com.jme3.scene.shape.StripBox Maven / Gradle / Ivy
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/*
* Copyright (c) 2009-2020 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,
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// $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 =
{ 0, 1, 4,
2,
6,
7,
4,
5,
0,
7,
3,
2,
0,
1};
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.
*
* The box has a center of 0,0,0 and extends in the out from the center by
* the given amount in each 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.
*
* The box has the given center and extends in the out from the center by
* the given amount in each 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 Box object.
*
* 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 com.jme3.scene.Spatial#setLocalTranslation(com.jme3.math.Vector3f) } and {@link com.jme3.scene.Spatial#setLocalRotation(com.jme3.math.Quaternion) }
* 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.
*/
protected StripBox(){
super();
}
/**
* Creates a clone of this box.
*
* 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);
}
@Override
protected void doUpdateGeometryIndices() {
if (getBuffer(Type.Index) == null){
setBuffer(Type.Index, 3, BufferUtils.createShortBuffer(GEOMETRY_INDICES_DATA));
}
}
@Override
protected void doUpdateGeometryNormals() {
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.y;
normals[i * 3 + 2] = norm.z;
}
setBuffer(Type.Normal, 3, BufferUtils.createFloatBuffer(normals));
}
}
@Override
protected void doUpdateGeometryTextures() {
if (getBuffer(Type.TexCoord) == null){
setBuffer(Type.TexCoord, 2, BufferUtils.createFloatBuffer(GEOMETRY_TEXTURE_DATA));
}
}
@Override
protected void doUpdateGeometryVertices() {
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();
}
}