- Asset data is normalized to schema 2+ compatible shape.
- Dynamic left-facing pixels are not stored; `faces.left` is represented as `mirror`.
- Empty depth/light metadata is omitted or normalized.
- Editor tools include Draw, Erase, Fill, Pick, Undo, and Redo.
## Phase 2 changes
- Local save uses a compact Phase 2 envelope in `localStorage`.
- Pixel planes are bbox-cropped and RLE-compressed when this is smaller than raw cropped data.
- Compact asset bundles can be exported separately from world snapshots.
- World snapshots contain placements, dynamic summons, and an asset manifest rather than full asset blobs.
- Local object/asset mutations append small sync events to `eventLog`.
- IndexedDB asset/snapshot cache helpers are included for future server-backed missing-asset fetches.
## Phase 3 changes
- Terrain rendering is chunk-cached instead of using one large terrain canvas.
- Only terrain chunks intersecting the current viewport are drawn.
- Static and dynamic objects outside the viewport margin are culled before sprite generation/sorting.
- Dynamic runtime updates are stepped at 15 Hz and capped per frame to avoid spiral-of-death on slow devices.
- Rendering pauses while the browser tab is hidden and resumes on visibility change.
- Tile/object lookups use a small spatial index for inspect, erase, and nearby-target searches.
- Data tab reports visible terrain chunks for quick performance inspection.
## Phase 4 changes
- Editor schema is now 5.
- Added Line and Rect tools. Rect supports filled rectangles with Shift; right-click erases line/rect cells.
- Added Select tool. Drag to select a rectangular area, then drag the selection or use arrow keys/buttons to move it.
- Nudge buttons move the active selection; without a selection they shift the whole drawing.
- Added horizontal/vertical flip, palette-colored outline generation, and clear selection.
- Added editor PNG export/import. PNG import quantizes the image to the current island palette and current canvas size.
- Added keyboard shortcuts: B/E/F/I/L/R/S for tools, Ctrl/Cmd+Z/Y for history, arrows for moving selected pixels, Escape to clear selection.
## Export formats
- **Export full JSON**: human-readable full local state.
- **Export compact**: compact local state suitable for saving/transferring.
- **Export snapshot**: placement state plus asset manifest; requires asset bundles or cache to render fully.
- **Export asset bundle**: compact asset blob list for missing-asset transfer.
## Phase 4 follow-up adjustments
- PNG import now chooses the editor canvas size from the image size. Square 8/16/32/64 PNGs import at their native size; other sizes are fit into the nearest supported square canvas.
- Depth is now three-state: high, normal, and low. High brightens sprite pixels; low darkens them.
- Right-clicking the world canvas clears the current map selection instead of moving or placing the selected asset.
- Dynamic sprites now pause intermittently instead of walking continuously.
- Night rendering is darker.
- Object picking now uses sprite-sized, per-opaque-pixel hit testing, so transparent pixels are not clickable.
- The CSS font stack now tries `3x5 MT Pixel Font` first. The font file itself is not bundled.
- Fixed the Advanced Draw depth controls so `Depth / High / Low / Clear` wrap inside the drawer instead of overflowing to the right.
- Added Phase 5 guardrails in the Data tab:
- local asset/object volume counters,
- duplicate-content count,
- orphan placement checks,
- terrain compatibility checks,
- hidden/report counters.
- Added `Validate world` export for pre-server integrity checks.
- Added local object reporting from the selection bubble. Reported objects are hidden locally and stored in a local moderation report log.
- Added `Export moderation report` for review/debug data.
- Added `Clear reports` to clear local report logs without un-hiding already hidden objects.
- Added soft local guardrail limits: 160 assets and 220 world objects. Existing objects can still be moved; new saves/placements are blocked when the local cap is reached.
## Phase 5 follow-up changes
- Static sprites now anchor closer to the center of their tile instead of the front corner.
- Object selection is pixel-accurate: transparent sprite cells no longer select the object, and tile inspection does not select hidden/transparent areas.
- Right-clicking the map clears selection silently.
- Hidden panel now lists both hidden library assets and hidden map objects. Objects hidden by Report appear there and can be restored with Show again.
- Report now opens a reason dialog with Cancel and Report + Hide actions.
- Library cards include Place/Move, which makes dynamic human assets easier to reposition.
- Default bundled pixel art was replaced with a new set: Hill Cottage, Pine Cluster, Shell Rock, Wave Skiff, Fisher Kid, Moss Cat, Koi Fish, and Cloud Gull.
- Added a static Ship role/subtype. Ships can be placed on water, float subtly, and periodically emit ring ripples.
- Local storage key was bumped to load the new default set in this prototype build.
## Phase 5 polish
- Night lights now draw after the darkness overlay and use fixed bright cores/halos, so lamp pixels visually ignore the night darkening pass.
- The sky color now transitions quickly around dawn and dusk. Day and night remain mostly stable instead of drifting continuously.
## Phase 5 Effects
- Nearby objects receive a faint surface glow from adjacent light sources.
- Light cores are less dazzling, while night ambient darkness is lifted slightly.
- Land-moving dynamic sprites emit small terrain-colored step particles.
## Visual FX follow-up
- Step particles now vary in hue / saturation / lightness around the terrain color.
