GH-140 Bump run server version to 1.21.4 and add old legacy hex color transformers

[CitralFlo]

Description

Please provide a brief summary of the changes made in this PR. Include references to any related issues or discussions,
if relevant.

Example: "This PR resolves issue #10. The issue addressed..."

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• Bugfix
• Feature
• Code style update
• Refactor
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• Documentation code
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• Tests for the changes have been added (where possible)
• Documentation (README.md, CONTRIBUTING.md) has been updated, if needed
• All new and existing tests have passed

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[coderabbitai]

Walkthrough

This pull request updates the Minecraft server configuration in the build file by changing the version from "1.20.4" to "1.21.4". In addition, it enhances the legacy color formatting support. A new pattern for hexadecimal color codes, HEX_COLOR_PATTERN, is added to match strings with an &x prefix followed by color codes. The conversion logic in the legacyToAdventure method is updated to handle this new format and convert it into a standardized format. A new unit test, testLegacyHexToAdventure, is included to verify that the conversion accurately transforms the legacy hex color codes. No changes were made to the public API declarations aside from these additions.

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 2e26289 and 445c9e2.

📒 Files selected for processing (3)

• build.gradle.kts (1 hunks)
• chatformatter-core/src/main/java/com/eternalcode/formatter/legacy/Legacy.java (2 hunks)
• chatformatter-core/src/test/java/com/eternalcode/formatter/legacy/LegacyTest.java (1 hunks)

🔇 Additional comments (5)

build.gradle.kts (1)

88-88:

✅ Verification successful

Check if this is a valid Minecraft version

The Minecraft version has been updated to "1.21.4", but this version number doesn't appear to be released yet. As of early 2024, Minecraft had only reached version 1.20.x.

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🌐 Web query:

What is the latest version of Minecraft Java Edition in 2025?

💡 Result:

The latest version of Minecraft: Java Edition as of March 2025 is 1.21.4, known as The Garden Awakens, released on December 3, 2024[3][8]. This update introduced features like the Pale Garden biome, new pig variants (warm and cold pigs), wildflowers, and leaf litter blocks[2][4].

Upcoming Version: Spring Drop 2025 (1.21.5)

Mojang is currently developing the next update, tentatively titled Spring Drop 2025 (assumed version 1.21.5), with planned features including:

• Cow variants (temperature-based biome spawns)[12].
• Ambient desert sounds and dancing firefly particles[12].
• New bush plant blocks and expanded leaf particle effects[12][7].
• Technical additions like hexadecimal/binary number support in commands and new entity/item tags[4].

The Spring Drop is expected to release around March 25, 2025, based on snapshot testing timelines[2][4]. Mojang will reveal more details during Minecraft LIVE 2025 on March 22, 2025[14].

Version History Recap (2024–2025)

Version	Name	Release Date	Key Features
1.21.4	The Garden Awakens	Dec 3, 2024	Pale Garden biome, pig variants[2][8]
1.21.3	Bundles of Bravery	Oct 23, 2024	New combat items, wolf variants[2][8]
1.21 (Tricky Trials)	–	Jun 13, 2024	Trial Chambers, breeze mob[8]

For multiplayer compatibility, ensure your launcher and OS are updated, as older systems (e.g., macOS versions below 10.15) will lose support after March 2025[9].

Citations:

• 1: https://www.youtube.com/watch?v=VwDK24opZLo
• 2: https://www.pcgamesn.com/minecraft/next-update-release-date
• 3: https://feedback.minecraft.net/hc/en-us/sections/360001186971-Release-Changelogs
• 4: https://minecraft.wiki/w/Java_Edition_1.21.5
• 5: https://minecraft.wiki/w/Planned_versions
• 6: https://minecraftofficial.app/minecraft-java-edition-apk/
• 7: https://www.minecraft.net/en-us/article/new-year-new-testing-features
• 8: https://minecraft.wiki/w/Java_Edition_version_history
• 9: https://help.minecraft.net/hc/en-us/articles/30298767427597-Upcoming-OS-Sunset-Announcements-in-Minecraft
• 10: https://www.minecraftforum.net/forums/minecraft-java-edition/discussion/3212034-concerns-about-the-future-of-minecraft-with
• 11: https://www.minecraftforum.net/forums/minecraft-java-edition/discussion/3213366-minecraft-updates
• 12: https://www.minecraft.net/en-us/article/more-minecraft-game-drop-features
• 13: https://www.youtube.com/watch?v=SYO3RS_H2JM
• 14: https://www.minecraft.net/en-us/article/minecraft-live-is-back-2025

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Minecraft version check passed – the current version "1.21.4" is valid as of March 2025.

No changes are needed in the build.gradle.kts file.

chatformatter-core/src/test/java/com/eternalcode/formatter/legacy/LegacyTest.java (1)

53-61: Good test coverage addition!

This new test verifies the legacy hex color formatting used in plugins like HexNicks. It appropriately tests the conversion from the legacy format to Adventure's format.

chatformatter-core/src/main/java/com/eternalcode/formatter/legacy/Legacy.java (3)

22-22: Pattern for hex colors looks good

This new pattern will match hex colors in the format &x&c&c&d&d&7&7, which is used by some plugins.

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100-104: Nice implementation of hex color conversion

The code now handles the additional hex color format by extracting each hex digit and combining them into the standard format.

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99-109:

❓ Verification inconclusive

Verify color conversion is working as expected

The changes correctly support both hex formats, but it would be good to verify that they don't interfere with each other in complex strings.

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🏁 Script executed:

#!/bin/bash
# Find any other tests that might be affected by these changes
rg -l "Legacy.legacyToAdventure" --type java

Length of output: 206

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Color Conversion Verification

• The update in Legacy.legacyToAdventure now supports both hex formats.
• We found references in both LegacyTest.java and ChatHandlerImpl.java. Please double-check that the tests in LegacyTest.java include cases with complex strings (i.e., strings combining both formats) to ensure the conversions don't interfere with each other.

✨ Finishing Touches

• 📝 Generate Docstrings

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