mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
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0b379c48cb
For #56, but the docs aren't written yet so we'll wait on closing it until I've written them.
58 lines
2.6 KiB
Lua
58 lines
2.6 KiB
Lua
-- █████ ██ ██████
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-- ██ ██ ██ ██ ██
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-- ███████ ██ ██████
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-- ██ ██ ██ ██ ██
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-- ██ ██ ██ ██ ██
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--
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-- █████ ██████ ██████ ██ ██ ██
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-- ██ ██ ██ ██ ██ ██ ██ ██ ██
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-- ███████ ██████ ██████ ██ ████
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-- ██ ██ ██ ██ ██ ██
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-- ██ ██ ██ ██ ███████ ██
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--- Similar to cubeapply, except that it takes 2 positions and only keeps an ellipsoid-shaped area defined by the boundaries of the defined region.
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-- Takes a backup copy of the defined region, runs the given function, and then
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-- restores the bits around the edge that aren't inside the largest ellipsoid that will fit inside the defined region.
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-- @param {Position} pos1 The 1st position defining the region boundary
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-- @param {Position} pos2 The 2nd positioon defining the region boundary
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-- @param {Function} func The function to call that performs the action in question. It is expected that the given function will accept no arguments.
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function worldeditadditions.airapply(pos1, pos2, func)
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local time_taken_all = worldeditadditions.get_ms_time()
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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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-- Fetch the nodes in the specified area
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local manip_before, area_before = worldedit.manip_helpers.init(pos1, pos2)
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local data_before = manip_before:get_data()
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local time_taken_fn = worldeditadditions.get_ms_time()
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func()
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time_taken_fn = worldeditadditions.get_ms_time() - time_taken_fn
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local manip_after, area_after = worldedit.manip_helpers.init(pos1, pos2)
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local data_after = manip_after:get_data()
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for z = pos2.z, pos1.z, -1 do
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for y = pos2.y, pos1.y, -1 do
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for x = pos2.x, pos1.x, -1 do
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local i_before = area_before:index(x, y, z)
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local i_after = area_after:index(x, y, z)
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local old_is_airlike = worldeditadditions.is_airlike(data_before[i_before])
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-- Roll everything that replaces nodes that aren't airlike
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if not old_is_airlike then
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data_after[i_after] = data_before[i_before]
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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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-- No need to save - this function doesn't actually change anything
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worldedit.manip_helpers.finish(manip_after, data_after)
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time_taken_all = worldeditadditions.get_ms_time() - time_taken_all
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return true, { all = time_taken_all, fn = time_taken_fn }
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end
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