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/**
 * CameraAdapter.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.utils;

import javafx.geometry.Point3D;
import javafx.scene.Camera;
import javafx.scene.transform.Transform;
import javafx.util.Callback;

/**
 *
 * @author Jason Pollastrini aka jdub1581
 */
public interface CameraAdapter {
    public Camera getCamera();
    
    /*==========================================================================
     Callbacks    
       | R | Up| F |  | P|
     U |mxx|mxy|mxz|  |tx|
     V |myx|myy|myz|  |ty|
     N |mzx|mzy|mzz|  |tz|
    
     */
    //Forward / look direction    
    Callback F = (a) -> {
        return new Point3D(a.getMzx(), a.getMzy(), a.getMzz());
    };
    Callback N = (a) -> {
        return new Point3D(a.getMxz(), a.getMyz(), a.getMzz());
    };
    // up direction
    Callback UP = (a) -> {
        return new Point3D(a.getMyx(), a.getMyy(), a.getMyz());
    };
    Callback V = (a) -> {
        return new Point3D(a.getMxy(), a.getMyy(), a.getMzy());
    };
    // right direction
    Callback R = (a) -> {
        return new Point3D(a.getMxx(), a.getMxy(), a.getMxz());
    };
    Callback U = (a) -> {
        return new Point3D(a.getMxx(), a.getMyx(), a.getMzx());
    };
    //position
    Callback P = (a) -> {
        return new Point3D(a.getTx(), a.getTy(), a.getTz());
    };

    default Point3D getCameraForwardVectorColumn() {
        return F.call(getCamera().getLocalToSceneTransform());
    }

    default Point3D getCameraForwardVectorRow() {
        return N.call(getCamera().getLocalToSceneTransform());
    }

    default Point3D getCameraRightVectorColumn() {
        return R.call(getCamera().getLocalToSceneTransform());
    }

    default Point3D getCameraRightVectorRow() {
        return U.call(getCamera().getLocalToSceneTransform());
    }

    default Point3D getCameraUpVectorColumn() {
        return UP.call(getCamera().getLocalToSceneTransform());
    }

    default Point3D getCameraUpVectorRow() {
        return V.call(getCamera().getLocalToSceneTransform());
    }

    default Point3D getCameraScenePosition() {
        return P.call(getCamera().getLocalToSceneTransform());
    }
}