com.jme3.bullet.control.RigidBodyControl Java Examples

public void setupJoint() {
    Node holderNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.1f, .1f, .1f)), 0);
    holderNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, 0, 0f));
    rootNode.attachChild(holderNode);
    getPhysicsSpace().add(holderNode);

    Node hammerNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 1);
    hammerNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -1, 0f));
    rootNode.attachChild(hammerNode);
    getPhysicsSpace().add(hammerNode);

    //immovable
    collisionNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 0);
    collisionNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(1.8f, 0, 0f));
    rootNode.attachChild(collisionNode);
    getPhysicsSpace().add(collisionNode);

    //ghost node
    ghostControl = new GhostControl(new SphereCollisionShape(0.7f));

    hammerNode.addControl(ghostControl);
    getPhysicsSpace().add(ghostControl);

    joint = new HingeJoint(holderNode.getControl(RigidBodyControl.class), hammerNode.getControl(RigidBodyControl.class), Vector3f.ZERO, new Vector3f(0f, -1, 0f), Vector3f.UNIT_Z, Vector3f.UNIT_Z);
    getPhysicsSpace().add(joint);
}
 

private Geometry getRandomBall(Vector3f location) {
    Vector3f localLocation = new Vector3f();
    localLocation.set(location);
    localLocation.addLocal(new Vector3f(random.nextFloat() - 0.5f, random.nextFloat() - 0.5f, random.nextFloat() - 0.5f).normalize().mult(3));
    Geometry poiGeom = new Geometry("ball", ballMesh);
    poiGeom.setLocalTranslation(localLocation);
    poiGeom.setMaterial(ballMaterial);
    RigidBodyControl control = new RigidBodyControl(ballCollisionShape, 1);
    //!!! Important
    control.setApplyPhysicsLocal(true);
    poiGeom.addControl(control);
    float x = (random.nextFloat() - 0.5f) * 100;
    float y = (random.nextFloat() - 0.5f) * 100;
    float z = (random.nextFloat() - 0.5f) * 100;
    control.setLinearVelocity(new Vector3f(x, y, z));
    return poiGeom;
}
 

/**
 * Add all collision objects and joints in the specified subtree of the
 * scene graph to this space (e.g. after loading from disk). Note:
 * recursive!
 *
 * @param spatial the root of the subtree (not null)
 */
public void addAll(Spatial spatial) {
    add(spatial);

    if (spatial.getControl(RigidBodyControl.class) != null) {
        RigidBodyControl physicsNode = spatial.getControl(RigidBodyControl.class);
        //add joints with physicsNode as BodyA
        List<PhysicsJoint> joints = physicsNode.getJoints();
        for (Iterator<PhysicsJoint> it1 = joints.iterator(); it1.hasNext();) {
            PhysicsJoint physicsJoint = it1.next();
            if (physicsNode.equals(physicsJoint.getBodyA())) {
                //add(physicsJoint.getBodyB());
                add(physicsJoint);
            }
        }
    }
    //recursion
    if (spatial instanceof Node) {
        List<Spatial> children = ((Node) spatial).getChildren();
        for (Iterator<Spatial> it = children.iterator(); it.hasNext();) {
            Spatial spat = it.next();
            addAll(spat);
        }
    }
}
 

/**
 * Removes all physics controls and joints in the given spatial from the physics space
 * (e.g. before saving to disk) - recursive if node
 * @param spatial the rootnode containing the physics objects
 */
public void removeAll(Spatial spatial) {
    if (spatial.getControl(RigidBodyControl.class) != null) {
        RigidBodyControl physicsNode = spatial.getControl(RigidBodyControl.class);
        //remove joints with physicsNode as BodyA
        List<PhysicsJoint> joints = physicsNode.getJoints();
        for (Iterator<PhysicsJoint> it1 = joints.iterator(); it1.hasNext();) {
            PhysicsJoint physicsJoint = it1.next();
            if (physicsNode.equals(physicsJoint.getBodyA())) {
                removeJoint(physicsJoint);
                //remove(physicsJoint.getBodyB());
            }
        }
    }
    
    remove(spatial);
    //recursion
    if (spatial instanceof Node) {
        List<Spatial> children = ((Node) spatial).getChildren();
        for (Iterator<Spatial> it = children.iterator(); it.hasNext();) {
            Spatial spat = it.next();
            removeAll(spat);
        }
    }
}
 

/** This method creates one individual physical cannon ball.
 * By defaul, the ball is accelerated and flies
 * from the camera position in the camera direction.*/
 public void makeCannonBall() {
  /** Create a cannon ball geometry and attach to scene graph. */
  Geometry ball_geo = new Geometry("cannon ball", sphere);
  ball_geo.setMaterial(stone_mat);
  rootNode.attachChild(ball_geo);
  /** Position the cannon ball  */
  ball_geo.setLocalTranslation(cam.getLocation());
  /** Make the ball physical with a mass > 0.0f */
  ball_phy = new RigidBodyControl(1f);
  /** Add physical ball to physics space. */
  ball_geo.addControl(ball_phy);
  bulletAppState.getPhysicsSpace().add(ball_phy);
  /** Accelerate the physical ball to shoot it. */
  ball_phy.setLinearVelocity(cam.getDirection().mult(25));
}
 

/**
 * Remove all physics controls and joints in the specified subtree of the
 * scene graph from the physics space (e.g. before saving to disk) Note:
 * recursive!
 *
 * @param spatial the root of the subtree (not null)
 */
public void removeAll(Spatial spatial) {
    if (spatial.getControl(RigidBodyControl.class) != null) {
        RigidBodyControl physicsNode = spatial.getControl(RigidBodyControl.class);
        //remove joints with physicsNode as BodyA
        List<PhysicsJoint> joints = physicsNode.getJoints();
        for (Iterator<PhysicsJoint> it1 = joints.iterator(); it1.hasNext();) {
            PhysicsJoint physicsJoint = it1.next();
            if (physicsNode.equals(physicsJoint.getBodyA())) {
                removeJoint(physicsJoint);
                //remove(physicsJoint.getBodyB());
            }
        }
    }
        
    remove(spatial);
    //recursion
    if (spatial instanceof Node) {
        List<Spatial> children = ((Node) spatial).getChildren();
        for (Iterator<Spatial> it = children.iterator(); it.hasNext();) {
            Spatial spat = it.next();
            removeAll(spat);
        }
    }
}
 

private void initializeNewTest() {
    bulletAppState = new BulletAppState();
    bulletAppState.setDebugEnabled(physicsDebug);
    stateManager.attach(bulletAppState);

    bulletAppState.setSpeed(bulletSpeed);

    dropTest();

    Geometry leftFloor = PhysicsTestHelper.createMeshTestFloor(assetManager, 20, new Vector3f(-11, -5, -10));
    addObject(leftFloor);

    //Hide physics debug visualization for floors
    if (physicsDebug) {
        BulletDebugAppState bulletDebugAppState = stateManager.getState(BulletDebugAppState.class);
        bulletDebugAppState.setFilter((Object obj) -> {
            return !(obj.equals(leftFloor.getControl(RigidBodyControl.class)));
        });
    }
}
 

private RigidBodyControl drop(Vector3f offset, String model, float scale, float mass) {
    scale *= scaleMod;
    Node n = (Node) assetManager.loadModel(model);
    n.setLocalTranslation(offset);
    n.rotate(0, 0, -FastMath.HALF_PI);

    Geometry tp = ((Geometry) n.getChild(0));
    tp.scale(scale);
    Material mat = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
    tp.setMaterial(mat);

    Mesh mesh = tp.getMesh();
    GImpactCollisionShape shape = new GImpactCollisionShape(mesh);
    shape.setScale(new Vector3f(scale, scale, scale));

    RigidBodyControl control = new RigidBodyControl(shape, mass);
    n.addControl(control);
    addObject(n);
    return control;
}
 

@Override
public void simpleInitApp() {
    stateManager.attach(bulletAppState);
    initCrossHair();

    Spatial s = assetManager.loadModel("Models/Elephant/Elephant.mesh.xml");
    s.setLocalScale(0.1f);

    CollisionShape collisionShape = CollisionShapeFactory.createMeshShape(s);
    Node n = new Node("elephant");
    n.addControl(new RigidBodyControl(collisionShape, 1));
    n.getControl(RigidBodyControl.class).setKinematic(true);
    bulletAppState.getPhysicsSpace().add(n);
    rootNode.attachChild(n);
    bulletAppState.setDebugEnabled(true);
}
 

public void setupFloor() {
    Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    TextureKey key = new TextureKey("Interface/Logo/Monkey.jpg", true);
    key.setGenerateMips(true);
    Texture tex = assetManager.loadTexture(key);
    tex.setMinFilter(Texture.MinFilter.Trilinear);
    mat.setTexture("ColorMap", tex);

    Box floor = new Box(100, 1f, 100);
    Geometry floorGeom = new Geometry("Floor", floor);
    floorGeom.setMaterial(mat);
    floorGeom.setLocalTranslation(new Vector3f(0f, -3, 0f));

    floorGeom.addControl(new RigidBodyControl(new MeshCollisionShape(floorGeom.getMesh()), 0));
    rootNode.attachChild(floorGeom);
    getPhysicsSpace().add(floorGeom);
}
 

@Override
        public void onAction(String name, boolean keyPressed, float tpf) {
            if (name.equals("shoot") && !keyPressed) {
                Geometry bulletg = new Geometry("bullet", bullet);
                bulletg.setMaterial(mat2);
                bulletg.setShadowMode(ShadowMode.CastAndReceive);
                bulletg.setLocalTranslation(cam.getLocation());
                
                SphereCollisionShape bulletCollisionShape = new SphereCollisionShape(0.4f);
                RigidBodyControl bulletNode = new BombControl(assetManager, bulletCollisionShape, 1);
//                RigidBodyControl bulletNode = new RigidBodyControl(bulletCollisionShape, 1);
                bulletNode.setLinearVelocity(cam.getDirection().mult(25));
                bulletg.addControl(bulletNode);
                rootNode.attachChild(bulletg);
                getPhysicsSpace().add(bulletNode);
            }
            if (name.equals("gc") && !keyPressed) {
                System.gc();
            }
        }
 

/** This method creates one individual physical cannon ball.
 * By defaul, the ball is accelerated and flies
 * from the camera position in the camera direction.*/
 public void makeCannonBall() {
  /** Create a cannon ball geometry and attach to scene graph. */
  Geometry ball_geo = new Geometry("cannon ball", sphere);
  ball_geo.setMaterial(stone_mat);
  rootNode.attachChild(ball_geo);
  /** Position the cannon ball  */
  ball_geo.setLocalTranslation(cam.getLocation());
  /** Make the ball physcial with a mass > 0.0f */
  ball_phy = new RigidBodyControl(1f);
  /** Add physical ball to physics space. */
  ball_geo.addControl(ball_phy);
  bulletAppState.getPhysicsSpace().add(ball_phy);
  /** Accelerate the physcial ball to shoot it. */
  ball_phy.setLinearVelocity(cam.getDirection().mult(25));
}
 

public void setupJoint() {
    Node holderNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.1f, .1f, .1f)), 0);
    holderNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, 0, 0f));
    rootNode.attachChild(holderNode);
    getPhysicsSpace().add(holderNode);

    Node hammerNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 1);
    hammerNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -1, 0f));
    rootNode.attachChild(hammerNode);
    getPhysicsSpace().add(hammerNode);

    //immovable
    collisionNode = PhysicsTestHelper.createPhysicsTestNode(assetManager, new BoxCollisionShape(new Vector3f(.3f, .3f, .3f)), 0);
    collisionNode.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(1.8f, 0, 0f));
    rootNode.attachChild(collisionNode);
    getPhysicsSpace().add(collisionNode);

    //ghost node
    ghostControl = new GhostControl(new SphereCollisionShape(0.7f));

    hammerNode.addControl(ghostControl);
    getPhysicsSpace().add(ghostControl);

    joint = new HingeJoint(holderNode.getControl(RigidBodyControl.class), hammerNode.getControl(RigidBodyControl.class), Vector3f.ZERO, new Vector3f(0f, -1, 0f), Vector3f.UNIT_Z, Vector3f.UNIT_Z);
    getPhysicsSpace().add(joint);
}
 

public void onAction(String name, boolean keyPressed, float tpf) {
            if (name.equals("shoot") && !keyPressed) {
                Geometry bulletg = new Geometry("bullet", bullet);
                bulletg.setMaterial(mat2);
                bulletg.setShadowMode(ShadowMode.CastAndReceive);
                bulletg.setLocalTranslation(cam.getLocation());
                
                SphereCollisionShape bulletCollisionShape = new SphereCollisionShape(0.4f);
                RigidBodyControl bulletNode = new BombControl(assetManager, bulletCollisionShape, 1);
//                RigidBodyControl bulletNode = new RigidBodyControl(bulletCollisionShape, 1);
                bulletNode.setLinearVelocity(cam.getDirection().mult(25));
                bulletg.addControl(bulletNode);
                rootNode.attachChild(bulletg);
                getPhysicsSpace().add(bulletNode);
            }
            if (name.equals("gc") && !keyPressed) {
                System.gc();
            }
        }
 

protected void attachPhysicsSelection(Spatial geom) {
    PhysicsCollisionObject control = geom.getControl(RigidBodyControl.class);
    if (control == null) {
        control = geom.getControl(VehicleControl.class);
    }
    if (control == null) {
        control = geom.getControl(GhostControl.class);
    }
    if (control == null) {
        control = geom.getControl(CharacterControl.class);
    }
    if (control == null) {
        return;
    }
    Spatial selectionGeometry = DebugShapeFactory.getDebugShape(control.getCollisionShape());
    if (selectionGeometry != null) {
        selectionGeometry.setMaterial(blueMat);
        selectionGeometry.setLocalTransform(geom.getWorldTransform());
        toolsNode.attachChild(selectionGeometry);
        selectionShape = selectionGeometry;
    }
}
 

public void addBrick(Vector3f ori) {
    Geometry reBoxg = new Geometry("brick", brick);
    reBoxg.setMaterial(mat);
    reBoxg.setLocalTranslation(ori);
    reBoxg.rotate(0f, (float)Math.toRadians(angle) , 0f );
    reBoxg.addControl(new RigidBodyControl(1.5f));
    reBoxg.setShadowMode(ShadowMode.CastAndReceive);
    reBoxg.getControl(RigidBodyControl.class).setFriction(1.6f);
    this.rootNode.attachChild(reBoxg);
    this.getPhysicsSpace().add(reBoxg);
}
 

public void initFloor() {
    Box floorBox = new Box(10f, 0.1f, 5f);
    floorBox.scaleTextureCoordinates(new Vector2f(3, 6));

    Geometry floor = new Geometry("floor", floorBox);
    floor.setMaterial(mat3);
    floor.setShadowMode(ShadowMode.Receive);
    floor.setLocalTranslation(0, 0, 0);
    floor.addControl(new RigidBodyControl(0));
    this.rootNode.attachChild(floor);
    this.getPhysicsSpace().add(floor);
}
 

private Node createLimb(float width, float height, Vector3f location, boolean rotate) {
    int axis = rotate ? PhysicsSpace.AXIS_X : PhysicsSpace.AXIS_Y;
    CapsuleCollisionShape shape = new CapsuleCollisionShape(width, height, axis);
    Node node = new Node("Limb");
    RigidBodyControl rigidBodyControl = new RigidBodyControl(shape, 1);
    node.setLocalTranslation(location);
    node.addControl(rigidBodyControl);
    return node;
}
 

/**
 * creates a sphere geometry with a RigidBodyControl
 * @param assetManager
 * @return
 */
public static Geometry createPhysicsTestSphere(AssetManager assetManager) {
    Material material = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    material.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));
    Sphere sphere = new Sphere(8, 8, 0.25f);
    Geometry boxGeometry = new Geometry("Sphere", sphere);
    boxGeometry.setMaterial(material);
    //RigidBodyControl automatically uses sphere collision shapes when attached to single geometry with sphere mesh
    boxGeometry.addControl(new RigidBodyControl(2));
    return boxGeometry;
}
 

public void addBrick(Vector3f ori) {
    Geometry reBoxg = new Geometry("brick", brick);
    reBoxg.setMaterial(mat);
    reBoxg.setLocalTranslation(ori);
    reBoxg.rotate(0f, (float)Math.toRadians(angle) , 0f );
    reBoxg.addControl(new RigidBodyControl(1.5f));
    reBoxg.setShadowMode(ShadowMode.CastAndReceive);
    reBoxg.getControl(RigidBodyControl.class).setFriction(1.6f);
    this.batchNode.attachChild(reBoxg);
    this.getPhysicsSpace().add(reBoxg);
    nbBrick++;
}
 

public void addBrick(Vector3f ori) {

        Geometry reBoxg = new Geometry("brick", brick);
        reBoxg.setMaterial(mat);
        reBoxg.setLocalTranslation(ori);
        //for geometry with sphere mesh the physics system automatically uses a sphere collision shape
        reBoxg.addControl(new RigidBodyControl(1.5f));
        reBoxg.setShadowMode(ShadowMode.CastAndReceive);
        reBoxg.getControl(RigidBodyControl.class).setFriction(0.6f);
        this.rootNode.attachChild(reBoxg);
        this.getPhysicsSpace().add(reBoxg);
    }
 

public void initFloor() {
    Box floorBox = new Box(10f, 0.1f, 5f);
    floorBox.scaleTextureCoordinates(new Vector2f(3, 6));

    Geometry floor = new Geometry("floor", floorBox);
    floor.setMaterial(mat3);
    floor.setShadowMode(ShadowMode.Receive);
    floor.setLocalTranslation(0, 0, 0);
    floor.addControl(new RigidBodyControl(0));
    this.rootNode.attachChild(floor);
    this.getPhysicsSpace().add(floor);
}
 

/**
 * creates a box geometry with a RigidBodyControl
 *
 * @param assetManager for loading assets
 * @return a new Geometry
 */
public static Geometry createPhysicsTestBox(AssetManager assetManager) {
    Material material = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    material.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));
    Box box = new Box(0.25f, 0.25f, 0.25f);
    Geometry boxGeometry = new Geometry("Box", box);
    boxGeometry.setMaterial(material);
    //RigidBodyControl automatically uses box collision shapes when attached to single geometry with box mesh
    boxGeometry.addControl(new RigidBodyControl(2));
    return boxGeometry;
}
 

@Override
protected Sheet createSheet() {
    Sheet sheet = super.createSheet();
    Sheet.Set set = Sheet.createPropertiesSet();
    set.setDisplayName("RigidBodyControl");
    set.setName(RigidBodyControl.class.getName());
    RigidBodyControl obj = geom;//getLookup().lookup(Spatial.class);
    if (obj == null) {
        return sheet;
    }

    set.put(makeProperty(obj, Vector3f.class, "getPhysicsLocation", "setPhysicsLocation", "Physics Location"));
    set.put(makeProperty(obj, Quaternion.class, "getPhysicsRotation", "setPhysicsRotation", "Physics Rotation"));

    set.put(makeProperty(obj, CollisionShape.class, "getCollisionShape", "setCollisionShape", "Collision Shape"));
    set.put(makeProperty(obj, int.class, "getCollisionGroup", "setCollisionGroup", "Collision Group"));
    set.put(makeProperty(obj, int.class, "getCollideWithGroups", "setCollideWithGroups", "Collide With Groups"));
    
    set.put(makeProperty(obj, float.class, "getFriction", "setFriction", "Friction"));
    set.put(makeProperty(obj, float.class, "getMass", "setMass", "Mass"));
    set.put(makeProperty(obj, boolean.class, "isKinematic", "setKinematic", "Kinematic"));
    set.put(makeProperty(obj, Vector3f.class, "getGravity", "setGravity", "Gravity"));
    set.put(makeProperty(obj, float.class, "getLinearDamping", "setLinearDamping", "Linear Damping"));
    set.put(makeProperty(obj, float.class, "getAngularDamping", "setAngularDamping", "Angular Damping"));
    set.put(makeProperty(obj, float.class, "getRestitution", "setRestitution", "Restitution"));

    set.put(makeProperty(obj, float.class, "getLinearSleepingThreshold", "setLinearSleepingThreshold", "Linear Sleeping Threshold"));
    set.put(makeProperty(obj, float.class, "getAngularSleepingThreshold", "setAngularSleepingThreshold", "Angular Sleeping Threshold"));

    sheet.put(set);
    return sheet;

}
 

public void addBrick(Vector3f ori) {
    Geometry reBoxg = new Geometry("brick", brick);
    reBoxg.setMaterial(mat);
    reBoxg.setLocalTranslation(ori);
    reBoxg.rotate(0f, (float)Math.toRadians(angle) , 0f );
    reBoxg.addControl(new RigidBodyControl(1.5f));
    reBoxg.setShadowMode(ShadowMode.CastAndReceive);
    reBoxg.getControl(RigidBodyControl.class).setFriction(1.6f);
    this.batchNode.attachChild(reBoxg);
    this.getPhysicsSpace().add(reBoxg);
    nbBrick++;
}
 

/**
 * Add 3x3 terrain to the scene and the PhysicsSpace.
 */
private void addTerrain() {
    int patchSize = 3;
    int mapSize = 3;
    TerrainQuad quad
            = new TerrainQuad("terrain", patchSize, mapSize, nineHeights);
    rootNode.attachChild(quad);
    quad.setMaterial(quadMaterial);

    CollisionShape shape = CollisionShapeFactory.createMeshShape(quad);
    float massForStatic = 0f;
    RigidBodyControl rbc = new RigidBodyControl(shape, massForStatic);
    rbc.setPhysicsSpace(physicsSpace);
    quad.addControl(rbc);
}
 

Node createTestNode(float mass, Vector3f location) {
    float size = 0.1f;
    Vector3f halfExtents = new Vector3f(size, size, size);
    CollisionShape shape = new BoxCollisionShape(halfExtents);
    RigidBodyControl control = new RigidBodyControl(shape, mass);
    Node node = new Node();
    node.addControl(control);
    rootNode.attachChild(node);
    bulletAppState.getPhysicsSpace().add(node);
    control.setPhysicsLocation(location);

    return node;
}
 

@Override
public void onAction(String string, boolean bln, float tpf) {
    if ("Pull ragdoll up".equals(string)) {
        if (bln) {
            shoulders.getControl(RigidBodyControl.class).activate();
            applyForce = true;
        } else {
            applyForce = false;
        }
    }
}
 

private void attachTestObject(Mesh mesh, Vector3f position, float mass) {
    Material material = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    material.setTexture("ColorMap", assetManager.loadTexture("Interface/Logo/Monkey.jpg"));
    Geometry g = new Geometry("mesh", mesh);
    g.scale(scaleMod);
    g.setLocalTranslation(position);
    g.setMaterial(material);

    GImpactCollisionShape shape = new GImpactCollisionShape(mesh);
    shape.setScale(new Vector3f(scaleMod, scaleMod, scaleMod));
    RigidBodyControl control = new RigidBodyControl(shape, mass);
    g.addControl(control);
    addObject(g);
}
 

public void initWall(float bLength, float bWidth, float bHeight) {
    Box brick = new Box(Vector3f.ZERO, bLength, bHeight, bWidth);
    brick.scaleTextureCoordinates(new Vector2f(1f, .5f));
    Material mat2 = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md");
    TextureKey key = new TextureKey("Textures/Terrain/BrickWall/BrickWall.jpg");
    key.setGenerateMips(true);
    Texture tex = assetManager.loadTexture(key);
    mat2.setTexture("ColorMap", tex);
    
    float startpt = bLength / 4;
    float height = -5;
    for (int j = 0; j < 15; j++) {
        for (int i = 0; i < 4; i++) {
            Vector3f ori = new Vector3f(i * bLength * 2 + startpt, bHeight + height, -10);
            Geometry reBoxg = new Geometry("brick", brick);
            reBoxg.setMaterial(mat2);
            reBoxg.setLocalTranslation(ori);
            //for geometry with sphere mesh the physics system automatically uses a sphere collision shape
            reBoxg.addControl(new RigidBodyControl(1.5f));
            reBoxg.setShadowMode(ShadowMode.CastAndReceive);
            reBoxg.getControl(RigidBodyControl.class).setFriction(0.6f);
            this.rootNode.attachChild(reBoxg);
            this.getPhysicsSpace().add(reBoxg);
        }
        startpt = -startpt;
        height += 2 * bHeight;
    }
}