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Fireworks · mistral-small-2603

Create a fireworks display on a full-screen canvas where clicks launch shells that explode into gravity-affected, fading particle bursts.

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transcript · 6 messages
user

Create a fireworks display on a full-screen canvas where clicks launch shells that explode into gravity-affected, fading particle bursts.

assistant
thinking
The user wants a fireworks display with specific features:
1. Full-screen canvas
2. Clicks launch shells
3. Shells explode into particle bursts
4. Particles are affected by gravity
5. Particles fade out over time

I'll create a single self-contained HTML file with inline CSS and JavaScript. The approach will be:
- Use a full-screen canvas that covers the viewport
- Track mouse clicks to launch fireworks
- Each firework will have a trajectory and explode at the peak
- Particles will have position, velocity, gravity, and fade effects
- Use requestAnimationFrame for smooth animation
- No external resources - everything inline

Let me structure this:
1. HTML5 canvas element covering the full screen
2. CSS to make canvas full-screen and remove margins
3. JavaScript with:
   - Canvas setup and resize handling
   - Firework class representing launched shells
   - Particle class for the explosion particles
   - Gravity constant
   - Mouse event listener for clicks
   - Animation loop with requestAnimationFrame
   - Color palette for variety

I'll make it visually appealing with multiple colors and proper physics.

I'll create a full-screen fireworks display with gravity-affected particle bursts that fade out. Here's a self-contained HTML file:

write /tmp/ws/index.html (9326 bytes)
toolResult

Successfully wrote 9326 bytes to /tmp/ws/index.html

assistant
thinking
The user wants a fireworks display on a full-screen canvas where clicks launch shells that explode into gravity-affected, fading particle bursts. I need to create a self-contained HTML file with all CSS and JS inline.

Let me design this properly:
1. Full-screen canvas that fills the viewport
2. Click/touch interaction to launch fireworks from bottom to top
3. Fireworks should have an ascending phase with a trail
4. Explosions should create many particles with:
   - Gravity (particles fall down)
   - Wind (slight horizontal movement)
   - Fading alpha (particles disappear over time)
   - Random colors
5. Should be completely self-contained with no external resources
6. Should work on both desktop and mobile

I'll create:
- A full-screen canvas with black background
- Firework class for the ascending shell
- Particle class for the explosion pieces
- Mouse/touch event listeners to launch fireworks
- Animation loop with requestAnimationFrame
- Gravity and wind effects on particles
- Fading particles that disappear

Let me write the complete HTML file with inline CSS and JavaScript.

I'll create a full-screen fireworks display with gravity-affected particle bursts. Here's a self-contained HTML file:

write /tmp/ws/index.html (10857 bytes)
toolResult

Successfully wrote 10857 bytes to /tmp/ws/index.html

assistant
thinking
The user wants a fireworks display with specific features:
1. Full-screen canvas
2. Clicks launch shells
3. Shells explode into particle bursts
4. Particles are gravity-affected
5. Particles fade out
6. Single self-contained HTML file

I've created a comprehensive fireworks simulation with:
- Full-screen canvas that resizes with window
- Firework class that launches from bottom and explodes
- Particle class with gravity, wind, and fading
- Star-shaped particles for more interesting explosions
- Trail effects on ascending fireworks
- Mouse and touch support
- Clear screen functionality
- Random fireworks when idle
- Color cycling
- Clean UI with instructions

The code is all in one file as requested, with CSS in a style tag and JS in a script tag. It should work fully offline with no external dependencies.

Let me verify the file was created correctly and provide a summary.

Perfect! I've created a full-screen fireworks display with gravity-affected particle bursts. Here's what the application includes: ## Features: - **Full-screen canvas** that resizes with your window - **Click/tap anywhere** to launch firework shells from the bottom - **Gravity physics** - particles accelerate downward and drift with wind - **Fading particles** that gradually disappear - **Star-shaped particles** for more interesting explosions - **Trail effects** on ascending fireworks - **Colorful explosions** with hue cycling - **Mobile-friendly** with touch support - **Clear screen** button and spacebar shortcut ## How to Use: 1. Open `index.html` in any modern browser 2. Click or tap anywhere on the screen to launch fireworks 3. Press **Space** to clear the screen 4. Watch the gravity-affected particles burst and fade The entire application is self-contained in a single HTML file with no external dependencies - it runs fully offline! [View the file here: /tmp/ws/index.html] The fireworks simulate realistic physics with gravity pulling particles downward, wind causing horizontal drift, and particles fading out as they age. Each explosion creates 150-350 individual particles with randomized velocities for organic-looking 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

modelmistral-small-2603
vendorMistral AI
harnesspi-agent
generated2026-08-01

EVALUATION

4/5 working

Fireworks auto-launch and explode into colorful, fading gravity-affected particle bursts; click triggers new shells convincingly.

Vision grade · anthropic/claude-sonnet-5

MEASUREMENTS

Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.

idle motion11.4%
on click10.2%
on drag5.8%
on wheel8.1%
on enter + space1.4%
on arrow keys1.2%
on w/a/s/d2.7%
frame spread17.2 / 255
console errors0
js errors none

METRICS

runtime37.2s
tokens in12k
tokens out6.4k
cached6.6k
cost / run$0.0047