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

class="kw">import com.hypixel.hytale.math.util.ChunkUtil;
class="kw">import com.hypixel.hytale.math.util.HashUtil;
class="kw">import com.hypixel.hytale.server.worldgen.util.ObjectPool;
class="kw">import com.hypixel.hytale.server.worldgen.util.cache.SizedTimeoutCache;
class="kw">import java.util.concurrent.TimeUnit;
class="kw">import java.util.function.Function;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class="kw">abstract class CoordinateCache<T> {
   @Nonnull
   class="kw">private class="kw">final SizedTimeoutCache<CoordinateCache.CoordinateKey, T> cache;
   @Nonnull
   class="kw">private class="kw">final ObjectPool<CoordinateCache.CoordinateKey> vectorPool;

   class="kw">public CoordinateCache(int var1, long var2) {
      this.vectorPool = new ObjectPool<>(var1, CoordinateCache.CoordinateKey::new);
      this.cache = new SizedTimeoutCache<>(var2, TimeUnit.SECONDS, var1, var1x -> {
         int var2 = ChunkUtil.xOfChunkIndex(var1x.coord);
         int var3 = ChunkUtil.zOfChunkIndex(var1x.coord);
         class="kw">return this.compute(var1x.seed, var2, var3);
      }, (var1x, var2x) -> {
         this.vectorPool.recycle(var1x);
         this.onRemoval(var2x);
      });
   }

   @Nullable
   class="kw">public T get(int var1, int var2, int var3) {
      class="kw">return this.cache.getWithReusedKey(this.localKey().setLocation(var1, var2, var3), this.vectorPool);
   }

   class="kw">protected class="kw">abstract CoordinateCache.CoordinateKey localKey();

   class="kw">protected class="kw">abstract T compute(int var1, int var2, int var3);

   class="kw">protected class="kw">abstract void onRemoval(T var1);

   class="kw">public class="kw">static class CoordinateKey class="kw">implements Function<CoordinateCache.CoordinateKey, CoordinateCache.CoordinateKey> {
      class="kw">private int seed;
      class="kw">private long coord;
      class="kw">private int hash;

      class="kw">public CoordinateKey() {
         this(0, 0, 0);
      }

      class="kw">public CoordinateKey(int var1, int var2, int var3) {
         this.setLocation(var1, var2, var3);
      }

      class="kw">public int seed() {
         class="kw">return this.seed;
      }

      class="kw">public long coord() {
         class="kw">return this.coord;
      }

      @Nonnull
      class="kw">public CoordinateCache.CoordinateKey setLocation(int var1, int var2, int var3) {
         this.seed = var1;
         this.coord = ChunkUtil.indexChunk(var2, var3);
         this.hash = (int)HashUtil.hash(var1, this.coord);
         class="kw">return this;
      }

      @Nonnull
      class="kw">public CoordinateCache.CoordinateKey apply(@Nonnull CoordinateCache.CoordinateKey var1) {
         this.seed = var1.seed;
         this.coord = var1.coord;
         this.hash = var1.hash;
         class="kw">return this;
      }

      @Override
      class="kw">public int hashCode() {
         class="kw">return this.hash;
      }

      @Override
      class="kw">public boolean equals(Object var1) {
         CoordinateCache.CoordinateKey var2 = (CoordinateCache.CoordinateKey)var1;
         class="kw">return this.seed == var2.seed && this.coord == var2.coord;
      }
   }
}