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
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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
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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
33package jme3test.bullet;
34
35import com.jme3.app.Application;
36import com.jme3.app.SimpleApplication;
37import com.jme3.bullet.BulletAppState;
38import com.jme3.bullet.PhysicsSpace;
39import com.jme3.bullet.collision.shapes.BoxCollisionShape;
40import com.jme3.bullet.collision.shapes.CollisionShape;
41import com.jme3.bullet.control.GhostControl;
42import com.jme3.bullet.control.RigidBodyControl;
43import com.jme3.math.Vector3f;
44import com.jme3.scene.Node;
45import com.jme3.scene.shape.Box;
46
47/**
48 *
49 * @author tim8dev [at] gmail [dot com]
50 */
51public class TestGhostObject extends SimpleApplication {
52
53    private BulletAppState bulletAppState;
54    private GhostControl ghostControl;
55
56    public static void main(String[] args) {
57        Application app = new TestGhostObject();
58        app.start();
59    }
60
61    @Override
62    public void simpleInitApp() {
63        bulletAppState = new BulletAppState();
64        stateManager.attach(bulletAppState);
65        bulletAppState.getPhysicsSpace().enableDebug(assetManager);
66
67        // Mesh to be shared across several boxes.
68        Box boxGeom = new Box(Vector3f.ZERO, 1f, 1f, 1f);
69        // CollisionShape to be shared across several boxes.
70        CollisionShape shape = new BoxCollisionShape(new Vector3f(1, 1, 1));
71
72        Node physicsBox = PhysicsTestHelper.createPhysicsTestNode(assetManager, shape, 1);
73        physicsBox.setName("box0");
74        physicsBox.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(.6f, 4, .5f));
75        rootNode.attachChild(physicsBox);
76        getPhysicsSpace().add(physicsBox);
77
78        Node physicsBox1 = PhysicsTestHelper.createPhysicsTestNode(assetManager, shape, 1);
79        physicsBox1.setName("box1");
80        physicsBox1.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0, 40, 0));
81        rootNode.attachChild(physicsBox1);
82        getPhysicsSpace().add(physicsBox1);
83
84        Node physicsBox2 = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(1, 1, 1)), 1);
85        physicsBox2.setName("box0");
86        physicsBox2.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(.5f, 80, -.8f));
87        rootNode.attachChild(physicsBox2);
88        getPhysicsSpace().add(physicsBox2);
89
90        // the floor, does not move (mass=0)
91        Node node = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(100, 1, 100)), 0);
92        node.setName("floor");
93        node.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -6, 0f));
94        rootNode.attachChild(node);
95        getPhysicsSpace().add(node);
96
97        initGhostObject();
98    }
99
100    private PhysicsSpace getPhysicsSpace(){
101        return bulletAppState.getPhysicsSpace();
102    }
103
104    private void initGhostObject() {
105        Vector3f halfExtents = new Vector3f(3, 4.2f, 1);
106        ghostControl = new GhostControl(new BoxCollisionShape(halfExtents));
107        Node node=new Node("Ghost Object");
108        node.addControl(ghostControl);
109        rootNode.attachChild(node);
110        getPhysicsSpace().add(ghostControl);
111    }
112
113    @Override
114    public void simpleUpdate(float tpf) {
115        fpsText.setText("Overlapping objects: " + ghostControl.getOverlappingObjects().toString());
116    }
117}
118