Fireworks · muse-ember
Output generated Cost / run $0.0123 Runtime 47.0s
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.
METRICS
Transcript · 25 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
index.html (13027 bytes)Successfully wrote to index.html
thinking
{"action":"inspect"}Frame 1, +0ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nClick the sky to launch a shell\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"action":"motion"}Frame 1, +0ms
[Browser image supplied to model]
Frame 2, +656ms
[Browser image supplied to model]
Frame 3, +1305ms
[Browser image supplied to model]
Frame 4, +1916ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nBurst at (600, 240) — 107 particles\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"action":"click","x":300,"y":200}Frame 1, +0ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nShell launched → (300, 200)\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"action":"motion"}Frame 1, +0ms
[Browser image supplied to model]
Frame 2, +604ms
[Browser image supplied to model]
Frame 3, +1197ms
[Browser image supplied to model]
Frame 4, +1837ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nBurst at (300, 200) — 80 particles\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"action":"click","x":900,"y":250}Frame 1, +0ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nShell launched → (900, 250)\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
{"action":"motion"}Frame 1, +0ms
[Browser image supplied to model]
Frame 2, +640ms
[Browser image supplied to model]
Frame 3, +1227ms
[Browser image supplied to model]
Frame 4, +1821ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nBurst at (900, 250) — 109 particles\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"action":"click","x":500,"y":300}Frame 1, +0ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nShell launched → (500, 300)\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"action":"click","x":1150,"y":31}Frame 1, +0ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nCleared — click the sky to launch\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"action":"click","x":700,"y":180}Frame 1, +0ms
[Browser image supplied to model]
{"console":[],"dom":"✦ FIREWORKS\n\nShell launched → (700, 180)\n\nClear\nClick anywhere in the sky to launch · shells burst at your click","images":"attached"}
thinking
{"command":"ls -lh index.html && grep -c \"http\" index.html || true"}-rw-r--r-- 1 node node 13K Nov 10 01:04 index.html 0
thinking
Built `index.html` — a single self-contained file (inline CSS/JS, no external resources/CDNs) with a full-screen canvas fireworks display: - **Shell launch:** Click/tap launches a glowing shell from the bottom of the scene toward the clicked coordinates (clamped to the visible sky), with an ascent spark trail, decelerating (ease-out) trajectory, then a radial burst of ~80–115 colored particles plus a flash/shockwave ring at the target. - **Particles:** Radial velocities, gravity, drag, twinkling, and lifetime-based fading; particles are removed after their lifetime (900–2100 ms). Multiple shells/bursts coexist in independent arrays. - **Auto demo:** One shell auto-launches at center-sky ~450 ms after load. - **Clear:** Fixed-position “Clear” button empties shells, particles, sparks, and flashes and fully repaints the canvas (removing trails); controls are in a fixed HUD so they remain usable, and a `resize` handler re-sizes the canvas (with DPR scaling) and repaints. - Procedural drawing only: starfield background, gradient shell glow, additive (`lighter`) particle rendering, and translucent-fill trails. **Verification performed (browser tool, 1200×800):** - Initial load: demo shell ascended and burst at (600, 240) with 107 particles — visible before any interaction; no console errors. - Click at (300, 200): sampled ascent (shell rising from bottom), burst status “Burst at (300, 200) — 80 particles,” and early particle fall/fade over subsequent motion frames — confirming the click sets the launch/burst target. Repeated at (900, 250) → 109 particles. - Clear: launched a shell at (500, 300), clicked Clear — scene emptied (only stars remained, status “Cleared…”, no stray shell from the button click), and a post-Clear click at (700, 180) successfully launched again. **Remains unverified:** Truly simultaneous overlapping shells (launches were sequential in testing, though the array-based design supports overlap), and behavior under an actual viewport resize during a live burst (resize handling is implemented but not exercised in the browser tool).