/*
* Copyright (c) 2009-2012 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.scene.shape;
import com.jme3.export.InputCapsule;
import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter;
import com.jme3.export.OutputCapsule;
import com.jme3.math.Vector3f;
import com.jme3.scene.Mesh;
import com.jme3.scene.VertexBuffer;
import com.jme3.scene.VertexBuffer.Type;
import java.io.IOException;
import java.nio.FloatBuffer;
/**
* A simple line implementation with a start and an end.
*
* @author Brent Owens
*/
public class Line extends Mesh {
private Vector3f start;
private Vector3f end;
public Line() {
}
public Line(Vector3f start, Vector3f end) {
setMode(Mode.Lines);
updateGeometry(start, end);
}
protected void updateGeometry(Vector3f start, Vector3f end) {
this.start = start;
this.end = end;
setBuffer(Type.Position, 3, new float[]{start.x, start.y, start.z,
end.x, end.y, end.z,});
setBuffer(Type.TexCoord, 2, new float[]{0, 0,
1, 1});
setBuffer(Type.Normal, 3, new float[]{0, 0, 1,
0, 0, 1});
setBuffer(Type.Index, 2, new short[]{0, 1});
updateBound();
}
/**
* Update the start and end points of the line.
*/
public void updatePoints(Vector3f start, Vector3f end) {
VertexBuffer posBuf = getBuffer(Type.Position);
FloatBuffer fb = (FloatBuffer) posBuf.getData();
fb.rewind();
fb.put(start.x).put(start.y).put(start.z);
fb.put(end.x).put(end.y).put(end.z);
posBuf.updateData(fb);
updateBound();
}
public Vector3f getEnd() {
return end;
}
public Vector3f getStart() {
return start;
}
@Override
public void write(JmeExporter ex) throws IOException {
super.write(ex);
OutputCapsule out = ex.getCapsule(this);
out.write(start, "startVertex", null);
out.write(end, "endVertex", null);
}
@Override
public void read(JmeImporter im) throws IOException {
super.read(im);
InputCapsule in = im.getCapsule(this);
start = (Vector3f) in.readSavable("startVertex", null);
end = (Vector3f) in.readSavable("endVertex", null);
}
}