Fireworks · deepseek-v4-pro
Output generated Cost / run $0.0044 Runtime 62.1s
Prompt for this run
Create a fireworks display on a full-screen canvas where clicks launch shells that explode into gravity-affected, fading particle bursts.
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 · 6 messages
Create a fireworks display on a full-screen canvas where clicks launch shells that explode into gravity-affected, fading particle bursts.
thinking
The user wants a fireworks display web app in a single self-contained `index.html` file. Let me build this with: 1. Full-screen canvas 2. Click to launch fireworks shells 3. Shells explode into particles 4. Particles are affected by gravity 5. Particles fade out 6. Beautiful colors Let me create a complete implementation with: - A dark night sky background - Firework shells that launch upward from the click position - Shells that explode into circular bursts of particles - Gravity pulling particles down - Particles that fade (alpha decreases) and shrink - Trail effect on the shell as it rises - Random colors for each firework - Maybe some sparkle/twinkle effects Let me write this out fully.
/workspace/index.html (8685 bytes)Successfully wrote 8685 bytes to /workspace/index.html
thinking
The file is written. Let me verify it's there and looks good.
{"command":"ls -la /workspace/index.html && wc -l /workspace/index.html"}-rw-r--r-- 1 node node 8688 Jul 8 00:55 /workspace/index.html 304 /workspace/index.html
thinking
File is written and verified. Let me give the user a summary of what was built.
Done! `/workspace/index.html` is ready — open it in any browser. Here's what it does: **Core mechanics:** - **Click anywhere** to launch a firework shell from the bottom of the screen - Shells rise with a sparkling trail, then **explode** at their peak into 80–180 particles - Particles are affected by **gravity** (98 px/s² downward), **air drag**, and **fade out** gracefully - A **delayed secondary burst** creates a layered explosion effect with a shifted hue **Visual details:** - Dark night-sky background with **140 twinkling stars** - Four randomized explosion patterns: ring, sphere, double-ring, and willow - Glow (`shadowBlur`) on every particle for a luminous, realistic look - Trail sparks shed from the rising shell every ~25ms - Fading "click anywhere to launch" hint that disappears on first interaction **Self-contained:** No external files, no CDN, no network — pure HTML/CSS/JS in a single file.