Box2D  2.4.0
A 2D physics engine for games
b2RayCastCallback Class Referenceabstract

#include <b2_world_callbacks.h>

Public Member Functions

virtual float ReportFixture (b2Fixture *fixture, const b2Vec2 &point, const b2Vec2 &normal, float fraction)=0
 

Detailed Description

Callback class for ray casts. See b2World::RayCast

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
fixturethe fixture hit by the ray
pointthe point of initial intersection
normalthe normal vector at the point of intersection
fractionthe 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

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