Activator Rail

Activator rail is a type of rail that can "activate" certain minecarts.

Usage
Activator rails follow the same placement and powering rules as powered rails.

Powered activator rails do different things to the following minecarts running on top of them:
 * Regular minecarts will shake and eject their passenger, if any.
 * Minecarts with TNT will be set off.
 * Minecarts with hoppers will be disabled.
 * Minecarts with command blocks will run their command.

Inactive activator rails will enable minecarts with hoppers passing over them.

Data values
Every activator rail has an ID name of  and stores its orientation and activation status in its block data. An activator rail also has a block state which is expected to replace the functionality of block data in a future version.

Block data
An activator rail's block data stores its orientation: