Journey Mode v1.5.0 - Multi-Loader Architecture

Release Date: October 31, 2025

🏗️ Major Architectural Changes - Phase 2 Complete

Journey Mode has been completely restructured with a multi-loader architecture, setting the foundation for future Fabric and Forge ports!

Architecture Highlights

• ✅ 90/10 Split: 90% of code is now platform-agnostic, 10% loader-specific
• ✅ Common Module: Pure Java code with zero loader dependencies
• ✅ Platform Abstraction: Clean separation between game logic and platform APIs
• ✅ Service Loader Pattern: Automatic platform detection at runtime
• ✅ Future-Proof: Ready for Fabric and Forge ports in Phase 3

Project Structure

journey-mode/
├── common/                    # Platform-agnostic code (90%)
│   └── Core logic: JourneyData, ConfigHandler, ThresholdCalculator, UnlockLogic
├── neoforge-1.21.1/          # NeoForge-specific wrappers (10%)
│   └── Platform implementation, GUI, networking, events

🐛 Bug Fixes

Fixed: Deposit Slot Visibility in Journey Tab

• Problem: Deposit slot was visible and clickable in the Journey tab
• Solution: Created ConditionalSlot class with isActive() override
• Result: Slot is now properly hidden and disabled when Journey tab is active
• Impact: Prevents accidental item placement in wrong tab

Fixed: AttachmentType Serialization Error

• Problem: AttachmentType.Builder$1.buildException error on player data load
• Solution: Rewrote Codec using Codec.STRING.xmap() for proper JSON serialization
• Result: Player data now saves and loads correctly without errors
• Impact: No more crashes or data loss on player login

🎯 Benefits for Users

• Same Features: All functionality from v1.4.0 is preserved
• Better Stability: Fixed critical serialization and UI bugs
• Future Updates: Easier to add new features and support more loaders
• Cleaner Code: More maintainable and reliable

🔧 Technical Details

Common Module Components

• JourneyData.java - Pure Java data model with Gson serialization
• ConfigHandler.java - Platform-agnostic config management
• ThresholdCalculator.java - Recipe depth calculation logic
• UnlockLogic.java - Business logic for deposits and unlocks
• PlatformHelper.java - Platform abstraction interface

NeoForge Platform Components

• NeoForgeDataHandler.java - AttachmentType wrapper with fixed Codec
• NeoForgePlatformImpl.java - Platform implementation
• ConditionalSlot - Tab-aware slot with enable/disable logic

📦 Installation

Requirements

• Minecraft 1.21.1
• NeoForge 21.1.72 or later
• Java 21 or later

Steps

1. Download journeymode-1.5.0.jar from this release
2. Place in your .minecraft/mods folder
3. Launch Minecraft with NeoForge 1.21.1

⬆️ Upgrading from v1.4.0

• ✅ Drop-in replacement - No changes needed
• ✅ Config files - Fully compatible
• ✅ Player data - Automatically migrates
• ✅ All features - Work exactly as before

🚀 What's Next?

Phase 3: Multi-version support (Fabric and Forge ports)

• Fabric 1.21.1, 1.20.1, 1.19.2, 1.16.5
• Forge 1.20.1, 1.19.2, 1.16.5, 1.12.2
• NeoForge 1.20.1

The new architecture makes these ports much easier to implement!

📝 Full Changelog

Added

• Multi-loader architecture with common + platform modules
• ConditionalSlot class for tab-aware slot control
• Service loader pattern for platform detection
• Proper Gson-based serialization in common module

Fixed

• Deposit slot visibility in Journey tab (now properly hidden)
• AttachmentType Codec serialization errors
• Item slot interaction in wrong tab

Changed

• Project structure reorganized into multi-module Gradle project
• Core logic moved to platform-agnostic common module
• NeoForge-specific code isolated to platform module
• Codec implementation rewritten for reliability

Technical

• Build output: neoforge-1.21.1/build/libs/journeymode-1.5.0.jar
• Common module uses only Java + Gson dependencies
• Platform detection via META-INF/services/
• Cleaner separation of concerns

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Questions or issues? Report them on the GitHub Issues page!