Module com.marginallyclever.robotoverlord

Package com.marginallyclever.ro3.raypicking

Class RayPickSystem

java.lang.Object

com.marginallyclever.ro3.raypicking.RayPickSystem

public class RayPickSystem
extends Object

A system for finding the nearest MeshInstance that collides with a ray.

Constructor Summary

Constructors

Constructor	Description
RayPickSystem()

Method Summary

Modifier and Type	Method	Description
List<RayHit>	findRayIntersections(Ray ray)	Traverse the scene Nodes and find all the MeshInstances that collide with the ray.
RayHit	getFirstHit(Ray ray)	Traverse the scene Entities and find the nearest MeshInstance that collides with the ray.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

RayPickSystem

public RayPickSystem()

Method Details

getFirstHit

public RayHit getFirstHit(Ray ray)

Traverse the scene Entities and find the nearest MeshInstance that collides with the ray. This computes all intersections and then sorts them by distance, so it is a good idea to keey the ray length short.

Parameters:

ray - the ray to test.

Returns:

the nearest RayHit by the ray, or null if no entity was hit.

findRayIntersections

public List<RayHit> findRayIntersections(Ray ray)

Traverse the scene Nodes and find all the MeshInstances that collide with the ray.

Parameters:

ray - the ray to test.

Returns:

all RayHit by the ray. It may be an empty list.