- Add japanese-themed city sprite sheet (PNG + PSD) and register in artwork config
- Switch several opponents to cyberpunk or japanese city themes
- Fix hut badge stale display by including tile coordinates in hut events and
repainting affected tiles immediately via repaintFromEvents
- Replace diagonal lattice world generation with hash-based jittered grid:
* Shield grassland now uses balanced 2x2 blocks hashed per position to remove
visible screen-space banding while preserving 50% density
* Special resources placed on jittered blocks with adjacency avoidance,
eliminating clumping and barren regions
- Update sprites.md paths and status markers to reflect completed sheets
- Expand verifyCivilization checks for shield density range and special placement
quality (no adjacency, balanced windows, no screen-column alignment)
- Update Tetris Attack dialogue with control instructions and typo fixes
Refactor Stage Clear narrative from battling opponents to helping friends.
Update character poses: friends cheer on clears and fret during danger.
Implement multi-line intro cutscenes with step-by-step progression and random background art.
Switch dialog to randomized arrays (introLines, winLines, loseLines).
Add new sound effects for Beth and Jerry.
Update validation and documentation to match new data structure.
- Implement staggered tile pop animation: face overlay flashes on each tile,
then shatters into four quadrants that fly diagonally while shrinking/fading
- Play 8-bit card sound per tile, 8-bit action/win sounds for 4+/5+ tile clears
- Adjust character speed levels in tetrisattack.json (Jerry-1, Michael-2,
Steve-2, Victor-3, Klaxon-4)
- Replace cursor movement SFX with click sound
- Update advancewars-units and tetrisattack-panels sprite sheets and PSDs
- Add sfx-click and sfx-casino-win-8bit to preload and sound registry
Restructure Tetris Attack Stage Clear from "clear all target panels" to a
multi-stage round system with a sliding boundary line.
Gameplay changes:
- Each character now has 5 stages instead of a single match
- A CLEAR line appears after a set number of rows rise, then rides the
stack upward; the objective is to clear everything above it
- Clearing a stage advances to the next: same board, faster speed, fresh line
- Stage progress is saved to localStorage; characters unlock sequentially
- Added a stage select screen with progress squares per character
Logic changes:
- Replaced `targetsTotal` with `clearLine` tracking and `countAboveLine`
- Added `advanceStage()` to resume play on the same stack one speed level higher
- Win condition now checks `countAboveLine() === 0` instead of target count
- Removed `target` flag from panels; panels below the line are irrelevant
- Continuous speed ramp via fractional `speed` per stage
UI changes:
- Clear line drawn as a pulsing bar with "◀ CLEAR" label outside the board
- "CLEAR LINE!" announcement on appearance, "STAGE N CLEAR!" banner on win
- HUD shows stage number instead of panel count
- Game over offers "Retry Stage", "Stage Select", or "Menu"
Asset changes:
- Backgrounds renamed to `background-{hero}-r{stage}.png` (5 per character)
- Lazy-load backgrounds per round instead of preloading all 30 images
- Updated tetrisattack.json with `stagesPerRound`, `stageSpeedStep`, and
per-character `clearLineRows`
Tests:
- Rewrote stage clear soak tests for the new mechanic
- Added stage round progression, speed ramp, and board preservation tests
Implement the full Tetris Attack clone with three game modes:
- Endless: clear panels as the stack rises, speed increases with levels
- Stage Clear: defeat 6 character opponents (Beth, Jerry, Michael, Steve, Victor, Klaxon) in sequence
- Puzzle: solve 24 pre-vetted puzzles within move limits
Core engine (src/games/tetrisattack/TetrisAttackLogic.js) is a pure, deterministic
state machine with match detection, chain propagation, gravity, and scoring tables
matching the SNES original. Includes a headless verifier (verifyTetrisAttack.js)
testing match detection, chains, gravity invariants, top-out, puzzle solvability,
and seeded determinism.
Art is fully optional via drop-in spritesheets (spec: sprites.md); procedural
fallbacks draw 16-bit-style panel icons with distinct shapes for colorblind access.
Puzzle bank generated by genTetrisAttackPuzzles.js and verified as solvable within
optimal move counts.
Shared nintendo soundtrack reused via soundtrack overrides.
Brian Fertig