Maze generator & solver · muse-spark-1.3
Output generated Cost / run $0.1342 Runtime 73.5s
Prompt for this run
Build a maze generator and solver visualization on a canvas. 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: - Generate a 25 by 15 cell rectangular maze using randomized recursive backtracking. All cells must be reachable, with exactly one simple path between any pair of cells. - Use the upper-left cell as Start and lower-right as Finish. Draw cell walls clearly and animate generation so carving progress is visible. - After generation finishes, animate either BFS or A-star exploring the maze, then highlight the complete path from Start to Finish. The path must cross only open passages. - Provide New Maze and Replay Solver. New Maze cancels the previous animation and generates a fresh maze; Replay Solver uses the existing maze without changing its walls. - Mark start, finish, exploration, and solution with distinguishable styles and a short legend. Verify: Inspect maze-carving progress and request New Maze while animation is active. Check that the new generation replaces the previous view cleanly. If the solver starts during inspection, check that its visible steps follow open passages.
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 · 25 messages
Build a maze generator and solver visualization on a canvas. 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: - Generate a 25 by 15 cell rectangular maze using randomized recursive backtracking. All cells must be reachable, with exactly one simple path between any pair of cells. - Use the upper-left cell as Start and lower-right as Finish. Draw cell walls clearly and animate generation so carving progress is visible. - After generation finishes, animate either BFS or A-star exploring the maze, then highlight the complete path from Start to Finish. The path must cross only open passages. - Provide New Maze and Replay Solver. New Maze cancels the previous animation and generates a fresh maze; Replay Solver uses the existing maze without changing its walls. - Mark start, finish, exploration, and solution with distinguishable styles and a short legend. Verify: Inspect maze-carving progress and request New Maze while animation is active. Check that the new generation replaces the previous view cleanly. If the solver starts during inspection, check that its visible steps follow open passages.
thinking
Designing a single-file canvas maze with responsive sizing, recursive backtracking generation, BFS/A* solving, and cancelable animations with UI controls.Adding cancellable stepwise generation, BFS solver replay, and color-coded UI controls.
Building your animated maze generator and solver — perfect 25×15 labyrinth with live carving and pathfinding.
index.html (13608 bytes)Successfully wrote to index.html
thinking
File saved — now verifying live carving, maze reset, and solver behavior in the browser.
{"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":"Maze Generator & Solver\n25 × 15 perfect maze — randomized recursive backtracking + BFS solver\nNew Maze\nReplay Solver\nSpeed\n1×\nCarving maze…\nStart (top-left)\nFinish (bottom-right)\nCarved / unvisited frontier\nBFS exploration\nSolution path\nGeneration head","images":"attached"}
thinking
{"action":"click","x":389,"y":100}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":"Maze Generator & Solver\n25 × 15 perfect maze — randomized recursive backtracking + BFS solver\nNew Maze\nReplay Solver\nSpeed\n1×\nCarving maze…\nStart (top-left)\nFinish (bottom-right)\nCarved / unvisited frontier\nBFS exploration\nSolution path\nGeneration head","images":"attached"}
thinking
Identifying a UI bug where disabling New Maze violates cancel requirement and adjusting button states to keep it enabled during animation.
Mid-generation reset is blocked because the button locks — fixing that so a fresh maze cleanly cancels the running animation.
{"edits":[{"newText":" async function newMazeFlow(){\n const myRun=++runId;\n btnReplay.disabled=true;\n busy=true;","oldText":" Successfully replaced 1 block(s) in index.html.
{"edits":[{"newText":" } finally{\n if(myRun===runId){ btnReplay.disabled=false; busy=false; }\n }\n }\n\n async function replaSuccessfully replaced 1 block(s) in index.html.
{"edits":[{"newText":" } finally{\n if(myRun===runId){ btnReplay.disabled=false; }\n }","oldText":" } finally{\n if(myRunSuccessfully replaced 1 block(s) in index.html.
thinking
{"command":"grep -n \"disabled\\|finally\\|myRun===runId\" index.html | head -20"}34: button:disabled { opacity: .5; cursor: default; } 372: btnReplay.disabled=true; 378: } finally{ 379: if(myRun===runId){ btnReplay.disabled=false; busy=false; } 387: btnReplay.disabled=true; 395: } finally{ 396: if(myRun===runId){ btnReplay.disabled=false; }
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":"Maze Generator & Solver\n25 × 15 perfect maze — randomized recursive backtracking + BFS solver\nNew Maze\nReplay Solver\nSpeed\n1×\nCarving maze…\nStart (top-left)\nFinish (bottom-right)\nCarved / unvisited frontier\nBFS exploration\nSolution path\nGeneration head","images":"attached"}
thinking
{"action":"click","x":389,"y":100}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":"Maze Generator & Solver\n25 × 15 perfect maze — randomized recursive backtracking + BFS solver\nNew Maze\nReplay Solver\nSpeed\n1×\nCarving maze…\nStart (top-left)\nFinish (bottom-right)\nCarved / unvisited frontier\nBFS exploration\nSolution path\nGeneration head","images":"attached"}
thinking
Reset works cleanly — now watching the solver run to confirm it tracks open passages.
{"action":"motion"}Frame 1, +0ms
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Frame 2, +536ms
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Frame 3, +1069ms
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Frame 4, +1603ms
[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":"Maze Generator & Solver\n25 × 15 perfect maze — randomized recursive backtracking + BFS solver\nNew Maze\nReplay Solver\nSpeed\n1×\nDone — BFS visited 208 cells, shortest path length 119 steps.\nStart (top-left)\nFinish (bottom-right)\nCarved / unvisited frontier\nBFS exploration\nSolution path\nGeneration head","images":"attached"}
thinking
Final maze and solution look correct — doing one last check that Replay re-solves the same walls.
{"action":"click","x":526,"y":100}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":"Maze Generator & Solver\n25 × 15 perfect maze — randomized recursive backtracking + BFS solver\nNew Maze\nReplay Solver\nSpeed\n1×\nReplaying solver on same maze…\nStart (top-left)\nFinish (bottom-right)\nCarved / unvisited frontier\nBFS exploration\nSolution path\nGeneration head","images":"attached"}
thinking
Done — `index.html` is saved and verified. **What I checked in the browser:** - **Generation animation:** pink head visibly carves from Start, walls draw progressively, status shows "Carving maze…". No console errors. - **New Maze mid-animation:** clicked while carving — old run cancelled, canvas reset cleanly to a fresh grid with the head back at Start, no ghost walls or overlapping animations. Fixed one issue found: New Maze was initially disabled during generation; now it stays enabled so cancel always works. - **Solver:** BFS exploration (teal) spreads only through open corridors, then the yellow solution path animates from Start (green `S`) to Finish (red `F`). Final example: 208 cells visited, 119-step path, path visually stays inside passages. - **Replay Solver:** clears exploration/path but keeps identical walls, re-runs BFS on the same maze. **Remaining unverified:** exhaustive proof that every generated maze is perfect (logic is standard iterative recursive-backtracking on 25×15, which guarantees a single simple path between any cells); only a few mazes were visually sampled.