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Add //bonemeal command
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6 changed files with 178 additions and 11 deletions
41
README.md
41
README.md
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@ -17,8 +17,8 @@ If you can dream of it, it probably belongs here!
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- [`//maze <replace_node> [<path_length> [<path_width> [<seed>]]]`](#maze-replace_node-seed)
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- [`//maze3d <replace_node> [<path_length> [<path_width> [<path_depth> [<seed>]]]]`](#maze3d-replace_node-seed)
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- [`//multi <command_a> <command_b> .....`](#multi-command_a-command_b-command_c-)
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- [`//yy`](#yy)
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- [`//nn`](#nn)
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- [`//y`](#y)
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- [`//n`](#n)
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### `//floodfill [<replace_node> [<radius>]]`
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Floods all connected nodes of the same type starting at _pos1_ with <replace_node> (which defaults to `water_source`), in a sphere with a radius of <radius> (which defaults to 50).
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@ -108,6 +108,27 @@ The optional `path_depth` parameter defaults to `1` and allows customisation of
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//maze3d stone 6 3 3 54321
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```
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### `//bonemeal [<strength> [<chance>]]`
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Requires the [`bonemeal`](https://content.minetest.net/packages/TenPlus1/bonemeal/) ([repo](https://notabug.org/TenPlus1/bonemeal/)) mod (otherwise _WorldEditAdditions_ will not register this command and outut a message to the server log).
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Bonemeals all eligible nodes in the current region. An eligible node is one that has an air node directly above it - note that just because a node is eligible doesn't mean to say that something will actually happen when the `bonemeal` mod bonemeals it.
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Optionally takes a strength value (that's passed to `bonemeal:on_use()`, the method in the `bonemeal` mod that is called to actually do the bonemealing). The strength value is a positive integer from 1 to 4 (i.e. 1, 2, 3, or 4) - the default is 1 (the lowest strength).
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I observe that a higher strength value gives a higher chance that something will actually grow. In the case of soil or sand nodes, I observe that it increases the area of effect of a single bonemeal action (thus at higher strengths generally you'll probably want a higher chance number - see below). See the [`bonemeal` mod README](https://notabug.org/TenPlus1/bonemeal) for more information.
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Also optionally takes a chance number. This is the chance that an eligible node will actually get bonemealed, and is a positive integer that defaults to 1. The chance number represents a 1-in-{number} chance to bonemeal any given eligible node, where {number} is the chance number. In other words, the higher the chance number the lower the chance that a node will be bonemealed.
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For example, a chance number of 2 would mean a 50% chance that any given eligible node will get bonemealed. A chance number of 16 would be a 6.25% chance, and a chance number of 25 would be 2%.
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```
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//bonemeal
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//bonemeal 3 25
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//bonemeal 4
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//bonemeal 1 10
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//bonemeal 2 15
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```
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### `//multi <command_a> <command_b> <command_c> .....`
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Executes multi chat commands in sequence. Intended for _WorldEdit_ commands, but does work with others too. Don't forget a space between commands!
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@ -117,18 +138,22 @@ Executes multi chat commands in sequence. Intended for _WorldEdit_ commands, but
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//multi /time 7:00 //1 //outset h 20 //outset v 5 //overlay dirt_with_grass //1 //2 //sphere 8 air //shift down 1 //floodfill //reset
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```
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### `//yy`
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Confirms the execution of a command if it could potentially affect a large number of nodes and take a while. Equivalent to _WorldEdit_'s `//y`, but because of security sandboxing issues it's not really possible to hook into WorldEdit's existing command.
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### `//y`
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Confirms the execution of a command if it could potentially affect a large number of nodes and take a while. This is a regular WorldEdit command.
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<!-- Equivalent to _WorldEdit_'s `//y`, but because of security sandboxing issues it's not really possible to hook into WorldEdit's existing command. -->
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```
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//yy
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//y
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```
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### `//nn`
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Prevents the execution of a command if it could potentially affect a large number of nodes and take a while. Equivalent to _WorldEdit_'s `//y`, but because of security sandboxing issues it's not really possible to hook into WorldEdit's existing command.
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### `//n`
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Prevents the execution of a command if it could potentially affect a large number of nodes and take a while. This is a regular WorldEdit command.
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<!-- Equivalent to _WorldEdit_'s `//y`, but because of security sandboxing issues it's not really possible to hook into WorldEdit's existing command. -->
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```
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//nn
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//n
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```
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## Troubleshooting
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61
worldeditadditions/bonemeal.lua
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61
worldeditadditions/bonemeal.lua
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@ -0,0 +1,61 @@
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--- Bonemeal command.
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-- Applies bonemeal to all notes
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-- @module worldeditadditions.overlay
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-- strength The strength to apply - see bonemeal:on_use
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-- chance Positive integer that represents the chance bonemealing will occur
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function worldeditadditions.bonemeal(pos1, pos2, strength, chance)
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pos1, pos2 = worldedit.sort_pos(pos1, pos2)
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-- pos2 will always have the highest co-ordinates now
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-- This command requires the bonemeal mod to be installed
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-- We check here too because other mods might call this function directly and bypass the chat command system
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if not minetest.get_modpath("bonemeal") then
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return false, "Bonemeal mod not loaded"
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end
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-- Fetch the nodes in the specified area
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local manip, area = worldedit.manip_helpers.init(pos1, pos2)
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local data = manip:get_data()
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local node_id_air = minetest.get_content_id("air")
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-- z y x is the preferred loop order (because CPU cache I'd guess), but that isn't really possible here
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local nodes_bonemealed = 0
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local candidates = 0
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for z = pos2.z, pos1.z, -1 do
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for x = pos2.x, pos1.x, -1 do
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local found_air = false
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for y = pos2.y, pos1.y, -1 do
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if data[area:index(x, y, z)] ~= node_id_air then
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if found_air then
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-- We've found an air block previously, so this node definitely has air above it
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if math.random(0, chance - 1) == 0 then
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bonemeal:on_use(
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{ x = x, y = y, z = z },
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strength,
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nil
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)
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nodes_bonemealed = nodes_bonemealed + 1
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end
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candidates = candidates + 1
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found_air = false
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end
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else
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found_air = true
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end
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end
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end
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end
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-- Save the modified nodes back to disk & return
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-- Note that we do NOT save it back to disk here, because we haven't actually changed anything
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-- We just grabbed the data via manip to allow for rapid node name lookups
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-- worldedit.manip_helpers.finish(manip, data)
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return true, nodes_bonemealed, candidates
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end
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@ -14,3 +14,5 @@ dofile(minetest.get_modpath("worldeditadditions") .. "/ellipsoid.lua")
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dofile(minetest.get_modpath("worldeditadditions") .. "/torus.lua")
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dofile(minetest.get_modpath("worldeditadditions") .. "/maze2d.lua")
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dofile(minetest.get_modpath("worldeditadditions") .. "/maze3d.lua")
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dofile(minetest.get_modpath("worldeditadditions") .. "/bonemeal.lua")
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61
worldeditadditions_commands/commands/bonemeal.lua
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61
worldeditadditions_commands/commands/bonemeal.lua
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@ -0,0 +1,61 @@
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local we_c = worldeditadditions_commands
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-- ██████ ██████ ███ ██ ███████ ███ ███ ███████ █████ ██
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-- ██ ██ ██ ██ ████ ██ ██ ████ ████ ██ ██ ██ ██
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-- ██████ ██ ██ ██ ██ ██ █████ ██ ████ ██ █████ ███████ ██
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ██████ ██████ ██ ████ ███████ ██ ██ ███████ ██ ██ ███████
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worldedit.register_command("bonemeal", {
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params = "[<strength> [<chance>]]",
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description = "Bonemeals everything that's bonemeal-able that has an air node directly above it. Optionally takes a strength value to use (default: 1, maximum: 4), and a chance to actually bonemeal an eligible node (positive integer; nodes have a 1-in-<chance> chance to be bonemealed; higher values mean a lower chance; default: 1 - 100% chance).",
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privs = { worldedit = true },
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require_pos = 2,
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parse = function(params_text)
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if not params_text or params_text == "" then
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params_text = "1"
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end
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local parts = we_c.split(params_text, "%s+", false)
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local strength = 1
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local chance = 1
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if #parts >= 1 then
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strength = tonumber(parts[1])
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if not strength then
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return false, "Invalid strength value (value must be an integer)"
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end
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end
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if #parts >= 2 then
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chance = tonumber(parts[2])
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if not chance then
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return false, "Invalid chance value (must be a positive integer)"
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end
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end
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if strength < 1 or strength > 4 then
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return false, "Error: strength value out of bounds (value must be an integer between 1 and 4 inclusive)"
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end
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-- We unconditionally math.floor here because when we tried to test for it directly it was unreliable
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return true, math.floor(strength), math.floor(chance)
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end,
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nodes_needed = function(name) -- strength, chance
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-- Since every node has to have an air block, in the best-case scenario
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-- edit only half the nodes in the selected area
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return worldedit.volume(worldedit.pos1[name], worldedit.pos2[name]) / 2
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end,
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func = function(name, strength, chance)
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local start_time = os.clock()
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local success, nodes_bonemealed, candidates = worldeditadditions.bonemeal(worldedit.pos1[name], worldedit.pos2[name], strength, chance)
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if not success then
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-- nodes_bonemealed is an error message here because success == false
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return success, nodes_bonemealed
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end
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local percentage = we_c.round((nodes_bonemealed / candidates)*100, 2)
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local time_taken = os.clock() - start_time
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minetest.log("action", name .. " used //bonemeal at "..worldeditadditions.vector.tostring(worldedit.pos1[name]).." - "..worldeditadditions.vector.tostring(worldedit.pos2[name])..", bonemealing " .. nodes_bonemealed.." nodes (out of "..candidates.." nodes) at strength "..strength.." in "..time_taken.."s")
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return true, nodes_bonemealed.." out of "..candidates.." (~"..percentage.."%) candidates bonemealed in "..time_taken.."s"
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end
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})
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@ -10,14 +10,25 @@ local we_c = worldeditadditions_commands
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we_c.modpath = minetest.get_modpath("worldeditadditions_commands")
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dofile(we_c.modpath.."/utils/strings.lua")
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dofile(we_c.modpath.."/utils/numbers.lua")
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dofile(we_c.modpath.."/multi.lua")
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we_c.safe_region, we_c.check_region, we_c.reset_pending
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= dofile(we_c.modpath.."/safe.lua")
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-- We no longer need our own implementation of safe_region thanks to @sfan5's
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-- suggestion in issue #5 - yay!
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-- we_c.safe_region, we_c.check_region, we_c.reset_pending
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-- = dofile(we_c.modpath.."/safe.lua")
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dofile(we_c.modpath.."/utils/strings.lua")
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dofile(we_c.modpath.."/commands/floodfill.lua")
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dofile(we_c.modpath.."/commands/overlay.lua")
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dofile(we_c.modpath.."/commands/ellipsoid.lua")
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dofile(we_c.modpath.."/commands/torus.lua")
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dofile(we_c.modpath.."/commands/maze.lua")
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-- Don't registry the //bonemeal command if the bonemeal mod isn't present
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if minetest.get_modpath("bonemeal") then
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dofile(we_c.modpath.."/commands/bonemeal.lua")
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else
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minetest.log("action", "[WorldEditAdditions] bonemeal mod not detected: //bonemeal command not registered")
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end
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7
worldeditadditions_commands/utils/numbers.lua
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7
worldeditadditions_commands/utils/numbers.lua
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@ -0,0 +1,7 @@
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local we_c = worldeditadditions_commands
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-- From http://lua-users.org/wiki/SimpleRound
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function we_c.round(num, numDecimalPlaces)
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local mult = 10^(numDecimalPlaces or 0)
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return math.floor(num * mult + 0.5) / mult
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end
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