worldedit = worldedit or {} --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 minetest.register_node("worldedit:placeholder", { drawtype = "airlike", paramtype = "light", sunlight_propagates = true, diggable = false, groups = {not_in_creative_inventory=1}, }) --hides all nodes in a region defined by positions `pos1` and `pos2` by non-destructively replacing them with invisible nodes, returning the number of nodes hidden worldedit.hide = function(pos1, pos2) local pos1, pos2 = worldedit.sort_pos(pos1, pos2) local env = minetest.env local pos = {x=pos1.x, y=0, z=0} local placeholder = {name="worldedit:placeholder", param1=0, param2=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) placeholder.param1, placeholder.param2 = node.param1, node.param2 --copy node's param1 and param2 local data = env:get_meta(pos):to_table() --obtain metadata of original node env:add_node(pos, placeholder) --add placeholder node local meta = env:get_meta(pos) --obtain placeholder meta meta:from_table(data) --set placeholder metadata to the original node's metadata meta:set_string("worldedit_placeholder", node.name) --add the node's name pos.z = pos.z + 1 end pos.y = pos.y + 1 end pos.x = pos.x + 1 end return worldedit.volume(pos1, pos2) end --suppresses all instances of `nodename` in a region defined by positions `pos1` and `pos2` by non-destructively replacing them with invisible nodes, returning the number of nodes suppressed worldedit.suppress = function(pos1, pos2, nodename) local pos1, pos2 = worldedit.sort_pos(pos1, pos2) local env = minetest.env if minetest.registered_nodes[nodename] == nil then nodename = "default:" .. nodename end local pos = {x=pos1.x, y=0, z=0} local placeholder = {name="worldedit:placeholder", param1=0, param2=0} 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 local node = env:get_node(pos) if node.name == nodename then placeholder.param1, placeholder.param2 = node.param1, node.param2 --copy node's param1 and param2 local data = env:get_meta(pos):to_table() --obtain metadata of original node env:add_node(pos, placeholder) --add placeholder node local meta = env:get_meta(pos) --obtain placeholder meta meta:from_table(data) --set placeholder metadata to the original node's metadata meta:set_string("worldedit_placeholder", nodename) --add the node's name 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 --finds all instances of `nodename` in a region defined by positions `pos1` and `pos2` by non-destructively hiding all other nodes, returning the number of nodes found worldedit.find = function(pos1, pos2, nodename) local pos1, pos2 = worldedit.sort_pos(pos1, pos2) local env = minetest.env if minetest.registered_nodes[nodename] == nil then nodename = "default:" .. nodename end local pos = {x=pos1.x, y=0, z=0} local placeholder = {name="worldedit:placeholder", param1=0, param2=0} 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 local node = env:get_node(pos) if node.name == nodename then --node found count = count + 1 else --hide other nodes placeholder.param1, placeholder.param2 = node.param1, node.param2 --copy node's param1 and param2 local data = env:get_meta(pos):to_table() --obtain metadata of original node env:add_node(pos, placeholder) --add placeholder node local meta = env:get_meta(pos) --obtain placeholder meta meta:from_table(data) --set placeholder metadata to the original node's metadata meta:set_string("worldedit_placeholder", node.name) --add the node's name end pos.z = pos.z + 1 end pos.y = pos.y + 1 end pos.x = pos.x + 1 end return count end --restores all nodes hidden with WorldEdit functions in a region defined by positions `pos1` and `pos2`, returning the number of nodes restored worldedit.restore = function(pos1, pos2) local pos1, pos2 = worldedit.sort_pos(pos1, pos2) local env = minetest.env local pos = {x=pos1.x, y=0, z=0} local node = {name="", param1=0, param2=0} 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 local currentnode = env:get_node(pos) if currentnode.name == "worldedit:placeholder" then node.param1, node.param2 = currentnode.param1, currentnode.param2 --copy node's param1 and param2 local data = env:get_meta(pos):to_table() --obtain node metadata node.name = data.fields.worldedit_placeholder --set node name data.fields.worldedit_placeholder = nil --delete old nodename env:add_node(pos, node) --add original node env:get_meta(pos):from_table(data) --set original node metadata 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