com.badlogic.gdx.physics.box2d

Interface RayCastCallback

public interface RayCastCallback

Callback class for ray casts.

Author:

mzechner

See Also:

World.rayCast(RayCastCallback, Vector2, Vector2)

Method Summary

Modifier and Type	Method and Description
float	reportRayFixture(Fixture fixture, Vector2 point, Vector2 normal, float fraction) Called for each fixture found in the query.

Method Detail

reportRayFixture

float reportRayFixture(Fixture fixture,
                       Vector2 point,
                       Vector2 normal,
                       float fraction)

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. The Vector2 instances passed to the callback will be reused for future calls so make a copy of them!

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