∞ forever components

Cursor & Pointer

Trail Comet

Hot-pink comet spring-follows the cursor, dragging a tapering additive trail that lengthens with speed and flings spark particles. Idle: Lissajous demo loop.

canvasmedium complexitymoderate motionpointer

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When to use it

Dark-background hero sections, creative portfolios, cursor-effect showcases where a premium tactile feel is needed.

When not to

Light backgrounds (hardcoded dark fill). Forms or text-heavy layouts where a custom cursor competes with reading.

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change comet color to cyan: replace all 'rgba(255,92,168,...)' with 'rgba(0,234,255,...)' and update the hot-core stop from rgba(255,210,235,...) to rgba(200,255,255,...). Theme: dark tokens live in :root, the light variant in :root[data-theme="light"]; ?theme=light or a {type:'forever:theme'} postMessage switches at runtime.

Safe to edit

  • comet color (rgba(255,92,168,...))
  • trail max length (MAX=110)
  • spring stiffness (k=0.22 real / 0.14 demo)
  • trail taper width multiplier (5.2)
  • speed-to-length scale factor (sp*4.2)
  • theme tokens (:root dark defaults + [data-theme=light] overrides)

Keep intact

  • DPR-aware canvas sizing + setTransform
  • visibilitychange pause/resume
  • reduced-motion still() fallback
  • IIFE wrapper
  • theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)

Known limitations

  • Background hardcoded to #0a0a0f — change both CSS and ctx.fillStyle to use on light pages
  • Reduced-motion renders one static frame, no pointer interactivity

comettrailspringcanvaspointeradditive-blendparticles

More Cursor & Pointer components

  • Magnetic DotGlowing pink dot springs to the pointer; a laggy outer ring squashes along its travel, joined by a fading tendril. Self-demos via Lissajous path when idle.
  • Gooey Trail22 pink blobs chain-follow the pointer via spring physics and merge into liquid goo through an SVG feColorMatrix filter; auto-demos a Lissajous path when…
  • Spotlight MaskRadial spotlight follows the pointer, punching through a dark veil to reveal a pink dot grid and glowing word. Auto-demos via Lissajous path when idle.
  • Elastic RingGlowing pink ring trails the pointer with damped-spring physics, stretching along velocity and squashing across it. Auto-demos on a Lissajous path when idle.
  • Ripple FieldGrid of dots ripples outward in expanding pink rings as the pointer moves; dots displace radially along each wavefront. Lissajous auto-demo when idle.