Tetris · kimi-k3.1-pro

I need build index self-contained Tetris. Should inspect current dir. Should use tools. Should plan quality. Time 15m. Should browser verify. Perhaps use canvas crisp UI. I'll create game fully. Should include all 7 spawn positions legal. Standard SRS shape coords or matrices. Should have controls visible. Pause button etc. Next preview. Game over. Keyboard. Scoring proper. Gravity increasing every ten lines. State resets piece sequence state deterministic or random reset? "piece sequence state" likely next reset. Use 7-bag random reset. Should first piece verification browser. Could expose not necessary. I can inspect DOM canvas etc screenshots. Build.

Now see files.

I'll write the file. Think design. Canvas board width 300 height600 if cell30. Surround sidebar next and stats. Responsive with overall 760x perhaps. Background dark navy, board canvas high DPI. Draw grid, pieces with gradients? No external. Provide visually polished.

Game states: COLS=10 ROWS=20 CELL=30. shapes use matrices:
I [[0,0,0,0],[1,1,1,1],[0..],[0..]], J 3x3 [1,0,0],[1,1,1],[0,0,0], L [0,0,1],[1,1,1],[0,0,0], O 2x2 or 4x4 standard. S [0,1,1],[1,1,0], T [0,1,0],[1,1,1], Z [1,1,0],[0,1,1]. legal spawn x floor((10-width)/2), y perhaps 0; I has top empty, piece visible y1. Standard could y=-1 but legal board collision allows y<0. Requirement visible board 20 rows. Spawn at y=0 all shapes. O 2x2 x4. I 4x4 x3. 3x3 x3 or4? floor(7/2)=3. Good.

Rotation clockwise matrix, preserve x y and reject collision; O unchanged. Collision if x<0 etc y>=ROWS or occupied y>=0. Allow y<0 though not used. Lock loops occupied y>=0. spawn game over if collides. Hard drop increments y until collision, perhaps +2 per dropped cell optional unspecified avoid bonus or okay. Soft drop perhaps +1 per cell but scoring could confuse restart no issue. Required only line scoring. Better soft drop no points, hard no points. lock immediately. Down repeat on keydown naturally. Gravity using requestAnimationFrame and dropCounter. pause stops updates. Keys prevent default only gameplay keys; when game over space etc no. Pause via P and button. Restart button and R perhaps controls. Buttons clickable.

Drop interval max(80, 800 * Math.pow(0.82, level-1)) or level speed. Every ten lines level=Math.floor(lines/10)+1. Display level. line clear scoring base indexed * level prior current? Current level before lines; then lines increase then level. yes.

State statuses text. next-piece preview separate canvas. Piece queue bag. restart reset bag, queue, random perhaps Date? Bag fresh. Should next preview advances: current drawn from next, then refill. initial bag shuffled, next=draw; spawn=next then next=draw. restart fully reset. Could perhaps repeated random order fine. "piece sequence state" reset means clear bag next.

Game over shows overlay within canvas. Pause overlay. On blur auto pause? Good optional but might complicate browser verification; don't auto pause unless not needed.

Accessible aria live status. Buttons. Keyboard focus no issue space on button could trigger restart etc if focused. Global handler if Space prevent and hardDrop even focus button. Buttons pause etc. Better ignore keyboard when e.target button for Space? Verification keyboard with canvas click perhaps. I can use window keydown and button no focus issue after clicking pause then space would hard drop rather than resume, okay. Buttons handle clicks.

Canvas render animations request frame continuous. Should avoid browser tool key names? key action text perhaps "ArrowLeft" likely.

I'll create index.

Should inspect browser initial console.

Interesting CSS actual board shell 300 but canvas width288 height576 distorts grid CELL30? Canvas internal 300x600 CSS 288x576 uniform .96 okay shell content 288. good.

Now verify move rotate first then hard drop locks next preview advances. Use screenshot before current T next O. key ArrowLeft, ArrowUp then Space.

Wait after ArrowLeft screenshot piece around y11! Browser action may take seconds and gravity moving many rows; okay. Now rotate.

Oops between actions huge time first piece auto locked and next O. Rotation on O no visible change. Verification requested move rotate first then hard drop but tool latency means need pause? Could restart then keys rapidly impossible tool overhead ~? Each tool might 5 sec enough gravity. I can still test rotate new T by restart then immediate rotate perhaps action overhead screenshot appears after several seconds. Could use key P quickly? Not essential. I saw initial T, left movement then eventually locked. Next preview advanced. Hard drop current O now.

Good. Pause resume restart.

Resume seems okay current I same y9 from pause. Restart click.

Should check logic thoroughly. Potential serious: if game over spawn current=null updateUI, frame canPlay false draw overlay. good.

Level scoring. Line clear algorithm correct.

Spawn sequence uses bag pop all seven. yes.

Move rotation reject bounds. yes.

First piece test rotate wasn't clear due delays but code straightforward. Could test by restart pause then resume rotate? Still time. Could use browser key immediate screenshot current S at spawn after restart and Up rotation.

Good rotation verified. Perhaps hard drop and restart final to clean board for final.

Again latency means T fell stacked; S locked visible. next preview O, new L. fine. Perhaps final restart.

Should respond concisely mentioning created checks and unverified line clears/game over level since not played. But before responding, perhaps code review reveals accessibility disabled button styling not matter. A requirement says score, lines level next. yes.

Potential bug on page initial 300x600 board canvas CSS board shell content 288x576, ratio okay. Responsive .board-shell aspect ratio and canvas height 100% inside padding with border-box global might calculate content weird but okay.

Could test row clear with automated console not available. Browser only no eval. Could use JS unit via Node extract functions with mocked DOM but unnecessary. Should have no further.

I should state no console errors. Remaining unverified line scoring level progression and game-over via actual play. Response should include path and checks.