Actually make /tp <x, y, z> work

Plugins/Mineplex.MapParser/src/mineplex/mapparser/command/teleport/TeleportCommand.java

@@ -30,6 +30,32 @@ public class TeleportCommand extends BaseCommand
 		return String.format(COORDINATE_FORMAT, in);
 	}
 
+	private static Double parseCoordinate(String in, double beginning)
+	{
+		try
+		{
+			if (in.startsWith("~"))
+			{
+				if (in.length() == 1)
+				{
+					return beginning;
+				}
+
+				String relativeIn = in.substring(1);
+
+				double relative = Double.parseDouble(relativeIn);
+
+				return beginning + relative;
+			}
+
+			return Double.parseDouble(in);
+		}
+		catch (NumberFormatException ex)
+		{
+			return null;
+		}
+	}
+
 	@Override
 	public boolean execute(Player player, String alias, String[] args)
 	{
@@ -82,30 +108,30 @@ public class TeleportCommand extends BaseCommand
 		// Teleport to coordinates...
 		else if (args.length == 3)
 		{
-			List<Float> coordinates = new ArrayList<>();
+			List<Double> coordinates = new ArrayList<>();
 
-			try
+			coordinates.add(parseCoordinate(args[0], player.getLocation().getX()));
+			coordinates.add(parseCoordinate(args[1], player.getLocation().getY()));
+			coordinates.add(parseCoordinate(args[2], player.getLocation().getZ()));
+
+			for (Double coordinate : coordinates)
 			{
-				for (String arg : args)
+				if (coordinate == null)
-				{
-					coordinates.add(Float.parseFloat(arg));
-				}
-			}
-			catch (NumberFormatException ex)
 				{
 					message(player, "Hmm, those coordinates don't look quite right.");
 					return true;
 				}
+			}
 
 			Location destination = player.getLocation().clone();
 			destination.setX(coordinates.get(0));
-			destination.setX(coordinates.get(1));
+			destination.setY(coordinates.get(1));
-			destination.setX(coordinates.get(2));
+			destination.setZ(coordinates.get(2));
 
-			message(player, "You teleported to coordinates ("
+			message(player, "You teleported to ("
-					+ F.name(formatCoordinate(destination.getZ()))
+					+ F.name(formatCoordinate(destination.getX()))
 					+ C.mBody + ", "
-					+ F.name(formatCoordinate(destination.getZ()))
+					+ F.name(formatCoordinate(destination.getY()))
 					+ C.mBody + ", "
 					+ F.name(formatCoordinate(destination.getZ()))
 					+ C.mBody + ").");