Unity Integration Package

[toymak3r]

Overview

Create a comprehensive Unity integration package for Goethe that provides seamless integration with Unity's dialog system and game development workflow.

Background

Unity is one of the most popular game engines, and providing a native Unity integration will significantly expand Goethe's user base and adoption in the game development community.

Requirements

Unity Package Development

• Package Structure
  • Create Unity package structure following Unity conventions
  • Implement package manifest and dependencies
  • Add package documentation and examples
  • Create package installation scripts
• Core Integration
  • Implement C# wrapper for Goethe C++ library
  • Create Unity-specific dialog components
  • Add Unity event system integration
  • Implement Unity serialization support

Unity Components

• Dialog Manager Component
  • GoetheDialogManager MonoBehaviour
  • Dialog loading and management
  • Character system integration
  • Event system integration
• Dialog UI Components
  • GoetheDialogUI for dialog display
  • GoetheCharacterPortrait for character images
  • GoetheChoiceUI for choice selection
  • GoetheDialogTrigger for scene integration
• Editor Tools
  • Custom inspector for dialog components
  • Dialog preview in Scene view
  • Dialog validation in Editor
  • Dialog import/export tools

Unity-Specific Features

• Unity Event System
  • Integration with Unity Events
  • Custom events for dialog actions
  • Event-driven dialog flow
  • Unity Timeline integration
• Unity UI Integration
  • Native Unity UI components
  • TextMeshPro integration
  • UI animation support
  • Responsive UI design
• Unity Audio Integration
  • AudioSource integration for voice clips
  • Audio mixing and effects
  • Lip-sync support
  • Audio localization

Development Tools

• Unity Editor Extensions
  • Dialog editor window
  • Character management window
  • Dialog validation tools
  • Performance profiling tools
• Build System Integration
  • Dialog packaging for builds
  • Asset bundling integration
  • Platform-specific optimizations
  • Build validation

Technical Details

Unity Package Structure

GoetheUnity/
├── Runtime/
│   ├── Scripts/
│   │   ├── GoetheDialogManager.cs
│   │   ├── GoetheDialogUI.cs
│   │   ├── GoetheCharacterPortrait.cs
│   │   ├── GoetheChoiceUI.cs
│   │   └── GoetheDialogTrigger.cs
│   ├── Plugins/
│   │   ├── x86_64/
│   │   │   └── libgoethe.dll
│   │   └── x86_64/
│   │       └── libgoethe.so
│   └── Resources/
│       └── GoetheResources.asset
├── Editor/
│   ├── Scripts/
│   │   ├── GoetheDialogEditor.cs
│   │   ├── GoetheCharacterEditor.cs
│   │   └── GoetheValidationTools.cs
│   └── Windows/
│       ├── GoetheDialogWindow.cs
│       └── GoetheCharacterWindow.cs
├── Examples/
│   ├── Scenes/
│   │   ├── BasicDialogExample.unity
│   │   └── AdvancedDialogExample.unity
│   ├── Scripts/
│   │   └── ExampleDialogController.cs
│   └── Assets/
│       ├── DialogFiles/
│       └── CharacterPortraits/
├── Documentation/
│   ├── README.md
│   ├── GettingStarted.md
│   └── APIReference.md
└── package.json

C# API Design

// Main dialog manager
public class GoetheDialogManager : MonoBehaviour
{
    [Header("Dialog Settings")]
    public TextAsset dialogFile;
    public bool autoLoadOnStart = true;
    
    [Header("UI References")]
    public GoetheDialogUI dialogUI;
    public GoetheCharacterPortrait characterPortrait;
    
    [Header("Events")]
    public UnityEvent<DialogNode> onDialogStart;
    public UnityEvent<DialogNode> onDialogEnd;
    public UnityEvent<DialogChoice> onChoiceSelected;
    
    // Public methods
    public void LoadDialog(TextAsset dialogAsset);
    public void StartDialog(string nodeId);
    public void NextDialog();
    public void SelectChoice(int choiceIndex);
    public void SetVariable(string name, object value);
    public object GetVariable(string name);
}

// Dialog UI component
public class GoetheDialogUI : MonoBehaviour
{
    [Header("UI Elements")]
    public TextMeshProUGUI dialogText;
    public GameObject choiceContainer;
    public GameObject choiceButtonPrefab;
    
    [Header("Animation")]
    public float textSpeed = 30f;
    public AnimationCurve fadeCurve;
    
    // Public methods
    public void DisplayDialog(DialogNode node);
    public void DisplayChoices(List<DialogChoice> choices);
    public void ClearDialog();
    public void SetTextSpeed(float speed);
}

// Character portrait component
public class GoetheCharacterPortrait : MonoBehaviour
{
    [Header("Portrait Settings")]
    public Image portraitImage;
    public Animator portraitAnimator;
    
    [Header("Character Data")]
    public CharacterData characterData;
    
    // Public methods
    public void SetCharacter(string characterId);
    public void SetExpression(string expression);
    public void SetMood(string mood);
    public void PlayAnimation(string animationName);
}

Unity Integration Features

• PInvoke Integration: Native C++ library calls
• Coroutine Support: Asynchronous dialog operations
• ScriptableObjects: Dialog and character data storage
• Addressables: Asset management integration
• Input System: New Input System integration

Acceptance Criteria

• Unity package compiles and installs correctly
• Basic dialog functionality works in Unity
• UI components integrate with Unity UI system
• Editor tools function properly
• Examples demonstrate key features
• Documentation is complete and accurate
• Package follows Unity conventions

Priority

High - This is part of the medium-term roadmap and essential for Unity adoption.

Labels

• enhancement
• unity
• integration
• game-engine
• medium-term
• high-priority

Estimated Effort

• C# Wrapper: 3-4 weeks
• Unity Components: 4-5 weeks
• Editor Tools: 2-3 weeks
• Documentation: 2-3 weeks

Future Enhancements

• Unity Asset Store: Official Asset Store submission
• Advanced UI: Custom UI framework integration
• Performance Optimization: Unity-specific optimizations
• Mobile Support: Mobile-specific features and optimizations