159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/* 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2012 jMonkeyEngine 359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * All rights reserved. 459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Redistribution and use in source and binary forms, with or without 659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * modification, are permitted provided that the following conditions are 759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * met: 859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions of source code must retain the above copyright 1059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer. 1159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Redistributions in binary form must reproduce the above copyright 1359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * notice, this list of conditions and the following disclaimer in the 1459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * documentation and/or other materials provided with the distribution. 1559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 1659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * * Neither the name of 'jMonkeyEngine' nor the names of its contributors 1759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * may be used to endorse or promote products derived from this software 1859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * without specific prior written permission. 1959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 2059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 2259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 2359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 2459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 2559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 2659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 2759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 2859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 2959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 3159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 3259b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapackage com.jme3.terrain.heightmap; 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.FastMath; 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.util.Random; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.util.logging.Level; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.util.logging.Logger; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Creates an heightmap based on the fault algorithm. Each iteration, a random line 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * crossing the map is generated. On one side height values are raised, on the other side 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * lowered. 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @author cghislai 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class FaultHeightMap extends AbstractHeightMap { 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private static final Logger logger = Logger.getLogger(FaultHeightMap.class.getName()); 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Values on one side are lowered, on the other side increased, 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * creating a step at the fault line 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static final int FAULTTYPE_STEP = 0; 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Values on one side are lowered, then increase lineary while crossing 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * the fault line to the other side. The fault line will be a inclined 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * plane 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static final int FAULTTYPE_LINEAR = 1; 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Values are lowered on one side, increased on the other, creating a 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * cosine curve on the fault line 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static final int FAULTTYPE_COSINE = 2; 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Value are lowered on both side, but increased on the fault line 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * creating a smooth ridge on the fault line. 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static final int FAULTTYPE_SINE = 3; 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * A linear fault is created 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static final int FAULTSHAPE_LINE = 10; 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * A circular fault is created. 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public static final int FAULTSHAPE_CIRCLE = 11; 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private long seed; // A seed to feed the random 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private int iterations; // iterations to perform 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private float minFaultHeight; // the height modification applied 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private float maxFaultHeight; // the height modification applied 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private float minRange; // The range for linear and trigo faults 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private float maxRange; // The range for linear and trigo faults 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private float minRadius; // radii for circular fault 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private float maxRadius; 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private int faultType; // The type of fault 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta private int faultShape; // The type of fault 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Constructor creates the fault. For faulttype other than STEP, a range can 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * be provided. For faultshape circle, min and max radii can be provided. 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Don't forget to reload the map if you have set parameters after the constructor 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * call. 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param size The size of the heightmap 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param iterations Iterations to perform 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param faultType Type of fault 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param faultShape Shape of the fault -line or circle 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param minFaultHeight Height modified on each side 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param maxFaultHeight Height modified on each side 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param seed A seed to feed the Random generator 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @see setFaultRange, setMinRadius, setMaxRadius 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public FaultHeightMap(int size, int iterations, int faultType, int faultShape, float minFaultHeight, float maxFaultHeight, long seed) throws Exception { 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (size < 0 || iterations < 0) { 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new Exception("Size and iterations must be greater than 0!"); 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.size = size; 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.iterations = iterations; 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.faultType = faultType; 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.faultShape = faultShape; 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.minFaultHeight = minFaultHeight; 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxFaultHeight = maxFaultHeight; 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.seed = seed; 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.minRange = minFaultHeight; 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxRange = maxFaultHeight; 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.minRadius = size / 10; 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxRadius = size / 4; 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta load(); 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Create an heightmap with linear step faults. 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param size size of heightmap 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param iterations number of iterations 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param minFaultHeight Height modified on each side 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param maxFaultHeight Height modified on each side 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public FaultHeightMap(int size, int iterations, float minFaultHeight, float maxFaultHeight) throws Exception { 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this(size, iterations, FAULTTYPE_STEP, FAULTSHAPE_LINE, minFaultHeight, maxFaultHeight, new Random().nextLong()); 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Override 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public boolean load() { 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // clean up data if needed. 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (null != heightData) { 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta unloadHeightMap(); 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta heightData = new float[size * size]; 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float[][] tempBuffer = new float[size][size]; 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Random random = new Random(seed); 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < iterations; i++) { 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta addFault(tempBuffer, random); 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < size; i++) { 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int j = 0; j < size; j++) { 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta setHeightAtPoint(tempBuffer[i][j], i, j); 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta normalizeTerrain(NORMALIZE_RANGE); 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta logger.log(Level.INFO, "Fault heightmap generated"); 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return true; 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected void addFault(float[][] tempBuffer, Random random) { 15859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float faultHeight = minFaultHeight + random.nextFloat() * (maxFaultHeight - minFaultHeight); 15959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float range = minRange + random.nextFloat() * (maxRange - minRange); 16059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta switch (faultShape) { 16159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta case FAULTSHAPE_LINE: 16259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta addLineFault(tempBuffer, random, faultHeight, range); 16359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta break; 16459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta case FAULTSHAPE_CIRCLE: 16559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta addCircleFault(tempBuffer, random, faultHeight, range); 16659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta break; 16759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected void addLineFault(float[][] tempBuffer, Random random, float faultHeight, float range) { 17159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int x1 = random.nextInt(size); 17259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int x2 = random.nextInt(size); 17359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int y1 = random.nextInt(size); 17459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int y2 = random.nextInt(size); 17559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < size; i++) { 17859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int j = 0; j < size; j++) { 17959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float dist = ((x2 - x1) * (j - y1) - (y2 - y1) * (i - x1)) 18059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta / (FastMath.sqrt(FastMath.sqr(x2 - x1) + FastMath.sqr(y2 - y1))); 18159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tempBuffer[i][j] += calcHeight(dist, random, faultHeight, range); 18259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 18559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 18659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected void addCircleFault(float[][] tempBuffer, Random random, float faultHeight, float range) { 18759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float radius = random.nextFloat() * (maxRadius - minRadius) + minRadius; 18859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int intRadius = (int) FastMath.floor(radius); 18959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Allox circle center to be out of map if not by more than radius. 19059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // Unlucky cases will put them in the far corner, with the circle 19159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // entirely outside heightmap 19259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int x = random.nextInt(size + 2 * intRadius) - intRadius; 19359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int y = random.nextInt(size + 2 * intRadius) - intRadius; 19459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 19559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int i = 0; i < size; i++) { 19659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int j = 0; j < size; j++) { 19759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float dist; 19859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (i != x || j != y) { 19959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int dx = i - x; 20059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int dy = j - y; 20159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float dmag = FastMath.sqrt(FastMath.sqr(dx) + FastMath.sqr(dy)); 20259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float rx = x + dx / dmag * radius; 20359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float ry = y + dy / dmag * radius; 20459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dist = FastMath.sign(dmag - radius) 20559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * FastMath.sqrt(FastMath.sqr(i - rx) + FastMath.sqr(j - ry)); 20659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 20759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta dist = 0; 20859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 20959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tempBuffer[i][j] += calcHeight(dist, random, faultHeight, range); 21059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected float calcHeight(float dist, Random random, float faultHeight, float range) { 21559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta switch (faultType) { 21659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta case FAULTTYPE_STEP: { 21759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return FastMath.sign(dist) * faultHeight; 21859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta case FAULTTYPE_LINEAR: { 22059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (FastMath.abs(dist) > range) { 22159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return FastMath.sign(dist) * faultHeight; 22259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float f = FastMath.abs(dist) / range; 22459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return FastMath.sign(dist) * faultHeight * f; 22559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta case FAULTTYPE_SINE: { 22759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (FastMath.abs(dist) > range) { 22859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return -faultHeight; 22959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 23059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float f = dist / range; 23159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // We want -1 at f=-1 and f=1; 1 at f=0 23259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return FastMath.sin((1 + 2 * f) * FastMath.PI / 2) * faultHeight; 23359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 23459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta case FAULTTYPE_COSINE: { 23559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (FastMath.abs(dist) > range) { 23659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return -FastMath.sign(dist) * faultHeight; 23759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 23859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float f = dist / range; 23959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta float val = FastMath.cos((1 + f) * FastMath.PI / 2) * faultHeight; 24059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return val; 24159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 24259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 24359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta //shoudn't go here 24459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new RuntimeException("Code needs update to switch allcases"); 24559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 24659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 24759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getFaultShape() { 24859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return faultShape; 24959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 25059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setFaultShape(int faultShape) { 25259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.faultShape = faultShape; 25359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 25459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getFaultType() { 25659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return faultType; 25759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 25859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setFaultType(int faultType) { 26059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.faultType = faultType; 26159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 26259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getIterations() { 26459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return iterations; 26559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 26659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setIterations(int iterations) { 26859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.iterations = iterations; 26959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 27059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getMaxFaultHeight() { 27259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return maxFaultHeight; 27359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 27459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setMaxFaultHeight(float maxFaultHeight) { 27659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxFaultHeight = maxFaultHeight; 27759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 27859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getMaxRadius() { 28059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return maxRadius; 28159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 28259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 28359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setMaxRadius(float maxRadius) { 28459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxRadius = maxRadius; 28559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 28659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 28759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getMaxRange() { 28859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return maxRange; 28959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 29059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 29159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setMaxRange(float maxRange) { 29259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxRange = maxRange; 29359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 29459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 29559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getMinFaultHeight() { 29659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return minFaultHeight; 29759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 29859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 29959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setMinFaultHeight(float minFaultHeight) { 30059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.minFaultHeight = minFaultHeight; 30159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 30259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 30359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getMinRadius() { 30459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return minRadius; 30559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 30659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 30759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setMinRadius(float minRadius) { 30859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.minRadius = minRadius; 30959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 31059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getMinRange() { 31259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return minRange; 31359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 31459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setMinRange(float minRange) { 31659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.minRange = minRange; 31759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 31859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public long getSeed() { 32059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return seed; 32159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 32259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 32359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void setSeed(long seed) { 32459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.seed = seed; 32559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 32659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 327