Physics · interface

SweptStepOptions

Explained in Your first game, Rigid bodies.

interface SweptStepOptions

import type { SweptStepOptions } from '@driftengine/physics';

Properties

Name	Type	Description
`stepHeight`optional	`number`	How high a lip may be and still be stepped over.
`grazeM`optional	`number`	How much of a shortfall counts as a graze rather than a wall, for a body in the air, metres. More A facet seam is a few centimetres and mid-flight is exactly where one is most likely to be clipped in passing rather than run into. A genuine wall does not pass it: hit one square and the move is near zero regardless of how small it was.
`propFootprintM`optional	`number`	How wide something has to be before it is scenery rather than a post, metres. More A deck's own geometry spans most of a cross-section by construction, metres in at least one direction; a lamp post is fourteen centimetres. The width test alone tells them apart, and it is what keeps the vouched retry from walking a body through a real obstacle.
`facetClearM`optional	`number`	How much exploratory lift a vouched retry is worth where the surface reports no rise.
`riseSlackM`optional	`number`	A rise smaller than this is not a rise. Matches whatever the consumer's own snap ignores.
`wallNormalMin`optional	`number`	The least horizontal contact normal that counts as a wall. More Below it the contact is a floor or a ceiling, and redirecting horizontal motion along one of those would let a body climb.
`slipAccel`optional	`number`	How hard a body slides off something it is merely perched on, metres per second squared.
`slipNudge`optional	`number`	The speed a slip starts at, so it is not defeated by a body pressing into the contact.
`slipBlockedM`optional	`number`	How little movement counts as a slip having achieved nothing, metres.
`stepGraceSec`optional	`number`	How long after a step up a rim is still treated as a plateau rather than a wall, seconds.