filled method in LocationSerializer

src/org/mcteam/ancientgates/BaseGate.java

@@ -93,14 +93,14 @@ public abstract class BaseGate
 			if (!isHidden) {
 				fillGate();
 			}
-			
-			validate();
 		}
 		else if (isOpen == false && this.isOpen == true) {
 			emptyGate();
 		}
 		
 		this.isOpen = isOpen;
+		
+		validate();
 	}
 	
 	
@@ -131,7 +131,7 @@ public abstract class BaseGate
 	protected void emptyGate()
 	{
 		for (Location l : gateBlockLocations) {
-			if (l.getBlock().getType() == Material.PORTAL) {
+			if (l != null && l.getBlock().getType() == Material.PORTAL) {
 				l.getBlock().setType(Material.AIR);
 			}
 		}

src/org/mcteam/ancientgates/listeners/PluginPlayerListener.java

@@ -45,7 +45,7 @@ public class PluginPlayerListener implements Listener
 			// Check if the gate is open and useable
 			World gateWorld = gate.getLocation().getWorld();
 			
-			if (gate.getLocation() == null || gate.getExit() == null || gate.isOpen() == false || !gateWorld.equals(playerWorld)) {
+			if (gate.isOpen() == false || !gateWorld.equals(playerWorld)) {
 				continue;
 			}
 			

src/org/mcteam/ancientgates/util/LocationSerializer.java

@@ -1,19 +1,58 @@
 package org.mcteam.ancientgates.util;
 
+import java.util.HashMap;
 import java.util.Map;
 
 import org.bukkit.Location;
+import org.bukkit.World;
+import org.bukkit.World.Environment;
+import org.bukkit.WorldCreator;
+import org.mcteam.ancientgates.Plugin;
 
+
+/**
+ * NOTE: We do not care about yaw and pitch for gate locations. So we won't serialize them.
+ */
 public class LocationSerializer 
 {
+	protected static String worldKey = "world";
+	protected static String xKey = "x";
+	protected static String yKey = "y";
+	protected static String zKey = "z";
+	
+
+	protected static World getWorld(String name) 
+	{
+		World world = Plugin.instance.getServer().getWorld(name);
+		
+		if (world == null) {
+			world = Plugin.instance.getServer().createWorld(new WorldCreator(name).environment(Environment.NORMAL));
+		}
+		
+		return world;
+	}
+	
+	
 	public static Map<String, Object> serializeLocation(Location l)
 	{
-		return null;
+		Map<String, Object> serializedLocation = new HashMap<String, Object>();
+		
+		serializedLocation.put(worldKey, l.getWorld().getName());
+		serializedLocation.put(xKey, l.getX());
+		serializedLocation.put(yKey, l.getY());
+		serializedLocation.put(zKey, l.getZ());
+		
+		return serializedLocation;
 	}
 	
 	
 	public static Location deserializeLocation(Map<String, Object> map)
 	{
-		return null;
+		World w = getWorld((String)map.get(worldKey));
+		double x = (Double) map.get(xKey);
+		double y = (Double) map.get(yKey);
+		double z = (Double) map.get(zKey);
+		
+		return new Location(w, x, y, z);
 	}
 }