Finish custom Events.

src/org/apollo/game/model/World.java

@@ -27,6 +27,9 @@ import org.apollo.game.model.entity.Entity;
 import org.apollo.game.model.entity.GameObject;
 import org.apollo.game.model.entity.Npc;
 import org.apollo.game.model.entity.Player;
+import org.apollo.game.model.entity.event.Event;
+import org.apollo.game.model.entity.event.EventListener;
+import org.apollo.game.model.entity.event.EventListenerChainSet;
 import org.apollo.game.scheduling.ScheduledTask;
 import org.apollo.game.scheduling.Scheduler;
 import org.apollo.io.EquipmentDefinitionParser;
@@ -91,6 +94,11 @@ public final class World {
 	 */
 	private final CommandDispatcher commandDispatcher = new CommandDispatcher();
 
+	/**
+	 * The EventListenerChainSet for this World.
+	 */
+	private final EventListenerChainSet events = new EventListenerChainSet();
+
 	/**
 	 * The login dispatcher.
 	 */
@@ -279,12 +287,13 @@ public final class World {
 	}
 
 	/**
-	 * Adds entities to sectors in the {@link SectorRepository}.
+	 * Adds an {@link EventListener}, listening for an {@link Event} of the specified type.
 	 * 
-	 * @param entities The entities.
+	 * @param type The type of the Event.
+	 * @param listener The EventListener.
 	 */
-	private void placeEntities(Entity... entities) {
-		Arrays.stream(entities).forEach(entity -> sectors.fromPosition(entity.getPosition()).addEntity(entity));
+	public <E extends Event> void listenFor(Class<E> type, EventListener<E> listener) {
+		events.putListener(type, listener);
 	}
 
 	/**
@@ -348,6 +357,15 @@ public final class World {
 		return scheduler.schedule(task);
 	}
 
+	/**
+	 * Submits the specified {@link Event}, passing it to the listeners..
+	 * 
+	 * @param event The Event.
+	 */
+	public void submit(Event event) {
+		events.notify(event);
+	}
+
 	/**
 	 * Unregisters the specified {@link Npc}.
 	 * 
@@ -382,4 +400,13 @@ public final class World {
 		}
 	}
 
+	/**
+	 * Adds entities to sectors in the {@link SectorRepository}.
+	 * 
+	 * @param entities The entities.
+	 */
+	private void placeEntities(Entity... entities) {
+		Arrays.stream(entities).forEach(entity -> sectors.fromPosition(entity.getPosition()).addEntity(entity));
+	}
+
 }

src/org/apollo/game/model/entity/event/EventListenerChain.java

@@ -3,6 +3,8 @@ package org.apollo.game.model.entity.event;
 import java.util.ArrayList;
 import java.util.List;
 
+import com.google.common.base.MoreObjects;
+
 /**
  * A chain of {@link EventListener}s.
  *
@@ -16,6 +18,20 @@ final class EventListenerChain<E extends Event> {
 	 */
 	private final List<EventListener<E>> listeners = new ArrayList<>();
 
+	/**
+	 * The Class type of this chain.
+	 */
+	private final Class<E> type;
+
+	/**
+	 * Creates the EventListenerChain.
+	 *
+	 * @param type The {@link Class} type of this chain.
+	 */
+	public EventListenerChain(Class<E> type) {
+		this.type = type;
+	}
+
 	/**
 	 * Adds an {@link EventListener} to this chain.
 	 * 
@@ -44,4 +60,8 @@ final class EventListenerChain<E extends Event> {
 		return false;
 	}
 
+	@Override
+	public String toString() {
+		return MoreObjects.toStringHelper(this).add("type", type).add("listeners", listeners).toString();
+	}
 }

src/org/apollo/game/model/entity/event/EventListenerChainSet.java

@@ -31,10 +31,12 @@ public final class EventListenerChainSet {
 	 * Places the {@link EventListenerChain} into this set.
 	 * 
 	 * @param clazz The {@link Class} to associate the EventListenerChain with.
-	 * @param chain The EventListenerChain.
+	 * @param listener The EventListenerChain.
 	 */
-	public <E extends Event> void putListenerChain(Class<E> clazz, EventListenerChain<E> chain) {
-		chains.put(clazz, chain);
+	public <E extends Event> void putListener(Class<E> clazz, EventListener<E> listener) {
+		@SuppressWarnings("unchecked")
+		EventListenerChain<E> chain = (EventListenerChain<E>) chains.computeIfAbsent(clazz, EventListenerChain::new);
+		chain.addListener(listener);
 	}
 
 }