Save To File 
To use this event use the following import:
groovy
import net.minecraftforge.event.entity.player.PlayerEvent.SaveToFileSub-Classes 
This event extends the following events and can use all their methods and fields: 
PlayerEvent, LivingEvent, EntityEvent
Methods 
groovy
java.io.File getPlayerDirectory()groovy
java.lang.String getPlayerUUID()groovy
java.io.File getPlayerFile(java.lang.String arg0)