opponent info: add show opponents in menu

runelite-client/src/main/java/net/runelite/client/plugins/opponentinfo/OpponentInfoConfig.java

@@ -63,4 +63,15 @@ public interface OpponentInfoConfig extends Config
 	{
 		return true;
 	}
+
+	@ConfigItem(
+		keyName = "showOpponentsInMenu",
+		name = "Show opponents in menu",
+		description = "Marks opponents names in the menu which you are attacking or are attacking you (NPC only)",
+		position = 3
+	)
+	default boolean showOpponentsInMenu()
+	{
+		return false;
+	}
 }

runelite-client/src/main/java/net/runelite/client/plugins/opponentinfo/OpponentInfoPlugin.java

@@ -35,10 +35,14 @@ import lombok.Getter;
 import net.runelite.api.Actor;
 import net.runelite.api.Client;
 import net.runelite.api.GameState;
+import net.runelite.api.MenuAction;
+import net.runelite.api.MenuEntry;
+import net.runelite.api.NPC;
 import net.runelite.api.WorldType;
 import net.runelite.api.events.GameStateChanged;
 import net.runelite.api.events.GameTick;
 import net.runelite.api.events.InteractingChanged;
+import net.runelite.api.events.MenuEntryAdded;
 import net.runelite.client.config.ConfigManager;
 import net.runelite.client.eventbus.Subscribe;
 import net.runelite.client.plugins.Plugin;
@@ -159,4 +163,29 @@ public class OpponentInfoPlugin extends Plugin
 			}
 		}
 	}
+
+	@Subscribe
+	public void onMenuEntryAdded(MenuEntryAdded menuEntryAdded)
+	{
+		if (menuEntryAdded.getType() != MenuAction.NPC_SECOND_OPTION.getId()
+			|| !menuEntryAdded.getOption().equals("Attack")
+			|| !config.showOpponentsInMenu())
+		{
+			return;
+		}
+
+		int npcIndex = menuEntryAdded.getIdentifier();
+		NPC npc = client.getCachedNPCs()[npcIndex];
+		if (npc == null)
+		{
+			return;
+		}
+
+		if (npc.getInteracting() == client.getLocalPlayer() || lastOpponent == npc)
+		{
+			MenuEntry[] menuEntries = client.getMenuEntries();
+			menuEntries[menuEntries.length - 1].setTarget("*" + menuEntryAdded.getTarget());
+			client.setMenuEntries(menuEntries);
+		}
+	}
 }