content: package net.minecraft.world.gen.feature;
  
  import net.minecraft.block.Block;
  import net.minecraft.block.BlockTallGrass;
  import net.minecraft.block.material.Material;
  import net.minecraft.block.state.IBlockState;
  import net.minecraft.init.Blocks;
  import net.minecraft.util.BlockPos;
  import net.minecraft.world.World;
  
  import java.util.Random;
  
  public class WorldGenTallGrass extends WorldGenerator {
      private final IBlockState tallGrassState;
  
      public WorldGenTallGrass(BlockTallGrass.EnumType p_i45629_1_) {
          this.tallGrassState = Blocks.tallgrass.getDefaultState().withProperty(BlockTallGrass.TYPE, p_i45629_1_);
      }
  
      public boolean generate(World worldIn, Random rand, BlockPos position) {
          Block block;
  
          while (((block = worldIn.getBlockState(position).getBlock()).getMaterial() == Material.air || block.getMaterial() == Material.leaves) && position.getY() > 0) {
              position = position.down();
          }
  
          for (int i = 0; i < 128; ++i) {
              BlockPos blockpos = position.add(rand.nextInt(8) - rand.nextInt(8), rand.nextInt(4) - rand.nextInt(4), rand.nextInt(8) - rand.nextInt(8));
  
              if (worldIn.isAirBlock(blockpos) && Blocks.tallgrass.canBlockStay(worldIn, blockpos, this.tallGrassState)) {
                  worldIn.setBlockState(blockpos, this.tallGrassState, 2);
              }
          }
  
          return true;
      }
  }
  