Primary Grid Compositions
Equilibrium Engine
neoplastic grid with spring-driven lines; primary color blocks recolor every 2s; a center-of-mass dot tracks the weighted area of colored cells.
canvasmedium complexitymoderate motion
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Worth keeping?
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When to use it
Ambient backgrounds or art-themed hero sections needing calm geometric motion. Museum, gallery, or design portfolio contexts.
When not to
Dark-background layouts — background is hardcoded cream. Contexts where constant grid rebalancing distracts from foreground content.
Working with an AI agent
Every component ships agent-ready metadata. An example instruction for this one:
Change line thickness from 7 to 10 (TH constant), add a 4th vertical spring with spring(.6), and shift yellow accent to #FFD700. 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
- line thickness (TH=7)
- spring stiffness (k=0.06) and damping (damp=0.78)
- retarget interval (2200ms)
- vertical/horizontal spring count (vx/hx arrays)
- primary color palette (PRIMARIES array)
- theme tokens (:root dark defaults + [data-theme=light] overrides)
Keep intact
- IIFE wrapper
- prefers-reduced-motion guard (REDUCED flag + static draw loop)
- visibilitychange pause/resume
- DPR-aware fitCanvas
- theme hook (?theme= bootstrap + forever:theme message listener + theme tokens)
Known limitations
- Background color hardcoded in both CSS and C.white — must change both to retheme
- Block recoloring is instant (no interpolation), causing sudden color switches on rebalance
More Primary Grid Compositions components
- The Rebalancing Gridneoplastic grid of black lines slides to new layouts while red, blue, and yellow cells fade in, resolving into a balanced composition every few seconds.
- Broadway Boogie WoogieColored squares pulse along yellow grid avenues like NYC traffic; intersection dots blink in red, blue, and yellow referencing neoplastic's 1943 painting.
- Self-Assembling Compositionneoplastic grid builds itself every 4 s: cells scale in staggered, black lines draw outward, primary colors fill random regions, then recomposes anew.
- Trading WeightRed and blue blocks trade mass across a fixed axis; a yellow counterweight keeps the neoplastic grid balanced. Slow eased transitions reseed randomly.
- Self-Painting CellsA fixed asymmetric neoplastic grid whose cells autonomously cycle through red, blue, and yellow with smooth CSS transitions, like an unattended painter at…
- Victory Boogie MarqueeA 9x9 neoplastic grid rotated 45° as a diamond; red, blue, and yellow squares ripple diagonally in a boogie-woogie march via time-stepped index.