Boids flocking · qwen3.5-122b-a10b
Create a full-screen flocking simulation of boids using separation, alignment, and cohesion, drawn as oriented triangles that steer smoothly and flee from the mouse cursor.
transcript · 6 messages
Create a full-screen flocking simulation of boids using separation, alignment, and cohesion, drawn as oriented triangles that steer smoothly and flee from the mouse cursor.
thinking
The user wants me to create a boids simulation in a single HTML file. This is a classic flocking algorithm that includes: 1. Separation - avoid crowding neighbors 2. Alignment - steer towards average heading of neighbors 3. Cohesion - steer towards average position of neighbors 4. Mouse flee - avoid the mouse cursor I'll create a complete self-contained HTML file with: - Canvas for rendering - Boid class with position, velocity, acceleration - Flocking behaviors (separation, alignment, cohesion) - Mouse interaction for fleeing - Triangles drawn as oriented boids Let me write this out.
index.html (13314 bytes)Successfully wrote 13314 bytes to index.html
thinking
I've created a complete boids flocking simulation in a single HTML file. Let me verify it was written correctly by checking the file exists.
{"command":"ls -la index.html"}-rw-r--r--. 1 node node 13314 Aug 1 19:46 index.html
thinking
The file was created successfully. Let me provide a summary of what the simulation includes.
Done! The `index.html` file contains a complete boids flocking simulation with: - **150 boids** drawn as oriented triangles that follow their velocity direction - **Separation**: Boids steer away from nearby neighbors to avoid crowding - **Alignment**: Boids match their heading with nearby flockmates - **Cohesion**: Boids steer toward the average position of neighbors - **Mouse flee**: Boids flee from the mouse cursor when it gets close - **Smooth steering**: Forces are limited for natural, smooth movement - **Boundary handling**: Boids gently turn back when reaching edges - **Click to add**: Click anywhere to spawn new boids - **Trails effect**: Subtle motion trails for visual appeal
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
EVALUATION
Boids counter shows 150 but only a couple tiny triangles are visible drifting on a mostly empty dark background.
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.