Minetest-WorldEditAdditions/worldeditadditions/lib/set.lua

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local wea_c = worldeditadditions_core
local Vector3 = wea_c.Vector3
---
-- @module worldeditadditions
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--- Sets the given parameter to the given value.
-- This function would pair well with worldeditadditions.nodeapply.
-- @param pos1 Vector3 Position 1 of the define region to operate on.
-- @param pos2 Vector3 Position 2 of the define region to operate on.
-- @param param string="param|param2" The name of the parameter to set. Currently possible values:
--
-- - **`param`:** Param1, aka the node id.
-- - **`param2`:** The supplementary parameter that each node has. See also <https://api.minetest.net/nodes/#node-paramtypes>. The node type is set by the mod or game that provides each node in question.
-- - **`light`:** Sets the light value of all nodes in the defined region.
-- @param value string|number The value to set the given parameter to. If `param` is set to "param" and `value` is a `string`, then `value` is converted into a number by calling `minetest.get_content_id()`.
-- @returns bool,table|string true,statistics_table OR false,error_message.
function worldeditadditions.set(pos1, pos2, mode, value)
if mode ~= "param" and mode ~= "param2" and mode ~= "light" then
return false, "Error: Unknown parameter type "..tostring(mode)..". Supported values: param, param2."
end
pos1, pos2 = Vector3.sort(pos1, pos2)
-- pos2 will always have the highest co-ordinates now
local setvalue = value
if mode == "param" and type(setvalue) == "string" then
setvalue = minetest.get_content_id(setvalue)
end
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-- Initialise statistics
local stats = { changed = 0 }
-- Fetch the nodes in the specified area
local manip, area = worldedit.manip_helpers.init(pos1, pos2)
local data = nil
if mode == "param" then
data = manip:get_data()
elseif mode == "param2" then
data = manip:get_param2_data()
elseif mode == "light" then
-- Shortcut!
manip:set_lighting({ day = setvalue, night = setvalue }, pos1, pos2)
manip:write_to_map(false)
manip:update_map()
return true, stats
end
for i in area:iterp(pos1, pos2) do
data[i] = setvalue
stats.changed = stats.changed + 1
end
if mode == "param" then
manip:set_data(data)
else
manip:set_param2_data(data)
end
-- Save the modified nodes back to disk & return
-- Can't use worldedit.manip_helpers.finish 'cause of dynamic param/light setting
manip:write_to_map()
manip:update_map()
return true, stats
end