
-----------------------------

--[[ function: shallowcopy ]]--

function shallowcopy(original_table)
    local orig_type = type(original_table)
    local copy
    if orig_type == 'table' then
        copy = {}
        for orig_key, orig_value in pairs(original_table) do
            copy[orig_key] = orig_value
        end
    else -- number, string, boolean, etc
        copy = original_table
    end
    return copy
end

--[[ function: reverse_numeric_table ]]--

function reverse_numeric_table(tbl)
    local reversed_table = {}
    local length = #tbl
    for i,v in ipairs(tbl) do
        reversed_table[length + 1 - i] = v
    end
    return reversed_table
end

--[[ function: count ]]--

-- '#' operator seems to work for numerically indexed tables so it can be used instead
-- this count function counts all the keys (of any type)
local function count(tbl, key_type)
  local length = 0;
  for k,v in pairs(tbl) do
    if key_type then
      if type(k) == key_type then
        length = length + 1
      end
    else
      length = length + 1
    end
  end
  return length
end

--[[ function: find_key_name_of_value ]]--
local function find_key_name_of_value(value, tbl)
  for k,v in pairs(tbl) do
    if v == value then return k end
  end
end

--[[ function: search_table_recursive ]]--

-- returns the value found by first occurrence of a key within a table (recursive)
local function search_table_recursive(key, tbl)
  for k, v in pairs(tbl) do
    if k == key then return v
    elseif type(v) == "table" then
      local found = search_table_recursive(key, v)
      if found then return found end
    end
  end
end

--[[ function: find_parent_table ]]--

-- returns the parent table of an element specified by key, value (recursive)
local function find_parent_table(key, value, tbl)
  for k, v in pairs(tbl) do
    if k == key and v == value then return tbl
    elseif type(v) == "table" then
      local found = find_parent_table(key, value, v)
      if found then return found end
    end
  end
end

--[[ procedure: vardefine ]]--

local function vardefine(var_name, var_value)
  local fName = "vardefine"
  assert(var_name, string.format("bad argument #1 to '%s' (argument missing, name of variable to define)", fName))
  assert(var_name == "string", string.format("bad argument #1 to '%s' (string expected, got %s)", fName, type(var_name)))
  assert(var_value, string.format("bad argument #2 to '%s' (argument missing, value to assign to variable)", fName))
  assert(var_value == "string" or var_value == "number", string.format("bad argument #2 to '%s' (string or number expected, got %s)", fName, type(var_value)))

  frame:callParserFunction('#vardefine', var_name, var_value)
end

--[[ procedure: overwrite_first_table_with_second ]]--

local function overwrite_first_table_with_second(first_table, second_table, ignore_keys)
  ignore_keys = ignore_keys or {}

  for k,v in pairs(second_table) do
    local ignore = false

    for _, ignored_key in ipairs(ignore_keys) do
      if k == ignored_key then ignore = true end
    end

    if not ignore then
      if type(v) == "table" then
        if type(first_table[k]) == "table" then
          overwrite_first_table_with_second(first_table[k], v)
        else
          first_table[k] = {}
          overwrite_first_table_with_second(first_table[k], v)
        end
      else
        first_table[k] = v
      end
    end
  end
end

----------------------
-- dataset specific --
----------------------

--[[ function: find_def_table ]]--

local function find_def_table(def)
  -- hidden variables: data
  for k1,v1 in pairs(data) do
    if type(v1) == "table" then
      for k2,v2 in pairs(v1) do
        if k2 == def then return v2 end
      end
    end
  end
end

local function find_def_category_table(def)
  for k1,v1 in pairs(data) do
    if type(v1) == "table" then
      for k2,v2 in pairs(v1) do
        if k2 == def then return v1 end
      end
    end
  end
end

--[[ function: merge_def_with_parents ]]--

local function merge_def_with_parents(def, ignore_keys)
  -- hidden variables: ParentName and global data

  local def_table = find_def_table(def)
  local def_category_table = find_def_category_table(def)
  local parent_names = {}
  local parent_name = def_table["ParentName"]
  local parent_table = def_category_table[parent_name]

  while parent_name do
    table.insert(parent_names, parent_name)
    parent_name = parent_table["ParentName"]
    parent_table = def_category_table[parent_name]
  end

  local inheritance_chain = shallowcopy(reverse_numeric_table(parent_names))
  table.insert(inheritance_chain, def)

  local merged = {}
  local chain_length = #inheritance_chain
  for i,v in ipairs(inheritance_chain) do
    overwrite_first_table_with_second(merged, def_category_table[inheritance_chain[i]], ignore_keys)
  end

  return merged
end

--------------------------------
-- publicly exposed functions --
--------------------------------

local p = {}

function p.query(frame)
  local fName = "query"

  if not (frame.args["defName"] or frame.args["label"]) then
    assert(frame.args["defName"], string.format("bad argument to '%s' (missing named argument 'defName' or 'label' needed to find a Def)", fName))
  end

  local def_table
  local def_arg
  if frame.args["defName"] then
    def_table = find_def_table(frame.args["defName"])
    if def_table then
      def_arg = frame.args["defName"]
      def_table = merge_def_with_parents(frame.args["defName"], {"ParentName", "Abstract"})
    end
  end
  if not def_table then
    def_table = find_parent_table(find_key_name_of_value(frame.args["label"], frame.args), frame.args["label"], data["Races"])
    if def_table then
      def_arg = frame.args["label"]
      def_table = merge_def_with_parents(def_table["defName"], {"ParentName", "Abstract"})
    end
  end

  assert(def_table, "Def not found")

  local numbered_args_length = count(frame.args, "number")
  if numbered_args_length == 0 then
    tprint(def_table)
    return "Table returned. Check the log."
  else
    local filtered = def_table
    -- filtered is just a reference to def_table (not copied) so updates on filtered are updates on def_table

    for i=1, numbered_args_length do
      filtered = search_table_recursive(frame.args[i], filtered)
      assert(frame.args[i], string.format("bad argument to '%s' (missing numeric argument #%i)", fName, i))
      assert(filtered, string.format("'%s' not found in '%s'", frame.args[i], def_arg))
      if filtered then
        if (type(filtered) == "string" or type(filtered) == "number" or type(filtered) == "boolean") and (i < numbered_args_length) then
          error(string.format("too many numeric arguments to '%s' ('%s' already found in '%s')", fName, frame.args[i], def_arg))
        end
      else
        error(string.format("'%s' not found in '%s'", v, def_arg))
      end
    end
    
    if type(filtered) == "table" then
      tprint(filtered)
      return "Table returned. Check the log."
    else
      return filtered
    end

  end

end

-------------
-- logging --
-------------

--mw.log("Module:DefInfo:os.clock() " .. os.clock()*1000 .. " ms")
print("Module:DefInfo:os.clock() " .. os.clock()*1000 .. " ms")

return p
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