class="kw">package com.hypixel.hytale.server.worldgen.chunk;

class="kw">import com.hypixel.hytale.server.worldgen.cache.CoreDataCacheEntry;
class="kw">import com.hypixel.hytale.server.worldgen.cache.InterpolatedBiomeCountList;
class="kw">import javax.annotation.Nonnull;

class="kw">public class HeightThresholdInterpolator {
   class="kw">public class="kw">static class="kw">final int MAX_RADIUS = 5;
   class="kw">public class="kw">static class="kw">final int MAX_RADIUS2 = 25;
   class="kw">private class="kw">final ChunkGeneratorExecution execution;
   @Nonnull
   class="kw">private class="kw">final CoreDataCacheEntry[] entries;
   class="kw">private class="kw">final int radius;
   class="kw">private class="kw">final int size;
   class="kw">private class="kw">final int totalSize;

   class="kw">public HeightThresholdInterpolator(ChunkGeneratorExecution var1) {
      this.execution = var1;
      this.radius = 5;
      this.size = 32;
      this.totalSize = this.size + 2 * this.radius;
      this.entries = new CoreDataCacheEntry[this.totalSize * this.totalSize];
   }

   @Nonnull
   class="kw">public CoreDataCacheEntry[] getEntries() {
      class="kw">return this.entries;
   }

   @Nonnull
   class="kw">public HeightThresholdInterpolator populate(int var1) {
      ChunkGenerator var2 = this.execution.getChunkGenerator();
      int var3 = -this.radius;

      for (int var4 = this.size + this.radius; var3 < var4; var3++) {
         int var5 = -this.radius;

         for (int var6 = this.size + this.radius; var5 < var6; var5++) {
            this.setTableEntry(var3, var5, var2.getCoreData(var1, this.execution.globalX(var3), this.execution.globalZ(var5)));
         }
      }

      for (int cxx = 0; cxx < this.size; cxx++) {
         for (int var8 = 0; var8 < this.size; var8++) {
            CoreDataCacheEntry var9 = this.tableEntry(cxx, var8);
            if (var9.biomeCountList == null) {
               InterpolatedBiomeCountList var10 = new InterpolatedBiomeCountList();
               this.generateInterpolatedBiomeCountAt(cxx, var8, var10);
               var9.biomeCountList = var10;
            }

            if (var9.heightNoise == Double.NEGATIVE_INFINITY) {
               var9.heightNoise = var2.generateInterpolatedHeightNoise(var9.biomeCountList);
            }
         }
      }

      class="kw">return this;
   }

   class="kw">public void generateInterpolatedBiomeCountAt(int var1, int var2, @Nonnull InterpolatedBiomeCountList var3) {
      ZoneBiomeResult var4 = this.tableEntry(var1, var2).zoneBiomeResult;
      var3.setCenter(var4);
      int var5 = var4.getBiome().getInterpolation().getRadius();
      int var6 = var5 * var5;

      for (int var7 = -var5; var7 <= var5; var7++) {
         for (int var8 = -var5; var8 <= var5; var8++) {
            if (var7 != 0 || var8 != 0) {
               int var9 = var7 * var7 + var8 * var8;
               if (var9 <= var6) {
                  ZoneBiomeResult var10 = this.tableEntry(var1 + var7, var2 + var8).zoneBiomeResult;
                  var3.add(var10, var9);
               }
            }
         }
      }

      if (var3.getBiomeIds().size() == 1) {
         InterpolatedBiomeCountList.BiomeCountResult var11 = var3.get(var4.getBiome());
         var11.heightNoise = var4.heightmapNoise;
         var11.count = 1;
      }
   }

   class="kw">public double getHeightNoise(int var1, int var2) {
      class="kw">return this.tableEntry(var1, var2).heightNoise;
   }

   class="kw">public float getHeightThreshold(int var1, int var2, int var3, int var4) {
      class="kw">return this.interpolateHeightThreshold(var1, var2, var3, var4);
   }

   class="kw">private float interpolateHeightThreshold(int var1, int var2, int var3, int var4) {
      CoreDataCacheEntry var5 = this.tableEntry(this.execution.localX(var2), this.execution.localZ(var3));
      class="kw">return ChunkGenerator.generateInterpolatedThreshold(var1, var2, var3, var4, var5.biomeCountList);
   }

   class="kw">protected CoreDataCacheEntry tableEntry(int var1, int var2) {
      class="kw">return this.entries[this.indexLocal(var1, var2)];
   }

   class="kw">protected void setTableEntry(int var1, int var2, CoreDataCacheEntry var3) {
      this.entries[this.indexLocal(var1, var2)] = var3;
   }

   class="kw">protected ZoneBiomeResult zoneBiomeResult(int var1, int var2) {
      class="kw">return this.tableEntry(var1, var2).zoneBiomeResult;
   }

   class="kw">public int getLowestNonOne(int var1, int var2) {
      class="kw">return this.execution.getChunkGenerator().generateLowestThresholdDependent(this.tableEntry(var1, var2).biomeCountList);
   }

   class="kw">public int getHighestNonZero(int var1, int var2) {
      class="kw">return this.execution.getChunkGenerator().generateHighestThresholdDependent(this.tableEntry(var1, var2).biomeCountList);
   }

   class="kw">protected int indexLocal(int var1, int var2) {
      class="kw">return (var1 + this.radius) * this.totalSize + var2 + this.radius;
   }
}