1 /* 2 * Copyright (c) 2009-2010 jMonkeyEngine 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 24 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 25 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 27 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 28 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 29 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 30 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 package com.jme3.animation; 34 35 import com.jme3.export.*; 36 import com.jme3.math.Vector3f; 37 import com.jme3.util.BufferUtils; 38 import java.io.IOException; 39 import java.nio.FloatBuffer; 40 41 /** 42 * A pose is a list of offsets that say where a mesh vertices should be for this pose. 43 */ 44 public final class Pose implements Savable, Cloneable { 45 46 private String name; 47 private int targetMeshIndex; 48 49 private Vector3f[] offsets; 50 private int[] indices; 51 52 private transient final Vector3f tempVec = new Vector3f(); 53 private transient final Vector3f tempVec2 = new Vector3f(); 54 Pose(String name, int targetMeshIndex, Vector3f[] offsets, int[] indices)55 public Pose(String name, int targetMeshIndex, Vector3f[] offsets, int[] indices){ 56 this.name = name; 57 this.targetMeshIndex = targetMeshIndex; 58 this.offsets = offsets; 59 this.indices = indices; 60 } 61 getTargetMeshIndex()62 public int getTargetMeshIndex(){ 63 return targetMeshIndex; 64 } 65 66 67 /** 68 * Applies the offsets of this pose to the vertex buffer given by the blend factor. 69 * 70 * @param blend Blend factor, 0 = no change to vertex buffer, 1 = apply full offsets 71 * @param vertbuf Vertex buffer to apply this pose to 72 */ apply(float blend, FloatBuffer vertbuf)73 public void apply(float blend, FloatBuffer vertbuf){ 74 for (int i = 0; i < indices.length; i++){ 75 Vector3f offset = offsets[i]; 76 int vertIndex = indices[i]; 77 78 tempVec.set(offset).multLocal(blend); 79 80 // acquire vertex 81 BufferUtils.populateFromBuffer(tempVec2, vertbuf, vertIndex); 82 83 // add offset multiplied by factor 84 tempVec2.addLocal(tempVec); 85 86 // write modified vertex 87 BufferUtils.setInBuffer(tempVec2, vertbuf, vertIndex); 88 } 89 } 90 91 /** 92 * This method creates a clone of the current object. 93 * @return a clone of the current object 94 */ clone()95 public Pose clone() { 96 try { 97 Pose result = (Pose) super.clone(); 98 result.indices = this.indices.clone(); 99 if(this.offsets!=null) { 100 result.offsets = new Vector3f[this.offsets.length]; 101 for(int i=0;i<this.offsets.length;++i) { 102 result.offsets[i] = this.offsets[i].clone(); 103 } 104 } 105 return result; 106 } catch (CloneNotSupportedException e) { 107 throw new AssertionError(); 108 } 109 } 110 write(JmeExporter e)111 public void write(JmeExporter e) throws IOException { 112 OutputCapsule out = e.getCapsule(this); 113 out.write(name, "name", ""); 114 out.write(targetMeshIndex, "meshIndex", -1); 115 out.write(offsets, "offsets", null); 116 out.write(indices, "indices", null); 117 } 118 read(JmeImporter i)119 public void read(JmeImporter i) throws IOException { 120 InputCapsule in = i.getCapsule(this); 121 name = in.readString("name", ""); 122 targetMeshIndex = in.readInt("meshIndex", -1); 123 offsets = (Vector3f[]) in.readSavableArray("offsets", null); 124 indices = in.readIntArray("indices", null); 125 } 126 } 127