chatfilter: Add option to filter game chat

runelite-client/src/main/java/net/runelite/client/plugins/chatfilter/ChatFilterConfig.java

@@ -121,6 +121,17 @@ public interface ChatFilterConfig extends Config
 		return false;
 	}
 
+	@ConfigItem(
+		keyName = "filterGameChat",
+		name = "Filter Game Chat",
+		description = "Filter your game chat messages",
+		position = 8
+	)
+	default boolean filterGameChat()
+	{
+		return false;
+	}
+
 	@ConfigItem(
 		keyName = "collapseGameChat",
 		name = "Collapse Game Chat",

runelite-client/src/main/java/net/runelite/client/plugins/chatfilter/ChatFilterPlugin.java

@@ -179,6 +179,18 @@ public class ChatFilterPlugin extends Plugin
 					blockMessage = message == null;
 				}
 				break;
+			case GAMEMESSAGE:
+			case ENGINE:
+			case ITEM_EXAMINE:
+			case NPC_EXAMINE:
+			case OBJECT_EXAMINE:
+			case SPAM:
+				if (config.filterGameChat())
+				{
+					message = censorMessage(null, message);
+					blockMessage = message == null;
+				}
+				break;
 			case LOGINLOGOUTNOTIFICATION:
 				if (config.filterLogin())
 				{
@@ -269,7 +281,7 @@ public class ChatFilterPlugin extends Plugin
 	{
 		String strippedMessage = jagexPrintableCharMatcher.retainFrom(message)
 			.replace('\u00A0', ' ');
-		if (shouldFilterByName(username))
+		if (username != null && shouldFilterByName(username))
 		{
 			switch (config.filterType())
 			{