1 package com.jme3.scene.plugins.blender.modifiers; 2 3 import com.jme3.scene.Node; 4 import com.jme3.scene.plugins.blender.BlenderContext; 5 import com.jme3.scene.plugins.blender.file.Pointer; 6 import com.jme3.scene.plugins.blender.file.Structure; 7 8 /** 9 * This class represents an object's modifier. The modifier object can be varied 10 * and the user needs to know what is the type of it for the specified type 11 * name. For example "ArmatureModifierData" type specified in blender is 12 * represented by AnimData object from jMonkeyEngine. 13 * 14 * @author Marcin Roguski (Kaelthas) 15 */ 16 public abstract class Modifier { 17 18 public static final String ARRAY_MODIFIER_DATA = "ArrayModifierData"; 19 public static final String ARMATURE_MODIFIER_DATA = "ArmatureModifierData"; 20 public static final String PARTICLE_MODIFIER_DATA = "ParticleSystemModifierData"; 21 public static final String MIRROR_MODIFIER_DATA = "MirrorModifierData"; 22 public static final String SUBSURF_MODIFIER_DATA = "SubsurfModifierData"; 23 public static final String OBJECT_ANIMATION_MODIFIER_DATA = "ObjectAnimationModifierData"; 24 25 /** This variable indicates if the modifier is invalid (<b>true</b>) or not (<b>false</b>). */ 26 protected boolean invalid; 27 28 /** 29 * This method applies the modifier to the given node. 30 * 31 * @param node 32 * the node that will have modifier applied 33 * @param blenderContext 34 * the blender context 35 * @return the node with applied modifier 36 */ apply(Node node, BlenderContext blenderContext)37 public abstract Node apply(Node node, BlenderContext blenderContext); 38 39 /** 40 * This method returns blender's type of modifier. 41 * 42 * @return blender's type of modifier 43 */ getType()44 public abstract String getType(); 45 validate(Structure modifierStructure, BlenderContext blenderContext)46 protected boolean validate(Structure modifierStructure, BlenderContext blenderContext) { 47 Structure modifierData = (Structure)modifierStructure.getFieldValue("modifier"); 48 Pointer pError = (Pointer) modifierData.getFieldValue("error"); 49 invalid = pError.isNotNull(); 50 return !invalid; 51 } 52 } 53