Class b2ManifoldPoint

A manifold point is a contact point belonging to a contact manifold. It holds details related to the geometry and dynamics of the contact points. The local point usage depends on the manifold type: -e_circles: the local center of circleB -e_faceA: the local center of cirlceB or the clip point of polygonB -e_faceB: the clip point of polygonA This structure is stored across time steps, so we keep it small. Note: the impulses are used for internal caching and may not provide reliable contact forces, especially for high speed collisions.

Index

Constructor methods

Properties

Methods

Constructor methods

constructor(): b2ManifoldPoint

Creates a new manifold point.

Returns

b2ManifoldPoint

Properties

public m_id: b2ContactID

Contact ID.

public m_localpoint: b2Vec2

Local contact point.

public m_normalImpulse: number

Normal impluse for this contact point.

public m_tangentImpulse: number

Tangent impulse for contact point.

Methods

public Reset()

Resets this manifold point.

public Set(m: b2ManifoldPoint)

Sets this manifold point from a manifold point.

Parameters