1 package com.jme3.scene.plugins.blender.modifiers; 2 3 import java.util.ArrayList; 4 import java.util.HashMap; 5 import java.util.logging.Level; 6 import java.util.logging.Logger; 7 8 import com.jme3.animation.AnimControl; 9 import com.jme3.animation.Animation; 10 import com.jme3.animation.SpatialTrack; 11 import com.jme3.scene.Node; 12 import com.jme3.scene.plugins.blender.BlenderContext; 13 import com.jme3.scene.plugins.blender.animations.Ipo; 14 import com.jme3.scene.plugins.blender.exceptions.BlenderFileException; 15 import com.jme3.scene.plugins.ogre.AnimData; 16 17 /** 18 * This modifier allows to add animation to the object. 19 * 20 * @author Marcin Roguski (Kaelthas) 21 */ 22 /* package */class ObjectAnimationModifier extends Modifier { 23 private static final Logger LOGGER = Logger.getLogger(ObjectAnimationModifier.class.getName()); 24 25 /** Loaded animation data. */ 26 private AnimData animData; 27 28 /** 29 * This constructor reads animation of the object itself (without bones) and 30 * stores it as an ArmatureModifierData modifier. The animation is returned 31 * as a modifier. It should be later applied regardless other modifiers. The 32 * reason for this is that object may not have modifiers added but it's 33 * animation should be working. The stored modifier is an anim data and 34 * additional data is given object's OMA. 35 * 36 * @param ipo 37 * the object's interpolation curves 38 * @param objectAnimationName 39 * the name of object's animation 40 * @param objectOMA 41 * the OMA of the object 42 * @param blenderContext 43 * the blender context 44 * @throws BlenderFileException 45 * this exception is thrown when the blender file is somehow 46 * corrupted 47 */ ObjectAnimationModifier(Ipo ipo, String objectAnimationName, Long objectOMA, BlenderContext blenderContext)48 public ObjectAnimationModifier(Ipo ipo, String objectAnimationName, Long objectOMA, BlenderContext blenderContext) throws BlenderFileException { 49 int fps = blenderContext.getBlenderKey().getFps(); 50 51 // calculating track 52 SpatialTrack track = (SpatialTrack) ipo.calculateTrack(-1, 0, ipo.getLastFrame(), fps, true); 53 54 Animation animation = new Animation(objectAnimationName, ipo.getLastFrame() / fps); 55 animation.setTracks(new SpatialTrack[] { track }); 56 ArrayList<Animation> animations = new ArrayList<Animation>(1); 57 animations.add(animation); 58 59 animData = new AnimData(null, animations); 60 blenderContext.setAnimData(objectOMA, animData); 61 } 62 63 @Override apply(Node node, BlenderContext blenderContext)64 public Node apply(Node node, BlenderContext blenderContext) { 65 if (invalid) { 66 LOGGER.log(Level.WARNING, "Armature modifier is invalid! Cannot be applied to: {0}", node.getName()); 67 }// if invalid, animData will be null 68 if (animData != null) { 69 // INFO: constraints for this modifier are applied in the 70 // ObjectHelper when the whole object is loaded 71 ArrayList<Animation> animList = animData.anims; 72 if (animList != null && animList.size() > 0) { 73 HashMap<String, Animation> anims = new HashMap<String, Animation>(); 74 for (int i = 0; i < animList.size(); ++i) { 75 Animation animation = animList.get(i); 76 anims.put(animation.getName(), animation); 77 } 78 79 AnimControl control = new AnimControl(null); 80 control.setAnimations(anims); 81 node.addControl(control); 82 } 83 } 84 return node; 85 } 86 87 @Override getType()88 public String getType() { 89 return Modifier.OBJECT_ANIMATION_MODIFIER_DATA; 90 } 91 } 92