onActivated

@Override
    public boolean onBlockActivated(World world, BlockPos pos, IBlockState state, EntityPlayer player, EnumHand hand, @Nullable ItemStack heldItem, EnumFacing side, float hitX, float hitY, float hitZ){
        if(!world.isRemote){
            TilePointer tile = (TilePointer) world.getTileEntity(pos);
            if(tile != null){
                int[] d = RotationHelper.rotateXZByDir(-2, 1, tile.direction.getIndex());
                BlockPos p = pos.add(d[0], 0, d[1]);
                if(world.getBlockState(p).getBlock() instanceof BlockTrackSWNE){
                    TileTrackSWNE track = (TileTrackSWNE) world.getTileEntity(p);
                    if(track != null){
                        track.activated = !track.activated;
                        world.notifyBlockUpdate(pos, state, world.getBlockState(p), 3);
                        return true;
                    }
                }
            }
        }
        return true;
    }