Examples of com.jme3.scene.Spatial

com.jme3.scene.Spatial
Spatial defines the base class for scene graph nodes. It maintains a link to a parent, it's local transforms and the world's transforms. All other scene graph elements, such as {@link Node} and{@link Geometry} are subclasses of Spatial. @author Mark Powell @author Joshua Slack @version $Revision: 4075 $, $Data$

     */
    public void remove(Object obj) {
        if (obj instanceof PhysicsControl) {
            ((PhysicsControl) obj).setPhysicsSpace(null);
        } else if (obj instanceof Spatial) {
            Spatial node = (Spatial) obj;
            PhysicsControl control = node.getControl(PhysicsControl.class);
            control.setPhysicsSpace(null);
        } else if (obj instanceof PhysicsCollisionObject) {
            removeCollisionObject((PhysicsCollisionObject) obj);
        } else if (obj instanceof PhysicsJoint) {
            removeJoint((PhysicsJoint) obj);

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        }
        //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);
            }
        }
    }

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        }
        //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);
            }
        }
    }

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     * Caches the transforms (except rotation) so the LOD calculator,
     * which runs on a separate thread, can access them safely.
     */
    protected void cacheTerrainTransforms() {
        for (int i = children.size(); --i >= 0;) {
            Spatial child = children.get(i);
            if (child instanceof TerrainQuad) {
                ((TerrainQuad) child).cacheTerrainTransforms();
            } else if (child instanceof TerrainPatch) {
                ((TerrainPatch) child).cacheTerrainTransforms();
            }

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                progressMonitor.setMonitorMax(numCalc*numCalc);
            }


        if (children != null) {
            for (int i = children.size(); --i >= 0;) {
                Spatial child = children.get(i);
                if (child instanceof TerrainQuad) {
                        ((TerrainQuad) child).generateEntropy(progressMonitor);
                } else if (child instanceof TerrainPatch) {
                    ((TerrainPatch) child).generateLodEntropies();
                    if (progressMonitor != null)

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    public Material getMaterial(Vector3f worldLocation) {
        // get the material from one of the children. They all share the same material
        if (children != null) {
            for (int i = children.size(); --i >= 0;) {
                Spatial child = children.get(i);
                if (child instanceof TerrainQuad) {
                    return ((TerrainQuad)child).getMaterial(worldLocation);
                } else if (child instanceof TerrainPatch) {
                    return ((TerrainPatch)child).getMaterial();
                }

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        boolean lodChanged = false;


        if (children != null) {
            for (int i = children.size(); --i >= 0;) {
                Spatial child = children.get(i);
                if (child instanceof TerrainQuad) {
                    boolean b = ((TerrainQuad) child).calculateLod(location, updates, lodCalculator);
                    if (b)
                        lodChanged = true;
                } else if (child instanceof TerrainPatch) {

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    }


    protected synchronized void findNeighboursLod(HashMap<String,UpdatedTerrainPatch> updated) {
        if (children != null) {
            for (int x = children.size(); --x >= 0;) {
                Spatial child = children.get(x);
                if (child instanceof TerrainQuad) {
                    ((TerrainQuad) child).findNeighboursLod(updated);
                } else if (child instanceof TerrainPatch) {


                    TerrainPatch patch = (TerrainPatch) child;

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     * Sometimes you might want to reset this cache (for instance in TerrainGrid)
     */
    public void resetCachedNeighbours() {
        if (children != null) {
            for (int x = children.size(); --x >= 0;) {
                Spatial child = children.get(x);
                if (child instanceof TerrainQuad) {
                    ((TerrainQuad) child).resetCachedNeighbours();
                } else if (child instanceof TerrainPatch) {
                    TerrainPatch patch = (TerrainPatch) child;
                    patch.searchedForNeighboursAlready = false;

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     * changed its LOD to a greater value (less detailed)
     */
    protected synchronized void fixEdges(HashMap<String,UpdatedTerrainPatch> updated) {
        if (children != null) {
            for (int x = children.size(); --x >= 0;) {
                Spatial child = children.get(x);
                if (child instanceof TerrainQuad) {
                    ((TerrainQuad) child).fixEdges(updated);
                } else if (child instanceof TerrainPatch) {
                    TerrainPatch patch = (TerrainPatch) child;
                    UpdatedTerrainPatch utp = updated.get(patch.getName());

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