# Changelog

All notable changes to this project will be documented here.
Format follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).

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## [Unreleased]

### Performance
- **Event-queue timers** (Issue #36): crops, tree seedlings, and tile-recovery events now use a sorted priority queue with absolute `gameTime` timestamps instead of per-frame countdown iteration — O(due items) per tick instead of O(total items); `WorldState.gameTime` tracks the in-game clock; save migrated from v5 to v6

### Added
- **Action log in F3 debug panel** (Issue #37): last 15 actions dispatched through the adapter are shown in the F3 overlay under "Last Actions"; ring buffer maintained in `LocalAdapter`

### Fixed
- **Y-based depth sorting** (Issue #31): trees, rocks, seedlings and buildings now use `tileY + 5` as depth instead of fixed values — objects lower on screen always render in front of objects above them, regardless of spawn order; build ghost moved to depth 1000
- **Nisse always visible** (Issue #33): Nisse sprites fixed at depth 900, always rendered above world objects

### Added
- **Försterkreislauf** (Issue #25):
  - **Setzlinge beim Fällen**: Jeder gefällte Baum gibt 1–2 `tree_seed` in den Stockpile
  - **Försterhaus** (`forester_hut`): Neues Gebäude im Build-Menü (Kosten: 50 wood); Log-Hütten-Grafik mit Baum-Symbol; Klick auf das Haus öffnet ein Info-Panel
  - **Zonenmarkierung**: Im Info-Panel öffnet „Edit Zone" den Zonen-Editor; innerhalb eines Radius von 5 Tiles können Tiles per Klick zur Pflanzzone hinzugefügt oder entfernt werden; markierte Tiles werden als halbtransparente grüne Fläche im Spiel angezeigt; Zone wird im Save gespeichert
  - **Förster-Job** (`forester`): Nisse mit `forester`-Priorität > 0 pflanzen automatisch `tree_seed` auf leeren Zonen-Tiles; erfordert `tree_seed` im Stockpile
  - **Chop-Priorisierung**: Beim Fällen werden Bäume innerhalb von Förster-Zonen bevorzugt; natürliche Bäume werden erst gefällt wenn keine Zonen-Bäume mehr vorhanden sind
  - Nisse-Info-Panel und Nisse-Panel (V) zeigen jetzt auch die `forester`-Priorität als Schaltfläche

### Fixed
- **Nisse idle loop** (Issue #22): Nisse no longer retry unreachable trees/rocks in an infinite 1.5 s loop — `pickJob` now skips resources with no adjacent passable tile via `hasAdjacentPassable()`; pathfind-fail cooldown raised to 4 s
- **Resource-based passability** (Issue #22): FOREST and ROCK terrain tiles are only impassable when a tree/rock resource occupies them — empty forest floor and rocky ground are now walkable; `WorldSystem` maintains an O(1) `resourceTiles` index kept in sync at runtime
- **Terrain canvas not updating** (Issue #22): `CHANGE_TILE` now calls `refreshTerrainTile()` centrally via the adapter handler, fixing the visual glitch where chopped trees left a dark FOREST-coloured pixel instead of DARK_GRASS
- **Stockpile panel** (Issue #20): panel background now uses `uiOpacity` and updates live when Settings opacity changes; panel height increased so the Nisse count row no longer overlaps the carrot row
- **ESC menu** (Issue #20): internal bottom padding corrected — last button now has 16px gap to panel edge instead of 0px

### Added
- **Overlay Opacity Setting** (Issue #16): all UI overlay backgrounds (build menu, villager panel, context menu, ESC menu, confirm dialog, Nisse info panel, debug panel) now use a central `uiOpacity` value instead of hardcoded alphas
- **Settings Screen**: ESC menu → Settings now opens a real overlay with an overlay-opacity row (− / value% / + step buttons, range 40 %–100 %, default 80 %); setting persisted in `localStorage` under `tg_ui_settings`, separate from game save so New Game does not wipe it

### Added
- **Unified Tile System** (Issue #14):
  - Tree seedlings: player plants `tree_seed` on grass/dark-grass via the F-key farming tool; seedling grows through two stages (sprout → sapling → young tree, ~1 min each); on maturity it becomes a FOREST tile with a harvestable tree resource
  - Tile recovery: when a Nisse chops a tree, the resulting DARK_GRASS tile starts a 5-minute recovery timer and reverts to GRASS automatically, with the terrain canvas updated in real time
  - Three new procedural seedling textures (`seedling_0/1/2`) generated in BootScene
  - `tree_seed` added to stockpile display (default 5 at game start) and to the farming tool cycle
  - `WorldSystem.refreshTerrainTile()` updates the terrain canvas for a single tile without regenerating the full background
  - New `TreeSeedlingSystem` manages seedling sprites, growth ticking, and maturation

### Added
- **Nisse Info Panel** (Issue #9): clicking a Nisse opens a top-left panel with name, AI status, energy bar, active job, job priority buttons, and a live work log (last 10 of 20 runtime entries); closes with ESC, ✕ button, or by clicking another Nisse
- Work log tracks: walking to job, hauling to stockpile, going to sleep, waking up, chopped/mined/farmed results, deposited at stockpile
- **ESC Menu** (Issue #7): pressing ESC when no overlay is open shows a pause menu with Save Game, Load Game, Settings (placeholder), and New Game; New Game requires confirmation before wiping the save
- ESC key now follows a priority stack: confirmation dialog → context menu → build menu → villager panel → Nisse info panel → ESC menu → (build/farm mode handled by their systems) → open ESC menu

### Added
- **F3 Debug View**: toggleable overlay showing FPS, tile type and contents under the cursor, Nisse count by AI state, active jobs by type, and pathfinding visualization (cyan lines in world space)

### Fixed
- Nisse now clear the FOREST/ROCK tile after harvesting, opening paths to deeper resources
- Nisse no longer get stuck idle after depositing items at the stockpile
- Working Nisse now reset to idle on game load (like walking ones), preventing stale AI state
- Stale jobs with empty carry are now cleared after work completes, avoiding a false "haul to stockpile" loop
- UI elements (stockpile panel, controls hint) now reposition correctly after window resize
- Centered overlay panels (build menu, villager panel) close on resize so they reopen at the correct position
- Mouse world coordinates now use `ptr.worldX`/`ptr.worldY` in BuildingSystem and FarmingSystem, fixing misalignment after resize or zoom

### Changed
- Villagers are now called **Nisse** throughout the UI (panel, controls hint, stockpile display, context menu, spawn message)

### Added
- Scroll wheel zooms toward the mouse cursor position (zoom-to-mouse), correctly accounting for Phaser's center-based zoom model
- Middle mouse button held: pan the camera by dragging
- Test environment at `/test.html` with `ZoomTestScene` (Phaser default) and `ZoomMouseScene` (zoom-to-mouse) for camera behaviour analysis; file-logging via Vite middleware to `game-test.log`

### Fixed
- `getCenterWorld()` in `CameraSystem` returned wrong world coordinates at zoom ≠ 1; corrected from `scrollX + width/(2·zoom)` to `scrollX + width/2`
- Right-click context menu: suppresses browser default, shows Build and Nisse actions in the game world
- Initial project setup: Phaser 3 + TypeScript + Vite
- Core scenes: `BootScene`, `GameScene`, `UIScene`
- Systems: `BuildingSystem`, `CameraSystem`, `FarmingSystem`, `PlayerSystem`,
  `ResourceSystem`, `VillagerSystem`, `WorldSystem`
- Utilities: simplex-noise wrapper, pathfinding
- `StateManager` for central game state
- `NetworkAdapter` for multiplayer/sync layer

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