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/*
* Copyright (c) 2009-2012 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.
*/
package com.jme3.scene;
import java.nio.Buffer;
import java.nio.FloatBuffer;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.jme3.collision.Collidable;
import com.jme3.collision.CollisionResults;
import com.jme3.material.Material;
import com.jme3.math.Matrix4f;
import com.jme3.math.Vector3f;
import com.jme3.scene.mesh.IndexBuffer;
import com.jme3.util.SafeArrayList;
import com.jme3.util.TempVars;
import com.jme3.util.clone.Cloner;
import com.jme3.util.clone.JmeCloneable;
/**
* BatchNode holds geometries that are a batched version of all the geometries that are in its sub scenegraph.
* There is one geometry per different material in the sub tree.
* The geometries are directly attached to the node in the scene graph.
* Usage is like any other node except you have to call the {@link #batch()} method once all the geometries have been attached to the sub scene graph and their material set
* (see todo more automagic for further enhancements)
* All the geometries that have been batched are set to not be rendered - {@link CullHint} is left intact.
* The sub geometries can be transformed as usual, their transforms are used to update the mesh of the geometryBatch.
* Sub geoms can be removed but it may be slower than the normal spatial removing
* Sub geoms can be added after the batch() method has been called but won't be batched and will just be rendered as normal geometries.
* To integrate them in the batch you have to call the batch() method again on the batchNode.
*
* TODO normal or tangents or both looks a bit weird
* TODO more automagic (batch when needed in the updateLogicalState)
* @author Nehon
*/
public class BatchNode extends GeometryGroupNode {
private static final Logger logger = Logger.getLogger(BatchNode.class.getName());
/**
* the list of geometry holding the batched meshes
*/
protected SafeArrayList batches = new SafeArrayList(Batch.class);
/**
* a map for storing the batches by geometry to quickly access the batch when updating
*/
protected Map batchesByGeom = new HashMap();
/**
* used to store transformed vectors before proceeding to a bulk put into the FloatBuffer
*/
private float[] tmpFloat;
private float[] tmpFloatN;
private float[] tmpFloatT;
int maxVertCount = 0;
boolean useTangents = false;
boolean needsFullRebatch = true;
/**
* Construct a batchNode
*/
public BatchNode() {
super();
}
public BatchNode(String name) {
super(name);
}
@Override
public void onTransformChange(Geometry geom) {
updateSubBatch(geom);
}
@Override
public void onMaterialChange(Geometry geom) {
throw new UnsupportedOperationException(
"Cannot set the material of a batched geometry, "
+ "change the material of the parent BatchNode.");
}
@Override
public void onMeshChange(Geometry geom) {
throw new UnsupportedOperationException(
"Cannot set the mesh of a batched geometry");
}
@Override
public void onGeometryUnassociated(Geometry geom) {
setNeedsFullRebatch(true);
}
protected Matrix4f getTransformMatrix(Geometry g){
return g.cachedWorldMat;
}
protected void updateSubBatch(Geometry bg) {
Batch batch = batchesByGeom.get(bg);
if (batch != null) {
Mesh mesh = batch.geometry.getMesh();
Mesh origMesh = bg.getMesh();
VertexBuffer pvb = mesh.getBuffer(VertexBuffer.Type.Position);
FloatBuffer posBuf = (FloatBuffer) pvb.getData();
VertexBuffer nvb = mesh.getBuffer(VertexBuffer.Type.Normal);
FloatBuffer normBuf = (FloatBuffer) nvb.getData();
VertexBuffer opvb = origMesh.getBuffer(VertexBuffer.Type.Position);
FloatBuffer oposBuf = (FloatBuffer) opvb.getData();
VertexBuffer onvb = origMesh.getBuffer(VertexBuffer.Type.Normal);
FloatBuffer onormBuf = (FloatBuffer) onvb.getData();
Matrix4f transformMat = getTransformMatrix(bg);
if (mesh.getBuffer(VertexBuffer.Type.Tangent) != null) {
VertexBuffer tvb = mesh.getBuffer(VertexBuffer.Type.Tangent);
FloatBuffer tanBuf = (FloatBuffer) tvb.getData();
VertexBuffer otvb = origMesh.getBuffer(VertexBuffer.Type.Tangent);
FloatBuffer otanBuf = (FloatBuffer) otvb.getData();
doTransformsTangents(oposBuf, onormBuf, otanBuf, posBuf, normBuf, tanBuf, bg.startIndex, bg.startIndex + bg.getVertexCount(), transformMat);
tvb.updateData(tanBuf);
} else {
doTransforms(oposBuf, onormBuf, posBuf, normBuf, bg.startIndex, bg.startIndex + bg.getVertexCount(), transformMat);
}
pvb.updateData(posBuf);
nvb.updateData(normBuf);
batch.geometry.updateModelBound();
}
}
/**
* Batch this batchNode
* every geometry of the sub scene graph of this node will be batched into a single mesh that will be rendered in one call
*/
public void batch() {
doBatch();
//we set the batch geometries to ignore transforms to avoid transforms of parent nodes to be applied twice
for (Batch batch : batches.getArray()) {
batch.geometry.setIgnoreTransform(true);
batch.geometry.setUserData(UserData.JME_PHYSICSIGNORE, true);
}
}
protected void doBatch() {
Map> matMap = new HashMap>();
int nbGeoms = 0;
gatherGeometries(matMap, this, needsFullRebatch);
if (needsFullRebatch) {
for (Batch batch : batches.getArray()) {
batch.geometry.removeFromParent();
}
batches.clear();
batchesByGeom.clear();
}
//only reset maxVertCount if there is something new to batch
if (matMap.size() > 0) {
maxVertCount = 0;
}
for (Map.Entry> entry : matMap.entrySet()) {
Mesh m = new Mesh();
Material material = entry.getKey();
List list = entry.getValue();
nbGeoms += list.size();
String batchName = name + "-batch" + batches.size();
Batch batch;
if (!needsFullRebatch) {
batch = findBatchByMaterial(material);
if (batch != null) {
list.add(0, batch.geometry);
batchName = batch.geometry.getName();
batch.geometry.removeFromParent();
} else {
batch = new Batch();
}
} else {
batch = new Batch();
}
mergeGeometries(m, list);
m.setDynamic();
batch.updateGeomList(list);
batch.geometry = new Geometry(batchName);
batch.geometry.setMaterial(material);
this.attachChild(batch.geometry);
batch.geometry.setMesh(m);
batch.geometry.getMesh().updateCounts();
batch.geometry.updateModelBound();
batches.add(batch);
}
if (batches.size() > 0) {
needsFullRebatch = false;
}
logger.log(Level.FINE, "Batched {0} geometries in {1} batches.", new Object[]{nbGeoms, batches.size()});
//init the temp arrays if something has been batched only.
if(matMap.size()>0){
//TODO these arrays should be allocated by chunk instead to avoid recreating them each time the batch is changed.
//init temp float arrays
tmpFloat = new float[maxVertCount * 3];
tmpFloatN = new float[maxVertCount * 3];
if (useTangents) {
tmpFloatT = new float[maxVertCount * 4];
}
}
}
//in case the detached spatial is a node, we unbatch all geometries in its subegraph
@Override
public Spatial detachChildAt(int index) {
Spatial s = super.detachChildAt(index);
if (s instanceof Node) {
unbatchSubGraph(s);
}
return s;
}
/**
* recursively visit the subgraph and unbatch geometries
* @param s
*/
private void unbatchSubGraph(Spatial s) {
if (s instanceof Node) {
for (Spatial sp : ((Node) s).getChildren()) {
unbatchSubGraph(sp);
}
} else if (s instanceof Geometry) {
Geometry g = (Geometry) s;
if (g.isGrouped()) {
g.unassociateFromGroupNode();
}
}
}
private void gatherGeometries(Map> map, Spatial n, boolean rebatch) {
if (n instanceof Geometry) {
if (!isBatch(n) && n.getBatchHint() != BatchHint.Never) {
Geometry g = (Geometry) n;
if (!g.isGrouped() || rebatch) {
if (g.getMaterial() == null) {
throw new IllegalStateException("No material is set for Geometry: " + g.getName() + " please set a material before batching");
}
List list = map.get(g.getMaterial());
if (list == null) {
//trying to compare materials with the isEqual method
for (Map.Entry> mat : map.entrySet()) {
if (g.getMaterial().contentEquals(mat.getKey())) {
list = mat.getValue();
}
}
}
if (list == null) {
list = new ArrayList();
map.put(g.getMaterial(), list);
}
g.setTransformRefresh();
list.add(g);
}
}
} else if (n instanceof Node) {
for (Spatial child : ((Node) n).getChildren()) {
if (child instanceof BatchNode) {
continue;
}
gatherGeometries(map, child, rebatch);
}
}
}
private Batch findBatchByMaterial(Material m) {
for (Batch batch : batches.getArray()) {
if (batch.geometry.getMaterial().contentEquals(m)) {
return batch;
}
}
return null;
}
public final boolean isBatch(Spatial s) {
for (Batch batch : batches.getArray()) {
if (batch.geometry == s) {
return true;
}
}
return false;
}
/**
* Sets the material to the all the batches of this BatchNode
* use setMaterial(Material material,int batchIndex) to set a material to a specific batch
*
* @param material the material to use for this geometry
*/
@Override
public void setMaterial(Material material) {
throw new UnsupportedOperationException("Unsupported for now, please set the material on the geoms before batching");
}
/**
* Returns the material that is used for the first batch of this BatchNode
*
* use getMaterial(Material material,int batchIndex) to get a material from a specific batch
*
* @return the material that is used for the first batch of this BatchNode
*
* @see #setMaterial(com.jme3.material.Material)
*/
public Material getMaterial() {
if (!batches.isEmpty()) {
Batch b = batches.iterator().next();
return b.geometry.getMaterial();
}
return null;
}
/**
* Merges all geometries in the collection into
* the output mesh. Does not take into account materials.
*
* @param geometries
* @param outMesh
*/
private void mergeGeometries(Mesh outMesh, List geometries) {
int[] compsForBuf = new int[VertexBuffer.Type.values().length];
VertexBuffer.Format[] formatForBuf = new VertexBuffer.Format[compsForBuf.length];
boolean[] normForBuf = new boolean[VertexBuffer.Type.values().length];
int totalVerts = 0;
int totalTris = 0;
int totalLodLevels = 0;
int maxWeights = -1;
Mesh.Mode mode = null;
float lineWidth = 1f;
for (Geometry geom : geometries) {
totalVerts += geom.getVertexCount();
totalTris += geom.getTriangleCount();
totalLodLevels = Math.min(totalLodLevels, geom.getMesh().getNumLodLevels());
if (maxVertCount < geom.getVertexCount()) {
maxVertCount = geom.getVertexCount();
}
Mesh.Mode listMode;
//float listLineWidth = 1f;
int components;
switch (geom.getMesh().getMode()) {
case Points:
listMode = Mesh.Mode.Points;
components = 1;
break;
case LineLoop:
case LineStrip:
case Lines:
listMode = Mesh.Mode.Lines;
//listLineWidth = geom.getMesh().getLineWidth();
components = 2;
break;
case TriangleFan:
case TriangleStrip:
case Triangles:
listMode = Mesh.Mode.Triangles;
components = 3;
break;
default:
throw new UnsupportedOperationException();
}
for (VertexBuffer vb : geom.getMesh().getBufferList().getArray()) {
int currentCompsForBuf = compsForBuf[vb.getBufferType().ordinal()];
if (vb.getBufferType() != VertexBuffer.Type.Index && currentCompsForBuf != 0 && currentCompsForBuf != vb.getNumComponents()) {
throw new UnsupportedOperationException("The geometry " + geom + " buffer " + vb.getBufferType()
+ " has different number of components than the rest of the meshes "
+ "(this: " + vb.getNumComponents() + ", expected: " + currentCompsForBuf + ")");
}
compsForBuf[vb.getBufferType().ordinal()] = vb.getNumComponents();
formatForBuf[vb.getBufferType().ordinal()] = vb.getFormat();
normForBuf[vb.getBufferType().ordinal()] = vb.isNormalized();
}
maxWeights = Math.max(maxWeights, geom.getMesh().getMaxNumWeights());
if (mode != null && mode != listMode) {
throw new UnsupportedOperationException("Cannot combine different"
+ " primitive types: " + mode + " != " + listMode);
}
mode = listMode;
//Not needed anymore as lineWidth is now in RenderState and will be taken into account when merging according to the material
// if (mode == Mesh.Mode.Lines) {
// if (lineWidth != 1f && listLineWidth != lineWidth) {
// throw new UnsupportedOperationException("When using Mesh Line mode, cannot combine meshes with different line width "
// + lineWidth + " != " + listLineWidth);
// }
// lineWidth = listLineWidth;
// }
compsForBuf[VertexBuffer.Type.Index.ordinal()] = components;
}
outMesh.setMaxNumWeights(maxWeights);
outMesh.setMode(mode);
//outMesh.setLineWidth(lineWidth);
if (totalVerts >= 65536) {
// make sure we create an UnsignedInt buffer so we can fit all of the meshes
formatForBuf[VertexBuffer.Type.Index.ordinal()] = VertexBuffer.Format.UnsignedInt;
} else {
formatForBuf[VertexBuffer.Type.Index.ordinal()] = VertexBuffer.Format.UnsignedShort;
}
// generate output buffers based on retrieved info
for (int i = 0; i < compsForBuf.length; i++) {
if (compsForBuf[i] == 0) {
continue;
}
Buffer data;
if (i == VertexBuffer.Type.Index.ordinal()) {
data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalTris);
} else {
data = VertexBuffer.createBuffer(formatForBuf[i], compsForBuf[i], totalVerts);
}
VertexBuffer vb = new VertexBuffer(VertexBuffer.Type.values()[i]);
vb.setupData(VertexBuffer.Usage.Dynamic, compsForBuf[i], formatForBuf[i], data);
vb.setNormalized(normForBuf[i]);
outMesh.setBuffer(vb);
}
int globalVertIndex = 0;
int globalTriIndex = 0;
for (Geometry geom : geometries) {
Mesh inMesh = geom.getMesh();
if (!isBatch(geom)) {
geom.associateWithGroupNode(this, globalVertIndex);
}
int geomVertCount = inMesh.getVertexCount();
int geomTriCount = inMesh.getTriangleCount();
for (int bufType = 0; bufType < compsForBuf.length; bufType++) {
VertexBuffer inBuf = inMesh.getBuffer(VertexBuffer.Type.values()[bufType]);
VertexBuffer outBuf = outMesh.getBuffer(VertexBuffer.Type.values()[bufType]);
if (outBuf == null) {
continue;
}
if (VertexBuffer.Type.Index.ordinal() == bufType) {
int components = compsForBuf[bufType];
IndexBuffer inIdx = inMesh.getIndicesAsList();
IndexBuffer outIdx = outMesh.getIndexBuffer();
for (int tri = 0; tri < geomTriCount; tri++) {
for (int comp = 0; comp < components; comp++) {
int idx = inIdx.get(tri * components + comp) + globalVertIndex;
outIdx.put((globalTriIndex + tri) * components + comp, idx);
}
}
} else if (VertexBuffer.Type.Position.ordinal() == bufType) {
FloatBuffer inPos = (FloatBuffer) inBuf.getData();
FloatBuffer outPos = (FloatBuffer) outBuf.getData();
doCopyBuffer(inPos, globalVertIndex, outPos, 3);
} else if (VertexBuffer.Type.Normal.ordinal() == bufType || VertexBuffer.Type.Tangent.ordinal() == bufType) {
FloatBuffer inPos = (FloatBuffer) inBuf.getData();
FloatBuffer outPos = (FloatBuffer) outBuf.getData();
doCopyBuffer(inPos, globalVertIndex, outPos, compsForBuf[bufType]);
if (VertexBuffer.Type.Tangent.ordinal() == bufType) {
useTangents = true;
}
} else {
if (inBuf == null) {
throw new IllegalArgumentException("Geometry " + geom.getName() + " has no " + outBuf.getBufferType() + " buffer whereas other geoms have. all geometries should have the same types of buffers.\n Try to use GeometryBatchFactory.alignBuffer() on the BatchNode before batching");
} else if (outBuf == null) {
throw new IllegalArgumentException("Geometry " + geom.getName() + " has a " + outBuf.getBufferType() + " buffer whereas other geoms don't. all geometries should have the same types of buffers.\n Try to use GeometryBatchFactory.alignBuffer() on the BatchNode before batching");
} else {
inBuf.copyElements(0, outBuf, globalVertIndex, geomVertCount);
}
}
}
globalVertIndex += geomVertCount;
globalTriIndex += geomTriCount;
}
}
private void doTransforms(FloatBuffer bindBufPos, FloatBuffer bindBufNorm, FloatBuffer bufPos, FloatBuffer bufNorm, int start, int end, Matrix4f transform) {
TempVars vars = TempVars.get();
Vector3f pos = vars.vect1;
Vector3f norm = vars.vect2;
int length = (end - start) * 3;
// offset is given in element units
// convert to be in component units
int offset = start * 3;
bindBufPos.rewind();
bindBufNorm.rewind();
//bufPos.position(offset);
//bufNorm.position(offset);
bindBufPos.get(tmpFloat, 0, length);
bindBufNorm.get(tmpFloatN, 0, length);
int index = 0;
while (index < length) {
pos.x = tmpFloat[index];
norm.x = tmpFloatN[index++];
pos.y = tmpFloat[index];
norm.y = tmpFloatN[index++];
pos.z = tmpFloat[index];
norm.z = tmpFloatN[index];
transform.mult(pos, pos);
transform.multNormal(norm, norm);
index -= 2;
tmpFloat[index] = pos.x;
tmpFloatN[index++] = norm.x;
tmpFloat[index] = pos.y;
tmpFloatN[index++] = norm.y;
tmpFloat[index] = pos.z;
tmpFloatN[index++] = norm.z;
}
vars.release();
bufPos.position(offset);
//using bulk put as it's faster
bufPos.put(tmpFloat, 0, length);
bufNorm.position(offset);
//using bulk put as it's faster
bufNorm.put(tmpFloatN, 0, length);
}
private void doTransformsTangents(FloatBuffer bindBufPos, FloatBuffer bindBufNorm, FloatBuffer bindBufTangents,FloatBuffer bufPos, FloatBuffer bufNorm, FloatBuffer bufTangents, int start, int end, Matrix4f transform) {
TempVars vars = TempVars.get();
Vector3f pos = vars.vect1;
Vector3f norm = vars.vect2;
Vector3f tan = vars.vect3;
int length = (end - start) * 3;
int tanLength = (end - start) * 4;
// offset is given in element units
// convert to be in component units
int offset = start * 3;
int tanOffset = start * 4;
bindBufPos.rewind();
bindBufNorm.rewind();
bindBufTangents.rewind();
bindBufPos.get(tmpFloat, 0, length);
bindBufNorm.get(tmpFloatN, 0, length);
bindBufTangents.get(tmpFloatT, 0, tanLength);
int index = 0;
int tanIndex = 0;
while (index < length) {
pos.x = tmpFloat[index];
norm.x = tmpFloatN[index++];
pos.y = tmpFloat[index];
norm.y = tmpFloatN[index++];
pos.z = tmpFloat[index];
norm.z = tmpFloatN[index];
tan.x = tmpFloatT[tanIndex++];
tan.y = tmpFloatT[tanIndex++];
tan.z = tmpFloatT[tanIndex++];
transform.mult(pos, pos);
transform.multNormal(norm, norm);
transform.multNormal(tan, tan);
index -= 2;
tanIndex -= 3;
tmpFloat[index] = pos.x;
tmpFloatN[index++] = norm.x;
tmpFloat[index] = pos.y;
tmpFloatN[index++] = norm.y;
tmpFloat[index] = pos.z;
tmpFloatN[index++] = norm.z;
tmpFloatT[tanIndex++] = tan.x;
tmpFloatT[tanIndex++] = tan.y;
tmpFloatT[tanIndex++] = tan.z;
//Skipping 4th element of tangent buffer (handedness)
tanIndex++;
}
vars.release();
bufPos.position(offset);
//using bulk put as it's faster
bufPos.put(tmpFloat, 0, length);
bufNorm.position(offset);
//using bulk put as it's faster
bufNorm.put(tmpFloatN, 0, length);
bufTangents.position(tanOffset);
//using bulk put as it's faster
bufTangents.put(tmpFloatT, 0, tanLength);
}
private void doCopyBuffer(FloatBuffer inBuf, int offset, FloatBuffer outBuf, int componentSize) {
TempVars vars = TempVars.get();
Vector3f pos = vars.vect1;
// offset is given in element units
// convert to be in component units
offset *= componentSize;
for (int i = 0; i < inBuf.limit() / componentSize; i++) {
pos.x = inBuf.get(i * componentSize + 0);
pos.y = inBuf.get(i * componentSize + 1);
pos.z = inBuf.get(i * componentSize + 2);
outBuf.put(offset + i * componentSize + 0, pos.x);
outBuf.put(offset + i * componentSize + 1, pos.y);
outBuf.put(offset + i * componentSize + 2, pos.z);
}
vars.release();
}
protected class Batch implements JmeCloneable {
/**
* update the batchesByGeom map for this batch with the given List of geometries
* @param list
*/
void updateGeomList(List list) {
for (Geometry geom : list) {
if (!isBatch(geom)) {
batchesByGeom.put(geom, this);
}
}
}
Geometry geometry;
public final Geometry getGeometry() {
return geometry;
}
@Override
public Batch jmeClone() {
try {
return (Batch)super.clone();
} catch (CloneNotSupportedException ex) {
throw new AssertionError();
}
}
@Override
public void cloneFields( Cloner cloner, Object original ) {
this.geometry = cloner.clone(geometry);
}
}
protected void setNeedsFullRebatch(boolean needsFullRebatch) {
this.needsFullRebatch = needsFullRebatch;
}
@Override
public Node clone(boolean cloneMaterials) {
BatchNode clone = (BatchNode)super.clone(cloneMaterials);
if ( batches.size() > 0) {
for ( Batch b : batches ) {
for ( int i =0; i < clone.children.size(); i++ ) {
if ( clone.children.get(i).getName().equals(b.geometry.getName())) {
clone.children.remove(i);
break;
}
}
}
clone.needsFullRebatch = true;
clone.batches = new SafeArrayList(Batch.class);
clone.batchesByGeom = new HashMap();
clone.batch();
}
return clone;
}
/**
* Called internally by com.jme3.util.clone.Cloner. Do not call directly.
*/
@Override
public void cloneFields( Cloner cloner, Object original ) {
super.cloneFields(cloner, original);
this.batches = cloner.clone(batches);
this.tmpFloat = cloner.clone(tmpFloat);
this.tmpFloatN = cloner.clone(tmpFloatN);
this.tmpFloatT = cloner.clone(tmpFloatT);
HashMap newBatchesByGeom = new HashMap();
for( Map.Entry e : batchesByGeom.entrySet() ) {
newBatchesByGeom.put(cloner.clone(e.getKey()), cloner.clone(e.getValue()));
}
this.batchesByGeom = newBatchesByGeom;
}
@Override
public int collideWith(Collidable other, CollisionResults results) {
int total = 0;
for (Spatial child : children.getArray()){
if (!isBatch(child)) {
total += child.collideWith(other, results);
}
}
return total;
}
}
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