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      1 /*
      2  * Copyright (c) 2009-2010 jMonkeyEngine
      3  * All rights reserved.
      4  *
      5  * Redistribution and use in source and binary forms, with or without
      6  * modification, are permitted provided that the following conditions are
      7  * met:
      8  *
      9  * * Redistributions of source code must retain the above copyright
     10  *   notice, this list of conditions and the following disclaimer.
     11  *
     12  * * Redistributions in binary form must reproduce the above copyright
     13  *   notice, this list of conditions and the following disclaimer in the
     14  *   documentation and/or other materials provided with the distribution.
     15  *
     16  * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
     17  *   may be used to endorse or promote products derived from this software
     18  *   without specific prior written permission.
     19  *
     20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     22  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     23  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
     24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
     26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
     27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
     28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
     29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     31  */
     32 package com.jme3.terrain.geomipmap;
     33 
     34 import com.jme3.export.InputCapsule;
     35 import com.jme3.export.JmeExporter;
     36 import com.jme3.export.JmeImporter;
     37 import com.jme3.export.OutputCapsule;
     38 import com.jme3.renderer.RenderManager;
     39 import com.jme3.renderer.ViewPort;
     40 import com.jme3.scene.Spatial;
     41 import com.jme3.scene.control.AbstractControl;
     42 import com.jme3.scene.control.Control;
     43 import java.io.IOException;
     44 
     45 
     46 /**
     47  * Handles the normal vector updates when the terrain changes heights.
     48  * @author bowens
     49  */
     50 public class NormalRecalcControl extends AbstractControl {
     51 
     52     private TerrainQuad terrain;
     53 
     54     public NormalRecalcControl(){}
     55 
     56     public NormalRecalcControl(TerrainQuad terrain) {
     57         this.terrain = terrain;
     58     }
     59 
     60     @Override
     61     protected void controlUpdate(float tpf) {
     62         terrain.updateNormals();
     63     }
     64 
     65     @Override
     66     protected void controlRender(RenderManager rm, ViewPort vp) {
     67 
     68     }
     69 
     70     public Control cloneForSpatial(Spatial spatial) {
     71         NormalRecalcControl control = new NormalRecalcControl(terrain);
     72         control.setSpatial(spatial);
     73         control.setEnabled(true);
     74         return control;
     75     }
     76 
     77     @Override
     78     public void setSpatial(Spatial spatial) {
     79         super.setSpatial(spatial);
     80         if (spatial instanceof TerrainQuad)
     81             this.terrain = (TerrainQuad)spatial;
     82     }
     83 
     84     public TerrainQuad getTerrain() {
     85         return terrain;
     86     }
     87 
     88     public void setTerrain(TerrainQuad terrain) {
     89         this.terrain = terrain;
     90     }
     91 
     92     @Override
     93     public void write(JmeExporter ex) throws IOException {
     94         super.write(ex);
     95         OutputCapsule oc = ex.getCapsule(this);
     96         oc.write(terrain, "terrain", null);
     97     }
     98 
     99     @Override
    100     public void read(JmeImporter im) throws IOException {
    101         super.read(im);
    102         InputCapsule ic = im.getCapsule(this);
    103         terrain = (TerrainQuad) ic.readSavable("terrain", null);
    104     }
    105 
    106 }
    107