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/*
* Copyright (c) 2009-2010 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.animation;
import com.jme3.export.*;
import com.jme3.math.Vector3f;
import com.jme3.util.BufferUtils;
import java.io.IOException;
import java.nio.FloatBuffer;
/**
* A pose is a list of offsets that say where a mesh vertices should be for this pose.
*/
public final class Pose implements Savable, Cloneable {
private String name;
private int targetMeshIndex;
private Vector3f[] offsets;
private int[] indices;
private transient final Vector3f tempVec = new Vector3f();
private transient final Vector3f tempVec2 = new Vector3f();
public Pose(String name, int targetMeshIndex, Vector3f[] offsets, int[] indices){
this.name = name;
this.targetMeshIndex = targetMeshIndex;
this.offsets = offsets;
this.indices = indices;
}
public int getTargetMeshIndex(){
return targetMeshIndex;
}
/**
* Applies the offsets of this pose to the vertex buffer given by the blend factor.
*
* @param blend Blend factor, 0 = no change to vertex buffer, 1 = apply full offsets
* @param vertbuf Vertex buffer to apply this pose to
*/
public void apply(float blend, FloatBuffer vertbuf){
for (int i = 0; i < indices.length; i++){
Vector3f offset = offsets[i];
int vertIndex = indices[i];
tempVec.set(offset).multLocal(blend);
// acquire vertex
BufferUtils.populateFromBuffer(tempVec2, vertbuf, vertIndex);
// add offset multiplied by factor
tempVec2.addLocal(tempVec);
// write modified vertex
BufferUtils.setInBuffer(tempVec2, vertbuf, vertIndex);
}
}
/**
* This method creates a clone of the current object.
* @return a clone of the current object
*/
public Pose clone() {
try {
Pose result = (Pose) super.clone();
result.indices = this.indices.clone();
if(this.offsets!=null) {
result.offsets = new Vector3f[this.offsets.length];
for(int i=0;i<this.offsets.length;++i) {
result.offsets[i] = this.offsets[i].clone();
}
}
return result;
} catch (CloneNotSupportedException e) {
throw new AssertionError();
}
}
public void write(JmeExporter e) throws IOException {
OutputCapsule out = e.getCapsule(this);
out.write(name, "name", "");
out.write(targetMeshIndex, "meshIndex", -1);
out.write(offsets, "offsets", null);
out.write(indices, "indices", null);
}
public void read(JmeImporter i) throws IOException {
InputCapsule in = i.getCapsule(this);
name = in.readString("name", "");
targetMeshIndex = in.readInt("meshIndex", -1);
offsets = (Vector3f[]) in.readSavableArray("offsets", null);
indices = in.readIntArray("indices", null);
}
}
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