159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/* 259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Copyright (c) 2009-2010 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; 3359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 3459b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.export.*; 3559b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector2f; 3659b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.math.Vector3f; 3759b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.Mesh; 3859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.scene.VertexBuffer.Type; 3959b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport com.jme3.util.BufferUtils; 4059b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.io.IOException; 4159b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.nio.BufferUnderflowException; 4259b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.nio.FloatBuffer; 4359b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartaimport java.nio.IntBuffer; 4459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 4559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta/** 4659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Constructs heightfields to be used in Terrain. 4759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 4859b2e6871c65f58fdad78cd7229c292f6a177578Scott Bartapublic class GeoMap implements Savable { 4959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected float[] hdata; 5159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta protected int width, height, maxval; 5259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public GeoMap() {} 5459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 5559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Deprecated 5659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public GeoMap(FloatBuffer heightData, int width, int height, int maxval){ 5759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta hdata = new float[heightData.limit()]; 5859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta heightData.get(hdata); 5959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.width = width; 6059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.height = height; 6159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxval = maxval; 6259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 6359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 6459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public GeoMap(float[] heightData, int width, int height, int maxval){ 6559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.hdata = heightData; 6659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.width = width; 6759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.height = height; 6859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta this.maxval = maxval; 6959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 7059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta @Deprecated 7259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public FloatBuffer getHeightData(){ 7359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (!isLoaded()) 7459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return null; 7559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return BufferUtils.createFloatBuffer(hdata); 7659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 7759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 7859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float[] getHeightArray(){ 7959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (!isLoaded()) 8059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return null; 8159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return hdata; 8259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 8359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 8459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 8559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @return The maximum possible value that <code>getValue()</code> can 8659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * return. Mostly depends on the source data format (byte, short, int, etc). 8759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 8859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getMaximumValue(){ 8959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return maxval; 9059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 9159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 9259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 9359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Returns the height value for a given point. 9459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 9559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * MUST return the same value as getHeight(y*getWidth()+x) 9659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 9759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param x the X coordinate 9859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param y the Y coordinate 9959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @returns an arbitrary height looked up from the heightmap 10059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 10159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @throws NullPointerException If isLoaded() is false 10259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 10359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getValue(int x, int y) { 10459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return hdata[y*width+x]; 10559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 10659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 10759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 10859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Returns the height value at the given index. 10959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 11059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * zero index is top left of map, 11159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * getWidth()*getHeight() index is lower right 11259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 11359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param i The index 11459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @returns an arbitrary height looked up from the heightmap 11559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 11659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @throws NullPointerException If isLoaded() is false 11759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 11859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public float getValue(int i) { 11959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return hdata[i]; 12059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 12159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 12259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 12359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 12459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Returns the width of this Geomap 12559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 12659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @returns the width of this Geomap 12759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 12859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getWidth() { 12959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return width; 13059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 13159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 13259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 13359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Returns the height of this Geomap 13459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 13559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @returns the height of this Geomap 13659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 13759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public int getHeight() { 13859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return height; 13959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 14059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 14159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 14259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Returns true if the Geomap data is loaded in memory 14359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * If false, then the data is unavailable- must be loaded with load() 14459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * before the methods getHeight/getNormal can be used 14559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 14659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @returns wether the geomap data is loaded in system memory 14759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 14859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public boolean isLoaded() { 14959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return true; 15059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 15159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 15259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 15359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Creates a normal array from the normal data in this Geomap 15459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 15559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param store A preallocated FloatBuffer where to store the data (optional), size must be >= getWidth()*getHeight()*3 15659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @returns store, or a new FloatBuffer if store is null 15759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 15859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @throws NullPointerException If isLoaded() or hasNormalmap() is false 15959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 16059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public FloatBuffer writeNormalArray(FloatBuffer store, Vector3f scale) { 16159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 16259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store!=null){ 16359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store.remaining() < getWidth()*getHeight()*3) 16459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new BufferUnderflowException(); 16559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 16659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store = BufferUtils.createFloatBuffer(getWidth()*getHeight()*3); 16759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 16859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.rewind(); 16959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f oppositePoint = new Vector3f(); 17159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f adjacentPoint = new Vector3f(); 17259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f rootPoint = new Vector3f(); 17359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f tempNorm = new Vector3f(); 17459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int normalIndex = 0; 17559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 17659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int y = 0; y < getHeight(); y++) { 17759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int x = 0; x < getWidth(); x++) { 17859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta rootPoint.set(x, getValue(x,y), y); 17959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (y == getHeight() - 1) { 18059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (x == getWidth() - 1) { // case #4 : last row, last col 18159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // left cross up 18259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// adj = normalIndex - getWidth(); 18359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// opp = normalIndex - 1; 18459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta adjacentPoint.set(x, getValue(x,y-1), y-1); 18559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oppositePoint.set(x-1, getValue(x-1, y), y); 18659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { // case #3 : last row, except for last col 18759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // right cross up 18859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// adj = normalIndex + 1; 18959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// opp = normalIndex - getWidth(); 19059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta adjacentPoint.set(x+1, getValue(x+1,y), y); 19159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oppositePoint.set(x, getValue(x,y-1), y-1); 19259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 19359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { 19459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (x == getWidth() - 1) { // case #2 : last column except for last row 19559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // left cross down 19659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta adjacentPoint.set(x-1, getValue(x-1,y), y); 19759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oppositePoint.set(x, getValue(x,y+1), y+1); 19859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// adj = normalIndex - 1; 19959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// opp = normalIndex + getWidth(); 20059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } else { // case #1 : most cases 20159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // right cross down 20259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta adjacentPoint.set(x, getValue(x,y+1), y+1); 20359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oppositePoint.set(x+1, getValue(x+1,y), y); 20459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// adj = normalIndex + getWidth(); 20559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// opp = normalIndex + 1; 20659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 20759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 20859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 20959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 21159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tempNorm.set(adjacentPoint).subtractLocal(rootPoint) 21259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta .crossLocal(oppositePoint.subtractLocal(rootPoint)); 21359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta tempNorm.multLocal(scale).normalizeLocal(); 21459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta// store.put(tempNorm.x).put(tempNorm.y).put(tempNorm.z); 21559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta BufferUtils.setInBuffer(tempNorm, store, 21659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta normalIndex); 21759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta normalIndex++; 21859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 21959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 22159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return store; 22259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 22359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 22459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta /** 22559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * Creates a vertex array from the height data in this Geomap 22659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 22759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * The scale argument specifies the scale to use for the vertex buffer. 22859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * For example, if scale is 10,1,10, then the greatest X value is getWidth()*10 22959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 23059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param store A preallocated FloatBuffer where to store the data (optional), size must be >= getWidth()*getHeight()*3 23159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @param scale Created vertexes are scaled by this vector 23259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 23359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @returns store, or a new FloatBuffer if store is null 23459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * 23559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta * @throws NullPointerException If isLoaded() is false 23659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta */ 23759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public FloatBuffer writeVertexArray(FloatBuffer store, Vector3f scale, boolean center) { 23859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 23959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store!=null){ 24059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store.remaining() < width*height*3) 24159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new BufferUnderflowException(); 24259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 24359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store = BufferUtils.createFloatBuffer(width*height*3); 24459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 24559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 24659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta assert hdata.length == height*width; 24759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 24859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector3f offset = new Vector3f(-getWidth() * scale.x * 0.5f, 24959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 0, 25059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta -getWidth() * scale.z * 0.5f); 25159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (!center) 25259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta offset.zero(); 25359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 25459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int i = 0; 25559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int z = 0; z < height; z++){ 25659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int x = 0; x < width; x++){ 25759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.put( (float)x*scale.x + offset.x ); 25859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.put( (float)hdata[i++]*scale.y ); 25959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.put( (float)z*scale.z + offset.z ); 26059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 26159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 26259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return store; 26459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 26559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 26659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Vector2f getUV(int x, int y, Vector2f store){ 26759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.set( (float)x / (float)getWidth(), 26859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta (float)y / (float)getHeight() ); 26959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return store; 27059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 27159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Vector2f getUV(int i, Vector2f store){ 27359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return store; 27459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 27559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 27659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public FloatBuffer writeTexCoordArray(FloatBuffer store, Vector2f offset, Vector2f scale){ 27759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store!=null){ 27859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store.remaining() < getWidth()*getHeight()*2) 27959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new BufferUnderflowException(); 28059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 28159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store = BufferUtils.createFloatBuffer(getWidth()*getHeight()*2); 28259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 28359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 28459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (offset == null) 28559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta offset = new Vector2f(); 28659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 28759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Vector2f tcStore = new Vector2f(); 28859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int y = 0; y < getHeight(); y++){ 28959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int x = 0; x < getWidth(); x++){ 29059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta getUV(x,y,tcStore); 29159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.put( offset.x + tcStore.x * scale.x ); 29259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.put( offset.y + tcStore.y * scale.y ); 29359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 29459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 29559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 29659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 29759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return store; 29859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 29959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 30059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public IntBuffer writeIndexArray(IntBuffer store){ 30159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int faceN = (getWidth()-1)*(getHeight()-1)*2; 30259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 30359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store!=null){ 30459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (store.remaining() < faceN*3) 30559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta throw new BufferUnderflowException(); 30659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta }else{ 30759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store = BufferUtils.createIntBuffer(faceN*3); 30859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 30959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta int i = 0; 31159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int z = 0; z < getHeight()-1; z++){ 31259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta for (int x = 0; x < getWidth()-1; x++){ 31359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.put(i).put(i+getWidth()).put(i+getWidth()+1); 31459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.put(i+getWidth()+1).put(i+1).put(i); 31559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta i++; 31659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 31759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta // TODO: There's probably a better way to do this.. 31859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (x==getWidth()-2) i++; 31959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 32059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 32159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta store.flip(); 32259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 32359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return store; 32459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 32559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 32659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public Mesh createMesh(Vector3f scale, Vector2f tcScale, boolean center){ 32759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer pb = writeVertexArray(null, scale, center); 32859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer tb = writeTexCoordArray(null, Vector2f.ZERO, tcScale); 32959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer nb = writeNormalArray(null, scale); 33059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta IntBuffer ib = writeIndexArray(null); 33159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta Mesh m = new Mesh(); 33259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta m.setBuffer(Type.Position, 3, pb); 33359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta m.setBuffer(Type.Normal, 3, nb); 33459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta m.setBuffer(Type.TexCoord, 2, tb); 33559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta m.setBuffer(Type.Index, 3, ib); 33659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta m.setStatic(); 33759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta m.updateBound(); 33859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta return m; 33959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 34059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 34159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void write(JmeExporter ex) throws IOException { 34259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta OutputCapsule oc = ex.getCapsule(this); 34359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oc.write(hdata, "hdataarray", null); 34459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oc.write(width, "width", 0); 34559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oc.write(height, "height", 0); 34659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta oc.write(maxval, "maxval", 0); 34759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 34859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 34959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta public void read(JmeImporter im) throws IOException { 35059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta InputCapsule ic = im.getCapsule(this); 35159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta hdata = ic.readFloatArray("hdataarray", null); 35259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (hdata == null) { 35359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta FloatBuffer buf = ic.readFloatBuffer("hdata", null); 35459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta if (buf != null) { 35559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta hdata = new float[buf.limit()]; 35659b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta buf.get(hdata); 35759b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 35859b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 35959b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta width = ic.readInt("width", 0); 36059b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta height = ic.readInt("height", 0); 36159b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta maxval = ic.readInt("maxval", 0); 36259b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta } 36359b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 36459b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta 36559b2e6871c65f58fdad78cd7229c292f6a177578Scott Barta} 366