Minetest-WorldEdit/worldedit/manipulations.lua
sfan5 92fe95fab7 Make //fixlight work again
The dig-air-nodes method seems to have stopped working a few Minetest version ago
2017-01-02 19:03:21 +01:00

627 lines
19 KiB
Lua

--- Generic node manipulations.
-- @module worldedit.manipulations
local mh = worldedit.manip_helpers
--- Sets a region to `node_names`.
-- @param pos1
-- @param pos2
-- @param node_names Node name or list of node names.
-- @return The number of nodes set.
function worldedit.set(pos1, pos2, node_names)
pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local manip, area = mh.init(pos1, pos2)
local data = mh.get_empty_data(area)
if type(node_names) == "string" then -- Only one type of node
local id = minetest.get_content_id(node_names)
-- Fill area with node
for i in area:iterp(pos1, pos2) do
data[i] = id
end
else -- Several types of nodes specified
local node_ids = {}
for i, v in ipairs(node_names) do
node_ids[i] = minetest.get_content_id(v)
end
-- Fill area randomly with nodes
local id_count, rand = #node_ids, math.random
for i in area:iterp(pos1, pos2) do
data[i] = node_ids[rand(id_count)]
end
end
mh.finish(manip, data)
return worldedit.volume(pos1, pos2)
end
--- Replaces all instances of `search_node` with `replace_node` in a region.
-- When `inverse` is `true`, replaces all instances that are NOT `search_node`.
-- @return The number of nodes replaced.
function worldedit.replace(pos1, pos2, search_node, replace_node, inverse)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local manip, area = mh.init(pos1, pos2)
local data = manip:get_data()
local search_id = minetest.get_content_id(search_node)
local replace_id = minetest.get_content_id(replace_node)
local count = 0
--- TODO: This could be shortened by checking `inverse` in the loop,
-- but that would have a speed penalty. Is the penalty big enough
-- to matter?
if not inverse then
for i in area:iterp(pos1, pos2) do
if data[i] == search_id then
data[i] = replace_id
count = count + 1
end
end
else
for i in area:iterp(pos1, pos2) do
if data[i] ~= search_id then
data[i] = replace_id
count = count + 1
end
end
end
mh.finish(manip, data)
return count
end
--- Duplicates a region `amount` times with offset vector `direction`.
-- Stacking is spread across server steps, one copy per step.
-- @return The number of nodes stacked.
function worldedit.stack2(pos1, pos2, direction, amount, finished)
local i = 0
local translated = {x=0, y=0, z=0}
local function next_one()
if i < amount then
i = i + 1
translated.x = translated.x + direction.x
translated.y = translated.y + direction.y
translated.z = translated.z + direction.z
worldedit.copy2(pos1, pos2, translated)
minetest.after(0, next_one)
else
if finished then
finished()
end
end
end
next_one()
return worldedit.volume(pos1, pos2) * amount
end
--- Copies a region along `axis` by `amount` nodes.
-- @param pos1
-- @param pos2
-- @param axis Axis ("x", "y", or "z")
-- @param amount
-- @return The number of nodes copied.
function worldedit.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 when negative to avoid corruption.
-- FIXME: Lots of code duplication here.
if amount < 0 then
local pos = {}
pos.x = pos1.x
while pos.x <= pos2.x do
pos.y = pos1.y
while pos.y <= pos2.y do
pos.z = pos1.z
while pos.z <= pos2.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
else
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
end
return worldedit.volume(pos1, pos2)
end
--- Copies a region by offset vector `off`.
-- @param pos1
-- @param pos2
-- @param off
-- @return The number of nodes copied.
function worldedit.copy2(pos1, pos2, off)
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
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 newpos = vector.add(pos, off) -- Calculate new position
set_node(newpos, node) -- Copy node to new position
get_meta(newpos):from_table(meta) -- Set metadata of new node
pos.z = pos.z - 1
end
pos.y = pos.y - 1
end
pos.x = pos.x - 1
end
return worldedit.volume(pos1, pos2)
end
--- Moves a region along `axis` by `amount` nodes.
-- @return The number of nodes moved.
function worldedit.move(pos1, pos2, axis, amount)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
worldedit.keep_loaded(pos1, pos2)
--- TODO: Move slice by slice using schematic method in the move axis
-- and transfer metadata in separate loop (and if the amount is
-- greater than the length in the axis, copy whole thing at a time and
-- erase original after, using schematic method).
local get_node, get_meta, set_node, remove_node = minetest.get_node,
minetest.get_meta, minetest.set_node, minetest.remove_node
-- Copy things backwards when negative to avoid corruption.
--- FIXME: Lots of code duplication here.
if amount < 0 then
local pos = {}
pos.x = pos1.x
while pos.x <= pos2.x do
pos.y = pos1.y
while pos.y <= pos2.y do
pos.z = pos1.z
while pos.z <= pos2.z do
local node = get_node(pos) -- Obtain current node
local meta = get_meta(pos):to_table() -- Get metadata of current node
remove_node(pos) -- Remove current node
local value = pos[axis] -- Store current position
pos[axis] = value + amount -- Move along axis
set_node(pos, node) -- Move 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
else
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 metadata of current node
remove_node(pos) -- Remove current node
local value = pos[axis] -- Store current position
pos[axis] = value + amount -- Move along axis
set_node(pos, node) -- Move 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
end
return worldedit.volume(pos1, pos2)
end
--- Duplicates a region along `axis` `amount` times.
-- Stacking is spread across server steps, one copy per step.
-- @param pos1
-- @param pos2
-- @param axis Axis direction, "x", "y", or "z".
-- @param count
-- @return The number of nodes stacked.
function worldedit.stack(pos1, pos2, axis, count)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local length = pos2[axis] - pos1[axis] + 1
if count < 0 then
count = -count
length = -length
end
local amount = 0
local copy = worldedit.copy
local i = 1
function next_one()
if i <= count then
i = i + 1
amount = amount + length
copy(pos1, pos2, axis, amount)
minetest.after(0, next_one)
end
end
next_one()
return worldedit.volume(pos1, pos2) * count
end
--- Stretches a region by a factor of positive integers along the X, Y, and Z
-- axes, respectively, with `pos1` as the origin.
-- @param pos1
-- @param pos2
-- @param stretch_x Amount to stretch along X axis.
-- @param stretch_y Amount to stretch along Y axis.
-- @param stretch_z Amount to stretch along Z axis.
-- @return The number of nodes scaled.
-- @return The new scaled position 1.
-- @return The new scaled position 2.
function worldedit.stretch(pos1, pos2, stretch_x, stretch_y, stretch_z)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
-- Prepare schematic of large node
local get_node, get_meta, place_schematic = minetest.get_node,
minetest.get_meta, minetest.place_schematic
local placeholder_node = {name="", param1=255, param2=0}
local nodes = {}
for i = 1, stretch_x * stretch_y * stretch_z do
nodes[i] = placeholder_node
end
local schematic = {size={x=stretch_x, y=stretch_y, z=stretch_z}, data=nodes}
local size_x, size_y, size_z = stretch_x - 1, stretch_y - 1, stretch_z - 1
local new_pos2 = {
x = pos1.x + (pos2.x - pos1.x) * stretch_x + size_x,
y = pos1.y + (pos2.y - pos1.y) * stretch_y + size_y,
z = pos1.z + (pos2.z - pos1.z) * stretch_z + size_z,
}
worldedit.keep_loaded(pos1, new_pos2)
local pos = {x=pos2.x, y=0, z=0}
local big_pos = {x=0, y=0, z=0}
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) -- Get current node
local meta = get_meta(pos):to_table() -- Get meta of current node
-- Calculate far corner of the big node
local pos_x = pos1.x + (pos.x - pos1.x) * stretch_x
local pos_y = pos1.y + (pos.y - pos1.y) * stretch_y
local pos_z = pos1.z + (pos.z - pos1.z) * stretch_z
-- Create large node
placeholder_node.name = node.name
placeholder_node.param2 = node.param2
big_pos.x, big_pos.y, big_pos.z = pos_x, pos_y, pos_z
place_schematic(big_pos, schematic)
-- Fill in large node meta
if next(meta.fields) ~= nil or next(meta.inventory) ~= nil then
-- Node has meta fields
for x = 0, size_x do
for y = 0, size_y do
for z = 0, size_z do
big_pos.x = pos_x + x
big_pos.y = pos_y + y
big_pos.z = pos_z + z
-- Set metadata of new node
get_meta(big_pos):from_table(meta)
end
end
end
end
pos.z = pos.z - 1
end
pos.y = pos.y - 1
end
pos.x = pos.x - 1
end
return worldedit.volume(pos1, pos2) * stretch_x * stretch_y * stretch_z, pos1, new_pos2
end
--- Transposes a region between two axes.
-- @return The number of nodes transposed.
-- @return The new transposed position 1.
-- @return The new transposed position 2.
function worldedit.transpose(pos1, pos2, axis1, axis2)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local compare
local extent1, extent2 = pos2[axis1] - pos1[axis1], pos2[axis2] - pos1[axis2]
if extent1 > extent2 then
compare = function(extent1, extent2)
return extent1 > extent2
end
else
compare = function(extent1, extent2)
return extent1 < extent2
end
end
-- Calculate the new position 2 after transposition
local new_pos2 = {x=pos2.x, y=pos2.y, z=pos2.z}
new_pos2[axis1] = pos1[axis1] + extent2
new_pos2[axis2] = pos1[axis2] + extent1
local upper_bound = {x=pos2.x, y=pos2.y, z=pos2.z}
if upper_bound[axis1] < new_pos2[axis1] then upper_bound[axis1] = new_pos2[axis1] end
if upper_bound[axis2] < new_pos2[axis2] then upper_bound[axis2] = new_pos2[axis2] end
worldedit.keep_loaded(pos1, upper_bound)
local pos = {x=pos1.x, y=0, z=0}
local get_node, get_meta, set_node = minetest.get_node,
minetest.get_meta, minetest.set_node
while pos.x <= pos2.x do
pos.y = pos1.y
while pos.y <= pos2.y do
pos.z = pos1.z
while pos.z <= pos2.z do
local extent1, extent2 = pos[axis1] - pos1[axis1], pos[axis2] - pos1[axis2]
if compare(extent1, extent2) then -- Transpose only if below the diagonal
local node1 = get_node(pos)
local meta1 = get_meta(pos):to_table()
local value1, value2 = pos[axis1], pos[axis2] -- Save position values
pos[axis1], pos[axis2] = pos1[axis1] + extent2, pos1[axis2] + extent1 -- Swap axis extents
local node2 = get_node(pos)
local meta2 = get_meta(pos):to_table()
set_node(pos, node1)
get_meta(pos):from_table(meta1)
pos[axis1], pos[axis2] = value1, value2 -- Restore position values
set_node(pos, node2)
get_meta(pos):from_table(meta2)
end
pos.z = pos.z + 1
end
pos.y = pos.y + 1
end
pos.x = pos.x + 1
end
return worldedit.volume(pos1, pos2), pos1, new_pos2
end
--- Flips a region along `axis`.
-- @return The number of nodes flipped.
function worldedit.flip(pos1, pos2, axis)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
worldedit.keep_loaded(pos1, pos2)
--- TODO: Flip the region slice by slice along the flip axis using schematic method.
local pos = {x=pos1.x, y=0, z=0}
local start = pos1[axis] + pos2[axis]
pos2[axis] = pos1[axis] + math.floor((pos2[axis] - pos1[axis]) / 2)
local get_node, get_meta, set_node = minetest.get_node,
minetest.get_meta, minetest.set_node
while pos.x <= pos2.x do
pos.y = pos1.y
while pos.y <= pos2.y do
pos.z = pos1.z
while pos.z <= pos2.z do
local node1 = get_node(pos)
local meta1 = get_meta(pos):to_table()
local value = pos[axis] -- Save position
pos[axis] = start - value -- Shift position
local node2 = get_node(pos)
local meta2 = get_meta(pos):to_table()
set_node(pos, node1)
get_meta(pos):from_table(meta1)
pos[axis] = value -- Restore position
set_node(pos, node2)
get_meta(pos):from_table(meta2)
pos.z = pos.z + 1
end
pos.y = pos.y + 1
end
pos.x = pos.x + 1
end
return worldedit.volume(pos1, pos2)
end
--- Rotates a region clockwise around an axis.
-- @param pos1
-- @param pos2
-- @param axis Axis ("x", "y", or "z").
-- @param angle Angle in degrees (90 degree increments only).
-- @return The number of nodes rotated.
-- @return The new first position.
-- @return The new second position.
function worldedit.rotate(pos1, pos2, axis, angle)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local other1, other2 = worldedit.get_axis_others(axis)
angle = angle % 360
local count
if angle == 90 then
worldedit.flip(pos1, pos2, other1)
count, pos1, pos2 = worldedit.transpose(pos1, pos2, other1, other2)
elseif angle == 180 then
worldedit.flip(pos1, pos2, other1)
count = worldedit.flip(pos1, pos2, other2)
elseif angle == 270 then
worldedit.flip(pos1, pos2, other2)
count, pos1, pos2 = worldedit.transpose(pos1, pos2, other1, other2)
else
error("Only 90 degree increments are supported!")
end
return count, pos1, pos2
end
--- Rotates all oriented nodes in a region clockwise around the Y axis.
-- @param pos1
-- @param pos2
-- @param angle Angle in degrees (90 degree increments only).
-- @return The number of nodes oriented.
-- TODO: Support 6D facedir rotation along arbitrary axis.
function worldedit.orient(pos1, pos2, angle)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local registered_nodes = minetest.registered_nodes
local wallmounted = {
[90] = {[0]=0, 1, 5, 4, 2, 3},
[180] = {[0]=0, 1, 3, 2, 5, 4},
[270] = {[0]=0, 1, 4, 5, 3, 2}
}
local facedir = {
[90] = {[0]=1, 2, 3, 0},
[180] = {[0]=2, 3, 0, 1},
[270] = {[0]=3, 0, 1, 2}
}
angle = angle % 360
if angle == 0 then
return 0
end
if angle % 90 ~= 0 then
error("Only 90 degree increments are supported!")
end
local wallmounted_substitution = wallmounted[angle]
local facedir_substitution = facedir[angle]
worldedit.keep_loaded(pos1, pos2)
local count = 0
local set_node, get_node, get_meta, swap_node = minetest.set_node,
minetest.get_node, minetest.get_meta, minetest.swap_node
local pos = {x=pos1.x, y=0, z=0}
while pos.x <= pos2.x do
pos.y = pos1.y
while pos.y <= pos2.y do
pos.z = pos1.z
while pos.z <= pos2.z do
local node = get_node(pos)
local def = registered_nodes[node.name]
if def then
if def.paramtype2 == "wallmounted" then
node.param2 = wallmounted_substitution[node.param2]
local meta = get_meta(pos):to_table()
set_node(pos, node)
get_meta(pos):from_table(meta)
count = count + 1
elseif def.paramtype2 == "facedir" then
node.param2 = facedir_substitution[node.param2]
local meta = get_meta(pos):to_table()
set_node(pos, node)
get_meta(pos):from_table(meta)
count = count + 1
end
end
pos.z = pos.z + 1
end
pos.y = pos.y + 1
end
pos.x = pos.x + 1
end
return count
end
--- Attempts to fix the lighting in a region.
-- @return The number of nodes updated.
function worldedit.fixlight(pos1, pos2)
local pos1, pos2 = worldedit.sort_pos(pos1, pos2)
local vmanip = minetest.get_voxel_manip(pos1, pos2)
vmanip:write_to_map()
vmanip:update_map() -- this updates the lighting
return worldedit.volume(pos1, pos2)
end
--- Clears all objects in a region.
-- @return The number of objects cleared.
function worldedit.clear_objects(pos1, pos2)
pos1, pos2 = worldedit.sort_pos(pos1, pos2)
worldedit.keep_loaded(pos1, pos2)
-- Offset positions to include full nodes (positions are in the center of nodes)
local pos1x, pos1y, pos1z = pos1.x - 0.5, pos1.y - 0.5, pos1.z - 0.5
local pos2x, pos2y, pos2z = pos2.x + 0.5, pos2.y + 0.5, pos2.z + 0.5
-- Center of region
local center = {
x = pos1x + ((pos2x - pos1x) / 2),
y = pos1y + ((pos2y - pos1y) / 2),
z = pos1z + ((pos2z - pos1z) / 2)
}
-- Bounding sphere radius
local radius = math.sqrt(
(center.x - pos1x) ^ 2 +
(center.y - pos1y) ^ 2 +
(center.z - pos1z) ^ 2)
local count = 0
for _, obj in pairs(minetest.get_objects_inside_radius(center, radius)) do
local entity = obj:get_luaentity()
-- Avoid players and WorldEdit entities
if not obj:is_player() and (not entity or
not entity.name:find("^worldedit:")) then
local pos = obj:getpos()
if pos.x >= pos1x and pos.x <= pos2x and
pos.y >= pos1y and pos.y <= pos2y and
pos.z >= pos1z and pos.z <= pos2z then
-- Inside region
obj:remove()
count = count + 1
end
end
end
return count
end