Saving an ArrayList of Locations and loading them

What would be the best way to save and load a bunch on Locations?
i'm currently saving locations by saving two blocks that are used to select the area, saving the x,y,z coords and then recalculating the area every startup/reload and saving them into one arraylist.
im sure saving them to their or arraylists would be much better however im not sure if its worth the trouble?

i save the locations in a yml file, it works with all worlds and locations currently.

my yml file looks like this as an example:

Code:

Arenas:
  Worlds:
    world:
      Name:
        test1:
          Locations:
            l1:
              X: 36
              Y: 68
              Z: 226
            l2:
              X: 37
              Y: 68
              Z: 227

I load the blocks like this:

Code:

    public static void getBlocks() {
        for(String s: w) {
            for(String b : a) {
               
                if(GGCPlugin.GameSettings.getConfigurationSection(
                    "Arenas.Worlds." + s + ".Name.").getKeys(false).contains(b)) {
                    Bukkit.broadcastMessage("w: "+ s);
                    Bukkit.broadcastMessage("b: "+ b);
               
                int l1x = GGCPlugin.GameSettings.getInt("Arenas.Worlds." + s + ".Name." + b + ".Locations.l1.X");
                int l1y = GGCPlugin.GameSettings.getInt("Arenas.Worlds." + s + ".Name." + b + ".Locations.l1.Y");
                int l1z = GGCPlugin.GameSettings.getInt("Arenas.Worlds." + s + ".Name." + b + ".Locations.l1.Z");
               
                int l2x = GGCPlugin.GameSettings.getInt("Arenas.Worlds." + s + ".Name." + b + ".Locations.l2.X");
                int l2y = GGCPlugin.GameSettings.getInt("Arenas.Worlds." + s + ".Name." + b + ".Locations.l2.Y");
                int l2z = GGCPlugin.GameSettings.getInt("Arenas.Worlds." + s + ".Name." + b + ".Locations.l2.Z");
               
                Location l1 = new Location(Bukkit.getWorld(s),l1x,l1y,l1z);
                Location l2 = new Location(Bukkit.getWorld(s),l2x,l2y,l2z);
               
                Util.loadBlocks(l1, l2);
                }
            }
        }
    }

Simple calculations to get all blocks inside the area:

Code:

   
public static ArrayList<Location> gameArea = new ArrayList<>();
 
 
public static void loadBlocks(Location l1, Location l2) {
        int mix, max, miy, miz, may, maz;
 
        // //
        if (l1.getBlockX() < l2.getBlockX()) {
            mix = l1.getBlockX();
            max = l2.getBlockX();
        } else {
            mix = l2.getBlockX();
            max = l1.getBlockX();
        }
 
        // //
 
        if (l1.getBlockY() < l2.getBlockY()) {
            miy = l1.getBlockY();
            may = l2.getBlockY();
        } else {
            miy = l2.getBlockY();
            may = l1.getBlockY();
        }
        // //
 
        if (l1.getBlockZ() < l2.getBlockZ()) {
            miz = l1.getBlockZ();
            maz = l2.getBlockZ();
        } else {
            miz = l2.getBlockZ();
            maz = l1.getBlockZ();
        }
        // //
 
        for (int x = mix; x <= max; x++) {
            for (int y = miy; y <= may; y++) {
                for (int z = miz; z <= maz; z++) {
                    Location k = new Location(l1.getWorld(), x, y, z);
                    blocks.add(k);
                }
            }
        }
 
        gameArea.addAll(blocks);
 
    }

Any suggestions to improve it?

 

Instead of manually deconstructing a Location's essential data, I create a proxy object that is ConfigurationSerializiable and feed that object straight to the Configuration API which can then read and write the object on its own.