mirror of
https://github.com/sbrl/Minetest-WorldEditAdditions.git
synced 2024-11-27 17:43:53 +01:00
84 lines
2.9 KiB
Lua
84 lines
2.9 KiB
Lua
local wea = worldeditadditions
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local Vector3 = wea.Vector3
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-- ██████ ██████ ███ ███ ███████
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-- ██ ██ ██ ██ ████ ████ ██
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-- ██ ██ ██ ██ ██ ████ ██ █████
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-- ██ ██ ██ ██ ██ ██ ██ ██
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-- ██████ ██████ ██ ██ ███████
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--- Creates a dome shape with the given node, optionally specifying the
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-- direction the point should point.
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-- @param pos Vector3 The central point to start drawing the dome from.
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-- @param radius number The radius of the dome to create.
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-- @param replace_node string The fully qualified name of the node to use to make the dome with.
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-- @param pointing_dir Vector3 Optional. The direction the dome should point. Defaults to (0, 1, 0). See also wea.parse.axis_name.
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-- @param hollow boolean Whether to make the dome hollow or not. Defaults to false.
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function worldeditadditions.dome(pos, radius, replace_node, pointing_dir, hollow)
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pos = Vector3.clone(pos)
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local pos1 = pos - radius
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local pos2 = pos + radius
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if not pointing_dir then pointing_dir = Vector3.new(0, 1, 0) end
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if hollow == nil then hollow = false end
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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, area = worldedit.manip_helpers.init(pos1, pos2)
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local data = manip:get_data()
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local node_id_replace = minetest.get_content_id(replace_node)
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local radius_sq = radius * radius
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local radius_inner_sq = (radius-1) * (radius-1)
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local centrepoint = Vector3.mean(pos1, pos2)
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local replaced = 0
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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 distance_sq = (Vector3.new(x, y, z) - centrepoint):length_squared()
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local is_in_range = distance_sq < radius_sq
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if hollow and distance_sq < radius_inner_sq then
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is_in_range = false
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end
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if is_in_range then
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-- It's inside the radius, but we're still not sure given this is a dome and not a sphere
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local should_include = false
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if x <= centrepoint.x and pointing_dir.x < 0 then
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should_include = true
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end
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if x >= centrepoint.x and pointing_dir.x > 0 then
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should_include = true
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end
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if y <= centrepoint.y and pointing_dir.y < 0 then
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should_include = true
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end
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if y >= centrepoint.y and pointing_dir.y > 0 then
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should_include = true
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end
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if z <= centrepoint.z and pointing_dir.z < 0 then
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should_include = true
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end
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if z >= centrepoint.z and pointing_dir.z > 0 then
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should_include = true
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end
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if should_include then
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data[area:index(x, y, z)] = node_id_replace
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replaced = replaced + 1
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end
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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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worldedit.manip_helpers.finish(manip, data)
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return true, replaced
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end
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