Use position in item on object event; add verification handler.

data/events.xml

@@ -59,6 +59,12 @@
       <handler>org.apollo.game.event.handler.impl.BankEventHandler</handler>
     </chain>
   </event>
+  <event>
+    <type>org.apollo.game.event.impl.ItemOnObjectEvent</type>
+    <chain>
+      <handler>org.apollo.game.event.handler.impl.ItemOnObjectVerificationHandler</handler>
+    </chain>
+  </event>
   <event>
     <type>org.apollo.game.event.impl.ClosedInterfaceEvent</type>
     <chain>

src/org/apollo/game/event/handler/impl/ItemOnObjectVerificationHandler.java

@@ -0,0 +1,42 @@
+package org.apollo.game.event.handler.impl;
+
+import org.apollo.game.event.handler.EventHandler;
+import org.apollo.game.event.handler.EventHandlerContext;
+import org.apollo.game.event.impl.ItemOnObjectEvent;
+import org.apollo.game.model.Inventory;
+import org.apollo.game.model.Item;
+import org.apollo.game.model.Player;
+import org.apollo.game.model.inter.bank.BankConstants;
+import org.apollo.game.model.inv.SynchronizationInventoryListener;
+
+/**
+ * An {@link EventHandler} that verifies {@link ItemObObjectEvent}s.
+ * 
+ * @author Major
+ */
+public final class ItemOnObjectVerificationHandler extends EventHandler<ItemOnObjectEvent> {
+
+	@Override
+	public void handle(EventHandlerContext ctx, Player player, ItemOnObjectEvent event) {
+		if (event.getInterfaceId() != SynchronizationInventoryListener.INVENTORY_ID
+				|| event.getInterfaceId() != BankConstants.SIDEBAR_INVENTORY_ID) {
+			ctx.breakHandlerChain();
+			return;
+		}
+
+		Inventory inventory = player.getInventory();
+
+		int slot = event.getSlot();
+		if (slot < 0 || slot >= inventory.capacity()) {
+			ctx.breakHandlerChain();
+			return;
+		}
+
+		Item item = inventory.get(slot);
+		if (item == null || item.getId() != event.getId()) {
+			ctx.breakHandlerChain();
+			return;
+		}
+	}
+
+}

src/org/apollo/game/event/impl/ItemOnObjectEvent.java

@@ -1,6 +1,7 @@
 package org.apollo.game.event.impl;
 
 import org.apollo.game.event.Event;
+import org.apollo.game.model.Position;
 
 /**
  * An {@link Event} sent by the client when an item is used on an object.
@@ -15,14 +16,9 @@ public final class ItemOnObjectEvent extends InventoryItemEvent {
 	private final int objectId;
 
 	/**
-	 * The x coordinate of the object.
+	 * The position of the object.
 	 */
-	private final int x;
-
-	/**
-	 * The y coordinate of the object.
-	 */
-	private final int y;
+	private final Position position;
 
 	/**
 	 * Creates an item on object event.
@@ -37,8 +33,7 @@ public final class ItemOnObjectEvent extends InventoryItemEvent {
 	public ItemOnObjectEvent(int interfaceId, int id, int slot, int objectId, int x, int y) {
 		super(0, interfaceId, id, slot);
 		this.objectId = objectId;
-		this.x = x;
-		this.y = y;
+		this.position = new Position(x, y);
 	}
 
 	/**
@@ -51,21 +46,12 @@ public final class ItemOnObjectEvent extends InventoryItemEvent {
 	}
 
 	/**
-	 * Gets the x coordinate of the object.
+	 * Gets the position of the object.
 	 * 
-	 * @return The x coordinate.
+	 * @return The position.
 	 */
-	public int getX() {
-		return x;
-	}
-
-	/**
-	 * Gets the y coordinate of the object.
-	 * 
-	 * @return The y coordinate.
-	 */
-	public int getY() {
-		return y;
+	public Position getPosition() {
+		return position;
 	}
 
 }