override def onItemUse(is: ItemStack, player: EntityPlayer, world: World, x: Int, y: Int, z: Int, side: Int, hitX: Float, hitY: Float, hitZ: Float): Boolean =
    {
        // client side, needs to return false to proceed to server
        if (world.isRemote)
        {
            return false
        }

        // server side, do calculation here
        else {
            val compound: NBTTagCompound = is.getTagCompound
            if (compound != null)
            {
                val te = world.getTileEntity(x,y,z)
                if (te.isInstanceOf[TileEntityPylon])
                {
                    val pylon = te.asInstanceOf[TileEntityPylon]

                    val teRed = pylon.red
                    val teGreen = pylon.green
                    val teBlue = pylon.blue

                    compound.setInteger("colorRed", teRed)
                    compound.setInteger("colorGreen", teGreen)
                    compound.setInteger("colorBlue", teBlue)
                }
            }

            return true
        }
    }