private EntityRef createResultItem(String itemResult) {
    String resultText = itemResult;
    int count = 1;
    int starIndex = resultText.indexOf("*");
    if (starIndex > -1) {
      count = Integer.parseInt(resultText.substring(0, starIndex));
      resultText = resultText.substring(starIndex + 1);
    }

    EntityManager entityManager = CoreRegistry.get(EntityManager.class);
    BlockManager blockManager = CoreRegistry.get(BlockManager.class);
    PrefabManager prefabManager = CoreRegistry.get(PrefabManager.class);
    Prefab prefab = prefabManager.getPrefab(resultText);

    EntityRef result;
    if (prefab != null) {
      result = entityManager.create(prefab);
      ItemComponent item = result.getComponent(ItemComponent.class);
      item.stackCount = (byte) count;
      result.saveComponent(item);
    } else {
      BlockItemFactory blockItemFactory = new BlockItemFactory(entityManager);
      BlockFamily blockFamily = blockManager.getBlockFamily(resultText);
      result = blockItemFactory.newInstance(blockFamily, count);
    }
    return result;
  }
 @Override
 public BlockFamily deserialize(EntityData.Value value) {
   if (value.getStringCount() > 0) {
     return blockManager.getBlockFamily(value.getString(0));
   }
   return null;
 }
 @Override
 public List<BlockFamily> deserializeCollection(EntityData.Value value) {
   List<BlockFamily> result = Lists.newArrayListWithCapacity(value.getStringCount());
   for (String item : value.getStringList()) {
     result.add(blockManager.getBlockFamily(item));
   }
   return result;
 }
  @Override
  public void initialise() {
    final BlockManager blockManager = CoreRegistry.get(BlockManager.class);
    lampTurnedOff = blockManager.getBlock("signalling:SignalLampOff");
    lampTurnedOn = blockManager.getBlock("signalling:SignalLampOn");
    signalTransformer = blockManager.getBlock("signalling:SignalTransformer");
    signalPressurePlate = blockManager.getBlock("signalling:SignalPressurePlate");
    signalSwitch = blockManager.getBlock("signalling:SignalSwitch");
    signalLimitedSwitch = blockManager.getBlock("signalling:SignalLimitedSwitch");
    signalButton = blockManager.getBlock("signalling:SignalButton");

    signalOrGate = blockManager.getBlockFamily("signalling:SignalOrGate");
    signalAndGate = blockManager.getBlockFamily("signalling:SignalAndGate");
    signalXorGate = blockManager.getBlockFamily("signalling:SignalXorGate");
    signalNandGate = blockManager.getBlockFamily("signalling:SignalNandGate");

    signalOnDelayGate = blockManager.getBlockFamily("signalling:SignalOnDelayGate");
    signalOffDelayGate = blockManager.getBlockFamily("signalling:SignalOffDelayGate");

    signalSetResetGate = blockManager.getBlockFamily("signalling:SignalSetResetGate");
  }
  @Override
  public void preBegin() {
    createSeasonsChapter();

    StaticJournalChapterHandler chapterHandler = new StaticJournalChapterHandler();

    Prefab stoneItem = prefabManager.getPrefab("WoodAndStone:Stone");
    Prefab toolStoneItem = prefabManager.getPrefab("WoodAndStone:ToolStone");
    Prefab axeHammerHeadItem = prefabManager.getPrefab("WoodAndStone:AxeHammerHead");
    Prefab stickItem = prefabManager.getPrefab("WoodAndStone:Stick");
    Prefab twigItem = prefabManager.getPrefab("WoodAndStone:Twig");
    Prefab resinItem = prefabManager.getPrefab("WoodAndStone:Resin");
    Prefab unlitTorchItem = prefabManager.getPrefab("WoodAndStone:UnlitTorch");
    Prefab flintItem = prefabManager.getPrefab("WoodAndStone:Flint");

    Prefab crudeAxeHammerItem = prefabManager.getPrefab("WoodAndStone:CrudeAxeHammer");
    Prefab stoneHammerItem = prefabManager.getPrefab("WoodAndStone:StoneHammer");

    Block litTorchBlock = blockManager.getBlockFamily("WoodAndStone:LitTorch").getArchetypeBlock();

    List<JournalManager.JournalEntryPart> firstEntry =
        Arrays.asList(
            new TitleJournalPart("Wood and Stone"),
            new TextJournalPart(
                "Where am I? How did I get here? ...\nWhat am I going to do now? ...\n"
                    + "How am I going to survive the night? ...\n\nI should probably start off with building a safe shelter. "
                    + "I need some tools for that.\n\nI should get some sticks from the nearby tree branches and dig in the ground for some "
                    + "stones I might have a use for.\n\nWhile I'm at it, I will probably need something to bind the stick and stone together - "
                    + "twigs, should be good for that.\n\nOnce I get two stones, I should be able to make a Tool Stone (press G to open crafting window)."),
            new RecipeJournalPart(
                new Block[2], new Prefab[] {stoneItem, stoneItem}, null, toolStoneItem, 1),
            new TextJournalPart(
                "Once I get the Tool Stone, by using the Tool Stone on another stone I should be able "
                    + "to make an Axe-Hammer Head."),
            new RecipeJournalPart(
                new Block[2], new Prefab[] {toolStoneItem, stoneItem}, null, axeHammerHeadItem, 1),
            new TextJournalPart(
                "Then I can combine the Axe-Hammer Head with a Stick and a Twig to create a Crude Axe-Hammer."),
            new RecipeJournalPart(
                new Block[3],
                new Prefab[] {axeHammerHeadItem, stickItem, twigItem},
                null,
                crudeAxeHammerItem,
                1));

    chapterHandler.registerJournalEntry("1", firstEntry);

    chapterHandler.registerJournalEntry(
        "2",
        true,
        "Excellent! I got the Axe-Hammer, I should be able to cut some of the trees with it. "
            + "I can also use it to dig stone to get some more Stones for my crafting. It's not perfect but will have to do until I get my hands on a "
            + "better hammer or a pick.");

    chapterHandler.registerJournalEntry(
        "3",
        true,
        "These are big, there is no way I could handle them in my hands. "
            + "I have to build a place where I could work on them. I should place two of the logs on the ground next to each other "
            + "and then place my Axe on it (right-click your Axe-Hammer on the top face of one of the logs).");

    chapterHandler.registerJournalEntry(
        "4",
        true,
        "Now I can work on the logs (to open the interface, press 'E' while pointing "
            + "on the station).\n\nI can store some ingredients in the left-top corner of the station and my axe in the bottom-center "
            + "of the station. It's very crude and won't let me do much, but once I gather 10 Wood Planks I should be able to upgrade it. "
            + "(to upgrade place the ingredients into lower-left corner of the interface and press the 'Upgrade' button)");

    chapterHandler.registerJournalEntry(
        "5",
        true,
        "Finally I can make something more useful than just planks. "
            + "Not only that, but I can also create planks more efficiently! Quality of the workspace speaks for itself.\n\n"
            + "But I still can't make any tools. Hard to make it just out of wood, haha. I should probably find a good place "
            + "to work on stone materials. I should make two tables using planks and sticks.\n\nOnce I get the tables I should place them "
            + "on the ground next to each other and put my Axe-Hammer on top of one of them (same as before).");

    List<JournalManager.JournalEntryPart> stoneHammer =
        Arrays.asList(
            new TimestampJournalPart(),
            new TextJournalPart(
                "Now! On this workstation I should be able to create more durable tools. "
                    + "I should get myself a couple of hammers and finally go mining!"),
            new RecipeJournalPart(
                new Block[3],
                new Prefab[] {stoneItem, twigItem, stickItem},
                null,
                stoneHammerItem,
                1),
            new TextJournalPart(
                "It is going to be dark out there in the mines, I should prepare some torches in advance. "
                    + "I can use some of the Resin found while cutting trees with stick in a crafting window (press G) to "
                    + "create Unlit Torches."),
            new RecipeJournalPart(
                new Block[2], new Prefab[] {resinItem, stickItem}, null, unlitTorchItem, 1),
            new TextJournalPart(
                "Once I get them I should be able to light them up using flint in a crafting window. "
                    + "Just need to make sure not to light too many of them, as the torches last only for a bit of time."),
            new RecipeJournalPart(
                new Block[2], new Prefab[] {unlitTorchItem, flintItem}, litTorchBlock, null, 1));
    chapterHandler.registerJournalEntry("6", stoneHammer);

    journalManager.registerJournalChapter(
        wasChapterId,
        Assets.getTextureRegion("WoodAndStone:journalIcons.WoodAndStone"),
        "Wood and Stone",
        chapterHandler);
  }