b2RayCastCallback Class Reference

#include <b2_world_callbacks.h>

Inheritance diagram for b2RayCastCallback:

Public Member Functions
virtual float	ReportFixture (b2Fixture *fixture, const b2Vec2 &point, const b2Vec2 &normal, float fraction)=0
virtual	~b2RayCastCallback ()

Detailed Description

Callback class for ray casts. See b2World::RayCast

Definition at line 140 of file b2_world_callbacks.h.

Constructor & Destructor Documentation

~b2RayCastCallback()

virtual b2RayCastCallback::~b2RayCastCallback ( )

inlinevirtual

Definition at line 143 of file b2_world_callbacks.h.

Member Function Documentation

ReportFixture()

virtual float b2RayCastCallback::ReportFixture ( b2Fixture *  fixture, const b2Vec2 &  point, const b2Vec2 &  normal, float  fraction  )

pure virtual

Called for each fixture found in the query. You control how the ray cast proceeds by returning a float: return -1: ignore this fixture and continue return 0: terminate the ray cast return fraction: clip the ray to this point return 1: don't clip the ray and continue

Parameters

fixture	the fixture hit by the ray
point	the point of initial intersection
normal	the normal vector at the point of intersection
fraction	the fraction along the ray at the point of intersection

Returns

-1 to filter, 0 to terminate, fraction to clip the ray for closest hit, 1 to continue

Implemented in RayCastMultipleCallback, RayCastAnyCallback, RayCastClosestCallback, and EdgeShapesCallback.

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The documentation for this class was generated from the following file:

• b2_world_callbacks.h