1 files changed, 150 insertions, 0 deletions
diff --git a/engine/src/jbullet/com/jme3/bullet/collision/shapes/CompoundCollisionShape.java b/engine/src/jbullet/com/jme3/bullet/collision/shapes/CompoundCollisionShape.java
new file mode 100644
index 0000000..1beb066
--- /dev/null
+++ b/engine/src/jbullet/com/jme3/bullet/collision/shapes/CompoundCollisionShape.java
@@ -0,0 +1,150 @@
+/*
+ * 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.
+ */
+package com.jme3.bullet.collision.shapes;
+
+import com.bulletphysics.collision.shapes.CompoundShape;
+import com.bulletphysics.linearmath.Transform;
+import com.jme3.bullet.collision.shapes.infos.ChildCollisionShape;
+import com.jme3.bullet.util.Converter;
+import com.jme3.export.InputCapsule;
+import com.jme3.export.JmeExporter;
+import com.jme3.export.JmeImporter;
+import com.jme3.export.OutputCapsule;
+import com.jme3.math.Matrix3f;
+import com.jme3.math.Vector3f;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * A CompoundCollisionShape allows combining multiple base shapes
+ * to generate a more sophisticated shape.
+ * @author normenhansen
+ */
+public class CompoundCollisionShape extends CollisionShape {
+
+    protected ArrayList<ChildCollisionShape> children = new ArrayList<ChildCollisionShape>();
+
+    public CompoundCollisionShape() {
+        cShape = new CompoundShape();
+    }
+
+    /**
+     * adds a child shape at the given local translation
+     * @param shape the child shape to add
+     * @param location the local location of the child shape
+     */
+    public void addChildShape(CollisionShape shape, Vector3f location) {
+        Transform transA = new Transform(Converter.convert(new Matrix3f()));
+        Converter.convert(location, transA.origin);
+        children.add(new ChildCollisionShape(location.clone(), new Matrix3f(), shape));
+        ((CompoundShape) cShape).addChildShape(transA, shape.getCShape());
+    }
+
+    /**
+     * adds a child shape at the given local translation
+     * @param shape the child shape to add
+     * @param location the local location of the child shape
+     */
+    public void addChildShape(CollisionShape shape, Vector3f location, Matrix3f rotation) {
+        if(shape instanceof CompoundCollisionShape){
+            throw new IllegalStateException("CompoundCollisionShapes cannot have CompoundCollisionShapes as children!");
+        }
+        Transform transA = new Transform(Converter.convert(rotation));
+        Converter.convert(location, transA.origin);
+        Converter.convert(rotation, transA.basis);
+        children.add(new ChildCollisionShape(location.clone(), rotation.clone(), shape));
+        ((CompoundShape) cShape).addChildShape(transA, shape.getCShape());
+    }
+
+    private void addChildShapeDirect(CollisionShape shape, Vector3f location, Matrix3f rotation) {
+        if(shape instanceof CompoundCollisionShape){
+            throw new IllegalStateException("CompoundCollisionShapes cannot have CompoundCollisionShapes as children!");
+        }
+        Transform transA = new Transform(Converter.convert(rotation));
+        Converter.convert(location, transA.origin);
+        Converter.convert(rotation, transA.basis);
+        ((CompoundShape) cShape).addChildShape(transA, shape.getCShape());
+    }
+
+    /**
+     * removes a child shape
+     * @param shape the child shape to remove
+     */
+    public void removeChildShape(CollisionShape shape) {
+        ((CompoundShape) cShape).removeChildShape(shape.getCShape());
+        for (Iterator<ChildCollisionShape> it = children.iterator(); it.hasNext();) {
+            ChildCollisionShape childCollisionShape = it.next();
+            if (childCollisionShape.shape == shape) {
+                it.remove();
+            }
+        }
+    }
+
+    public List<ChildCollisionShape> getChildren() {
+        return children;
+    }
+
+    /**
+     * WARNING - CompoundCollisionShape scaling has no effect.
+     */
+    @Override
+    public void setScale(Vector3f scale) {
+        Logger.getLogger(this.getClass().getName()).log(Level.WARNING, "CompoundCollisionShape cannot be scaled");
+    }
+
+    public void write(JmeExporter ex) throws IOException {
+        super.write(ex);
+        OutputCapsule capsule = ex.getCapsule(this);
+        capsule.writeSavableArrayList(children, "children", new ArrayList<ChildCollisionShape>());
+    }
+
+    public void read(JmeImporter im) throws IOException {
+        super.read(im);
+        InputCapsule capsule = im.getCapsule(this);
+        children = capsule.readSavableArrayList("children", new ArrayList<ChildCollisionShape>());
+        cShape.setLocalScaling(Converter.convert(getScale()));
+        cShape.setMargin(margin);
+        loadChildren();
+    }
+
+    private void loadChildren() {
+        for (Iterator<ChildCollisionShape> it = children.iterator(); it.hasNext();) {
+            ChildCollisionShape child = it.next();
+            addChildShapeDirect(child.shape, child.location, child.rotation);
+        }
+    }
+
+}