local string_sub, string_find = string.sub, string.find
--------------------------------------------------------------------------------
-function basic_dump(o)
+local function basic_dump(o)
local tp = type(o)
if tp == "number" then
return tostring(o)
-- dump's output is intended for humans.
--elseif tp == "function" then
-- return string.format("loadstring(%q)", string.dump(o))
+ elseif tp == "userdata" then
+ return tostring(o)
else
return string.format("<%s>", tp)
end
-- The dumped and level arguments are internal-only.
function dump(o, indent, nested, level)
- if type(o) ~= "table" then
+ local t = type(o)
+ if not level and t == "userdata" then
+ -- when userdata (e.g. player) is passed directly, print its metatable:
+ return "userdata metatable: " .. dump(getmetatable(o))
+ end
+ if t ~= "table" then
return basic_dump(o)
end
+
-- Contains table -> true/nil of currently nested tables
nested = nested or {}
if nested[o] then
nested[o] = true
indent = indent or "\t"
level = level or 1
- local t = {}
+
+ local ret = {}
local dumped_indexes = {}
for i, v in ipairs(o) do
- t[#t + 1] = dump(v, indent, nested, level + 1)
+ ret[#ret + 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)
- t[#t + 1] = k.." = "..v
+ ret[#ret + 1] = k.." = "..v
end
end
nested[o] = nil
local end_indent_str = "\n"..string.rep(indent, level - 1)
return string.format("{%s%s%s}",
indent_str,
- table.concat(t, ","..indent_str),
+ table.concat(ret, ","..indent_str),
end_indent_str)
end
- return "{"..table.concat(t, ", ").."}"
+ return "{"..table.concat(ret, ", ").."}"
end
--------------------------------------------------------------------------------
function string.split(str, delim, include_empty, max_splits, sep_is_pattern)
delim = delim or ","
- max_splits = max_splits or -1
+ max_splits = max_splits or -2
local items = {}
- local pos, len, seplen = 1, #str, #delim
+ local pos, len = 1, #str
local plain = not sep_is_pattern
max_splits = max_splits + 1
repeat
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"))
end
-assert(string.trim("\n \t\tfoo bar\t ") == "foo bar")
-
--------------------------------------------------------------------------------
function math.hypot(x, y)
local t
end
--------------------------------------------------------------------------------
-function get_last_folder(text,count)
- local parts = text:split(DIR_DELIM)
-
- if count == nil then
- return parts[#parts]
- end
-
- local retval = ""
- for i=1,count,1 do
- retval = retval .. parts[#parts - (count-i)] .. DIR_DELIM
- end
-
- return retval
-end
-
---------------------------------------------------------------------------------
-function cleanup_path(temppath)
-
- local parts = temppath:split("-")
- temppath = ""
- for i=1,#parts,1 do
- if temppath ~= "" then
- temppath = temppath .. "_"
- end
- temppath = temppath .. parts[i]
- end
-
- parts = temppath:split(".")
- temppath = ""
- for i=1,#parts,1 do
- if temppath ~= "" then
- temppath = temppath .. "_"
- end
- temppath = temppath .. parts[i]
+function math.factorial(x)
+ assert(x % 1 == 0 and x >= 0, "factorial expects a non-negative integer")
+ if x >= 171 then
+ -- 171! is greater than the biggest double, no need to calculate
+ return math.huge
end
-
- parts = temppath:split("'")
- temppath = ""
- for i=1,#parts,1 do
- if temppath ~= "" then
- temppath = temppath .. ""
- end
- temppath = temppath .. parts[i]
+ local v = 1
+ for k = 2, x do
+ v = v * k
end
-
- parts = temppath:split(" ")
- temppath = ""
- for i=1,#parts,1 do
- if temppath ~= "" then
- temppath = temppath
- end
- temppath = temppath .. parts[i]
- end
-
- return temppath
+ return v
end
function core.formspec_escape(text)
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
- retval[#retval + 1] = last_line
- last_line = ""
- end
- if last_line ~= "" then
- last_line = last_line .. " "
+ 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
-
- last_line = last_line .. string_sub(text, current_idx, stop - 1)
-
- if gotnewline then
- retval[#retval + 1] = last_line
- last_line = ""
- gotnewline = false
- 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
- retval[#retval + 1] = last_line
- retval[#retval + 1] = string_sub(text, current_idx)
- else
- last_line = last_line .. " " .. string_sub(text, current_idx)
- retval[#retval + 1] = 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
--------------------------------------------------------------------------------
local dirs2 = {20, 23, 22, 21}
function core.rotate_and_place(itemstack, placer, pointed_thing,
- infinitestacks, orient_flags)
+ infinitestacks, orient_flags, prevent_after_place)
orient_flags = orient_flags or {}
local unode = core.get_node_or_nil(pointed_thing.under)
return
end
local undef = core.registered_nodes[unode.name]
- if undef and undef.on_rightclick then
- undef.on_rightclick(pointed_thing.under, unode, placer,
+ local sneaking = placer and placer:get_player_control().sneak
+ if undef and undef.on_rightclick and not sneaking then
+ return undef.on_rightclick(pointed_thing.under, unode, placer,
itemstack, pointed_thing)
- return
end
- local fdir = core.dir_to_facedir(placer:get_look_dir())
- local wield_name = itemstack:get_name()
+ local fdir = placer and core.dir_to_facedir(placer:get_look_dir()) or 0
local above = pointed_thing.above
local under = pointed_thing.under
local iswall = (above.y == under.y)
local isceiling = not iswall and (above.y < under.y)
- local anode = core.get_node_or_nil(above)
- if not anode then
- return
- end
- local pos = pointed_thing.above
- local node = anode
if undef and undef.buildable_to then
- pos = pointed_thing.under
- node = unode
iswall = false
end
- if core.is_protected(pos, placer:get_player_name()) then
- core.record_protection_violation(pos,
- placer:get_player_name())
- return
- end
-
- local ndef = core.registered_nodes[node.name]
- if not ndef or not ndef.buildable_to then
- return
- end
-
if orient_flags.force_floor then
iswall = false
isceiling = false
iswall = not iswall
end
+ local param2 = fdir
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})
+ 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
- core.set_node(pos, {name = wield_name,
- param2 = 0})
- else
- core.set_node(pos, {name = wield_name,
- param2 = fdir})
+ param2 = 0
end
end
- if not infinitestacks then
- itemstack:take_item()
- return itemstack
- end
+ local old_itemstack = ItemStack(itemstack)
+ local new_itemstack = core.item_place_node(itemstack, placer,
+ pointed_thing, param2, prevent_after_place)
+ return infinitestacks and old_itemstack or new_itemstack
end
--Wrapper for rotate_and_place() to check for sneak and assume Creative mode
--implies infinite stacks when performing a 6d rotation.
--------------------------------------------------------------------------------
-
-
core.rotate_node = function(itemstack, placer, pointed_thing)
- core.rotate_and_place(itemstack, placer, pointed_thing,
- core.setting_getbool("creative_mode"),
- {invert_wall = placer:get_player_control().sneak})
- return itemstack
+ local name = placer and placer:get_player_name() or ""
+ local invert_wall = placer and placer:get_player_control().sneak or false
+ return core.rotate_and_place(itemstack, placer, pointed_thing,
+ core.is_creative_enabled(name),
+ {invert_wall = invert_wall}, true)
end
end
return retval
end
+--------------------------------------------------------------------------------
+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
p.z = tonumber(p.z)
return p
end
- local p = {}
+ 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)
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)
end
return n
end
+
+
+function table.insert_all(t, other)
+ for i=1, #other do
+ t[#t + 1] = other[i]
+ end
+ return t
+end
+
+
+function table.key_value_swap(t)
+ local ti = {}
+ for k,v in pairs(t) do
+ ti[v] = k
+ end
+ return ti
+end
+
+
+function table.shuffle(t, from, to, random)
+ from = from or 1
+ to = to or #t
+ random = random or math.random
+ local n = to - from + 1
+ while n > 1 do
+ local r = from + n-1
+ local l = from + random(0, n-1)
+ t[l], t[r] = t[r], t[l]
+ n = n-1
+ end
+end
+
+
--------------------------------------------------------------------------------
-- mainmenu only functions
--------------------------------------------------------------------------------
if INIT == "mainmenu" then
function core.get_game(index)
- local games = game.get_games()
+ local games = core.get_games()
if index > 0 and index <= #games then
return games[index]
end
end
--- Client-sided mods don't have access to getbool
-if core.setting_getbool and core.setting_getbool("disable_escape_sequences") then
+local ESCAPE_CHAR = string.char(0x1b)
- function core.get_color_escape_sequence(color)
- return ""
- end
+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.get_background_escape_sequence(color)
- return ""
+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
- function core.colorize(color, message)
- return message
+ 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
-else
+function core.get_translator(textdomain)
+ return function(str, ...) return core.translate(textdomain or "", str, ...) end
+end
- local ESCAPE_CHAR = string.char(0x1b)
- function core.get_color_escape_sequence(color)
- return ESCAPE_CHAR .. "(c@" .. color .. ")"
+--------------------------------------------------------------------------------
+-- Returns the exact coordinate of a pointed surface
+--------------------------------------------------------------------------------
+function core.pointed_thing_to_face_pos(placer, pointed_thing)
+ -- Avoid crash in some situations when player is inside a node, causing
+ -- 'above' to equal 'under'.
+ if vector.equals(pointed_thing.above, pointed_thing.under) then
+ return pointed_thing.under
+ end
+
+ local eye_height = placer:get_properties().eye_height
+ 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
- function core.get_background_escape_sequence(color)
- return ESCAPE_CHAR .. "(b@" .. color .. ")"
+ local fine_pos = {[nc] = node_pos[nc] + offset}
+ camera_pos.y = camera_pos.y + eye_height + 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.colorize(color, message)
- local lines = message:split("\n", true)
- local color_code = core.get_color_escape_sequence(color)
+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
- for i, line in ipairs(lines) do
- lines[i] = color_code .. line
+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
-
- return table.concat(lines, "\n") .. core.get_color_escape_sequence("#ffffff")
end
+ return table.concat(list, delim)
+end
+function core.is_nan(number)
+ return number ~= number
end
projects / dragonfireclient.git / blobdiff