Flyweight

public class Block {
    BlockModel blockModel;
    Location location;
    ...
}

public class BlockFactory {
    private static Map<TextureType, BlockModel> gameObjectCache
            = new HashMap<>();

    public static BlockModel createBlockModel(TextureType texture) {
         return gameObjectCache.computeIfAbsent(texture, BlockModel::new);
    }
}

public class WorldEditor {
    List<Block> blocks = new ArrayList<>();

    public void buildBlock(TextureType texture, Location location) {
        BlockModel blockModel = BlockFactory.createBlockModel(texture);
        blocks.add(new Block(blockModel, location));
    }

    public void draw() {
        blocks.forEach(Block::draw);
    }

    public static void main(String[] args) {
        WorldEditor worldEditor = new WorldEditor();
        for(int i = 0; i < 100; i++) {
            worldEditor.buildBlock(TextureType.WATER, Location.getRandomLocation());
        }
        worldEditor.draw();
    }
}