Contact

Access to contacts. More...

Data Structures
struct	b2ContactData
	The contact data for two shapes. More...

Functions
bool	b2Contact_IsValid (b2ContactId id)
	Contact identifier validation. Provides validation for up to 2^32 allocations.
b2ContactData	b2Contact_GetData (b2ContactId contactId)
	Get the data for a contact. The manifold may have no points if the contact is not touching.

Detailed Description

Access to contacts.

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Data Structure Documentation

b2ContactData

struct b2ContactData

The contact data for two shapes.

By convention the manifold normal points from shape A to shape B.

See also

b2Shape_GetContactData() and b2Body_GetContactData()

Data Fields
b2ContactId	contactId	The contact id. You may hold onto this to track a contact across time steps. This id may become orphaned. Use b2Contact_IsValid before using it for other functions.
b2Manifold	manifold	The manifold copied from the contact.
b2ShapeId	shapeIdA	The first shape id.
b2ShapeId	shapeIdB	The second shape id.