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      1 /*
      2  * Copyright (c) 2009-2010 jMonkeyEngine
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  * * Redistributions of source code must retain the above copyright
     10  *   notice, this list of conditions and the following disclaimer.
     11  *
     12  * * Redistributions in binary form must reproduce the above copyright
     13  *   notice, this list of conditions and the following disclaimer in the
     14  *   documentation and/or other materials provided with the distribution.
     15  *
     16  * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
     17  *   may be used to endorse or promote products derived from this software
     18  *   without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 package jme3test.bullet;
     33 
     34 import com.jme3.app.SimpleApplication;
     35 import com.jme3.bullet.BulletAppState;
     36 import com.jme3.bullet.PhysicsSpace;
     37 import com.jme3.bullet.collision.shapes.*;
     38 import com.jme3.bullet.control.RigidBodyControl;
     39 import com.jme3.math.Plane;
     40 import com.jme3.math.Vector3f;
     41 import com.jme3.scene.Node;
     42 import com.jme3.scene.shape.Sphere;
     43 
     44 /**
     45  * This is a basic Test of jbullet-jme functions
     46  *
     47  * @author normenhansen
     48  */
     49 public class TestSimplePhysics extends SimpleApplication {
     50 
     51     private BulletAppState bulletAppState;
     52 
     53     public static void main(String[] args) {
     54         TestSimplePhysics app = new TestSimplePhysics();
     55         app.start();
     56     }
     57 
     58     @Override
     59     public void simpleInitApp() {
     60         bulletAppState = new BulletAppState();
     61         stateManager.attach(bulletAppState);
     62         bulletAppState.getPhysicsSpace().enableDebug(assetManager);
     63 
     64         // Add a physics sphere to the world
     65         Node physicsSphere = PhysicsTestHelper.createPhysicsTestNode(assetManager, new SphereCollisionShape(1), 1);
     66         physicsSphere.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(3, 6, 0));
     67         rootNode.attachChild(physicsSphere);
     68         getPhysicsSpace().add(physicsSphere);
     69 
     70         // Add a physics sphere to the world using the collision shape from sphere one
     71         Node physicsSphere2 = PhysicsTestHelper.createPhysicsTestNode(assetManager, physicsSphere.getControl(RigidBodyControl.class).getCollisionShape(), 1);
     72         physicsSphere2.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(4, 8, 0));
     73         rootNode.attachChild(physicsSphere2);
     74         getPhysicsSpace().add(physicsSphere2);
     75 
     76         // Add a physics box to the world
     77         Node physicsBox = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(1, 1, 1)), 1);
     78         physicsBox.getControl(RigidBodyControl.class).setFriction(0.1f);
     79         physicsBox.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(.6f, 4, .5f));
     80         rootNode.attachChild(physicsBox);
     81         getPhysicsSpace().add(physicsBox);
     82 
     83         // Add a physics cylinder to the world
     84         Node physicsCylinder = PhysicsTestHelper.createPhysicsTestNode(assetManager, new CylinderCollisionShape(new Vector3f(1f, 1f, 1.5f)), 1);
     85         physicsCylinder.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(2, 2, 0));
     86         rootNode.attachChild(physicsCylinder);
     87         getPhysicsSpace().add(physicsCylinder);
     88 
     89         // an obstacle mesh, does not move (mass=0)
     90         Node node2 = PhysicsTestHelper.createPhysicsTestNode(assetManager, new MeshCollisionShape(new Sphere(16, 16, 1.2f)), 0);
     91         node2.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(2.5f, -4, 0f));
     92         rootNode.attachChild(node2);
     93         getPhysicsSpace().add(node2);
     94 
     95         // the floor mesh, does not move (mass=0)
     96         Node node3 = PhysicsTestHelper.createPhysicsTestNode(assetManager, new PlaneCollisionShape(new Plane(new Vector3f(0, 1, 0), 0)), 0);
     97         node3.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -6, 0f));
     98         rootNode.attachChild(node3);
     99         getPhysicsSpace().add(node3);
    100 
    101         // Join the physics objects with a Point2Point joint
    102 //        PhysicsPoint2PointJoint joint=new PhysicsPoint2PointJoint(physicsSphere, physicsBox, new Vector3f(-2,0,0), new Vector3f(2,0,0));
    103 //        PhysicsHingeJoint joint=new PhysicsHingeJoint(physicsSphere, physicsBox, new Vector3f(-2,0,0), new Vector3f(2,0,0), Vector3f.UNIT_Z,Vector3f.UNIT_Z);
    104 //        getPhysicsSpace().add(joint);
    105 
    106     }
    107 
    108     private PhysicsSpace getPhysicsSpace() {
    109         return bulletAppState.getPhysicsSpace();
    110     }
    111 }
    112