Hello, I was having some trouble with editing the blocks that spawn when a vanilla structure is generated. Is there a way I can do this without making my own custom class file based off of that Structure?

 

Method I'm attempting to change:

 

 protected IBlockState getBiomeSpecificBlockState(IBlockState blockstateIn)
            {
                net.minecraftforge.event.terraingen.BiomeEvent.GetVillageBlockID event = new net.minecraftforge.event.terraingen.BiomeEvent.GetVillageBlockID(startPiece == null ? null : startPiece.biome, blockstateIn);
                net.minecraftforge.common.MinecraftForge.TERRAIN_GEN_BUS.post(event);
                if (event.getResult() == net.minecraftforge.fml.common.eventhandler.Event.Result.DENY) return event.getReplacement();
                if (this.structureType == 1)
                {
                    if (blockstateIn.getBlock() == Blocks.LOG || blockstateIn.getBlock() == Blocks.LOG2)
                    {
                        return Blocks.SANDSTONE.getDefaultState();
                    }

                    if (blockstateIn.getBlock() == Blocks.COBBLESTONE)
                    {
                        return Blocks.SANDSTONE.getStateFromMeta(BlockSandStone.EnumType.DEFAULT.getMetadata());
                    }

                    if (blockstateIn.getBlock() == Blocks.PLANKS)
                    {
                        return Blocks.SANDSTONE.getStateFromMeta(BlockSandStone.EnumType.SMOOTH.getMetadata());
                    }

                    if (blockstateIn.getBlock() == Blocks.OAK_STAIRS)
                    {
                        return Blocks.SANDSTONE_STAIRS.getDefaultState().withProperty(BlockStairs.FACING, blockstateIn.getValue(BlockStairs.FACING));
                    }

                    if (blockstateIn.getBlock() == Blocks.STONE_STAIRS)
                    {
                        return Blocks.SANDSTONE_STAIRS.getDefaultState().withProperty(BlockStairs.FACING, blockstateIn.getValue(BlockStairs.FACING));
                    }

                    if (blockstateIn.getBlock() == Blocks.GRAVEL)
                    {
                        return Blocks.SANDSTONE.getDefaultState();
                    }
                }
                else if (this.structureType == 3)
                {
                    if (blockstateIn.getBlock() == Blocks.LOG || blockstateIn.getBlock() == Blocks.LOG2)
                    {
                        return Blocks.LOG.getDefaultState().withProperty(BlockOldLog.VARIANT, BlockPlanks.EnumType.SPRUCE).withProperty(BlockLog.LOG_AXIS, blockstateIn.getValue(BlockLog.LOG_AXIS));
                    }

                    if (blockstateIn.getBlock() == Blocks.PLANKS)
                    {
                        return Blocks.PLANKS.getDefaultState().withProperty(BlockPlanks.VARIANT, BlockPlanks.EnumType.SPRUCE);
                    }

                    if (blockstateIn.getBlock() == Blocks.OAK_STAIRS)
                    {
                        return Blocks.SPRUCE_STAIRS.getDefaultState().withProperty(BlockStairs.FACING, blockstateIn.getValue(BlockStairs.FACING));
                    }

                    if (blockstateIn.getBlock() == Blocks.OAK_FENCE)
                    {
                        return Blocks.SPRUCE_FENCE.getDefaultState();
                    }
                }
                else if (this.structureType == 2)
                {
                    if (blockstateIn.getBlock() == Blocks.LOG || blockstateIn.getBlock() == Blocks.LOG2)
                    {
                        return Blocks.LOG2.getDefaultState().withProperty(BlockNewLog.VARIANT, BlockPlanks.EnumType.ACACIA).withProperty(BlockLog.LOG_AXIS, blockstateIn.getValue(BlockLog.LOG_AXIS));
                    }

                    if (blockstateIn.getBlock() == Blocks.PLANKS)
                    {
                        return Blocks.PLANKS.getDefaultState().withProperty(BlockPlanks.VARIANT, BlockPlanks.EnumType.ACACIA);
                    }

                    if (blockstateIn.getBlock() == Blocks.OAK_STAIRS)
                    {
                        return Blocks.ACACIA_STAIRS.getDefaultState().withProperty(BlockStairs.FACING, blockstateIn.getValue(BlockStairs.FACING));
                    }

                    if (blockstateIn.getBlock() == Blocks.COBBLESTONE)
                    {
                        return Blocks.LOG2.getDefaultState().withProperty(BlockNewLog.VARIANT, BlockPlanks.EnumType.ACACIA).withProperty(BlockLog.LOG_AXIS, BlockLog.EnumAxis.Y);
                    }

                    if (blockstateIn.getBlock() == Blocks.OAK_FENCE)
                    {
                        return Blocks.ACACIA_FENCE.getDefaultState();
                    }
                }

                return blockstateIn;
            }

 

Villages spawn in the Ice Plains Biome in my mod, and I'd like some biome-specific blocks to generate on the structures that spawn.

 

Referenced in the StructureVillagePieces.class:

 

IBlockState iblockstate1 = this.getBiomeSpecificBlockState(Blocks.OAK_STAIRS.getDefaultState().withProperty(BlockStairs.FACING, EnumFacing.NORTH));
IBlockState iblockstate2 = this.getBiomeSpecificBlockState(Blocks.OAK_STAIRS.getDefaultState().withProperty(BlockStairs.FACING, EnumFacing.WEST));
IBlockState iblockstate3 = this.getBiomeSpecificBlockState(Blocks.PLANKS.getDefaultState());

 

this.setBlockState(worldIn, iblockstate3, 3, 3, 1, structureBoundingBoxIn);

 

Thanks for any help.

The getBiomeSpecificBlockState method fires the BiomeEvent.GetVillageBlockID event, which allows you to change the IBlockState returned by it based on the Biome.

 

To change the IBlockState:

• Subscribe to the event. Note that it's fired on MinecraftForge.TERRAIN_GEN_BUS rather than MinecraftForge.EVENT_BUS.
• Check that the Biome is Ice Plains.
• Use BiomeEvent.GetVillageBlockID#getOriginal to get the original IBlockState.
• Set the replacement IBlockState with BiomeEvent.GetVillageBlockID#setReplacement.
• Set the event's result to Event.Result.DENY with Event#setResult to use the replacement IBlockState instead of the original.