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/**
* BillboardNode.java
*
* Copyright (c) 2013-2016, F(X)yz
* 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 F(X)yz, any associated website, 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 F(X)yz 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 org.fxyz3d.scene;
import java.util.Collection;
import javafx.animation.AnimationTimer;
import javafx.beans.property.BooleanProperty;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleBooleanProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.geometry.Bounds;
import javafx.geometry.Point3D;
import javafx.scene.Group;
import javafx.scene.Node;
import javafx.scene.shape.Shape3D;
import javafx.scene.transform.Affine;
import javafx.scene.transform.Transform;
/**
*
* @author Jason Pollastrini aka jdub1581
* @param
*/
public abstract class BillboardNode extends Group {
public enum BillboardMode {
SPHERICAL,
CYLINDRICAL;
}
protected abstract T getBillboardNode();
protected abstract Node getTarget();
private final Affine affine;
private final AnimationTimer timer;
public BillboardNode() {
affine = new Affine();
getTransforms().add(affine);
timer = new AnimationTimer() {
@Override
public void handle(long now) {
updateMatrix();
//System.out.println("Updated Matrix " + now / 1000000000);
}
};
}
private BillboardNode(Node... children) {
throw new UnsupportedOperationException(" not supported yet.");
}
private BillboardNode(Collection children) {
throw new UnsupportedOperationException(" not supported yet.");
}
public final void startBillboarding() {
timer.start();
}
public final void stopBillboarding() {
timer.stop();
}
private void updateMatrix() {
Transform cam = getTarget().getLocalToSceneTransform(),
self = getBillboardNode().getLocalToSceneTransform();
if (cam != null && self != null) {
Bounds b;
double cX,
cY,
cZ;
if (!(getBillboardNode() instanceof Shape3D)) {
b = getBillboardNode().getBoundsInLocal();
cX = b.getWidth() / 2;
cY = b.getHeight() / 2;
cZ = b.getDepth() / 2;
} else {
cX = self.getTx();
cY = self.getTy();
cZ = self.getTz();
}
Point3D camPos = new Point3D(cam.getTx(), cam.getTy(), cam.getTz());
Point3D selfPos = new Point3D(cX, cY, cZ);
Point3D up = Point3D.ZERO.add(0, -1, 0),
forward = new Point3D(
(selfPos.getX()) - camPos.getX(),
(selfPos.getY()) - camPos.getY(),
(selfPos.getZ()) - camPos.getZ()
).normalize(),
right = up.crossProduct(forward).normalize();
up = forward.crossProduct(right).normalize();
switch (getBillboardMode()) {
case SPHERICAL:
affine.setMxx(right.getX());
affine.setMxy(up.getX());
affine.setMzx(forward.getX());
affine.setMyx(right.getY());
affine.setMyy(up.getY());
affine.setMzy(forward.getY());
affine.setMzx(right.getZ());
affine.setMzy(up.getZ());
affine.setMzz(forward.getZ());
affine.setTx(cX * (1 - affine.getMxx()) - cY * affine.getMxy() - cZ * affine.getMxz());
affine.setTy(cY * (1 - affine.getMyy()) - cX * affine.getMyx() - cZ * affine.getMyz());
affine.setTz(cZ * (1 - affine.getMzz()) - cX * affine.getMzx() - cY * affine.getMzy());
break;
case CYLINDRICAL:
affine.setMxx(right.getX());
affine.setMxy(0);
affine.setMzx(forward.getY());
affine.setMyx(0);
affine.setMyy(1);
affine.setMzy(0);
affine.setMzx(right.getZ());
affine.setMzy(0);
affine.setMzz(forward.getZ());
affine.setTx(cX * (1 - affine.getMxx()) - cY * affine.getMxy() - cZ * affine.getMxz());
affine.setTy(cY * (1 - affine.getMyy()) - cX * affine.getMyx() - cZ * affine.getMyz());
affine.setTz(cZ * (1 - affine.getMzz()) - cX * affine.getMzx() - cY * affine.getMzy());
break;
}
}
}
private final ObjectProperty mode = new SimpleObjectProperty<>(this, "mode");
public final BillboardMode getBillboardMode() {
return mode.getValue();
}
public final void setBillboardMode(BillboardMode m) {
mode.set(m);
}
public final ObjectProperty billboardModeProperty() {
return mode;
}
private final BooleanProperty active = new SimpleBooleanProperty(this, "Billboarding Active") {
@Override
protected void invalidated() {
if (getValue()) {
startBillboarding();
System.out.println("timer started");
} else if (!getValue()) {
stopBillboarding();
System.out.println("timer stopped");
}
}
};
public final boolean isActive() {
return active.getValue();
}
public final void setActive(boolean b) {
active.set(b);
}
public final BooleanProperty activeProperty() {
return active;
}
}