class="kw">package com.hypixel.hytale.protocol;

class="kw">import com.hypixel.hytale.protocol.io.PacketIO;
class="kw">import com.hypixel.hytale.protocol.io.ProtocolException;
class="kw">import com.hypixel.hytale.protocol.io.ReadCursor;
class="kw">import java.lang.foreign.MemorySegment;
class="kw">import java.util.Objects;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class BlockMatcher {
   class="kw">public class="kw">static class="kw">final int NULLABLE_BIT_FIELD_SIZE = 1;
   class="kw">public class="kw">static class="kw">final int FIXED_BLOCK_SIZE = 3;
   class="kw">public class="kw">static class="kw">final int VARIABLE_FIELD_COUNT = 1;
   class="kw">public class="kw">static class="kw">final int VARIABLE_BLOCK_START = 3;
   class="kw">public class="kw">static class="kw">final int MAX_SIZE = 32768026;
   @Nullable
   class="kw">public BlockIdMatcher block;
   @Nonnull
   class="kw">public BlockFace face = BlockFace.None;
   class="kw">public boolean staticFace;

   class="kw">public BlockMatcher() {
   }

   class="kw">public BlockMatcher(@Nullable BlockIdMatcher var1, @Nonnull BlockFace var2, boolean var3) {
      this.block = var1;
      this.face = var2;
      this.staticFace = var3;
   }

   class="kw">public BlockMatcher(@Nonnull BlockMatcher var1) {
      this.block = var1.block;
      this.face = var1.face;
      this.staticFace = var1.staticFace;
   }

   class="kw">public class="kw">static void requireBounds(MemorySegment var0, int var1) {
      if (var1 < 0) {
         throw ProtocolException.invalidOffset("BlockMatcher", var1, (int)var0.byteSize());
      }

      long var2 = var1 + 3L;
      if (var2 > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("BlockMatcher", (int)Math.min(var2, 2147483647L), (int)var0.byteSize());
      }
   }

   @Nullable
   class="kw">public class="kw">static BlockIdMatcher getBlock(MemorySegment var0) {
      class="kw">return getBlock(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static BlockIdMatcher getBlock(MemorySegment var0, int var1) {
      class="kw">return hasBlock(var0, var1) ? BlockIdMatcher.toObject(var0, var1 + 3) : null;
   }

   class="kw">public class="kw">static BlockFace getFace(MemorySegment var0) {
      class="kw">return getFace(var0, 0);
   }

   class="kw">public class="kw">static BlockFace getFace(MemorySegment var0, int var1) {
      class="kw">return BlockFace.fromValue(var0.get(PacketIO.PROTO_BYTE, var1 + 1));
   }

   class="kw">public class="kw">static boolean getStaticFace(MemorySegment var0) {
      class="kw">return getStaticFace(var0, 0);
   }

   class="kw">public class="kw">static boolean getStaticFace(MemorySegment var0, int var1) {
      class="kw">return var0.get(PacketIO.PROTO_BOOL, var1 + 2);
   }

   class="kw">public class="kw">static boolean hasBlock(MemorySegment var0, int var1) {
      byte var2 = var0.get(PacketIO.PROTO_BYTE, var1 + 0);
      class="kw">return (var2 & 1) != 0;
   }

   class="kw">public class="kw">static BlockMatcher toObject(MemorySegment var0) {
      class="kw">return toObject(var0, 0, null);
   }

   class="kw">public class="kw">static BlockMatcher toObject(MemorySegment var0, int var1) {
      class="kw">return toObject(var0, var1, null);
   }

   class="kw">public class="kw">static BlockMatcher toObject(MemorySegment var0, int var1, @Nullable ReadCursor var2) {
      requireBounds(var0, var1);
      int var3 = var1 + 3;
      int var4 = 0;
      ReadCursor var5 = var2 != null ? var2 : new ReadCursor();
      BlockIdMatcher var6 = null;
      if (hasBlock(var0, var1)) {
         var6 = BlockIdMatcher.toObject(var0, var3 + var4, var5);
         var4 = var5.position - var3;
      }

      BlockMatcher var7 = new BlockMatcher(var6, BlockFace.fromValue(var0.get(PacketIO.PROTO_BYTE, var1 + 1)), var0.get(PacketIO.PROTO_BOOL, var1 + 2));
      if (var2 != null) {
         var2.position = var3 + var4;
      }

      class="kw">return var7;
   }

   class="kw">public int serialize(@Nonnull MemorySegment var1, int var2) {
      byte var3 = 0;
      if (this.block != null) {
         var3 = (byte)(var3 | 1);
      }

      var1.set(PacketIO.PROTO_BYTE, var2 + 0, var3);
      var1.set(PacketIO.PROTO_BYTE, var2 + 1, (byte)this.face.getValue());
      var1.set(PacketIO.PROTO_BOOL, var2 + 2, this.staticFace);
      int var4 = var2 + 3;
      if (this.block != null) {
         var4 += this.block.serialize(var1, var4);
      }

      class="kw">return var4 - var2;
   }

   class="kw">public int computeSize() {
      int var1 = 3;
      if (this.block != null) {
         var1 += this.block.computeSize();
      }

      class="kw">return var1;
   }

   class="kw">public BlockMatcher clone() {
      BlockMatcher var1 = new BlockMatcher();
      var1.block = this.block != null ? this.block.clone() : null;
      var1.face = this.face;
      var1.staticFace = this.staticFace;
      class="kw">return var1;
   }

   @Override
   class="kw">public boolean equals(Object var1) {
      if (this == var1) {
         class="kw">return true;
      } else {
         class="kw">return !(var1 class="kw">instanceof BlockMatcher var2)
            ? false
            : Objects.equals(this.block, var2.block) && Objects.equals(this.face, var2.face) && this.staticFace == var2.staticFace;
      }
   }

   @Override
   class="kw">public int hashCode() {
      class="kw">return Objects.hash(this.block, this.face, this.staticFace);
   }
}