import net.minecraft.block.BlockTripWire; //导入依赖的package包/类
public static void addBush() {
  ShiftedSnowApi.addSimpleClassMapping(BlockBush.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockSign.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockAnvil.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockBush.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockPressurePlate.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockLever.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockRailBase.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockTripWire.class, EnumSnowType.MINUS_FULL);
  ShiftedSnowApi.addSimpleClassMapping(BlockTripWireHook.class, EnumSnowType.MINUS_FULL);
}
 

import net.minecraft.block.BlockTripWire; //导入依赖的package包/类
private boolean isDefered(StructureBlock sb) {
  Block block = GameRegistry.findBlock(sb.getModId(), sb.getBlockName());
  if(block == null) {
    return false;
  }
  
  return block instanceof BlockTorch || block instanceof BlockSand || block instanceof BlockGravel || block instanceof BlockAnvil 
      || block instanceof BlockTripWireHook || block instanceof  BlockTripWire|| block instanceof BlockRedstoneWire;
}