Improve warning logs for chunkUpdateManager

core/src/main/java/com/seibel/distanthorizons/core/api/internal/chunkUpdating/WorldChunkUpdateManager.java

@@ -11,6 +11,8 @@ import com.seibel.distanthorizons.core.wrapperInterfaces.world.IServerLevelWrapp
 import org.jetbrains.annotations.Nullable;
 
 import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.concurrent.atomic.AtomicInteger;
 
@@ -28,6 +30,9 @@ public class WorldChunkUpdateManager
 	/** singleton since we only expect to have one world loaded at a time */
 	public static final WorldChunkUpdateManager INSTANCE = new WorldChunkUpdateManager();
 	
+	public static final Set<String> LOGGED_GET_ERROR_MESSAGES = Collections.newSetFromMap(new ConcurrentHashMap<String, Boolean>());
+	
+	
 	/** 
 	 * Queues are only removed during world shutdown.
 	 * The assumption is that there will be a limited number of {@link ILevelWrapper}'s
@@ -37,6 +42,7 @@ public class WorldChunkUpdateManager
 	
 	
 	
+	
 	//=============//
 	// constructor //
 	//=============//
@@ -62,6 +68,7 @@ public class WorldChunkUpdateManager
 		AbstractDhWorld world = SharedApi.getAbstractDhWorld();
 		if (world == null)
 		{
+			// world isn't loaded, no warnings need to be logged
 			return null;
 		}
 		
@@ -73,6 +80,12 @@ public class WorldChunkUpdateManager
 			// but this check confirms it
 			&& !(levelWrapper instanceof IClientLevelWrapper))
 		{
+			String errorMessage = "Unable to find chunk update manager for level ["+levelWrapper+"]-["+levelWrapper.getClass().getName()+"], world environment: ["+world.environment+"], chunk updates may fail. This message will only be logged once.";
+			if (LOGGED_GET_ERROR_MESSAGES.add(errorMessage))
+			{
+				LOGGER.warn(errorMessage);
+			}
+			
 			return null;
 		}
 		else if (
@@ -81,6 +94,12 @@ public class WorldChunkUpdateManager
 				// when hosting a server we only care about the server wrappers
 				&& !(levelWrapper instanceof IServerLevelWrapper))
 		{
+			String errorMessage = "Unable to find chunk update manager for level ["+levelWrapper+"]-["+levelWrapper.getClass().getName()+"], world environment: ["+world.environment+"], chunk updates may fail. This message will only be logged once.";
+			if (LOGGED_GET_ERROR_MESSAGES.add(errorMessage))
+			{
+				LOGGER.warn(errorMessage);
+			}
+			
 			return null;
 		}