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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.cinematic;
import com.jme3.export.*;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
/**
*
* @author Nehon
*/
public class TimeLine extends HashMap<Integer, KeyFrame> implements Savable {
protected int keyFramesPerSeconds = 30;
protected int lastKeyFrameIndex = 0;
public TimeLine() {
super();
}
public KeyFrame getKeyFrameAtTime(float time) {
return get(getKeyFrameIndexFromTime(time));
}
public KeyFrame getKeyFrameAtIndex(int keyFrameIndex) {
return get(keyFrameIndex);
}
public void addKeyFrameAtTime(float time, KeyFrame keyFrame) {
addKeyFrameAtIndex(getKeyFrameIndexFromTime(time), keyFrame);
}
public void addKeyFrameAtIndex(int keyFrameIndex, KeyFrame keyFrame) {
put(keyFrameIndex, keyFrame);
keyFrame.setIndex(keyFrameIndex);
if (lastKeyFrameIndex < keyFrameIndex) {
lastKeyFrameIndex = keyFrameIndex;
}
}
public void removeKeyFrame(int keyFrameIndex) {
remove(keyFrameIndex);
if (lastKeyFrameIndex == keyFrameIndex) {
KeyFrame kf = null;
for (int i = keyFrameIndex; kf == null && i >= 0; i--) {
kf = getKeyFrameAtIndex(i);
lastKeyFrameIndex = i;
}
}
}
public void removeKeyFrame(float time) {
removeKeyFrame(getKeyFrameIndexFromTime(time));
}
public int getKeyFrameIndexFromTime(float time) {
return Math.round(time * keyFramesPerSeconds);
}
public float getKeyFrameTime(KeyFrame keyFrame) {
return (float)keyFrame.getIndex()/(float)keyFramesPerSeconds;
}
public Collection<KeyFrame> getAllKeyFrames() {
return values();
}
public int getLastKeyFrameIndex() {
return lastKeyFrameIndex;
}
public void write(JmeExporter ex) throws IOException {
OutputCapsule oc = ex.getCapsule(this);
ArrayList list = new ArrayList();
list.addAll(values());
oc.writeSavableArrayList(list, "keyFrames", null);
}
public void read(JmeImporter im) throws IOException {
InputCapsule ic = im.getCapsule(this);
ArrayList list = ic.readSavableArrayList("keyFrames", null);
for (Iterator it = list.iterator(); it.hasNext();) {
KeyFrame keyFrame = (KeyFrame) it.next();
addKeyFrameAtIndex(keyFrame.getIndex(), keyFrame);
}
}
}
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