PortalEvent additions

This re-adds some of the functionality that the TravelAgent API provided previously

By: Phoenix616 <mail@moep.tv>

paper-api/src/main/java/org/bukkit/event/entity/EntityPortalEvent.java

@@ -14,11 +14,36 @@ import org.jetbrains.annotations.Nullable;
  */
 public class EntityPortalEvent extends EntityTeleportEvent {
     private static final HandlerList handlers = new HandlerList();
+    private int searchRadius = 128;
 
     public EntityPortalEvent(@NotNull final Entity entity, @NotNull final Location from, @Nullable final Location to) {
         super(entity, from, to);
     }
 
+    public EntityPortalEvent(@NotNull Entity entity, @NotNull Location from, @Nullable Location to, int searchRadius) {
+        super(entity, from, to);
+        this.searchRadius = searchRadius;
+    }
+
+    /**
+     * Set the Block radius to search in for available portals.
+     *
+     * @param searchRadius the radius in which to search for a portal from the
+     * location
+     */
+    public void setSearchRadius(int searchRadius) {
+        this.searchRadius = searchRadius;
+    }
+
+    /**
+     * Gets the search radius value for finding an available portal.
+     *
+     * @return the currently set search radius
+     */
+    public int getSearchRadius() {
+        return searchRadius;
+    }
+
     @NotNull
     @Override
     public HandlerList getHandlers() {