mtcontrib/Minetest-WorldEdit
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Always use faster vmanip copying code

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Since the code has two arrays of the area before and after,
the copy order is totally irrelevant.
Of course, this doesn't apply to metadata and we still need
to do that backwards.
This commit is contained in:
sfan5 2019-09-17 01:20:10 +02:00
parent f6298d7b87
commit 2a4aaae8a2
1 changed files with 18 additions and 41 deletions
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59
worldedit/manipulations.lua
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@ -152,57 +152,21 @@ end
function worldedit.copy(pos1, pos2, axis, amount)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local dim = vector.add(vector.subtract(pos2, pos1), 1)
if amount > 0 and amount < dim[axis] then
-- Source and destination region are overlapping and moving needs to
-- happen in reverse.
-- FIXME: I can't be bothered, so just defer to the legacy code for now.
return worldedit.legacy_copy(pos1, pos2, axis, amount)
end
-- Decide if we need to copy stuff backwards (only applies to metadata)
local backwards = amount > 0 and amount < (pos2[axis] - pos1[axis] + 1)
local off = {x=0, y=0, z=0}
off[axis] = amount
return worldedit.copy2(pos1, pos2, off)
end
-- This function is not offical part of the API and may be removed at any time.
function worldedit.legacy_copy(pos1, pos2, axis, amount)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
worldedit.keep_loaded(pos1, pos2)
local get_node, get_meta, set_node = minetest.get_node,
minetest.get_meta, minetest.set_node
-- Copy things backwards
local pos = {}
pos.x = pos2.x
while pos.x >= pos1.x do
pos.y = pos2.y
while pos.y >= pos1.y do
pos.z = pos2.z
while pos.z >= pos1.z do
local node = get_node(pos) -- Obtain current node
local meta = get_meta(pos):to_table() -- Get meta of current node
local value = pos[axis] -- Store current position
pos[axis] = value + amount -- Move along axis
set_node(pos, node) -- Copy node to new position
get_meta(pos):from_table(meta) -- Set metadata of new node
pos[axis] = value -- Restore old position
pos.z = pos.z - 1
end
pos.y = pos.y - 1
end
pos.x = pos.x - 1
end
return worldedit.volume(pos1, pos2)
return worldedit.copy2(pos1, pos2, off, backwards)
end
--- Copies a region by offset vector `off`.
-- @param pos1
-- @param pos2
-- @param off
-- @param meta_backwards (not officially part of API)
-- @return The number of nodes copied.
function worldedit.copy2(pos1, pos2, off)
function worldedit.copy2(pos1, pos2, off, meta_backwards)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local src_manip, src_area = mh.init(pos1, pos2)
@ -258,6 +222,18 @@ function worldedit.copy2(pos1, pos2, off)
-- Copy metadata
local get_meta = minetest.get_meta
if meta_backwards then
for z = dim.z-1, 0, -1 do
for y = dim.y-1, 0, -1 do
for x = dim.x-1, 0, -1 do
local pos = {x=pos1.x+x, y=pos1.y+y, z=pos1.z+z}
local meta = get_meta(pos):to_table()
pos = vector.add(pos, off)
get_meta(pos):from_table(meta)
end
end
end
else
for z = 0, dim.z-1 do
for y = 0, dim.y-1 do
for x = 0, dim.x-1 do
@ -268,6 +244,7 @@ function worldedit.copy2(pos1, pos2, off)
end
end
end
end
return worldedit.volume(pos1, pos2)
end