heightSurface

function heightSurface(heightAt: HeightField | readonly HeightField[], options?: HeightSurfaceOptions): GroundSurface

import { heightSurface } from '@driftengine/physics';

Parameters

In depth

Several is how a road passes under a road. A single field has exactly one height per column, and no arrangement of it holds both a deck and the carriageway beneath it; two fields do, and the surface picks the one under the body's feet using the height every caller already passes. Order carries no meaning — the rule is nearness to the asker, not position in the list.

Each layer answers NaN where it is not there, so a deck is a floor over its span and nothing at all beside it.