Fix up block state handling, add PotDecorations wrapper

api/src/main/java/com/viaversion/viaversion/api/minecraft/data/StructuredDataKey.java

@@ -40,6 +40,7 @@ import com.viaversion.viaversion.api.minecraft.item.data.FireworkExplosion;
 import com.viaversion.viaversion.api.minecraft.item.data.Fireworks;
 import com.viaversion.viaversion.api.minecraft.item.data.Instrument;
 import com.viaversion.viaversion.api.minecraft.item.data.LodestoneTracker;
+import com.viaversion.viaversion.api.minecraft.item.data.PotDecorations;
 import com.viaversion.viaversion.api.minecraft.item.data.PotionContents;
 import com.viaversion.viaversion.api.minecraft.item.data.SuspiciousStewEffect;
 import com.viaversion.viaversion.api.minecraft.item.data.Unbreakable;
@@ -91,7 +92,7 @@ public final class StructuredDataKey<T> {
     public static final StructuredDataKey<String> NOTE_BLOCK_SOUND = new StructuredDataKey<>("note_block_sound", Type.STRING);
     public static final StructuredDataKey<BannerPatternLayer[]> BANNER_PATTERNS = new StructuredDataKey<>("banner_patterns", BannerPatternLayer.ARRAY_TYPE);
     public static final StructuredDataKey<Integer> BASE_COLOR = new StructuredDataKey<>("base_color", Type.VAR_INT);
-    public static final StructuredDataKey<int[]> POT_DECORATIONS = new StructuredDataKey<>("pot_decorations", Type.VAR_INT_ARRAY_PRIMITIVE);
+    public static final StructuredDataKey<PotDecorations> POT_DECORATIONS = new StructuredDataKey<>("pot_decorations", PotDecorations.TYPE);
     public static final StructuredDataKey<Item[]> CONTAINER = new StructuredDataKey<>("container", Types1_20_5.ITEM_ARRAY);
     public static final StructuredDataKey<BlockStateProperties> BLOCK_STATE = new StructuredDataKey<>("block_state", BlockStateProperties.TYPE);
     public static final StructuredDataKey<Bee[]> BEES = new StructuredDataKey<>("bees", Bee.ARRAY_TYPE);

api/src/main/java/com/viaversion/viaversion/api/minecraft/item/data/PotDecorations.java

@@ -0,0 +1,75 @@
+/*
+ * This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
+ * Copyright (C) 2016-2024 ViaVersion and contributors
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package com.viaversion.viaversion.api.minecraft.item.data;
+
+import com.viaversion.viaversion.api.type.Type;
+import io.netty.buffer.ByteBuf;
+
+public final class PotDecorations {
+
+    public static final Type<PotDecorations> TYPE = new Type<PotDecorations>(PotDecorations.class) {
+        @Override
+        public PotDecorations read(final ByteBuf buffer) throws Exception {
+            return new PotDecorations(Type.VAR_INT_ARRAY_PRIMITIVE.read(buffer));
+        }
+
+        @Override
+        public void write(final ByteBuf buffer, final PotDecorations value) throws Exception {
+            Type.VAR_INT_ARRAY_PRIMITIVE.write(buffer, value.itemIds());
+        }
+    };
+
+    private final int[] itemIds;
+
+    public PotDecorations(final int[] itemIds) {
+        this.itemIds = itemIds;
+    }
+
+    public PotDecorations(final int backItem, final int leftItem, final int rightItem, final int frontItem) {
+        this.itemIds = new int[]{backItem, leftItem, rightItem, frontItem};
+    }
+
+    public int[] itemIds() {
+        return itemIds;
+    }
+
+    public int backItem() {
+        return item(0);
+    }
+
+    public int leftItem() {
+        return item(1);
+    }
+
+    public int rightItem() {
+        return item(2);
+    }
+
+    public int frontItem() {
+        return item(3);
+    }
+
+    private int item(final int index) {
+        return index < 0 || index >= itemIds.length ? -1 : itemIds[index];
+    }
+}

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_20_5to1_20_3/rewriter/BlockItemPacketRewriter1_20_5.java

@@ -56,6 +56,7 @@ import com.viaversion.viaversion.api.minecraft.item.data.FireworkExplosion;
 import com.viaversion.viaversion.api.minecraft.item.data.Fireworks;
 import com.viaversion.viaversion.api.minecraft.item.data.LodestoneTracker;
 import com.viaversion.viaversion.api.minecraft.item.data.ModifierData;
+import com.viaversion.viaversion.api.minecraft.item.data.PotDecorations;
 import com.viaversion.viaversion.api.minecraft.item.data.PotionContents;
 import com.viaversion.viaversion.api.minecraft.item.data.PotionEffect;
 import com.viaversion.viaversion.api.minecraft.item.data.PotionEffectData;
@@ -90,6 +91,8 @@ import com.viaversion.viaversion.util.Either;
 import com.viaversion.viaversion.util.Key;
 import com.viaversion.viaversion.util.UUIDUtil;
 import it.unimi.dsi.fastutil.ints.Int2IntOpenHashMap;
+import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
+import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
@@ -97,8 +100,6 @@ import java.util.Map;
 import java.util.Objects;
 import java.util.UUID;
 import java.util.logging.Level;
-import it.unimi.dsi.fastutil.ints.Int2ObjectMap;
-import it.unimi.dsi.fastutil.ints.Int2ObjectOpenHashMap;
 import org.checkerframework.checker.nullness.qual.Nullable;
 
 public final class BlockItemPacketRewriter1_20_5 extends ItemRewriter<ClientboundPacket1_20_3, ServerboundPacket1_20_5, Protocol1_20_5To1_20_3> {
@@ -683,12 +684,11 @@ public final class BlockItemPacketRewriter1_20_5 extends ItemRewriter<Clientboun
     private void updateBlockState(final StructuredDataContainer data, final CompoundTag blockState) {
         final Map<String, String> properties = new HashMap<>();
         for (final Map.Entry<String, Tag> entry : blockState.entrySet()) {
-            // It's all strings now because ???
+            // Only String and IntTags are valid
             final Tag value = entry.getValue();
             if (value instanceof StringTag) {
                 properties.put(entry.getKey(), ((StringTag) value).getValue());
-            } else if (value instanceof NumberTag) {
+            } else if (value instanceof IntTag) {
-                // TODO Boolean values
                 properties.put(entry.getKey(), Integer.toString(((NumberTag) value).asInt()));
             }
         }
@@ -989,12 +989,12 @@ public final class BlockItemPacketRewriter1_20_5 extends ItemRewriter<Clientboun
 
             final ListTag<StringTag> sherdsTag = tag.getListTag("sherds", StringTag.class);
             if (sherdsTag != null && sherdsTag.size() == 4) {
-                final String sherd1 = sherdsTag.get(0).getValue();
+                final String backSherd = sherdsTag.get(0).getValue();
-                final String sherd2 = sherdsTag.get(1).getValue();
+                final String leftSherd = sherdsTag.get(1).getValue();
-                final String sherd3 = sherdsTag.get(2).getValue();
+                final String rightSherd = sherdsTag.get(2).getValue();
-                final String sherd4 = sherdsTag.get(3).getValue();
+                final String frontSherd = sherdsTag.get(3).getValue();
 
-                data.set(StructuredDataKey.POT_DECORATIONS, new int[]{toItemId(sherd1), toItemId(sherd2), toItemId(sherd3), toItemId(sherd4)});
+                data.set(StructuredDataKey.POT_DECORATIONS, new PotDecorations(toItemId(backSherd), toItemId(leftSherd), toItemId(rightSherd), toItemId(frontSherd)));
             }
 
             final StringTag noteBlockSoundTag = tag.getStringTag("note_block_sound");

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_20_5to1_20_3/rewriter/StructuredDataConverter.java

@@ -23,6 +23,7 @@ import com.github.steveice10.opennbt.tag.builtin.IntArrayTag;
 import com.github.steveice10.opennbt.tag.builtin.ListTag;
 import com.github.steveice10.opennbt.tag.builtin.StringTag;
 import com.github.steveice10.opennbt.tag.builtin.Tag;
+import com.google.common.base.Preconditions;
 import com.viaversion.viaversion.api.minecraft.GameProfile;
 import com.viaversion.viaversion.api.minecraft.HolderSet;
 import com.viaversion.viaversion.api.minecraft.data.StructuredData;
@@ -253,7 +254,7 @@ final class StructuredDataConverter {
         register(StructuredDataKey.NOTE_BLOCK_SOUND, (data, tag) -> getBlockEntityTag(tag).putString("note_block_sound", data));
         register(StructuredDataKey.POT_DECORATIONS, (data, tag) -> {
             final ListTag<StringTag> sherds = new ListTag<>(StringTag.class);
-            for (final int id : data) {
+            for (final int id : data.itemIds()) {
                 final int oldId = Protocol1_20_5To1_20_3.MAPPINGS.getOldItemId(id);
                 sherds.add(new StringTag(Protocol1_20_5To1_20_3.MAPPINGS.itemName(oldId)));
             }
@@ -403,10 +404,16 @@ final class StructuredDataConverter {
                 putHideFlag(tag, HIDE_ARMOR_TRIM);
             }
         });
-
+        register(StructuredDataKey.BLOCK_STATE, ((data, tag) -> {
-        //TODO
+            final CompoundTag blockStateTag = new CompoundTag();
-        // StructuredDataKey<BlockStateProperties> BLOCK_STATE
+            tag.put("BlockStateTag", blockStateTag);
-        // StructuredDataKey<Unit> INTANGIBLE_PROJECTILE
+            for (final Map.Entry<String, String> entry : data.properties().entrySet()) {
+                blockStateTag.putString(entry.getKey(), entry.getValue());
+            }
+        }));
+        register(StructuredDataKey.INTANGIBLE_PROJECTILE, (data, tag) -> {
+            // Nothing
+        });
     }
 
     private static String toItemName(final int id) {
@@ -535,10 +542,9 @@ final class StructuredDataConverter {
 
         //noinspection unchecked
         final DataConverter<T> converter = (DataConverter<T>) REWRITERS.get(data.key());
-        if (converter != null) {
+        Preconditions.checkNotNull(converter, "No converter for %s found", data.key());
         converter.convert(data.value(), tag);
     }
-    }
 
     private static <T> void register(final StructuredDataKey<T> key, final DataConverter<T> converter) {
         REWRITERS.put(key, converter);