Rewrite signs and books components on 1.16 (#2712)

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_16to1_15_2/Protocol1_16To1_15_2.java

@@ -60,6 +60,7 @@ public class Protocol1_16To1_15_2 extends AbstractProtocol<ClientboundPackets1_1
     public static final MappingData MAPPINGS = new MappingData();
     private final EntityRewriter metadataRewriter = new MetadataRewriter1_16To1_15_2(this);
     private final ItemRewriter itemRewriter = new InventoryPackets(this);
+    private final ComponentRewriter componentRewriter = new TranslationMappings(this);
     private TagRewriter tagRewriter;
 
     public Protocol1_16To1_15_2() {
@@ -131,7 +132,6 @@ public class Protocol1_16To1_15_2 extends AbstractProtocol<ClientboundPackets1_1
             }
         });
 
-        ComponentRewriter componentRewriter = new TranslationMappings(this);
         // Handle (relevant) component cases for translatable and score changes
         registerClientbound(ClientboundPackets1_15.CHAT_MESSAGE, new PacketRemapper() {
             @Override
@@ -301,4 +301,8 @@ public class Protocol1_16To1_15_2 extends AbstractProtocol<ClientboundPackets1_1
     public ItemRewriter getItemRewriter() {
         return itemRewriter;
     }
+
+    public ComponentRewriter getComponentRewriter() {
+        return componentRewriter;
+    }
 }

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_16to1_15_2/packets/InventoryPackets.java

@@ -155,8 +155,9 @@ public class InventoryPackets extends ItemRewriter<Protocol1_16To1_15_2> {
     public Item handleItemToClient(Item item) {
         if (item == null) return null;
 
-        if (item.identifier() == 771 && item.tag() != null) {
-            CompoundTag tag = item.tag();
+        CompoundTag tag = item.tag();
+
+        if (item.identifier() == 771 && tag != null) {
             Tag ownerTag = tag.get("SkullOwner");
             if (ownerTag instanceof CompoundTag) {
                 CompoundTag ownerCompundTag = (CompoundTag) ownerTag;
@@ -166,6 +167,17 @@ public class InventoryPackets extends ItemRewriter<Protocol1_16To1_15_2> {
                     ownerCompundTag.put("Id", new IntArrayTag(UUIDIntArrayType.uuidToIntArray(id)));
                 }
             }
+        } else if (item.identifier() == 759 && tag != null) {
+            Tag pages = tag.get("pages");
+            if (pages instanceof ListTag) {
+                for (Tag pageTag : (ListTag) pages) {
+                    if (!(pageTag instanceof StringTag)) {
+                        continue;
+                    }
+                    StringTag page = (StringTag) pageTag;
+                    page.setValue(protocol.getComponentRewriter().processText(page.getValue()).toString());
+                }
+            }
         }
 
         oldToNewAttributes(item);

common/src/main/java/com/viaversion/viaversion/protocols/protocol1_16to1_15_2/packets/WorldPackets.java

@@ -22,6 +22,7 @@ import com.github.steveice10.opennbt.tag.builtin.IntArrayTag;
 import com.github.steveice10.opennbt.tag.builtin.LongArrayTag;
 import com.github.steveice10.opennbt.tag.builtin.StringTag;
 import com.github.steveice10.opennbt.tag.builtin.Tag;
+import com.google.gson.JsonElement;
 import com.viaversion.viaversion.api.minecraft.Position;
 import com.viaversion.viaversion.api.minecraft.chunks.Chunk;
 import com.viaversion.viaversion.api.minecraft.chunks.ChunkSection;
@@ -85,7 +86,7 @@ public class WorldPackets {
 
                     if (chunk.getBlockEntities() == null) return;
                     for (CompoundTag blockEntity : chunk.getBlockEntities()) {
-                        handleBlockEntity(blockEntity);
+                        handleBlockEntity(protocol, blockEntity);
                     }
                 });
             }
@@ -98,7 +99,7 @@ public class WorldPackets {
                     Position position = wrapper.passthrough(Type.POSITION1_14);
                     short action = wrapper.passthrough(Type.UNSIGNED_BYTE);
                     CompoundTag tag = wrapper.passthrough(Type.NBT);
-                    handleBlockEntity(tag);
+                    handleBlockEntity(protocol, tag);
                 });
             }
         });
@@ -106,7 +107,7 @@ public class WorldPackets {
         blockRewriter.registerEffect(ClientboundPackets1_15.EFFECT, 1010, 2001);
     }
 
-    private static void handleBlockEntity(CompoundTag compoundTag) {
+    private static void handleBlockEntity(Protocol1_16To1_15_2 protocol, CompoundTag compoundTag) {
         StringTag idTag = compoundTag.get("id");
         if (idTag == null) return;
 
@@ -132,6 +133,14 @@ public class WorldPackets {
                 skullOwnerTag.put(entry.getKey(), entry.getValue());
             }
             compoundTag.put("SkullOwner", skullOwnerTag);
+        } else if (id.equals("minecraft:sign")) {
+            for (int i = 1; i <= 4; i++) {
+                Tag line = compoundTag.get("Text" + i);
+                if (line instanceof StringTag) {
+                    JsonElement text = protocol.getComponentRewriter().processText(((StringTag) line).getValue());
+                    compoundTag.put("Text" + i, new StringTag(text.toString()));
+                }
+            }
         }
     }
 }