Type Alias GravityFalloff

GravityFalloff:
    | "inverse-square"
    | "inverse"
    | "constant"
    | ((distance: number) => number)

Falloff law for RadialGravityField.

"inverse-square" — F = strength / d² (Newtonian gravity, default)
"inverse" — F = strength / d (line-source gravity)
"constant" — F = strength (constant pull regardless of distance)
(distance) => number — custom multiplier, applied as F = strength * fn(d)