Minecraft Data Packs / Other

[1.18.x - 1.12.x] Fully-automatic Minecart Railway Builder Tool (datapack)

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flashteens avatar flashteens
Level 61 : High Grandmaster Technomancer

UPDATE 2020-08-01: Updated the BulletCart datapack to v2.2. It is recommended to also update the "Railway Builder Tool" datapack in your map to help testing your railway lines easier!
See also on this post for more details.


For those who are adventure map makers for Vanilla Minecraft and need to build a railway system in your maps, here's an awesome tool for you to build and run it without any "mods".

The design of this tool is based on the subway system of my main Minecraft world, and you'll be able to build a similar minecart automatic contraptions using this tool! :)

This tool is currently applicable for Minecraft 1.18.x - 1.12.x versions. Please refer to the download links listed above.


  • Automatic minecart launcher command block, where a detector rail is automatically attached above whenever placing the command block. Please put this command block at the stopping position in each station. When a minecart triggers the detector rail, the cart will stops for a few seconds before it is automatically launched for departure.
  • Departure bells before a minecart leaves the station.
  • Automatic minecart removal. When a minecart departs from the launcher command block without any passengers, it will be automatically removed to avoid blocking on the halfway.
  • Minecart direction control, which corrects the direction of minecarts at your desired locations.
  • Minecart dispensers, which generate a minecart where a specific color tile is attached. There are 30 different color tiles available on your choice.
  • [​1.13+ only] Speedometer data pack, showing your current speed on the sidebar, in km/h.
  • [​1.13+ only] High-speed railway data pack. Please refer to this post for more details.

Future Plans

  • ✅ Minecraft 1.14+ and 1.13+ support.
  • ✅ Fixed the problems when running on a Spigot server.
  • Add support to platform gates and screen doors.
  • Customizable line names.
  • Customizable departure bells.
  • Instant effects that help overcoming the terrains when building railway lines, ex: night vision, tree remover, instant /fill commands.

How to install this tool

Please follow the links as listed above. Since this tool only consists of functions of commands in Vanilla Minecraft, it should be very simple. :)


Q1: Why did you classify this tool as a "mod" instead of a "project"?
A1: I classified this tool as a "mod" in this post for its functionality. By applying this tool in your map, the tool indeed modifies the behaviors of minecarts when stopping at the auto-launcher command block, which requires a function that consists of dozens of commands involving numerous NBT and tag command (1.13+) / scoreboard tag (1.12.x) operations.
* For 1.13+, this tool is designed as 3 independent data packs containing the functions and the tags.

Q2: Could I use this tool in a modded version of Minecraft (ex. Forge, or a plugin server)?
A2: Currently this tool is still under testing. For any related issues whether it works or not, feel free to comment below.

Q3: Is there any source code for this project?
A3: Yes. See on my GitHub page (for 1.12.x and 1.13+).

Copyright Issues

This work is licensed under a Creative Commons BY 4.0 License. Feel free to use this tool in your Minecraft world as long as:
  • You credit me as the provider of this tool.

[1.18.x - 1.12.x] Fully-automatic Minecart Railway Builder Tool (datapack) Minecraft Data Pack
CompatibilityMinecraft 1.13
toMinecraft 1.18

12 Update Logs

Snapshot 0.13.42: Technical update to support BulletCart datapack v2.2 : by flashteens 08/01/2020 8:12:21 amAug 1st, 2020

Technical update is added to support the BulletCart datapack to v2.2. To help testing your railway lines easier, it is recommended to update both datapacks in your map if available.

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11/14/2020 10:03 pm
Level 1 : New Miner
twmccreeper avatar
Which Function?
08/12/2020 4:46 pm
Level 1 : New Miner
HeStupid avatar
Hey! the signs with "click: discense a cart" there is no word "cart" in all of the signs. Version 1.16.1
03/21/2021 10:37 am
Level 1 : New Crafter
RyanVonn avatar
turn on force unicode font
08/06/2020 2:07 pm
Level 1 : New Crafter
FrozenHeart471 avatar
Thanks for bringing this datapack into 1.16! I see that my additions for the carts I submitted to you didn't make the final cut. That's okay, at least it was some kind of catalyst for this update. Again, thank you!
04/03/2020 4:53 pm
Level 7 : Apprentice Fisherman
Fishin-Chips avatar
Please do 1.15 and 1.16 when it comes out.
06/30/2020 12:57 am
Level 1 : New Crafter
FrozenHeart471 avatar
I've had this datapack back in 1.15, even though it was technically for 1.14, and it surprisingly worked well despite the differences in versions.
02/15/2020 9:57 am
Level 1 : New Crafter
FrozenHeart471 avatar
Hey-Oh! I should probably bring it to your attention that some of the mine-carts in this datapack suddenly got a different appearance than what was originally intended.

I have noticed that the carts in blue and yellow have changed their appearance, specifically. Instead of a blue or yellow concrete block inside of the cart, there seems to be a blue or yellow glass block in their place, respectively. I think this happened when I made the shift from 1.14 to 1.15 (I'm on 1.15.2 now).

Was this design change intentional, or was it something that just happened unexpectedly?
01/10/2020 2:58 pm
Level 32 : Artisan Unicorn
Tyiarrah avatar
01/10/2020 12:26 am
Level 15 : Journeyman Engineer
Tokusan1 avatar
Great post
12/25/2019 9:48 pm
Level 1 : New Crafter
Arbirchy avatar
Hey guys!

I tested this in 1.15 earlier- This datapack (the 1.14 version) does work properly with Minecraft.
Planet Minecraft


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