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[1.12.2] Water Crafting with dropped items like AE2


CrashDbo

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I am working on a mod that is based off finding crystals and analyzing them to get different attributes. Some will grant an effect on use some will be used in a form of crafting like the AE2 water crafting. I am having trouble finding the code in AE2 that allows the player to toss items in water and have it spawn a new item stack.

 

My main questions I have now are:

What should I be looking for to detect my crystal is in water?

Secondary is when you drop and item on the ground does is then spawn as an entity item?

 

I'm sure I will have many more questions as this develops, but for now thanks to those reading.

Edited by CrashDbo
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52 minutes ago, CrashDbo said:

What should I be looking for to detect my crystal is in water?

You can subscribe to ItemTossEvent and keep track of relevant items, then check to see if your conditions are met within one of the TickEvents. Keep in mind that there's no guarantee that the items remain in the world once thrown, so your list of items should update to remove those that should no longer exist.

55 minutes ago, CrashDbo said:

Secondary is when you drop and item on the ground does is then spawn as an entity item?

Yes. Within the inventory, items are ItemStack objects, while on the ground they're EntityItem objects. You can get the ItemStack represented by an EntityItem through EntityItem#getItem().

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Fancy 3D Graphing Calculator mod, with many different coordinate systems.

Lightweight 3D/2D position/vector transformations library, also with support for different coordinate systems.

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3 hours ago, SerpentDagger said:

You can subscribe to ItemTossEvent and keep track of relevant items, then check to see if your conditions are met within one of the TickEvents

I would recommend creating a custom ItemEntity for your custom item, and return an instance of your ItemEntity in Item#createEntity (as well as override Item#hasCustomEntity to return true).

With this approach you can simply check for water in your EntityItem’s update method.

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