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- /*
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- * Copyright (c) 2009-2015 jMonkeyEngine
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- * All rights reserved.
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- *
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- * Redistribution and use in source and binary forms, with or without
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- * modification, are permitted provided that the following conditions are
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- * met:
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- *
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- * * Redistributions of source code must retain the above copyright
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- * notice, this list of conditions and the following disclaimer.
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- *
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- * * Redistributions in binary form must reproduce the above copyright
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- * notice, this list of conditions and the following disclaimer in the
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- * documentation and/or other materials provided with the distribution.
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- *
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- * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
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- * may be used to endorse or promote products derived from this software
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- * without specific prior written permission.
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- *
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- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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- * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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- */
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-package com.jme3.gde.scenecomposer.gizmo.light.shape;
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-
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-import com.jme3.asset.AssetManager;
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-import com.jme3.material.Material;
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-import com.jme3.material.RenderState;
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-import com.jme3.math.ColorRGBA;
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-import com.jme3.math.FastMath;
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-import com.jme3.renderer.queue.RenderQueue;
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-import com.jme3.scene.Geometry;
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-import com.jme3.scene.Mesh;
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-import com.jme3.scene.VertexBuffer.Type;
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-import com.jme3.scene.control.BillboardControl;
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-import com.jme3.util.BufferUtils;
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-import java.nio.FloatBuffer;
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-import java.nio.ShortBuffer;
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-
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-/**
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- *
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- * A debuging shape for a BoundingSphere
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- * Consists of 3 axis aligned circles.
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- *
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- * @author nehon
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- */
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-public class ProbeRadiusShape extends Mesh {
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-
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- protected int vertCount;
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- protected int triCount;
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- protected int radialSamples = 256;
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- protected boolean useEvenSlices;
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- protected boolean interior;
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- /**
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- * the distance from the center point each point falls on
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- */
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- public float radius;
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-
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- public float getRadius() {
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- return radius;
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- }
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-
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- public ProbeRadiusShape() {
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- setGeometryData();
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- setIndexData();
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- }
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-
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- /**
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- * builds the vertices based on the radius
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- */
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- private void setGeometryData() {
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- setMode(Mode.Lines);
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-
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- FloatBuffer posBuf = BufferUtils.createVector3Buffer((radialSamples + 1));
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- FloatBuffer colBuf = BufferUtils.createFloatBuffer((radialSamples + 1) * 4);
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- FloatBuffer texBuf = BufferUtils.createVector2Buffer(radialSamples + 1);
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-
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-
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- setBuffer(Type.Position, 3, posBuf);
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- setBuffer(Type.Color, 4, colBuf);
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- setBuffer(Type.TexCoord, 2, texBuf);
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-
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- // generate geometry
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- float fInvRS = 1.0f / radialSamples;
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-
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- // Generate points on the unit circle to be used in computing the mesh
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- // points on a sphere slice.
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- float[] afSin = new float[(radialSamples + 1)];
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- float[] afCos = new float[(radialSamples + 1)];
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- for (int iR = 0; iR < radialSamples; iR++) {
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- float fAngle = FastMath.TWO_PI * fInvRS * iR;
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- afCos[iR] = FastMath.cos(fAngle);
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- afSin[iR] = FastMath.sin(fAngle);
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- }
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- afSin[radialSamples] = afSin[0];
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- afCos[radialSamples] = afCos[0];
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-
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- for (int iR = 0; iR <= radialSamples; iR++) {
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- posBuf.put(afCos[iR])
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- .put(afSin[iR])
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- .put(0);
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- colBuf.put(ColorRGBA.Orange.r)
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- .put(ColorRGBA.Orange.g)
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- .put(ColorRGBA.Orange.b)
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- .put(ColorRGBA.Orange.a);
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- texBuf.put(iR % 2f)
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- .put(iR % 2f);
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-
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- }
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-
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- updateBound();
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- setStatic();
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- }
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-
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- /**
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- * sets the indices for rendering the sphere.
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- */
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- private void setIndexData() {
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- // allocate connectivity
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- int nbSegments = (radialSamples);// * 3;
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-
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- ShortBuffer idxBuf = BufferUtils.createShortBuffer(2 * nbSegments);
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- setBuffer(Type.Index, 2, idxBuf);
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-
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- int idx = 0;
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- int segDone = 0;
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- while (segDone < nbSegments) {
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- idxBuf.put((short) idx);
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- idxBuf.put((short) (idx + 1));
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- idx++;
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- segDone++;
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- }
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-
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- }
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-
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-
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- /**
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- * Convenience factory method that creates a debuging bounding sphere geometry
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- * @param assetManager the assetManager
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- * @return the bounding sphere debug geometry.
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- */
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- public static Geometry createShape(AssetManager assetManager) {
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- ProbeRadiusShape b = new ProbeRadiusShape();
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- Geometry geom = new Geometry("BoundingDebug", b);
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-
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- Material mat = new Material(assetManager, "com/jme3/gde/scenecomposer/gizmo/light/mat/dashed/dashed.j3md");
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- mat.getAdditionalRenderState().setWireframe(true);
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- mat.getAdditionalRenderState().setBlendMode(RenderState.BlendMode.Alpha);
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- mat.getAdditionalRenderState().setDepthWrite(false);
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- mat.getAdditionalRenderState().setDepthTest(false);
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- mat.setFloat("DashSize", 0.5f);
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- geom.setQueueBucket(RenderQueue.Bucket.Transparent);
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- geom.addControl(new BillboardControl());
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-
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-
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- geom.setMaterial(mat);
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- return geom;
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-
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- }
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-}
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