Implement anvil

[ShockedPlot7560]

Introduction

As the title suggests, this PR implements the anvils

Relevant issues

• Implemented anvil functionality #6305 PR abandoned and reworked

Changes

API changes

• Introduce a new Durable::isValidRepairMaterial enabling everyone to implement their own verification logic
• Add repairMaterials to ArmorMaterial and ToolTier
• Add repairCost functions in Item

Behavioural changes

• Anvil works

Tests

I tested this PR by doing the following (tick all that apply):

• Writing PHPUnit tests (commit these in the tests/phpunit folder)
• Playtesting using a Minecraft client (provide screenshots or a video)
• Writing a test plugin (provide the code and sample output)
• Other (provide details)

https://youtu.be/d3vcwi_45DY

[IvanCraft623]

Just a quick overview

No longer valid

[dktapps]

My gut reaction to this is: I don't like the code.

I don't think we should be using custom actions for this since the actions are only usable with specific types of transactions. By the way other stuff has been done, different AnvilTransaction classes should be implemented.

I'm also not liking the logic of some of the item comparisons being limited to checking type IDs. Plugins will likely want to implement more complex logic, like using tags or NBT checking.

[dktapps]

I think it would also probably be preferable to have more events, e.g. PlayerItemRenameEvent, PlayerItemRepairEvent, PlayerItemCombineEvent (not sure about this last one). (That being said, if there were transaction types for this instead of actions, it would be a good amount nicer).

Doesn't make much sense to make plugins do complex logic to figure out the action type when we can just tell them directly.

[github-actions]

This PR has been marked as "Waiting on Author", but we haven't seen any activity in 7 days.

If there is no further activity, it will be closed in 28 days.

Note for maintainers: Adding an assignee to the PR will prevent it from being marked as stale.

[kostamax27]

It would be nice to be able to cancel this

[Copilot]

Pull Request Overview

This PR implements anvil functionality by adding new API methods for repair material validation, XP cost calculation, and enhanced anvil behavior. Key changes include new tests for anvil crafting, extended item repair cost handling, and integration of anvil recipes into the crafting manager.

Reviewed Changes

Copilot reviewed 19 out of 19 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
tests/phpunit/crafting/*	Added tests covering material repair and item self-combination recipes for anvils
src/network/mcpe/handler/ItemStackRequestExecutor.php	Integrated AnvilTransaction support and optional anvil crafting action handling
src/item/Item.php	Introduced anvil repair cost management with appropriate tag serialization
src/inventory/transaction/AnvilTransaction.php	Added a new transaction type to validate, execute, and trigger anvil events
src/crafting/*	Added new recipe types (MaterialRepairRecipe, ItemSelfCombineRecipe, etc.) and updated the crafting manager for anvil recipes
src/block/utils/AnvilHelper.php	Encapsulated anvil result calculation logic with XP cost filtering

[Copilot]

The error message contains a grammatical inconsistency; consider changing "are not null" to "is not null" for clarity.

Suggested change

	throw new AssumptionFailedError("Expected that baseItem are not null before executing the event");
	throw new AssumptionFailedError("Expected that baseItem is not null before executing the event");

[Copilot]

Consider adding parentheses to clarify operator precedence, for example: $xpCost += (2 ** $input->getAnvilRepairCost()) - 1;

Suggested change

	$xpCost += 2 ** $input->getAnvilRepairCost() - 1;
	$xpCost += 2 ** $material->getAnvilRepairCost() - 1;
	$xpCost += (2 ** $input->getAnvilRepairCost()) - 1;
	$xpCost += (2 ** $material->getAnvilRepairCost()) - 1;