ShrinkRodSnippit

//Placed at the end of OnUpdate() in either EntityPlayer or EntityPlayerSP
        if(Mouse.isButtonDown(1) && checksum <= 0 && inventory.getCurrentItem() != null && onGround && !isSneaking() && inventory.getCurrentItem().itemID == 4097)
        {
            if(yOffset == 0.62F)
            {
                yOffset = 1.62F;
                setSize(0.6F, 1.8F);
                setPosition(posX, posY + 1.0D, posZ);
                checksum = 10;
            } else
            {
                yOffset = 0.62F;
                setSize(0.6F, 0.8F);
                setPosition(posX, posY, posZ);
                checksum = 10;
            }
        }
        if(checksum > 0)
        {
            checksum--;
        }