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jMonkeyEngine is a 3-D game engine for adventurous Java developers
/*
* Copyright (c) 2009-2021 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
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package com.jme3.scene.plugins.fbx.obj;
import com.jme3.asset.AssetManager;
import com.jme3.scene.plugins.fbx.anim.FbxAnimCurve;
import com.jme3.scene.plugins.fbx.anim.FbxAnimCurveNode;
import com.jme3.scene.plugins.fbx.anim.FbxAnimLayer;
import com.jme3.scene.plugins.fbx.anim.FbxAnimStack;
import com.jme3.scene.plugins.fbx.anim.FbxBindPose;
import com.jme3.scene.plugins.fbx.anim.FbxCluster;
import com.jme3.scene.plugins.fbx.anim.FbxLimbNode;
import com.jme3.scene.plugins.fbx.anim.FbxSkinDeformer;
import com.jme3.scene.plugins.fbx.file.FbxElement;
import com.jme3.scene.plugins.fbx.material.FbxImage;
import com.jme3.scene.plugins.fbx.material.FbxMaterial;
import com.jme3.scene.plugins.fbx.material.FbxTexture;
import com.jme3.scene.plugins.fbx.mesh.FbxMesh;
import com.jme3.scene.plugins.fbx.node.FbxNode;
import com.jme3.scene.plugins.fbx.node.FbxNullAttribute;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
import java.util.logging.Level;
import java.util.logging.Logger;
/**
* Responsible for producing FBX objects given an FBXElement.
*/
public final class FbxObjectFactory {
private static final Logger logger = Logger.getLogger(FbxObjectFactory.class.getName());
/**
* A private constructor to inhibit instantiation of this class.
*/
private FbxObjectFactory() {
}
private static Class getImplementingClass(String elementName, String subclassName) {
if (elementName.equals("NodeAttribute")) {
if (subclassName.equals("Root")) {
// Root of skeleton, may not actually be set.
return FbxNullAttribute.class;
} else if (subclassName.equals("LimbNode")) {
// Specifies some limb attributes, optional.
return FbxNullAttribute.class;
} else if (subclassName.equals("Null")) {
// An "Empty" or "Node" without any specific behavior.
return FbxNullAttribute.class;
} else if (subclassName.equals("IKEffector") ||
subclassName.equals("FKEffector")) {
// jME3 does not support IK.
return FbxNullAttribute.class;
} else if (subclassName.equals("Light")) {
// TODO: support lights
return FbxNullAttribute.class;
} else if (subclassName.equals("Camera")) {
// TODO: support cameras
return FbxNullAttribute.class;
} else {
// NodeAttribute - Unknown
logger.log(Level.WARNING, "Unknown object subclass: {0}. Ignoring.", subclassName);
return FbxUnknownObject.class;
}
} else if (elementName.equals("Geometry") && subclassName.equals("Mesh")) {
// NodeAttribute - Mesh Data
return FbxMesh.class;
} else if (elementName.equals("Model")) {
// Scene Graph Node
// Determine specific subclass (e.g. Mesh, Null, or LimbNode?)
if (subclassName.equals("LimbNode")) {
return FbxLimbNode.class; // Child Bone of Skeleton?
} else {
return FbxNode.class;
}
} else if (elementName.equals("Pose")) {
if (subclassName.equals("BindPose")) {
// Bind Pose Information
return FbxBindPose.class;
} else {
// Rest Pose Information
// OR
// Other Data (???)
logger.log(Level.WARNING, "Unknown object subclass: {0}. Ignoring.", subclassName);
return FbxUnknownObject.class;
}
} else if (elementName.equals("Material")) {
return FbxMaterial.class;
} else if (elementName.equals("Deformer")) {
// Deformer
if (subclassName.equals("Skin")) {
// FBXSkinDeformer (mapping between FBXMesh & FBXClusters)
return FbxSkinDeformer.class;
} else if (subclassName.equals("Cluster")) {
// Cluster (aka mapping between FBXMesh vertices & weights for bone)
return FbxCluster.class;
} else {
logger.log(Level.WARNING, "Unknown deformer subclass: {0}. Ignoring.", subclassName);
return FbxUnknownObject.class;
}
} else if (elementName.equals("Video")) {
if (subclassName.equals("Clip")) {
return FbxImage.class;
} else {
logger.log(Level.WARNING, "Unknown object subclass: {0}. Ignoring.", subclassName);
return FbxUnknownObject.class;
}
} else if (elementName.equals("Texture")) {
return FbxTexture.class;
} else if (elementName.equals("AnimationStack")) {
// AnimationStack (jME Animation)
return FbxAnimStack.class;
} else if (elementName.equals("AnimationLayer")) {
// AnimationLayer (for blended animation - not supported)
return FbxAnimLayer.class;
} else if (elementName.equals("AnimationCurveNode")) {
// AnimationCurveNode
return FbxAnimCurveNode.class;
} else if (elementName.equals("AnimationCurve")) {
// AnimationCurve (Data)
return FbxAnimCurve.class;
} else if (elementName.equals("SceneInfo")) {
// Old-style FBX 6.1 uses this. Nothing useful here.
return FbxUnknownObject.class;
} else {
logger.log(Level.WARNING, "Unknown object class: {0}. Ignoring.", elementName);
return FbxUnknownObject.class;
}
}
/**
* Automatically create an FBXObject by inspecting its class / subclass
* properties.
*
* @param element The element from which to create an object.
* @param assetManager AssetManager to load dependent resources
* @param sceneFolderName Folder relative to which resources shall be loaded
* @return The object, or null if not supported (?)
*/
public static FbxObject createObject(FbxElement element, AssetManager assetManager, String sceneFolderName) {
String elementName = element.id;
String subclassName;
if (element.propertiesTypes.length == 3) {
// FBX 7.x (all objects start with Long ID)
subclassName = (String) element.properties.get(2);
} else if (element.propertiesTypes.length == 2) {
// FBX 6.x (objects only have name and subclass)
subclassName = (String) element.properties.get(1);
} else {
// Not an object or invalid data.
return null;
}
Class javaFbxClass = getImplementingClass(elementName, subclassName);
if (javaFbxClass != null) {
try {
// This object is supported by FBX importer, create new instance.
// Import the data into the object from the element, then return it.
Constructor ctor = javaFbxClass.getConstructor(AssetManager.class, String.class);
FbxObject obj = ctor.newInstance(assetManager, sceneFolderName);
obj.fromElement(element);
String subClassName = elementName + ", " + subclassName;
if (obj.assetManager == null) {
throw new IllegalStateException("FBXObject subclass (" + subClassName +
") forgot to call super() in their constructor");
} else if (obj.className == null) {
throw new IllegalStateException("FBXObject subclass (" + subClassName +
") forgot to call super.fromElement() in their fromElement() implementation");
}
return obj;
} catch (InvocationTargetException
| NoSuchMethodException
| InstantiationException
| IllegalAccessException ex) {
// Programmer error.
throw new IllegalStateException(ex);
}
}
// Not supported object.
return null;
}
}
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