Boids flocking · kimi-k3.1-pro

I need implement. Should inspect cwd perhaps empty. Should plan quickly. Should create visually polished full screen canvas 150 boids, controls, radius visible hover. Should browser verify including sample moments, pointer pause reset resize console. I have 15 mins. Should use tools. Start ls.

I'll create index. Think design: black navy background, subtle star grain? full-screen flock with dashboard floating top left title "Murmuration" / FLOCK LAB. top right stats. bottom center control pill Pause Reset. Canvas occupies all viewport. Header pointer events none except controls. Cursor ring visible when within canvas pointer active. Boids beautiful mint/cyan/orange slight variations. Draw oriented triangles with glow trails perhaps simple efficient. Neighbor algorithm O(n²)=22.5k fine. Spatial grid better robust. Use separation distance 24, perception 72, alignment 55. max speed 2.5 based dt normalized; max force 0.055 per frame. Steering accum weighted. Edge wrap with neighbor calculations non wrapping perhaps groups near boundaries split but okay. Cursor repel within 130 documented ring. On pointer leave deactivate. Touch supported pointer. Pause freezes state incl time? request animate still draws but no update. Reset seed fresh 150. Canvas resize DPR. Speed dt capped 2 frames. Triangles point along velocity via atan2. Add slight tails oriented. Stats FPS. control keyboard Space R. Include reduced motion? not needed. initial random clusters perhaps random evenly, velocities random. Flocking emerges. Cursor ring drawn canvas to ensure full-screen. Pointer ring with radius 125 and label "REPEL FIELD" perhaps CSS div follows pointer easier draw. Cursor should be custom none only canvas? Keep default plus visible ring. UI button clicks should not trigger pointer influence because canvas pointermove only and pointer events UI overlay. Add pointermove on window but ignore if closest .panel? easier canvas events. Canvas full. control positions. Accessible aria labels.

Should have simulation pausing freeze exact, use no update when pause. FPS can change but boids not. Reset pause remains? required fresh population; could preserve pause or auto resume. Usually reset fresh population and resume. implement reset(false?) reset creates boids and keeps paused? user reset expecting fresh; choose reset calls reset and remains current state? Better reset restores and resumes? Control usability. I'll say Reset fresh population; no requirement pause. Implement reset with same pause state perhaps fresh frozen if paused confusing. Make reset sets paused=false. UI button update.

Visual environment perhaps translucent flow lines? unnecessary.

Should browser tools run index automatically. Write.

Now browser inspect screenshot.

Looks good. Should verify samples several moments coordinated and triangles. Screenshot after time perhaps motion. Use motion tool perhaps returns frames.

Great coordinated. Should pointer actions and pause resume screenshot. Use drag center perhaps creates ring and movement.

Clearly repelled. Pause click.

Should compare freeze screenshot after perhaps motion will show unchanged except ring absent due pointer leave and fps perhaps not. motion screenshot.

Resume click and reset and perhaps resize can't browser viewport direct. Could inspect resize by JS impossible tool only interactions no execute. I can reason. Perhaps issue pointer capture: pointerdown canvas.setPointerCapture then pointerleave won't fire while capture until up; after mouse up capture released and pointer active at current point. pointerleave eventually when control hover. okay. Pause when pointer active draw ring but simulation frozen state? pointer moves alter pointer and rendering not boid state. "Pause freezes simulation state" yes. Reset pointer active can repel immediately but fresh okay.

Could test resume.

Then screenshot later ensure moves. Reset click 660.

All good. Should have final concise mention checked and unverified resizing? I didn't test actual resizing. Requirement addendum says report which unverified. Could say checked multi-frame, cursor, pause/resume reset, console clean. Resizing logic implemented but viewport resize not exercised. Fine. But perhaps need no remaining unverified? It's okay. Respond.