ItemSlab.java 文件源码

public boolean canPlaceBlockOnSide(World worldIn, BlockPos pos, EnumFacing side, EntityPlayer player, ItemStack stack)
{
    BlockPos blockpos = pos;
    IProperty<?> iproperty = this.singleSlab.getVariantProperty();
    Comparable<?> comparable = this.singleSlab.getTypeForItem(stack);
    IBlockState iblockstate = worldIn.getBlockState(pos);

    if (iblockstate.getBlock() == this.singleSlab)
    {
        boolean flag = iblockstate.getValue(BlockSlab.HALF) == BlockSlab.EnumBlockHalf.TOP;

        if ((side == EnumFacing.UP && !flag || side == EnumFacing.DOWN && flag) && comparable == iblockstate.getValue(iproperty))
        {
            return true;
        }
    }

    pos = pos.offset(side);
    IBlockState iblockstate1 = worldIn.getBlockState(pos);
    return iblockstate1.getBlock() == this.singleSlab && comparable == iblockstate1.getValue(iproperty) ? true : super.canPlaceBlockOnSide(worldIn, blockpos, side, player, stack);
}