From 1c31bd7f0d78447ea35e195b59fc1b2577ebaf18 Mon Sep 17 00:00:00 2001 From: Anthony Zhang Date: Sat, 13 Oct 2012 21:45:50 -0400 Subject: Separate components into separate mods, add visualization API with hide(), suppress(), find(), and restore() for nondestructive node visualization. Corresponding chat commands are //hide, //suppress, //find, and //restore. Commands and functions documented. --- worldedit/visualization.lua | 164 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 164 insertions(+) create mode 100644 worldedit/visualization.lua (limited to 'worldedit/visualization.lua') diff --git a/worldedit/visualization.lua b/worldedit/visualization.lua new file mode 100644 index 0000000..f3d4a35 --- /dev/null +++ b/worldedit/visualization.lua @@ -0,0 +1,164 @@ +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 \ No newline at end of file -- cgit v1.2.3