-- Minetest: builtin/misc_helpers.lua
+--------------------------------------------------------------------------------
+-- Localize functions to avoid table lookups (better performance).
+local string_sub, string_find = string.sub, string.find
+
--------------------------------------------------------------------------------
function basic_dump(o)
local tp = type(o)
-- the form _G["table: 0xFFFFFFF"]
keyStr = string.format("_G[%q]", tostring(k))
-- Dump key table
- table.insert(t, dump2(k, keyStr, dumped))
+ t[#t + 1] = dump2(k, keyStr, dumped)
end
else
keyStr = basic_dump(k)
end
local vname = string.format("%s[%s]", name, keyStr)
- table.insert(t, dump2(v, vname, dumped))
+ t[#t + 1] = dump2(v, vname, dumped)
end
return string.format("%s = {}\n%s", name, table.concat(t))
end
local t = {}
local dumped_indexes = {}
for i, v in ipairs(o) do
- table.insert(t, dump(v, indent, nested, level + 1))
+ t[#t + 1] = dump(v, indent, nested, level + 1)
dumped_indexes[i] = true
end
for k, v in pairs(o) do
k = "["..dump(k, indent, nested, level + 1).."]"
end
v = dump(v, indent, nested, level + 1)
- table.insert(t, k.." = "..v)
+ t[#t + 1] = k.." = "..v
end
end
nested[o] = nil
if indent ~= "" then
local indent_str = "\n"..string.rep(indent, level)
- local end_indent_str = "\n"..string.rep("\t", level - 1)
+ local end_indent_str = "\n"..string.rep(indent, level - 1)
return string.format("{%s%s%s}",
indent_str,
table.concat(t, ","..indent_str),
end
--------------------------------------------------------------------------------
-function string:split(sep)
- local sep, fields = sep or ",", {}
- local pattern = string.format("([^%s]+)", sep)
- self:gsub(pattern, function(c) fields[#fields+1] = c end)
- return fields
+function string.split(str, delim, include_empty, max_splits, sep_is_pattern)
+ delim = delim or ","
+ max_splits = max_splits or -1
+ local items = {}
+ local pos, len, seplen = 1, #str, #delim
+ local plain = not sep_is_pattern
+ max_splits = max_splits + 1
+ repeat
+ local np, npe = string_find(str, delim, pos, plain)
+ np, npe = (np or (len+1)), (npe or (len+1))
+ if (not np) or (max_splits == 1) then
+ np = len + 1
+ npe = np
+ end
+ local s = string_sub(str, pos, np - 1)
+ if include_empty or (s ~= "") then
+ max_splits = max_splits - 1
+ items[#items + 1] = s
+ end
+ pos = npe + 1
+ until (max_splits == 0) or (pos > (len + 1))
+ return items
end
--------------------------------------------------------------------------------
-function file_exists(filename)
- local f = io.open(filename, "r")
- if f==nil then
- return false
- else
- f:close()
- return true
+function table.indexof(list, val)
+ for i, v in ipairs(list) do
+ if v == val then
+ return i
+ end
end
+ return -1
end
+assert(table.indexof({"foo", "bar"}, "foo") == 1)
+assert(table.indexof({"foo", "bar"}, "baz") == -1)
+
+--------------------------------------------------------------------------------
+if INIT ~= "client" then
+ function file_exists(filename)
+ local f = io.open(filename, "r")
+ if f == nil then
+ return false
+ else
+ f:close()
+ return true
+ end
+ end
+end
--------------------------------------------------------------------------------
function string:trim()
return (self:gsub("^%s*(.-)%s*$", "%1"))
return x * math.sqrt(1 + t * t)
end
+--------------------------------------------------------------------------------
+function math.sign(x, tolerance)
+ tolerance = tolerance or 0
+ if x > tolerance then
+ return 1
+ elseif x < -tolerance then
+ return -1
+ end
+ return 0
+end
+
--------------------------------------------------------------------------------
function get_last_folder(text,count)
local parts = text:split(DIR_DELIM)
end
-function core.splittext(text,charlimit)
- local retval = {}
-
- local current_idx = 1
-
- local start,stop = string.find(text," ",current_idx)
- local nl_start,nl_stop = string.find(text,"\n",current_idx)
- local gotnewline = false
- if nl_start ~= nil and (start == nil or nl_start < start) then
- start = nl_start
- stop = nl_stop
- gotnewline = true
+function core.wrap_text(text, max_length, as_table)
+ local result = {}
+ local line = {}
+ if #text <= max_length then
+ return as_table and {text} or text
end
- local last_line = ""
- while start ~= nil do
- if string.len(last_line) + (stop-start) > charlimit then
- table.insert(retval,last_line)
- last_line = ""
- end
-
- if last_line ~= "" then
- last_line = last_line .. " "
- end
-
- last_line = last_line .. string.sub(text,current_idx,stop -1)
- if gotnewline then
- table.insert(retval,last_line)
- last_line = ""
- gotnewline = false
+ for word in text:gmatch('%S+') do
+ local cur_length = #table.concat(line, ' ')
+ if cur_length > 0 and cur_length + #word + 1 >= max_length then
+ -- word wouldn't fit on current line, move to next line
+ table.insert(result, table.concat(line, ' '))
+ line = {}
end
- current_idx = stop+1
-
- start,stop = string.find(text," ",current_idx)
- nl_start,nl_stop = string.find(text,"\n",current_idx)
-
- if nl_start ~= nil and (start == nil or nl_start < start) then
- start = nl_start
- stop = nl_stop
- gotnewline = true
- end
- end
-
- --add last part of text
- if string.len(last_line) + (string.len(text) - current_idx) > charlimit then
- table.insert(retval,last_line)
- table.insert(retval,string.sub(text,current_idx))
- else
- last_line = last_line .. " " .. string.sub(text,current_idx)
- table.insert(retval,last_line)
+ table.insert(line, word)
end
- return retval
+ table.insert(result, table.concat(line, ' '))
+ return as_table and result or table.concat(result, '\n')
end
--------------------------------------------------------------------------------
itemstack, pointed_thing)
return
end
- local pitch = placer:get_look_pitch()
- local fdir = core.dir_to_facedir(placer:get_look_dir())
+ local fdir = placer and core.dir_to_facedir(placer:get_look_dir()) or 0
local wield_name = itemstack:get_name()
local above = pointed_thing.above
iswall = false
end
- if core.is_protected(pos, placer:get_player_name()) then
- core.record_protection_violation(pos,
- placer:get_player_name())
+ local name = placer and placer:get_player_name() or ""
+ if core.is_protected(pos, name) then
+ core.record_protection_violation(pos, name)
return
end
if iswall then
core.set_node(pos, {name = wield_name,
- param2 = dirs1[fdir+1]})
+ param2 = dirs1[fdir + 1]})
elseif isceiling then
if orient_flags.force_facedir then
core.set_node(pos, {name = wield_name,
param2 = 20})
else
core.set_node(pos, {name = wield_name,
- param2 = dirs2[fdir+1]})
+ param2 = dirs2[fdir + 1]})
end
else -- place right side up
if orient_flags.force_facedir then
--Wrapper for rotate_and_place() to check for sneak and assume Creative mode
--implies infinite stacks when performing a 6d rotation.
--------------------------------------------------------------------------------
-
+ local creative_mode_cache = core.settings:get_bool("creative_mode")
+ local function is_creative(name)
+ return creative_mode_cache or
+ core.check_player_privs(name, {creative = true})
+ end
core.rotate_node = function(itemstack, placer, pointed_thing)
+ local name = placer and placer:get_player_name() or ""
+ local invert_wall = placer and placer:get_player_control().sneak or false
core.rotate_and_place(itemstack, placer, pointed_thing,
- core.setting_getbool("creative_mode"),
- {invert_wall = placer:get_player_control().sneak})
+ is_creative(name),
+ {invert_wall = invert_wall})
return itemstack
end
end
local t = parts[1]:trim()
local r = tonumber(parts[2]:trim())
local c = tonumber(parts[3]:trim())
- if type(r) == "number" and type(c) == "number" and t ~= "INV" then
+ if type(r) == "number" and type(c) == "number"
+ and t ~= "INV" then
return {type=t, row=r, column=c}
end
end
end
--------------------------------------------------------------------------------
-function core.pos_to_string(pos)
- return "(" .. pos.x .. "," .. pos.y .. "," .. pos.z .. ")"
+function core.rgba(r, g, b, a)
+ return a and string.format("#%02X%02X%02X%02X", r, g, b, a) or
+ string.format("#%02X%02X%02X", r, g, b)
+end
+
+--------------------------------------------------------------------------------
+function core.pos_to_string(pos, decimal_places)
+ local x = pos.x
+ local y = pos.y
+ local z = pos.z
+ if decimal_places ~= nil then
+ x = string.format("%." .. decimal_places .. "f", x)
+ y = string.format("%." .. decimal_places .. "f", y)
+ z = string.format("%." .. decimal_places .. "f", z)
+ end
+ return "(" .. x .. "," .. y .. "," .. z .. ")"
+end
+
+--------------------------------------------------------------------------------
+function core.string_to_pos(value)
+ if value == nil then
+ return nil
+ end
+
+ local p = {}
+ p.x, p.y, p.z = string.match(value, "^([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+)$")
+ if p.x and p.y and p.z then
+ p.x = tonumber(p.x)
+ p.y = tonumber(p.y)
+ p.z = tonumber(p.z)
+ return p
+ end
+ local p = {}
+ p.x, p.y, p.z = string.match(value, "^%( *([%d.-]+)[, ] *([%d.-]+)[, ] *([%d.-]+) *%)$")
+ if p.x and p.y and p.z then
+ p.x = tonumber(p.x)
+ p.y = tonumber(p.y)
+ p.z = tonumber(p.z)
+ return p
+ end
+ return nil
+end
+
+assert(core.string_to_pos("10.0, 5, -2").x == 10)
+assert(core.string_to_pos("( 10.0, 5, -2)").z == -2)
+assert(core.string_to_pos("asd, 5, -2)") == nil)
+
+--------------------------------------------------------------------------------
+function core.string_to_area(value)
+ local p1, p2 = unpack(value:split(") ("))
+ if p1 == nil or p2 == nil then
+ return nil
+ end
+
+ p1 = core.string_to_pos(p1 .. ")")
+ p2 = core.string_to_pos("(" .. p2)
+ if p1 == nil or p2 == nil then
+ return nil
+ end
+
+ return p1, p2
+end
+
+local function test_string_to_area()
+ local p1, p2 = core.string_to_area("(10.0, 5, -2) ( 30.2, 4, -12.53)")
+ assert(p1.x == 10.0 and p1.y == 5 and p1.z == -2)
+ assert(p2.x == 30.2 and p2.y == 4 and p2.z == -12.53)
+
+ p1, p2 = core.string_to_area("(10.0, 5, -2 30.2, 4, -12.53")
+ assert(p1 == nil and p2 == nil)
+
+ p1, p2 = core.string_to_area("(10.0, 5,) -2 fgdf2, 4, -12.53")
+ assert(p1 == nil and p2 == nil)
end
+test_string_to_area()
+
+--------------------------------------------------------------------------------
+function table.copy(t, seen)
+ local n = {}
+ seen = seen or {}
+ seen[t] = n
+ for k, v in pairs(t) do
+ n[(type(k) == "table" and (seen[k] or table.copy(k, seen))) or k] =
+ (type(v) == "table" and (seen[v] or table.copy(v, seen))) or v
+ end
+ return n
+end
--------------------------------------------------------------------------------
-- mainmenu only functions
--------------------------------------------------------------------------------
return nil
end
+end
- function fgettext(text, ...)
+if INIT == "client" or INIT == "mainmenu" then
+ function fgettext_ne(text, ...)
text = core.gettext(text)
local arg = {n=select('#', ...), ...}
if arg.n >= 1 then
-- Insert positional parameters ($1, $2, ...)
- result = ''
- pos = 1
+ local result = ''
+ local pos = 1
while pos <= text:len() do
- newpos = text:find('[$]', pos)
+ local newpos = text:find('[$]', pos)
if newpos == nil then
result = result .. text:sub(pos)
pos = text:len() + 1
else
- paramindex = tonumber(text:sub(newpos+1, newpos+1))
- result = result .. text:sub(pos, newpos-1) .. tostring(arg[paramindex])
+ local paramindex =
+ tonumber(text:sub(newpos+1, newpos+1))
+ result = result .. text:sub(pos, newpos-1)
+ .. tostring(arg[paramindex])
pos = newpos + 2
end
end
text = result
end
- return core.formspec_escape(text)
+ return text
+ end
+
+ function fgettext(text, ...)
+ return core.formspec_escape(fgettext_ne(text, ...))
+ end
+end
+
+local ESCAPE_CHAR = string.char(0x1b)
+
+function core.get_color_escape_sequence(color)
+ return ESCAPE_CHAR .. "(c@" .. color .. ")"
+end
+
+function core.get_background_escape_sequence(color)
+ return ESCAPE_CHAR .. "(b@" .. color .. ")"
+end
+
+function core.colorize(color, message)
+ local lines = tostring(message):split("\n", true)
+ local color_code = core.get_color_escape_sequence(color)
+
+ for i, line in ipairs(lines) do
+ lines[i] = color_code .. line
+ end
+
+ return table.concat(lines, "\n") .. core.get_color_escape_sequence("#ffffff")
+end
+
+
+function core.strip_foreground_colors(str)
+ return (str:gsub(ESCAPE_CHAR .. "%(c@[^)]+%)", ""))
+end
+
+function core.strip_background_colors(str)
+ return (str:gsub(ESCAPE_CHAR .. "%(b@[^)]+%)", ""))
+end
+
+function core.strip_colors(str)
+ return (str:gsub(ESCAPE_CHAR .. "%([bc]@[^)]+%)", ""))
+end
+
+function core.translate(textdomain, str, ...)
+ local start_seq
+ if textdomain == "" then
+ start_seq = ESCAPE_CHAR .. "T"
+ else
+ start_seq = ESCAPE_CHAR .. "(T@" .. textdomain .. ")"
+ end
+ local arg = {n=select('#', ...), ...}
+ local end_seq = ESCAPE_CHAR .. "E"
+ local arg_index = 1
+ local translated = str:gsub("@(.)", function(matched)
+ local c = string.byte(matched)
+ if string.byte("1") <= c and c <= string.byte("9") then
+ local a = c - string.byte("0")
+ if a ~= arg_index then
+ error("Escape sequences in string given to core.translate " ..
+ "are not in the correct order: got @" .. matched ..
+ "but expected @" .. tostring(arg_index))
+ end
+ if a > arg.n then
+ error("Not enough arguments provided to core.translate")
+ end
+ arg_index = arg_index + 1
+ return ESCAPE_CHAR .. "F" .. arg[a] .. ESCAPE_CHAR .. "E"
+ elseif matched == "n" then
+ return "\n"
+ else
+ return matched
+ end
+ end)
+ if arg_index < arg.n + 1 then
+ error("Too many arguments provided to core.translate")
+ end
+ return start_seq .. translated .. end_seq
+end
+
+function core.get_translator(textdomain)
+ return function(str, ...) return core.translate(textdomain or "", str, ...) end
+end
+
+--------------------------------------------------------------------------------
+-- Returns the exact coordinate of a pointed surface
+--------------------------------------------------------------------------------
+function core.pointed_thing_to_face_pos(placer, pointed_thing)
+ local eye_offset_first = placer:get_eye_offset()
+ local node_pos = pointed_thing.under
+ local camera_pos = placer:get_pos()
+ local pos_off = vector.multiply(
+ vector.subtract(pointed_thing.above, node_pos), 0.5)
+ local look_dir = placer:get_look_dir()
+ local offset, nc
+ local oc = {}
+
+ for c, v in pairs(pos_off) do
+ if nc or v == 0 then
+ oc[#oc + 1] = c
+ else
+ offset = v
+ nc = c
+ end
+ end
+
+ local fine_pos = {[nc] = node_pos[nc] + offset}
+ camera_pos.y = camera_pos.y + 1.625 + eye_offset_first.y / 10
+ local f = (node_pos[nc] + offset - camera_pos[nc]) / look_dir[nc]
+
+ for i = 1, #oc do
+ fine_pos[oc[i]] = camera_pos[oc[i]] + look_dir[oc[i]] * f
+ end
+ return fine_pos
+end
+
+function core.string_to_privs(str, delim)
+ assert(type(str) == "string")
+ delim = delim or ','
+ local privs = {}
+ for _, priv in pairs(string.split(str, delim)) do
+ privs[priv:trim()] = true
+ end
+ return privs
+end
+
+function core.privs_to_string(privs, delim)
+ assert(type(privs) == "table")
+ delim = delim or ','
+ local list = {}
+ for priv, bool in pairs(privs) do
+ if bool then
+ list[#list + 1] = priv
+ end
end
+ return table.concat(list, delim)
end
+assert(core.string_to_privs("a,b").b == true)
+assert(core.privs_to_string({a=true,b=true}) == "a,b")
projects / minetest.git / blobdiff