225 lines
7.3 KiB
Lua
225 lines
7.3 KiB
Lua
-- ██████ █████ ██████ ███████ ███████ █████ ██ ██ ███████ ███████
|
|
-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
-- ██████ ███████ ██████ ███████ █████ ███████ ███ █████ ███████
|
|
-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
-- ██ ██ ██ ██ ██ ███████ ███████ ██ ██ ██ ██ ███████ ███████
|
|
|
|
-- Error codes: https://kinsta.com/blog/http-status-codes/
|
|
|
|
--- FOR TESTING ---
|
|
local function unpack(tbl)
|
|
if table.unpack then
|
|
return table.unpack(tbl)
|
|
else return unpack(tbl) end
|
|
end
|
|
---------------
|
|
|
|
local Vector3
|
|
if worldeditadditions then
|
|
local wea = worldeditadditions
|
|
Vector3 = dofile(wea.modpath.."/utils/vector3.lua")
|
|
else
|
|
Vector3 = require("worldeditadditions.utils.vector3")
|
|
end
|
|
|
|
local key_instance
|
|
if worldeditadditions then
|
|
local wea = worldeditadditions
|
|
key_instance = dofile(wea.modpath.."/utils/parse/key_instance.lua")
|
|
else
|
|
key_instance = require("worldeditadditions.utils.parse.key_instance")
|
|
end
|
|
|
|
--- Unified Axis Keywords banks
|
|
local keywords = {
|
|
-- Compass keywords
|
|
compass = {
|
|
n = "z", north = "z",
|
|
["-n"] = "-z", ["-north"] = "-z",
|
|
s = "-z", south = "-z",
|
|
["-s"] = "z", ["-south"] = "z",
|
|
e = "x", east = "x",
|
|
["-e"] = "-x", ["-east"] = "-x",
|
|
w = "-x", west = "-x",
|
|
["-w"] = "x", ["-west"] = "x",
|
|
},
|
|
|
|
-- Direction keywords
|
|
dir = {
|
|
["?"] = "front", f = "front",
|
|
facing = "front", front = "front",
|
|
b = "back", back = "back",
|
|
behind = "back", rear = "back",
|
|
l = "left", left = "left",
|
|
r = "right", right = "right",
|
|
u = "up", up = "up",
|
|
d = "down", down = "down",
|
|
},
|
|
|
|
-- Mirroring keywords
|
|
mirroring = {
|
|
sym = true, symmetrical = true,
|
|
mirror = true, mir = true,
|
|
rev = true, reverse = true,
|
|
["true"] = true
|
|
},
|
|
}
|
|
|
|
--- Initialize parser function container
|
|
local parse = {}
|
|
|
|
--- Processes an axis declaration into ordered xyz format. (Supports axis clumping)
|
|
-- For example, "zzy" would become "yz"
|
|
-- @param: str: String: Axis declaration to parse
|
|
-- @returns: Table|Bool: axis | axes | false
|
|
function parse.axis(str)
|
|
local axes, ret = {"x","y","z"}, {}
|
|
for i,v in ipairs(axes) do
|
|
if str:match(v) then table.insert(ret,v) end
|
|
end
|
|
if #ret > 0 and str:match("^[xyz]+$") then
|
|
return ret
|
|
elseif str == "h" then
|
|
return {"x", "z"}
|
|
elseif str == "v" then
|
|
return {"y"}
|
|
else return false end
|
|
end
|
|
|
|
--- Processes an number from a string.
|
|
-- @param: str: String: string to parse
|
|
-- @returns: Number|Bool: processed number | false
|
|
function parse.num(str)
|
|
str = tostring(str) -- To prevent meltdown if str isn't a string
|
|
local num = str:match("^-?%d+%.?%d*$")
|
|
if num then
|
|
return tonumber(num)
|
|
else return false end
|
|
end
|
|
|
|
--- Checks if a string is a valid Unified Axis Keyword. (Supports axis clumping)
|
|
-- @param: str: String: Keyword instance to parse
|
|
-- @returns: Key Instance: returns keyword type, processed keyword content and signed number (or nil)
|
|
function parse.keyword(str)
|
|
if type(str) ~= "string" then
|
|
return key_instance.new("err", "Error: \""..tostring(str).."\" is not a string.", 404)
|
|
elseif keywords.compass[str] then
|
|
str = keywords.compass[str]
|
|
end
|
|
local sign = 1
|
|
if str:sub(1,1) == "-" then
|
|
sign = -1
|
|
str = str:sub(2)
|
|
end
|
|
|
|
local axes = parse.axis(str)
|
|
if axes then
|
|
return key_instance.new("axis", axes, sign)
|
|
elseif keywords.dir[str] then
|
|
return key_instance.new("dir", keywords.dir[str], sign)
|
|
elseif keywords.mirroring[str] then
|
|
return key_instance.new("rev", "mirroring")
|
|
else return key_instance.new("err", "Error: \""..str.."\" is not a valid axis, direction or keyword.", 422)
|
|
end
|
|
end
|
|
|
|
--- Creates a vector with a length of (@param: value * @param: sign)
|
|
-- on each axis in @param: axes.
|
|
-- @param: axes: Table: List of axes to set
|
|
-- @param: value: Number: length of to set axes
|
|
-- @param: sign: Number: sign multiplier for axes
|
|
-- @returns: Vector3: processed vector
|
|
function parse.vectorize(axes,value,sign)
|
|
local ret = Vector3.new()
|
|
for i,v in ipairs(axes) do
|
|
ret[v] = value * sign
|
|
end
|
|
return ret
|
|
end
|
|
|
|
--- Converts Unified Axis Keyword table into Vector3 instances.
|
|
-- @param: tbl: Table: Keyword table to parse
|
|
-- @param: facing: Table: Output from worldeditadditions.player_dir(name)
|
|
-- @param: sum: Bool: Return a single vector by summing the 2 output vectors together
|
|
-- @returns: Vector3, [Vector3]: returns min, max Vector3s or sum Vector3 (if @param: sum ~= nil)
|
|
-- if error: @returns: false, String: error message
|
|
function parse.keytable(tbl, facing, sum)
|
|
local min, max = Vector3.new(), Vector3.new()
|
|
local expected, tmp = 1, {axes = {}, num = 0, sign = 1, mirror = false}
|
|
function tmp:reset() self.axis, self.sign = "", 1 end
|
|
|
|
for i,v in ipairs(tbl) do
|
|
if v:sub(1,1) == "+" then v = v:sub(2) end
|
|
tmp.num = parse.num(v)
|
|
if expected == 1 then -- Mode 1 of state machine
|
|
-- State machine expects string
|
|
if tmp.num then
|
|
-- If this is a number treat as all axes and add to appropriate vector
|
|
if tmp.num * tmp.sign >= 0 then
|
|
max = max:add(parse.vectorize({"x","y","z"}, tmp.num, tmp.sign))
|
|
else
|
|
min = min:add(parse.vectorize({"x","y","z"}, tmp.num, tmp.sign))
|
|
end
|
|
-- We are still looking for axes so the state machine should remain
|
|
-- in Mode 1 for the next iteration
|
|
else
|
|
-- Else parse.keyword
|
|
local key_inst = parse.keyword(v)
|
|
-- Stop if error and return message
|
|
if key_inst:is_error() then return false, key_inst.entry end
|
|
-- Check key type and process further
|
|
if key_inst.type == "axis" then
|
|
tmp.axes = key_inst.entry
|
|
tmp.sign = key_inst.sign
|
|
elseif key_inst.type == "dir" then
|
|
tmp.axes = {facing[key_inst.entry].axis}
|
|
tmp.sign = facing[key_inst.entry].sign * key_inst.sign
|
|
elseif key_inst.type == "rev" then
|
|
tmp.mirror = true
|
|
else
|
|
-- If key type is error or unknown throw error and stop
|
|
if key_inst.type == "err" then
|
|
return false, key_inst.entry
|
|
else
|
|
return false, "Error: Unknown Key Instance type \""..
|
|
tostring(key_inst.type).."\". Contact the devs!"
|
|
end
|
|
end
|
|
expected = 2 -- Toggle state machine to expect number (Mode 2)
|
|
end
|
|
|
|
else -- Mode 2 of state machine
|
|
-- State machine expects number
|
|
if tmp.num then
|
|
-- If this is a number process num and add to appropriate vector
|
|
if tmp.num * tmp.sign >= 0 then
|
|
max = max:add(parse.vectorize(tmp.axes, tmp.num, tmp.sign))
|
|
else
|
|
min = min:add(parse.vectorize(tmp.axes, tmp.num, tmp.sign))
|
|
end
|
|
expected = 1 -- Toggle state machine to expect string (Mode 1)
|
|
else
|
|
-- Else throw an error and stop everything
|
|
return false, "Error: Expected number after \""..tostring(tbl[i-1])..
|
|
"\", got \""..tostring(v).."\"."
|
|
end
|
|
end -- End of state machine
|
|
|
|
end -- End of main for loop
|
|
|
|
-- Handle Mirroring
|
|
if tmp.mirror and not sum then
|
|
max = max:max(min:abs())
|
|
min = max:multiply(-1)
|
|
end
|
|
|
|
if sum then return min:add(max)
|
|
else return min, max end
|
|
|
|
end
|
|
|
|
return {
|
|
keyword = parse.keyword,
|
|
keytable = parse.keytable,
|
|
}
|