b2RayCastCallback Class Reference

#include <b2WorldCallbacks.h>

List of all members.

Public Member Functions
virtual	~b2RayCastCallback ()
virtual float32	ReportFixture (b2Fixture *fixture, const b2Vec2 &point, const b2Vec2 &normal, float32 fraction)=0

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Detailed Description

Callback class for ray casts. See b2World::RayCast

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Constructor & Destructor Documentation

virtual b2RayCastCallback::~b2RayCastCallback

(

)

[inline, virtual]

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Member Function Documentation

virtual float32 b2RayCastCallback::ReportFixture	(	b2Fixture *	fixture,
		const b2Vec2 &	point,
		const b2Vec2 &	normal,
		float32	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

Returns:

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

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

• Box2D/Box2D/Dynamics/b2WorldCallbacks.h