1 /** 2 * Copyright (c) 2011, Novyon Events 3 * 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * 9 * - Redistributions of source code must retain the above copyright notice, this 10 * list of conditions and the following disclaimer. 11 * 12 * - Redistributions in binary form must reproduce the above copyright notice, 13 * this list of conditions and the following disclaimer in the documentation 14 * and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 24 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 25 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 26 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * @author Anthyon 29 */ 30 package com.jme3.terrain.noise.basis; 31 32 import java.nio.FloatBuffer; 33 import java.util.ArrayList; 34 import java.util.List; 35 36 import com.jme3.terrain.noise.Basis; 37 import com.jme3.terrain.noise.modulator.Modulator; 38 import com.jme3.terrain.noise.modulator.NoiseModulator; 39 40 /** 41 * Utility base class for Noise implementations 42 * 43 * @author Anthyon 44 * 45 */ 46 public abstract class Noise implements Basis { 47 48 protected List<Modulator> modulators = new ArrayList<Modulator>(); 49 50 protected float scale = 1.0f; 51 52 @Override 53 public String toString() { 54 return this.getClass().getSimpleName(); 55 } 56 57 @Override 58 public FloatBuffer getBuffer(float sx, float sy, float base, int size) { 59 FloatBuffer retval = FloatBuffer.allocate(size * size); 60 for (int y = 0; y < size; y++) { 61 for (int x = 0; x < size; x++) { 62 retval.put(this.modulate((sx + x) / size, (sy + y) / size, base)); 63 } 64 } 65 return retval; 66 } 67 68 public float modulate(float x, float y, float z) { 69 float retval = this.value(x, y, z); 70 for (Modulator m : this.modulators) { 71 if (m instanceof NoiseModulator) { 72 retval = m.value(retval); 73 } 74 } 75 return retval; 76 } 77 78 @Override 79 public Basis addModulator(Modulator modulator) { 80 this.modulators.add(modulator); 81 return this; 82 } 83 84 @Override 85 public Basis setScale(float scale) { 86 this.scale = scale; 87 return this; 88 } 89 90 @Override 91 public float getScale() { 92 return this.scale; 93 } 94 } 95
