Fix server crash when messaging

Author: Kenny-Hui

src/main/java/com/lx862/svrutil/feature/FancyMessageFeature.java

@@ -14,13 +14,13 @@ public FancyMessageFeature() {
     @Override
     public void readConfig(JsonObject jsonObject) {
         super.readConfig(jsonObject);
-        messageSound = Identifier.tryParse(JsonHelper.getString(jsonObject, "messageSound", "!"));
+        messageSound = Identifier.tryParse(JsonHelper.getString(jsonObject, "soundEffect", "!"));
     }
 
     @Override
     public JsonObject writeConfig() {
         JsonObject jsonObject = super.writeConfig();
-        jsonObject.addProperty("messageSound", messageSound == null ? null : messageSound.toString());
+        jsonObject.addProperty("soundEffect", messageSound == null ? null : messageSound.toString());
         return jsonObject;
     }
 

src/main/java/com/lx862/svrutil/mixin/MessageCommandMixin.java

@@ -5,6 +5,8 @@
 import com.lx862.svrutil.feature.FancyMessageFeature;
 import com.lx862.svrutil.feature.FeatureSet;
 import net.minecraft.network.message.SignedMessage;
+import net.minecraft.network.packet.s2c.play.PlaySoundS2CPacket;
+import net.minecraft.registry.entry.RegistryEntry;
 import net.minecraft.server.command.MessageCommand;
 import net.minecraft.server.command.ServerCommandSource;
 import net.minecraft.server.network.ServerPlayerEntity;
@@ -42,7 +44,7 @@ private static void execute(ServerCommandSource source, Collection<ServerPlayerE
 
                 Identifier soundEffect = ((FancyMessageFeature)FeatureSet.FANCY_MESSAGE.feature).getMessageSound();
                 if(soundEffect != null) {
-                    target.playSound(SoundEvent.of(soundEffect), SoundCategory.MASTER, 1, 1);
+                    target.networkHandler.sendPacket(new PlaySoundS2CPacket(RegistryEntry.of(SoundEvent.of(soundEffect)), SoundCategory.MASTER, target.getX(), target.getY(), target.getZ(), 1, 1, target.getWorld().getRandom().nextLong()));
                 }
 
                 if(afk.afkList.containsKey(target.getUuid()) && source.isExecutedByPlayer()) {