com.threerings.opengl.model
Class CollisionMesh

java.lang.Object
  com.threerings.opengl.model.CollisionMesh

All Implemented Interfaces:

Exportable

public class CollisionMesh
extends Object
implements Exportable

A mesh used for collision detection.

Nested Class Summary

protected static class	CollisionMesh.CenterComparator Compares triangles based on one of the coordinates of their centers.
protected static class	CollisionMesh.InternalNode An internal node containing two children.
protected static class	CollisionMesh.LeafNode A leaf node containing a single triangle.
protected static class	CollisionMesh.Node A node in the axis-aligned bounding box tree.

Field Summary

protected CollisionMesh.Node

_root The root node of the AABB tree.

Constructor Summary

CollisionMesh()
No-arg constructor for deserialization.

CollisionMesh(Vector3f... vertices)
Creates the mesh from an array of vertices, where each set of three vertices represents a triangle.

Method Summary

protected static CollisionMesh.Node	createNode(Triangle[] triangles) Creates a node to hold the given array of triangles.
Box	getBounds() Returns a reference to the bounds of the mesh.
boolean	getIntersection(Ray3D ray, Vector3f result) Finds the intersection of the given ray with this mesh and places it in the supplied result object.

Methods inherited from class java.lang.Object

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

Field Detail

_root

protected CollisionMesh.Node _root

The root node of the AABB tree.

Constructor Detail

CollisionMesh

public CollisionMesh(Vector3f... vertices)

Creates the mesh from an array of vertices, where each set of three vertices represents a triangle.

CollisionMesh

public CollisionMesh()

No-arg constructor for deserialization.

Method Detail

getBounds

public Box getBounds()

Returns a reference to the bounds of the mesh.

getIntersection

public boolean getIntersection(Ray3D ray,
                               Vector3f result)

Finds the intersection of the given ray with this mesh and places it in the supplied result object.

Returns:

true if the ray hit the mesh, in which case the result will be placed in the object supplied.

createNode

protected static CollisionMesh.Node createNode(Triangle[] triangles)

Creates a node to hold the given array of triangles.