/* | |
* Copyright (c) 2009-2012 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 com.jme3.scene.plugins.blender.modifiers; | |
import java.util.ArrayList; | |
import java.util.Collection; | |
import java.util.List; | |
import java.util.logging.Level; | |
import java.util.logging.Logger; | |
import com.jme3.scene.plugins.blender.AbstractBlenderHelper; | |
import com.jme3.scene.plugins.blender.BlenderContext; | |
import com.jme3.scene.plugins.blender.animations.Ipo; | |
import com.jme3.scene.plugins.blender.animations.IpoHelper; | |
import com.jme3.scene.plugins.blender.exceptions.BlenderFileException; | |
import com.jme3.scene.plugins.blender.file.Pointer; | |
import com.jme3.scene.plugins.blender.file.Structure; | |
/** | |
* A class that is used in modifiers calculations. | |
* | |
* @author Marcin Roguski | |
*/ | |
public class ModifierHelper extends AbstractBlenderHelper { | |
private static final Logger LOGGER = Logger.getLogger(ModifierHelper.class.getName()); | |
/** | |
* This constructor parses the given blender version and stores the result. | |
* Some functionalities may differ in different blender versions. | |
* | |
* @param blenderVersion | |
* the version read from the blend file | |
* @param fixUpAxis | |
* a variable that indicates if the Y asxis is the UP axis or not | |
*/ | |
public ModifierHelper(String blenderVersion, boolean fixUpAxis) { | |
super(blenderVersion, fixUpAxis); | |
} | |
/** | |
* This method reads the given object's modifiers. | |
* | |
* @param objectStructure | |
* the object structure | |
* @param blenderContext | |
* the blender context | |
* @throws BlenderFileException | |
* this exception is thrown when the blender file is somehow | |
* corrupted | |
*/ | |
public Collection<Modifier> readModifiers(Structure objectStructure, BlenderContext blenderContext) throws BlenderFileException { | |
Collection<Modifier> result = new ArrayList<Modifier>(); | |
Structure modifiersListBase = (Structure) objectStructure.getFieldValue("modifiers"); | |
List<Structure> modifiers = modifiersListBase.evaluateListBase(blenderContext); | |
for (Structure modifierStructure : modifiers) { | |
Modifier modifier = null; | |
if (Modifier.ARRAY_MODIFIER_DATA.equals(modifierStructure.getType())) { | |
modifier = new ArrayModifier(modifierStructure, blenderContext); | |
} else if (Modifier.MIRROR_MODIFIER_DATA.equals(modifierStructure.getType())) { | |
modifier = new MirrorModifier(modifierStructure, blenderContext); | |
} else if (Modifier.ARMATURE_MODIFIER_DATA.equals(modifierStructure.getType())) { | |
modifier = new ArmatureModifier(objectStructure, modifierStructure, blenderContext); | |
} else if (Modifier.PARTICLE_MODIFIER_DATA.equals(modifierStructure.getType())) { | |
modifier = new ParticlesModifier(modifierStructure, blenderContext); | |
} | |
if (modifier != null) { | |
result.add(modifier); | |
blenderContext.addModifier(objectStructure.getOldMemoryAddress(), modifier); | |
} else { | |
LOGGER.log(Level.WARNING, "Unsupported modifier type: {0}", modifierStructure.getType()); | |
} | |
} | |
// at the end read object's animation modifier (object animation is | |
// either described by action or by ipo of the object) | |
Modifier modifier; | |
if (blenderVersion <= 249) { | |
modifier = this.readAnimationModifier249(objectStructure, blenderContext); | |
} else { | |
modifier = this.readAnimationModifier250(objectStructure, blenderContext); | |
} | |
if (modifier != null) { | |
result.add(modifier); | |
} | |
return result; | |
} | |
@Override | |
public boolean shouldBeLoaded(Structure structure, BlenderContext blenderContext) { | |
return true; | |
} | |
/** | |
* This method reads the object's animation modifier for blender version | |
* 2.49 and lower. | |
* | |
* @param objectStructure | |
* the object's structure | |
* @param blenderContext | |
* the blender context | |
* @return loaded modifier | |
* @throws BlenderFileException | |
* this exception is thrown when the blender file is somehow | |
* corrupted | |
*/ | |
private Modifier readAnimationModifier249(Structure objectStructure, BlenderContext blenderContext) throws BlenderFileException { | |
Modifier result = null; | |
Pointer pAction = (Pointer) objectStructure.getFieldValue("action"); | |
IpoHelper ipoHelper = blenderContext.getHelper(IpoHelper.class); | |
if (pAction.isNotNull()) { | |
Structure action = pAction.fetchData(blenderContext.getInputStream()).get(0); | |
List<Structure> actionChannels = ((Structure) action.getFieldValue("chanbase")).evaluateListBase(blenderContext); | |
if (actionChannels.size() == 1) {// object's animtion action has | |
// only one channel | |
Pointer pChannelIpo = (Pointer) actionChannels.get(0).getFieldValue("ipo"); | |
Structure ipoStructure = pChannelIpo.fetchData(blenderContext.getInputStream()).get(0); | |
Ipo ipo = ipoHelper.fromIpoStructure(ipoStructure, blenderContext); | |
result = new ObjectAnimationModifier(ipo, action.getName(), objectStructure.getOldMemoryAddress(), blenderContext); | |
blenderContext.addModifier(objectStructure.getOldMemoryAddress(), result); | |
} else { | |
throw new IllegalStateException("Object's action cannot have more than one channel!"); | |
} | |
} else { | |
Pointer pIpo = (Pointer) objectStructure.getFieldValue("ipo"); | |
if (pIpo.isNotNull()) { | |
Structure ipoStructure = pIpo.fetchData(blenderContext.getInputStream()).get(0); | |
Ipo ipo = ipoHelper.fromIpoStructure(ipoStructure, blenderContext); | |
result = new ObjectAnimationModifier(ipo, objectStructure.getName(), objectStructure.getOldMemoryAddress(), blenderContext); | |
blenderContext.addModifier(objectStructure.getOldMemoryAddress(), result); | |
} | |
} | |
return result; | |
} | |
/** | |
* This method reads the object's animation modifier for blender version | |
* 2.50 and higher. | |
* | |
* @param objectStructure | |
* the object's structure | |
* @param blenderContext | |
* the blender context | |
* @return loaded modifier | |
* @throws BlenderFileException | |
* this exception is thrown when the blender file is somehow | |
* corrupted | |
*/ | |
private Modifier readAnimationModifier250(Structure objectStructure, BlenderContext blenderContext) throws BlenderFileException { | |
Modifier result = null; | |
Pointer pAnimData = (Pointer) objectStructure.getFieldValue("adt"); | |
if (pAnimData.isNotNull()) { | |
Structure animData = pAnimData.fetchData(blenderContext.getInputStream()).get(0); | |
Pointer pAction = (Pointer) animData.getFieldValue("action"); | |
if (pAction.isNotNull()) { | |
Structure actionStructure = pAction.fetchData(blenderContext.getInputStream()).get(0); | |
IpoHelper ipoHelper = blenderContext.getHelper(IpoHelper.class); | |
Ipo ipo = ipoHelper.fromAction(actionStructure, blenderContext); | |
result = new ObjectAnimationModifier(ipo, actionStructure.getName(), objectStructure.getOldMemoryAddress(), blenderContext); | |
blenderContext.addModifier(objectStructure.getOldMemoryAddress(), result); | |
} | |
} | |
return result; | |
} | |
} |