Flow-field particles · muse-ember
Output generated Cost / run $0.0117 Runtime 56.9s
Prompt for this run
Build a full-screen flow-field particle animation using the provided p5.js library in global or instance mode. 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. Use the provided `p5.min.js` (global `p5`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Animate at least 2,000 particles, with motion guided by a smoothly varying Perlin-noise vector field. Nearby particles should follow locally coherent directions. - Leave fading trails and vary particle colors over time. Evolve the field gradually so the pattern changes instead of repeating a short recorded sequence. - Recycle particles at the canvas boundaries and keep the population bounded. Avoid allocating an ever-growing trail history. - Provide Pause/Resume and Restart. Restart clears trails and initializes a new particle arrangement. - Fit the viewport and keep controls responsive at 1200 by 800. Choose the palette, field scale, and particle speed freely. Verify: Sample the animation at several moments to inspect coherent nearby particle motion, fading trails, and changing colors. Pause and resume, then use Restart and check that the trails clear and a new arrangement appears.
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.
METRICS
Transcript · 23 messages
Build a full-screen flow-field particle animation using the provided p5.js library in global or instance mode. 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. Use the provided `p5.min.js` (global `p5`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Animate at least 2,000 particles, with motion guided by a smoothly varying Perlin-noise vector field. Nearby particles should follow locally coherent directions. - Leave fading trails and vary particle colors over time. Evolve the field gradually so the pattern changes instead of repeating a short recorded sequence. - Recycle particles at the canvas boundaries and keep the population bounded. Avoid allocating an ever-growing trail history. - Provide Pause/Resume and Restart. Restart clears trails and initializes a new particle arrangement. - Fit the viewport and keep controls responsive at 1200 by 800. Choose the palette, field scale, and particle speed freely. Verify: Sample the animation at several moments to inspect coherent nearby particle motion, fading trails, and changing colors. Pause and resume, then use Restart and check that the trails clear and a new arrangement appears.
thinking
{"command":"pwd; ls -la; ls -lh p5.min.js 2>&1 | head"}/tmp/job-jdzAxD total 1024 drwx------ 3 node node 4096 Nov 10 02:40 . drwxrwxrwt 8 root root 4096 Nov 10 02:40 .. drwxr-xr-x 3 node node 4096 Nov 10 02:40 .home -rw-r--r-- 1 node node 1034532 Nov 10 02:40 p5.min.js -rw-r--r-- 1 node node 1011K Nov 10 02:40 p5.min.js
thinking
index.html (9804 bytes)Successfully wrote to index.html
{"action":"reload"}Frame 1, +0ms
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{"console":[],"dom":"FLOW FIELD\n\nPerlin-noise vector field · nearby particles share coherent direction. The field evolves slowly, so the pattern never repeats a short loop.\n\nRUNNING\n2500 PARTICLES\n60 FPS\n⏸ Pause\n↻ Restart\nSPEED\n1.2×\nTRAILS\n16\nFIELD\n0.0028\nSpace = pause · R = restart","images":"attached"}
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{"edits":[{"oldText":" noiseSeed(1234);\n randomSeed(1234);\n background(...BG);","newText":" noiseSeed(1234);\n randomSeed(1234);\n cSuccessfully replaced 4 block(s) in index.html.
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{"action":"reload"}Frame 1, +0ms
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{"console":[],"dom":"FLOW FIELD\n\nPerlin-noise vector field · nearby particles share coherent direction. The field evolves slowly, so the pattern never repeats a short loop.\n\nRUNNING\n2500 PARTICLES\n60 FPS\n⏸ Pause\n↻ Restart\nSPEED\n1.2×\nTRAILS\n16\nFIELD\n0.0028\nSpace = pause · R = restart","images":"attached"}
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{"console":[],"dom":"FLOW FIELD\n\nPerlin-noise vector field · nearby particles share coherent direction. The field evolves slowly, so the pattern never repeats a short loop.\n\nRUNNING\n2500 PARTICLES\n42 FPS\n⏸ Pause\n↻ Restart\nSPEED\n1.2×\nTRAILS\n16\nFIELD\n0.0028\nSpace = pause · R = restart","images":"attached"}
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{"console":[],"dom":"FLOW FIELD\n\nPerlin-noise vector field · nearby particles share coherent direction. The field evolves slowly, so the pattern never repeats a short loop.\n\nPAUSED\n2500 PARTICLES\n50 FPS\n▶ Resume\n↻ Restart\nSPEED\n1.2×\nTRAILS\n16\nFIELD\n0.0028\nSpace = pause · R = restart","images":"attached"}
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{"console":[],"dom":"FLOW FIELD\n\nPerlin-noise vector field · nearby particles share coherent direction. The field evolves slowly, so the pattern never repeats a short loop.\n\nRUNNING\n2500 PARTICLES\n50 FPS\n⏸ Pause\n↻ Restart\nSPEED\n1.2×\nTRAILS\n16\nFIELD\n0.0028\nSpace = pause · R = restart","images":"attached"}
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{"action":"click","x":456,"y":727}Frame 1, +0ms
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{"console":[],"dom":"FLOW FIELD\n\nPerlin-noise vector field · nearby particles share coherent direction. The field evolves slowly, so the pattern never repeats a short loop.\n\nRUNNING\n2500 PARTICLES\n58 FPS\n⏸ Pause\n↻ Restart\nSPEED\n1.2×\nTRAILS\n16\nFIELD\n0.0028\nSpace = pause · R = restart","images":"attached"}
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{"action":"motion"}Frame 1, +0ms
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{"console":[],"dom":"FLOW FIELD\n\nPerlin-noise vector field · nearby particles share coherent direction. The field evolves slowly, so the pattern never repeats a short loop.\n\nRUNNING\n2500 PARTICLES\n34 FPS\n⏸ Pause\n↻ Restart\nSPEED\n1.2×\nTRAILS\n16\nFIELD\n0.0028\nSpace = pause · R = restart","images":"attached"}
thinking
Built `index.html` — a full-screen p5.js flow-field (global mode, local `<script src="p5.min.js">`, no CDN/network): - **2,500 particles** (bounded pool, max 4,000; recycled on boundary/lifetime expiry, no growing trail history — trails via translucent wash) - **Perlin-noise vector field** (`noise(x·scale, y·scale, evolving t) × 4π`) for locally coherent motion; field time increments slowly so the pattern evolves rather than loops - **Fading trails + time-varying colors** (HSB hue drift + noise modulation), deep-navy background (fixed an HSB/RGB background bug where `background()` was tinted brown) - **Pause/Resume & Restart** buttons (plus Space/R shortcuts); Restart reseeds noise/random, opaquely clears trails, and re-initializes particles - **Responsive 1200×800 layout**: glass HUD with live particle/FPS count, bottom control bar with Speed/Trails/Field sliders, `windowResized` handling **Checked in browser:** - Reload: no console errors, 2,500 particles, ~60 FPS - Motion sampling over ~2s: coherent neighboring streams, accumulating fading trails, colors shifting, pattern evolving - Pause → status changed to Paused/▶ Resume and animation froze; Resume → Running again - Restart → trails visibly cleared to sparse dots with a new arrangement, then trails rebuilt in subsequent motion frames **Remaining unverified:** slider drag behavior and window-resize at other viewports were not exercised; long-term (minutes-long) field evolution was only sampled for a few seconds.