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 33 // $Id: Box.java 4131 2009-03-19 20:15:28Z blaine.dev $ 34 package com.jme3.scene.shape; 35 36 import com.jme3.math.Vector3f; 37 import com.jme3.scene.VertexBuffer.Type; 38 import com.jme3.util.BufferUtils; 39 import java.nio.FloatBuffer; 40 41 /** 42 * A box with solid (filled) faces. 43 * 44 * @author Mark Powell 45 * @version $Revision: 4131 $, $Date: 2009-03-19 16:15:28 -0400 (Thu, 19 Mar 2009) $ 46 */ 47 public class Box extends AbstractBox { 48 49 private static final short[] GEOMETRY_INDICES_DATA = { 50 2, 1, 0, 3, 2, 0, // back 51 6, 5, 4, 7, 6, 4, // right 52 10, 9, 8, 11, 10, 8, // front 53 14, 13, 12, 15, 14, 12, // left 54 18, 17, 16, 19, 18, 16, // top 55 22, 21, 20, 23, 22, 20 // bottom 56 }; 57 58 private static final float[] GEOMETRY_NORMALS_DATA = { 59 0, 0, -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, // back 60 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, // right 61 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, // front 62 -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, 0, 0, // left 63 0, 1, 0, 0, 1, 0, 0, 1, 0, 0, 1, 0, // top 64 0, -1, 0, 0, -1, 0, 0, -1, 0, 0, -1, 0 // bottom 65 }; 66 67 private static final float[] GEOMETRY_TEXTURE_DATA = { 68 1, 0, 0, 0, 0, 1, 1, 1, // back 69 1, 0, 0, 0, 0, 1, 1, 1, // right 70 1, 0, 0, 0, 0, 1, 1, 1, // front 71 1, 0, 0, 0, 0, 1, 1, 1, // left 72 1, 0, 0, 0, 0, 1, 1, 1, // top 73 1, 0, 0, 0, 0, 1, 1, 1 // bottom 74 }; 75 76 /** 77 * Creates a new box. 78 * <p> 79 * The box has a center of 0,0,0 and extends in the out from the center by 80 * the given amount in <em>each</em> direction. So, for example, a box 81 * with extent of 0.5 would be the unit cube. 82 * 83 * @param x the size of the box along the x axis, in both directions. 84 * @param y the size of the box along the y axis, in both directions. 85 * @param z the size of the box along the z axis, in both directions. 86 */ 87 public Box(float x, float y, float z) { 88 super(); 89 updateGeometry(Vector3f.ZERO, x, y, z); 90 } 91 92 /** 93 * Creates a new box. 94 * <p> 95 * The box has the given center and extends in the out from the center by 96 * the given amount in <em>each</em> direction. So, for example, a box 97 * with extent of 0.5 would be the unit cube. 98 * 99 * @param center the center of the box. 100 * @param x the size of the box along the x axis, in both directions. 101 * @param y the size of the box along the y axis, in both directions. 102 * @param z the size of the box along the z axis, in both directions. 103 */ 104 public Box(Vector3f center, float x, float y, float z) { 105 super(); 106 updateGeometry(center, x, y, z); 107 } 108 109 /** 110 * Constructor instantiates a new <code>Box</code> object. 111 * <p> 112 * The minimum and maximum point are provided, these two points define the 113 * shape and size of the box but not it's orientation or position. You should 114 * use the {@link #setLocalTranslation()} and {@link #setLocalRotation()} 115 * methods to define those properties. 116 * 117 * @param min the minimum point that defines the box. 118 * @param max the maximum point that defines the box. 119 */ 120 public Box(Vector3f min, Vector3f max) { 121 super(); 122 updateGeometry(min, max); 123 } 124 125 /** 126 * Empty constructor for serialization only. Do not use. 127 */ 128 public Box(){ 129 super(); 130 } 131 132 /** 133 * Creates a clone of this box. 134 * <p> 135 * The cloned box will have '_clone' appended to it's name, but all other 136 * properties will be the same as this box. 137 */ 138 @Override 139 public Box clone() { 140 return new Box(center.clone(), xExtent, yExtent, zExtent); 141 } 142 143 protected void duUpdateGeometryIndices() { 144 if (getBuffer(Type.Index) == null){ 145 setBuffer(Type.Index, 3, BufferUtils.createShortBuffer(GEOMETRY_INDICES_DATA)); 146 } 147 } 148 149 protected void duUpdateGeometryNormals() { 150 if (getBuffer(Type.Normal) == null){ 151 setBuffer(Type.Normal, 3, BufferUtils.createFloatBuffer(GEOMETRY_NORMALS_DATA)); 152 } 153 } 154 155 protected void duUpdateGeometryTextures() { 156 if (getBuffer(Type.TexCoord) == null){ 157 setBuffer(Type.TexCoord, 2, BufferUtils.createFloatBuffer(GEOMETRY_TEXTURE_DATA)); 158 } 159 } 160 161 protected void duUpdateGeometryVertices() { 162 FloatBuffer fpb = BufferUtils.createVector3Buffer(24); 163 Vector3f[] v = computeVertices(); 164 fpb.put(new float[] { 165 v[0].x, v[0].y, v[0].z, v[1].x, v[1].y, v[1].z, v[2].x, v[2].y, v[2].z, v[3].x, v[3].y, v[3].z, // back 166 v[1].x, v[1].y, v[1].z, v[4].x, v[4].y, v[4].z, v[6].x, v[6].y, v[6].z, v[2].x, v[2].y, v[2].z, // right 167 v[4].x, v[4].y, v[4].z, v[5].x, v[5].y, v[5].z, v[7].x, v[7].y, v[7].z, v[6].x, v[6].y, v[6].z, // front 168 v[5].x, v[5].y, v[5].z, v[0].x, v[0].y, v[0].z, v[3].x, v[3].y, v[3].z, v[7].x, v[7].y, v[7].z, // left 169 v[2].x, v[2].y, v[2].z, v[6].x, v[6].y, v[6].z, v[7].x, v[7].y, v[7].z, v[3].x, v[3].y, v[3].z, // top 170 v[0].x, v[0].y, v[0].z, v[5].x, v[5].y, v[5].z, v[4].x, v[4].y, v[4].z, v[1].x, v[1].y, v[1].z // bottom 171 }); 172 setBuffer(Type.Position, 3, fpb); 173 updateBound(); 174 } 175 176 }
