Minecraft now has Kobras in the very first version pistons got added, you can watch this video for more information - How to Generate a Spawner in MCJE Beta 1.7.
Kimo made a mod that allowes to constantly power detector rails (as if they always have minecarts on them), this greatly speeds up the development of Kobras, since we don't need to worry about minecarts. This MCEdit filter is made so you can convert builds made with such mod into Kobras that work in vanilla single player.
It does two things:
- places a minecart above each detector rail;
- changes data value of all rails to 0, so there are no sloped rails.
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Download 32 bit MCEdit and open mcedit.exe
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Quick Load -> Select needed world -> Select an area -> Press Filter option in the bottom menu
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In Filter window press Filter: - it's a shortcut to open filter folder
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Download beta_kobra_fixer.py from this repository and drag & drop it into opened filter folder
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Now reload filters by selectind different tool in tool box and going back to Filter, now you can find Beta Kobra Fixer filter!
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Now select Filter tool, find "Beta Kobra Fixer" tool and click "Filter". You can also toggle an option to change all detector rails to default data value (this is needed to fix sloped rails on upwards extensions).
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Save the world by pressing Ctrl + S.
This program is licensed under the MIT License. Please read the License file to know about the usage terms and conditions.