Add RSTileMixin.getGroundItems and RSNPCMixin.getTransformedComposition

runelite-api/src/main/java/net/runelite/api/NPC.java

@@ -37,4 +37,11 @@ public interface NPC extends Actor
 	int getIndex();
 
 	NPCComposition getComposition();
+
+	/**
+	 * Get the composition for this NPC and transform it if required
+	 *
+	 * @return
+	 */
+	NPCComposition getTransformedComposition();
 }

runelite-api/src/main/java/net/runelite/api/Tile.java

@@ -24,6 +24,7 @@
  */
 package net.runelite.api;
 
+import java.util.List;
 import net.runelite.api.coords.LocalPoint;
 import net.runelite.api.coords.WorldPoint;
 
@@ -57,4 +58,11 @@ public interface Tile
 	int getPlane();
 
 	boolean hasLineOfSightTo(Tile other);
+
+	/**
+	 * Get all the ground items for this tile
+	 *
+	 * @return
+	 */
+	List<Item> getGroundItems();
 }

runelite-mixins/src/main/java/net/runelite/mixins/RSNPCMixin.java

@@ -24,6 +24,7 @@
  */
 package net.runelite.mixins;
 
+import net.runelite.api.NPCComposition;
 import net.runelite.api.events.NpcDespawned;
 import net.runelite.api.mixins.Copy;
 import net.runelite.api.mixins.FieldHook;
@@ -136,4 +137,16 @@ public abstract class RSNPCMixin implements RSNPC
 			setSpotAnimFrame(spotAnimFrame);
 		}
 	}
+
+	@Inject
+	@Override
+	public NPCComposition getTransformedComposition()
+	{
+		RSNPCComposition composition = getComposition();
+		if (composition != null && composition.getConfigs() != null)
+		{
+			composition = composition.transform();
+		}
+		return composition;
+	}
 }

runelite-mixins/src/main/java/net/runelite/mixins/RSTileMixin.java

@@ -30,6 +30,9 @@ import net.runelite.api.DecorativeObject;
 import net.runelite.api.GameObject;
 import net.runelite.api.GameState;
 import net.runelite.api.GroundObject;
+import net.runelite.api.Item;
+import net.runelite.api.ItemLayer;
+import net.runelite.api.Node;
 import net.runelite.api.Point;
 import net.runelite.api.Tile;
 import net.runelite.api.WallObject;
@@ -57,6 +60,8 @@ import net.runelite.rs.api.RSClient;
 import net.runelite.rs.api.RSCollisionData;
 import net.runelite.rs.api.RSGameObject;
 import net.runelite.rs.api.RSTile;
+import java.util.ArrayList;
+import java.util.List;
 
 @Mixin(RSTile.class)
 public abstract class RSTileMixin implements RSTile
@@ -386,4 +391,24 @@ public abstract class RSTileMixin implements RSTile
 		// No collision
 		return true;
 	}
+
+	@Inject
+	@Override
+	public List<Item> getGroundItems()
+	{
+		ItemLayer layer = this.getItemLayer();
+		if (layer == null)
+		{
+			return null;
+		}
+
+		List<Item> result = new ArrayList<Item>();
+		Node node = layer.getBottom();
+		while (node instanceof Item)
+		{
+			result.add((Item)node);
+			node = node.getNext();
+		}
+		return result;
+	}
 }