Boids flocking · qwen3.6-35b-a3b
Output generated Cost / run $0.0033 Runtime 49.5s
Prompt for this run
Build a full-screen canvas flocking simulation with 150 boids drawn as oriented triangles. 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: - Combine separation, alignment, and cohesion so nearby boids avoid crowding, align their headings, and form moving groups. Triangles point in their direction of travel. - Use bounded speed and steering so motion changes smoothly instead of teleporting. Wrap boids across screen edges. - Boids within a visible or documented cursor-influence radius steer away from the pointer. They resume flocking after the pointer moves away. - Provide Pause/Resume and Reset. Pause freezes simulation state; Reset restores a fresh population of 150 boids. - Fit the canvas to the viewport and keep the population and controls usable after resizing. Verify: Sample the flock at several moments to check coordinated movement and triangles pointing along their travel direction. Try the cursor interaction with available pointer actions, then pause and resume to check that the flock freezes and continues.
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 · 7 messages
Build a full-screen canvas flocking simulation with 150 boids drawn as oriented triangles. 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: - Combine separation, alignment, and cohesion so nearby boids avoid crowding, align their headings, and form moving groups. Triangles point in their direction of travel. - Use bounded speed and steering so motion changes smoothly instead of teleporting. Wrap boids across screen edges. - Boids within a visible or documented cursor-influence radius steer away from the pointer. They resume flocking after the pointer moves away. - Provide Pause/Resume and Reset. Pause freezes simulation state; Reset restores a fresh population of 150 boids. - Fit the canvas to the viewport and keep the population and controls usable after resizing. Verify: Sample the flock at several moments to check coordinated movement and triangles pointing along their travel direction. Try the cursor interaction with available pointer actions, then pause and resume to check that the flock freezes and continues.
thinking
The user wants me to build a flocking simulation with boids (150 boids drawn as oriented triangles) with: 1. Separation, alignment, cohesion (classic boids algorithm) 2. Triangles pointing in direction of travel 3. Bounded speed and steering 4. Screen wrapping (toroidal) 5. Cursor interaction (boids steer away from pointer) 6. Pause/Resume and Reset buttons 7. Full-screen canvas 8. Resize handling Let me build this as a single index.html file with inline CSS and JS. I'll write the complete implementation, then test it in the browser.
/tmp/job-Fyhuxb/index.html (9981 bytes)Successfully wrote to /tmp/job-Fyhuxb/index.html
thinking
Good, the file is written. Now let me open it in the browser to verify the simulation works correctly.
{"action":"screenshot"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nReset\nMove mouse over canvas to repel boids.\nBoids: 150 | Separation, Alignment, Cohesion\nBoids: 150 Avg Speed: 2.65","images":"attached"}
thinking
The flocking simulation is working. Let me check the key behaviors: 1. **Boids rendering as oriented triangles** - ✓ Triangles are visible 2. **Coordinated movement** - I can see some grouping forming 3. **Separation, alignment, cohesion** - The flock behavior looks present 4. **Mouse interaction** - I need to test this (cursor influence radius) 5. **Pause/Resume** - I can see the button labeled "Pause" 6. **Reset** - I can see the button labeled "Reset" Let me now test: - Move the mouse over the canvas to see if boids steer away from the cursor - Click Pause to freeze the simulation - Click Resume to unfreeze - Click Reset to create a fresh population Let me move the mouse over the canvas area to test the cursor interaction.
The simulation looks good from the initial render. Let me now test the key behaviors: mouse interaction, pause/resume, and reset. **Step 1: Test cursor interaction** — move mouse over canvas to verify boids repel bash: ``` move-mouse 500 300 ```