Support all 3 worlds when broadcasting messages to players for an entityId

src/main/java/com/owlmaddie/ModInit.java

 package com.owlmaddie;
 
+import io.netty.buffer.Unpooled;
 import net.fabricmc.api.ModInitializer;
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerWorldEvents;
 import net.fabricmc.fabric.api.networking.v1.ServerPlayNetworking;
 import net.minecraft.entity.Entity;
 import net.minecraft.entity.LivingEntity;
 import net.minecraft.entity.effect.StatusEffectInstance;
 import net.minecraft.entity.effect.StatusEffects;
-import net.minecraft.util.Identifier;
-import net.fabricmc.fabric.api.event.lifecycle.v1.ServerWorldEvents;
-import net.minecraft.server.network.ServerPlayerEntity;
 import net.minecraft.network.PacketByteBuf;
 import net.minecraft.server.MinecraftServer;
-import io.netty.buffer.Unpooled;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.server.world.ServerWorld;
+import net.minecraft.util.Identifier;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -89,8 +90,8 @@ public class ModInit implements ModInitializer {
 
 	// Send new message to all connected players
 	public static void BroadcastPacketMessage(ChatDataManager.EntityChatData chatData) {
-		// TODO: Fix static OVERWORLD reference
-		Entity entity = serverInstance.getOverworld().getEntityById(chatData.entityId);
+		for (ServerWorld world : serverInstance.getWorlds()) {
+			Entity entity = world.getEntityById(chatData.entityId);
 			if (entity != null) {
 				PacketByteBuf buffer = new PacketByteBuf(Unpooled.buffer());
 
@@ -105,6 +106,8 @@ public class ModInit implements ModInitializer {
 					LOGGER.info("Server send message packet to player: " + player.getName().getString());
 					ServerPlayNetworking.send(player, PACKET_S2C_MESSAGE, buffer);
 				}
+				break;
+			}
 		}
 	}