| /* |
| * Copyright (c) 2009-2010 jMonkeyEngine |
| * 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 'jMonkeyEngine' 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 com.jme3.collision; |
| |
| import com.jme3.math.Triangle; |
| import com.jme3.math.Vector3f; |
| import com.jme3.scene.Geometry; |
| import com.jme3.scene.Mesh; |
| |
| /** |
| * A <code>CollisionResult</code> represents a single collision instance |
| * between two {@link Collidable}. A collision check can result in many |
| * collision instances (places where collision has occured). |
| * |
| * @author Kirill Vainer |
| */ |
| public class CollisionResult implements Comparable<CollisionResult> { |
| |
| private Geometry geometry; |
| private Vector3f contactPoint; |
| private Vector3f contactNormal; |
| private float distance; |
| private int triangleIndex; |
| |
| public CollisionResult(Geometry geometry, Vector3f contactPoint, float distance, int triangleIndex) { |
| this.geometry = geometry; |
| this.contactPoint = contactPoint; |
| this.distance = distance; |
| this.triangleIndex = triangleIndex; |
| } |
| |
| public CollisionResult(Vector3f contactPoint, float distance) { |
| this.contactPoint = contactPoint; |
| this.distance = distance; |
| } |
| |
| public CollisionResult(){ |
| } |
| |
| public void setGeometry(Geometry geom){ |
| this.geometry = geom; |
| } |
| |
| public void setContactNormal(Vector3f norm){ |
| this.contactNormal = norm; |
| } |
| |
| public void setContactPoint(Vector3f point){ |
| this.contactPoint = point; |
| } |
| |
| public void setDistance(float dist){ |
| this.distance = dist; |
| } |
| |
| public void setTriangleIndex(int index){ |
| this.triangleIndex = index; |
| } |
| |
| public Triangle getTriangle(Triangle store){ |
| if (store == null) |
| store = new Triangle(); |
| |
| Mesh m = geometry.getMesh(); |
| m.getTriangle(triangleIndex, store); |
| store.calculateCenter(); |
| store.calculateNormal(); |
| return store; |
| } |
| |
| public int compareTo(CollisionResult other) { |
| if (distance < other.distance) |
| return -1; |
| else if (distance > other.distance) |
| return 1; |
| else |
| return 0; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if(obj instanceof CollisionResult){ |
| return ((CollisionResult)obj).compareTo(this) == 0; |
| } |
| return super.equals(obj); |
| } |
| |
| public Vector3f getContactPoint() { |
| return contactPoint; |
| } |
| |
| public Vector3f getContactNormal() { |
| return contactNormal; |
| } |
| |
| public float getDistance() { |
| return distance; |
| } |
| |
| public Geometry getGeometry() { |
| return geometry; |
| } |
| |
| public int getTriangleIndex() { |
| return triangleIndex; |
| } |
| |
| } |