org.xith3d.physics.collision
Class Collision

java.lang.Object
  org.xith3d.physics.collision.Collision

public class Collision
extends java.lang.Object

Information about a collision : position, normal, depth, geoms that collided

Constructor Summary

protected	Collision() Creates a new collision information object.
	Collision(org.openmali.vecmath2.Point3f pos, org.openmali.vecmath2.Vector3f normal, float depth, Collideable c1, Collideable c2) Creates a new collision information object.

Method Summary

static Collision	fromPool()
static Collision	fromPool(org.openmali.vecmath2.Point3f pos, org.openmali.vecmath2.Vector3f normal, float depth, Collideable c1, Collideable c2)
Collideable	getCollideable1() The first collideable involved in the collision
Collideable	getCollideable2() The second collideable involved in the collision
float	getDepth() The penetration depth of the collision.
org.openmali.vecmath2.Vector3f	getInvertedNormal() The "direction" of this collision.
org.openmali.vecmath2.Vector3f	getNormal() The "direction" of this collision.
org.openmali.vecmath2.Point3f	getPosition() The position of the contact.
org.openmali.vecmath2.Vector3f	getScaledInvertedNormal() The "direction" of this collision.
org.openmali.vecmath2.Vector3f	getScaledNormal() The "direction" of this collision.
protected void	set(org.openmali.vecmath2.Point3f pos, org.openmali.vecmath2.Vector3f normal, float depth, Collideable c1, Collideable c2) Sets this instance's a information.
static void	toPool(Collision collision)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

Collision

public Collision(org.openmali.vecmath2.Point3f pos,
                 org.openmali.vecmath2.Vector3f normal,
                 float depth,
                 Collideable c1,
                 Collideable c2)

Creates a new collision information object.

Parameters:

pos - contact position

normal - normal vector

depth - penetration depth

c1 - the colliding object n°1

c2 - the colliding object n°2

Collision

protected Collision()

Creates a new collision information object.

Method Detail

getCollideable1

public final Collideable getCollideable1()

The first collideable involved in the collision

getCollideable2

public final Collideable getCollideable2()

The second collideable involved in the collision

getPosition

public final org.openmali.vecmath2.Point3f getPosition()

The position of the contact. Of course, more than a point may be in contact (between Collideables), but we need an approximation for computations.

getNormal

public final org.openmali.vecmath2.Vector3f getNormal()

The "direction" of this collision. It's a vector normal to the collision. In other terms, it's a vector such that if you move the second collideable by the (normal * depth) vector, it no longer collides with the first collideable.

getScaledNormal

public final org.openmali.vecmath2.Vector3f getScaledNormal()

The "direction" of this collision. It's a vector normal to the collision scaled by the depth of the collision.

getInvertedNormal

public final org.openmali.vecmath2.Vector3f getInvertedNormal()

The "direction" of this collision. It's an inverted vector normal to the collision.

getScaledInvertedNormal

public final org.openmali.vecmath2.Vector3f getScaledInvertedNormal()

The "direction" of this collision. It's a vector normal to the collision scaled by the depth of the collision and inverted.

getDepth

public final float getDepth()

The penetration depth of the collision. If it just grazes, depth = 0.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

set

protected final void set(org.openmali.vecmath2.Point3f pos,
                         org.openmali.vecmath2.Vector3f normal,
                         float depth,
                         Collideable c1,
                         Collideable c2)

Sets this instance's a information.

Parameters:

pos - contact position

normal - normal vector

depth - penetration depth

c1 - the colliding object n°1

c2 - the colliding object n°2

fromPool

public static final Collision fromPool(org.openmali.vecmath2.Point3f pos,
                                       org.openmali.vecmath2.Vector3f normal,
                                       float depth,
                                       Collideable c1,
                                       Collideable c2)

fromPool

public static final Collision fromPool()

toPool

public static final void toPool(Collision collision)