Make all attributes cloneable

VadereState/src/org/vadere/state/attributes/Attributes.java

@@ -16,7 +16,18 @@ package org.vadere.state.attributes;
  * VPoint,...).
  * 
  */
-public abstract class Attributes extends DefaultSealable {
+public abstract class Attributes extends DefaultSealable implements Cloneable {
 	/** Used for default ID values of some scenario elements. */
 	protected static final int ID_NOT_SET = -1;
+
+	public Attributes() {}
+
+	public Attributes cloneAttributes() {
+		try {
+			return (Attributes) super.clone();
+		} catch (CloneNotSupportedException e) {
+			throw new RuntimeException("This should never happen because the base class Attributes is Cloneable.");
+		}
+	}
+
 }

VadereState/tests/org/vadere/state/attributes/TestAttributesCloneable.java

+package org.vadere.state.attributes;
+
+import static org.junit.Assert.*;
+
+import org.junit.Test;
+
+public class TestAttributesCloneable {
+	
+	private static class SimpleAttributes extends Attributes {
+		int id = 1;
+	}
+
+	private static class NestedAttributes extends Attributes {
+		int id = 1;
+		SimpleAttributes c = new SimpleAttributes();
+		SimpleCloneable d = new SimpleCloneable();
+	}
+
+	private static class SimpleCloneable implements Cloneable {
+		int id = 1;
+	}
+
+	private static class NotCloneableClass {
+		@Override
+		public Object clone() throws CloneNotSupportedException {
+			return super.clone(); // throws exception because it does not implement Cloneable
+		}
+	}
+
+	@Test
+	public void testSimpleCloneable() {
+		try {
+			SimpleAttributes a = new SimpleAttributes();
+			SimpleAttributes b = (SimpleAttributes) a.cloneAttributes();
+			assertEquals(a.id, b.id);
+		} catch (Exception e) {
+			fail("clone should not throw exception");
+		}
+	}
+
+	@Test
+	public void testExtendedCloneable() {
+		try {
+			NestedAttributes a = new NestedAttributes();
+			NestedAttributes b = (NestedAttributes) a.cloneAttributes();
+			assertEquals(a.id, b.id);
+			assertEquals(a.c.id, b.c.id);
+			assertEquals(a.d.id, b.d.id);
+		} catch (Exception e) {
+			fail("clone should not throw exception");
+		}
+	}
+	
+	@Test(expected=CloneNotSupportedException.class)
+	public void testNotCloneableClass() throws CloneNotSupportedException {
+		new NotCloneableClass().clone();
+	}
+
+}

VadereUtils/src/org/vadere/util/geometry/shapes/VPoint.java

@@ -11,7 +11,7 @@ import org.vadere.util.geometry.GeometryUtils;
  * 
  * 
  */
-public class VPoint {
+public class VPoint implements Cloneable {
 
 	public static final VPoint ZERO = new VPoint(0, 0);
 

VadereUtils/src/org/vadere/util/geometry/shapes/VShape.java

@@ -7,9 +7,8 @@ import org.vadere.util.geometry.ShapeType;
 /**
  * Geometric shape and position.
  * 
- * 
  */
-public interface VShape extends Shape {
+public interface VShape extends Shape, Cloneable {
 	double distance(VPoint point);
 
 	VPoint closestPoint(VPoint point);