Use all 1.19.80 Bedrock legacy codes for color downsampling

This will make RGB downsampling a bit more colorful.

core/src/main/java/org/geysermc/geyser/translator/text/MessageTranslator.java

@@ -29,8 +29,10 @@ import com.github.steveice10.mc.protocol.data.DefaultComponentSerializer;
 import com.github.steveice10.mc.protocol.data.game.scoreboard.TeamColor;
 import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.TranslatableComponent;
+import net.kyori.adventure.text.format.TextColor;
 import net.kyori.adventure.text.renderer.TranslatableComponentRenderer;
 import net.kyori.adventure.text.serializer.gson.GsonComponentSerializer;
+import net.kyori.adventure.text.serializer.legacy.CharacterAndFormat;
 import net.kyori.adventure.text.serializer.legacy.LegacyComponentSerializer;
 import net.kyori.adventure.text.serializer.plain.PlainTextComponentSerializer;
 import org.cloudburstmc.protocol.bedrock.packet.TextPacket;
@@ -48,6 +50,9 @@ public class MessageTranslator {
     // Possible TODO: replace the legacy hover event serializer with an empty one since we have no use for hover events
     private static final GsonComponentSerializer GSON_SERIALIZER;
 
+    private static final LegacyComponentSerializer LEGACY_SERIALIZER;
+    private static final String ALL_COLORS;
+
     // Store team colors for player names
     private static final Map<TeamColor, String> TEAM_COLORS = new EnumMap<>(TeamColor.class);
 
@@ -93,6 +98,48 @@ public class MessageTranslator {
         GSON_SERIALIZER = new GsonComponentSerializerWrapper(source);
         // Tell MCProtocolLib to use this serializer, too.
         DefaultComponentSerializer.set(GSON_SERIALIZER);
+
+        LegacyComponentSerializer legacySerializer;
+        String allColors;
+        try {
+            Class.forName("net.kyori.adventure.text.serializer.legacy.CharacterAndFormat");
+
+            List<CharacterAndFormat> formats = new ArrayList<>(CharacterAndFormat.defaults());
+            // The following two do not yet exist on Bedrock - https://bugs.mojang.com/browse/MCPE-41729
+            formats.remove(CharacterAndFormat.STRIKETHROUGH);
+            formats.remove(CharacterAndFormat.UNDERLINED);
+
+            formats.add(CharacterAndFormat.characterAndFormat('g', TextColor.color(221, 214, 5))); // Minecoin Gold
+            // Add the new characters implemented in 1.19.80
+            formats.add(CharacterAndFormat.characterAndFormat('h', TextColor.color(227, 212, 209))); // Quartz
+            formats.add(CharacterAndFormat.characterAndFormat('i', TextColor.color(206, 212, 202))); // Iron
+            formats.add(CharacterAndFormat.characterAndFormat('j', TextColor.color(68, 58, 59))); // Netherite
+            formats.add(CharacterAndFormat.characterAndFormat('m', TextColor.color(151, 22, 7))); // Redstone
+            formats.add(CharacterAndFormat.characterAndFormat('n', TextColor.color(180, 104, 77))); // Copper
+            formats.add(CharacterAndFormat.characterAndFormat('p', TextColor.color(222, 177, 45))); // Gold
+            formats.add(CharacterAndFormat.characterAndFormat('q', TextColor.color(17, 160, 54))); // Emerald
+            formats.add(CharacterAndFormat.characterAndFormat('s', TextColor.color(44, 186, 168))); // Diamond
+            formats.add(CharacterAndFormat.characterAndFormat('t', TextColor.color(33, 73, 123))); // Lapis
+            formats.add(CharacterAndFormat.characterAndFormat('u', TextColor.color(154, 92, 198))); // Amethyst
+
+            legacySerializer = LegacyComponentSerializer.legacySection().toBuilder()
+                    .formats(formats)
+                    .build();
+
+            StringBuilder colorBuilder = new StringBuilder();
+            for (CharacterAndFormat format : formats) {
+                if (format.format() instanceof TextColor) {
+                    colorBuilder.append(format.character());
+                }
+            }
+            allColors = colorBuilder.toString();
+        } catch (ClassNotFoundException ignored) {
+            // Velocity doesn't have this yet.
+            legacySerializer = LegacyComponentSerializer.legacySection();
+            allColors = "0123456789abcdef";
+        }
+        LEGACY_SERIALIZER = legacySerializer;
+        ALL_COLORS = allColors;
     }
 
     /**
@@ -107,7 +154,7 @@ public class MessageTranslator {
             // Translate any components that require it
             message = RENDERER.render(message, locale);
 
-            String legacy = LegacyComponentSerializer.legacySection().serialize(message);
+            String legacy = LEGACY_SERIALIZER.serialize(message);
 
             StringBuilder finalLegacy = new StringBuilder();
             char[] legacyChars = legacy.toCharArray();
@@ -123,16 +170,13 @@ public class MessageTranslator {
                 }
 
                 char next = legacyChars[++i];
-                if (next != 'm' && next != 'n') {
+                if (ALL_COLORS.indexOf(next) != -1) {
-                    // Strikethrough and underline do not exist on Bedrock
-                    if ((next >= '0' && next <= '9') || (next >= 'a' && next <= 'f')) {
                     // Append this color code, as well as a necessary reset code
                     if (!lastFormatReset) {
                         finalLegacy.append(RESET);
                     }
                 }
                 finalLegacy.append(BASE).append(next);
-                }
                 lastFormatReset = next == 'r';
             }
 

gradle/libs.versions.toml

@@ -13,7 +13,7 @@ protocol = "3.0.0.Beta1-SNAPSHOT"
 raknet = "0.0.1.Final-SNAPSHOT"
 mcauthlib = "d9d773e"
 mcprotocollib = "1.19.4-math2-SNAPSHOT"
-adventure = "4.14.0-20230418.205641-5"
+adventure = "4.14.0-20230424.215040-7"
 adventure-platform = "4.1.2"
 junit = "5.9.2"
 checkerframework = "3.19.0"