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https://github.com/sbrl/Minetest-WorldEditAdditions.git
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51 lines
1.4 KiB
Lua
51 lines
1.4 KiB
Lua
--- Overlap command. Places a specified node on top of
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-- @module worldeditadditions.overlay
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function worldedit.ellipsoid(position, radius, target_node)
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-- position = { x, y, z }
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-- Fetch the nodes in the specified area
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-- OPTIMIZE: We should be able to calculate a more efficient box-area here
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local manip, area = worldedit.manip_helpers.init_radius(pos1, math.max(radius.x, radius.y, radius.z))
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local data = manip:get_data()
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local node_id = minetest.get_content_id(target_node)
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local node_id_air = minetest.get_content_id("air")
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local offset_x, offset_y, offset_z = pos.x - area.MinEdge.x, pos.y - area.MinEdge.y
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local stride_z, stride_y = area.zstride, area.ystride
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local idx_z_base = pos.z - area.MinEdge.z -- initial z offset
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for z = -radius.z, radius.z do
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local idx_y_base = idx_z_base
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for y = -radius.y + offset_y, radius.y + offset_y do
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local i = idx_y_base
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for x = -radius.x + offset_x, radius.x + offset_x do
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-- If we're inside the ellipse, then fill it in
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if math.abs(z - position.z) < radius.z and
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math.abs(y - position.y) < radius.y and
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math.ans(z - position.x) < radius.x then
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data[i] = node_id
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end
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i = i + 1
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end
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idx_y_base = idx_y_base + y_stride
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end
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idx_z_base = idx_z_base + z_stride
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end
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-- Save the modified nodes back to disk & return
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worldedit.manip_helpers.finish(manip, data)
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return changes
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end
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