85 lines
3.2 KiB
Markdown
85 lines
3.2 KiB
Markdown
# Tube Library 2 [tubelib2]
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A library for mods which need connecting tubes / pipes / cables or similar.
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This mod is not useful for its own. It does not even have any nodes.
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It only comes with a few test nodes to play around with the tubing algorithm.
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Browse on: 
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Download: 
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## Description
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Tubelib2 distinguished two kinds of nodes:
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- primary nodes are tube like nodes (pipes, cables, ...)
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- secondary nodes are all kind of nodes, which can be connected by means of primary nodes
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Tubelib2 specific 6D directions (1 = North, 2 = East, 3 = South, 4 = West, 5 = Down, 6 = Up)
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All 6D dirs are the view from the node to the outer side
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Tubes are based on two node types, "angled" and "straight" tubes.
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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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All other nodes are build by means of axis/rotation variants based on param2
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(paramtype2 == "facedir").
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The 3 free MSB bits of param2 of tube nodes are used to store the number of connections (0..2).
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The data of the peer head tube are stored in memory 'self.connCache'
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Tubelib2 provides an update mechanism for connected "secondary" nodes. A callback function
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func(node, pos, out_dir, peer_pos, peer_in_dir) will be called for every change on the connected tubes.
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## Dependencies
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default
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optional: intllib
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# License
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Copyright (C) 2017-2020 Joachim Stolberg
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Code: Licensed under the GNU LGPL version 2.1 or later.
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See LICENSE.txt and http://www.gnu.org/licenses/lgpl-2.1.txt
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Textures: CC0
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## History
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- 2018-10-20 v0.1 * Tested against hyperloop elevator.
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- 2018-10-27 v0.2 * Tested against and enhanced for the hyperloop mod.
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- 2018-10-27 v0.3 * Further improvements.
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- 2018-11-09 v0.4 * on_update function for secondary nodes introduced
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- 2018-12-16 v0.5 * meta data removed, memory cache added instead of
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- 2018-12-20 v0.6 * intllib support added, max tube length bugfix
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- 2019-01-06 v0.7 * API function replace_tube_line added, bug fixed
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- 2019-01-11 v0.8 * dir_to_facedir bugfix
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- 2019-02-09 v0.9 * storage.lua added, code partly restructured
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- 2019-02-17 v1.0 * released
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- 2019-03-02 v1.1 * API function 'switch_tube_line' added, secondary node placement bugfix
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- 2019-04-18 v1.2 * 'force_to_use_tubes' added
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- 2019-05-01 v1.3 * API function 'compatible_node' added
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- 2019-05-09 v1.4 * Attribute 'tube_type' added
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- 2019-07-12 v1.5 * internal handling of secondary nodes changed
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- 2019-10-25 v1.6 * callback 'tubelib2_on_update2' added
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- 2020-01-03 v1.7 * max_tube_length bugfix
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- 2020-02-02 v1.8 * 'special nodes' as alternative to 'secondary nodes' introduced
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- 2020-05-31 v1.9 * Generator function 'get_tube_line' added, storage improvements
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