TrainCarts/Spawning

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Introduction

TrainCarts features several different ways to spawn trains. These are:

• Vanilla Minecarts - Players can spawn TrainCarts Minecarts. The page details how to have Vanilla Minecart behavior as well.
• Spawn Sign - Spawns trains onto the track above in response to Redstone or automatically on a period
• Train Spawn Chest - A portable item with which players can pick up trains and spawn them onto the track

Spawn Pattern

Both the train spawn chest and the spawn sign support a spawn pattern syntax. With this syntax a train can be composed of multiple different carts or saved trains, and then spawned as a whole.

The spawn pattern supports:

Mechanism	Pattern	Explanation
Vanilla Minecarts	m	Spawns a rideable Minecart
Saved Trains	MyTrain	Spawns the train saved as MyTrain
Repetition	mmm	Spawns three rideable Minecarts
Amount Prefix	3m3s	Spawns three rideable Minecarts and three Minecarts with Chest as a 6-cart train
Grouped Sequences	3[ms]	Spawns 3 pairs of a rideable Minecart and Minecart with Chest. Same as msmsms
Random	3[33%RedCart 33%GreenCart 33%BlueCart]	Spawns a 3-cart train with random color carts that were previous saved

Vanilla Minecarts

Default Vanilla Minecarts can be specified with the single-character names below:

Text	Minecart type
m	Regular Minecart
p	Powered Minecart
s	Storage Minecart
t	TNT Minecart
h	Hopper minecart
e	Minecart with Spawner

For example, this spawn sign spawns a 3-minecart train:

[train]

spawn

mmm

And this command gives the player a train spawn chest that spawns a 3-minecart train:

/train chest mmm

Saved Trains

Players can use /train save [name] to save the train they are editing as a saved train. This name can then be used in a spawn pattern.

• When matching a saved train name, the longest name that matches is selected. So if you have two trains saved as MyTrain and MyTrainLong, then putting MyTrainLong on a spawn sign will spawn that train.
• Saved train names can be listed with command: /savedtrain list
• Saved trains can be imported or edited with command: /savedtrain [name] [subcommand]
• Saved trains can also be included in a resource pack loaded on the server, like what the TrainCarts Demo Resource Pack.
• Note: Saved train names are not the same as named trains (/train rename). There is no relation between the two.

For example, this spawn sign spawns a train named MyTrain:

[train]

spawn

MyTrain

And this command gives the player a train spawn chest that spawns a train named MyTrain:

/train chest MyTrain

Saved Spawn Patterns

Instead of saving a train, a (long) train spawning pattern can be saved instead with /savedtrain [name] spawn [pattern].

For example:

/savedtrain MyTrain spawn 4[50%m 50%s] p

When spawning MyTrain this will spawn 4 random rideable Minecarts or Minecart with chest, followed by a single Minecart with Furnace. This is especially useful when patterns are too long to fit on spawn signs. These patterns can be used recursively.

Repetition

Multiple train names or Vanilla Minecart names can be put following each other, no space required. When matching the names, it matches the longest saved train name that matches the pattern.

Amount Prefix

Digits can be put in front of names to repeat that pattern a number of times. If you want to spawn MyTrain three times, you can put 3MyTrain

Grouped Sequences

Patterns can be grouped so that the amount prefix repeats the entire group, instead of only the one train or cart specified.

For example, if you want to spawn a locomotive followed by red-green-blue carriages repeated four times (12 carriages), you can put:

4[carr carg carb] loco

Random

Use the % weighted prefix to randomly have a pattern choose between different types of trains to spawn. This follows a syntax similar to the WorldEdit syntax.

For example, to spawn a locomotive followed by 12 carts of random red, green or blue carriages:

12[33%carr 33%carg 33%carb] loco

These prefixes can also be applied to grouped sequences to create variable-length trains. This will spawn a locomotive with randomly 0, 1 or 2 carriages:

[33%[] 33%carb 33%[carr carg]] loco

The percentage total is normalized, so in the above examples using 50% or 200% would have resulted in the same behavior.