Fireworks · muse-wonder
Output generated Cost / run $1.7517 Runtime 239.3s
Prompt for this run
Build an interactive fireworks display on a full-screen 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: - Clicking the sky launches a visible shell upward from the bottom of the scene toward the clicked location. The shell then explodes into a radial burst of colored particles. - Burst particles fall under gravity, fade over time, and are removed after their lifetime. Support several overlapping shells and bursts. - Launch one demonstration shell automatically on initial load so the effect is visible before interaction; subsequent shells respond to clicks. - Provide Clear to remove active shells, particles, and trails. Keep controls usable after resizing. - Use procedural drawing only. Choose the visual design, palette, and trails freely while keeping the launch-to-burst sequence visible. Verify: Trigger a shell at a chosen location and sample its ascent, burst, and early particle fall. Check that the click affects the launch target and that particles visibly spread and fade. Use Clear and confirm the scene is emptied.
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 · 53 messages
Build an interactive fireworks display on a full-screen 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: - Clicking the sky launches a visible shell upward from the bottom of the scene toward the clicked location. The shell then explodes into a radial burst of colored particles. - Burst particles fall under gravity, fade over time, and are removed after their lifetime. Support several overlapping shells and bursts. - Launch one demonstration shell automatically on initial load so the effect is visible before interaction; subsequent shells respond to clicks. - Provide Clear to remove active shells, particles, and trails. Keep controls usable after resizing. - Use procedural drawing only. Choose the visual design, palette, and trails freely while keeping the launch-to-burst sequence visible. Verify: Trigger a shell at a chosen location and sample its ascent, burst, and early particle fall. Check that the click affects the launch target and that particles visibly spread and fade. Use Clear and confirm the scene is emptied.
thinking
{"command":"pwd; ls -la"}/tmp/job-fUo94W total 12 drwx------ 3 node node 4096 Oct 15 04:04 . drwxrwxrwt 6 root root 4096 Oct 15 04:04 .. drwxr-xr-x 3 node node 4096 Oct 15 04:04 .home
thinking
Implementing full-screen canvas fireworks with click-launched shells, particle physics, auto demo, and clear controls while keeping UI responsive on resize.Adjusting the top bar pointer events and finalizing the shell launch trajectory from the bottom to the click point.
index.html (18777 bytes)Successfully wrote to index.html
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{"action":"inspect"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"motion"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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Analyzing shell flight physics and explosion trigger condition to diagnose why particles appear without a visible burst.
{"action":"click","x":420,"y":260}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 1 · Particles 14\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"motion"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"click","x":700,"y":240}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 1 · Particles 1\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"screenshot"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"path":"index.html","edits":[{"oldText":" var flight = Math.max(0.65, Math.min(1.6, dist / 620)); // seconds to target","newText":" vSuccessfully replaced 3 block(s) in index.html.
{"action":"reload"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"click","x":420,"y":260}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 1 · Particles 3\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
{"action":"screenshot"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 82\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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Analyzing particle count discrepancy and drag decay to explain why the burst is not visible.Investigating why particles are invisible despite DOM count, focusing on alpha and rendering scale.
{"action":"click","x":600,"y":280}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"motion"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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Analyzing motion frame timing discrepancies due to tool latency and adjusting visible phase durations for external sampling.
{"action":"click","x":1024,"y":28}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: On\n✕ Clear","images":"attached"}
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{"action":"motion"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 1 · Particles 183\n🎆 Launch random\nAuto show: On\n✕ Clear","images":"attached"}
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Adjusting particle trail length via velocity scaling for radial streaks and increasing size, speed, and brightness.
{"path":"index.html","edits":[{"oldText":" var baseSpeed = rand(190, 300);","newText":" var baseSpeed = rand(250, 370);"},{"oldText":"Successfully replaced 2 block(s) in index.html.
{"action":"reload"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"click","x":500,"y":240}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 1 · Particles 3\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"screenshot"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"click","x":1024,"y":28}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 1 · Particles 2\n🎆 Launch random\nAuto show: On\n✕ Clear","images":"attached"}
{"action":"motion"}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 2 · Particles 292\n🎆 Launch random\nAuto show: On\n✕ Clear","images":"attached"}
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{"action":"click","x":1024,"y":28}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 2 · Particles 302\n🎆 Launch random\nAuto show: Off\n✕ Clear","images":"attached"}
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{"action":"click","x":1142,"y":28}Frame 1, +0ms
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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":"FIREWORKS\n\nClick the sky to launch a shell to that spot\n\nShells 0 · Particles 0\n🎆 Launch random\nAuto show: Off\n✕ Clear\nSky cleared","images":"attached"}
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{"command":"ls -lh index.html; grep -nE \"https?://|src=|@import|url\\(\" index.html || echo \"no external references found\""}-rw-r--r-- 1 node node 19K Oct 15 04:06 index.html no external references found
thinking
Created `index.html` (19 KB, fully self-contained — no external assets, CDNs, or network requests). **What's in it:** - Full-screen canvas with a procedural night sky: gradient, twinkling stars, crescent moon, and a lit skyline silhouette. - Clicking the sky shows a target marker and launches a glowing shell from the bottom that arcs/climbs to the clicked point (targets are clamped so the climb is always visible), leaving spark trails. - On arrival the shell explodes into ~110–160 radial particles in varied color palettes, with an expanding flash, velocity-stretched trails, glowing heads, gravity, air drag, twinkle, and lifetime fading/removal. Multiple shells and bursts overlap. - One demonstration shell auto-launches ~350 ms after load. - Controls: **Clear** (removes shells, particles, flashes, markers and repaints the background immediately), **Launch random**, and an **Auto show** toggle. Live shell/particle counters, Space/C keyboard shortcuts, DPR-aware resizing that rebuilds the scenery and keeps entities on-screen. **Verified in the browser:** - Clicked at (500, 240): marker appeared exactly at the click point, counter showed "Shells 1", and the shell was visible rising from the bottom toward it — confirming the click sets the launch target. - Motion capture of bursts (via Auto show): shells ascending with spark trails, a fresh radial burst, particles spreading, falling under gravity, and fading — particle counts decreased 394 → 293 → 193 across frames as particles expired. - Clear test: with 2 shells / 302 particles active, clicking Clear emptied the scene to "Shells 0 · Particles 0" with a "Sky cleared" toast, and the sky stayed empty afterward. - No console errors (only the sandbox iframe warning from the test harness). **Not verified:** actual viewport-resize behavior (no resize control in the browser tool — the resize handler is implemented but untested live), and a single click's burst captured frame-by-frame across separate screenshots, since inter-call latency exceeded one burst's lifetime; the same ascent→burst→fall sequence was instead confirmed within a single motion capture.