| Box2D 2.4.1
    A 2D physics engine for games | 
#include <b2_collision.h>
| Public Types | |
| enum | Type { e_circles , e_faceA , e_faceB } | 
| Public Attributes | |
| b2ManifoldPoint | points [b2_maxManifoldPoints] | 
| the points of contact | |
| b2Vec2 | localNormal | 
| not use for Type::e_points | |
| b2Vec2 | localPoint | 
| usage depends on manifold type | |
| Type | type | 
| int32 | pointCount | 
| the number of manifold points | |
A manifold for two touching convex shapes. Box2D supports multiple types of contact: