Reaction-diffusion · mistral-large-4-0
Output saved · Stopped by an API error Cost / run $0.0522 Runtime 350.8s
A model request failed and its retries ran out. The output is the HTML saved before that.
Prompt for this run
Build a Gray-Scott reaction-diffusion simulation 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: - Maintain two chemical concentration fields, U and V, with diffusion and the Gray-Scott reaction, feed, and removal terms. Evolve these fields rather than displaying a prerecorded pattern. - Use a square simulation grid with wrapping boundaries. Choose stable time and spatial steps with parameters Du = 0.16, Dv = 0.08, feed = 0.035, and kill = 0.062 in simulation units. - Initially fill the field with U = 1 and V = 0, then seed a small central region with V and reduced U. Map concentrations to contrasting colors so evolving organic patterns are visible. - Clicking or dragging adds V and reduces U near the pointer. Provide Pause/Resume and Reset; Reset restores the initial fields and seed. - Choose Canvas 2D or WebGL, and bound grid resolution and work per frame to keep interaction responsive. Verify: Sample early field evolution, then seed a separate region with the pointer. Check that the added region affects the following frames. Pause and resume, then reset and compare the restored central seed with the initial scene.
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 · 24 messages
Build a Gray-Scott reaction-diffusion simulation 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: - Maintain two chemical concentration fields, U and V, with diffusion and the Gray-Scott reaction, feed, and removal terms. Evolve these fields rather than displaying a prerecorded pattern. - Use a square simulation grid with wrapping boundaries. Choose stable time and spatial steps with parameters Du = 0.16, Dv = 0.08, feed = 0.035, and kill = 0.062 in simulation units. - Initially fill the field with U = 1 and V = 0, then seed a small central region with V and reduced U. Map concentrations to contrasting colors so evolving organic patterns are visible. - Clicking or dragging adds V and reduces U near the pointer. Provide Pause/Resume and Reset; Reset restores the initial fields and seed. - Choose Canvas 2D or WebGL, and bound grid resolution and work per frame to keep interaction responsive. Verify: Sample early field evolution, then seed a separate region with the pointer. Check that the added region affects the following frames. Pause and resume, then reset and compare the restored central seed with the initial scene.
/tmp/job-6ta1a1/index.html (10343 bytes)Successfully wrote to /tmp/job-6ta1a1/index.html
{"action":"inspect"}Frame 1, +1ms
[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":"Gray-Scott Reaction–Diffusion\nPause\nReset\n—\nV low → high\nClick or drag on the canvas to seed V. Du=0.16 Dv=0.08 F=0.035 k=0.062, wrapping boundaries.","images":"attached"}
The canvas is rendering only in the top-left quadrant — the canvas is 512×512 but the simulation is 256×256, and `putImageData` draws at native resolution. I need to scale the canvas display size to 512 while keeping the ImageData at 256, or set canvas width/height to 256. Better: keep canvas at 512×512 but draw the ImageData to an offscreen 256 canvas and scale up with `imageSmoothingEnabled = false`.
{"path":"/tmp/job-6ta1a1/index.html","oldText":"// Pre-rendered ImageData for display.\nconst image = ctx.createImageData(N, N);\nconst pixeSuccessfully replaced 1 block(s) in /tmp/job-6ta1a1/index.html.
{"path":"/tmp/job-6ta1a1/index.html","oldText":" ctx.putImageData(image, 0, 0);\n}","newText":" octx.putImageData(image, 0, 0);\n ctx.imaSuccessfully replaced 1 block(s) in /tmp/job-6ta1a1/index.html.
{"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":"Gray-Scott Reaction–Diffusion\nPause\nReset\n—\nV low → high\nClick or drag on the canvas to seed V. Du=0.16 Dv=0.08 F=0.035 k=0.062, wrapping boundaries.","images":"attached"}
Now rendering full canvas with the three seeds visible. Let me wait for evolution and take a screenshot to see patterns develop, then test interaction (click to seed), pause/resume, and reset.
{"action":"motion","delta":3000}Validation failed for tool "browser": - delta: must be <= 1600 Received arguments: { "action": "motion", "delta": 3000 }
{"action":"motion","delta":1500}Frame 1, +0ms
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Frame 2, +612ms
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Frame 3, +1214ms
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Frame 4, +1833ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Gray-Scott Reaction–Diffusion\nPause\nReset\nfps 60 · steps 480/s · V mean 0.047 max 0.388\nV low → high\nClick or drag on the canvas to seed V. Du=0.16 Dv=0.08 F=0.035 k=0.062, wrapping boundaries.","images":"attached"}
Excellent — organic patterns are evolving nicely at 60fps. Now test pointer seeding in a separate region (e.g., bottom-right corner), then pause/resume, then reset.
{"action":"click","x":850,"y":650}{"action":"motion","delta":1200}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":"Gray-Scott Reaction–Diffusion\nPause\nReset\nfps 60 · steps 480/s · V mean 0.098 max 0.397\nV low → high\nClick or drag on the canvas to seed V. Du=0.16 Dv=0.08 F=0.035 k=0.062, wrapping boundaries.","images":"attached"}
Frame 1, +1ms
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Frame 2, +642ms
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Frame 3, +1259ms
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Frame 4, +1921ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Gray-Scott Reaction–Diffusion\nPause\nReset\nfps 58 · steps 464/s · V mean 0.112 max 0.395\nV low → high\nClick or drag on the canvas to seed V. Du=0.16 Dv=0.08 F=0.035 k=0.062, wrapping boundaries.","images":"attached"}