gt:                 if (model == blocksilverfish$enumtype.getModelBlock())
context: package net.minecraft.block;
  
  import java.util.List;
  import java.util.Random;
  import net.minecraft.block.material.Material;
  import net.minecraft.block.properties.IProperty;
  import net.minecraft.block.properties.PropertyEnum;
  import net.minecraft.block.state.BlockStateContainer;
  import net.minecraft.block.state.IBlockState;
  import net.minecraft.creativetab.CreativeTabs;
  import net.minecraft.entity.monster.EntitySilverfish;
  import net.minecraft.init.Blocks;
  import net.minecraft.item.Item;
  import net.minecraft.item.ItemStack;
  import net.minecraft.util.IStringSerializable;
  import net.minecraft.util.math.BlockPos;
  import net.minecraft.world.World;
  import net.minecraftforge.fml.relauncher.Side;
  import net.minecraftforge.fml.relauncher.SideOnly;
  
  public class BlockSilverfish extends Block
  {
      public static final PropertyEnum<BlockSilverfish.EnumType> VARIANT = PropertyEnum.<BlockSilverfish.EnumType>create("variant", BlockSilverfish.EnumType.class);
  
      public BlockSilverfish()
      {
          super(Material.CLAY);
          this.setDefaultState(this.blockState.getBaseState().withProperty(VARIANT, BlockSilverfish.EnumType.STONE));
          this.setHardness(0.0F);
          this.setCreativeTab(CreativeTabs.DECORATIONS);
      }
  
      /**
       * Returns the quantity of items to drop on block destruction.
       */
      public int quantityDropped(Random random)
      {
          return 0;
      }
  
      public static boolean canContainSilverfish(IBlockState blockState)
      {
          Block block = blockState.getBlock();
          return blockState == Blocks.STONE.getDefaultState().withProperty(BlockStone.VARIANT, BlockStone.EnumType.STONE) || block == Blocks.COBBLESTONE || block == Blocks.STONEBRICK;
      }
  
      protected ItemStack createStackedBlock(IBlockState state)
      {
          switch ((BlockSilverfish.EnumType)state.getValue(VARIANT))
          {
              case COBBLESTONE:
                  return new ItemStack(Blocks.COBBLESTONE);
              case STONEBRICK:
                  return new ItemStack(Blocks.STONEBRICK);
              case MOSSY_STONEBRICK:
                  return new ItemStack(Blocks.STONEBRICK, 1, BlockStoneBrick.EnumType.MOSSY.getMetadata());
              case CRACKED_STONEBRICK:
                  return new ItemStack(Blocks.STONEBRICK, 1, BlockStoneBrick.EnumType.CRACKED.getMetadata());
              case CHISELED_STONEBRICK:
                  return new ItemStack(Blocks.STONEBRICK, 1, BlockStoneBrick.EnumType.CHISELED.getMetadata());
              default:
                  return new ItemStack(Blocks.STONE);
          }
      }
  
      /**
       * Spawns this Block's drops into the World as EntityItems.
       */
      public void dropBlockAsItemWithChance(World worldIn, BlockPos pos, IBlockState state, float chance, int fortune)
      {
          if (!worldIn.isRemote && worldIn.getGameRules().getBoolean("doTileDrops"))
          {
              EntitySilverfish entitysilverfish = new EntitySilverfish(worldIn);
              entitysilverfish.setLocationAndAngles((double)pos.getX() + 0.5D, (double)pos.getY(), (double)pos.getZ() + 0.5D, 0.0F, 0.0F);
              worldIn.spawnEntityInWorld(entitysilverfish);
              entitysilverfish.spawnExplosionParticle();
          }
      }
  
      public ItemStack getItem(World worldIn, BlockPos pos, IBlockState state)
      {
          return new ItemStack(this, 1, state.getBlock().getMetaFromState(state));
      }
  
      /**
       * returns a list of blocks with the same ID, but different meta (eg: wood returns 4 blocks)
       */
      @SideOnly(Side.CLIENT)
      public void getSubBlocks(Item itemIn, CreativeTabs tab, List<ItemStack> list)
      {
          for (BlockSilverfish.EnumType blocksilverfish$enumtype : BlockSilverfish.EnumType.values())
          {
              list.add(new ItemStack(itemIn, 1, blocksilverfish$enumtype.getMetadata()));
          }
      }
  
      /**
       * Convert the given metadata into a BlockState for this Block
       */
      public IBlockState getStateFromMeta(int meta)
      {
          return this.getDefaultState().withProperty(VARIANT, BlockSilverfish.EnumType.byMetadata(meta));
      }
  
      /**
       * Convert the BlockState into the correct metadata value
       */
      public int getMetaFromState(IBlockState state)
      {
          return ((BlockSilverfish.EnumType)state.getValue(VARIANT)).getMetadata();
      }
  
      protected BlockStateContainer createBlockState()
      {
          return new BlockStateContainer(this, new IProperty[] {VARIANT});
      }
  
      public static enum EnumType implements IStringSerializable
      {
          STONE(0, "stone")
          {
              public IBlockState getModelBlock()
              {
                  return Blocks.STONE.getDefaultState().withProperty(BlockStone.VARIANT, BlockStone.EnumType.STONE);
              }
          },
          COBBLESTONE(1, "cobblestone", "cobble")
          {
              public IBlockState getModelBlock()
              {
                  return Blocks.COBBLESTONE.getDefaultState();
              }
          },
          STONEBRICK(2, "stone_brick", "brick")
          {
              public IBlockState getModelBlock()
              {
                  return Blocks.STONEBRICK.getDefaultState().withProperty(BlockStoneBrick.VARIANT, BlockStoneBrick.EnumType.DEFAULT);
              }
          },
          MOSSY_STONEBRICK(3, "mossy_brick", "mossybrick")
          {
              public IBlockState getModelBlock()
              {
                  return Blocks.STONEBRICK.getDefaultState().withProperty(BlockStoneBrick.VARIANT, BlockStoneBrick.EnumType.MOSSY);
              }
          },
          CRACKED_STONEBRICK(4, "cracked_brick", "crackedbrick")
          {
              public IBlockState getModelBlock()
              {
                  return Blocks.STONEBRICK.getDefaultState().withProperty(BlockStoneBrick.VARIANT, BlockStoneBrick.EnumType.CRACKED);
              }
          },
          CHISELED_STONEBRICK(5, "chiseled_brick", "chiseledbrick")
          {
              public IBlockState getModelBlock()
              {
                  return Blocks.STONEBRICK.getDefaultState().withProperty(BlockStoneBrick.VARIANT, BlockStoneBrick.EnumType.CHISELED);
              }
          };
  
          private static final BlockSilverfish.EnumType[] META_LOOKUP = new BlockSilverfish.EnumType[values().length];
          private final int meta;
          private final String name;
          private final String unlocalizedName;
  
          private EnumType(int meta, String name)
          {
              this(meta, name, name);
          }
  
          private EnumType(int meta, String name, String unlocalizedName)
          {
              this.meta = meta;
              this.name = name;
              this.unlocalizedName = unlocalizedName;
          }
  
          public int getMetadata()
          {
              return this.meta;
          }
  
          public String toString()
          {
              return this.name;
          }
  
          public static BlockSilverfish.EnumType byMetadata(int meta)
          {
              if (meta < 0 || meta >= META_LOOKUP.length)
              {
                  meta = 0;
              }
  
              return META_LOOKUP[meta];
          }
  
          public String getName()
          {
              return this.name;
          }
  
          public String getUnlocalizedName()
          {
              return this.unlocalizedName;
          }
  
          public abstract IBlockState getModelBlock();
  
          public static BlockSilverfish.EnumType forModelBlock(IBlockState model)
          {
              for (BlockSilverfish.EnumType blocksilverfish$enumtype : values())
              {
  