Improve several things

BauSystem/BauSystem_RegionDynamic/src/de/steamwar/bausystem/region/DynamicRegionCommand.java

@@ -29,7 +29,6 @@ import de.steamwar.command.AbstractSWCommand;
 import de.steamwar.command.SWCommand;
 import org.bukkit.entity.Player;
 
-import java.util.Optional;
 import java.util.UUID;
 import java.util.stream.Collectors;
 
@@ -44,9 +43,8 @@ public class DynamicRegionCommand extends SWCommand {
     public void placeRegion(Player player) {
         Region region = DynamicRegionSystem.INSTANCE.get(player.getLocation());
         if (!region.getType().isGlobal()) return;
-        Optional<Tile> optionalTile = Tile.fromLocation(player.getLocation());
-        if (optionalTile.isEmpty()) return;
-        Tile tile = optionalTile.get();
+        Tile tile = Tile.fromLocation(player.getLocation()).validOrNull();
+        if (tile == null) return;
 
         // TODO: Replace!
         PathRegion dynamicRegion = new PathRegion(UUID.randomUUID(), tile.getMinX(), tile.getMinZ());