Entity Interact Specific 
To use this event use the following import:
groovy
import net.minecraftforge.event.entity.player.PlayerInteractEvent.EntityInteractSpecificSub-Classes 
This event extends the following events and can use all their methods and fields: 
PlayerInteractEvent, PlayerEvent, LivingEvent, EntityEvent
Methods 
groovy
net.minecraft.entity.Entity getTarget()groovy
net.minecraft.util.math.Vec3d getLocalPos()