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[1.16.5] How to get item in item frame


Hakak
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Hi I'm new to mod programming. I am making mod where you need to get map that is in item frame. Now I just need to get the map and then grab it's NBT data but I can't get the item in item frame.

Edited by Hakak
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  • Hakak changed the title to [1.16.5] How to get item in item frame

ItemFrames aren't blocks, they're entities, so you'll never see it with GetBlockState.

Edited by Draco18s

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

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  • Hakak changed the title to [SOLVED][1.16.5] How to get item in item frame
14 hours ago, Hakak said:

I had already found the entities and had list of them.

this contains all entities you need to ckeck if the Entity is an instance of ItemFrameEntity or you use
show your code because i think there is a error in your code

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Here is the code

List<Entity> itemFrames = world.getEntities(player, axisalignedBB);
        for (Entity entity: itemFrames) {
            if(entity.getType() == EntityType.ITEM_FRAME){
                ItemFrameEntity Item_Frame = (ItemFrameEntity) entity;
                getNBTDataFromItemFrameItem(Item_Frame, file);
            }
       }

And here is the getNBTDataFromItemFrameItem

public static void getNBTDataFromItemFrameItem(ItemFrameEntity item, File file) throws IOException {
        if(item.getItem().sameItem(new ItemStack(Items.FILLED_MAP))){
            Item map_item = item.getItem().getItem();
            CompoundNBT nbt = map_item.getDefaultInstance().serializeNBT();
            CompressedStreamTools.writeCompressed(nbt, file);
        }
    }

But I have a problem with getting the nbt data of map item.

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  • Hakak changed the title to [1.16.5] How to get item in item frame
20 hours ago, diesieben07 said:

See FilledMapItem.

public static void getNBTDataFromItemFrameItem(ItemFrameEntity item, World world) throws IOException {
        if(item.getItem().sameItem(new ItemStack(Items.FILLED_MAP))){
            fileCount++;
            File file = new File("anything", "data" + fileCount + ".dat");
            try {
                MapData nbt = FilledMapItem.getOrCreateSavedData(item.getItem(), world);
                assert nbt != null;
                CompressedStreamTools.writeCompressed(nbt.serializeNBT(), file);
                System.out.println("done");
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

Now I just get error that it cant serialize the data

java.lang.NullPointerException
[19:59:33] [Render thread/INFO] [STDERR/]: [me.hakak.entityfindmod.commands.findItemFrames:getNBTDataFromItemFrameItem:63]: 	at net.minecraft.world.storage.MapData.save(MapData.java:160)
[19:59:33] [Render thread/INFO] [STDERR/]: [me.hakak.entityfindmod.commands.findItemFrames:getNBTDataFromItemFrameItem:63]: 	at net.minecraft.world.storage.WorldSavedData.serializeNBT(WorldSavedData.java:63)
[19:59:33] [Render thread/INFO] [STDERR/]: [me.hakak.entityfindmod.commands.findItemFrames:getNBTDataFromItemFrameItem:63]: 	at me.hakak.entityfindmod.commands.findItemFrames.getNBTDataFromItemFrameItem(findItemFrames.java:60)

 

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