mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-22 15:33:00 +00:00
Starbeamrainbowlabs
653864be99
We need to merge @VorTechnix's branch in first to gain access to advanced axis parsing functions before we can complete it. For this reason, the command registration for //copy is currently commented out.
55 lines
1.8 KiB
Lua
55 lines
1.8 KiB
Lua
local wea = worldeditadditions
|
|
local Vector3 = dofile(wea.modpath.."/utils/vector3.lua")
|
|
-- BUG: This does not exist yet - need to merge @VorTechnix's branch first to get it
|
|
-- TODO: Uncomment then once it's implemented
|
|
-- local parse_axis = dofile(wea.modpath.."/utils/axis.lua")
|
|
|
|
--- Parses a token list of axes and counts into a Vector3.
|
|
-- For example, "x 4" would become { x = 4, y = 0, z = 0 }, and "? 4 -z 10"
|
|
-- might become { x = 4, y = 0, z = -10 }.
|
|
-- Note that the input here needs to be *pre split*. wea.split_shell is
|
|
-- recommended for this purpose.
|
|
-- Uses wea.parse.axis for parsing axis names.
|
|
-- @param token_list string[] A list of tokens to parse
|
|
-- @returns Vector3 A Vector3 generated from parsing out the input token list.
|
|
local function parse_axes(token_list)
|
|
local vector_result = wea.Vector3.new()
|
|
|
|
if #token_list < 2 then
|
|
return false, "Error: Not enough arguments (at least 2 are required)"
|
|
end
|
|
|
|
local state = "AXIS"
|
|
local current_axis = nil
|
|
local success
|
|
|
|
for i,token in ipairs(token_list) do
|
|
if state == "AXIS" then
|
|
success, current_axis = parse_axis(token)
|
|
if not success then return success, current_axis end
|
|
state = "VALUE"
|
|
elseif state == "VALUE" then
|
|
|
|
local offset_this = tonumber(token)
|
|
if not offset_this then
|
|
return false, "Error: Invalid count value for axis '"..current_axis.."'. Values may only be positive or negative integers."
|
|
end
|
|
|
|
-- Handle negative axes
|
|
if current_axis:sub(1, 1) == "-" then
|
|
offset_this = -offset_this
|
|
current_axis = current_axis:sub(2, 2)
|
|
end
|
|
|
|
vector_result[current_axis] = vector_result[current_axis] + offset_this
|
|
|
|
state = "AXIS"
|
|
else
|
|
return false, "Error: Failed to parse input due to unknown state '"..tostring(state).."' (this is probably a bug - please report it!)"
|
|
end
|
|
end
|
|
|
|
return vector_result
|
|
end
|
|
|
|
return parse_axes
|