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

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 com.hypixel.hytale.protocol.io.VarInt;
class="kw">import java.lang.foreign.MemorySegment;
class="kw">import java.util.Arrays;
class="kw">import javax.annotation.Nonnull;
class="kw">import javax.annotation.Nullable;

class="kw">public class MapImage {
   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 = 10;
   class="kw">public class="kw">static class="kw">final int VARIABLE_FIELD_COUNT = 2;
   class="kw">public class="kw">static class="kw">final int VARIABLE_BLOCK_START = 18;
   class="kw">public class="kw">static class="kw">final int MAX_SIZE = 20480028;
   class="kw">public int width;
   class="kw">public int height;
   @Nullable
   class="kw">public int[] palette;
   class="kw">public byte bitsPerIndex;
   @Nullable
   class="kw">public byte[] packedIndices;

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

   class="kw">public MapImage(int var1, int var2, @Nullable int[] var3, byte var4, @Nullable byte[] var5) {
      this.width = var1;
      this.height = var2;
      this.palette = var3;
      this.bitsPerIndex = var4;
      this.packedIndices = var5;
   }

   class="kw">public MapImage(@Nonnull MapImage var1) {
      this.width = var1.width;
      this.height = var1.height;
      this.palette = var1.palette;
      this.bitsPerIndex = var1.bitsPerIndex;
      this.packedIndices = var1.packedIndices;
   }

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

      long var2 = var1 + 18L;
      if (var2 > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("MapImage", (int)Math.min(var2, 2147483647L), (int)var0.byteSize());
      }
   }

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

   class="kw">public class="kw">static int getWidth(MemorySegment var0, int var1) {
      class="kw">return var0.get(PacketIO.PROTO_INT, var1 + 1);
   }

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

   class="kw">public class="kw">static int getHeight(MemorySegment var0, int var1) {
      class="kw">return var0.get(PacketIO.PROTO_INT, var1 + 5);
   }

   @Nullable
   class="kw">public class="kw">static int[] getPalette(MemorySegment var0) {
      class="kw">return getPalette(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static int[] getPalette(MemorySegment var0, int var1) {
      if (!hasPalette(var0, var1)) {
         class="kw">return null;
      }

      int var2 = var1 + getValidatedOffset(var0, var1, 10, 18, "Palette");
      long var3 = VarInt.getWithLength(var0, var2);
      if (var3 == -1L) {
         throw ProtocolException.invalidVarInt("Palette");
      }

      int var5 = (int)var3;
      if (var5 > 4096000) {
         throw ProtocolException.arrayTooLong("Palette", var5, 4096000);
      }

      int var6 = (int)(var3 >>> 32);
      if (var2 + var6 + var5 * 4L > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("Palette", (int)Math.min(var2 + var6 + var5 * 4L, 2147483647L), (int)var0.byteSize());
      }

      var2 += var6;
      int[] var7 = new int[var5];
      MemorySegment.copy(var0, PacketIO.PROTO_INT, var2, var7, 0, var5);
      class="kw">return var7;
   }

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

   class="kw">public class="kw">static byte getBitsPerIndex(MemorySegment var0, int var1) {
      class="kw">return var0.get(PacketIO.PROTO_BYTE, var1 + 9);
   }

   @Nullable
   class="kw">public class="kw">static byte[] getPackedIndices(MemorySegment var0) {
      class="kw">return getPackedIndices(var0, 0);
   }

   @Nullable
   class="kw">public class="kw">static byte[] getPackedIndices(MemorySegment var0, int var1) {
      if (!hasPackedIndices(var0, var1)) {
         class="kw">return null;
      }

      int var2 = var1 + getValidatedOffset(var0, var1, 14, 18, "PackedIndices");
      long var3 = VarInt.getWithLength(var0, var2);
      if (var3 == -1L) {
         throw ProtocolException.invalidVarInt("PackedIndices");
      }

      int var5 = (int)var3;
      if (var5 > 4096000) {
         throw ProtocolException.arrayTooLong("PackedIndices", var5, 4096000);
      }

      int var6 = (int)(var3 >>> 32);
      if (var2 + var6 + var5 > var0.byteSize()) {
         throw ProtocolException.bufferTooSmall("PackedIndices", Math.min(var2 + var6 + var5, Integer.MAX_VALUE), (int)var0.byteSize());
      }

      var2 += var6;
      byte[] var7 = new byte[var5];
      MemorySegment.copy(var0, PacketIO.PROTO_BYTE, var2, var7, 0, var5);
      class="kw">return var7;
   }

   class="kw">public class="kw">static boolean hasPalette(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 boolean hasPackedIndices(MemorySegment var0, int var1) {
      byte var2 = var0.get(PacketIO.PROTO_BYTE, var1 + 0);
      class="kw">return (var2 & 2) != 0;
   }

   class="kw">private class="kw">static int getValidatedOffset(MemorySegment var0, int var1, int var2, int var3, String var4) {
      int var5 = var0.get(PacketIO.PROTO_INT, var1 + var2);
      if (var5 >= 0 && var5 <= var0.byteSize() - var1 - var3) {
         class="kw">return var3 + var5;
      } else {
         throw ProtocolException.invalidOffset(var4, var5, (int)var0.byteSize());
      }
   }

   class="kw">private class="kw">static void requireSlot(MemorySegment var0, int var1, int var2, String var3) {
      int var4 = var0.get(PacketIO.PROTO_INT, var1);
      if (var4 != var2) {
         throw ProtocolException.nonCanonicalLayout(var3, var4, var2);
      }
   }

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

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

   class="kw">public class="kw">static MapImage toObject(MemorySegment var0, int var1, @Nullable ReadCursor var2) {
      requireBounds(var0, var1);
      int var3 = var1 + 18;
      int var4 = 0;
      int[] var5 = null;
      if (hasPalette(var0, var1)) {
         requireSlot(var0, var1 + 10, var4, "Palette");
         int var6 = var3 + var4;
         long var7 = VarInt.getWithLength(var0, var6);
         if (var7 == -1L) {
            throw ProtocolException.invalidVarInt("Palette");
         }

         int var9 = (int)var7;
         if (var9 > 4096000) {
            throw ProtocolException.arrayTooLong("Palette", var9, 4096000);
         }

         int var10 = (int)(var7 >>> 32);
         if (var6 + var10 + var9 * 4L > var0.byteSize()) {
            throw ProtocolException.bufferTooSmall("Palette", (int)Math.min(var6 + var10 + var9 * 4L, 2147483647L), (int)var0.byteSize());
         }

         var6 += var10;
         var5 = new int[var9];
         MemorySegment.copy(var0, PacketIO.PROTO_INT, var6, var5, 0, var9);
         var4 = var6 + var9 * 4 - var3;
      } else {
         requireSlot(var0, var1 + 10, -1, "Palette");
      }

      byte[] var13 = null;
      if (hasPackedIndices(var0, var1)) {
         requireSlot(var0, var1 + 14, var4, "PackedIndices");
         int var14 = var3 + var4;
         long var8 = VarInt.getWithLength(var0, var14);
         if (var8 == -1L) {
            throw ProtocolException.invalidVarInt("PackedIndices");
         }

         int var17 = (int)var8;
         if (var17 > 4096000) {
            throw ProtocolException.arrayTooLong("PackedIndices", var17, 4096000);
         }

         int var11 = (int)(var8 >>> 32);
         if (var14 + var11 + var17 > var0.byteSize()) {
            throw ProtocolException.bufferTooSmall("PackedIndices", Math.min(var14 + var11 + var17, Integer.MAX_VALUE), (int)var0.byteSize());
         }

         var14 += var11;
         var13 = new byte[var17];
         MemorySegment.copy(var0, PacketIO.PROTO_BYTE, var14, var13, 0, var17);
         var4 = var14 + var17 - var3;
      } else {
         requireSlot(var0, var1 + 14, -1, "PackedIndices");
      }

      MapImage var16 = new MapImage(
         var0.get(PacketIO.PROTO_INT, var1 + 1), var0.get(PacketIO.PROTO_INT, var1 + 5), var5, var0.get(PacketIO.PROTO_BYTE, var1 + 9), var13
      );
      if (var2 != null) {
         var2.position = var3 + var4;
      }

      class="kw">return var16;
   }

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

      if (this.packedIndices != null) {
         var3 = (byte)(var3 | 2);
      }

      var1.set(PacketIO.PROTO_BYTE, var2 + 0, var3);
      var1.set(PacketIO.PROTO_INT, var2 + 1, this.width);
      var1.set(PacketIO.PROTO_INT, var2 + 5, this.height);
      var1.set(PacketIO.PROTO_BYTE, var2 + 9, this.bitsPerIndex);
      int var4 = var2 + 18;
      if (this.palette != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 10, var4 - var2 - 18);
         if (this.palette.length > 4096000) {
            throw ProtocolException.arrayTooLong("Palette", this.palette.length, 4096000);
         }

         var4 += VarInt.set(var1, var4, this.palette.length);
         MemorySegment.copy(this.palette, 0, var1, PacketIO.PROTO_INT, var4, this.palette.length);
         var4 += this.palette.length * 4;
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 10, -1);
      }

      if (this.packedIndices != null) {
         var1.set(PacketIO.PROTO_INT, var2 + 14, var4 - var2 - 18);
         if (this.packedIndices.length > 4096000) {
            throw ProtocolException.arrayTooLong("PackedIndices", this.packedIndices.length, 4096000);
         }

         var4 += VarInt.set(var1, var4, this.packedIndices.length);
         MemorySegment.copy(this.packedIndices, 0, var1, PacketIO.PROTO_BYTE, var4, this.packedIndices.length);
         var4 += this.packedIndices.length * 1;
      } else {
         var1.set(PacketIO.PROTO_INT, var2 + 14, -1);
      }

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

   class="kw">public int computeSize() {
      int var1 = 18;
      if (this.palette != null) {
         var1 += VarInt.size(this.palette.length) + this.palette.length * 4;
      }

      if (this.packedIndices != null) {
         var1 += VarInt.size(this.packedIndices.length) + this.packedIndices.length * 1;
      }

      class="kw">return var1;
   }

   class="kw">public MapImage clone() {
      MapImage var1 = new MapImage();
      var1.width = this.width;
      var1.height = this.height;
      var1.palette = this.palette != null ? Arrays.copyOf(this.palette, this.palette.length) : null;
      var1.bitsPerIndex = this.bitsPerIndex;
      var1.packedIndices = this.packedIndices != null ? Arrays.copyOf(this.packedIndices, this.packedIndices.length) : null;
      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 MapImage var2)
            ? false
            : this.width == var2.width
               && this.height == var2.height
               && Arrays.equals(this.palette, var2.palette)
               && this.bitsPerIndex == var2.bitsPerIndex
               && Arrays.equals(this.packedIndices, var2.packedIndices);
      }
   }

   @Override
   class="kw">public int hashCode() {
      int var1 = 1;
      var1 = 31 * var1 + Integer.hashCode(this.width);
      var1 = 31 * var1 + Integer.hashCode(this.height);
      var1 = 31 * var1 + Arrays.hashCode(this.palette);
      var1 = 31 * var1 + Byte.hashCode(this.bitsPerIndex);
      class="kw">return 31 * var1 + Arrays.hashCode(this.packedIndices);
   }
}