/*
 * 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.terrain.geomipmap.lodcalc;

import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter;
import com.jme3.renderer.Camera;
import com.jme3.terrain.geomipmap.TerrainPatch;
import java.io.IOException;

/**
 * TODO: Make it work with multiple cameras
 * TODO: Fix the cracks when the lod differences are greater than 1
 * for two adjacent blocks.
 */
public class LodPerspectiveCalculatorFactory implements LodCalculatorFactory {

    private Camera cam;
    private float pixelError;

    public LodPerspectiveCalculatorFactory(Camera cam, float pixelError){
        this.cam = cam;
        this.pixelError = pixelError;
    }

    public LodCalculator createCalculator() {
        return new PerspectiveLodCalculator(cam, pixelError);
    }

    public LodCalculator createCalculator(TerrainPatch terrainPatch) {
        PerspectiveLodCalculator p = new PerspectiveLodCalculator(cam, pixelError);
        p.setTerrainPatch(terrainPatch);
        return p;
    }

    public void write(JmeExporter ex) throws IOException {
    }

    public void read(JmeImporter im) throws IOException {
    }

    @Override
    public LodCalculatorFactory clone() {
        try {
            return (LodCalculatorFactory) super.clone();
        } catch (CloneNotSupportedException ex) {
            throw new AssertionError();
        }
    }

}
