#include <b2Collision.h>
Public Attributes | |
| b2ContactID | id |
| uniquely identifies a contact point between two shapes More... | |
| b2Vec2 | localPoint |
| usage depends on manifold type More... | |
| float32 | normalImpulse |
| the non-penetration impulse More... | |
| float32 | tangentImpulse |
| the friction impulse More... | |
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.
Definition at line 69 of file b2Collision.h.
| b2ContactID b2ManifoldPoint::id |
uniquely identifies a contact point between two shapes
Definition at line 74 of file b2Collision.h.
| b2Vec2 b2ManifoldPoint::localPoint |
usage depends on manifold type
Definition at line 71 of file b2Collision.h.
| float32 b2ManifoldPoint::normalImpulse |
the non-penetration impulse
Definition at line 72 of file b2Collision.h.
| float32 b2ManifoldPoint::tangentImpulse |
the friction impulse
Definition at line 73 of file b2Collision.h.