Adds some more fixes and improvements for vehicle teleportation

src/main/java/net/knarcraft/stargate/portal/GateHandler.java

@@ -391,7 +391,7 @@ public class GateHandler {
      *
      * @param gateFolder <p>The folder containing gate config files</p>
      */
-    public static void populateDefaults(String gateFolder) {
+    private static void populateDefaults(String gateFolder) {
         loadGateFromJar("nethergate.gate", gateFolder);
         loadGateFromJar("watergate.gate", gateFolder);
     }

src/main/java/net/knarcraft/stargate/portal/GateLayout.java

@@ -33,6 +33,18 @@ public class GateLayout {
         readLayout();
     }
 
+    /**
+     * Gets two of the corners of the gate layout creating the smallest box the gate can be contained within
+     *
+     * @return <p>Two of the gate's corners</p>
+     */
+    public RelativeBlockVector[] getCorners() {
+        return new RelativeBlockVector[] {
+                new RelativeBlockVector(0, 0, 0),
+                new RelativeBlockVector(layout[0].length - 1, layout.length - 1, 1)
+        };
+    }
+
     /**
      * Gets the character array describing this layout
      *

src/main/java/net/knarcraft/stargate/portal/Portal.java

@@ -13,6 +13,7 @@ import net.knarcraft.stargate.utility.DirectionHelper;
 import net.knarcraft.stargate.utility.EntityHelper;
 import net.knarcraft.stargate.utility.SignHelper;
 import org.bukkit.Axis;
+import org.bukkit.Chunk;
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.World;
@@ -38,6 +39,9 @@ import java.util.Random;
 import java.util.UUID;
 import java.util.logging.Level;
 
+/**
+ * This class represents a portal in space which points to one or several other portals
+ */
 public class Portal {
 
     // Gate location block info
@@ -54,6 +58,7 @@ public class Portal {
     private BlockLocation button;
     private BlockLocation[] frame;
     private BlockLocation[] entrances;
+
     // Gate information
     private String name;
     private String destination;
@@ -551,7 +556,7 @@ public class Portal {
         // Close this gate, then the dest gate.
         Material closedType = gate.getPortalClosedBlock();
         for (BlockLocation inside : getEntrances()) {
-            Stargate.blockPopulatorQueue.add(new BloxPopulator(inside, closedType));
+            Stargate.blockPopulatorQueue.add(new BloxPopulator(inside, closedType, null));
         }
 
         updatePortalClosedState();
@@ -663,6 +668,8 @@ public class Portal {
             exit = stargatePortalEvent.getExit();
         }
 
+        loadChunks();
+
         // If no event is passed in, assume it's a teleport, and act as such
         if (event == null) {
             exit.setYaw(this.getRotation());
@@ -698,8 +705,6 @@ public class Portal {
         Location traveller = vehicle.getLocation();
         Location exit = getExit(vehicle, traveller);
 
-        adjustRotation(traveller, exit, origin);
-
         double velocity = vehicle.getVelocity().length();
 
         // Stop and teleport
@@ -707,7 +712,10 @@ public class Portal {
 
         // Get new velocity
         final Vector newVelocity = new Vector(modX, 0.0F, modZ);
+        //-z
+        Stargate.debug("teleport", modX + " " + modZ);
         newVelocity.multiply(velocity);
+        adjustRotation(traveller, exit, origin);
 
         List<Entity> passengers = vehicle.getPassengers();
         World vehicleWorld = exit.getWorld();
@@ -716,6 +724,8 @@ public class Portal {
             return;
         }
 
+        loadChunks();
+
         if (!passengers.isEmpty()) {
             if (vehicle instanceof RideableMinecart || vehicle instanceof Boat) {
                 putPassengersInNewVehicle(vehicle, passengers, vehicleWorld, exit, newVelocity);
@@ -770,6 +780,7 @@ public class Portal {
     private void handleVehiclePassengers(List<Entity> passengers, Vehicle targetVehicle, Location exit) {
         for (Entity passenger : passengers) {
             passenger.eject();
+            //TODO: Fix random java.lang.IllegalStateException: Removing entity while ticking!
             if (!passenger.teleport(exit)) {
                 Stargate.debug("handleVehiclePassengers", "Failed to teleport passenger");
             }
@@ -794,9 +805,11 @@ public class Portal {
             exitLocation = exit.modRelativeLoc(0D, 0D, 1, traveller.getYaw(),
                     traveller.getPitch(), modX * back, 1, modZ * back);
 
-            double entitySize = EntityHelper.getEntityMaxSize(entity);
-            if (entitySize > 1) {
-                exitLocation = preventExitSuffocation(relativeExit, exitLocation, entity);
+            if (entity != null) {
+                double entitySize = EntityHelper.getEntityMaxSize(entity);
+                if (entitySize > 1) {
+                    exitLocation = preventExitSuffocation(relativeExit, exitLocation, entity);
+                }
             }
         } else {
             Stargate.log.log(Level.WARNING, Stargate.getString("prefix") + "Missing destination point in .gate file " + gate.getFilename());
@@ -892,13 +905,16 @@ public class Portal {
     }
 
     /**
-     * Checks whether the chunk the portal is located at is loaded
-     *
-     * @return <p>True if the chunk containing the portal is loaded</p>
+     * Loads the chunks at the portal's corners
      */
-    public boolean isChunkLoaded() {
+    public void loadChunks() {
         //TODO: Improve this in the case where the portal sits between two chunks
-        return getWorld().isChunkLoaded(topLeft.getBlock().getChunk());
+        for (RelativeBlockVector vector : gate.getLayout().getCorners()) {
+            Chunk chunk = getBlockAt(vector).getChunk();
+            if (!getWorld().isChunkLoaded(chunk)) {
+                chunk.load();
+            }
+        }
     }
 
     /**

src/main/java/net/knarcraft/stargate/portal/PortalDirection.java

@@ -0,0 +1,7 @@
+package net.knarcraft.stargate.portal;
+
+public class PortalDirection {
+
+
+
+}