670 lines
16 KiB
Lua
670 lines
16 KiB
Lua
local _ENV = mkmodule('utils')
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local df = df
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-- Comparator function
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function compare(a,b)
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if a < b then
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return -1
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elseif a > b then
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return 1
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else
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return 0
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end
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end
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-- Sort strings; compare empty last
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function compare_name(a,b)
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if a == '' then
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if b == '' then
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return 0
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else
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return 1
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end
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elseif b == '' then
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return -1
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else
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return compare(a,b)
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end
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end
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-- Make a field comparator
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function compare_field(field,cmp)
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cmp = cmp or compare
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if field then
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return function (a,b)
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return cmp(a[field],b[field])
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end
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else
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return cmp
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end
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end
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-- Make a comparator of field vs key
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function compare_field_key(field,cmp)
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cmp = cmp or compare
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if field then
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return function (a,b)
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return cmp(a[field],b)
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end
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else
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return cmp
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end
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end
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function is_container(obj)
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return df.isvalid(obj) == 'ref' and obj._kind == 'container'
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end
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-- Make a sequence of numbers in 1..size
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function make_index_sequence(istart,iend)
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local index = {}
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for i=istart,iend do
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index[i-istart+1] = i
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end
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return index
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end
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--[[
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Sort items in data according to ordering.
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Each ordering spec is a table with possible fields:
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* key = function(value)
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Computes comparison key from a data value. Not called on nil.
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* key_table = function(data)
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Computes a key table from the data table in one go.
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* compare = function(a,b)
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Comparison function. Defaults to compare above.
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Called on non-nil keys; nil sorts last.
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* nil_first
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If true, nil keys are sorted first instead of last.
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* reverse
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If true, sort non-nil keys in descending order.
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Returns a table of integer indices into data.
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--]]
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function make_sort_order(data,ordering)
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-- Compute sort keys and comparators
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local keys = {}
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local cmps = {}
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local size = data.n or #data
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for i=1,#ordering do
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local order = ordering[i]
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if order.key_table then
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keys[i] = order.key_table(data)
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elseif order.key then
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local kt = {}
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local kf = order.key
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for j=1,size do
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if data[j] == nil then
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kt[j] = nil
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else
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kt[j] = kf(data[j])
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end
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end
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keys[i] = kt
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else
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keys[i] = data
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end
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cmps[i] = order.compare or compare
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end
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-- Make an order table
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local index = make_index_sequence(1,size)
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-- Sort the ordering table
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table.sort(index, function(ia,ib)
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for i=1,#keys do
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local ka = keys[i][ia]
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local kb = keys[i][ib]
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-- Sort nil keys to the end
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if ka == nil then
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if kb ~= nil then
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return ordering[i].nil_first
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end
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elseif kb == nil then
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return not ordering[i].nil_first
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else
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local cmpv = cmps[i](ka,kb)
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if ordering[i].reverse then
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cmpv = -cmpv
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end
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if cmpv < 0 then
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return true
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elseif cmpv > 0 then
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return false
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end
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end
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end
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return ia < ib -- this should ensure stable sort
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end)
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return index
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end
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--[[
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Iterate a 'list' structure, e.g. df.global.world.job_list
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--]]
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local function next_df_list(s,link)
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link = link.next
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if link then
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return link, link.item
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end
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end
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function listpairs(list)
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return next_df_list, nil, list
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end
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--[[
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Recursively assign data into a table.
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--]]
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function assign(tgt,src)
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if df.isvalid(tgt) == 'ref' then
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df.assign(tgt, src)
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elseif type(tgt) == 'table' then
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for k,v in pairs(src) do
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if type(v) == 'table' then
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local cv = tgt[k]
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if cv == nil then
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cv = {}
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tgt[k] = cv
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end
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assign(cv, v)
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else
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tgt[k] = v
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end
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end
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else
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error('Invalid assign target type: '..tostring(tgt))
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end
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return tgt
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end
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local function copy_field(obj,k,v,deep)
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if v == nil then
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return NULL
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end
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if deep then
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local field = obj:_field(k)
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if field == v then
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return clone(v,deep)
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end
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end
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return v
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end
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-- Copy the object as lua data structures.
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function clone(obj,deep)
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if type(obj) == 'table' then
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if deep then
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return assign({},obj)
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else
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return copyall(obj)
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end
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elseif df.isvalid(obj) == 'ref' then
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local kind = obj._kind
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if kind == 'primitive' then
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return obj.value
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elseif kind == 'bitfield' then
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local rv = {}
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for k,v in pairs(obj) do
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rv[k] = v
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end
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return rv
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elseif kind == 'container' then
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local rv = {}
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for k,v in ipairs(obj) do
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rv[k+1] = copy_field(obj,k,v,deep)
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end
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return rv
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else -- struct
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local rv = {}
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for k,v in pairs(obj) do
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rv[k] = copy_field(obj,k,v,deep)
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end
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return rv
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end
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else
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return obj
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end
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end
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local function get_default(default,key,base)
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if type(default) == 'table' then
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local dv = default[key]
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if dv == nil then
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dv = default._default
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end
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if dv == nil then
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dv = base
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end
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return dv
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else
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return default
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end
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end
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-- Copy the object as lua data structures, skipping values matching defaults.
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function clone_with_default(obj,default,force)
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local rv = nil
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local function setrv(k,v)
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if v ~= nil then
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if rv == nil then
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rv = {}
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end
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rv[k] = v
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end
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end
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if default == nil then
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return nil
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elseif type(obj) == 'table' then
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for k,v in pairs(obj) do
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setrv(k, clone_with_default(v, get_default(default,k)))
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end
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elseif df.isvalid(obj) == 'ref' then
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local kind = obj._kind
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if kind == 'primitive' then
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return clone_with_default(obj.value,default,force)
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elseif kind == 'bitfield' then
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for k,v in pairs(obj) do
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setrv(k, clone_with_default(v, get_default(default,k,false)))
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end
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elseif kind == 'container' then
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for k,v in ipairs(obj) do
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setrv(k+1, clone_with_default(v, default, true))
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end
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else -- struct
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for k,v in pairs(obj) do
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setrv(k, clone_with_default(v, get_default(default,k)))
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end
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end
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elseif obj == default and not force then
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return nil
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elseif obj == nil then
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return NULL
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else
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return obj
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end
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if force and rv == nil then
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rv = {}
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end
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return rv
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end
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-- Parse an integer value into a bitfield table
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function parse_bitfield_int(value, type_ref)
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if value == 0 then
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return nil
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end
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local res = {}
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for i,v in ipairs(type_ref) do
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if bit32.extract(value, i) ~= 0 then
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res[v] = true
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end
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end
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return res
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end
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-- List the enabled flag names in the bitfield table
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function list_bitfield_flags(bitfield, list)
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list = list or {}
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if bitfield then
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for name,val in pairs(bitfield) do
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if val then
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table.insert(list, name)
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end
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end
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end
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return list
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end
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-- Sort a vector or lua table
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function sort_vector(vector,field,cmp)
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local fcmp = compare_field(field,cmp)
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local scmp = function(a,b)
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return fcmp(a,b) < 0
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end
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if df.isvalid(vector) then
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if vector._kind ~= 'container' then
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error('Container expected: '..tostring(vector))
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end
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local items = clone(vector, true)
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table.sort(items, scmp)
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vector:assign(items)
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else
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table.sort(vector, scmp)
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end
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return vector
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end
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-- Linear search
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function linear_index(vector,key,field)
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local min,max
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if df.isvalid(vector) then
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min,max = 0,#vector-1
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else
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min,max = 1,#vector
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end
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if field then
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for i=min,max do
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local obj = vector[i]
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if obj[field] == key then
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return i, obj
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end
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end
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else
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for i=min,max do
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local obj = vector[i]
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if obj == key then
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return i, obj
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end
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end
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end
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return nil
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end
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-- Binary search in a vector or lua table
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function binsearch(vector,key,field,cmp,min,max)
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if not(min and max) then
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if df.isvalid(vector) then
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min = -1
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max = #vector
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else
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min = 0
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max = #vector+1
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end
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end
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local mf = math.floor
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local fcmp = compare_field_key(field,cmp)
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while true do
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local mid = mf((min+max)/2)
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if mid <= min then
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return nil, false, max
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end
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local item = vector[mid]
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local cv = fcmp(item, key)
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if cv == 0 then
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return item, true, mid
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elseif cv < 0 then
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min = mid
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else
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max = mid
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end
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end
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end
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-- Binary search and insert
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function insert_sorted(vector,item,field,cmp)
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local key = item
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if field and item then
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key = item[field]
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end
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local cur,found,pos = binsearch(vector,key,field,cmp)
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if found then
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return false,cur,pos
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else
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if df.isvalid(vector) then
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vector:insert(pos, item)
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else
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table.insert(vector, pos, item)
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end
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return true,vector[pos],pos
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end
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end
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-- Binary search, then insert or overwrite
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function insert_or_update(vector,item,field,cmp)
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local added,cur,pos = insert_sorted(vector,item,field,cmp)
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if not added then
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vector[pos] = item
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cur = vector[pos]
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end
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return added,cur,pos
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end
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-- Binary search and erase
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function erase_sorted_key(vector,key,field,cmp)
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local cur,found,pos = binsearch(vector,key,field,cmp)
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if found then
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if df.isvalid(vector) then
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vector:erase(pos)
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else
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table.remove(vector, pos)
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end
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end
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return found,cur,pos
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end
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function erase_sorted(vector,item,field,cmp)
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local key = item
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if field and item then
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key = item[field]
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end
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return erase_sorted_key(vector,key,field,cmp)
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end
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-- Calls a method with a string temporary
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function call_with_string(obj,methodname,...)
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return dfhack.with_temp_object(
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df.new "string",
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function(str,obj,methodname,...)
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obj[methodname](obj,str,...)
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return str.value
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end,
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obj,methodname,...
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)
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end
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function getBuildingName(building)
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return call_with_string(building, 'getName')
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end
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function getBuildingCenter(building)
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return xyz2pos(building.centerx, building.centery, building.z)
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end
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function getItemDescription(item,mode)
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return call_with_string(item, 'getItemDescription', mode or 0)
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end
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function getItemDescriptionPrefix(item,mode)
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return call_with_string(item, 'getItemDescriptionPrefix', mode or 0)
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end
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-- Split the string by the given delimiter
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function split_string(self, delimiter)
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return self:split(delimiter)
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end
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-- Ask a yes-no question
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function prompt_yes_no(msg,default)
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local prompt = msg
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if default == nil then
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prompt = prompt..' (y/n): '
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elseif default then
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prompt = prompt..' (y/n)[y]: '
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else
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prompt = prompt..' (y/n)[n]: '
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end
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while true do
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local rv,err = dfhack.lineedit(prompt)
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if not rv then
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qerror(err);
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elseif string.match(rv,'^[Yy]') then
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return true
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elseif string.match(rv,'^[Nn]') then
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return false
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elseif rv == 'abort' then
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qerror('User abort')
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elseif rv == '' and default ~= nil then
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return default
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end
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end
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end
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-- Ask for input with check function
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function prompt_input(prompt,check,quit_str)
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quit_str = quit_str or '~~~'
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while true do
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local rv,err = dfhack.lineedit(prompt)
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if not rv then
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qerror(err);
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end
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if rv == quit_str then
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qerror('User abort')
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end
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local rtbl = table.pack(check(rv))
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if rtbl[1] then
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return table.unpack(rtbl,2,rtbl.n)
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end
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end
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end
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function check_number(text)
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local nv = tonumber(text)
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return nv ~= nil, nv
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end
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-- Normalize directory separator slashes across platforms to '/' and collapse
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-- adjacent slashes into a single slash.
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local PLATFORM_SLASH = package.config:sub(1,1)
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function normalizePath(path)
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return path:gsub(PLATFORM_SLASH, '/'):gsub('/+', '/')
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end
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function invert(tab)
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local result = {}
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for k,v in pairs(tab) do
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result[v]=k
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end
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return result
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end
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-- processArgs() and processArgsGetopt() have been moved to argparse.lua.
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-- The 'require' statements are within the functions to avoid adding hard
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-- dependencies to utils.lua (which could lead to circular dependency issues).
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function processArgs(args, validArgs)
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return require('argparse').processArgs(args, validArgs)
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end
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function processArgsGetopt(args, optionActions)
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return require('argparse').processArgsGetopt(args, optionActions)
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end
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function fillTable(table1,table2)
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for k,v in pairs(table2) do
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table1[k] = v
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end
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end
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function unfillTable(table1,table2)
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for k,v in pairs(table2) do
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table1[k] = nil
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end
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end
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function df_shortcut_var(k)
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if k == 'scr' or k == 'screen' then
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return dfhack.gui.getCurViewscreen()
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elseif k == 'bld' or k == 'building' then
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return dfhack.gui.getSelectedBuilding()
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elseif k == 'item' then
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return dfhack.gui.getSelectedItem()
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elseif k == 'job' then
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return dfhack.gui.getSelectedJob()
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elseif k == 'wsjob' or k == 'workshop_job' then
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return dfhack.gui.getSelectedWorkshopJob()
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elseif k == 'unit' then
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return dfhack.gui.getSelectedUnit()
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elseif k == 'plant' then
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return dfhack.gui.getSelectedPlant()
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else
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for g in pairs(df.global) do
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if g == k then
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return df.global[k]
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end
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end
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return _G[k]
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end
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end
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function df_shortcut_env()
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local env = {}
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setmetatable(env, {__index = function(self, k) return df_shortcut_var(k) end})
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return env
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end
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df_env = df_shortcut_env()
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function df_expr_to_ref(expr)
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expr = expr:gsub('%["(.-)"%]', function(field) return '.' .. field end)
|
|
:gsub('%[\'(.-)\'%]', function(field) return '.' .. field end)
|
|
:gsub('%[(%-?%d+)%]', function(field) return '.' .. field end)
|
|
local parts = expr:split('.', true)
|
|
local obj = df_env[parts[1]]
|
|
for i = 2, #parts do
|
|
local key = tonumber(parts[i]) or parts[i]
|
|
if i == #parts then
|
|
local ok, ret = pcall(function()
|
|
return obj:_field(key)
|
|
end)
|
|
if ok then
|
|
return ret
|
|
end
|
|
end
|
|
obj = obj[key]
|
|
end
|
|
return obj
|
|
end
|
|
|
|
function addressof(obj)
|
|
return select(2, df.sizeof(obj))
|
|
end
|
|
|
|
function OrderedTable()
|
|
-- store values in a separate table to ensure that __index and __newindex
|
|
-- run on every table index operation
|
|
local t = {}
|
|
local key_to_index = {}
|
|
local index_to_key = {}
|
|
|
|
local mt = {}
|
|
function mt:__index(k)
|
|
return t[k]
|
|
end
|
|
function mt:__newindex(k, v)
|
|
if not key_to_index[k] then
|
|
table.insert(index_to_key, k)
|
|
key_to_index[k] = #index_to_key
|
|
end
|
|
t[k] = v
|
|
end
|
|
function mt:__pairs()
|
|
return function(_, k)
|
|
if k then
|
|
k = index_to_key[key_to_index[k] + 1]
|
|
else
|
|
k = index_to_key[1]
|
|
end
|
|
if k then
|
|
return k, t[k]
|
|
end
|
|
end, nil, nil
|
|
end
|
|
|
|
local self = {}
|
|
setmetatable(self, mt)
|
|
return self
|
|
end
|
|
|
|
return _ENV
|