mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-06-02 20:53:04 +00:00
53 lines
2.2 KiB
Lua
53 lines
2.2 KiB
Lua
--- Copies a region to another location, potentially overwriting the exiting region.
|
|
-- @module worldeditadditions.copy
|
|
|
|
local wea = worldeditadditions
|
|
local Vector3 = wea.Vector3
|
|
|
|
-- ███ ███ ██████ ██ ██ ███████
|
|
-- ████ ████ ██ ██ ██ ██ ██
|
|
-- ██ ████ ██ ██ ██ ██ ██ █████
|
|
-- ██ ██ ██ ██ ██ ██ ██ ██
|
|
-- ██ ██ ██████ ████ ███████
|
|
|
|
function worldeditadditions.move(source_pos1, source_pos2, target_pos1, target_pos2)
|
|
source_pos1, source_pos2 = Vector3.sort(source_pos1, source_pos2)
|
|
target_pos1, target_pos2 = Vector3.sort(target_pos1, target_pos2)
|
|
|
|
local offset = source_pos1:subtract(target_pos1)
|
|
-- {source,target}_pos2 will always have the highest co-ordinates now
|
|
|
|
local node_id_air = minetest.get_content_id("air")
|
|
|
|
-- Fetch the nodes in the source area
|
|
local manip_source, area_source = worldedit.manip_helpers.init(source_pos1, source_pos2)
|
|
local data_source = manip_source:get_data()
|
|
|
|
-- Fetch a manip for the target area
|
|
local manip_target, area_target = worldedit.manip_helpers.init(target_pos1, target_pos2)
|
|
local data_target = manip_target:get_data()
|
|
|
|
-- z y x is the preferred loop order (because CPU cache, since then we're iterating linearly through the data array backwards. This only holds true for little-endian machines however)
|
|
|
|
for z = source_pos2.z, source_pos1.z, -1 do
|
|
for y = source_pos2.y, source_pos1.y, -1 do
|
|
for x = source_pos2.x, source_pos1.x, -1 do
|
|
local source = Vector3.new(x, y, z)
|
|
local source_i = area_source:index(x, y, z)
|
|
local target = source:subtract(offset)
|
|
local target_i = area_target:index(target.x, target.y, target.z)
|
|
|
|
data_target[target_i] = data_source[source_i]
|
|
data_source[source_i] = node_id_air
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Save the modified nodes back to disk & return
|
|
-- Note that we save the source region *first* to avoid issues with overlap
|
|
worldedit.manip_helpers.finish(manip_source, data_source)
|
|
worldedit.manip_helpers.finish(manip_target, data_target)
|
|
|
|
return true, worldedit.volume(target_pos1, target_pos2)
|
|
end
|