1/*
2 * Copyright (c) 2009-2010 jMonkeyEngine
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31 */
32package jme3test.bullet;
33
34import com.jme3.app.SimpleApplication;
35import com.jme3.bullet.BulletAppState;
36import com.jme3.bullet.PhysicsSpace;
37import com.jme3.bullet.collision.shapes.BoxCollisionShape;
38import com.jme3.bullet.collision.shapes.SphereCollisionShape;
39import com.jme3.bullet.control.GhostControl;
40import com.jme3.bullet.control.PhysicsControl;
41import com.jme3.bullet.control.RigidBodyControl;
42import com.jme3.bullet.joints.HingeJoint;
43import com.jme3.input.KeyInput;
44import com.jme3.input.controls.AnalogListener;
45import com.jme3.input.controls.KeyTrigger;
46import com.jme3.math.Vector3f;
47import com.jme3.scene.Node;
48
49/**
50 * Tests attaching ghost nodes to physicsnodes via the scenegraph
51 * @author normenhansen
52 */
53public class TestAttachGhostObject extends SimpleApplication implements AnalogListener {
54
55    private HingeJoint joint;
56    private GhostControl ghostControl;
57    private Node collisionNode;
58    private Node hammerNode;
59    private Vector3f tempVec = new Vector3f();
60    private BulletAppState bulletAppState;
61
62    public static void main(String[] args) {
63        TestAttachGhostObject app = new TestAttachGhostObject();
64        app.start();
65    }
66
67    private void setupKeys() {
68        inputManager.addMapping("Lefts", new KeyTrigger(KeyInput.KEY_H));
69        inputManager.addMapping("Rights", new KeyTrigger(KeyInput.KEY_K));
70        inputManager.addMapping("Space", new KeyTrigger(KeyInput.KEY_SPACE));
71        inputManager.addListener(this, "Lefts", "Rights", "Space");
72    }
73
74    public void onAnalog(String binding, float value, float tpf) {
75        if (binding.equals("Lefts")) {
76            joint.enableMotor(true, 1, .1f);
77        } else if (binding.equals("Rights")) {
78            joint.enableMotor(true, -1, .1f);
79        } else if (binding.equals("Space")) {
80            joint.enableMotor(false, 0, 0);
81        }
82    }
83
84    @Override
85    public void simpleInitApp() {
86        bulletAppState = new BulletAppState();
87        stateManager.attach(bulletAppState);
88        bulletAppState.getPhysicsSpace().enableDebug(assetManager);
89        setupKeys();
90        setupJoint();
91    }
92
93    private PhysicsSpace getPhysicsSpace() {
94        return bulletAppState.getPhysicsSpace();
95    }
96
97    public void setupJoint() {
98        Node holderNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.1f, .1f, .1f)), 0);
99        holderNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, 0, 0f));
100        rootNode.attachChild(holderNode);
101        getPhysicsSpace().add(holderNode);
102
103        Node hammerNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 1);
104        hammerNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -1, 0f));
105        rootNode.attachChild(hammerNode);
106        getPhysicsSpace().add(hammerNode);
107
108        //immovable
109        collisionNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 0);
110        collisionNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(1.8f, 0, 0f));
111        rootNode.attachChild(collisionNode);
112        getPhysicsSpace().add(collisionNode);
113
114        //ghost node
115        ghostControl = new GhostControl(new SphereCollisionShape(0.7f));
116
117        hammerNode.addControl(ghostControl);
118        getPhysicsSpace().add(ghostControl);
119
120        joint = new HingeJoint(holderNode.getControl(RigidBodyControl.class), hammerNode.getControl(RigidBodyControl.class), Vector3f.ZERO, new Vector3f(0f, -1, 0f), Vector3f.UNIT_Z, Vector3f.UNIT_Z);
121        getPhysicsSpace().add(joint);
122    }
123
124    @Override
125    public void simpleUpdate(float tpf) {
126        if (ghostControl.getOverlappingObjects().contains(collisionNode.getControl(PhysicsControl.class))) {
127            fpsText.setText("collide");
128        }
129    }
130}
131