TC Bot: Updating to match new version of source page

2025-10-12T09:43:19Z

Updating to match new version of source page

← Older revision		Revision as of 09:43, 12 October 2025
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	<languages/>		<languages/>
	~~[[Special:MyLanguage/TrainCarts/Signs\|« Go back]]~~


	== Introduction ==		== Introduction ==

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	=== Second line ===		=== Second line ===

	''launch'' or ''launcher'', followed up by the launch configuration. Launching can be done over a set distance, a set time, or at a constant acceleration. The launch function can be configured as [~~https~~:~~//en.wikipedia.org/wiki/Linear_function~~ linear] or [~~https~~:~~//en.wikipedia.org/wiki/B%C3%A9zier_curve~~ bezier]. A bezier curve will accelerate slower towards the beginning and end of the launch.		''launch'' or ''launcher'', followed up by the launch configuration. Launching can be done over a set distance, a set time, or at a constant acceleration. The launch function can be configured as [[wikipedia:Linear function\|linear]] or [[wikipedia:Bezier curve\|bezier]]. A bezier curve will accelerate slower towards the beginning and end of the launch.

	{\| class="wikitable"		{\| class="wikitable"
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	\| By appending a ''b'' at the end of the expression, the launch follows a bezier curve.		\| By appending a ''b'' at the end of the expression, the launch follows a bezier curve.
	\|}		\|}


	=== Third line ===		=== Third line ===
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	When only a value is specified, the unit is blocks/tick. For all other supported units, see [[Special:MyLanguage/TrainCarts/Velocity\|TrainCarts/Velocity]]		When only a value is specified, the unit is blocks/tick. For all other supported units, see [[Special:MyLanguage/TrainCarts/Velocity\|TrainCarts/Velocity]]

			==== Speed limit ====
			Normally trains will never speed up beyond what the speed limit property is set to. To overcome this, you will need to set a new speed limit, but setting the speed limit property may result in an instant speed-up. To fix this, it is possible to specify two numbers on the launcher sign to update both. It will smoothly launch to a new speed limit speed, and set the remainder as 'energy' that will slowly go down.

			==== Speed limit syntax ====
			Set a new speed limit of 2.0 and launch the train to this speed over a distance of 20 blocks. Once reached, give the train 10 'energy'.
			{{sign\|[train]\|launch 20\|2.0 10.0\|}}

	=== Fourth line ===		=== Fourth line ===

	Optionally you can specify the [[Special:MyLanguage/TrainCarts/Signs/Direction\|direction]] to launch here. The default parameter, if blank, is "continue" – it will launch the train in the same direction from which it came.		Optionally you can specify the [[Special:MyLanguage/TrainCarts/Signs/Direction\|direction]] to launch here. The default parameter, if blank, is "continue" – it will launch the train in the same direction from which it came.

TC Bot: Updating to match new version of source page

2021-02-08T17:41:25Z

Updating to match new version of source page

New page

<languages/>
[[Special:MyLanguage/TrainCarts/Signs|« Go back]]

== Introduction ==

The launcher sign, similar to the [[Special:MyLanguage/TrainCarts/Signs/Station|station]] sign, can launch trains and make them reach a certain speed. The distance over which the train slows down/speeds up and the direction to launch can all be specified. Launching at a speed of 0 will slowly put the train to a complete halt, similar to how stations stop trains. Note that the speed is not locked after launching is completed: you can still push the train around or stop it entirely.

== Syntax ==

{{sign|[train]|launch 10|0.4|continue}}

=== First line ===

There is no difference between using ''[cart]'' or ''[train]''. [[Special:MyLanguage/TrainCarts/Signs#Remote Control|Remote control]] can also be used in combination with this sign.

=== Second line ===

''launch'' or ''launcher'', followed up by the launch configuration. Launching can be done over a set distance, a set time, or at a constant acceleration. The launch function can be configured as [https://en.wikipedia.org/wiki/Linear_function linear] or [https://en.wikipedia.org/wiki/B%C3%A9zier_curve bezier]. A bezier curve will accelerate slower towards the beginning and end of the launch.

{| class="wikitable"
|-
! Syntax
! Meaning
|-
| launch
| Automatically computes a suitable distance to launch at, by looking for the first bend in the rails up ahead.
The maximum distance calculated this way is 100 blocks.
|-
| launch 20.0
| Launches the train to the target speed over 20 blocks (meters)
|-
| launch 20.0s
| Launches the train to the target speed in 20 seconds
|-
| launch 1m
| Launches the train to the target speed in 1 minute
|-
| launch 500ms
| Launches the train to the target speed in 500 milliseconds
|-
| launch 100t
| Launches the train to the target speed in 100 ticks (5 seconds)
|-
| launch 2.2G
| Launches the train to the target speed at a constant acceleration based on a G-force of 2.2 (0.2406m/t2)
|-
| launch 10km/h/s
| Launches the train to the target speed at a constant acceleration. See the [[Special:MyLanguage/TrainCarts/Acceleration|TrainCarts/Acceleration]] page for more information.
Must have a slash somewhere to be considered an acceleration expression.
|-
| launch 20l launch 20sl launch 10km/h/sl
| By appending a ''l'' at the end of the expression, the launch follows a linear curve.
|-
| launch 20b launch 20sb launch 10km/h/sb
| By appending a ''b'' at the end of the expression, the launch follows a bezier curve.
|}

=== Third line ===

The speed to launch at. If left empty, it will launch at the speed specified in the configuration (''launchForce''). To put the train to a complete halt, use 0.

Absolute speeds use a positive or zero number with no sign; to launch the train to a speed of 1.25 blocks per tick (25 blocks per second, or 90 km/h), use "1.25". Relative speeds require a sign even when positive; to launch the train to a speed 0.5 higher than it was before, write "+0.5"; to decrease the speed by 0.5, write "-0.5".

When only a value is specified, the unit is blocks/tick. For all other supported units, see [[Special:MyLanguage/TrainCarts/Velocity|TrainCarts/Velocity]]

=== Fourth line ===

Optionally you can specify the [[Special:MyLanguage/TrainCarts/Signs/Direction|direction]] to launch here. The default parameter, if blank, is "continue" – it will launch the train in the same direction from which it came.

TrainCarts/Signs/Launcher/en - Revision history

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