ContactConstraints

class ContactConstraints

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

Constructor

constructor(capacity?: number)

Parameter	Type	Description
`capacity?`	`number`

Name	Type	Description
`count`	`number`	One entry per manifold.
`bodyA`	`Int32Array`
`bodyB`	`Int32Array`
`nx`	`Float32Array`
`ny`	`Float32Array`
`nz`	`Float32Array`
`t1x`	`Float32Array`
`t1y`	`Float32Array`
`t1z`	`Float32Array`
`t2x`	`Float32Array`
`t2y`	`Float32Array`
`t2z`	`Float32Array`
`friction`	`Float32Array`
`restitution`	`Float32Array`
`pointStart`	`Int32Array`
`pointCount`	`Int32Array`
`points`	`number`	One entry per contact point.
`localA`	`Float32Array`
`localB`	`Float32Array`
`sBase`	`Float32Array`
`normalMass`	`Float32Array`
`tangent1Mass`	`Float32Array`
`tangent2Mass`	`Float32Array`
`normalImpulse`	`Float32Array`
`tangent1Impulse`	`Float32Array`
`tangent2Impulse`	`Float32Array`
`approach`	`Float32Array`	Approach speed when the constraint was prepared, which is what restitution answers to.
`featureId`	`Int32Array`
`curvedA`	`Uint8Array`	Whether each side's anchor sits on a curved surface, one byte per point. More A curved anchor is held in world frame rather than in the body's, for the reason `Manifold` states at length: the point where a ball touches the floor does not turn with the ball, and an anchor that turns anyway climbs its side and reports a gap that is not there. Per point rather than per manifold so `worldAnchors` needs only the point index, which is all its callers have.
`curvedB`	`Uint8Array`

clear(): void

reserve(pointsNeeded: number): void

Parameter	Type	Description
`pointsNeeded`	`number`