mirror of
https://github.com/joe7575/tubelib2.git
synced 2024-07-15 12:19:34 +02:00
56 lines
1.3 KiB
Lua
56 lines
1.3 KiB
Lua
--[[
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Tube Library 2
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==============
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Copyright (C) 2017-2018 Joachim Stolberg
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LGPLv2.1+
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See LICENSE.txt for more information
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convert.lua
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Optional module, only needed to convert legacy tubes into tubelib2 tubes.
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This is done by means of a callback function:
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dir1, dir2, num = func(pos, name, param2)
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]]--
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local Tube = tubelib2.Tube
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function Tube:on_convert_tube(convert_tube_clbk)
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self.convert_tube_clbk = convert_tube_clbk
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end
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function Tube:convert_to_tubelib2(pos1, dir1)
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local pos2, dir2, cnt = self:convert_tube_line(pos1, dir1)
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self:add_meta_data(pos1, pos2, dir1, dir2, cnt)
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end
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function Tube:convert_tube_line(pos, dir)
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local convert_next_tube = function(self, pos, dir)
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local npos, node = self:get_next_node(pos, dir)
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local dir1, dir2, num = self.convert_tube_clbk(npos, node.name, node.param2)
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if dir1 then
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self.clbk_after_place_tube(self:tube_data_to_table(npos, dir1, dir2 or tubelib2.Turn180Deg[dir1], num))
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if tubelib2.Turn180Deg[dir] == dir1 then
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return npos, dir2
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else
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return npos, dir1
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end
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end
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end
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local cnt = 0
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if not dir then return pos, cnt end
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while cnt <= self.max_tube_length do
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local new_pos, new_dir = convert_next_tube(self, pos, dir)
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if not new_dir then break end
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pos, dir = new_pos, new_dir
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cnt = cnt + 1
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end
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return pos, dir, cnt
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end
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