2048 · kimi-k3.1-pro

I need create polished single html 2048. Should inspect dir.

Should implement. I can design elegant warm modern desktop/mobile. Board 4x4, animations FLIP via absolute tile elements transform; easiest model tiles objects id val row col merged flag. Movement animation use requestAnimationFrame transition transform and z index. Rapid input locked 150ms queue last perhaps. Should support keyboard and swipe optional. Game logic robust. Initial two random tiles. Tiles all absolute; CSS positions with calc using gap and board size. Could use CSS custom --x --y transform translate with JS computing cell via board dimensions? Use percent transform: tile width calc((100%-45px)/4), left:0 top:0; transform translate(calc(var(--c)*(100% + 12px)), ...). Percent in translate refers own width, adding px works. CSS --gap 12. Board inner padding 12; board size clamp; actual board content dimensions; tiles absolute top 12 left12. .tile transform translate(calc(var(--col)*(100% + 12px)), calc(var(--row)*(100% + 12px))). CSS width calc((100% - 60px)/4) because board full content? absolute percentage width relative padding box? Position containing block padding box. Simpler JS CSS grid cells background, tile style left `${c*25}%` top etc width25 and padding? Use inner board .tile-layer inset 12, width calc board-24; .tile width calc((100% - 36px)/4), transform. Yes absolute containing block tile-layer content. fine.

Rendering maintain tile map id DOM. On move create new grid and animations. Model board tiles. For each line create list and targets, merges pair. To animate both source tiles to same dest then remove consumed and update survivor value after transition. IDs. Build resulting tile array with surviving tile val doubled and consumed marked. Spawn after movement completes perhaps at 130ms. Lock inputs during 160 ms. Game status check after spawn. Win once. continue. New game during anim reset cancel via generation. Could simplify render rebuild all after each move but movement animation need source existing. I can have persistent DOM keyed. On move, calculate moves with source ids, survivor. Update transforms all moved. At transition end remove consumed, update survivor text/class and pop, spawn new. During animation board model already result, lock. New game generation handles timers.

Should aria status etc. Score animated bump. Best optional localStorage but network none. Requirement only score. Add new game and how to play. Win overlay only with keep going/new game. Game over overlay. Ensure "Game Over only when no valid move remains" no overlay else. Overlay could initially hidden. On win at 2048. Continue hides. On game over overlay. Allow continuing after win means no future win overlay, state won true.

Should test sequence via browser and perhaps expose game debug? Don't expose. Can inspect DOM. I can test key and counts scores. Random uncertain but observe.

Write file.

Should verify.

Image no tiles though DOM has 2 2. Why? animation screenshot immediate at 0ms tiles scale 0 perhaps screenshot frame immediate. Now wait via motion or inspect.

Looks good. Should test move Up merges +4 and spawn exactly one (3 tiles). Key.

At immediate. Should wait motion.

Correct. Test invalid up no spawn. key up wait motion count 2.

Should have more short sequence ArrowLeft should no change, right changes and spawn. down. new game.

Screenshot movement. Wait then down.

Now key down and new game.

Perhaps wait; I can click new after 145 not yet if immediate, new handles token fine.

Should potential logic bug movements for b in nonmerge? when a & b merge, pushes both. if nonmerge only a and next loop b processed. fine. changed detection when b merge yes. consumed includes b, b not in result. Great.

Potential rapid input corruption: locked prevents. Fine.

But key while win overlay open returns and prevents arrow page. Good.

Game over only no moves after spawn. hasMoves uses at current. fine.

Should verify specific merging 2 2 2 2 perhaps via static logic manually not browser. Could use code algorithm no need. Perhaps ensure on game after new immediate two visible after motion. done previous.

Could respond concise. User requested verify short sequence yes. I should mention checked and unverified win/gameover. No need more tools.