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https://github.com/sbrl/Minetest-WorldEditAdditions.git
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64 lines
2.1 KiB
Lua
64 lines
2.1 KiB
Lua
--- Overlap command. Places a specified node on top of each column.
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-- @module worldeditadditions.overlay
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function worldeditadditions.overlay(pos1, pos2, node_weights)
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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, area = worldedit.manip_helpers.init(pos1, pos2)
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local data = manip:get_data()
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local node_id_air = minetest.get_content_id("air")
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local node_id_ignore = minetest.get_content_id("ignore")
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local node_ids, node_ids_count = worldeditadditions.make_weighted(node_weights)
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-- minetest.log("action", "pos1: " .. worldeditadditions.vector.tostring(pos1))
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-- minetest.log("action", "pos2: " .. worldeditadditions.vector.tostring(pos2))
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-- z y x is the preferred loop order, but that isn't really possible here
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local changes = { updated = 0, skipped_columns = 0 }
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for z = pos2.z, pos1.z, -1 do
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for x = pos2.x, pos1.x, -1 do
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local found_air = false
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local placed_node = false
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for y = pos2.y, pos1.y, -1 do
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local i = area:index(x, y, z)
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local is_air = data[i] == node_id_air
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if not is_air then -- wielded_light nodes are airlike too
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local this_node_name = minetest.get_name_from_content_id(data[i])
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is_air = is_air or worldeditadditions.string_starts(this_node_name, "wielded_light")
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end
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local is_ignore = data[i] == node_id_ignore
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if not is_air and not is_ignore then
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if found_air then
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local new_id = node_ids[math.random(node_ids_count)]
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-- We've found an air block previously, so it must be above us
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-- Replace the node above us with the target block
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data[area:index(x, y + 1, z)] = new_id
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changes.updated = changes.updated + 1
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placed_node = true
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break -- Move on to the next column
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end
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elseif not is_ignore then
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found_air = true
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end
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end
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if not placed_node then
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changes.skipped_columns = changes.skipped_columns + 1
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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 changes
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end
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