/*
* Phys2D - a 2D physics engine based on the work of Erin Catto. The
* original source remains:
*
* Copyright (c) 2006 Erin Catto http://www.gphysics.com
*
* This source is provided under the terms of the BSD License.
*
* Copyright (c) 2006, Phys2D
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above
* copyright notice, this list of conditions and the
* following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of the Phys2D/New Dawn Software nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*/
package net.phys2d.raw;
import net.phys2d.raw.collide.Collider;
import net.phys2d.raw.collide.ColliderFactory;
import net.phys2d.raw.collide.ColliderUnavailableException;
/**
* A static utility for resolve the collision between shapes
*
* TODO: make this nonstatic to allow a user to provide his/her own factory
*
* @author Kevin Glass
*/
public strictfp class Collide {
/** The factory that provides us with colliders */
private static ColliderFactory collFactory = new ColliderFactory();
/**
* Perform the collision between two bodies
*
* @param contacts The points of contact that should be populated
* @param bodyA The first body
* @param bodyB The second body
* @param dt The amount of time that's passed since we last checked collision
* @return The number of points at which the two bodies contact
*/
public static int collide(Contact[] contacts, Body bodyA, Body bodyB, float dt)
{
Collider collider;
try {
collider = collFactory.createCollider(bodyA, bodyB);
} catch (ColliderUnavailableException e) {
System.out.println(e.getMessage()
+ "\n Ignoring any possible collision between the bodies in question");
return 0;
}
return collider.collide(contacts, bodyA, bodyB);
}
}