Backport of ChatCalc to NeoForge / Minecraft 1.21.1.

• Supported Minecraft: 1.21.1 only.
• Key fixes:
  • Mixin input-signature backport (avoids KeyEvent).
  • Click/Hover event compatibility restored for older mappings.
  • Tooltip fallback for EditBox (Reflection-based).
• Built and dev-client tested on NeoForge 21.1.215.

[1.0.0] - 2025-11-10

Added - Initial NeoForge Port

• Complete port of ChatCalc from Fabric 1.20.2 to NeoForge 1.21.10
• All mathematical calculation features from original mod
• In-chat calculations with TAB key
• Live preview tooltip above chat input
• Custom function and constant definitions
• Click-to-copy functionality for functions and constants
• Hover tooltips on function/constant listings
• Configuration file support (chatcal.json)
• All mathematical operations: basic arithmetic, trigonometry, logarithms, etc.
• Summation and product operators
• Test cases command for verification

Changed - API Adaptations

• Updated from Fabric API to NeoForge API
• Changed package structure from ca.rttv.chatcalc to de.smallinger.chatcal
• Updated Mixin injections for Minecraft 1.21.10
• Adapted key event handling from primitive parameters to KeyEvent objects
• Changed chat message API from sendSystemMessage to displayClientMessage
• Updated ClickEvent and HoverEvent to use new interface-based implementations
• Changed tooltip rendering from drawTooltip to setTooltipForNextFrame
• Updated EditBox rendering from renderButton to renderWidget

Technical Details

• Minecraft Version: 1.21.10
• NeoForge Version: 21.10.49-beta
• Java Version: 21
• Gradle Version: 9.2.0
• Mappings: Parchment 2025.10.12

Documentation

• Added comprehensive README.md with usage instructions
• Created DEVELOPMENT.md with porting notes and API changes
• Added NOTICE.md with copyright and attribution information
• Added MPL 2.0 license headers to all source files
• Added this CHANGELOG.md

Credits

• Original ChatCalc Mod by RealRTTV
• NeoForge Port by Smallinger

[Unreleased]

Planned Features

• Configuration GUI
• Additional mathematical functions
• Localization support for multiple languages
• Performance optimizations for complex expressions

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Version History

Fabric Original (Reference)

• Version: 1.20.2
• Author: RealRTTV
• Repository: https://github.com/RealRTTV/chatcalc

NeoForge Port

• First Release: 1.0.0 (2025-11-10)
• Platform: NeoForge
• Minecraft: 1.21.10