Use modpack for easier installation (idea is taken from cornernote's mod format), fix some grammar in API reference, move chat command reference and API reference to separate files.

1 files changed, 707 insertions, 0 deletions

diff --git a/worldedit/functions.lua b/worldedit/functions.lua
new file mode 100644
index 0000000..2d949c6
--- /dev/null
+++ b/worldedit/functions.lua
@@ -0,0 +1,707 @@
+--modifies positions `pos1` and `pos2` so that each component of `pos1` is less than or equal to its corresponding conent of `pos2`, returning two new positions

+worldedit.sort_pos = function(pos1, pos2)

+	pos1 = {x=pos1.x, y=pos1.y, z=pos1.z}

+	pos2 = {x=pos2.x, y=pos2.y, z=pos2.z}

+	if pos1.x > pos2.x then

+		pos2.x, pos1.x = pos1.x, pos2.x

+	end

+	if pos1.y > pos2.y then

+		pos2.y, pos1.y = pos1.y, pos2.y

+	end

+	if pos1.z > pos2.z then

+		pos2.z, pos1.z = pos1.z, pos2.z

+	end

+	return pos1, pos2

+end

+

+--determines the volume of the region defined by positions `pos1` and `pos2`, returning the volume

+worldedit.volume = function(pos1, pos2)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	return (pos2.x - pos1.x + 1) * (pos2.y - pos1.y + 1) * (pos2.z - pos1.z + 1)

+end

+

+--sets a region defined by positions `pos1` and `pos2` to `nodename`, returning the number of nodes filled

+worldedit.set = function(pos1, pos2, nodename)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	local env = minetest.env

+

+	local node = {name=nodename}

+	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

+				env:add_node(pos, 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

+

+--replaces all instances of `searchnode` with `replacenode` in a region defined by positions `pos1` and `pos2`, returning the number of nodes replaced

+worldedit.replace = function(pos1, pos2, searchnode, replacenode)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	local env = minetest.env

+

+	if minetest.registered_nodes[searchnode] == nil then

+		searchnode = "default:" .. searchnode

+	end

+	if minetest.registered_nodes[replacenode] == nil then

+		replacenode = "default:" .. replacenode

+	end

+

+	local pos = {x=pos1.x, y=0, z=0}

+	local node = {name=replacenode}

+	local count = 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

+				if env:get_node(pos).name == searchnode then

+					env:add_node(pos, node)

+					count = count + 1

+				end

+				pos.z = pos.z + 1

+			end

+			pos.y = pos.y + 1

+		end

+		pos.x = pos.x + 1

+	end

+	return count

+end

+

+--adds a hollow sphere at `pos` with radius `radius`, composed of `nodename`, returning the number of nodes added

+worldedit.hollow_sphere = function(pos, radius, nodename) --wip: use bresenham sphere for maximum speed

+	local node = {name=nodename}

+	local pos1 = {x=0, y=0, z=0}

+	local full_radius = radius * radius + radius

+	local env = minetest.env

+	for x = -radius, radius do

+		pos1.x = pos.x + x

+		for y = -radius, radius do

+			pos1.y = pos.y + y

+			for z = -radius, radius do

+				if x*x+y*y+z*z >= (radius-1) * (radius-1) + (radius-1) and x*x+y*y+z*z <= full_radius then

+					pos1.z = pos.z + z

+					env:add_node({x=pos.x+x,y=pos.y+y,z=pos.z+z}, node)

+				end

+			end

+		end

+	end

+end

+

+--adds a sphere at `pos` with radius `radius`, composed of `nodename`, returning the number of nodes added

+worldedit.sphere = function(pos, radius, nodename) --wip: use bresenham sphere for maximum speed

+	local node = {name=nodename}

+	local pos1 = {x=0, y=0, z=0}

+	local full_radius = radius * radius + radius

+	local count = 0

+	local env = minetest.env

+	for x = -radius, radius do

+		pos1.x = pos.x + x

+		for y = -radius, radius do

+			pos1.y = pos.y + y

+			for z = -radius, radius do

+				if x*x+y*y+z*z <= full_radius then

+					pos1.z = pos.z + z

+					env:add_node(pos1, node)

+					count = count + 1

+				end

+			end

+		end

+	end

+	return count

+end

+

+--adds a hollow cylinder at `pos` along the `axis` axis ("x" or "y" or "z") with length `length` and radius `radius`, composed of `nodename`, returning the number of nodes added

+worldedit.hollow_cylinder = function(pos, axis, length, radius, nodename)

+	local other1, other2

+	if axis == "x" then

+		other1, other2 = "y", "z"

+	elseif axis == "y" then

+		other1, other2 = "x", "z"

+	else --axis == "z"

+		other1, other2 = "x", "y"

+	end

+

+	local env = minetest.env

+	local currentpos = {x=pos.x, y=pos.y, z=pos.z}

+	local node = {name=nodename}

+	local count = 0

+	local step = 1

+	if length < 0 then

+		length = -length

+		step = -1

+	end

+	for i = 1, length do

+		local offset1, offset2 = 0, radius

+		local delta = -radius

+		while offset1 <= offset2 do

+			--add node at each octant

+			local first1, first2 = pos[other1] + offset1, pos[other1] - offset1

+			local second1, second2 = pos[other2] + offset2, pos[other2] - offset2

+			currentpos[other1], currentpos[other2] = first1, second1

+			env:add_node(currentpos, node) --octant 1

+			currentpos[other1] = first2

+			env:add_node(currentpos, node) --octant 4

+			currentpos[other2] = second2

+			env:add_node(currentpos, node) --octant 5

+			currentpos[other1] = first1

+			env:add_node(currentpos, node) --octant 8

+			local first1, first2 = pos[other1] + offset2, pos[other1] - offset2

+			local second1, second2 = pos[other2] + offset1, pos[other2] - offset1

+			currentpos[other1], currentpos[other2] = first1, second1

+			env:add_node(currentpos, node) --octant 2

+			currentpos[other1] = first2

+			env:add_node(currentpos, node) --octant 3

+			currentpos[other2] = second2

+			env:add_node(currentpos, node) --octant 6

+			currentpos[other1] = first1

+			env:add_node(currentpos, node) --octant 7

+

+			count = count + 8 --wip: broken

+

+			--move to next location

+			delta = delta + (offset1 * 2) + 1

+			if delta >= 0 then

+				offset2 = offset2 - 1

+				delta = delta - (offset2 * 2)

+			end

+			offset1 = offset1 + 1

+		end

+		currentpos[axis] = currentpos[axis] + step

+	end

+	return count

+end

+

+--adds a cylinder at `pos` along the `axis` axis ("x" or "y" or "z") with length `length` and radius `radius`, composed of `nodename`, returning the number of nodes added

+worldedit.cylinder = function(pos, axis, length, radius, nodename)

+	local other1, other2

+	if axis == "x" then

+		other1, other2 = "y", "z"

+	elseif axis == "y" then

+		other1, other2 = "x", "z"

+	else --axis == "z"

+		other1, other2 = "x", "y"

+	end

+

+	local env = minetest.env

+	local currentpos = {x=pos.x, y=pos.y, z=pos.z}

+	local node = {name=nodename}

+	local count = 0

+	local step = 1

+	if length < 0 then

+		length = -length

+		step = -1

+	end

+	for i = 1, length do

+		local offset1, offset2 = 0, radius

+		local delta = -radius

+		while offset1 <= offset2 do

+			--connect each pair of octants

+			currentpos[other1] = pos[other1] - offset1

+			local second1, second2 = pos[other2] + offset2, pos[other2] - offset2

+			for i = 0, offset1 * 2 do

+				currentpos[other2] = second1

+				env:add_node(currentpos, node) --octant 1 to 4

+				currentpos[other2] = second2

+				env:add_node(currentpos, node) --octant 5 to 8

+				currentpos[other1] = currentpos[other1] + 1

+			end

+			currentpos[other1] = pos[other1] - offset2

+			local second1, second2 = pos[other2] + offset1, pos[other2] - offset1

+			for i = 0, offset2 * 2 do

+				currentpos[other2] = second1

+				env:add_node(currentpos, node) --octant 2 to 3

+				currentpos[other2] = second2

+				env:add_node(currentpos, node) --octant 6 to 7

+				currentpos[other1] = currentpos[other1] + 1

+			end

+

+			count = count + (offset1 * 4) + (offset2 * 4) + 4 --wip: broken

+

+			--move to next location

+			delta = delta + (offset1 * 2) + 1

+			offset1 = offset1 + 1

+			if delta >= 0 then

+				offset2 = offset2 - 1

+				delta = delta - (offset2 * 2)

+			end

+		end

+		currentpos[axis] = currentpos[axis] + step

+	end

+	return count

+end

+

+--adds a pyramid at `pos` with height `height`, composed of `nodename`, returning the number of nodes added

+worldedit.pyramid = function(pos, height, nodename)

+	local pos1x, pos1y, pos1z = pos.x - height, pos.y, pos.z - height

+	local pos2x, pos2y, pos2z = pos.x + height, pos.y + height, pos.z + height

+	local pos = {x=0, y=pos1y, z=0}

+

+	local count = 0

+	local node = {name=nodename}

+	local env = minetest.env

+	while pos.y <= pos2y do --each vertical level of the pyramid

+		pos.x = pos1x

+		while pos.x <= pos2x do

+			pos.z = pos1z

+			while pos.z <= pos2z do

+				env:add_node(pos, node)

+				pos.z = pos.z + 1

+			end

+			pos.x = pos.x + 1

+		end

+		count = count + ((pos2y - pos.y) * 2 + 1) ^ 2

+		pos.y = pos.y + 1

+

+		pos1x, pos2x = pos1x + 1, pos2x - 1

+		pos1z, pos2z = pos1z + 1, pos2z - 1

+

+	end

+	return count

+end

+

+--adds a spiral at `pos` with width `width`, height `height`, space between walls `spacer`, composed of `nodename`, returning the number of nodes added

+worldedit.spiral = function(pos, width, height, spacer, nodename) --wip: clean this up

+	-- spiral matrix - http://rosettacode.org/wiki/Spiral_matrix#Lua

+	av, sn = math.abs, function(s) return s~=0 and s/av(s) or 0 end

+	local function sindex(z, x) -- returns the value at (x, z) in a spiral that starts at 1 and goes outwards

+		if z == -x and z >= x then return (2*z+1)^2 end

+		local l = math.max(av(z), av(x))

+		return (2*l-1)^2+4*l+2*l*sn(x+z)+sn(z^2-x^2)*(l-(av(z)==l and sn(z)*x or sn(x)*z)) -- OH GOD WHAT

+	end

+	local function spiralt(side)

+		local ret, id, start, stop = {}, 0, math.floor((-side+1)/2), math.floor((side-1)/2)

+		for i = 1, side do

+			for j = 1, side do

+				local id = side^2 - sindex(stop - i + 1,start + j - 1)

+				ret[id] = {x=i,z=j}

+			end

+		end

+		return ret

+	end

+	-- connect the joined parts

+	local spiral = spiralt(width)

+	height = tonumber(height)

+	if height < 1 then height = 1 end

+	spacer = tonumber(spacer)-1

+	if spacer < 1 then spacer = 1 end

+	local count = 0

+	local node = {name=nodename}

+	local np,lp

+	for y=0,height do

+		lp = nil

+		for _,v in ipairs(spiral) do

+			np = {x=pos.x+v.x*spacer, y=pos.y+y, z=pos.z+v.z*spacer}

+			if lp~=nil then

+				if lp.x~=np.x then 

+					if lp.x<np.x then 

+						for i=lp.x+1,np.x do

+							minetest.env:add_node({x=i, y=np.y, z=np.z}, node)

+							count = count + 1

+						end

+					else

+						for i=np.x,lp.x-1 do

+							minetest.env:add_node({x=i, y=np.y, z=np.z}, node)

+							count = count + 1

+						end

+					end

+				end

+				if lp.z~=np.z then 

+					if lp.z<np.z then 

+						for i=lp.z+1,np.z do

+							minetest.env:add_node({x=np.x, y=np.y, z=i}, node)

+							count = count + 1

+						end

+					else

+						for i=np.z,lp.z-1 do

+							minetest.env:add_node({x=np.x, y=np.y, z=i}, node)

+							count = count + 1

+						end

+					end

+				end

+			end

+			lp = np

+		end

+	end

+	return count

+end

+

+--copies the region defined by positions `pos1` and `pos2` along the `axis` axis ("x" or "y" or "z") by `amount` nodes, returning the number of nodes copied

+worldedit.copy = function(pos1, pos2, axis, amount)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	local env = minetest.env

+

+	if amount < 0 then

+		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 = env:get_node(pos) --obtain current node

+					local meta = env:get_meta(pos):to_table() --get meta of current node

+					local value = pos[axis] --store current position

+					pos[axis] = value + amount --move along axis

+					env:add_node(pos, node) --copy node to new position

+					env: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 = {x=pos2.x, 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 = minetest.env:get_node(pos) --obtain current node

+					local meta = env:get_meta(pos):to_table() --get meta of current node

+					local value = pos[axis] --store current position

+					pos[axis] = value + amount --move along axis

+					minetest.env:add_node(pos, node) --copy node to new position

+					env: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

+

+--moves the region defined by positions `pos1` and `pos2` along the `axis` axis ("x" or "y" or "z") by `amount` nodes, returning the number of nodes moved

+worldedit.move = function(pos1, pos2, axis, amount)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	local env = minetest.env

+

+	if amount < 0 then

+		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 = env:get_node(pos) --obtain current node

+					local meta = env:get_meta(pos):to_table() --get metadata of current node

+					env:remove_node(pos)

+					local value = pos[axis] --store current position

+					pos[axis] = value + amount --move along axis

+					env:add_node(pos, node) --move node to new position

+					env: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 = {x=pos2.x, 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 = env:get_node(pos) --obtain current node

+					local meta = env:get_meta(pos):to_table() --get metadata of current node

+					env:remove_node(pos)

+					local value = pos[axis] --store current position

+					pos[axis] = value + amount --move along axis

+					env:add_node(pos, node) --move node to new position

+					env: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 the region defined by positions `pos1` and `pos2` along the `axis` axis ("x" or "y" or "z") `count` times, returning the number of nodes stacked

+worldedit.stack = function(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

+	for i = 1, count do

+		amount = amount + length

+		copy(pos1, pos2, axis, amount)

+	end

+	return worldedit.volume(pos1, pos2)

+end

+

+--transposes a region defined by the positions `pos1` and `pos2` between the `axis1` and `axis2` axes, returning the number of nodes transposed

+worldedit.transpose = function(pos1, pos2, axis1, axis2)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+

+	local pos = {x=pos1.x, y=0, z=0}

+	local env = minetest.env

+	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 extent1 < extent2 then

+					local node1 = env:get_node(pos)

+					local meta1 = env:get_meta(pos):to_table()

+					local value1, value2 = pos[axis1], pos[axis2]

+					pos[axis1], pos[axis2] = value1 + extent2, value2 + extent1

+					local node2 = env:get_node(pos)

+					local meta2 = env:get_meta(pos):to_table()

+					env:add_node(pos, node1)

+					env:get_meta(pos):from_table(meta1)

+					pos[axis1], pos[axis2] = value1, value2

+					env:add_node(pos, node2)

+					env: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)

+end

+

+--flips a region defined by the positions `pos1` and `pos2` along the `axis` axis ("x" or "y" or "z"), returning the number of nodes flipped

+worldedit.flip = function(pos1, pos2, axis)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+

+	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 env = minetest.env

+	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 = env:get_node(pos)

+				local meta1 = env:get_meta(pos):to_table()

+				local value = pos[axis]

+				pos[axis] = start - value

+				local node2 = env:get_node(pos)

+				local meta2 = env:get_meta(pos):to_table()

+				env:add_node(pos, node1)

+				env:get_meta(pos):from_table(meta1)

+				pos[axis] = value

+				env:add_node(pos, node2)

+				env: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 defined by the positions `pos1` and `pos2` by `angle` degrees clockwise around axis `axis` (90 degree increment), returning the number of nodes rotated

+worldedit.rotate = function(pos1, pos2, axis, angle)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+

+	local axis1, axis2

+	if axis == "x" then

+		axis1, axis2 = "z", "y"

+	elseif axis == "y" then

+		axis1, axis2 = "x", "z"

+	else --axis == "z"

+		axis1, axis2 = "y", "x"

+	end

+	angle = angle % 360

+

+	if angle == 90 then

+		worldedit.transpose(pos1, pos2, axis1, axis2)

+		worldedit.flip(pos1, pos2, axis2)

+	elseif angle == 180 then

+		worldedit.flip(pos1, pos2, axis1)

+		worldedit.flip(pos1, pos2, axis2)

+	elseif angle == 270 then

+		worldedit.transpose(pos1, pos2, axis1, axis2)

+		worldedit.flip(pos1, pos2, axis1)

+	end

+	return worldedit.volume(pos1, pos2)

+end

+

+--digs a region defined by positions `pos1` and `pos2`, returning the number of nodes dug

+worldedit.dig = function(pos1, pos2)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	local env = minetest.env

+

+	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

+				env:dig_node(pos)

+				pos.z = pos.z + 1

+			end

+			pos.y = pos.y + 1

+		end

+		pos.x = pos.x + 1

+	end

+	return worldedit.volume(pos1, pos2)

+end

+

+--converts the region defined by positions `pos1` and `pos2` into a single string, returning the serialized data and the number of nodes serialized

+worldedit.serialize = function(pos1, pos2)

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	local pos = {x=pos1.x, y=0, z=0}

+	local count = 0

+	local result = {}

+	local env = minetest.env

+	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 = env:get_node(pos)

+				if node.name ~= "air" and node.name ~= "ignore" then

+					count = count + 1

+					result[count] = pos.x - pos1.x .. " " .. pos.y - pos1.y .. " " .. pos.z - pos1.z .. " " .. node.name .. " " .. node.param1 .. " " .. node.param2

+				end

+				pos.z = pos.z + 1

+			end

+			pos.y = pos.y + 1

+		end

+		pos.x = pos.x + 1

+	end

+	result = table.concat(result, "\n")

+	return result, count

+end

+

+--loads the nodes represented by string `value` at position `originpos`, returning the number of nodes deserialized

+worldedit.deserialize = function(originpos, value)

+	local pos = {x=0, y=0, z=0}

+	local node = {name="", param1=0, param2=0}

+	local count = 0

+	local env = minetest.env

+	for x, y, z, name, param1, param2 in value:gmatch("([+-]?%d+)%s+([+-]?%d+)%s+([+-]?%d+)%s+([^%s]+)%s+(%d+)%s+(%d+)[^\r\n]*[\r\n]*") do

+		pos.x = originpos.x + tonumber(x)

+		pos.y = originpos.y + tonumber(y)

+		pos.z = originpos.z + tonumber(z)

+		node.name = name

+		node.param1 = param1

+		node.param2 = param2

+		env:add_node(pos, node)

+		count = count + 1

+	end

+	return count

+end

+

+--loads the nodes represented by string `value` at position `originpos`, returning the number of nodes deserialized

+--based on [table.save/table.load](http://lua-users.org/wiki/SaveTableToFile) by ChillCode, available under the MIT license (GPL compatible)

+worldedit.deserialize_old = function(originpos, value)

+	--obtain the node table

+	local count = 0

+	local get_tables = loadstring(value)

+	if get_tables == nil then --error loading value

+		return count

+	end

+	local tables = get_tables()

+

+	--transform the node table into an array of nodes

+	for i = 1, #tables do

+		for j, v in pairs(tables[i]) do

+			if type(v) == "table" then

+				tables[i][j] = tables[v[1]]

+			end

+		end

+	end

+

+	--load the node array

+	local env = minetest.env

+	for i, v in ipairs(tables[1]) do

+		local pos = v[1]

+		pos.x, pos.y, pos.z = originpos.x + pos.x, originpos.y + pos.y, originpos.z + pos.z

+		env:add_node(pos, v[2])

+		count = count + 1

+	end

+	return count

+end

+

+--saves the nodes and meta defined by positions `pos1` and `pos2` into a file, returning the number of nodes saved

+worldedit.metasave = function(pos1, pos2, file) --wip: simply work with strings instead of doing IO

+	local path = minetest.get_worldpath() .. "/schems"

+	local filename = path .. "/" .. file .. ".wem"

+	os.execute("mkdir \"" .. path .. "\"") --create directory if it does not already exist

+	local rows = {}

+	local pos1, pos2 = worldedit.sort_pos(pos1, pos2)

+	local pos = {x=pos1.x, y=0, z=0}

+	local count = 0

+	local result = {}

+	local env = minetest.env

+	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 = env:get_node(pos)

+				if node.name ~= "air" and node.name ~= "ignore" then

+					count = count + 1

+					local row = {

+						x = pos.x-pos1.x,

+						y = pos.y-pos1.y,

+						z = pos.z-pos1.z,

+						name = node.name,

+						param1 = node.param1,

+						param2 = node.param2,

+						meta = env:get_meta(pos):to_table(),

+					}

+					table.insert(rows, row)

+				end

+				pos.z = pos.z + 1

+			end

+			pos.y = pos.y + 1

+		end

+		pos.x = pos.x + 1

+	end

+	local err = table.save(rows,filename)

+	if err then return _,err end

+	return count

+end

+

+--loads the nodes and meta from `file` to position `pos1`, returning the number of nodes loaded

+worldedit.metaload = function(pos1, file) --wip: simply work with strings instead of doing IO

+	local filename = minetest.get_worldpath() .. "/schems/" .. file .. ".wem"

+	local rows, err = table.load(filename)

+	if err then return _,err end

+	local pos = {x=0, y=0, z=0}

+	local node = {name="", param1=0, param2=0}

+	local count = 0

+	local env = minetest.env

+	for i,row in pairs(rows) do

+		pos.x = pos1.x + tonumber(row.x)

+		pos.y = pos1.y + tonumber(row.y)

+		pos.z = pos1.z + tonumber(row.z)

+		node.name = row.name

+		node.param1 = row.param1

+		node.param2 = row.param2

+		env:add_node(pos, node)

+		env:get_meta(pos):from_table(row.meta)

+		count = count + 1

+	end

+	return count

+end
\ No newline at end of file