[Integration] Get backpack and backpack content?

[Insane96]

I'm trying to add integration to my IguanaTweaks mod. I would like the read the content of the backpack (when worn) and change the weight of the player accordingly.

Seems like that to get the backpack I can use getBackpack(Entity): https://github.com/copygirl/WearableBackpacks/blob/master/src/main/java/net/mcft/copy/backpacks/api/BackpackHelper.java#L49

[copygirl]

You might have to reference the non-API class BackpackDataItems or directly call its getItems(world, player) method via reflection on the IBackpackData return by IBackpack.getData(). (Currently only BackpackDataItems implements IBackpackData, but there was plans for different types of backpacks.)

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... Note to self: There is a possible NPE when calling getItems() without the world argument when lootable backpacks have not generated their loot yet. Huh.

[Insane96]

Wait, am I missing something? IBackpack implements getData() but BackpackDataItems doesn't. It implements getItems(world, player)

[copygirl]

IBackpack backpack = BackpackHelper.getBackpack(player);
if (backpack == null) return;

IBackpackData data = backpack.getData();
if (!(data instanceof BackpackDataItems)) return;

BackpackDataItems dataItems = (BackpackDataItems)data;
ItemStackHandler items = dataItems.getItems(world, player);

[Insane96]

The problem is that with reflection I can't return a type from your mod unless I set it as dependance

[copygirl]

ItemStackHandler is a Forge thing.

[Insane96]

IBackpackData is returned from getData()

On 13 Apr 2018 4:52 pm, "copygirl" notifications@github.com wrote:

ItemStackHandler is a Forge thing.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/copygirl/WearableBackpacks/issues/76#issuecomment-381160846, or mute the thread https://github.com/notifications/unsubscribe-auth/AG2i0F4YYKM2qj77AKxED92d6NiffNsZks5toLu7gaJpZM4TR4YQ .

[copygirl]

I don't have Java stuff set up to write any actual code but there's two things you should do.

• Call getData() and make sure it's a BackpackDataItems by comparing the type name.
• Call getItems(world, player) using reflection on the object returned by getData().

It's similar to what I do in IntermodUtils.

[copygirl]

Closing due to lack of activity.