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Diffstat (limited to 'engine/src/core/com/jme3/scene/shape/StripBox.java')
| -rw-r--r-- | engine/src/core/com/jme3/scene/shape/StripBox.java | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/engine/src/core/com/jme3/scene/shape/StripBox.java b/engine/src/core/com/jme3/scene/shape/StripBox.java new file mode 100644 index 0000000..81abff9 --- /dev/null +++ b/engine/src/core/com/jme3/scene/shape/StripBox.java @@ -0,0 +1,191 @@ +/* + * Copyright (c) 2009-2010 jMonkeyEngine + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * * Neither the name of 'jMonkeyEngine' nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED + * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR + * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +// $Id: Box.java 4131 2009-03-19 20:15:28Z blaine.dev $ +package com.jme3.scene.shape; + +import com.jme3.math.Vector3f; +import com.jme3.scene.VertexBuffer.Type; +import com.jme3.util.BufferUtils; +import java.nio.FloatBuffer; + +/** + * A box with solid (filled) faces. + * + * @author Mark Powell + * @version $Revision: 4131 $, $Date: 2009-03-19 16:15:28 -0400 (Thu, 19 Mar 2009) $ + */ +public class StripBox extends AbstractBox { + + private static final short[] GEOMETRY_INDICES_DATA = + { 1, 0, 4, + 5, + 7, + 0, + 3, + 1, + 2, + 4, + 6, + 7, + 2, + 3 }; + + private static final float[] GEOMETRY_TEXTURE_DATA = { + 1, 0, + 0, 0, + 0, 1, + 1, 1, + + 1, 0, + 0, 0, + 1, 1, + 0, 1 + }; + + /** + * Creates a new box. + * <p> + * The box has a center of 0,0,0 and extends in the out from the center by + * the given amount in <em>each</em> direction. So, for example, a box + * with extent of 0.5 would be the unit cube. + * + * @param x the size of the box along the x axis, in both directions. + * @param y the size of the box along the y axis, in both directions. + * @param z the size of the box along the z axis, in both directions. + */ + public StripBox(float x, float y, float z) { + super(); + updateGeometry(Vector3f.ZERO, x, y, z); + } + + /** + * Creates a new box. + * <p> + * The box has the given center and extends in the out from the center by + * the given amount in <em>each</em> direction. So, for example, a box + * with extent of 0.5 would be the unit cube. + * + * @param center the center of the box. + * @param x the size of the box along the x axis, in both directions. + * @param y the size of the box along the y axis, in both directions. + * @param z the size of the box along the z axis, in both directions. + */ + public StripBox(Vector3f center, float x, float y, float z) { + super(); + updateGeometry(center, x, y, z); + } + + /** + * Constructor instantiates a new <code>Box</code> object. + * <p> + * The minimum and maximum point are provided, these two points define the + * shape and size of the box but not it’s orientation or position. You should + * use the {@link #setLocalTranslation()} and {@link #setLocalRotation()} + * methods to define those properties. + * + * @param min the minimum point that defines the box. + * @param max the maximum point that defines the box. + */ + public StripBox(Vector3f min, Vector3f max) { + super(); + updateGeometry(min, max); + } + + /** + * Empty constructor for serialization only. Do not use. + */ + public StripBox(){ + super(); + } + + /** + * Creates a clone of this box. + * <p> + * The cloned box will have ‘_clone’ appended to it’s name, but all other + * properties will be the same as this box. + */ + @Override + public StripBox clone() { + return new StripBox(center.clone(), xExtent, yExtent, zExtent); + } + + protected void duUpdateGeometryIndices() { + if (getBuffer(Type.Index) == null){ + setBuffer(Type.Index, 3, BufferUtils.createShortBuffer(GEOMETRY_INDICES_DATA)); + } + } + + protected void duUpdateGeometryNormals() { + if (getBuffer(Type.Normal) == null){ + float[] normals = new float[8 * 3]; + + Vector3f[] vert = computeVertices(); + Vector3f norm = new Vector3f(); + + for (int i = 0; i < 8; i++) { + norm.set(vert[i]).normalizeLocal(); + + normals[i * 3 + 0] = norm.x; + normals[i * 3 + 1] = norm.x; + normals[i * 3 + 2] = norm.x; + } + + setBuffer(Type.Normal, 3, BufferUtils.createFloatBuffer(normals)); + } + } + + protected void duUpdateGeometryTextures() { + if (getBuffer(Type.TexCoord) == null){ + setBuffer(Type.TexCoord, 2, BufferUtils.createFloatBuffer(GEOMETRY_TEXTURE_DATA)); + } + } + + protected void duUpdateGeometryVertices() { + FloatBuffer fpb = BufferUtils.createVector3Buffer(8 * 3); + Vector3f[] v = computeVertices(); + fpb.put(new float[] { + 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, + v[4].x, v[4].y, v[4].z, + v[5].x, v[5].y, v[5].z, + v[6].x, v[6].y, v[6].z, + v[7].x, v[7].y, v[7].z, + }); + setBuffer(Type.Position, 3, fpb); + setMode(Mode.TriangleStrip); + updateBound(); + } + +}
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