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Public Member Functions | Public Attributes | List of all members
b2DistanceProxy Struct Reference

`#include <b2Distance.h>`

## Public Member Functions
| b2DistanceProxy ()
void | Set (const b2Shape *shape, int32 index)
int32 | GetSupport (const b2Vec2 &d) const
| Get the supporting vertex index in the given direction. More...
const b2Vec2 & | GetSupportVertex (const b2Vec2 &d) const
| Get the supporting vertex in the given direction. More...
int32 | GetVertexCount () const
| Get the vertex count. More...
const b2Vec2 & | GetVertex (int32 index) const
| Get a vertex by index. Used by b2Distance. More...

## Public Attributes
b2Vec2 | m_buffer [2]
const b2Vec2 * | m_vertices
int32 | m_count
float32 | m_radius

## Detailed Description

A distance proxy is used by the GJK algorithm. It encapsulates any shape.

## Constructor & Destructor Documentation

b2DistanceProxy | ( |  | ) |
| inline

## Member Function Documentation

int32 GetSupport | ( | const b2Vec2 & | d | ) | const
| inline

Get the supporting vertex index in the given direction.

const b2Vec2 & GetSupportVertex | ( | const b2Vec2 & | d | ) | const
| inline

Get the supporting vertex in the given direction.

const b2Vec2 & GetVertex | ( | int32 | index | ) | const
| inline

Get a vertex by index. Used by b2Distance.

int32 GetVertexCount | ( |  | ) | const
| inline

Get the vertex count.

void Set | ( | const b2Shape * | shape,
|  | int32 | index
| ) |  |

Initialize the proxy using the given shape. The shape must remain in scope while the proxy is in use.

## Member Data Documentation

b2Vec2 m_buffer[2]

int32 m_count

float32 m_radius

const b2Vec2* m_vertices

The documentation for this struct was generated from the following files:

- Box2D/Collision/b2Distance.h
- Box2D/Collision/b2Distance.cpp