Example to show character model cloning / export

jme3-core/src/plugins/java/com/jme3/export/binary/BinaryExporter.java

@@ -31,6 +31,7 @@
  */
 package com.jme3.export.binary;
 
+import com.jme3.asset.AssetManager;
 import com.jme3.export.FormatVersion;
 import com.jme3.export.JmeExporter;
 import com.jme3.export.Savable;
@@ -167,6 +168,31 @@ public class BinaryExporter implements JmeExporter {
     public static BinaryExporter getInstance() {
         return new BinaryExporter();
     }
+    
+    /**
+     * Saves the object into memory then loads it from memory.
+     * 
+     * Used by tests to check if the persistence system is working.
+     * 
+     * @param <T> The type of savable.
+     * @param assetManager AssetManager to load assets from.
+     * @param object The object to save and then load.
+     * @return A new instance that has been saved and loaded from the 
+     * original object.
+     */
+    public static <T extends Savable> T saveAndLoad(AssetManager assetManager, T object) {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        try {
+            BinaryExporter exporter = new BinaryExporter();
+            exporter.save(object, baos);
+            BinaryImporter importer = new BinaryImporter();
+            importer.setAssetManager(assetManager);
+            return (T) importer.load(baos.toByteArray());
+        } catch (IOException ex) {
+            // Should never happen.
+            throw new AssertionError(ex);
+        }
+    }
 
     public void save(Savable object, OutputStream os) throws IOException {
         // reset some vars

jme3-examples/src/main/java/jme3test/effect/TestParticleExportingCloning.java

@@ -69,26 +69,9 @@ public class TestParticleExportingCloning extends SimpleApplication {
         rootNode.attachChild(emit);
         rootNode.attachChild(emit2);
         
-        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        ParticleEmitter emit3 = BinaryExporter.saveAndLoad(assetManager, emit);
-        try {
+        emit3.move(-3, 0, 0);
-            BinaryExporter.getInstance().save(emit, out);
+        rootNode.attachChild(emit3);
-            
-            BinaryImporter imp = new BinaryImporter();
-            imp.setAssetManager(assetManager);
-            ParticleEmitter emit3 = (ParticleEmitter) imp.load(out.toByteArray());
-            
-            emit3.move(-3, 0, 0);
-            rootNode.attachChild(emit3);
-        } catch (IOException ex) {
-            ex.printStackTrace();
-        }
-
-            //        Camera cam2 = cam.clone();
-    //        cam.setViewPortTop(0.5f);
-    //        cam2.setViewPortBottom(0.5f);
-    //        ViewPort vp = renderManager.createMainView("SecondView", cam2);
-    //        viewPort.setClearEnabled(false);
-    //        vp.attachScene(rootNode);
     }
 
 }

jme3-examples/src/main/java/jme3test/model/anim/TestModelExportingCloning.java

@@ -0,0 +1,83 @@
+/*
+ * Copyright (c) 2009-2015 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ *   may be used to endorse or promote products derived from this software
+ *   without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package jme3test.model.anim;
+
+import com.jme3.animation.AnimChannel;
+import com.jme3.animation.AnimControl;
+import com.jme3.app.SimpleApplication;
+import com.jme3.export.binary.BinaryExporter;
+import com.jme3.light.DirectionalLight;
+import com.jme3.math.ColorRGBA;
+import com.jme3.math.Vector3f;
+import com.jme3.scene.Spatial;
+
+public class TestModelExportingCloning extends SimpleApplication {
+    
+    public static void main(String[] args) {
+        TestModelExportingCloning app = new TestModelExportingCloning();
+        app.start();
+    }
+
+    @Override
+    public void simpleInitApp() {
+        cam.setLocation(new Vector3f(10f, 3f, 40f));
+        cam.lookAtDirection(Vector3f.UNIT_Z.negate(), Vector3f.UNIT_Y);
+
+        DirectionalLight dl = new DirectionalLight();
+        dl.setDirection(new Vector3f(-0.1f, -0.7f, -1).normalizeLocal());
+        dl.setColor(new ColorRGBA(1f, 1f, 1f, 1.0f));
+        rootNode.addLight(dl);
+
+        AnimControl control;
+        AnimChannel channel;
+        
+        Spatial originalModel = assetManager.loadModel("Models/Oto/Oto.mesh.xml");
+        control = originalModel.getControl(AnimControl.class);
+        channel = control.createChannel();
+        channel.setAnim("Walk");
+        rootNode.attachChild(originalModel);
+        
+        Spatial clonedModel = originalModel.clone();
+        clonedModel.move(10, 0, 0);
+        control = clonedModel.getControl(AnimControl.class);
+        channel = control.createChannel();
+        channel.setAnim("push");
+        rootNode.attachChild(clonedModel);
+        
+        Spatial exportedModel = BinaryExporter.saveAndLoad(assetManager, originalModel);
+        exportedModel.move(20, 0, 0);
+        control = exportedModel.getControl(AnimControl.class);
+        channel = control.createChannel();
+        channel.setAnim("pull");
+        rootNode.attachChild(exportedModel);
+    }
+}