mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-25 16:43:05 +00:00
78 lines
No EOL
3.5 KiB
Lua
78 lines
No EOL
3.5 KiB
Lua
local wea_c = worldeditadditions_core
|
|
local Vector3 = wea_c.Vector3
|
|
|
|
-- ██████ ███████ ██ ██ ██████ ██ ██ ██ ███████
|
|
-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
-- ██████ █████ ██ ██ ██ ██ ██ ██ ██ █████
|
|
-- ██ ██ ██ ██ ██ ██ ██ ██ ██ ██ ██
|
|
-- ██ ██ ███████ ████ ██████ ███████ ████ ███████
|
|
|
|
--- Make <times> copies of the region defined by pos1-pos2 at equal angles around a circle.
|
|
-- The defined region works best if it's a thin slice that's 1 or 2 blocks thick.
|
|
-- For example, if one provided a times value of 3, copies would be rotated 0, 120, and 240 degrees.
|
|
-- TODO: implement support to rotate around arbitrary axes.
|
|
-- @param pos1 Vector3 The first position defining the source region.
|
|
-- @param pos2 Vector3 The second position defining the source region.
|
|
-- @param origin Vector3 The pivot point to rotate around.
|
|
-- @param times number The number of equally-spaces copies to make.
|
|
function worldeditadditions.revolve(pos1, pos2, origin, times)
|
|
local rotation_radians = wea_c.table.filter(
|
|
wea_c.range(0, 1, 1 / times),
|
|
function (val) return val ~= 0 and val ~= 1 end
|
|
)
|
|
|
|
local pos1_source, pos2_source = Vector3.sort(pos1, pos2)
|
|
|
|
-- HACK: with some maths this could be much more efficient.
|
|
local pos1_target, pos2_target = wea_c.table.unpack(wea_c.table.reduce({
|
|
Vector3.rotate3d(origin, pos1_source, Vector3.new(0, math.pi / 2, 0)),
|
|
Vector3.rotate3d(origin, pos2_source, Vector3.new(0, math.pi / 2, 0)),
|
|
Vector3.rotate3d(origin, pos1_source, Vector3.new(0, math.pi, 0)),
|
|
Vector3.rotate3d(origin, pos2_source, Vector3.new(0, math.pi, 0)),
|
|
Vector3.rotate3d(origin, pos1_source, Vector3.new(0, -math.pi / 2, 0)),
|
|
Vector3.rotate3d(origin, pos2_source, Vector3.new(0, -math.pi / 2, 0)),
|
|
}, function(acc, next)
|
|
return { next:expand_region(acc[1], acc[2]) }
|
|
end, { pos1_source, pos2_source }))
|
|
|
|
-- Fetch the nodes in the specified area
|
|
local manip_source, area_source = worldedit.manip_helpers.init(pos1_source, pos2_source)
|
|
local data_source = manip_source:get_data()
|
|
|
|
local manip_target, area_target = worldedit.manip_helpers.init(pos1_target, pos2_target)
|
|
local data_target = manip_target:get_data()
|
|
|
|
local changed = 0
|
|
for z = pos2_source.z, pos1_source.z, -1 do
|
|
for y = pos2_source.y, pos1_source.y, -1 do
|
|
for x = pos2_source.x, pos1_source.x, -1 do
|
|
local pos_source = Vector3.new(x, y, z)
|
|
local i_source = area_source:index(x, y, z)
|
|
|
|
-- Lua really sucks sometimes... a continue statement would be v useful here
|
|
if not wea_c.is_airlike(data_source[i_source]) then
|
|
for index, rotation in ipairs(rotation_radians) do
|
|
local pos_target = Vector3.rotate3d(
|
|
origin,
|
|
pos_source,
|
|
-- rotate on Z axis only, convert 0..1 → radians
|
|
-- TEST on Y axis, 'cause I'm confused
|
|
Vector3.new(0, rotation * math.pi * 2, 0)
|
|
):round()
|
|
|
|
local i_target = area_target:index(pos_target.x, pos_target.y, pos_target.z)
|
|
|
|
-- TODO: Rotate notes as appropriate
|
|
data_target[i_target] = data_source[i_source]
|
|
changed = changed + 1
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
|
|
-- Save the modified nodes back to disk & return
|
|
worldedit.manip_helpers.finish(manip_target, data_target)
|
|
|
|
return true, changed
|
|
end |