content: package net.minecraft.world.biome;
  
  import net.minecraft.init.Blocks;
  import net.minecraft.util.BlockPos;
  import net.minecraft.world.World;
  import net.minecraft.world.gen.feature.WorldGenAbstractTree;
  import net.minecraft.world.gen.feature.WorldGenIcePath;
  import net.minecraft.world.gen.feature.WorldGenIceSpike;
  import net.minecraft.world.gen.feature.WorldGenTaiga2;
  
  import java.util.Random;
  
  public class BiomeGenSnow extends BiomeGenBase {
      private final boolean field_150615_aC;
      private final WorldGenIceSpike field_150616_aD = new WorldGenIceSpike();
      private final WorldGenIcePath field_150617_aE = new WorldGenIcePath(4);
  
      public BiomeGenSnow(int id, boolean p_i45378_2_) {
          super(id);
          this.field_150615_aC = p_i45378_2_;
  
          if (p_i45378_2_) {
              this.topBlock = Blocks.snow.getDefaultState();
          }
  
          this.spawnableCreatureList.clear();
      }
  
      public void decorate(World worldIn, Random rand, BlockPos pos) {
          if (this.field_150615_aC) {
              for (int i = 0; i < 3; ++i) {
                  int j = rand.nextInt(16) + 8;
                  int k = rand.nextInt(16) + 8;
                  this.field_150616_aD.generate(worldIn, rand, worldIn.getHeight(pos.add(j, 0, k)));
              }
  
              for (int l = 0; l < 2; ++l) {
                  int i1 = rand.nextInt(16) + 8;
                  int j1 = rand.nextInt(16) + 8;
                  this.field_150617_aE.generate(worldIn, rand, worldIn.getHeight(pos.add(i1, 0, j1)));
              }
          }
  
          super.decorate(worldIn, rand, pos);
      }
  
      public WorldGenAbstractTree genBigTreeChance(Random rand) {
          return new WorldGenTaiga2(false);
      }
  
      protected BiomeGenBase createMutatedBiome(int p_180277_1_) {
          BiomeGenBase biomegenbase = (new BiomeGenSnow(p_180277_1_, true)).func_150557_a(13828095, true).setBiomeName(this.biomeName + " Spikes").setEnableSnow().setTemperatureRainfall(0.0F, 0.5F).setHeight(new BiomeGenBase.Height(this.minHeight + 0.1F, this.maxHeight + 0.1F));
          biomegenbase.minHeight = this.minHeight + 0.3F;
          biomegenbase.maxHeight = this.maxHeight + 0.4F;
          return biomegenbase;
      }
  }
  