ActivatorRail
Extends StraightOnlyRail
Implements PoweredByRedstone
Acts on the minecarts passing over it (see \pocketmine\entity\vehicle\AbstractMinecart): when powered, it ejects the riders of minecarts, primes TNT minecarts, disables hopper minecarts and runs the command of command block minecarts; unpowered, it enables hopper minecarts again.