content: package thebetweenlands.common.block.plant;
  
  import java.util.List;
  import java.util.Random;
  
  import javax.annotation.Nullable;
  
  import com.google.common.collect.ImmutableList;
  
  import net.minecraft.block.Block;
  import net.minecraft.block.BlockDirectional;
  import net.minecraft.block.SoundType;
  import net.minecraft.block.material.Material;
  import net.minecraft.block.properties.IProperty;
  import net.minecraft.block.state.BlockFaceShape;
  import net.minecraft.block.state.BlockStateContainer;
  import net.minecraft.block.state.IBlockState;
  import net.minecraft.entity.EntityLivingBase;
  import net.minecraft.item.Item;
  import net.minecraft.item.ItemStack;
  import net.minecraft.util.BlockRenderLayer;
  import net.minecraft.util.EnumFacing;
  import net.minecraft.util.EnumHand;
  import net.minecraft.util.Mirror;
  import net.minecraft.util.Rotation;
  import net.minecraft.util.math.AxisAlignedBB;
  import net.minecraft.util.math.BlockPos;
  import net.minecraft.util.math.BlockPos.MutableBlockPos;
  import net.minecraft.world.ColorizerFoliage;
  import net.minecraft.world.IBlockAccess;
  import net.minecraft.world.World;
  import net.minecraft.world.biome.BiomeColorHelper;
  import net.minecraftforge.common.IShearable;
  import net.minecraftforge.fml.relauncher.Side;
  import net.minecraftforge.fml.relauncher.SideOnly;
  import thebetweenlands.api.block.ISickleHarvestable;
  import thebetweenlands.client.tab.BLCreativeTabs;
  import thebetweenlands.common.block.ITintedBlock;
  import thebetweenlands.common.registries.BlockRegistry;
  import thebetweenlands.common.registries.ItemRegistry;
  import thebetweenlands.util.OpenSimplexNoise;
  
  public class BlockMoss extends BlockDirectional implements IShearable, ISickleHarvestable, ITintedBlock {
      protected static final AxisAlignedBB MOSS_UP_AABB = new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 0.2D, 1.0D);
      protected static final AxisAlignedBB MOSS_DOWN_AABB = new AxisAlignedBB(0.0D, 0.8D, 0.0D, 1.0D, 1.0D, 1.0D);
      protected static final AxisAlignedBB MOSS_WEST_AABB = new AxisAlignedBB(0.8D, 0.0D, 0.0D, 1.0D, 1.0D, 1.0D);
      protected static final AxisAlignedBB MOSS_EAST_AABB = new AxisAlignedBB(0.0D, 0.0D, 0.0D, 0.2D, 1.0D, 1.0D);
      protected static final AxisAlignedBB MOSS_SOUTH_AABB = new AxisAlignedBB(0.0D, 0.0D, 0.0D, 1.0D, 1.0D, 0.2D);
      protected static final AxisAlignedBB MOSS_NORTH_AABB = new AxisAlignedBB(0.0D, 0.0D, 0.8D, 1.0D, 1.0D, 1.0D);
  
      protected ItemStack sickleHarvestableDrop;
      protected boolean isReplaceable = false;
  
      public final boolean spreading;
      
      private final OpenSimplexNoise spreadingClusterNoise1 = new OpenSimplexNoise(1337);
      private final OpenSimplexNoise spreadingClusterNoise2 = new OpenSimplexNoise(42);
      
      public BlockMoss(boolean spreading) {
          super(Material.PLANTS);
          this.spreading = spreading;
          this.setHardness(0.2F);
          this.setSoundType(SoundType.PLANT);
          this.setCreativeTab(BLCreativeTabs.PLANTS);
          this.setTickRandomly(true);
      }
  
      public BlockMoss setSickleDrop(ItemStack drop) {
          this.sickleHarvestableDrop = drop;
          return this;
      }
  
      public BlockMoss setReplaceable(boolean replaceable) {
          this.isReplaceable = replaceable;
          return this;
      }
  
      @Override
      public boolean isReplaceable(IBlockAccess worldIn, BlockPos pos) {
          return this.isReplaceable;
      }
  
      @Override
      public IBlockState getStateFromMeta(int meta) {
          return this.getDefaultState().withProperty(FACING, EnumFacing.byIndex(meta));
      }
  
      @Override
      public int getMetaFromState(IBlockState state) {
          return state.getValue(FACING).getIndex();
      }
  
      @Override
      public IBlockState getStateForPlacement(World world, BlockPos pos, EnumFacing facing, float hitX, float hitY, float hitZ, int meta, EntityLivingBase placer, EnumHand hand) {
          if (this.canPlaceAt(world, pos, facing)) {
              return this.getDefaultState().withProperty(FACING, facing);
          } else {
              for (EnumFacing enumfacing : EnumFacing.VALUES) {
                  if (world.isSideSolid(pos.offset(enumfacing.getOpposite()), enumfacing, true)) {
                      return this.getDefaultState().withProperty(FACING, enumfacing);
                  }
              }
              return this.getDefaultState();
          }
      }
  
      @Override
      public boolean canPlaceBlockAt(World worldIn, BlockPos pos) {
          for (EnumFacing enumfacing : FACING.getAllowedValues()) {
              if (this.canPlaceAt(worldIn, pos, enumfacing)) {
                  return true;
              }
          }
  
          return false;
      }
  
      private boolean canPlaceAt(World worldIn, BlockPos pos, EnumFacing facing) {
          BlockPos blockPos = pos.offset(facing.getOpposite());
          boolean flag = facing.getAxis().isHorizontal();
          return flag && worldIn.isSideSolid(blockPos, facing, true) || ((facing.equals(EnumFacing.DOWN) || facing.equals(EnumFacing.UP)) && this.canPlaceOn(worldIn, blockPos));
      }
  
      private boolean canPlaceOn(World worldIn, BlockPos pos) {
          IBlockState state = worldIn.getBlockState(pos);
          if (state.isSideSolid(worldIn, pos, EnumFacing.UP)) {
              return true;
          } else {
              return false;
          }
      }
  
      @Override
      @Nullable
      public Item getItemDropped(IBlockState state, Random rand, int fortune) {
          return null;
      }
  
      @Override
      public int quantityDropped(Random rand) {
          return 0;
      }
  
      @Override
      public boolean isShearable(ItemStack item, IBlockAccess world, BlockPos pos) {
          return item.getItem() == ItemRegistry.SYRMORITE_SHEARS || item.getItem() == ItemRegistry.SILT_CRAB_CLAW;
      }
  
      @Override
      public List<ItemStack> onSheared(ItemStack item, IBlockAccess world, BlockPos pos, int fortune) {
          return ImmutableList.of(new ItemStack(Item.getItemFromBlock(this)));
      }
  
      @Override
      public boolean isHarvestable(ItemStack item, IBlockAccess world, BlockPos pos) {
          return true;
      }
  
      @Override
      public List<ItemStack> getHarvestableDrops(ItemStack item, IBlockAccess world, BlockPos pos, int fortune) {
          return this.sickleHarvestableDrop != null ? ImmutableList.of(this.sickleHarvestableDrop.copy()) : ImmutableList.of();
      }
  
      @Override
      public void neighborChanged(IBlockState state, World worldIn, BlockPos pos, Block blockIn, BlockPos fromPos) {
          if (this.checkForDrop(worldIn, pos, state)) {
              EnumFacing facing = (EnumFacing) state.getValue(FACING);
              EnumFacing.Axis axis = facing.getAxis();
              EnumFacing oppositeFacing = facing.getOpposite();
              boolean shouldDrop = false;
              if (axis.isHorizontal() && !worldIn.isSideSolid(pos.offset(oppositeFacing), facing, true)) {
                  shouldDrop = true;
              } else if (axis.isVertical() && !this.canPlaceOn(worldIn, pos.offset(oppositeFacing))) {
                  shouldDrop = true;
              }
              if (shouldDrop) {
                  this.dropBlockAsItem(worldIn, pos, state, 0);
                  worldIn.setBlockToAir(pos);
              }
          }
      }
  
      @Override
      public void onBlockAdded(World worldIn, BlockPos pos, IBlockState state) {
          this.checkForDrop(worldIn, pos, state);
      }
  
      protected boolean checkForDrop(World worldIn, BlockPos pos, IBlockState state) {
          if (state.getBlock() == this && this.canPlaceAt(worldIn, pos, (EnumFacing) state.getValue(FACING))) {
              return true;
          } else {
              if (worldIn.getBlockState(pos).getBlock() == this) {
                  this.dropBlockAsItem(worldIn, pos, state, 0);
                  worldIn.setBlockToAir(pos);
              }
              return false;
          }
      }
  
      @Override
      public IBlockState withRotation(IBlockState state, Rotation rot) {
          return state.withProperty(FACING, rot.rotate((EnumFacing) state.getValue(FACING)));
      }
  
      @Override
      public IBlockState withMirror(IBlockState state, Mirror mirrorIn) {
          return state.withRotation(mirrorIn.toRotation((EnumFacing) state.getValue(FACING)));
      }
  
      @Override
      protected BlockStateContainer createBlockState() {
          return new BlockStateContainer(this, new IProperty[]{FACING});
      }
  
      @Override
      public AxisAlignedBB getBoundingBox(IBlockState state, IBlockAccess source, BlockPos pos) {
          switch ((EnumFacing) state.getValue(FACING)) {
              default:
              case EAST:
                  return MOSS_EAST_AABB;
              case WEST:
                  return MOSS_WEST_AABB;
              case SOUTH:
                  return MOSS_SOUTH_AABB;
              case NORTH:
                  return MOSS_NORTH_AABB;
              case UP:
                  return MOSS_UP_AABB;
              case DOWN:
                  return MOSS_DOWN_AABB;
          }
      }
  
  
      @Nullable
      @Override
      public AxisAlignedBB getCollisionBoundingBox(IBlockState blockState, IBlockAccess worldIn, BlockPos pos) {
          return NULL_AABB;
      }
  
      @Override
      public boolean isOpaqueCube(IBlockState state) {
          return false;
      }
  
      @Override
      public boolean isFullCube(IBlockState state) {
          return false;
      }
  
      @Override
      @SideOnly(Side.CLIENT)
      public BlockRenderLayer getRenderLayer() {
          return BlockRenderLayer.CUTOUT_MIPPED;
      }
  
      @Override
  	public void updateTick(World world, BlockPos pos, IBlockState state, Random rand) {
      	if(this.spreading) {
  			double noiseScale = 0.06;
      		double ridgedNoise = Math.min(
      				Math.abs(this.spreadingClusterNoise1.eval((pos.getX() + 0.5) * noiseScale, (pos.getY() + 0.5) * noiseScale, (pos.getZ() + 0.5) * noiseScale)),
      				Math.abs(this.spreadingClusterNoise2.eval((pos.getX() + 0.5) * noiseScale, (pos.getY() + 0.5) * noiseScale, (pos.getZ() + 0.5) * noiseScale)));
      		
      		boolean spread = ridgedNoise >= 0.065;
      		
  	    	MutableBlockPos checkPos = new MutableBlockPos();
  			byte radius = 2;
  	    	int attempt = 0;
  			for (int xx = pos.getX() - radius; xx <= pos.getX() + radius; ++xx) {
  				for (int zz = pos.getZ() - radius; zz <= pos.getZ() + radius; ++zz) {
  					for (int yy = pos.getY() - radius; yy <= pos.getY() + radius; ++yy) {
  						if (!world.isBlockLoaded(checkPos.setPos(xx, yy, zz))) {
  							return;
  						}
  					}
  				}
  			}
  			if (rand.nextInt(3) == 0) {
  				if(spread) {
  					int maxNearbyMossBlocks = 6;
  					for (int xx = pos.getX() - radius; xx <= pos.getX() + radius; ++xx) {
  						for (int zz = pos.getZ() - radius; zz <= pos.getZ() + radius; ++zz) {
  							for (int yy = pos.getY() - radius; yy <= pos.getY() + radius; ++yy) {
  								if (world.getBlockState(checkPos.setPos(xx, yy, zz)).getBlock() == this) {
  									--maxNearbyMossBlocks;
  									if (maxNearbyMossBlocks <= 0) {
  										return;
  									}
  								}
  							}
  						}
  					}
  					for (attempt = 0; attempt < 30; attempt++) {
  						int xx = pos.getX() + rand.nextInt(3) - 1;
  						int yy = pos.getY() + rand.nextInt(3) - 1;
  						int zz = pos.getZ() + rand.nextInt(3) - 1;
  						int offsetDir = 0;
  						if (xx != pos.getX()) offsetDir++;
  						if (yy != pos.getY()) offsetDir++;
  						if (zz != pos.getZ()) offsetDir++;
  						if (offsetDir > 1)
  							continue;
  						BlockPos offsetPos = new BlockPos(xx, yy, zz);
  						if (world.isAirBlock(offsetPos)) {
  							EnumFacing facing = EnumFacing.byIndex(rand.nextInt(EnumFacing.VALUES.length));
  							EnumFacing.Axis axis = facing.getAxis();
  							EnumFacing oppositeFacing = facing.getOpposite();
  							boolean isInvalid = false;
  							if (axis.isHorizontal() && !world.isSideSolid(offsetPos.offset(oppositeFacing), facing, true)) {
  								isInvalid = true;
  							} else if (axis.isVertical() && !this.canPlaceOn(world, offsetPos.offset(oppositeFacing))) {
  								isInvalid = true;
  							}
  							if (!isInvalid) {
  								world.setBlockState(offsetPos, this.getDefaultState().withProperty(BlockMoss.FACING, facing));
  								break;
  							}
  						}
  					}
  				}
  			} else if(rand.nextInt(27) == 0) {
  				world.setBlockToAir(pos);
  			}
      	}
  	}
      
      @Override
      public BlockFaceShape getBlockFaceShape(IBlockAccess worldIn, IBlockState state, BlockPos pos, EnumFacing face) {
      	return BlockFaceShape.UNDEFINED;
      }
  
      @Override
  	public int getColorMultiplier(IBlockState state, IBlockAccess worldIn, BlockPos pos, int tintIndex) {
  		return worldIn != null && pos != null ? BiomeColorHelper.getFoliageColorAtPos(worldIn, pos) : ColorizerFoliage.getFoliageColorBasic();
  	}
  }
  