Implements customiseable PortalTravelAgent and updated PlayerPortalEvent.

By: Rigby <rigby@onarandombox.com>

paper-api/src/main/java/org/bukkit/TravelAgent.java

@@ -0,0 +1,70 @@
+package org.bukkit;
+
+public interface TravelAgent {
+
+    /**
+     * Set the Block radius to search in for available portals.
+     *
+     * @param radius The radius in which to search for a portal from the location.
+     * @return
+     */
+    public TravelAgent setSearchRadius(int radius);
+
+    /**
+     * Gets the search radius value for finding an available portal.
+     *
+     * @return Returns the currently set search radius.
+     */
+    public int getSearchRadius();
+
+    /**
+     * Sets the maximum radius from the given location to create a portal.
+     *
+     * @param radius The radius in which to create a portal from the location.
+     * @return
+     */
+    public TravelAgent setCreationRadius(int radius);
+
+    /**
+     * Gets the maximum radius from the given location to create a portal.
+     *
+     * @return Returns the currently set creation radius.
+     */
+    public int getCreationRadius();
+
+    /**
+     * Returns whether the TravelAgent will attempt to create a destination portal or not.
+     *
+     * @return Return whether the TravelAgent should create a destination portal or not.
+     */
+    public boolean getCanCreatePortal();
+
+    /**
+     * Sets whether the TravelAgent should attempt to create a destination portal or not.
+     *
+     * @param create Sets whether the TravelAgent should create a destination portal or not.
+     */
+    public void setCanCreatePortal(boolean create);
+
+    /**
+     * Attempt to find a portal near the given location, if a portal is not found it will attempt to create one.
+     *
+     * @param location The location where the search for a portal should begin.
+     * @return Returns the location of a portal which has been found or returns the location passed to the method if unsuccessful.
+     */
+    public Location findOrCreate(Location location);
+
+    /**
+     * Attempt to find a portal near the given location.
+     *
+     * @return Returns the location of the nearest portal to the location.
+     */
+    public Location findPortal(Location location);
+
+    /**
+     * Attempt to create a portal near the given location.
+     *
+     * @return True if a nether portal was successfully created.
+     */
+    public boolean createPortal(Location location);
+}