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Estella

v0.5.0

Prefab System

  • Added .esprefab file format with serializer and validator
  • Save entity trees as prefab from hierarchy context menu or drag to content browser
  • Instantiate prefabs by dragging from content browser to hierarchy
  • Per-property override tracking with visual indicators in inspector
  • Support Apply (push overrides to prefab source) and Revert (restore defaults)
  • Support Unpack to remove prefab association
  • Double-click .esprefab files to enter prefab edit mode
  • Clickable prefab path in inspector to navigate to source file
  • Support nested prefab references and recursive instantiation
  • Added PrefabServer and prefabsPlugin for runtime prefab loading and instantiation
  • Added runtime prefab loading API (loadPrefab, instantiatePrefab)
  • Build pipeline auto-collects prefab paths and converts UUID references

TextInput Component

  • Added TextInput component and textInputPlugin plugin
  • Cursor positioning, arrow key navigation, text selection
  • Placeholder rendering and visual styling in editor
  • UIMask clipping support enabled
  • Fixed arrow key cursor position and keydown event handling

Unified Asset Type Registry

  • Added sdk/src/assetTypes.ts as single source of truth for file format definitions
  • Covers MIME types, WeChat pack options, and transitive dependency flags
  • Migrated 22 files across SDK, editor panels, builders, and runtime loaders
  • Replaces all hardcoded file extension checks

Modular SDK Architecture

  • Added unified component registry (registerComponent / getComponent) replacing hardcoded switch in scene.ts
  • defineBuiltin auto-registers components, eliminating manual registration
  • createWebApp plugins configurable via WebAppOptions.plugins
  • UI plugins extracted to uiPlugins.ts, default-injected via webAppFactory.ts
  • Physics components decoupled from core imports (type-only in component.ts)
  • Each plugin self-registers its components in build()
  • App.addPlugin idempotency protection (installed_plugins_ Set)
  • Playable builds now use esbuild tree-shaking

Spine Multi-Texture Batching

  • Renderer supports multi-texture batching for Spine multi-atlas setups
  • Added spineRenderer and maskProcessor getters to RenderPipeline
  • Fixed glBlendFuncSeparate for correct Spine multi-atlas alpha blending
  • Added glBlendFuncSeparate to GLAD loader for Linux builds

Editor UX Improvements

  • Virtual scrolling in hierarchy panel for large entity lists
  • Improved drag-and-drop experience with reduced DOM updates during drag-over
  • Added entity copy/paste menu items
  • Support drag-and-drop files from OS into content browser
  • Reorganized hierarchy context menu into grouped submenus
  • Added hex color text input to color editors
  • Display current scene name in menu bar
  • Added scene stats overlay with draw call and render statistics
  • Auto-update preview files on scene save for F5 refresh
  • Restore last opened scene per project on startup
  • Auto-open scene after creation in content browser
  • Move/Scale gizmo supports dragging entity by clicking within its bounds

Addressable Asset System

  • Added Addressable Groups as draggable floating window panel
  • Generate v2.0 addressable manifest with groups, labels, and metadata
  • Unified addressable asset loading API with typed results
  • Prefab asset refs converted during build (UUID to path)

Build Pipeline Improvements

  • Unified esbuild initialization into single shared function, eliminating 3 duplicate code paths
  • ArtifactBuilder resolves scene UUIDs to file paths after build
  • Cache scene data to avoid double disk read
  • Pass pre-collected assets to MaterialCompiler
  • Parallel WASM compilation by buildDir groups
  • MaterialLoader uses AsyncCache, physics gets own buildDir
  • Removed 440+ lines of duplicate code

2D Engine Defaults and Constants

  • Camera defaults changed for 2D: orthographic projection, orthoSize=540
  • Fixed Camera projectionType labels swapped in editor inspector
  • Added ProjectionType, ClearFlags, ScaleMode enums replacing magic numbers
  • Extracted shared constants (design resolution, PPU, canvas size) to sdk/src/defaults.ts
  • Text component default alignment changed to center

WeChat MiniGame Fixes

  • Fixed touch coordinates not DPR-adjusted
  • Added multi-touch support
  • Fixed offscreen canvas memory leak
  • Converted game.js from sync to async file reads
  • Fixed manifest resolvePath() with path-based index in addition to UUID
  • Included spine .atlas files in addressable manifest

Playable Ads Improvements

  • CTA button now optional (disabled by default), settings exposed in build dialog
  • Fixed embedded asset loading and packaging
  • Added MRAID CTA integration to Playable Ads template
  • PlayableEmitter now respects export config instead of including all assets

Runtime Stability

  • Added try/catch error boundary per system in runSchedule — single system crash no longer kills game loop
  • Fixed component shallow copy bug with deep clone for nested defaults (Vec3, Color)
  • Cache World-to-C++ method references to eliminate per-call string concatenation
  • Delta time clamped to 250ms max to prevent physics explosion after tab switch
  • Fixed timestep capped to 8 iterations per frame to prevent spiral of death
  • quit() properly cleans up: try/catch each shutdown, despawn entities, null refs
  • Query iterator returns array copy to prevent shared-reference data corruption
  • AsyncCache tracks aborted flag to prevent timed-out loads from leaking into cache
  • releaseAll() clears pending loads and releases materials
  • Scene data cloned before preloadSceneAssets mutates it (enables scene reload)
  • Optimized per-frame allocations: reuse command buffers, pool ResMutInstance, static multiply buffer
  • Eliminated duplicate collectCameras call in render system

Other Improvements

  • Added BitmapFont.measureText API for precise editor bounds
  • Added entity visibility support to runtime scene loading
  • Split WorldTransform initialization from hierarchy update
  • Removed user-facing dirty flag from Text component
  • Sprite size reset button always visible
  • Added RenameEntityCommand and ToggleVisibilityCommand for undo support
  • Fixed Sprite size sync with UIRect when resizing UI elements
  • Fixed derived property sync on undo/redo for UIRect and Sprite
  • Text component changes sync immediately in editor
  • Replaced manual component mapping with World + loadComponent in EditorBridge
  • Replaced hand-written CppRegistry with generated types, eliminating type casts
  • SSE live reload for preview system
  • Added -fno-rtti to WASM compile flags
  • Fixed INVALID_FONT sentinel and added UTF-8 decoding for BitmapText
  • Fixed settings dialog number input values not saving on close
  • Fixed dialogs closing when clicking overlay background
  • Blocked browser context menu, added Reload/DevTools to View menu
  • Fixed redundant texture preview updates and race conditions
  • Fixed INVALID_TEXTURE display in texture property editor
  • Preview plugin error reporting with step context and stack traces
  • Prevented concurrent refresh and validated prefab save directory
  • Prevented orphaned entities and improved scene manager robustness