Introduced event-based resource getter interfaces

event-loop/src/main/java/mc/core/events/api/interfaces/LocationProvidingEvent.java

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+package mc.core.events.api.interfaces;
+
+import mc.core.Location;
+
+import java.util.Collection;
+
+public interface LocationProvidingEvent {
+    Collection<Location> getAssociatedLocations();
+}

event-loop/src/main/java/mc/core/events/api/interfaces/PlayerProvidingEvent.java

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+package mc.core.events.api.interfaces;
+
+import mc.core.Location;
+import mc.core.player.Player;
+import sun.reflect.generics.reflectiveObjects.NotImplementedException;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+public interface PlayerProvidingEvent extends LocationProvidingEvent {
+    List<Player> getAssociatedPlayers();
+
+    @Override
+    default Collection<Location> getAssociatedLocations() {
+        List<Player> players = getAssociatedPlayers();
+        if (players.size() == 1)
+            return Collections.singletonList(players.get(0).getLocation());
+        else
+            throw new NotImplementedException();
+    }
+}

event-loop/src/main/java/mc/core/events/api/interfaces/WorldProvidingEvent.java

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+package mc.core.events.api.interfaces;
+
+import mc.core.world.World;
+
+import java.util.Collection;
+
+public interface WorldProvidingEvent {
+    Collection<World> getAssociatedWorlds();
+
+}

event-loop/src/main/java/mc/core/events/api/samples/BlockBreakEvent.java

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+package mc.core.events.api.samples;
+
+import mc.core.Location;
+import mc.core.events.EventBase;
+import mc.core.events.api.interfaces.LocationProvidingEvent;
+import mc.core.events.api.interfaces.PlayerProvidingEvent;
+import mc.core.player.Player;
+
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
+public class BlockBreakEvent extends EventBase implements PlayerProvidingEvent, LocationProvidingEvent {
+    private Player player;
+    // TODO: There should be a proper block reference
+    private Location blockLocation;
+
+
+    @Override
+    public List<Player> getAssociatedPlayers() {
+        return Collections.singletonList(player);
+    }
+
+    @Override
+    public Collection<Location> getAssociatedLocations() {
+        return Collections.singletonList(blockLocation);
+    }
+}