mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-12-04 21:13:50 +01:00
55 lines
2.1 KiB
Lua
55 lines
2.1 KiB
Lua
local wea_c = worldeditadditions_core
|
|
local Vector3 = wea_c.Vector3
|
|
|
|
|
|
-- ██ ██ ███ ██ ███████
|
|
-- ██ ██ ████ ██ ██
|
|
-- ██ ██ ██ ██ ██ █████
|
|
-- ██ ██ ██ ██ ██ ██
|
|
-- ███████ ██ ██ ████ ███████
|
|
|
|
--- Counts the nodes in a given area.
|
|
-- @param pos1 Vector3 The position to start drawing the line from.
|
|
-- @param pos2 Vector3 The position to draw the line to.
|
|
-- @param thickness number The thickness of the line to draw.
|
|
-- @param node_name string The (normalised) name of the node to draw the line with.
|
|
-- @returns bool,{replaced=number} 1. A bool indicating whether the operation was successful or not.
|
|
-- 2. A table containing statistics. At present the only key in this table is `replaced`, which indicates the number of nodes replaced when drawing the line.
|
|
function worldeditadditions.line(pos1, pos2, thickness, node_name)
|
|
local pos1_sorted, pos2_sorted = Vector3.sort(pos1, pos2)
|
|
-- pos2 will always have the highest co-ordinates now
|
|
|
|
pos1 = Vector3.clone(pos1)
|
|
pos2 = Vector3.clone(pos2)
|
|
|
|
local node_id_replace = minetest.get_content_id(node_name)
|
|
|
|
-- Fetch the nodes in the specified area
|
|
local manip, area = worldedit.manip_helpers.init(pos1, pos2)
|
|
local data = manip:get_data()
|
|
|
|
-- z y x is the preferred loop order (because CPU cache I'd guess, since then we're iterating linearly through the data array)
|
|
local counts = { replaced = 0 }
|
|
for z = pos2_sorted.z, pos1_sorted.z, -1 do
|
|
for x = pos2_sorted.x, pos1_sorted.x, -1 do
|
|
for y = pos2_sorted.y, pos1_sorted.y, -1 do
|
|
local here = Vector3.new(x, y, z)
|
|
local D = (pos2 - pos1):normalise()
|
|
local d = Vector3.dot(here - pos1, D)
|
|
local closest_on_line = pos1 + (D * d)
|
|
local distance = (here - closest_on_line):length()
|
|
|
|
if distance < thickness then
|
|
data[area:index(x, y, z)] = node_id_replace
|
|
counts.replaced = counts.replaced + 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Save the modified nodes back to disk & return
|
|
worldedit.manip_helpers.finish(manip, data)
|
|
|
|
return true, counts
|
|
end
|