Tetris · muse-spark-1.3
Output generated Cost / run $0.1712 Runtime 143.7s
Prompt for this run
Build a playable falling-block Tetris game on a canvas with a 10-column, 20-row visible board. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Include all seven tetrominoes with legal spawn positions. Use Left/Right to move, Up to rotate clockwise, Down to soft-drop, and Space to hard-drop. Show the controls. - Reject moves and rotations that overlap occupied cells or leave the board. Wall kicks are optional; if unsupported, reject the blocked rotation without changing the piece. - Lock landed pieces, clear complete rows, move rows above downward, and spawn the next piece. Display score, cleared-line count, level, and a next-piece preview. - Award 100, 300, 500, or 800 points for clearing one, two, three, or four rows with one piece, multiplied by the current level. Start at level 1 and increase gravity speed every ten cleared lines. - If a new piece cannot spawn, show Game Over. Provide Pause/Resume and Restart, with restart resetting the board, score, level, and piece sequence state. Hold and ghost pieces are optional. Verify: Move and rotate the first piece, then hard-drop it. Check that it locks into the board, a new piece spawns, and the next-piece preview advances. Pause and resume, then use Restart and check the cleared board, score, and level.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
METRICS
Transcript · 35 messages
Build a playable falling-block Tetris game on a canvas with a 10-column, 20-row visible board. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. No third-party libraries are provided. Required behavior: - Include all seven tetrominoes with legal spawn positions. Use Left/Right to move, Up to rotate clockwise, Down to soft-drop, and Space to hard-drop. Show the controls. - Reject moves and rotations that overlap occupied cells or leave the board. Wall kicks are optional; if unsupported, reject the blocked rotation without changing the piece. - Lock landed pieces, clear complete rows, move rows above downward, and spawn the next piece. Display score, cleared-line count, level, and a next-piece preview. - Award 100, 300, 500, or 800 points for clearing one, two, three, or four rows with one piece, multiplied by the current level. Start at level 1 and increase gravity speed every ten cleared lines. - If a new piece cannot spawn, show Game Over. Provide Pause/Resume and Restart, with restart resetting the board, score, level, and piece sequence state. Hold and ghost pieces are optional. Verify: Move and rotate the first piece, then hard-drop it. Check that it locks into the board, a new piece spawns, and the next-piece preview advances. Pause and resume, then use Restart and check the cleared board, score, and level.
thinking
Designing a self-contained single-page Tetris with canvas board, controls, scoring, level progression, and pause/restart logic.Defining board dimensions, piece matrices, rotation, 7-bag randomizer, and gravity timing.
Building your Tetris game — board, pieces, scoring, and controls.
{"command":"pwd; ls -la"}/tmp/job-JsnFZL total 12 drwx------ 3 node node 4096 Oct 9 06:49 . drwxrwxrwt 6 root root 4096 Oct 9 06:49 .. drwxr-xr-x 3 node node 4096 Oct 9 06:49 .home
thinking
Board and rules mapped — writing the full game to a single file.
index.html (12779 bytes)Successfully wrote to index.html
thinking
{"action":"reload"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
Initial render looks good — now verifying the required moves, drops, and resets.
{"action":"key","text":"ArrowLeft"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
{"action":"key","text":"ArrowUp"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
{"action":"key","text":" "}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
Debugging hard drop score logic by checking piece drop distance and DOM update against expected points.Investigating stale DOM snapshot versus live score update after hard drop execution.
Move, rotate, and hard-drop check out — now testing pause and restart.
{"action":"key","text":"p"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nPaused\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nResume\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
Analyzing why hard drop resulted in zero score by checking drop distance calculation and gravity timing.Investigating a missing score increment after hard drop despite visible piece lock and spawn.
Pause works — resuming and re-testing the hard-drop score.
{"action":"key","text":"p"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
Analyzing game state changes after resume, confirming gravity continued and hard-drop scoring is still zero.
Resume works. The hard-drop score looks stuck at 0, so I'm inspecting the scoring code.
{"limit":5,"offset":100,"path":"index.html"}if(bag.length===0) bag=newBag(); return bag.pop(); } function makePiece(type){ const matrix=SHAPES[type].map(r=>r.slice()); [250 more lines in file. Use offset=105 to continue.]
thinking
{"command":"grep -n \"score\" index.html | head -30"}42: <div class="stat"><span>Score</span><b id="score">0</b></div> 73: const scoreEl=document.getElementById('score'); 91: let board, score, lines, level, bag, current, next, gameOver, paused; 147: score=0; lines=0; level=1; gameOver=false; paused=false; 163: scoreEl.textContent=score; 189: score+=pts; 210: if(valid(current.matrix,current.x,current.y+1)){current.y++;score+=1;updateHUD();draw();return true;} 217: score+=dist*2; 236: if(softDropActive){score+=1;updateHUD();} 347: window.__tetris={reset,get state(){return {score,lines,level,gameOver,paused,currentType:current&¤t.type,next,nextPreview:next,curX:current&¤t.x,curY:current&¤t.y,board:board.map(r=>r.slice())};},move,rotate,hardDrop,softDrop,togglePause};
thinking
Analyzing timing and key handling to explain why space input produced a score of 0 due to gravity lock vs key mismatch.
The verification exposed a real bug: Space doesn't hard-drop in the test browser. Fixing the key handling to be robust.
{"edits":[{"newText":" document.addEventListener('keydown',e=>{\n const isSpace=(e.code==='Space'||e.key===' '||e.key==='Spacebar'||e.keSuccessfully replaced 1 block(s) in index.html.
thinking
{"action":"reload"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
{"action":"key","text":"ArrowUp"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
First piece verified. Now I'll move it and hard-drop to confirm it locks instantly with points.
{"action":"key","text":"ArrowLeft"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
{"action":"key","text":" "}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n6\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
{"action":"key","text":"r"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"TETRIS\nSCORE / LEVEL\nScore\n0\nLines\n0\nLevel\n1\nNEXT PIECE\nPause\nRestart\nCONTROLS\n◀ ▶ Move\n▲ / Up Rotate clockwise\n▼ / Down Soft-drop\nSpace Hard-drop\nP Pause R Restart\n10 × 20 board · 7 tetrominoes · scoring 100/300/500/800 × level · level up every 10 lines","images":"attached"}
thinking
All required checks pass. `index.html` is saved and verified. **What was checked in-browser:** - Initial render: 10×20 canvas board, score/lines/level panel, next-piece preview, controls list, Pause/Restart buttons — no console errors. - `ArrowLeft`: first piece shifted left; `ArrowUp`: piece rotated clockwise (shape/orientation changed, ghost updated). - `Space` (after fixing key handling to accept `e.code==='Space'` as well as `' '`/`'Space'`): first piece locked into the bottom cells, score went 0→6 (hard-drop points), a new piece spawned at the top, and the next-piece preview advanced (S→Z, then new bag after restart). - `P`: pause overlay + "Paused" message + button flips to Resume; `P` again resumes cleanly. - `R` Restart: board cleared (only fresh active piece + ghost remain), score/lines reset to 0, level back to 1, new next preview dealt. **Remaining unverified:** full line-clear scoring values (100/300/500/800×level), level-up gravity increase every 10 lines, and Game Over on blocked spawn — all implemented per spec but not exercised in the short browser pass due to time.